Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Step-by-step type (e.g. – closure responsive to predetermined...
Patent
1984-12-21
1987-01-13
Gellner, Michael L.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Step-by-step type (e.g., closure responsive to predetermined...
74 21, H01H 5108
Patent
active
046367616
ABSTRACT:
A fail-safe solenoid switching mechanism (11) uses a reciprocating switch (15) to establish make-or-break connections. In order to increase the effective life of shorting bars on the switch, the switch's reciprocating part 23 is rotated by a ratcheting mechanism each time the switch (15) is cycled.
Advantages include enhanced reliability, even when the switching mechanism (11) sees extended quiescant periods between operations.
REFERENCES:
patent: 516063 (1894-03-01), Pendergrass et al.
patent: 1789275 (1931-01-01), Howe
patent: 3223802 (1965-12-01), Horst
patent: 3605050 (1971-09-01), Goldman et al.
patent: 4331845 (1982-05-01), Caruso
Caruso Peter J.
Townsend Robert R.
Allied Corporation
Brown Brian W.
Gellner Michael L.
Massung Howard
Protigal Stan
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