Clamp for securing bar hanger to electrical wiring box

Details Clamp for securing bar hanger to electrical wiring box Clamp for securing bar hanger to electrical wiring box

1976-10-06

1977-12-13

Mitchell, James C.

Supports

Brackets

Article holding means

174 63, 220 39, 248DIG6, A47F 500

Patent

active

040625125

ABSTRACT:
A clamp for securing an adjustable bar hanger to a molded thermosetting plastic electrical wiring box. The clamp includes a generally U-shaped portion having a deformable tab directed into the region defined by the U-shaped portion, a first pair of spaced-apart L-shaped positioning tabs at one side of the U-shaped portion, and a flange extending outwardly from the other side of the U-shaped portion. A bar hanger is positioned within the U-shaped portion of the clamp, and the wiring box is oriented with respect to the clamp and bar hanger assembly so that the pair of L-shaped positioning tabs can be readily inserted within a corresponding pair of spaced-apart slots formed in a rear wall of the wiring box. The wiring box is then pivoted with respect to the clamp so that the bar hanger is captured between the clamp and the rear wall of the wiring box with the clamp being spaced a slight distance from the rear wall of the wiring box. A metal screw is then inserted through a screw-receiving opening in the rear wall of the wiring box and threaded into a corresponding threaded opening in the flange of the clamp. As the screw advances into the opening in the flange, the clamp is drawn toward the wiring box, causing the tab of the U-shaped portion to deform and move in a direction away from the wiring box and toward the U-shaped portion. The deformation of the tab serves to distribute the torque or energy applied to the screw in a manner so as to prevent damage to the wiring box, such as cracking or shattering.

REFERENCES:
patent: 1777291 (1930-10-01), Clayton
patent: 1798838 (1931-03-01), Garvin
patent: 2758810 (1956-08-01), Good
patent: 3528636 (1970-09-01), Schmidt

Affiliated with

Also associated with

Rating

Clamp for securing bar hanger to electrical wiring box does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Clamp for securing bar hanger to electrical wiring box, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clamp for securing bar hanger to electrical wiring box will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-485802