Electricity: conductors and insulators – Boxes and housings – With electrical device
Patent
1975-10-14
1977-03-15
Truhe, J. V.
Electricity: conductors and insulators
Boxes and housings
With electrical device
220 32, H02G 308
Patent
active
040125807
ABSTRACT:
An electrical wiring box having a pair of mounting elements associated therewith for permitting the quick and easy mounting of an electrical device within the wiring box. The wiring box includes first and second mounting portions each having a central opening and a pair of slots on opposite sides of the central opening. Each of the mounting elements includes a screw-receiving section adapted to be inserted into the central opening of a corresponding one of the mounting portions of the wiring box, and a pair of locking tabs adapted to be inserted into the pair of slots in the corresponding one of the mounting portions for attaching the mounting element to the wiring box and for properly positioning the screw-receiving section within its corresponding central opening. Each of the screw-receiving sections includes three thread-engaging members arranged to define a screw-receiving region therebetween and each having a deflectible thread-engaging tip directed into the screw-receiving region.
An electrical device is mounted within the wiring box by simply pushing associated screws into the screw-receiving sections of the mounting elements, whereby the thread-engaging tips of the screw-receiving sections are caused to be deflected outwardly. When each of the screws has been completely inserted into its associated screw-receiving section, the thread-engaging tips of the section come to rest in three different regions between threads of the screw, thereby firmly gripping onto the screw.
The mounting elements further include flat portions connected with the screw-receiving sections and the locking tabs and having openings therein for mounting the wiring box to a supporting structure such as wallboard or panelling.
REFERENCES:
patent: 3575313 (1971-04-01), Trachtenberg et al.
patent: 3876821 (1975-04-01), Pringle
patent: 3895732 (1975-07-01), Robinson et al.
Nealon Elmer J.
O'Malley Norman J.
Tone D. A.
Truhe J. V.
Union Insulating Company
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