Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1976-03-12
1978-08-29
Miller, Edward A.
Electricity: circuit makers and breakers
Liquid contact
Time delay
74568R, 200153L, 200153LB, 250414, 250510, 350315, H01H 342, H01H 316
Patent
active
041105818
ABSTRACT:
A device for detecting the absence or improper positioning of detachable elements in their supports comprises a system for monitoring the fitting in position of selected elements on a mounting plate provided at its periphery with slots, these slots being associated with obturating-studs. These studs are retractable from the corresponding slots when a corresponding detachable element is appropriately positioned in the mounting plate which is immobilized by means of a safety locking system comprising an index which can be introduced into this corresponding slot after the retraction of the obturating-stud from it, this index enabling to actuate a safety electrical switch.
REFERENCES:
patent: 1989803 (1935-02-01), Hoben
patent: 2462302 (1949-02-01), Bolsey
patent: 3045506 (1962-07-01), Glasgow
patent: 3267767 (1966-08-01), Neal
patent: 3539736 (1970-11-01), Naimer
patent: 3721826 (1973-03-01), Thomas
patent: 3743799 (1973-07-01), Cork et al.
patent: 3854049 (1974-12-01), Mistretta et al.
patent: 4018151 (1977-04-01), Urban et al.
"C.G.R. MeV"
Miller Edward A.
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