← Back to Patent Explorer
US4952755A Expired / Lapsed US ⏱️ 0.0 years remaining

Safety plate for electrical outlet

Assignee: Individual
•
Filing: 1989-07-11
•
Granted: 1990-08-28
•
Expires: 2009-07-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A safety plate for electrical outlets includes a cover plate having apertures therein for receiving the prongs of an electrical plug. A pair of slidable panels also having apertures for the prongs of a plug, are mounted to the back of the cover plate, and are held in place by a back plate. The back plate has a pair of holes therethrough corresponding to the receptacles of an electrical wall outlet, so as to allow a close fit between the receptacles and the slidable panels. A spring biases the panels so as to misalign the panel apertures with the cover plate apertures, such that there is no direct opening between the cover plate apertures and the receptacle apertures. A tab projects from each slidable panel through an opening in the side of the cover plate, to allow the user to push each independent panel against the bias of the spring and align the panel apertures with the cover plate apertures, and thereby allow insertion of an electrical plug therethrough into the receptacle apertures. A gasket along the back perimeter of the cover plate seals any air leaks.

Inventors

  • 👤 Stephen M. Engel
  • 👤 Wallace W. Weiger

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 03:32
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/44; H01R13/447

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 257 words
A safety cover plate for an electrical wall outlet of the type having a pair of receptacles, each receptacle having apertures therein for receiving the prongs of an electrical plug, comprising: a cover plate having apertures therein corresponding to the apertures in said receptacles, for receiving the prongs of an electrical plug, said apertures located so as to be aligned with receptacle apertures when the cover plate is fastened to a wall outlet; said cover plate having a front surface, rearward surface, and a rearwardly projecting lip extending around the perimeter thereof; the rearward surface of said cover plate having a pair of depressions therein for receiving slidable panels and a biasing means, the depressions surrounding the apertures in said cover plate; a pair of panels slidably mounted for horizontal movement in the depressions in said cover plate; each said panel having a tab projecting from one end thereof; said cover plate further including a pair of spaced-apart notches formed through a portion of said lip, oriented to slidably receive said tabs; said panels having apertures therein corresponding to the apertures in said cover plate; said panels mounted for slidable movement between an operable position wherein the panel apertures are aligned with the cover plate apertures, and a storage position wherein said panel apertures are misaligned from the cover plate apertures; biasing means connected to the rearward surface of said cover plate adapted to bias said panels from their operable position to their storage position; and means for removably attaching said cover plate to a conventional outlet.
Claim 2
Dependent Claim 257 words
A safety cover plate for an electrical wall outlet of the type having a pair of receptacles, each receptacle having apertures therein for receiving the prongs of an electrical plug, comprising: a cover plate having apertures therein corresponding to the apertures in said receptacles, for receiving the prongs of an electrical plug, said apertures located so as to be aligned with receptacle apertures when the cover plate is fastened to a wall outlet; said cover plate having a front surface, rearward surface, and a rearwardly projecting lip extending around the perimeter thereof; the rearward surface of said cover plate having a pair of depressions therein for receiving slidable panels and a biasing means, the depressions surrounding the apertures in said cover plate; a pair of panels slidably mounted for horizontal movement in the depressions in said cover plate; each said panel having a tab projecting from one end thereof; said cover plate further including a pair of spaced-apart notches formed through a portion of said lip, oriented to slidably receive said tabs; said panels having apertures therein corresponding to the apertures in said cover plate; said panels mounted for slidable movement between an operable position wherein the panel apertures are aligned with the cover plate apertures, and a storage position wherein said panel apertures are misaligned from the cover plate apertures; biasing means connected to the rearward surface of said cover plate adapted to bias said panels from their operable position to their storage position; and means for removably attaching said cover plate to a conventional outlet.
Claim 3
Dependent Claim 64 words
The cover plate of claim 1, further comprising a back plate having a pair of holes therethrough corresponding with said outlet receptacles and oriented to receive said receptacles when the cover plate is attached to the outlet, said back plate fastened to the rearward surface of said cover plate, and enclosing said slidable panels and biasing means with said depressions in the cover plate.
Claim 4
Dependent Claim 54 words
The safety plate of claim 1, wherein said biasing means is a spring means having upper and lower ends, the upper end being positioned to bias against one side edge of the upper slidable panel, and said spring means lower end being positioned to bias against one side edge of the lower slidable panel.
Claim 5
Dependent Claim 61 words
The safety plate of claim 3, wherein said biased side edge of said panels is arcuate, and wherein the upper and lower ends of said springs means are bent arcuate in the opposite direction of said panel arcuate portions, such that an arcuate portion of the spring abuts the arcuate portion of the panel throughout the slidable extent of said panels.
Claim 6
Dependent Claim 33 words
The safety panel of claim 3, wherein said spring means includes an upper half and a lower half, said spring means being mounted for independent biasing of said upper and lower spring halves.

References Cited (Backward Citations)

US2477803A Cited
US2710382A Cited
US3068442A Cited
US3222631A Cited
US3865456A Cited
FR2256558A1 Cited
US4094569A Cited
US4600258A Cited
US4640564A Cited
US4798916A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-08-27 1994-02-26 1994-08-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-08-27 1998-02-26 1998-08-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-08-27 2002-02-26 2002-08-28 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag