US3690000A - Dry shave appliances - Google Patents

Dry shave appliances Download PDF

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Publication number
US3690000A
US3690000A US44150A US3690000DA US3690000A US 3690000 A US3690000 A US 3690000A US 44150 A US44150 A US 44150A US 3690000D A US3690000D A US 3690000DA US 3690000 A US3690000 A US 3690000A
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United States
Prior art keywords
coupling piece
shaver
plane
output member
motor
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
US44150A
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English (en)
Inventor
Aldo Loner
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.)
US Philips Corp
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US Philips Corp
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Filing date
Publication date
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Application granted granted Critical
Publication of US3690000A publication Critical patent/US3690000A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3853—Housing or handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/02—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the reciprocating-cutter type
    • B26B19/04—Cutting heads therefor; Cutters therefor; Securing equipment thereof
    • B26B19/10—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving two or more different types of reciprocating cutting elements, e.g. a pair of toothed shearing elements combined with a pair of perforated cutting elements or a combined toothed and perforated cutting assembly
    • B26B19/107—Cutting heads therefor; Cutters therefor; Securing equipment thereof involving two or more different types of reciprocating cutting elements, e.g. a pair of toothed shearing elements combined with a pair of perforated cutting elements or a combined toothed and perforated cutting assembly with means for selectively engaging the drive for a fixed-position secondary cutting unit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/26—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the type performing different methods of operation simultaneously, e.g. reciprocating and oscillating; of the type having two or more heads of differing mode of operation
    • B26B19/265—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers of the type performing different methods of operation simultaneously, e.g. reciprocating and oscillating; of the type having two or more heads of differing mode of operation of the type having two or more heads of differing mode of operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/28—Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3886—Actuating members, e.g. switches or control knobs

Definitions

  • SHEET 2 UF 3 1 I m y mmz? INVENTO A Zclp [$776k 40 Mikey 0M4 60% DRY SHAVE APPLIANCES This invention relates to dry shave appliances having shaver parts and long-hair cutting parts. The two parts have respective upper and lower cutters, the latter of which are drivable to perform the cutting action.
  • a dry shaver appliance has a shaver part, at least one long-hair cutting part, each of which parts has respective upper and lower cutters, a motor with a drive output member, a coupling piece, and an operating element, the coupling piece being displaceable by the operating element and positionable in at least two working positions, in which it couples just one of the lower cutters tothe drive output member.
  • a further operational position for the coupling piece can be provided in which it is operatively connected with both lower cutters, in this way the dry shaver appliance can be operated not only inthe manner of operation as stated above, but also both with driven lower cutter of the shaver part and simultaneously driven lower cutter of the long hair cutting part.
  • the shiftable coupling piece comprises on the one hand a first coupling part, for example a friction or dog clutch part, for. the transmission of a rotating movement and on the other hand a second coupling part which is a component of an eccentric gearing for the conversion of a rotating movement into a reciprocating movement.
  • the shiftable coupling piece is arranged on the motor drive-output member and comprises a first coupling part of disc form which at the same time carries an eccentric as second coupling part, the first coupling part being provided for cooperation with a corresponding drive member of the lower cutter of the shaver part and the second coupling part being provided for cooperation with a drive lever for the lower cutter of the long hair cutting part.
  • a further favorable construction for a coupling piece in a dry shaver appliance having a rotating motor driveoutput member, at least one rotatingly driven lower cutter for a shaver part and at least one reciprocatingly driven lower cutter for a long hair cutting part is obtained if the shiftable coupling piece comprises a carrithe other hand a second coupling part, which is formed by a pivotable lever co-operating with the lower cutter of the long-hair cutting part, the first couplingpart being provided for co-operation with the motor driveoutput member and the lever being provided for cooperation with an eccentric fitted on the motor driveoutput member.
  • the carrier of the coupling piece and the entire long-hair cutting part are formed as one displaceable construction unit, in which case the long-hair cutting part assumes, when the shaver part is driven, a rest position from which it is displaceable into an operational position in which the lower cutter allocated to it is driven.
  • FIG. 1 a dry shave appliance having a rotatingly driven lower cutter for a shaver. part and a reciprocatingly driven lower cutter for a long-hair cutting part is illustrated, the coupling piece being shiftable together with the motor.
  • FIGS. 2 and 3 there is shown an operational position of a coupling piece, displaceable together with a long-hair cutting part, in a dry shaver appliance of the above-mentioned kind.
  • FIG. 4 for a dry shave appliance with reciprocatingly driven lower cutters for a shaver part and a long-hair cutting part, a coupling piece arranged pivotably on the motor drive-output member is illustrated, which is represented separately in FIG. 5 in oblique view and in FIG. 6 in section.
  • FIG. 7 an example of embodiment is illustrated with a coupling piece displaceable into more than two operational positions, while FIGS. 8 and 9 also show a section of the parts essential to the invention, along the lines VIIIVIII and IX-IX in FIG. 7.
  • l designates a shaver part and 2 a long-hair cutting part of a dry shaver appliance.
  • the shaver part comprises a stationary upper cutter 4 provided with slots 3, with which a rotatingly drivable lower cutter 5 provided with cutting edges cooperates in the usual way.
  • the long hair cutting part 2 consists of a fixedly arranged upper cutter 7 having cutting teeth 6, with which a reciprocatingly drivable lower cutter 9 carrying cutting teeth 8 cooperates likewise in known manner.
  • the appliance is equipped with a motor 10, the shaft 11 of which serves as motor drive-output member.
  • the coupling piece 12 in this case has a discshaped first coupling part 13 for the transmission of a rotating movement and a second coupling part 14 which serves for the conversion of a rotating movement into a reciprocating movement and is a component of an eccentric gearing.
  • the coupling piece as such is formed as disc 13 which carries on the side facing the motor an eccentric 14 and on the other side a friction lining 15.
  • a shaft 16 carrying the lower cutter 5 of the shaver part is arranged on the appliance and is provided with a disc 18 corresponding to the disc 13 of the coupling piece and likewise carrying a friction lining 17.
  • the coupling piece is in the operational position as illustrated in FIG. 1, the two discs 13 and 18 and friction linings 15, 17 are not in operative connection with one another, so that the lowercutter 5 of the shaver part is not driven.
  • a lever 20 pivotable about a spindle 19 and having a fork-shaped end 21 with which it grasps around the eccentric 14 when the coupling piece 12 is in the operational position as represented in FIG. 1.
  • the eccentric 14 and the lever 20 form an eccentric gearing with which the rotating movement of the motor drive-output member is converted into a reciprocating movement of the lower cutter 9 of the long hair cutting part.
  • the coupling piece 12 is displaceable into a second operational position in which the lower cutter 5 of the shaver part is driven exclusively.
  • This is effected in the present example of embodiment due to. the fact that the motor 10 together with its shaft 11 and the coupling piece 12 is arranged for displacement as a whole in the appliance in the direction of the motor shaft.
  • a disc 24 rotatable about a spindle 23 by means of an operating element 22, which disc carries a cam path 25 on which the motor is .supported through a stirrup 27 under the action of springs 26.
  • the stirrup 27 serves at the same time, together with a further stirrup 28, for the guidance of the motor during its displacement, which is effected due to the fact that the operating element 22 is rotated and thus the motor is shifted in the direction towards the lower cutter 5 by means of the cam path 25.
  • the coupling piece 12 is brought by means of the operating element 22 into the position as shown in FIG. 1, whereby the operative connection between the two discs 13 and 18 is eliminated but in its place an operative connection is restored between the eccentric l4 and the lever 20.
  • a guide surface 30 is provided in order to facilitate the passage of the fork-shaped lever end 21 from the cylindrical part 29 to the eccentric 14.
  • FIGS. 2 and 3 concerns the dry shaver appliance having a displaceable long hair cutting part 102 and a shaver part 101, consisting of two shaver systems arranged side by side, each of which is assembled as in the example of embodiment according to FIG. 1.
  • FIGS. 2 and 3 are cross-sectional views and therefore, in each case, only one of these shaver visible is visible, the other one being located directly beside the one which is visible and above the plane of the drawing itself.
  • the lower cutters 105 of the two shaver systems are driven from a central drive member which has a drive shaft 131 -on which a toothed wheel 132 is seated which cooperates with toothed wheels 133 on the lower cutters 105.
  • the coupling piece 112 here comprises a carrier 134 on which there are arranged on the one hand the first coupling part 135 for the transmission of a rotating movement and on the other hand the second coupling part 136 for the conversion of a rotating into a reciprocating movement.
  • the coupling part 135 in this case consists of a bush 37 carried by the carrier 134, which bush is displaceably arranged on the drive shaft 131 but operatively connected therewith, that is to say in the present case secured in rotation.
  • the coupling part 136 consists of a lever 141 pivotable about a spindle on the carrier 134, which lever cooperates with one end 142 with the lower cutter 109 of the long hair cutting part and has at its other end 143 a fork 144 which is provided to cooperate with an eccentric 45 arranged on the motor shaft.
  • the long hair cutting part itself is also fitted onthe carrier 134; the upper cutter 107 in this case is nondisplaceable and the lower cutter 109 is reciprocatingly movable.
  • carrier 134 itself is displaceable into two operational positions by means of an operating element 122.
  • FIG. 2 there is illustrated that operational position of the coupling piece 112 in which the shaver part is driven exclusively.
  • the bush 137 has been pushed to the motor end of the shaft 131, the pins 138 being situated in the region of action of the bar 139. Therefore when the motor shaft 111 is rotating the pins 138 are grasped by the bar 139 and thus the shaft 131 is driven through the bush 137.
  • the fork-shaped end 144 of the drive lever 141 for the long hair cutting part is not situated in the region of action of the eccentric 145, when the carrier is in this position, so that this lever is not driven.
  • the entire long hair cutting part 102 is in this case sunk into a trough of the housing, so that it is not a hindrance when the shaver part is in use.
  • FIG. 3 On displacement of the carrier 134 out of the position as shown in FIG. 2 into that according to FIG. 3, the long hair cutting part 102 as a whole is brought into its operational position. At the same time the bush 137 is pushed away from the motor end of the shaft 131, so that the drive of the shaver part is eliminated by the fact that the pins 138 depart from the region of action of the bar 139. The fork-shaped end 144 of the lever 141 in this case is pushed on to the eccentric 145, the rotating movement of the motor shaft being converted into a reciprocating movement of the lever 141, so that now the lower cutter of the shaver part is driven.
  • FIG. 4 a part of a shaver appliance is illustrated which comprises a reciprocating motor drive-output member, namely the oscillating armature lever 247, oscillating about the spindle 246, of an oscillating armature motor (not shown further) of the usual construction style.
  • the shaver part 201 consists of a perforated shearing foil 248, with which there cooperates a lamellar lower cutter 250 drivable back and forth by means of an engaging pin 249.
  • the long hair cutting part 202 comprises a fixedly arranged upper cutter 207 and a lower cutter 209 likewise drivable back and forth by means of an engaging pin 251.
  • the coupling piece 212 is arranged for pivoting on the motor drive-output member 247 perpendicularly of the plane of oscillation 252 thereof about a spindle 253, as indicated by the arrow 254 in FIG. 5.
  • the coupling piece itself consists of a fork formed by the parts 255, 256, which cooperates alternately with one of the two engaging pins 249 and 251 of the lower cutters 250 and 209.
  • the latter possesses an extension 257 extending substantially perpendicularly of the plane of oscillation 252, which protrudes with clearance. into a Slot 258 extending in the direction of oscillation 252 of the coupling piece, which slot is provided in an operating element 222 displaceable in the longitudinal direction of the coupling piece.
  • a ball catch 259 acting between the coupling piece and the oscillating armature 247 and represented more precisely in FIG. 6 serves to fix the two operational positions into which the coupling piece can be displaced. So that the engaging pins 249, 251 come securely into engagement with the fork 255, 256 on displacement of the coupling piece, the fork com- When the coupling piece is in the operational position as illustrated in FIG. 4, determined by the ball catch 259, this piece is coupled with the lower cutter 9 of the long hair cutting part.
  • the reciprocating movement of the oscillating armature 247 is transmitted through the prongs 262, 263 of the fork 255, 256, which grasp around the engaging pin 251, exclusively to the lower cutter 209 of the long hair cutting part.
  • the extension 257 oscillates freely in the slot 258 of the operating element 222, which is situated in one detent position.
  • the extension 257 of the coupling piece is carried with it, whereby the coupling piece is pivoted in the counter-clockwise direction until under the action of the ball catch 259 it snaps into its second operational position.
  • the prongs 262, 263 of the fork 255, 256 grasp around the engaging pin 249, so that now the lower cutter 250 of the shaver part is exclusively driven.
  • the extension 257 of the coupling piece again moves with play in the slot 258 of the operating element 222.
  • FIG. 7 a dry shaver appliance of the kind as shown in FIG. 4 is again illustrated; now however this has two long hair cutting parts 302 and 302', preferably having different cutting teeth forms.
  • the coupling piece is displaceable in to more than two operational positions, again determined by a ball catch 359, namely five in total, wherein, considered in the case of counterclockwise pivoting, in the first operational position it is operatively connected exclusively with the lower cutter 309, in the second both with the lower cutter 309 and with the lower cutter 350, in the third exclusively with the lower cutter 350, in the fourth both with the lower cutter 350 and with the lower cutter 309 and in the fifth exclusively with the lower cutter 309'.
  • the dry shaver appliance is universally usable, since both the shaver part and the long hair cutters can be set in operation independently and also in combination.
  • the coupling piece 312 consists of a plate 364 of sec-. tor form, the hub of which has a toothing 365 on'its outer side.
  • the coupling piece pivotable about a spindle 366, is arranged between two arms 367, 368 of the oscillating armature lever 347 which carry this spindle 366.
  • a rack 369 passing freely through between the arms 367, 368 is displaceably provided on the appliance, which rack cooperates with the toothing 365 on the coupling piece 312.
  • the rack is displaceable by means of the operating element 322 which is movable into five positions and possesses a cam path 370 carrying five stages, against which the rack is supported as shown more precisely by FIG. 9.
  • the rack is shiftable into five positions and thus the coupling piece is rotatable to five operational positions.
  • the cooperation of the coupling piece with the lower cutters takes place in a manner in which the plate 364 engages in slots 371, 372 and 373 of the lower cutters respectively, as shown for the third operational position in FIGS. 7 and 8.
  • the toothing 365 of the coupling piece 12 rolls on the arcuately formed toothing of the stationary rack 369.
  • the position of the coupling piece corresponding to the second operational position, in which both the lower cutter 309 of the long-hair cutting part 302 and the lower cutter 350 of the shaver part are driven, is indicated in chain lines in FIG. 7. From this it can be seen that the plate 364 in this case extends both into the slot 372 of the lower cutter 350 and into the slot 371 of the lower cutter 309. Furthermore the position of the coupling piece is indicated in FIG. 7 with a dot-anddash line in the first operational position in which the plate 364 co-operates only with the lower cutter 309. The position of the cutting piece is analogous in the other types of operation of the appliance.
  • a dry shave appliance having a casing, a shaver part, at least one long-hair cutting part, each of which parts has respective upper and reciprocating lower cutters, a motor with a drive-output member that reciprocates to define a first plane, an operating element movable on said'casing, and a coupling piece pivotally engaged directly to the motor drive-output member for pivoting substantially perpendicularly to said first plane of reciprocation, the coupling piece being engaged by the operating element and thus pivotable on said output member and positionable in at least two working positions, said coupling piece coupling only one of the lower cutters to the drive output member in each of said two positions.
  • a dry shaver appliance according to claim 1 in which there is a further operational position for the coupling piece between two of said working positions, in which further position it is operatively connected with both lower cutters.
  • each lower cutter has apin extending therefrom, and said coupling piece has a forked-end drive part for engagement with the lower cutters, the forked-end having two spaced prongs each of which cooperates with only one of said engaging pins on the lower cutters.
  • a dry shaver appliance according to claim 3 in which the fork has two funnel-shaped indentations extending perpendicularly to the first plane of reciprocation, for receiving the engaging pins.
  • a cliy s aver appliance according to claim 2 having a reciprocating motor drive-output member and reciprocatingly driven lower cutters, in which the coupling piece is arranged on the motor drive-output member for pivoting substantially perpendicularly to the plane of reciprocation thereof.
  • a dry shaver having a casing, a shaver part and a long-hair cutting part, each part having respective fixed and reciprocating cutters, a motor with an armature that reciprocates and thus defines a first plane of reciprocation, first means for selectively coupling the armature to engage and reciprocate only one of said lower cutters, the first means being connected to said armature to pivot substantially perpendicular to said first plane between two positions in each of which the first means engages only one of said lower cutters, and second means movable on said casing for engaging and moving said first means between said two positions.
  • a dry shaver according to claim 7 further comp rising third means mounted on the armature for resiliently engaging the first means and restraining it in either of said positions until the second means moves the first means to the other position.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
US44150A 1969-06-10 1970-06-08 Dry shave appliances Expired - Lifetime US3690000A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT551469A AT297531B (de) 1969-06-10 1969-06-10 Trockenrasiergerät mit mindestens einem Rasierteil und mindestens einem Langhaarschneideteil

Publications (1)

Publication Number Publication Date
US3690000A true US3690000A (en) 1972-09-12

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ID=3576629

Family Applications (1)

Application Number Title Priority Date Filing Date
US44150A Expired - Lifetime US3690000A (en) 1969-06-10 1970-06-08 Dry shave appliances

Country Status (9)

Country Link
US (1) US3690000A (de)
AT (1) AT297531B (de)
CA (1) CA922885A (de)
CH (1) CH512297A (de)
DE (1) DE2028063C3 (de)
ES (1) ES187986Y (de)
FR (1) FR2051050A5 (de)
GB (1) GB1299255A (de)
NL (1) NL7008330A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389772A (en) * 1980-06-27 1983-06-28 Sunbeam Corporation Electric dry shaver
US4993152A (en) * 1989-01-18 1991-02-19 U.S. Philips Corp. Dry-shaving apparatus
US5052106A (en) * 1989-05-18 1991-10-01 U.S. Philips Corp. Electric shaver
WO2005007354A1 (en) * 2003-07-23 2005-01-27 Koninklijke Philips Electronics N.V. Shaving apparatus
WO2005123353A1 (de) * 2004-06-17 2005-12-29 Braun Gmbh Elektrischer rasierapparat
US20080040927A1 (en) * 2006-08-17 2008-02-21 Tung Yan Lau Electric shaver and trimmer
WO2009052922A1 (de) * 2007-10-22 2009-04-30 Braun Gmbh Haarentfernungsgerät
US20100139097A1 (en) * 2007-02-01 2010-06-10 Braun Gmbh Hair Removal Apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013009306A1 (de) * 2013-06-04 2014-12-04 Edmund Galster Elektrischer Nassrasierer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2300143A (en) * 1940-12-16 1942-10-27 Emil G Berg Cutter head for shaving devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2300143A (en) * 1940-12-16 1942-10-27 Emil G Berg Cutter head for shaving devices

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389772A (en) * 1980-06-27 1983-06-28 Sunbeam Corporation Electric dry shaver
US4993152A (en) * 1989-01-18 1991-02-19 U.S. Philips Corp. Dry-shaving apparatus
US5052106A (en) * 1989-05-18 1991-10-01 U.S. Philips Corp. Electric shaver
US20080052910A1 (en) * 2003-07-23 2008-03-06 Koninklijke Philips Electronics N.V. Shaving Apparatus
WO2005007354A1 (en) * 2003-07-23 2005-01-27 Koninklijke Philips Electronics N.V. Shaving apparatus
US9149942B2 (en) 2003-07-23 2015-10-06 Koninklijke Philips N.V. Shaving apparatus
CN100462209C (zh) * 2004-06-17 2009-02-18 布劳恩股份有限公司 电动剃须刀
US7490408B2 (en) 2004-06-17 2009-02-17 Braun Gmbh Electric shaving apparatus
US20070130774A1 (en) * 2004-06-17 2007-06-14 Reinhold Eichhorn Electric shaving apparatus
WO2005123353A1 (de) * 2004-06-17 2005-12-29 Braun Gmbh Elektrischer rasierapparat
US20080040927A1 (en) * 2006-08-17 2008-02-21 Tung Yan Lau Electric shaver and trimmer
US20100139097A1 (en) * 2007-02-01 2010-06-10 Braun Gmbh Hair Removal Apparatus
US9533422B2 (en) * 2007-02-01 2017-01-03 Braun Gmbh Hair removal apparatus
WO2009052922A1 (de) * 2007-10-22 2009-04-30 Braun Gmbh Haarentfernungsgerät

Also Published As

Publication number Publication date
GB1299255A (en) 1972-12-13
CA922885A (en) 1973-03-20
DE2028063B2 (de) 1978-08-10
ES187986U (es) 1974-01-16
DE2028063C3 (de) 1979-04-19
DE2028063A1 (de) 1971-07-29
AT297531B (de) 1972-03-27
NL7008330A (de) 1970-12-14
ES187986Y (es) 1974-09-01
CH512297A (de) 1971-09-15
FR2051050A5 (de) 1971-04-02

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