Fire resistant electrical junction boxes

Details Fire resistant electrical junction boxes Fire resistant electrical junction boxes

1984-11-16

1986-10-07

Grimley, Arthur T.

Electricity: conductors and insulators

Overhead

Towers, poles or posts

174 65R, H02G 308

Patent

active

046161040

ABSTRACT:
An electrical box designed to minimize the potential for sound, smoke or fire traveling therethrough when wall-mounted and has an interior rigid housing and a molded non-combustible exterior casing. The casing is a unitary, single-piece sheathing, having openings only for attachment of line conduit. A tubular collar portion extends outwardly from the front opening of the box, and is easily cut or machined to conform to the adjacent wall surface.

REFERENCES:
patent: 1814449 (1931-07-01), Morgenstern
patent: 2875915 (1959-03-01), Buckels
patent: 3995102 (1976-11-01), Kohaut
patent: 4087624 (1978-05-01), Hitchcock
patent: 4158420 (1979-06-01), Balkwill et al.
patent: 4413683 (1983-11-01), Hune

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