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:
Apr. 06, 1976
Filed:
May. 07, 1974
Paul G Solovieff, Tustin, CA (US);
Other;
Abstract
A door lock having two escutcheon plates clamped against the sides of a door, two mortise cylinders mounted in coaxial relation in the escutcheon plates and each having a rotatable key plug and an actuating arm on the inner end of the plug, a bolt slidable between extended and retracted positions, and a toggle joint bolt-operating mechanism actuated by the actuating arms on the key plugs. This mechanism includes a bolt link pivotally connected to the inner end of the bolt, and an actuating link between the ends of the key plugs having abutment means for coupling and uncoupling of the arms and the actuating link which is urged in toward the locked and unlocked positions by a toggle spring movable into oppositely over-center positions. The abutment means comprise two spaced tabs defining a slot into which the actuating arm is eccentrically extended and retracted during rotation of the key plug through full locking and unlocking revolutions.