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. 02, 1990
Filed:
May. 09, 1988
Applicant:
Inventors:
Melvin S Nation, Elmhurst, IL (US);
Robert W Krawczyk, Rolling Meadows, IL (US);
Assignee:
Illinois Tool Works, Inc., Chicago, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01H / ;
U.S. Cl.
CPC ...
200 / ; 200527 ; 361400 ; 439845 ;
Abstract
An index rotary switch including a rotary contact carrier journaled between a pair of thrust bearings solely for rotary motion. A rotary electrical contact including four contacts indexes with a stationary contact array forming an infinite number of ON-OFF positions and forms a redundant constant pressure electrical contact in each ON position.
Nation, Melvin. (1990). Index rotary switch (U.S. Patent No. 4891476). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4891476
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile