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US4549352A Expired / Lapsed US ⏱️ 0.0 years remaining

Washable electric shaver

Assignee: Maxell Ltd
•
Filing: 1983-09-14
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Granted: 1985-10-29
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Expires: 2003-09-14
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Abstract

Abstract A washable electric shaver comprising a water-tight housing having a drive motor therein and a switch mounted thereon, and a shaving head. The shaving head has a stationary shear plate cooperable with a movable shear element which, when driven by the drive motor, oscillates in engagement with the stationary shear plate to cut hairs of a beard. The shaving head has a pair of end openings located on respective sides of the movable shear element and adapted to be selectively opened and closed by respective lateral lids which are normally biased so as to close the end openings. The shaver can be washed by allowing a flush of water to flow from one of the end openings to the other through the interior of the head when the lateral lids are in opened positions.

Inventors

  • 👤 Masahiko Ochiai
  • 👤 Yoshinori Taito

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 22:28
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/38; B26B19/3853

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 325 words
A washable electric shaver comprising, in combination: a generally elongated water-tight housing serving concurrently as a grip; a drive unit housed within said housing; an operating element mounted on said housing for controlling a power supply control switch for interrupting and initiating supply of electric power to said drive unit; a generally T-shaped shaving head including a hollow stem mounted at one end on said housing so as to render said shaver as a whole to represent a generally T-shaped configuration integral with a transverse bench portion a cap mounted removably on said portion, said cap having a pair of spaced end openings defined therein and located substantially on respective sides of said housing, a stationary shear plate replaceably carried by said cap, a generally elongated shear element for movement in engagement with said stationary shear plate to cut hairs to be shaved, and means for supporting said movable shear element within said stem portion and for transmitting a drive from said drive unit thereto, said end openings being aligned with each other and positioned adjacent opposite ends of said movable shear element; a pair of pivotally supported lateral lids provided on said cap for selectively opening and closing said respective end openings; means for biasing said lateral lids to open and close said associated end openings; a slide element supported on said stem portion movable between open and closed positions, said slide element when moved from said close position to said open position bringing said lateral lids in position to open said end openings; means for transmitting the movement of said slide element to said lateral lids; and an eccentric drive pin coupled with said drive unit for driving connection with said means for supporting said movable shear element and said transmitting means when said shaving head is mounted on said one end of said housing, said slide element being positioned on said shaver head circumferentially opposite to said operating element on said housing.
Claim 2
Dependent Claim 325 words
A washable electric shaver comprising, in combination: a generally elongated water-tight housing serving concurrently as a grip; a drive unit housed within said housing; an operating element mounted on said housing for controlling a power supply control switch for interrupting and initiating supply of electric power to said drive unit; a generally T-shaped shaving head including a hollow stem mounted at one end on said housing so as to render said shaver as a whole to represent a generally T-shaped configuration integral with a transverse bench portion a cap mounted removably on said portion, said cap having a pair of spaced end openings defined therein and located substantially on respective sides of said housing, a stationary shear plate replaceably carried by said cap, a generally elongated shear element for movement in engagement with said stationary shear plate to cut hairs to be shaved, and means for supporting said movable shear element within said stem portion and for transmitting a drive from said drive unit thereto, said end openings being aligned with each other and positioned adjacent opposite ends of said movable shear element; a pair of pivotally supported lateral lids provided on said cap for selectively opening and closing said respective end openings; means for biasing said lateral lids to open and close said associated end openings; a slide element supported on said stem portion movable between open and closed positions, said slide element when moved from said close position to said open position bringing said lateral lids in position to open said end openings; means for transmitting the movement of said slide element to said lateral lids; and an eccentric drive pin coupled with said drive unit for driving connection with said means for supporting said movable shear element and said transmitting means when said shaving head is mounted on said one end of said housing, said slide element being positioned on said shaver head circumferentially opposite to said operating element on said housing.
Claim 3
Dependent Claim 89 words
The shaver of claim 1, wherein said transverse bench is tilted forward and upwards relative to said stem such as to position said shaving head so as to confront a face of the user when the housing held by a hand of the user is generally positioned vertically, and wherein said slide element is provided on said T-shaped shaving head at a location adjacent a junction between said stem and said transverse bench portion facing in a direction generally opposite to the direction in which said bench is tilted.
Claim 4
Dependent Claim 25 words
The shaver of claim 2, wherein said T-shaped shaving head has a constricted area defined at said junction between said stem and said transverse bench.
Claim 5
Dependent Claim 57 words
The shaver of claim 1, wherein said lateral lids are pivotally supported on said transverse bench, and wherein said lateral lids when held in an open position lie in a plane parallel to said movable shear element and extend outwards therefrom in opposite directions with respect to each other perpendicular to each of said respective end openings.

References Cited (Backward Citations)

US2395296A Cited
US4233733A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-10-28 1989-04-29 1989-10-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-10-28 1993-04-29 1993-10-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-10-28 1997-04-29 1997-10-29 $7700.00 Window Closed / Lapsed

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