EP2123409A1 - Unité de lame de rasoir dotée d'un stockage d'arête coupante - Google Patents

Unité de lame de rasoir dotée d'un stockage d'arête coupante Download PDF

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Publication number
EP2123409A1
EP2123409A1 EP08104068A EP08104068A EP2123409A1 EP 2123409 A1 EP2123409 A1 EP 2123409A1 EP 08104068 A EP08104068 A EP 08104068A EP 08104068 A EP08104068 A EP 08104068A EP 2123409 A1 EP2123409 A1 EP 2123409A1
Authority
EP
European Patent Office
Prior art keywords
blade
blades
unit according
razor blade
housing
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.)
Granted
Application number
EP08104068A
Other languages
German (de)
English (en)
Other versions
EP2123409B1 (fr
Inventor
Uwe Denkert
Kai-Uwe Rüde
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.)
Feintechnik GmbH Eisfeld
Original Assignee
Feintechnik GmbH Eisfeld
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 Feintechnik GmbH Eisfeld filed Critical Feintechnik GmbH Eisfeld
Priority to EP08104068A priority Critical patent/EP2123409B1/fr
Priority to AT08104068T priority patent/ATE547213T1/de
Priority to ES08104068T priority patent/ES2383167T3/es
Priority to US12/470,572 priority patent/US8146255B2/en
Publication of EP2123409A1 publication Critical patent/EP2123409A1/fr
Application granted granted Critical
Publication of EP2123409B1 publication Critical patent/EP2123409B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B26B21/08—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
    • B26B21/227—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 with blades being resiliently mounted in the changeable unit

Definitions

  • the invention relates to a razor blade unit for a razor according to the preamble of claim 1.
  • Conventional razor blade units for wet shaving usually consist of two frame parts, wherein on one frame part of the sliding strip and on the other frame part the foam edge is arranged.
  • the blades were riveted into the frame.
  • a rivet attachment is disadvantageous with increasing number of blades, since with each blade, the distance of the rivet holes to the cutting tip increases enormously.
  • the blades therefore have to be processed with different widths, which leads to very large cutting units, especially in systems with three or more blades.
  • Each blade position requires its own blade geometry.
  • a further disadvantage of razor blade units produced in this way is that the foam edge and the sliding strip are located on different frame parts, so that the parts which determine the skin contact plane are subjected to particularly high tolerances in their positioning. Razor blade units with three and more blades are therefore usually not fixed by rivets on the frame.
  • a razor blade unit in which the blades can move upwardly and downwardly against resilient arms during shaving in slots in a housing.
  • Metal clips disposed on the housing hold the blades in the slots and determine the positions of the cutting edges of the blades in the rest position.
  • the blades are first placed in the housing.
  • a U-shaped clip is positioned over the housing and the blades.
  • the legs of the clip are bent around the lower portion of the housing.
  • the DE 698 28 655 T2 also uses a metal retaining clip to secure the blades attached to the housing.
  • the retaining clip has an end portion which press-fits with a key portion of the housing to facilitate securing the retaining clip to the housing.
  • the housing has a first lever portion extending outwardly beyond adjacent surface portions on two sides of the lever portion.
  • the retaining clip includes a first end piece which has been bent over the first lever portion over the elastic limit of the clip. During the bending of the first end piece about the first lever section, the lever section is deformed by the applied pressure and reduced in height.
  • the blades of the razor blade units are usually ground from narrow steel belts. Since steel is a relatively expensive material, attempts are made to process minimum bandwidths. In order to ensure a good rinsability of the razor blade unit, ie rinsing the spaces between adjacent blades, shaving systems with three and more blades generally use angled blades.
  • the use of angled blades has long been known and can, for example, the EP 0 064 190 , of the DE 25 18 499 and the US 4,302,876 be removed.
  • a razor is described with at least one angular blade movably attached to a main body. Against the blades act spring fingers, which are supported on the main body. By the spring force acting from behind on the blades spring force the desired positioning of the individual blades takes place.
  • an essential requirement of razor blade units is to accurately position the cutting edges of the multiple blades with respect to each other and with respect to the skin-contacting plane.
  • the object of the present invention is therefore to provide an improved razor blade unit in which a high positioning accuracy with respect to the cutting edges of the blades is ensured in a simple manner. Furthermore, the required for positioning the blades pressure or holding force should be provided in the simplest possible way available. To store the blades, as few components as possible should be used. The razor blade unit should not last characterized by a relatively low installation costs and the lowest possible production costs.
  • a razor blade unit according to the appended claim 1 is used.
  • a razor blade unit according to the invention is characterized in that positioning notches in side walls of the blade housing are mounted, in which the lateral ends of the cutting edge of the blade are inserted abutting.
  • wells are also introduced into the lid, which serve to support the back of the blade.
  • the lid has an elastic component, wherein the blade rear side is acted upon by the elastic component with a pressing force which presses the blade with its cutting edge in the positioning notches.
  • a significant advantage of the razor blade unit according to the invention is that the mounting of the blades can be realized in a relatively simple manner and yet a very accurate position of the cutting edges of the blades is ensured.
  • For storage of the blades only corresponding recesses must be introduced into the housing or in the lid.
  • the lid must be designed accordingly so that it can exert a pressing force on the back of the blade.
  • the resulting from the manufacturing blade tolerances that can lead to deviations in the distance cutting edge-blade trailing edge are compensated on the back of the blade. This ensures that the blade tolerances do not affect the desired blade protrusion over a given skin interface.
  • the positioning notches are arranged such that their inner stop surface defines the desired projection of the cutting edge.
  • the positioning notches must be made with high accuracy, which, however, no problems when using a plastic injection molding process in the manufacture of the housing.
  • the lateral edge regions of the cutting edge are pressed into the positioning notches.
  • the lateral cut Edge areas of the cutting edges usually slightly into the housing material, thereby ensuring that the blades can not move out of their position by the shaving process.
  • the elastic component is formed by an elastomer layer.
  • an elastomeric layer By using an elastomeric layer, the pressure required to position the blades can be provided in an uncomplicated way.
  • the elastomer layer is to be adapted in terms of flexibility and application thickness such that the cutting edges are pressed with the force required for pressing against the housing, so as to achieve a determination of the blades.
  • the pressure exerted on the lid pressure force is chosen so large that the forces acting on the cutting edges during shaving forces do not lead to a displacement of the blades.
  • the lid can be designed as a 2-component injection molded part.
  • the elastic component can also be realized by means of a separate component and connected to the cover by means of suitable fastening means.
  • the elastic component is disposed immediately adjacent to the recesses of the lid, which receive the blade backs.
  • the elastic component rises in the direction of the rear of the blade beyond the recesses.
  • the lid has an aluminum element serving as a sacrificial anode, which with the lid closed is in contact with the blade rear sides in Contact is coming.
  • the blades can be easily protected against corrosion.
  • applied to protect against corrosion coating of the blades can therefore be omitted.
  • the aluminum element is preferably arranged in the elastic component of the lid.
  • the aluminum member may also be in contact with the blades at another suitable location in the blade housing.
  • the rear lid is provided with a central web, which has recesses for mounting the blade rear side.
  • the middle bridge serves the additional support of the blades.
  • the elastic component is arranged at least in the region of the depressions of the central web.
  • the aluminum element functioning as an operand anode can be arranged inside the elastic component of the central web.
  • the housing comprises webs extending in the direction of the cover, which serve as an assembly aid when the blades are inserted into the housing.
  • the blades are inserted into the remaining between the web guide spaces and held in this until the lid is placed in the appropriate position.
  • the webs thus facilitate the assembly of the razor blade unit.
  • the bars no longer have a mandatory function, but they can stabilize the blades under special loads against bending.
  • angular blades are used in the razor blade unit.
  • the blades are preferably used during the blade manufacturing process Angled at an angle of 50 ° to 70 °.
  • Angular blades can be installed particularly well in the razor blade unit according to the invention. The use of angle blades ensures a good flushability of the razor blade unit.
  • the razor blade unit comprises a foam edge arranged in the direction of the shaving in front of the blade for pretensioning the skin.
  • the foam edge is realized via an elastomeric plastic strip sprayed onto the front side of the housing.
  • the foam edge can be manufactured together with the housing in a two-component injection molding process.
  • the sliding strip preferably has a longitudinally extending extension, which is glued or pressed into a corresponding groove of the blade housing.
  • the skin is preferably containing nourishing substances.
  • the sliding strip is preferably made of a water-insoluble matrix and a combined with this water-soluble substance. The water-soluble substance is washed out over its useful life. This washing out can be displayed to the user by means of suitable indicators (for example different colors), so that the latter can be informed in a timely manner about the soon to reach the end of use of the razor blade unit and can make a corresponding exchange.
  • FIG. 1 shows an exploded view of a razor blade unit according to the invention.
  • a razor blade unit according to the invention comprises a blade housing 01 for receiving blades 04.
  • the blade housing 01 is used in the embodiment shown here for receiving a total of five blades 04, which each have a cutting edge 05.
  • the blades 04 are designed as angular blades in the illustrated embodiment.
  • the area having the cutting edge 05 is preferably angled at an angle of about 60 ° during the blade manufacturing process.
  • the blade housing 01 leaves on its front surface a blade window 02 open, in which the cutting edges 05 of the blades are exposed to be brought into skin contact during shaving.
  • the blade window is bounded on the short sides by side walls 03 of the blade housing.
  • positioning notches 07 (see Fig. 2 ) are introduced, in which strike the lateral ends of the cutting edges 05.
  • the positioning notches 07 determine the position of the cutting edges relative to a skin-contacting surface.
  • the abutment surfaces in the positioning grooves 07 can lie in a plane or describe a curved surface. Since the blades abut with their cutting edges 05 in the positioning grooves 07, tolerances of the blade width no longer affect the position of the cutting edges.
  • the stop surfaces in the positioning notches can be made of a hard plastic as the blade housing.
  • the blade housing 01 is also still provided with webs 08, which are used as assembly aids. Between the webs 08, the individual blades are used so that they run into the respective positioning notch 07 with their cutting edge 05.
  • the webs 08 can be manufactured with less precision, since the position of the cutting edges is defined by the positioning notches 07.
  • a foam edge 09 and a sliding strip 10 are arranged on the blade housing 01.
  • the foam edge 09 serving to bias the skin to be shaved consists of an elastomeric plastic and is preferably injected by means of two-component injection molding together with the blade housing 01. It would also be conceivable, of course, to use a separate component for the foam edge 09.
  • the sliding strip 10 comes during shaving after the cutting edges 05 of the blades 04 in contact with the skin.
  • the skin nourishing substances are included.
  • the sliding strip 10 consists of a water-soluble and a water-insoluble component.
  • a wear indicator can be realized which informs the user of the end of use.
  • the attachment of the sliding strip 10 on the blade housing is preferably carried out via an adhesive connection.
  • the blade housing 01 is rearward with a lid 14 (see also Fig. 3 ) preferably closed by a latching connection.
  • a lid 14 see also Fig. 3
  • the cover 14 or the blade housing 01 can be equipped with corresponding latching lugs 15 or grooves for receiving the latching lugs 15.
  • the cover 14 is provided with recesses 17, which are located on the lateral edge regions or on a central web 18. Each of these recesses 17 is preferably V-shaped and serves for storage in the finished assembled razor blade unit each of a blade rear side 19, which is opposite to the cutting edge 05 of the blade.
  • the lid 14 has an elastic component 20 (see also Fig. 3 ), which is preferably arranged strip-shaped on the inside of the lid 14.
  • the elastic component 20 can be manufactured together with the lid 14 by means of two-component injection molding. Alternatively, the elastic component 20 may also be designed as a separate component.
  • the elastic component 20 rises above the recesses 17 and comes to the blade rear side 19 to the plant. As a result, produced from the manufacturing process manufacturing tolerances of the blades 04 can be compensated.
  • an elastic pressure force is exerted on the blade rear side 19. As a result of this pressure force, the cutting edge 05 is pressed into the positioning notches 07 of the blade housing 01. The lateral areas of the cutting edge 05 hereby intersect slightly into the positioning notches 07.
  • the force with which the blades 04 are pressed against the blade housing 01 can be influenced by the material used for the elastic component 20 (Shore hardness) or by its application thickness. It must be ensured that this force is large enough so that the cutting edge 05 is sufficiently pressed against the blade housing 01, to ensure that the blades 04 can not move out of their position by the shaving process.
  • the elastic component 20 is inserted into the recesses 17 of the cover or it completely replaces the recesses.
  • the blade backs 19 are then pressed during assembly in the elastic component and are thereby fixed in position.
  • the lid 14 is provided with an aluminum element 22 serving as a sacrificial anode (see Fig. 3 . Fig. 6, Fig. 7 ).
  • the aluminum element 22 is an aluminum wire, which is introduced into the region of the elastic component 20 located in the central web 18.
  • the aluminum wire 22, for example, in the region of the recesses 17 of the lateral edge regions of the lid 14 may be arranged.
  • the assembly of the razor blade unit is as follows: First, the sliding strip 10 is attached to the blade housing 01. For this purpose, the extension 11 of the sliding strip 10 is glued into the groove 12 of the blade housing 01. Subsequently, the mounting of the blades 04. The blades 04 are inserted between each two webs 08 in the blade housing 01. The blades 04 are inserted into the positioning notches 07 of the blade housing 01. After all blades 04 are arranged in the blade housing 01, the detents 15 of the lid 14 are engaged in the grooves of the blade housing 01. Here, the blade backs 19 are inserted into the recesses 17 of the lid 14, via which they find the necessary rear support. About the elastic component 20 of the lid 14, a pressing force is exerted on the blades 04. As a result of this pressing force, the cutting edges 05 of the blades 04 are pressed against the blade housing 01, wherein the lateral regions of the cutting edges 05 can slightly cut into the blade housing 01.
  • the blades 04 are now fixed in the blade housing so that they can no longer move out of their position due to the forces acting on the razor blade unit during the shaving process.
  • FIG. 4 A view from behind of the fully assembled razor blade unit Fig. 4 be removed.
  • Fig. 5 shows the fully assembled razor blade unit in a front view, wherein the hidden body edges are drawn.
  • FIGS. 6, 7 and 8 show details of the razor blade unit according to the invention in further views.
  • the illustrated components of the razor blade unit have already been explained above.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Knives (AREA)
EP08104068A 2008-05-22 2008-05-22 Unité de lame de rasoir dotée d'un stockage d'arête coupante Active EP2123409B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP08104068A EP2123409B1 (fr) 2008-05-22 2008-05-22 Unité de lame de rasoir dotée d'un stockage d'arête coupante
AT08104068T ATE547213T1 (de) 2008-05-22 2008-05-22 Rasierklingeneinheit mit schneidkantenlagerung
ES08104068T ES2383167T3 (es) 2008-05-22 2008-05-22 Unidad de hojas de afeitar con alojamiento del filo de corte
US12/470,572 US8146255B2 (en) 2008-05-22 2009-05-22 Razor blade unit with cutting edge support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08104068A EP2123409B1 (fr) 2008-05-22 2008-05-22 Unité de lame de rasoir dotée d'un stockage d'arête coupante

Publications (2)

Publication Number Publication Date
EP2123409A1 true EP2123409A1 (fr) 2009-11-25
EP2123409B1 EP2123409B1 (fr) 2012-02-29

Family

ID=39760456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08104068A Active EP2123409B1 (fr) 2008-05-22 2008-05-22 Unité de lame de rasoir dotée d'un stockage d'arête coupante

Country Status (4)

Country Link
US (1) US8146255B2 (fr)
EP (1) EP2123409B1 (fr)
AT (1) ATE547213T1 (fr)
ES (1) ES2383167T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3072646A1 (fr) * 2015-03-25 2016-09-28 The Gillette Company Cartouche de rasoir
CN107995887A (zh) * 2015-05-13 2018-05-04 吉列有限责任公司 剃刀刀片架
US11541561B2 (en) 2016-01-13 2023-01-03 Edgewell Personal Care Brands, Llc Shaving implement

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KR100749925B1 (ko) 2006-06-29 2007-08-16 주식회사 도루코 면도기
GB0716941D0 (en) * 2007-08-31 2007-10-10 Knowledge & Merchandising Inc Razor handle
CA2730640C (fr) * 2008-07-18 2016-05-31 Vasileios Ntavos Procede et station pour fabriquer une cartouche de rasoir de securite, et cartouche de rasoir de securite
RU2008150012A (ru) * 2008-12-10 2010-06-20 Александр Тарасович Володин (RU) Лезвийный блок безопасной бритвы
KR20100091622A (ko) * 2009-02-11 2010-08-19 주식회사 도루코 일체형 카트리지
KR20110024234A (ko) * 2009-09-01 2011-03-09 주식회사 도루코 면도기 카트리지
US8359752B2 (en) 2010-06-17 2013-01-29 The Gillette Company Shaving razor cartridge
US8448339B2 (en) * 2010-08-03 2013-05-28 The Gillette Company Shaving cartridge with supressed blade geometry
US8413334B2 (en) * 2010-08-03 2013-04-09 The Gillette Company Shaving cartridge guard for supporting skin
US8713801B2 (en) * 2011-05-18 2014-05-06 L.P.I. Consumer Products, Inc. Razor with blade heating system
US9604375B2 (en) * 2011-05-18 2017-03-28 Heated Blades Holding Company, Llc Razor with blade heating system
JP6293464B2 (ja) 2013-11-27 2018-03-14 株式会社貝印刃物開発センター 剃刀
JP6499294B2 (ja) * 2014-12-24 2019-04-10 ビック・バイオレクス・エス・エー 剃毛ブレードカートリッジ及び当該剃毛ブレードカートリッジを具備するシェーバー
WO2017041845A1 (fr) * 2015-09-09 2017-03-16 Beiersdorf Aktiengesellschaft Rasoir de sécurité et unité de lames pour ledit rasoir
WO2017092836A1 (fr) 2015-12-01 2017-06-08 Bic-Violex Sa Rasoirs et cartouches de rasage
CN109414828B (zh) 2016-03-18 2020-12-18 个人护理市场及调研公司 剃刀盒
US9993931B1 (en) 2016-11-23 2018-06-12 Personal Care Marketing And Research, Inc. Razor docking and pivot
US11541560B2 (en) * 2018-03-01 2023-01-03 Rolling Razor, Inc. Precision razor with low cost assembly
US11154999B2 (en) * 2018-03-30 2021-10-26 The Gillette Company Llc Shaving razor cartridge
USD884969S1 (en) 2019-02-27 2020-05-19 Pcmr International Ltd Combined razor cartridge guard and docking
USD884970S1 (en) 2019-02-27 2020-05-19 PCMR International Ltd. Razor cartridge guard
USD884971S1 (en) 2019-02-27 2020-05-19 Pcmr International Ltd Razor cartridge
KR102496966B1 (ko) * 2020-03-10 2023-02-07 주식회사 도루코 면도기 카트리지
USD975360S1 (en) * 2020-07-07 2023-01-10 Koninklijke Philips N.V. Blade for shaver
US11000960B1 (en) 2020-11-16 2021-05-11 Personal Care Marketing And Research, Inc. Razor exposure
JP1708255S (ja) * 2020-12-22 2022-02-24 かみそりの刃用キャップ
EP4197724A1 (fr) * 2021-12-14 2023-06-21 BIC Violex Single Member S.A. Cartouches de rasoir
USD987187S1 (en) * 2022-05-24 2023-05-23 Nature Lab Corporation Back shaver head

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DE2518499A1 (de) 1974-05-15 1975-11-27 Gillette Co Wegwerf-klingeneinheit fuer nassrasierer
US4302876A (en) 1980-03-14 1981-12-01 Warner-Lambert Company Razor blade with inclined edge
EP0064190A2 (fr) 1981-04-30 1982-11-10 The Gillette Company Rasoir mécanique
US4378634A (en) 1979-12-07 1983-04-05 The Gillette Company Razor blade assembly
EP0321883A1 (fr) * 1987-12-21 1989-06-28 The Gillette Company Unité de rasage à sureté
EP0858869A1 (fr) 1997-01-17 1998-08-19 Warner-Lambert Company Têtes de rasoir avec lames flexibles indépendantes
US20030159291A1 (en) 1997-07-25 2003-08-28 Gregory Clark Shaving system with uniform shaving forces
DE69816635T2 (de) 1997-09-30 2004-05-13 The Gillette Co., Boston Rasierklingeneinheit mit metallklammer zum halten der klingen
EP1531030A2 (fr) 2003-11-17 2005-05-18 Knowledge & Merchandising, Inc. Limited Rasoir

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JP4361782B2 (ja) * 2003-12-26 2009-11-11 株式会社平和 遊技機
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Publication number Priority date Publication date Assignee Title
DE2518499A1 (de) 1974-05-15 1975-11-27 Gillette Co Wegwerf-klingeneinheit fuer nassrasierer
US4378634A (en) 1979-12-07 1983-04-05 The Gillette Company Razor blade assembly
US4302876A (en) 1980-03-14 1981-12-01 Warner-Lambert Company Razor blade with inclined edge
DE3127999C2 (de) 1981-01-30 1985-01-24 The Gillette Co., Boston, Mass. Rasierklingen-Anordnung
EP0064190A2 (fr) 1981-04-30 1982-11-10 The Gillette Company Rasoir mécanique
EP0321883A1 (fr) * 1987-12-21 1989-06-28 The Gillette Company Unité de rasage à sureté
EP0858869A1 (fr) 1997-01-17 1998-08-19 Warner-Lambert Company Têtes de rasoir avec lames flexibles indépendantes
US20030159291A1 (en) 1997-07-25 2003-08-28 Gregory Clark Shaving system with uniform shaving forces
DE69816635T2 (de) 1997-09-30 2004-05-13 The Gillette Co., Boston Rasierklingeneinheit mit metallklammer zum halten der klingen
DE69828655T2 (de) 1997-09-30 2005-12-08 The Gillette Co., Boston Rasierklingeneinheit mit Metallklammer zum Halten der Klingen
EP1531030A2 (fr) 2003-11-17 2005-05-18 Knowledge & Merchandising, Inc. Limited Rasoir

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3072646A1 (fr) * 2015-03-25 2016-09-28 The Gillette Company Cartouche de rasoir
WO2016153800A1 (fr) * 2015-03-25 2016-09-29 The Gillette Company Cartouche de rasoir de rasage
CN107995887A (zh) * 2015-05-13 2018-05-04 吉列有限责任公司 剃刀刀片架
CN107995887B (zh) * 2015-05-13 2020-04-10 吉列有限责任公司 剃刀刀片架
US11541561B2 (en) 2016-01-13 2023-01-03 Edgewell Personal Care Brands, Llc Shaving implement

Also Published As

Publication number Publication date
EP2123409B1 (fr) 2012-02-29
ATE547213T1 (de) 2012-03-15
US20090288304A1 (en) 2009-11-26
ES2383167T3 (es) 2012-06-18
US8146255B2 (en) 2012-04-03

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