WO2015164509A1 - Razor cartridge guards - Google Patents

Razor cartridge guards Download PDF

Info

Publication number
WO2015164509A1
WO2015164509A1 PCT/US2015/027103 US2015027103W WO2015164509A1 WO 2015164509 A1 WO2015164509 A1 WO 2015164509A1 US 2015027103 W US2015027103 W US 2015027103W WO 2015164509 A1 WO2015164509 A1 WO 2015164509A1
Authority
WO
WIPO (PCT)
Prior art keywords
fins
blades
housing
elastomeric
guard member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2015/027103
Other languages
French (fr)
Inventor
John W. Griffin
Craig A. PROVOST
William E. Tucker
Douglas R. Kohring
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shavelogic Inc
Original Assignee
Shavelogic Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shavelogic Inc filed Critical Shavelogic Inc
Priority to EP15783488.8A priority Critical patent/EP3134235B1/en
Priority to BR112016024696-9A priority patent/BR112016024696B1/en
Priority to KR1020167032809A priority patent/KR102480097B1/en
Priority to CN201590000465.5U priority patent/CN206510078U/en
Publication of WO2015164509A1 publication Critical patent/WO2015164509A1/en
Priority to US15/331,058 priority patent/US10967531B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40—Details or accessories
    • B26B21/4012—Housing details, e.g. for cartridges
    • B26B21/4018—Guard elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/08—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor involving changeable blades
    • B26B21/14—Safety razors with one or more blades arranged transversely to the handle
    • B26B21/22—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously
    • B26B21/222—Safety razors with one or more blades arranged transversely to the handle involving several blades to be used simultaneously with the blades moulded into, or attached to, a changeable unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40—Details or accessories
    • B26B21/4012—Housing details, e.g. for cartridges

Definitions

  • Razor cartridges customarily have elastomeric guards that are positioned to stretch and smooth the skin prior to the blades contacting the skin. In some cases these guards have a plurality of fins.
  • this invention relates to razor cartridges with elastomeric guards.
  • the guards have a plurality of curved fins.
  • at least some of the fins are of substantially the same length, e.g., their chord lengths are within 10% of each other, e.g. within 5%.
  • the invention features a razor cartridge comprising a housing, one or more blades disposed in the housing, and an elastomeric guard member disposed on the housing and positioned to contact the skin prior to the blades, the guard member comprising a plurality of fins that are arcs of concentric circles.
  • Some implementations include one or more of the following features.
  • the guard member may include from 2 to 8 fins. At least two of the fins may have a length that is at least 19 mm. The height of at least some of the fins in relation to each other may increase with increasing proximity of the fins to the blades. The radii of curvature of the tips of the fins may be from about 0.025 to 1.12 mm. The fins may have arc lengths from about 19.05 to 50.8 millimeters.
  • the fin closest to the blades may be taller than the blades, and may function as an elastomeric guard bar.
  • the housing comprises a guard bar support positioned against the elastomeric guard bar.
  • the fins may be formed, for example, of an elastomer having a durometer of 20 to 80 Shore A. In some cases, distal ends of the fins are free to move, e.g., because they are not joined to the sides of the guard member or the housing
  • the invention features a razor cartridge comprising a housing, one or more blades disposed in the housing, and an elastomeric guard member disposed on the housing and positioned to contact the skin prior to the blades, the guard member comprising a plurality of curved fins, at least two of the fins having a length that is within 50 percent of each other.
  • Some implementations of this aspect of the invention may include any of the above features, and/or any one or more of the following features.
  • At least two of the fins, and in some cases all of the fins, may have a length that is within 20 percent of each other.
  • the fins may have a width of from about 19 to 63.5 mm.
  • the invention features a razor cartridge comprising a housing, one or more blades disposed in the housing, and an elastomeric guard member disposed on the housing and positioned to contact the skin prior to the blades, the guard member comprising a plurality of curved fins extending from a common base, wherein at least two of the fins extend from the base to different heights.
  • Some implementations of this aspect of the invention may include any of the above features.
  • FIG. 1 is a perspective view of a razor cartridge.
  • FIG. 2 is a perspective view of the cartridge shown in FIG. 1 rotated 180°.
  • FIG. 3 is a planar-top view of the cartridge.
  • FIG. 4 is sectional view of the cartridge taken along line 4 shown in FIG. 3.
  • razor cartridge 5 includes a cartridge housing 10.
  • a plurality of blades 16 are positioned within cartridge housing 10 substantially parallel to a long edge of the cartridge housing 10.
  • An elastomeric guard 18 having a plurality of fins 20 is mounted on a long edge of the cartridge housing 10.
  • the guard 18 also includes an integral guard bar 25.
  • Guard bar support 26 is disposed between fins 20 and blades 16 on the housing.
  • Moisturizing strip 12 is positioned behind the blades on the opposite long edge of the cartridge housing.
  • guard bar 25 prepares, i.e., straightens and stretches, the skin and hair prior to contact with the blades.
  • Guard bar support 26 stabilizes guard bar 25 keeping guard bar 25 from deflecting or moving.
  • the guard bar support is preferably constructed from a hard plastic to give it sufficient rigidity to provide this support.
  • fins 20 are curved such that they are arcs of concentric circles. Each of the fins has a relatively large radius of curvature, relative to the length of the cartridge, such that the fins appear to be almost straight. In preferred
  • the difference between the radii of curvature of the fins along their length is relatively small or non-existent.
  • the edges of fins 20 are not connected to each other or to the cartridge housing 16, allowing the fins to flex at their edge.
  • the fins extend substantially the entire length of the cartridge.
  • the leading fin 20a which contacts the skin first, is slightly longer than the other two fins 20b, 20c.
  • the arc lengths of the fins could be from about 19 to 51 millimeters, e.g., from about 28 to 48 millimeters.
  • the radii of the tips of fins 20 are preferably relatively small, e.g., 0.05 millimeters. In some cases, the radii could be from 0.025 to 1.12 millimeters, for example from 0.02 to 0.07 millimeters.
  • the distance between each fin is preferably about 1 millimeter but could be less, e.g., about 0.5 millimeters or more, e.g. about 1.5 millimeters.
  • the curved configuration of the fins causes them to non-uniformly collapse, which in combination with the free-flexing nature of the fins, provides differential skin stretching as the guard moves over the skin.
  • the differential skin stretching may provide a more consistent, closer shave.
  • the spacing between the fins allows room for the fins to deflect while managing the skin and hair, prior to contact with the elastomer guard bar.
  • the fins 20 increase in height relative to one another moving closer to blades 16, providing progressive skin contact and skin stretch.
  • Elastomeric guard bar 25 is shorter than the proceeding fin but taller than the guard bar support 26.
  • Guard bar support 26 is lower (shorter) than the blades 16 and is formed integrally with the housing 10.
  • fins 20b and 20c extend above the skin-contacting surface of guard bar support 26, and also above the plane defined by the edges of blades 16. This allows these fins to engage (stretch and straighten) the skin and hair during a shaving stroke.
  • the fins 20b and 20c extend above guard bar 25 at least 0.254 millimeters. In some cases, the fins extend at least 0.5 millimeters above the guard bar.
  • the first fin to contact the skin, fin 20a is lower than the guard bar. In some cases, fin 20a could be at least 0.254 millimeters lower than guard bar 25.
  • the fins are formed, for example, from synthetic or natural rubber materials.
  • the fins are integral with the guard, and thus are formed from the same material as the guard.
  • Suitable guard materials are well known in the shaving system art, and include, for example, polyether-based thermoplastic elastomers (TPEs) available from Kraiburg HTP, polyether-based thermoplastic vulcanizate elastomer (TPVs) available from Exxon Mobil Corporation under the tradename SantopreneTM.
  • TPEs polyether-based thermoplastic elastomers
  • TPVs polyether-based thermoplastic vulcanizate elastomer
  • Preferred elastomers have a durometer from 20 to 80 e.g., from 40 to 60 Shore A.
  • the guard may be attached to the cartridge housing 10 in any desired manner, e.g., by co-molding (e.g. transfer molding, multi-material molding or other similar techniques).
  • co-molding e.g. transfer molding, multi-material molding or other similar techniques.
  • Another embodiment could feature a plurality of fins configured in at least two or more sets of concentric arcs.
  • An alternate embodiment could feature a different number of curved fins.
  • the cartridge could feature at least 2 fins and up to or greater than 6 fins.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Details Of Cutting Devices (AREA)

Abstract

Razor cartridges are disclosed that include an elastomeric guard having a plurality of curved fins. Generally, this invention relates to razor cartridges with elastomeric guards. The guards have a plurality of curved fins. In some implementations, at least some of the fins are of substantially the same length, e.g., their chord lengths are within 10% of each other, e.g. within 5%. In one aspect, the invention features a razor cartridge comprising a housing, one or more blades disposed in the housing, and an elastomeric guard member disposed on the housing and positioned to contact the skin prior to the blades, the guard member comprising a plurality of fins that are arcs of concentric circles.

Description

Razor Cartridge Guards BACKGROUND
Razor cartridges customarily have elastomeric guards that are positioned to stretch and smooth the skin prior to the blades contacting the skin. In some cases these guards have a plurality of fins.
SUMMARY
Generally, this invention relates to razor cartridges with elastomeric guards. The guards have a plurality of curved fins. In some implementations, at least some of the fins are of substantially the same length, e.g., their chord lengths are within 10% of each other, e.g. within 5%.
In one aspect, the invention features a razor cartridge comprising a housing, one or more blades disposed in the housing, and an elastomeric guard member disposed on the housing and positioned to contact the skin prior to the blades, the guard member comprising a plurality of fins that are arcs of concentric circles.
Some implementations include one or more of the following features.
The guard member may include from 2 to 8 fins. At least two of the fins may have a length that is at least 19 mm. The height of at least some of the fins in relation to each other may increase with increasing proximity of the fins to the blades. The radii of curvature of the tips of the fins may be from about 0.025 to 1.12 mm. The fins may have arc lengths from about 19.05 to 50.8 millimeters.
The fin closest to the blades may be taller than the blades, and may function as an elastomeric guard bar. The housing comprises a guard bar support positioned against the elastomeric guard bar. The fins may be formed, for example, of an elastomer having a durometer of 20 to 80 Shore A. In some cases, distal ends of the fins are free to move, e.g., because they are not joined to the sides of the guard member or the housing
In another aspect, the invention features a razor cartridge comprising a housing, one or more blades disposed in the housing, and an elastomeric guard member disposed on the housing and positioned to contact the skin prior to the blades, the guard member comprising a plurality of curved fins, at least two of the fins having a length that is within 50 percent of each other.
Some implementations of this aspect of the invention may include any of the above features, and/or any one or more of the following features.
At least two of the fins, and in some cases all of the fins, may have a length that is within 20 percent of each other. The fins may have a width of from about 19 to 63.5 mm.
In another aspect, the invention features a razor cartridge comprising a housing, one or more blades disposed in the housing, and an elastomeric guard member disposed on the housing and positioned to contact the skin prior to the blades, the guard member comprising a plurality of curved fins extending from a common base, wherein at least two of the fins extend from the base to different heights.
Some implementations of this aspect of the invention may include any of the above features.
DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a razor cartridge.
FIG. 2 is a perspective view of the cartridge shown in FIG. 1 rotated 180°. FIG. 3 is a planar-top view of the cartridge.
FIG. 4 is sectional view of the cartridge taken along line 4 shown in FIG. 3. DETAILED DESCRIPTION
Referring to FIGs. 1 and 2, razor cartridge 5 includes a cartridge housing 10. A plurality of blades 16 are positioned within cartridge housing 10 substantially parallel to a long edge of the cartridge housing 10. An elastomeric guard 18 having a plurality of fins 20 is mounted on a long edge of the cartridge housing 10. The guard 18 also includes an integral guard bar 25. Guard bar support 26 is disposed between fins 20 and blades 16 on the housing. Moisturizing strip 12 is positioned behind the blades on the opposite long edge of the cartridge housing.
During use, the user draws the razor cartridge 5 across the skin so that the fins 20 contact the desired area to be shaved prior to guard bar 25. The skin and hair then contact the blades, followed by the moisturizing strip. As the user draws the shaving unit across the skin to be shaved, the fins 20 slightly stretch and smooth the skin and hair before contact with guard bar 25. Guard bar 25 prepares, i.e., straightens and stretches, the skin and hair prior to contact with the blades. Guard bar support 26 stabilizes guard bar 25 keeping guard bar 25 from deflecting or moving. The guard bar support is preferably constructed from a hard plastic to give it sufficient rigidity to provide this support.
Referring to FIG. 3, fins 20 are curved such that they are arcs of concentric circles. Each of the fins has a relatively large radius of curvature, relative to the length of the cartridge, such that the fins appear to be almost straight. In preferred
implementations, the difference between the radii of curvature of the fins along their length is relatively small or non-existent.
The edges of fins 20 are not connected to each other or to the cartridge housing 16, allowing the fins to flex at their edge. The fins extend substantially the entire length of the cartridge. The leading fin 20a, which contacts the skin first, is slightly longer than the other two fins 20b, 20c. Preferably, the arc lengths of the fins could be from about 19 to 51 millimeters, e.g., from about 28 to 48 millimeters. The radii of the tips of fins 20 are preferably relatively small, e.g., 0.05 millimeters. In some cases, the radii could be from 0.025 to 1.12 millimeters, for example from 0.02 to 0.07 millimeters. The distance between each fin is preferably about 1 millimeter but could be less, e.g., about 0.5 millimeters or more, e.g. about 1.5 millimeters.
The curved configuration of the fins causes them to non-uniformly collapse, which in combination with the free-flexing nature of the fins, provides differential skin stretching as the guard moves over the skin. The differential skin stretching may provide a more consistent, closer shave. Additionally, the spacing between the fins allows room for the fins to deflect while managing the skin and hair, prior to contact with the elastomer guard bar.
As seen in FIGs. 3 and 4, the fins 20 increase in height relative to one another moving closer to blades 16, providing progressive skin contact and skin stretch.
Elastomeric guard bar 25 is shorter than the proceeding fin but taller than the guard bar support 26. Guard bar support 26 is lower (shorter) than the blades 16 and is formed integrally with the housing 10. As shown in FIG. 4, fins 20b and 20c extend above the skin-contacting surface of guard bar support 26, and also above the plane defined by the edges of blades 16. This allows these fins to engage (stretch and straighten) the skin and hair during a shaving stroke. Preferably the fins 20b and 20c extend above guard bar 25 at least 0.254 millimeters. In some cases, the fins extend at least 0.5 millimeters above the guard bar. The first fin to contact the skin, fin 20a, is lower than the guard bar. In some cases, fin 20a could be at least 0.254 millimeters lower than guard bar 25.
Preferably, the fins are formed, for example, from synthetic or natural rubber materials. Generally, the fins are integral with the guard, and thus are formed from the same material as the guard. Suitable guard materials are well known in the shaving system art, and include, for example, polyether-based thermoplastic elastomers (TPEs) available from Kraiburg HTP, polyether-based thermoplastic vulcanizate elastomer (TPVs) available from Exxon Mobil Corporation under the tradename Santoprene™. Preferred elastomers have a durometer from 20 to 80 e.g., from 40 to 60 Shore A.
The guard may be attached to the cartridge housing 10 in any desired manner, e.g., by co-molding (e.g. transfer molding, multi-material molding or other similar techniques).
OTHER EMBODIMENTS
A number of embodiments have been described. Nevertheless, it will be understood that various modifications may be made without departing from the spirit and scope of the disclosure.
Another embodiment could feature a plurality of fins configured in at least two or more sets of concentric arcs.
An alternate embodiment could feature a different number of curved fins. For example, the cartridge could feature at least 2 fins and up to or greater than 6 fins.
Accordingly, other embodiments are within the scope of the following claims.

Claims

WHAT IS CLAIMED IS:
1. A device comprising:
a housing,
one or more blades disposed in the housing, and
an elastomeric guard member disposed on the housing and positioned to contact the skin prior to the blades, the guard member comprising a plurality of fins that are arcs of concentric circles.
2. The device of claim 1, wherein the guard member comprises from 2 to 8 fins.
3. The device of claim 1, wherein at least two of the fins have a length that is at least 19 mm.
4. The device of claim 1 , wherein the height of at least some of the fins in relation to each other increases with increasing proximity of the fins to the blades.
5. The device of claim 1, wherein distal ends of the fins are free to move.
6. The device of claim 1, wherein the elastomeric guard member further comprises an elastomeric guard bar which is adjacent to the blades and taller than the blades.
7. The device of claim 1, wherein the fins are formed of an elastomer having a durometer of 20 to 80 Shore A.
8. The device of claim 1, wherein the radii of curvature of the tips of the fins is from 0.025 to 1.12 mm.
9. The device of claim 1, wherein the fins have arc lengths from 19.05 to 50.8 millimeters.
10. The device of claim 6, wherein the housing comprises a guard bar support positioned against the elastomeric guard bar.
11. A device comprising:
a housing,
one or more blades disposed in the housing, and
an elastomeric guard member disposed on the housing and positioned to contact the skin prior to the blades, the guard member comprising a plurality of curved fins, at least two of the fins having a length that is within 50 percent of each other.
12. The device of claim 12, wherein the guard member comprises from 2 to 8 curved fins.
13. The device of claim 12, wherein all of the fins have a length that is within 20 percent of each other.
14. The device of claim 12, wherein the height of at least some of the fins increases with increasing proximity of the fin to the blades.
15. The device of claim 12, wherein the distal ends of the fins are free to move.
16. The device of claim 12, wherein the elastomeric guard member further comprises an elastomeric guard bar which is adjacent to the blades and taller than the blades.
17. The device of claim 12, wherein the fins are formed of an elastomer having a durometer of 20 to 80 Shore A.
18. The device of claim 12, wherein the width of the fins is from 19 to 63.5 mm.
19. The device of claim 12, wherein the fins have the radii of curvature of the tips of the fins is from 0.025 to 1.12 mm.
20. The device of claim 17, wherein the housing comprises a guard bar support positioned adjacent the elastomeric guard bar.
21. The device of claim 12, wherein at least two of the fins have a length that is within 20 percent of each other.
22. The device of claim 12, wherein all of the fins have lengths within 50 percent of each other.
23. A device comprising:
a housing,
one or more blades disposed in the housing, and
an elastomeric guard member disposed on the housing and positioned to contact the skin prior to the blades, the guard member comprising a plurality of curved fins extending from a common base, wherein at least two of the fins extend from the base to different heights.
PCT/US2015/027103 2014-04-24 2015-04-22 Razor cartridge guards Ceased WO2015164509A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP15783488.8A EP3134235B1 (en) 2014-04-24 2015-04-22 Razor cartridge guards
BR112016024696-9A BR112016024696B1 (en) 2014-04-24 2015-04-22 shaving cartridge
KR1020167032809A KR102480097B1 (en) 2014-04-24 2015-04-22 Razor cartridge guards
CN201590000465.5U CN206510078U (en) 2014-04-24 2015-04-22 razor box
US15/331,058 US10967531B2 (en) 2014-04-24 2016-10-21 Razor cartridge guards

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201461983790P 2014-04-24 2014-04-24
US61/983,790 2014-04-24

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/331,058 Continuation US10967531B2 (en) 2014-04-24 2016-10-21 Razor cartridge guards

Publications (1)

Publication Number Publication Date
WO2015164509A1 true WO2015164509A1 (en) 2015-10-29

Family

ID=54333139

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2015/027103 Ceased WO2015164509A1 (en) 2014-04-24 2015-04-22 Razor cartridge guards

Country Status (6)

Country Link
US (1) US10967531B2 (en)
EP (1) EP3134235B1 (en)
KR (1) KR102480097B1 (en)
CN (1) CN206510078U (en)
BR (1) BR112016024696B1 (en)
WO (1) WO2015164509A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3835013A1 (en) * 2019-12-10 2021-06-16 Dorco Co., Ltd. Razor cartridge

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2853362B1 (en) * 2013-09-25 2016-08-10 BIC Violex S.A. A shaving blade cartridge
WO2015090385A1 (en) 2013-12-18 2015-06-25 Bic-Violex Sa A shaving blade cartridge
KR102092560B1 (en) 2016-11-04 2020-03-25 주식회사 케이티 Methods of Random Access Procedure based on multi-beam in wireless networks and Apparatuses thereof
ZAA201801245S (en) * 2018-02-24 2019-05-29 Super Max Personal Care Pvt Ltd Cap for cartridge of safety razor
ZAA201801244S (en) * 2018-02-24 2019-05-29 Super Max Personal Care Pvt Ltd Cartridge base for safety razor
ZAA201801243S (en) * 2018-02-24 2019-05-29 Super Max Personal Care Pvt Ltd Cartridge for safety razor
USD892406S1 (en) * 2018-06-14 2020-08-04 Wenzhou Mers Razor Works Co., Ltd. Razor head
US20250249613A1 (en) * 2024-02-06 2025-08-07 Sl Shaveco Llc Razor cartridges
USD1108711S1 (en) 2024-02-15 2026-01-06 Nfs Capital, Llc Razor cartridge

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040134072A1 (en) * 2000-02-29 2004-07-15 The Gillette Company, A Delaware Corporation Shaving razor and blade unit with improved guard
US20060070240A1 (en) * 2004-10-05 2006-04-06 Eveready Battery Company, Inc. Shaving implement
US20080034590A1 (en) * 2004-02-26 2008-02-14 The Gillette Company Shaving blade unit
WO2012158141A1 (en) * 2011-05-13 2012-11-22 Eveready Battery Company, Inc Razor Blade Supports

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2064884A (en) * 1934-11-27 1936-12-22 Concetta L Blue Safety razor
US2200185A (en) * 1936-03-12 1940-05-07 Gillette Safety Razor Co Shaving implement
US5191712A (en) * 1988-10-28 1993-03-09 The Gillette Company Safety razors and guards
US6298557B1 (en) * 1996-03-11 2001-10-09 The Gillette Company Safety razors
US5794343A (en) * 1997-05-12 1998-08-18 The Gillette Company Razor blade assembly
DE69806026T2 (en) * 1997-09-18 2002-10-31 The Gillette Co., Boston SAFETY SHAVER
US6651342B1 (en) * 2000-02-29 2003-11-25 The Gillette Company Shaving razor and blade unit with improved guard
KR100749925B1 (en) * 2006-06-29 2007-08-16 주식회사 도루코 Shaver
US8186062B2 (en) * 2007-03-19 2012-05-29 Eveready Battery Company, Inc. Safety razor with filament guard
RU2479416C2 (en) * 2008-09-29 2013-04-20 Дзе Жиллетт Компани Shaving sets and shaving set cartridges with reduced total distance between blades
KR101078179B1 (en) * 2008-12-11 2011-11-07 주식회사 도루코 Razor cartridge and the razor using the same
KR101055684B1 (en) * 2009-02-11 2011-08-09 주식회사 도루코 Integrated razor blades and razor cartridges using the same
KR20110024234A (en) * 2009-09-01 2011-03-09 주식회사 도루코 Shaver cartridges
WO2013062757A1 (en) * 2011-10-25 2013-05-02 Eveready Battery Company, Inc Razor cartridge with improved guard
KR101674460B1 (en) * 2014-08-25 2016-11-09 주식회사 도루코 Razor cartridge and razor using the same
WO2016032014A1 (en) * 2014-08-25 2016-03-03 주식회사 도루코 Razor blade and razor cartridge using same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040134072A1 (en) * 2000-02-29 2004-07-15 The Gillette Company, A Delaware Corporation Shaving razor and blade unit with improved guard
US20080034590A1 (en) * 2004-02-26 2008-02-14 The Gillette Company Shaving blade unit
US20060070240A1 (en) * 2004-10-05 2006-04-06 Eveready Battery Company, Inc. Shaving implement
WO2012158141A1 (en) * 2011-05-13 2012-11-22 Eveready Battery Company, Inc Razor Blade Supports

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3134235A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3835013A1 (en) * 2019-12-10 2021-06-16 Dorco Co., Ltd. Razor cartridge
US12162173B2 (en) 2019-12-10 2024-12-10 Dorco Co., Ltd. Razor cartridge

Also Published As

Publication number Publication date
BR112016024696B1 (en) 2021-01-05
CN206510078U (en) 2017-09-22
EP3134235A4 (en) 2018-01-03
KR20160146950A (en) 2016-12-21
EP3134235A1 (en) 2017-03-01
BR112016024696A2 (en) 2017-08-15
US20170043491A1 (en) 2017-02-16
US10967531B2 (en) 2021-04-06
EP3134235B1 (en) 2020-03-25
KR102480097B1 (en) 2022-12-21

Similar Documents

Publication Publication Date Title
EP3134235B1 (en) Razor cartridge guards
AU2023203465B2 (en) Bidirectional shaving device
AU2008291730B2 (en) Safety razor with improved guard
US20230150158A1 (en) Shaving razor cartridge
EP2440376B1 (en) Blade cartridge with finned guard
US11345055B2 (en) Razor cartridge structure
EP3166761B1 (en) Razor cartridges
EP4177019A1 (en) Shaving razor cartridge
US8931176B2 (en) Blade cartridge guard comprising an array of flexible fins extending in multiple directions
JP2014534025A (en) Razor cartridge with improved guard
JP2018501859A (en) Razor cartridge guard structure
JP2017536930A (en) Razor cartridge guard structure
US20190329433A1 (en) Shaving blade cartridge and a shaver comprising such shaving blade cartridge
US10369712B2 (en) Shaving blade cartridge and a shaver comprising such shaving blade cartridge
US12491649B2 (en) Shaving head with increased inter blade span

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15783488

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2015783488

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2015783488

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112016024696

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 20167032809

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 112016024696

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20161021