US4718856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety covers for electrical outlets (II)
Assignee: Individual
•
Filing: 1986-08-18
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Granted: 1988-01-12
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Expires: 2006-08-18
Abstract
Abstract A protective cover for restricting access to the female sockets or connectors of an electrical outlet, thereby protecting infants and small children and others of limited understanding against electrical shock. The cover includes a base plate bearing an externally threaded boss which replaces the conventional outlet cover; a safety cap of the push-and-twist type threaded on the boss; protective members which are clamped by the safety cap against the boss overlying the socket being protected to deny access to the socket, both when the socket is in use and when it is not in service; and a platelike shield which normally overlies, and denies access to, a second female socket of the typical double socket wall outlet. This shield can be swung aside after backing off the safety cap to furnish unprotected, but controlled, and typically temporary, access to that second female socket.
Inventors
- 👤 Michael B. Pinkerton
- 👤 David Moskowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:53
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/44; H01R13/447
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
218 words
A protective cover for an electrical outlet having first and second exposed female connectors, said cover including: a base plate which is adapted to fit over and be attached to said outlet, there being an aperture through said plate which is then aligned with said one of said female connectors and thereby allows a male connector to be plugged into that female connector; an externally threaded boss protruding outwardly from said base plate and surrounding said aperture; means which is or comprises an internally threaded safety cap adapted to be threaded onto said boss to prevent access to said female connector through said aperture, the external threads on said boss and the internal threads in said safety cap being so related that pressure must be exerted on said safety cap and said cap simultaneously rotated to engage said external and internal threads and allow said cap to be removed from said boss; and a protective shield which is dimensioned to overlie, and thereby deny access to, the second of said female connectors, said shield being journalled on said outwardly protruding boss between said base plate and said internally threaded safety cap and thereby being adapted to be clamped to said base plate by said cap to retain said protective shield in overlying relation to said second female connector.
Claim 2
Dependent Claim
218 words
A protective cover for an electrical outlet having first and second exposed female connectors, said cover including: a base plate which is adapted to fit over and be attached to said outlet, there being an aperture through said plate which is then aligned with said one of said female connectors and thereby allows a male connector to be plugged into that female connector; an externally threaded boss protruding outwardly from said base plate and surrounding said aperture; means which is or comprises an internally threaded safety cap adapted to be threaded onto said boss to prevent access to said female connector through said aperture, the external threads on said boss and the internal threads in said safety cap being so related that pressure must be exerted on said safety cap and said cap simultaneously rotated to engage said external and internal threads and allow said cap to be removed from said boss; and a protective shield which is dimensioned to overlie, and thereby deny access to, the second of said female connectors, said shield being journalled on said outwardly protruding boss between said base plate and said internally threaded safety cap and thereby being adapted to be clamped to said base plate by said cap to retain said protective shield in overlying relation to said second female connector.
Claim 3
Dependent Claim
80 words
A protective cover as defined in claim 1 which has matable pins and recesses for positively retaining said cover in the position overlying the second of the female connectors when said protective shield is clamped against said plate by said internally threaded safety cap, said recesses being formed in either the protective shield or the base plate of the protective cover and the pins being formed on and projecting from the other of the protective shield and base plate components.
Claim 4
Dependent Claim
91 words
A protective cover as defined in claim 1 wherein said safety cap has an opening in it through which a line cord and a male connector attached thereto can be routed and wherein said cap has an annular rim surrounding said aperture, the means for preventing access to the female connector also including a barrier component for blocking access to said female connector through said cap, said barrier device being configured to fit within said cap and to be trapped therein and against said boss by the flange of the cap.
Claim 5
Dependent Claim
169 words
A protective outlet cover as defined in claim 1 wherein said safety cap has an opening through which a line cord and a male plug attached thereto can be routed and an annular rim surrounding said opening, said protective outlet cover also including a component for precluding access to said female connector through the aperture in said cap, said component having an open-ended, circularly sectioned dome of resilient, flexible material and an annular rim integrated with said dome at the open end thereof, there being an opening of sufficient size to accommodate only a line cord in that end of the dome opposite said rim, said component being split from end-to-end to form a gap which can be enlarged to allow a line cord to be routed through the device, and said device being so dimensioned that said safety cap can be slipped over said dome and then threaded on said boss to trap the flange on said component between said boss and the flange on the safety cap.
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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) | 1991-01-11 | 1991-07-13 | 1992-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-11 | 1995-07-13 | 1996-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-11 | 1999-07-13 | 2000-01-12 | $7700.00 | Window Closed / Lapsed |