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:
Sep. 08, 1992
Filed:
Oct. 12, 1990
James E Robida, Cobalt, CT (US);
Kenneth W Strickland, South Windsor, CT (US);
Emhart Inc., Newark, DE (US);
Abstract
A cylindrical lock assembly (20) includes an inside subassembly (22) and an outside subassembly (24) which are assembled with a door (326). Each subassembly (22,24) includes a rose liner (26,38), a return spring cassette (28,40), a rose (30,42), a lever (32,46) and a lever insert (34,48). The inside subassembly (22) also includes a turn button (36) and the outside subassembly (24) includes a cylinder lock (44). The lever inserts (34,48) are each formed from a plastic material with a first element (400) and a second element (414) which are integrally joined by a plastic ribbon (426). In one instance, the first and second elements (400,414) are separated from the ribbon (426) and are joined to form structure which fills voids in the exterior of the levers (32,46). The voids are necessary for the insertion of the cylinder lock (44) which contains, for example, six tumbler pins. In another instance, only the first element (400) is used where the cylinder lock (44) contains, for example, seven tumbler pins.