The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 21, 1989
Filed:
Sep. 09, 1987
Theodore E Schmidt, Carlton, OR (US);
Alfred J Peirish, McMinnville, OR (US);
Pacific Security Systems of America, Inc., Portland, OR (US);
Abstract
A lock including a housing having an actuator slidably mounted within the housing. A latch bolt and a door-position sensor are mounted within the housing, each extensible and retractable relative to the housing. The actuator has an intermediate position where the latch bolt and sensor are free to move into the housing, a deadlocking position with the actuator shifted in one direction from this intermediate position where the latch bolt is deadlocked in an extended position with the sensor retracted, and another position which produces retraction of the sensor and latch bolt. A pneumatic device powers movement of the actuator toward its other position and a spring biases the actuator toward its deadlocking position.