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US 4,534,486 AGranted
Cover plate fastening device
OwnerLawrence E. Eidsoninventor
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OwnerLawrence E. Eidsoninventor
Estimating the term…
A fastener for connecting a cover plate to an electrical box housing comprises a prong secured to a base which is attached to the rear face of the cover plate. The fastener comprises a prong having a compressible, radially expanded portion which is received within an aperture formed in the electrical box housing. The expanded portion is resiliently urged toward a radial dimension exceeding the diameter of the aperture so that the prong can be tightly engaged within a bore or behind an aperture in a plate. The fastener can be easily attached to previously known cover plates by glueing, welding, or the like. However, the preferred construction of the fastener comprises a filiform element bent to form a planar base and a prong extending substantially perpendicular to the base, and wherein the base is secured to the rear face of the cover plate.
A snap-on cover for electrical boxes having at least one aperture adapted to threadably engage a threaded fastener, said cover comprising;
The combination of an electrical box housing having at least one housing aperture adapted to threadably engage a fastener, and a cover plate having at least one plate aperture registering with said at least one housing aperture, the improvement comprising,
A fastener for detachably securing a substantially flat cover plate to an electrical box housing, the cover plate having a face surface and a rear surface the housing having at least one outwardly opening aperture, said fastener comprising:
Dependencies are inferred from the claim text.