Patent US3320573A successfully refreshed from Google Patents.
US4454401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety extension lever for wall switch
Assignee: Individual
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Filing: 1982-09-13
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Granted: 1984-06-12
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Expires: 2002-09-13
Abstract
Abstract A modified wall plate for a standard toggle switch outlet is equipped with an arm or lever adapted to slide on the plate. The arm or lever is provided with a hollowed protuberance extending outwardly from the front face of the arm and arranged to receive and enclose the actuating finger of a standard toggle switch when the modified wall plate is attached at an existing wall outlet for the switch. The arm or lever is equipped with a detachable rod extending to a substantial distance below the bottom of the wall plate to a level within reach of a small child, thus enabled to safely operate the switch.
Inventors
- 👤 George S. Powis, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:57
CPC Classifications
H; H01; H01H; H01H23/00; H01H23/02; H01H23/12; H01H23/14; H01H23/141
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
285 words
A device for operation of an electric wall switch of the toggle type, comprising: a modified wall plate attachable to an existing toggle switch outlet, said modified plate having an actuating arm or lever slidably mounted within the plate, said arm or lever being provided with an outwardly extending hollow protuberance adapted to overlie and enclose within said hollow the actuating finger of a toggle switch extending outwardly from a wall, said arm or lever having a rod member extending for a desired substantial distance below the bottom edge of the wall plate; said modified wall plate comprising a U-shaped frame formed by upstanding arms and a base forming a vertical slot, upper and lower horizontal cross bars traversing said slot and forming a window frame, narrow fins extending inwardly of said window frame at the front face of said modified wall plate; said arm or lever having an intermediate slide plate abutting said hollow protuberance and arranged to slide on the inner surface of said fins, said arm or lever further having upper and lower slide plates respectively above and below said intermediate slide plate and spaced outwardly therefrom, said intermediate slide plate being on the rear face of said actuating arm and said upper and lower slide plates being on the front face of said arm thereby providing a narrow space between the rear faces of said upper and lower slide plates and the opposed face of said intermediate slide plate at the upper and lower edges of said intermediate slide plate, whereby said upper and lower slide plates are adapted to ride on the outer surface of said modified wall plate during sliding of said arm or lever in the vertical slot.
Claim 2
Independent Claim
285 words
A device for operation of an electric wall switch of the toggle type, comprising: a modified wall plate attachable to an existing toggle switch outlet, said modified plate having an actuating arm or lever slidably mounted within the plate, said arm or lever being provided with an outwardly extending hollow protuberance adapted to overlie and enclose within said hollow the actuating finger of a toggle switch extending outwardly from a wall, said arm or lever having a rod member extending for a desired substantial distance below the bottom edge of the wall plate; said modified wall plate comprising a U-shaped frame formed by upstanding arms and a base forming a vertical slot, upper and lower horizontal cross bars traversing said slot and forming a window frame, narrow fins extending inwardly of said window frame at the front face of said modified wall plate; said arm or lever having an intermediate slide plate abutting said hollow protuberance and arranged to slide on the inner surface of said fins, said arm or lever further having upper and lower slide plates respectively above and below said intermediate slide plate and spaced outwardly therefrom, said intermediate slide plate being on the rear face of said actuating arm and said upper and lower slide plates being on the front face of said arm thereby providing a narrow space between the rear faces of said upper and lower slide plates and the opposed face of said intermediate slide plate at the upper and lower edges of said intermediate slide plate, whereby said upper and lower slide plates are adapted to ride on the outer surface of said modified wall plate during sliding of said arm or lever in the vertical slot.
Claim 3
Dependent Claim
65 words
A device as defined in claim 1 wherein said upper and lower cross bars are spaced to aline with the screw threaded holes in the switch mounting plate of a standard toggle switch and screw receiving holes are provided in said cross bars for reception of headed screws enabling attachment of said modified wall plate to the switch mounting plate of a standard toggle switch.
Claim 4
Dependent Claim
43 words
A device as defined in claim 2 wherein said upper and lower slide plates on said arm or lever are provided with circular openings through which headed attaching screws can be passed for engagement into the screw receiving holes of the cross bars.
Claim 5
Dependent Claim
40 words
A device as defined in claim 2 wherein said upper and lower slide plates are recessed in the area of said circular openings and are further provided with fillets removably fitted into said recessed area and covering said circular openings.
Claim 6
Dependent Claim
36 words
A device as defined in claim 1 wherein said upper slide plate is provided with an inwardly extending rectangular boss, adapted to contact said upper cross bar to limit downward movement of said arm or lever.
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) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |