US4886465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical outlet protective cover
Assignee: Individual
•
Filing: 1988-06-09
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Granted: 1989-12-12
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Expires: 2008-06-09
Abstract
Abstract An electrical outlet protective cover 10 is described for mounting to ungrounded or grounded electrical outlet receptacles for preventing a child from inserting a foreign object into the receptacle or from inserting an electrical plug. The cover 10 has a back plate 52 with receptacle apertures 68, 70 for receiving the receptacle. The cover has a front panel 54 substantially forward of the back plate 52 forming shutter cavities 56 therebetween. Shutters 60, 62 are slidably mounted in the cavities 56 for horizontal movement between offset positions and aligned positions. Each of the shutters 60,62 have slots or apertures 88, 90, 92 for receiving corresponding electrical plug progngs. The slots 88 and 90 are of an enlarged size to accommodate ungrounded prongs or grounded prongs. The cover 10 has plug passageways 76 and 78 aligned with the receptacle apertures 68 and 70 respectively for preventing a child from touching the prongs when a plug is being inserted into a receptacle. To insert a plug, one must first insert the prongs of the plug into the shutter slots while the shutter is in the offset position. Then lateral force must be exerted on the plug to move the shutter from the offset position to the aligned position. When the shutter is moved to the aligned position, the plug is clear to be inserted into the passageway 76, 78 and into the receptacle.
Inventors
- 👤 Mark E. Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:53
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/44; H01R13/447; H01R13/453; H01R13/4534
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
271 words
An electrical outlet protective cover for preventing one from directly inserting an electrical plug into a receptacle of an electrical outlet on which the cover is mounted, in which the electrical plug has at least two electrical prongs extending a prescribed length from a plug base to prong ends, comprising: a plate body for mounting to the electrical outlet having (1) a back panel having a back surface adapted to engage a wall surrounding an outlet and further having a receptacle aperture extending through the back panel for receiving a receptacle therein, (2) a front panel having a front surface spaced outward from the back panel and (3) a plug passageway formed therein extending between the front surface and the receptacle aperture for receiving the electrical plug therein; a prong shutter mounted to the plate body for transverse sliding movement in the plug passageway between an aligned position and an offset position; said prong shutter having prong apertures formed therein for receiving the plug prongs to prevent the plug prongs from being inserted into the receptacle when the shutter is in the offset position and to permit the plug prongs being inserted into the receptacle when the shutter is in the aligned position; and wherein the plug passageway has a length extending between the front surface and the back surface approximating the length of the plug prongs and providing a barrier at the front surface adjacent to the plug passageway for preventing further insertion of a plug when the shutter is in the offset position; and visual indicator means for visually indicating when the prong shutter is in the aligned position.
Claim 2
Dependent Claim
271 words
An electrical outlet protective cover for preventing one from directly inserting an electrical plug into a receptacle of an electrical outlet on which the cover is mounted, in which the electrical plug has at least two electrical prongs extending a prescribed length from a plug base to prong ends, comprising: a plate body for mounting to the electrical outlet having (1) a back panel having a back surface adapted to engage a wall surrounding an outlet and further having a receptacle aperture extending through the back panel for receiving a receptacle therein, (2) a front panel having a front surface spaced outward from the back panel and (3) a plug passageway formed therein extending between the front surface and the receptacle aperture for receiving the electrical plug therein; a prong shutter mounted to the plate body for transverse sliding movement in the plug passageway between an aligned position and an offset position; said prong shutter having prong apertures formed therein for receiving the plug prongs to prevent the plug prongs from being inserted into the receptacle when the shutter is in the offset position and to permit the plug prongs being inserted into the receptacle when the shutter is in the aligned position; and wherein the plug passageway has a length extending between the front surface and the back surface approximating the length of the plug prongs and providing a barrier at the front surface adjacent to the plug passageway for preventing further insertion of a plug when the shutter is in the offset position; and visual indicator means for visually indicating when the prong shutter is in the aligned position.
Claim 3
Dependent Claim
56 words
The electrical outlet protective cover as defined in claim 1 wherein the maximum cross-section dimension of the plug passageway is slightly greater than a maximum cross-sectional dimension of the plug to restrict a person from touching the plug prongs while the prongs are being inserted into the receptacle when the shutter is in the aligned position.
Claim 4
Dependent Claim
22 words
The electrical outlet protective cover as defined in claim 1 further comprising: means for biasing the prong shutter to the offset position.
Claim 5
Dependent Claim
196 words
An electrical outlet protective cover for preventing one from directly inserting an electrical plug into a receptacle of an electrical outlet on which the cover is mounted, in which the electrical plug has at least two electrical prongs extending a prescribed length from a plug base to prong ends, comprising: a plate body for mounting to the electrical outlet having (1) a rear panel with a receptacle aperture for receiving a receptacle therein, (2) a front surface spaced outward from the rear panel and (3) a plug passageway formed therein extending between the front surface and the receptacle aperture for receiving the electrical plug therein; a prong shutter mounted to the plate body for transverse sliding movement in the plug passageway between an aligned position and a offset position; said prong shutter having prong apertures formed therein for receiving the plug prongs to prevent the plug prongs from being inserted into the receptacle when the shutter is in the offset position and to permit the plug prongs being inserted into the receptacle when the shutter is in the aligned position; and visual indicator means for visually indicating when the prong shutter is in the aligned position.
Claim 6
Dependent Claim
196 words
An electrical outlet protective cover for preventing one from directly inserting an electrical plug into a receptacle of an electrical outlet on which the cover is mounted, in which the electrical plug has at least two electrical prongs extending a prescribed length from a plug base to prong ends, comprising: a plate body for mounting to the electrical outlet having (1) a rear panel with a receptacle aperture for receiving a receptacle therein, (2) a front surface spaced outward from the rear panel and (3) a plug passageway formed therein extending between the front surface and the receptacle aperture for receiving the electrical plug therein; a prong shutter mounted to the plate body for transverse sliding movement in the plug passageway between an aligned position and a offset position; said prong shutter having prong apertures formed therein for receiving the plug prongs to prevent the plug prongs from being inserted into the receptacle when the shutter is in the offset position and to permit the plug prongs being inserted into the receptacle when the shutter is in the aligned position; and visual indicator means for visually indicating when the prong shutter is in the aligned position.
Claim 7
Dependent Claim
23 words
The electrical outlet protective cover as defined in claim 4 further comprising: locking means for releasably locking the shutter in the offset position.
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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) | 1992-12-11 | 1993-06-12 | 1993-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-11 | 1997-06-12 | 1997-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-11 | 2001-06-12 | 2001-12-12 | $7700.00 | Window Closed / Lapsed |