Electricity: circuit makers and breakers – Retarded – Clock train
Patent
1989-03-29
1990-10-09
Scott, J. R.
Electricity: circuit makers and breakers
Retarded
Clock train
200 38B, 361426, 361428, 439189, H01H 4310, H01H 158, H01R 900, H01R 2900
Patent
active
049622889
ABSTRACT:
An electromechanical timer includes a motor-driven cam and electrical switches responsive to the cam supported in a housing. An array of rows and columns of electrical terminals are connected to the switches and extend from one end of the housing. First electrical busses of corrugated form fit into similarly shaped channels parallel to each row or column of terminals the corrugations being arranged so that the portions of the busses between the terminals is closer to a line passing through the row or column of terminals than the portion adjacent the terminals. Second C-shaped second busses fit into similarly shaped channels between the first busses and the terminals to connect the terminals to each other. The corrugated shape of the first channels and the C-shape of the second channels result in the air paths between a first bus and an adjacent terminal is not connected to it being three or more times as long as the straight-line distance between them.
REFERENCES:
patent: 3390243 (1968-06-01), Obermann
patent: 3771102 (1973-11-01), Murray et al.
patent: 3809831 (1974-05-01), Godwin et al.
patent: 4517426 (1985-05-01), Edwards et al.
patent: 4567654 (1986-02-01), Kloenne et al.
Emhart Industries Inc.
Murphy Edward D.
Scott J. R.
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