Electricity: conductors and insulators – Conduits – cables or conductors – Combined
Patent
1975-12-11
1976-06-01
Askin, Laramie E.
Electricity: conductors and insulators
Conduits, cables or conductors
Combined
317119, 339198N, H02B 120, H02G 500
Patent
active
039611299
ABSTRACT:
An electrical bussing and jumper assembly for use with electrical switching devices such as circuit breakers in a three-phase distribution system. The bussing and jumper assembly comprises three relatively-thin, wide bus plates stacked together in a compact sandwich-like array. Each of the plates has a plurality of openings therein defining a pair of parallel side portions and a plurality of jumper portions transverse to and bridging the side portions. The jumper portions of bus plates are variously concave (top bus plate), flat (center bus plate) and convex (bottom bus plate) and spaced from each other such that when the bus plates are stacked together, the jumper portions are arranged in a ladder-like array and central portions of the jumper portions are all in a common plane. The bus plates are insulated from each other by means of insulative coatings (e.g., of polyvinyl chloride) formed on the plates and also by means of sheets of insulative material (e.g., of polyethylene terephthalate) disposed between the coated bus plates and having openings therein. A comb of insulative material (e.g., of polypropylene) having portions extending through the openings in the bus plates and in the sheets of insulative material is also provided for insulating the jumper portions from each other. Switching devices for use in a current distribution system are attached to the jumper portions of the bus plates, using threaded openings provided in the jumper portions.
REFERENCES:
patent: 2632039 (1953-03-01), Hammerly et al.
patent: 2738446 (1956-03-01), Fleming
patent: 3588620 (1971-06-01), Wasileski
Gehrs Donald F.
Higgins David T.
Askin Laramie E.
Nealon Elmer J.
O'Malley Norman J.
Xiarhos Peter
Zinsco Electrical Products
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