Patent US4896420A successfully refreshed from Google Patents.
US4896420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric shaver
Assignee: Remington Corp LLC
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Filing: 1987-10-07
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Granted: 1990-01-30
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Expires: 2007-10-07
Abstract
Abstract An electric dry shaver is described having an improved skin stretcher for enhancing performance of the shaver. The skin stretcher includes a slide body which can be positioned for effecting the skin stretching function or retracted for enabling the shaver to be used at difficult to reach body sites.
Inventors
- 👤 David R. Locke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:39
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/38; B26B19/42; Y; Y10; Y10S; Y10S30/00; Y10S30/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
290 words
An improved, electric dry shaver, comprising: (a) a hand held housing; (b) a cutter head mounted to said housing; (c) said cutter head including a demountable hair pocket having a side wall thereof, said side wall having an exterior surface thereof; (d) said cutter head having an elongated, longitudinally extending hair cutter assembly including a first stationary, apertured cutter member, and, a second reciprocating cutter member positioned in shearing engagement with said first member; (e) said cutter head assembly adapted to shear body hair which extends through said first cutter member apertures when said cutter head is positioned by a user for engaging body hair; (f) an electrically energized actuating means mounted in said housing and mechanically coupled to said reciprocating cutter member for imparting reciprocating motion to said second cutter member upon electrical energization of said actuating means; (g) an elongated, longitudinally extending skin stretcher means laterally spaced from and extending generally parallel with hair cutter assembly; (h) said skin stretcher means including a slide body mounted to said hair pocket side wall in sliding engagement with said exterior surface; and, (i) means for selectively positioning said skin stretcher slide body at a first extended position in engagement with said exterior wall surface at which said slide body engages a user's skin and causes tensioning of the skin over an area which includes the location at which said cutter head assembly engages body hair, and, for positioning said skin stretcher slide body at a second retracted position in engagement with said exterior wall surface at which position said slide body is positioned substantially out of engagement with the user's skin and does not cause tensioning thereof in the area at which said cutter head assembly engages the user's body.
Claim 2
Dependent Claim
290 words
An improved, electric dry shaver, comprising: (a) a hand held housing; (b) a cutter head mounted to said housing; (c) said cutter head including a demountable hair pocket having a side wall thereof, said side wall having an exterior surface thereof; (d) said cutter head having an elongated, longitudinally extending hair cutter assembly including a first stationary, apertured cutter member, and, a second reciprocating cutter member positioned in shearing engagement with said first member; (e) said cutter head assembly adapted to shear body hair which extends through said first cutter member apertures when said cutter head is positioned by a user for engaging body hair; (f) an electrically energized actuating means mounted in said housing and mechanically coupled to said reciprocating cutter member for imparting reciprocating motion to said second cutter member upon electrical energization of said actuating means; (g) an elongated, longitudinally extending skin stretcher means laterally spaced from and extending generally parallel with hair cutter assembly; (h) said skin stretcher means including a slide body mounted to said hair pocket side wall in sliding engagement with said exterior surface; and, (i) means for selectively positioning said skin stretcher slide body at a first extended position in engagement with said exterior wall surface at which said slide body engages a user's skin and causes tensioning of the skin over an area which includes the location at which said cutter head assembly engages body hair, and, for positioning said skin stretcher slide body at a second retracted position in engagement with said exterior wall surface at which position said slide body is positioned substantially out of engagement with the user's skin and does not cause tensioning thereof in the area at which said cutter head assembly engages the user's body.
Claim 3
Dependent Claim
22 words
The shaver of claim 1 including guide means for guiding movement of said slide body in sliding engagement with said wall surface.
Claim 4
Dependent Claim
16 words
The shaver of claim 2 including means for biasing said slide body at two different positions.
Claim 5
Dependent Claim
13 words
The shaver of claim 3 wherein said biasing means includes a resilient body.
Claim 6
Dependent Claim
31 words
The shaver of claim 2 wherein said slide body includes first and second extending guides and said hair pocket includes first and second extending grooves for receiving and engaging said guides.
Claim 7
Dependent Claim
35 words
The shaver of claim 5 including first and second grooves formed on said slide body and first and second slide stops formed on said hair pocket and positioned in engagement with said slide body grooves.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-01-29 | 1993-07-31 | 1994-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-29 | 1997-07-31 | 1998-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-29 | 2001-07-31 | 2002-01-30 | $7700.00 | Window Closed / Lapsed |