Supports – Brackets – Specially mounted or attached
Patent
1990-10-25
1991-11-19
Foss, J. Franklin
Supports
Brackets
Specially mounted or attached
174 58, 220 39, 248906, A47B 9606
Patent
active
050659685
ABSTRACT:
An electrical box is formed with an elongated channel in its back surface and brackets straddling the channel. The elongated U-shaped part of a hanger bar is inserted through the brackets and in the channel and is retained by a transverse rib which frictionally engages the hanger bar. Nail-receiving ears are provided on the sides of the box.
REFERENCES:
patent: 1754849 (1930-04-01), Clayton
patent: 3176869 (1965-04-01), Kinney
patent: 3215831 (1965-11-01), Gladsden
patent: 3606223 (1971-09-01), Havener
patent: 3913773 (1975-10-01), Copp
patent: 3926330 (1975-12-01), Deming
patent: 4062470 (1977-12-01), Boteler
patent: 4165851 (1979-08-01), Bowden
patent: 4194644 (1980-03-01), Narvaez
patent: 4712157 (1987-12-01), Simonson
Kesler Gregory J.
Schnell Kenneth R.
'Hubbell Incorporated
Farley Walter C.
Foss J. Franklin
Presson Jerry M.
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