US1868113A - Fan - Google Patents

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Publication number
US1868113A
US1868113A US540931A US54093131A US1868113A US 1868113 A US1868113 A US 1868113A US 540931 A US540931 A US 540931A US 54093131 A US54093131 A US 54093131A US 1868113 A US1868113 A US 1868113A
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US
United States
Prior art keywords
fan
hub
blade
strip
places
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.)
Expired - Lifetime
Application number
US540931A
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English (en)
Inventor
Ljungstrom Fredrik
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.)
SPONTAN AB
Original Assignee
SPONTAN AB
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 SPONTAN AB filed Critical SPONTAN AB
Application granted granted Critical
Publication of US1868113A publication Critical patent/US1868113A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/382—Flexible blades

Definitions

  • My invention relates to fans and more particularly to the type of fan or difl'usor .Which is used in a room, such as a room of a home-or an 'ofiice, for producing a movement of air for cooling purposes, which type of fan may be referred to as domestic.
  • my improved fan is not limited todomestic use, but is also applicable to commercial uses.
  • the average electric fan of the domestic type comprises stifi metal blades. Invariably these fans are surrounded by a guard for the reason that an unprotected fan is a source of danger. It is.one object of my invention to do away with a guard for a fan.
  • a further'object of my invention is to provide a portable fan. which requires the minimum of space and which can be folded up for carrying purposes to small size.
  • vanes made of ribbons or strips of cloth. chamois skin, canvas, duck or other fiexiblc and limp or non-elastic material. These ribbons are attached to a hub ataxially disposed points and are loose or slack between their places of attachment to pro-. vide loop'blades adapted to be thrown out by centrifugal force in a manner analogous to that of a jump rope as used by children. In general, it may be said that this causes the ribbons or vanes or blades to take on a 56 shape which maybe appropriately called a similar length held by a child at play, it will centrifugal catenary. Assume a chain or rope secured at its ends at spaced points on a rotating shaft.
  • the curve of the rope or chain is determined essentially by the resultant of the centrifugal force and the ten- 55 sile forces within the rope or chain. If a number of chains or ropes are so arranged and side by side with respect to each other so as to simulate a number of jump ropes of 'propriate to say that such a strip takes on a shape defined by the term centrifugal catenarv.
  • Fig. 1 is a front view of. arm in accordance with the invention.
  • Fig 2 is a side view-taken on the line 22
  • Fig. 3 shows one manner offastening together the ends of the ribbon forming the blade
  • Fig. 9 shows a fan embodying the invention applied to the cooling of the radiator of an automobile.
  • reference character 10 d i cylindrical hub having an apprecia 1e axial extent.
  • Hub 10 is mounted on a shaft 11, which ma be rotated by any suitable-prime mover.i ecured to the hub 10 are a plu'-. rality of vanes or blades 12.
  • These .blades are made of strips or ribbons of limp or non-elastic flexible material, the weight and strength of which may vary with diflerent sizes of fans.
  • the material. is relatively stron and sturdy such as heavy cloth or it may he made of what'is known as canvas or duck.' As shown, the strips used are parallel edged, but this'not' a. prime requisite.
  • the slots at 13 and- 14 need not be exactly parallel. but the slot at 13 may be slightly -more inclined to the. axis q than the slot at 14, to take care of the in crease invelocity .of the air stream after leaving what may be terrhed the forward blade section at-14 and approaching the after bladesection at 13.
  • Strips 12 are secured to the hub 10 at spaced u When the fan is at rest the blades are limp, being made of soft material, such, for exam le, as herringbone-woven coarse, cloth,
  • the symmetrical position is shown in a dotted l ne 9
  • the actual position deviates tent o displacement is not great and may vary somewhat in accordance with the kind of material used for the ribbon blades.
  • the axial displacement of the points of attach-- -ment causes. the blade structure to become relatively ri 'd. It will be seen that if a were used, as in an ordinary fan blade made ofsoft material, it would be bent backwards. '.by' the reactionary force of the and would not have stability.
  • the arched" construction obtained by the axial'displace-. ment of the points of attachment of the ribair pressure bon provides-a support for the fan blade.
  • arched portions are at least three times as long as the distance between the slots. This proportion may be varied and difierent characteristics may be obtained by varying the 'free length of ribbon with respect to the distance between slots. If desired, the cloth ribbon may be suitably edged.
  • fan blade may strike an object and'yet there is no danger of injuryto materials since the fan blade, being made of soft material, can be deflected.
  • a fan of this type can be made with muchgreater diameter'than an ordinary from this dotted line 9.
  • a complete portable or domestic electric fan em- In Figs. 4 to 7 inclusive, is shown a complete portable or domestic electric fan em-.
  • This .fan comprises a base 20. Pivotally secured to the base 20 is v an upwardly extending arm 22, to the upper end of which is secured on electric motor 23.
  • Moto 23- is provided with'an armature shaft 24 towhich is secureda hollow hub 25.
  • Hub 25 is of such dimensions and so formed as to substantially enclose motor 23..
  • Hub'2'5 is lac provided witha bushing 26 secured thereto by means of screws 27, .which bushing is in turn secured to shaft 24 by'means of a set screw 28, which may be made accessible from outside the hub through a hole 29.
  • Hub 25 is preferably'ma'de of a phenol condensationcase, the vanes are secured to the hub by being folded over and sewed at the ends 50.
  • the slots 30 are shown as arcuate, but it will be understood that they may be straight.
  • the slots are axially and circumferentially spaced and extend obliquely with respect to the aix's of the hub. It will be understood that-axial displacement is more important than peripheral displacement. and though peripheral displacement is preferable, it is not necessary;- ach slot terminates in a circular hole 31, which makes it possible to insert or remove a vane without removing the hub from the motor and for the purposepf facilitating replacement. It may be advisable in certain cases to use glue or other material for more firmly holding the vanes in the slots. Instead of sewing over the ends, it is also possible to provide other securing means as by bending over the ends of the ribbons and fastening them to the hub or using metal fasteners having teeth.
  • the base 20 is provided with an opening 5 37 through which passes an electric cord 38 comprising two conductors.
  • One of the conductors passes directly to a passageway 39 "within arm 22 to one terminal of motor 23.- The other conductor is led to a terminal of a.
  • Rheostat 21 within base 22.
  • the other terminal of the rheostat 21 is connected to the mo-' tor 23 by a second conductor passing through arm 22.
  • Rheostat 21 may be of any desired type and ishere shown as being provided' with three contact points 44.
  • Journalled in base 20 is avertical pin 40 to the upper end of which is secured a handle 41 and to the lower end of which is a spring contact member 42.
  • Handle 41 is ada ted to be rotated.
  • the invention may be embodied in a fan which does not use a rheostat.
  • the bottom of base 20 is closed by means of a plate.45 which-may be secured to the base by screws 46.
  • a ring 47 of rubber or the like which rests upon the surface, such as-a table, whichsupport the fan.
  • the windings may be designed to give -a fan action and holes as at 65 and 66 may be provided for allowing passage of air.
  • a separate fan element may be used for cooling the motor or the hub 25 may be so made as to produce 'air circulation, as with integral oblique vanes inside the openings in the cone-shaped head.
  • the arm 22 is formed with a rounded bottom portion 67 which seats in a, correspondingly curved recess 68 in an upper extenslon of the base member 20.
  • a spring 69 pivoted to the base member and to a pin 70 in the arm 22 serves to pull arm 22 downwardly into the opening 68. Friction of the parts holds arm 22 in any position in which it is placed by hand.
  • the joint formed by the part 67 and the journalled surface68 is preferably such that themotor may be folded downwardly close to the base member. Since the fan has no guardmember, it will be seen that this provides a unit which can be readily carried and packed for traveling purposes.
  • Fig. 8 I have shown a fan in which th I hub is made up of two axially displaced wheels 52 and 53.
  • Theblades in this case are secured to the wheelsby U-shaped metal pieces 54 secured to the wheels.
  • the ribbons are threaded through the members 54 and are riveted or sewed at 55.
  • the vane 12 may be of, leather or material similar to that previously described. It will be seen that my invention is also-applicable to fans of the w rotated What Iclaimiszi.
  • a :blade comprising of pliablmmaterial mountedv .at IODgItIIdI- nally remote places of said strip on said memte being of substantially the tween the places. of mounting,
  • Fig. 9 I have shown my new fan adapted to the cooling of an automobile radiator 55..'
  • the fan blades 120i non-elastic flexible material are mounted in an extended hub 56.-
  • L- A fan comprising a retatable member and "a blade comprising 'a strip of pliable material'mounted on said mem er. in slack; condition between spaced places thereon, said stri being bowed outwardly from said member etween saidspacedplaoes due to centrifbeing force on rotation .of said member andmounted so that 'portions thereof provide axially spaced air propelling surfaces, *2.
  • 'A fan comprising. a rotatab e an elongated strip her in slack conditionbetween-spaced places of said member, theside edges of said strip same length be-.
  • a fan comprising a; rotatableinching of pliable material mounted at longitudin X remote placesof said strip on said me lnberfin v slack condition between spaced places of said member,- the side edges of .said'strip being ea'ch several times as long-as the direct dis-
  • the arrangements herein described I tially member tanoe between the places of mountin part of'said strip being constrained by sai memberto have substantially fixed position angurlarly to tlf'e' peripheral path of travel of such part, and said strip being free between the places of mounting, to assume centrlfugalcatenary form and'providing air propelling surfaceon rotation of said member.
  • a fan comprising a rotatable member. and a blade comprising an elongatedstrip of pliable material mounted at longitudinally remote places of said strip onsaid member in slack condition between'spaced places of said member, the side edges of said. strip being each substantially longer than the.
  • a fan comprlsmg a rotatable member and a blade comprising a relatively narrow strip of limp or non-elastic and flexible mate-- rial secured to said member inslack condition between spaced places thereon and part of said strip being constrained by said member to have substantially fixed position angularly to-theperipheral'path of travel of such part.
  • a fan comprising a rotatable member and a bladecomprising a stri material mounted-on said mem r in slack condition between spaced places thereof, said strip being thrown outwardly like a jump rope from. said member on rotation of said member and part of said strip being) con-' strained by said member to have .su stan-' fixed position angularly to the'p'eriph eral path of travel of such part.
  • a fan comprising a rotatable member. and a loop blade of ribbon-like pliable material, the end portions of the loop being secured to said member at spaced places thereon with the matgrial in slack condition and at least one offlsaid end portions joining the "tation of saidm'ember.
  • a fan comprising and a loop blade comprising a strip of fabric
  • 'A an comprising a'rotatable member to'said member at spacedplaces thereon with e and a blade comprising a ribbon-likestrip of pliable material securedv to said member at axially'spaced' places thereon-and obliquely tothe axis of rotation of said" member, said strip being extensible outwardly from said member between said spaced places.
  • a fan comprising a hub, means for rotatingsaid hub, and a blade comprising an elongated strip of pliable material having places thereof relatively far apart in stretched "condition secured in slack condition between substantially closer spaced places of said hub, the strip being obliquely disposed with respect to the axis of the hub adjacent to one of the places of attachment thereto, said blade being free to assume substantially the form of a centrifugal catenary curve on rotation of the hub.
  • a fan comprisin a hub, means-for rotating said hub, and ablade, said blade comprising an elongated strip of relatively soft mg a perlpheral surface formed with a pair flexible material having places thereof rela tively far apart in stretched condition secured to said hub in slack condition between substantially closer axially spaced places of said hub and free to be thrown outwardly and to derive its operating contour due to centrifugal force upon rotation of said hub.
  • a fan comprising a hub, means for rotating said hub, and a blade, said blade comprising an elongated strip of relatively soft flexible material secured to said hub at axially and peripherally spacedplaces and adapted to derive its operating contour due to centrifugal force upon rotation of said hub and providin air-screw surface, said strip bein limp w en at rest.
  • a fan comprising a hub, means for rotating said hub, and a blade, said blade rality comprising a strip of relatively soft flexible material having places thereof relatively far apart in stretched condition secured at a pluof more closely spaced places on said hub and adapted to derive an operating contour due to centrifugal force of substantially centrifugal catenary form upon rotation of said hub, said strip being angularly disposed with respect to the axis of the hub and its peripheral path of travel at one of the places of attachment thereto and being limp when 7. at rest.
  • a strip of relatively-soft flexible material having places thereof relatively far apart in stretched condition secured at a plurality of more closely spacedaxially disposed places on said hub and adapted to derive an operating contour due to centrifugal force of substantially centrifugal catenary form upon rotation of said hub, said strip being joined to the hub oblique to the ads of the hub and oblique to its peripheral path of travel and being limp when at rest.
  • a fan comprising a rotatable member and a loop blade for displacement of air axially of said member upon rotation thereof, said blade comprising a ribbon-like strip of fabric and the ends of the-blade being secured at axially spaced places on said member and arranged obliquely with respect to the axis of rotation of said member.
  • a fan comprising a rotatable member and a loop blade for displacement of air axially of said member upon rotation thereof, said blade comprising a ribbon-like strip of relatively soft pliable material, the ends of said blade being secured to said member at axially spaced places and joining said member along curved lines generally oblique to the axis of rotation of said member.
  • a fan comprising a rotatable hub, said hub being formed with a .pair of axially spaced slots on the periphery thereof extending) obliquely to the axis of rotation of the hu and; a ribbon-like strip comprising pliable fabric providing a loop blade having ends secured in said slots.
  • a fan comprising ahollow rotatable hub, said hub being formed with a pair of spaced slots extending through the peripheral wall of the hub, at least one of said slots being dis osed at an angle with respect to the axis 0 rotation of the hub, and a ribbon-likestrip of pliable material providing a loop blade having ends as'singlthrough said slots to the interior 0 said ub, said ends being enlarged 'within the hub to prevent them from being withdrawn through said slots due to centrifugal force acting on said strip.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US540931A 1930-09-22 1931-05-29 Fan Expired - Lifetime US1868113A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1868113X 1930-09-22

Publications (1)

Publication Number Publication Date
US1868113A true US1868113A (en) 1932-07-19

Family

ID=20423828

Family Applications (1)

Application Number Title Priority Date Filing Date
US540931A Expired - Lifetime US1868113A (en) 1930-09-22 1931-05-29 Fan

Country Status (5)

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US (1) US1868113A (de)
AT (1) AT135580B (de)
CH (1) CH161641A (de)
FR (1) FR724382A (de)
GB (1) GB368204A (de)

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491026A (en) * 1946-06-01 1949-12-13 John H Beckert Air circulating fan
US2791373A (en) * 1956-03-16 1957-05-07 John D Wilcox Safety guard for electric fans
US3197129A (en) * 1962-07-23 1965-07-27 Knapp Monarch Co Electric fan construction
US3990808A (en) * 1975-11-24 1976-11-09 Boris Isaacson Inflatable blower
US4095918A (en) * 1975-10-15 1978-06-20 Mouton Jr William J Turbine wheel with catenary blades
US4547126A (en) * 1983-12-08 1985-10-15 Jackson Samuel G Fan impeller with flexible blades
USD282871S (en) 1982-07-16 1986-03-04 Caframo Limited Fan
WO1991004418A1 (en) * 1989-09-20 1991-04-04 Jacob Van De Laar Construction for the displacement of fluids
US5110261A (en) * 1990-07-05 1992-05-05 Hunter Fan Company Fan blade
USD336513S (en) 1990-10-10 1993-06-15 Hunter Fan Company Ceiling fan blade
USD354979S (en) 1993-04-16 1995-01-31 Sanrio Company, Ltd. Combined ball-point pen and fan
US5584656A (en) * 1995-06-28 1996-12-17 The Scott Fetzer Company Flexible impeller for a vacuum cleaner
US5642986A (en) * 1995-06-28 1997-07-01 The Scott Fetzer Company Flexible impeller with one-piece hub
US20040067138A1 (en) * 2001-01-26 2004-04-08 Minoru Yoshida Fluid machinery
US6948910B2 (en) 2002-07-12 2005-09-27 Polacsek Ronald R Spiral-based axial flow devices
USD515694S1 (en) 2005-01-07 2006-02-21 Fanimation, Inc. Fan blade
USD516198S1 (en) 2005-01-07 2006-02-28 Fanimation, Inc. Fan assembly
US20070092376A1 (en) * 2005-10-26 2007-04-26 Malone Christopher G Electronics cooling fan with collapsible fan blade
US20080075599A1 (en) * 2006-05-10 2008-03-27 Fallbrook Technologies Inc. Fluid energy converter
US7648339B1 (en) 2004-08-30 2010-01-19 Vornado Air Circulation Systems, Inc. Fabric fan blades
USD630724S1 (en) * 2010-06-20 2011-01-11 Pan Air Electric Co., Ltd. Ceiling fan blade
US20120087812A1 (en) * 2010-10-06 2012-04-12 Jeffrey Alan Greenberg Folding Personal Fan
US20150037157A1 (en) * 2013-07-31 2015-02-05 ESDA Research and Development Incorporated Composite propeller blade structure
AT515865A1 (de) * 2014-06-11 2015-12-15 Thomas Dipl Ing Euler-Rolle Axiallüfter
WO2017205680A1 (en) * 2016-05-27 2017-11-30 Sharrow Engineering Llc Propeller
US9909590B1 (en) * 2013-03-15 2018-03-06 The L.D. Kichler Co. Compact ceiling fans
US9926058B2 (en) 2012-12-10 2018-03-27 Sharrow Engineering Llc Propeller
EP3431387A1 (de) * 2012-12-10 2019-01-23 Sharrow Engineering LLC Propeller
EP3492164A1 (de) * 2017-11-27 2019-06-05 BSH Hausgeräte GmbH Mixer-messer
USD895097S1 (en) * 2018-05-25 2020-09-01 Eileen Grays LLC Ceiling fixture
CN112567127A (zh) * 2018-06-06 2021-03-26 M·邦德斯塔姆 转子
RU2780771C1 (ru) * 2022-03-15 2022-09-30 федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный авиационный технический университет" Петлевидный гребной винт
CN116950925A (zh) * 2023-07-04 2023-10-27 广东宏伙控股集团有限公司 一种高强度中空风叶及使用其的风扇
USD1013605S1 (en) 2017-05-25 2024-02-06 Sharrow Engineering Llc Propeller
USD1019928S1 (en) * 2021-03-23 2024-03-26 Hoteck Inc. Ceiling fan blade
USD1029041S1 (en) 2021-04-21 2024-05-28 Sharrow Engineering Llc Duo-propeller
USD1052069S1 (en) * 2024-04-02 2024-11-19 Wenbo Wei Ceiling fan
US12173719B1 (en) * 2024-02-07 2024-12-24 Chao Chin Yao Ceiling fan structure
US12397889B2 (en) 2021-04-21 2025-08-26 Sharrow Engineering Llc Duo-propellers and single propellers
US12448098B2 (en) 2016-05-27 2025-10-21 Sharrow Engineering Llc Propeller
USD1111158S1 (en) * 2024-10-25 2026-02-03 Air Cool Industrial Co., Ltd. Ceiling fan

Cited By (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491026A (en) * 1946-06-01 1949-12-13 John H Beckert Air circulating fan
US2791373A (en) * 1956-03-16 1957-05-07 John D Wilcox Safety guard for electric fans
US3197129A (en) * 1962-07-23 1965-07-27 Knapp Monarch Co Electric fan construction
US4095918A (en) * 1975-10-15 1978-06-20 Mouton Jr William J Turbine wheel with catenary blades
US3990808A (en) * 1975-11-24 1976-11-09 Boris Isaacson Inflatable blower
US4083652A (en) * 1975-11-24 1978-04-11 Boris Isaacson Inflatable air-driven motor
USD282871S (en) 1982-07-16 1986-03-04 Caframo Limited Fan
US4547126A (en) * 1983-12-08 1985-10-15 Jackson Samuel G Fan impeller with flexible blades
WO1991004418A1 (en) * 1989-09-20 1991-04-04 Jacob Van De Laar Construction for the displacement of fluids
US5110261A (en) * 1990-07-05 1992-05-05 Hunter Fan Company Fan blade
USD336513S (en) 1990-10-10 1993-06-15 Hunter Fan Company Ceiling fan blade
USD354979S (en) 1993-04-16 1995-01-31 Sanrio Company, Ltd. Combined ball-point pen and fan
US5584656A (en) * 1995-06-28 1996-12-17 The Scott Fetzer Company Flexible impeller for a vacuum cleaner
US5642986A (en) * 1995-06-28 1997-07-01 The Scott Fetzer Company Flexible impeller with one-piece hub
US5655884A (en) * 1995-06-28 1997-08-12 The Scott Fetzer Company Flexible impeller with overmolded hub
US5626461A (en) * 1995-06-28 1997-05-06 The Scott Fetzer Company Stranded impeller
EP1365106A4 (de) * 2001-01-26 2006-07-19 Y & Y Co Ltd Strömungsmaschine
US20040067138A1 (en) * 2001-01-26 2004-04-08 Minoru Yoshida Fluid machinery
US7018167B2 (en) * 2001-01-26 2006-03-28 Y & Y Co., Ltd. Fluid machinery
US6948910B2 (en) 2002-07-12 2005-09-27 Polacsek Ronald R Spiral-based axial flow devices
US7648339B1 (en) 2004-08-30 2010-01-19 Vornado Air Circulation Systems, Inc. Fabric fan blades
USD516198S1 (en) 2005-01-07 2006-02-28 Fanimation, Inc. Fan assembly
USD515694S1 (en) 2005-01-07 2006-02-21 Fanimation, Inc. Fan blade
US20070092376A1 (en) * 2005-10-26 2007-04-26 Malone Christopher G Electronics cooling fan with collapsible fan blade
US7354246B2 (en) * 2005-10-26 2008-04-08 Hewlett-Packard Development Company, L.P. Electronics cooling fan with collapsible fan blade
US20080075599A1 (en) * 2006-05-10 2008-03-27 Fallbrook Technologies Inc. Fluid energy converter
USD630724S1 (en) * 2010-06-20 2011-01-11 Pan Air Electric Co., Ltd. Ceiling fan blade
US8894377B2 (en) * 2010-10-06 2014-11-25 Jeffrey Alan Greenberg Folding personal fan
US20120087812A1 (en) * 2010-10-06 2012-04-12 Jeffrey Alan Greenberg Folding Personal Fan
US11273892B2 (en) 2012-12-10 2022-03-15 Sharrow Engineering Llc Propeller
US9926058B2 (en) 2012-12-10 2018-03-27 Sharrow Engineering Llc Propeller
EP3431387A1 (de) * 2012-12-10 2019-01-23 Sharrow Engineering LLC Propeller
US11603184B2 (en) * 2012-12-10 2023-03-14 Sharrow Engineering Llc Propeller
US9909590B1 (en) * 2013-03-15 2018-03-06 The L.D. Kichler Co. Compact ceiling fans
US20150037157A1 (en) * 2013-07-31 2015-02-05 ESDA Research and Development Incorporated Composite propeller blade structure
AT515865A1 (de) * 2014-06-11 2015-12-15 Thomas Dipl Ing Euler-Rolle Axiallüfter
US12448098B2 (en) 2016-05-27 2025-10-21 Sharrow Engineering Llc Propeller
AU2017268808C1 (en) * 2016-05-27 2020-02-13 Sharrow Engineering Llc Propeller
JP2022046682A (ja) * 2016-05-27 2022-03-23 シャロウ エンジニアリング リミティド ライアビリティ カンパニー プロペラ
RU2742113C2 (ru) * 2016-05-27 2021-02-02 ШЭРРОУ ИНДЖИНИРИНГ ЭлЭлСи Лопастный винт
AU2019203301B2 (en) * 2016-05-27 2021-03-04 Sharrow Engineering Llc Propeller
JP7315647B2 (ja) 2016-05-27 2023-07-26 シャロウ エンジニアリング リミティド ライアビリティ カンパニー プロペラ
AU2017268808B2 (en) * 2016-05-27 2019-02-14 Sharrow Engineering Llc Propeller
WO2017205680A1 (en) * 2016-05-27 2017-11-30 Sharrow Engineering Llc Propeller
USD1013605S1 (en) 2017-05-25 2024-02-06 Sharrow Engineering Llc Propeller
EP3492164A1 (de) * 2017-11-27 2019-06-05 BSH Hausgeräte GmbH Mixer-messer
USD895097S1 (en) * 2018-05-25 2020-09-01 Eileen Grays LLC Ceiling fixture
EP3803099A4 (de) * 2018-06-06 2022-03-02 Bondestam, Marten Rotor
CN112567127A (zh) * 2018-06-06 2021-03-26 M·邦德斯塔姆 转子
USD1019928S1 (en) * 2021-03-23 2024-03-26 Hoteck Inc. Ceiling fan blade
USD1084031S1 (en) 2021-04-21 2025-07-15 Sharrow Engineering Llc Duo-propeller
USD1029041S1 (en) 2021-04-21 2024-05-28 Sharrow Engineering Llc Duo-propeller
US12397889B2 (en) 2021-04-21 2025-08-26 Sharrow Engineering Llc Duo-propellers and single propellers
RU2780771C1 (ru) * 2022-03-15 2022-09-30 федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный авиационный технический университет" Петлевидный гребной винт
CN116950925A (zh) * 2023-07-04 2023-10-27 广东宏伙控股集团有限公司 一种高强度中空风叶及使用其的风扇
US12173719B1 (en) * 2024-02-07 2024-12-24 Chao Chin Yao Ceiling fan structure
USD1052069S1 (en) * 2024-04-02 2024-11-19 Wenbo Wei Ceiling fan
USD1111158S1 (en) * 2024-10-25 2026-02-03 Air Cool Industrial Co., Ltd. Ceiling fan

Also Published As

Publication number Publication date
FR724382A (fr) 1932-04-26
AT135580B (de) 1933-11-25
GB368204A (en) 1932-03-03
CH161641A (de) 1933-05-15

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