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. 28, 1992
Filed:
Jul. 26, 1991
Yaw-Shin Fann, Chia-Yi, TW;
Ming-Shyang Chiou, Chia-Yi, TW;
Abstract
A latch bolt operating device incorporating lever handles and rotary plates cooperatively rotatable with the lever handles to control the angle of the rotation of the handles. The device is provided with a simplified privacy lock mechanism to prevent the opening of a door at one side thereof. The lock mechanism is directly mounted to the assembly of the lever handles, thereby eliminating the need of an additional housing to hold the mechanism. One of the rotary plates is provided with a cam face to actuate a lock shaft of the lock mechanism. The lock shaft is telescopic so that the device accommodates door panels of different thickness.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile