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:
Jul. 10, 2001
Filed:
Jun. 09, 1999
Eugene R. Davis, III, Angola, IN (US);
Mark E. Riechmann, Ft. Wayne, IN (US);
Therma-Tru Corporation, Maumee, OH (US);
Abstract
A multipoint lock assembly for securing a door that is hinged along one edge and that has a free, swingable edge opposite the hinged edge. The assembly includes a central latch and at least one remote latch vertically spaced therefrom along the free edge of the door. The retraction of all the latches is controlled by a central latch driving mechanism in response to a manual operation either of an exterior thumb-operated latch lever or of an interior doorknob. A deadbolt is also located proximate the central latch. The deadbolt is controlled either by an externally accessed cylinder lock in response to a manual insertion and rotation of a key or by a manual rotation of an interior-mounted thumb-turn. While the deadbolt is extended, the thumb-operated latch lever and the doorknob are inoperable. At least one of the latches includes a latch trigger. This is tripped when the door is closed, allowing the latch of which it is a part to assume a superextended position. When in this position the latch cannot be forced into its retracted position unless the thumb-operated latch lever or the doorknob has been operated.