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. 17, 1990
Filed:
Apr. 12, 1989
Abstract
A switch apparatus comprises an arm which is rotated by a rotational force added to an operation knob and thus linearly drives a contact holder through an engagement portion so as to change over contacts points. The engagement portion is received in a groove formed in the contact holder and has surfaces which hold the center line in the radial direction of the arm, each surface having a circular arc form with a center substantially in the same place at a position equi-distance on either side of the center line so that the change in movement of the contact holder with the change in rotational angle of the arm is substantially constant.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile