H - Electricity – 02 – G
Patent
H - Electricity
02
G
347/14
H02G 3/12 (2006.01) F16B 5/06 (2006.01)
Patent
CA 1105121
HOLDER ARRANGEMENT FOR ELECTRICAL WIRING BOXES Abstract of the Disclosure An electrical wiring box holder arrangement for screwless mounting of the box in wallboard, in a box receiving opening formed in the wallboard for that purpose, in which E shaped holder members are consecutively applied to opposite sides of the box, with the center legs each having a hooked end portion that is seated against the respective box side edges, and the end legs are pulled outwardly of the box to seat the holder back portion against the back of the box to mount the box in place. The holder legs and back portion are specifically shaped so that, as to each holder member, its center leg and member back portion aligned therewith in application are reshaped to define a centrally located dihedral wall bracing structure that acts in the nature of a girder on being wedged between the side of the box and the wallboard back face, with the box being firmly gripped between the resulting dihedral wall bracing structures of the respective holder members when installation is completed. The dihedral wall bracing structure improves over prior art holders by providing a girder like resistance to bending or deflection, even though the holder member itself in unapplied form is of one piece relatively flat sheet metal construction whereby dislodgement and/or unintended pulling of the holder in its entirity through the space between the box side wall and the wallboard opening are resisted.
314143
Macrae & Co.
Raco Inc.
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