US4882458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switch device for activating and deactivating an electrically operated driving member of an appliance
Assignee: Braun GmbH
•
Filing: 1988-08-02
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Granted: 1989-11-21
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Expires: 2008-08-02
Abstract
Abstract An appliance switch for an electric shaver is equipped with a safety device guarding against accidental operation, which device is slidable coplanar with the appliance switch, is arranged in a housing and is equipped with positive engagement members which are adapted to be slipped over a latch member of the appliance switch and prevent the latch member from being movable out of its locking position. In this manner, a reliable safeguard is provided preventing accidental operation of the shaver.
Inventors
- 👤 Anette Berg
- 👤 Gunter Hoffmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:04
CPC Classifications
H; H01; H01H; H01H3/00; H01H3/02; H01H3/20
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
97 words
A switch device for an appliance for personal use, comprising an appliance switch actuator movable along a straight line path for activating and deactivating a driving member capable of being electrically operated in a housing of the appliance, as well as a locking device movable in a path parallel to said path of movement of said appliance switch actuator into the actuation path of the appliance switch actuator, said appliance switch actuator and said locking device including engagement means which are interengageable for securing said appliance switch actuator relative to said locking device in the off position.
Claim 2
Dependent Claim
97 words
A switch device for an appliance for personal use, comprising an appliance switch actuator movable along a straight line path for activating and deactivating a driving member capable of being electrically operated in a housing of the appliance, as well as a locking device movable in a path parallel to said path of movement of said appliance switch actuator into the actuation path of the appliance switch actuator, said appliance switch actuator and said locking device including engagement means which are interengageable for securing said appliance switch actuator relative to said locking device in the off position.
Claim 3
Dependent Claim
47 words
A switch device as claimed in claim 1 and further including backing structure that includes at least one locking member and wherein said appliance switch actuator includes at least one positive engagement means which is maintained in a predetermined switch position by means of said locking member.
Claim 4
Dependent Claim
29 words
A switch device as claimed in claim 1 and further including backing structure and wherein said locking device includes latch members displaceable into notches provided on said backing member.
Claim 5
Dependent Claim
35 words
A switch device as claimed in claim 2 wherein said positive engagement means of said appliance switch actuator is an L-shaped resilient latch member that has a leg and a knob formed on said leg.
Claim 6
Dependent Claim
39 words
A switch device as claimed in claim 2 wherein said positive engagement means (80) of said appliance switch actuator is a U-shaped latch member that has two elastic legs and a knob formed on each of its elastic legs.
Claim 7
Dependent Claim
28 words
A switch device as claimed in claim 2 wherein said positive engagement means (86) of said appliance switch (12) is a boss formed on the appliance switch actuator.
Claim 8
Dependent Claim
28 words
A switch device as claimed in claim 2 wherein said locking member is formed of a web member situated between two oblong openings provided in said backing member.
Claim 9
Dependent Claim
20 words
A switch device as claimed in claim 2 wherein said locking member is a boss formed on said backing member.
Claim 10
Dependent Claim
42 words
A switch device as claimed in claim 2 wherein said locking member is a U-shaped latch member formed on said partition wall (16) that has two resilient legs and having a knob (35) formed on each of its resilient legs (82, 84).
Claim 11
Dependent Claim
36 words
A switch device as claimed in claim 2 wherein said locking device includes at least one frictional engagement means which is displaceable into the displacement path of said positive engagement means of the appliance switch actuator.
Claim 12
Dependent Claim
41 words
A switch device as claimed in claim 9 or claim 11 wherein said locking device includes at least one frictional engagement means which is displaceable into the displacement path of the resilient legs of the locking member of the partition wall.
Claim 13
Dependent Claim
37 words
A switch device as claimed in claim 10 wherein said frictional engagement means (44) is an L-shaped latch member which, in the off position of the appliance switch actuator is in engagement with its positive engagement means.
Claim 14
Dependent Claim
49 words
A switch device as claimed in claim 10 wherein said frictional engagement means is a U-shaped latch member that has two legs, said legs being in engagement with the legs of the positive engagement means of the appliance switch actuator in the off position of the appliance switch actuator.
Claim 15
Dependent Claim
33 words
A switch device as claimed in claim 10 wherein said frictional engagement means is a U-shaped latch member whose bar connecting the legs is slidable between the legs of the positive engagement means.
Claim 16
Dependent Claim
31 words
A switch device a claimed in claim 10 wherein said notches are formed in at least one of the longitudinal sides of the partition wall by means of projections formed thereon.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |