Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1984-03-08
1985-11-12
Marcus, Stephen
Electricity: circuit makers and breakers
Liquid contact
Time delay
200157, 200 6B, 200 683, H01H 1308, H01H 906
Patent
active
045530050
ABSTRACT:
Variations of individual components are selectively assembled to satisfy specified switch characteristics and functions. A self-contained switching unit (2) comprises an actuator (8) mounted for linear reciprocal movement in a first housing (4) and having an end projecting through an end wall of the first housing, a return spring (52) biasing the actuator (8) to an extending position, and contactors (46, 48; 76, 78) positioned in pockets (8a, 8b) in the actuator (8) above and below the return spring (52) to be cammed in opposite lateral directions upon depression of the actuator (8) to bridge large-mass stationary contacts (28, 30; 32, 34, 36) positioned firmly against sidewalls of the first housing (4). Camming arrangements carry the contactors (46, 48; 76, 78) into bridging engagement with the stationary contacts (28, 30; 32, 34, 36) and render contact pressure springs (86, 90) operative after such engagement. Selected versions of the actuator (8) and a trigger (12) to be attached to the projecting end of the actuator accommodate a variable depression adjustment screw (10, 14). The stationary contacts include integral terminal portions (28a, 30a; 32a, 34a, 36a) extending through a lower side (6) of the first housing (4) for plug-in connection with press-in (20) or pressure type (40) wiring terminals contained in a second housing (18) when the latter is attached to the first housing (4). Selected speed control circuit boards (26) may be positioned within the second housing (18) for plug-in connection with the stationary contact terminal portions (34a, 36a) upon attachment of the second housing (18) to the first housing (4). Variations in heat sinks (24) are accommodated within the second housing (18).
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Cusick Ernest G.
Eaton Corporation
Grace C. H.
Marcus Stephen
Vande Zande L. G.
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