Electric strike for fail safe or fail secure operation
AssigneeAdams Rite Manufacturing Co.
InventorAlan K. Uyeda
Life of this patent
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Abstract
An electrical release door strike comprising a carrier frame; a strike bolt carried by the frame for movement when released, allowing door opening, the bolt adapted to receive and resist door opening force prior to bolt movement; a solenoid carried by the frame to have either of two alternate positions relative to the frame; and structure operatively connected between the solenoid and bolt in either of the positions to cause the bolt to assume i) a fail safe condition when the solenoid is in one of the positions, ii) a fail secure condition when the solenoid is in the other of the positions.
Claims10
In an electrical release door strike, the combination comprising:
- a ) a carrier frame,
- b) a strike bolt carried by the frame for movement when released, allowing door opening, the bolt adapted to receive and resist door opening force prior to bolt movement,
- c) a solenoid carried by the frame to have either of two alternate positions relative to the frame,
- d) and means operatively connected between the solenoid and the bolt in either of said positions for causing the bolt to assume
- i) a fail safe condition allowing bolt pivoting when the solenoid is in one of said positions,
- ii) a fail secure condition preventing bolt pivoting when the solenoid is in the other of said positions.
Dependencies are inferred from the claim text.