Enclosed switchboard

Details Enclosed switchboard Enclosed switchboard

1979-11-28

1981-06-23

Lowrance, George E.

Receptacles

Sectional

Knockdown

220 84, 312108, 312257SK, 312257, B65D 628, A47B 5500

Patent

active

042745470

ABSTRACT:
In an enclosed switchboard, each of side plates is provided, along both edges thereof, with vertically extending ribs having a U-shaped cross section protruding toward the confronting side plate. Connecting members for connecting the side plates are formed to fit in U-shaped cutaway portions provided at the upper and the lower ends of the ribs. A vertically extending opening is provided in the side plate to permit ventilation and wirings through the side plate.

REFERENCES:
patent: 2042848 (1936-06-01), Horn
patent: 2196399 (1940-04-01), Rubel
patent: 2686704 (1954-08-01), Wolters
patent: 2727800 (1955-12-01), Snider
patent: 3056639 (1962-10-01), Caminker
patent: 3192306 (1965-06-01), Skonnord

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