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:
Jan. 06, 1987
Filed:
Jan. 22, 1985
William J Fane, North Vancouver, CA;
NI Industries, Inc., Long Beach, CA (US);
Abstract
For an electronically motivated door lock there is a key carrying magnetic coding for actuating an electronically triggered release mechanism to unlock a door. Insertion of the key in the keyway initially closes a switch to energize the electronic circuit. The electronic circuit is programmed to motivate a motor driven mechanism in successive stages to move a blocking finger into and out of engagement with a notch in a rotatable disc on a cylinder plug which operates the latch bolt. The motor rotates preferably in one direction but by use of a rotating drive pin shiftable from end to end of a transverse slot, the blocking finger is moved alternately into and out of engagement with the notch in response to the successive energizations of the motor.