Relay combination

Details Relay combination Relay combination

1986-09-23

1988-02-09

Hix, L. T.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

For relays or solenoids

361189, 361192, H01H 4700, H01H 900

Patent

active

047245050

ABSTRACT:
A relay combination includes a first relay having a first double throw contact set including a first normally closed contact, a first normally open contact and a first armature for contacting the first normally open and closed contacts. A first armature coil manipulates the first armature. A second relay includes a second double throw contact set including a second normally closed contact, a second normally open contact and a second armature for contacting the second normally open and closed contacts. A conductor conducts an alternating current signal to the first and second normally closed contacts. The first and second armatures are electrically coupled to one another through a conductor electrically isolated from the first and second normally closed contacts. A latching circuit is included comprising first and second input circuits for latching the first relay upon receiving a signal on the first input circuit and latching the second relay upon receiving a signal on the input circuit.

REFERENCES:
patent: 3581157 (1971-05-01), Hall
patent: 4134050 (1979-01-01), Sibalis
Joseph Benish and Alva L. Sweet, Alternating Current Relay Circuit, U.S. Patent Office Official Gazette, 7/12/49, p. 637.

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