US4074427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary trimmer assembly
Assignee: Remington Products Inc
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Filing: 1976-01-12
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Granted: 1978-02-21
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Expires: 1996-01-12
Abstract
Abstract Auxiliary trimmer unit for an electric dry shaver comprising a stationary and a movable cutter wherein the movable cutter is provided with spaced dual cutting surfaces. A guard unit is provided for the trimmer unit and means are provided to permit shifting of the guard alternately from a position where a first of the cutting surfaces of the trimmer is covered and a second position where the first cutting surface is exposed.
Inventors
- 👤 Michael John Marchetti
- 👤 Edward Szymansky, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:21
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/02; B26B19/04; B26B19/10
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
141 words
In an electric dry shaver, a. a casing having a main cutter head mounted thereon, b. a trimmer unit mounted on said casing adjacent said main cutter head and having a cutting surface formed by a stationary cutter and movable cutter mounted for movement relative thereto, c. a protective guard assembly for said trimmer unit including a member for covering the cutting surface thereof, d. said movable cutter of said trimmer unit provided with a pair of spaced and parallel rows of cutting surfaces, the first surface arranged in a plane above the main cutter head and the second surface projecting outwardly of said casing, and e. means mounting said guard member for controlled movement between positions alternately covering or exposing said second cutting surface and including spring means attached to said casing and having portions connected to said guard member.
Claim 2
Dependent Claim
141 words
In an electric dry shaver, a. a casing having a main cutter head mounted thereon, b. a trimmer unit mounted on said casing adjacent said main cutter head and having a cutting surface formed by a stationary cutter and movable cutter mounted for movement relative thereto, c. a protective guard assembly for said trimmer unit including a member for covering the cutting surface thereof, d. said movable cutter of said trimmer unit provided with a pair of spaced and parallel rows of cutting surfaces, the first surface arranged in a plane above the main cutter head and the second surface projecting outwardly of said casing, and e. means mounting said guard member for controlled movement between positions alternately covering or exposing said second cutting surface and including spring means attached to said casing and having portions connected to said guard member.
Claim 3
Dependent Claim
42 words
The device of claim 1 wherein actuating means are provided for effecting and controlling movements of said guard member and include a control member slidably mounted on the outer surface of said casing having portions in camming engagement with said guard member.
Claim 4
Dependent Claim
43 words
The device of claim 2 wherein said control member comprises a slide member provided with portions extending into said casing and wherein said spring member includes detent means associated with said slide portions for detenting said slide in a plurality of moved positions.
Claim 5
Dependent Claim
143 words
In an electric dry shaver, a. a casing having a main cutter assembly, mounted thereon, b. a trimmer having a cutter assembly provided with a first cutting surface adjacent the main cutter head and a second cutting surface projecting outwardly of said casing, c. a guard assembly for said trimmer including a guard member on said casing to cover at least one of said cutting surfaces, d. means mounting said guard member for movement between first and second positions to alternately cover and expose said at least one cutting surface, e. said mounting means including a spring means secured to said casing and having portions connected to said guard member and f. an actuator slide on the surface of said casing having portions in camming engagement with said guard member for effecting movement of said guard member between said first and second positions.
Claim 6
Dependent Claim
143 words
In an electric dry shaver, a. a casing having a main cutter assembly, mounted thereon, b. a trimmer having a cutter assembly provided with a first cutting surface adjacent the main cutter head and a second cutting surface projecting outwardly of said casing, c. a guard assembly for said trimmer including a guard member on said casing to cover at least one of said cutting surfaces, d. means mounting said guard member for movement between first and second positions to alternately cover and expose said at least one cutting surface, e. said mounting means including a spring means secured to said casing and having portions connected to said guard member and f. an actuator slide on the surface of said casing having portions in camming engagement with said guard member for effecting movement of said guard member between said first and second positions.
Claim 7
Dependent Claim
56 words
The device of claim 4 wherein said spring means including a spring member having spaced resilient arms secured to said guard member and adapted to assist in movement of said guard member between said first and second positions and wherein said spring member further includes portions for detenting said slide member in each of said positions.
Claim 8
Dependent Claim
40 words
The device of claim 5 wherein said spring member comprise a spring of a W-shaped configuration the opposite arms of said spring connected to said guard member and the central bight portion of said spring connected to said shaver casing.
Claim 9
Dependent Claim
28 words
The device of claim 6 wherein said detents means are provided adjacent said bight portion for detenting said slide member in said first and second positions of movement.
Claim 10
Dependent Claim
49 words
The device of claim 4 wherein said slide member is provided with a pair of projections on one surface thereof, slot means provided in said casing for receiving said projections and detent means formed on said spring member for detenting said projections in moved positions of said slide means.
Claim 11
Dependent Claim
43 words
The device of claim 8 wherein said spring means include a spring member provided with leaf spring arms connected to said guard member for mounting said guard member and assisting in the movement of said guard member between said first and second positions.
Claim 12
Dependent Claim
106 words
In an electric dry shaver, a. a casing having a main cutter head, b. a trimmer unit having an elongated stationary cutter and a movable cutter movably mounted in shearing relation thereto, c. means for mounting said trimmer unit adjacent said main cutter head, d. a guard assembly for said trimmer unit and including an elongated member mounted for pivotal movement on said casing over said trimmer unit between spaced positions alternately covering and exposing the cutting surface to prevent hair entry thereto, and e. actuating means on the casing interconnected to said guard assembly operable for selectively moving the guard member between said spaced positions.
Claim 13
Dependent Claim
106 words
In an electric dry shaver, a. a casing having a main cutter head, b. a trimmer unit having an elongated stationary cutter and a movable cutter movably mounted in shearing relation thereto, c. means for mounting said trimmer unit adjacent said main cutter head, d. a guard assembly for said trimmer unit and including an elongated member mounted for pivotal movement on said casing over said trimmer unit between spaced positions alternately covering and exposing the cutting surface to prevent hair entry thereto, and e. actuating means on the casing interconnected to said guard assembly operable for selectively moving the guard member between said spaced positions.
Claim 14
Dependent Claim
73 words
The shaver of claim 10 wherein said movable cutter of said trimmer unit is provided with a pair of spaced and parallel rows of cutting surfaces, a first cutting surface of said pair of surfaces is arranged adjacent the main cutter head and a second cutting surface of said pair of surfaces projecting outwardly of the casing and wherein said guard member is adapted to alternately cover or expose said second cutting surface.
Claim 15
Dependent Claim
36 words
The shaver of claim 11 wherein said actuating means for moving said guard member include a control member slidably mounted on the outer surface of the casing having portions in camming engagement with said guard member.
Claim 16
Dependent Claim
58 words
The shaver of claim 12 wherein said control member comprises a slide member provided with portions extending into said casing and wherein spring means are provided having a portion secured to the casing and to the guard member and detent means associated with the slide member portions for detenting the slide member in a plurality of moved positions.
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) | 1981-02-20 | 1981-08-22 | 1982-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-20 | 1985-08-22 | 1986-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-20 | 1989-08-22 | 1990-02-21 | $7700.00 | Window Closed / Lapsed |