Enclosure sealing well construction

Details Enclosure sealing well construction Enclosure sealing well construction

1981-09-24

1983-09-20

Grimley, A. T.

Electricity: conductors and insulators

Boxes and housings

With electrical device

174 52S, 200302, H05K 506

Patent

active

044058268

ABSTRACT:
An electrical equipment enclosure sealing well construction includes a cup-like sealing well including at at least one end thereof an integrally formed, hollow socket with its bore communicating with the interior of the sealing well and with an insulating molded terminal block mounted externally of the sealing well. The terminal block contains a channel for receiving a conductive lead which has been previously attached to a terminal having a threaded aperture. The channel is apertured at its lower end to receive the stem of a terminal screw and clamp assembly threadingly engageable with the threaded aperture of the terminal. An insulating hinged cover may be formed as an integral part of the molded terminal block.

REFERENCES:
patent: 2240922 (1941-05-01), Bissell
patent: 2321508 (1943-06-01), Olley et al.
patent: 2345757 (1944-04-01), Lester
patent: 3288910 (1966-11-01), Zerwes
patent: 3385945 (1968-05-01), Tums
patent: 3392228 (1968-07-01), Zerwes
patent: 3927249 (1975-12-01), Pearse
patent: 4246437 (1981-01-01), Frey et al.
Publication 800H-1.0--Apr. 1980, entitled, "Bulletin 800H NEMA Type 7&9 Hazardous Location Push Button Controls".

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