Manually or electrically driven lock
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 24, 1988
Grant Date -
N/A
app pub date -
Jun 9, 1986
filing date -
Jun 12, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A safety lock cylinder is constructed so that a door can be opened or closed manually from one side, preferably the outside by inserting a key in a key guide and from the other side with a motor. The remote control of the lock can be prevented, if desired. By manually closing the door with the key in the key guide, the key and motor are releaseably coupled to the lock operating mechanism so that when the key is inserted the motor is decoupled from the mechanism, preventing danger to a person holding the key.
First Claim
Family
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Cited Art Landscape
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