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. 17, 1985
Filed:
Jun. 17, 1983
Applicant:
Inventor:
Akira Oyama, Miyagi, JP;
Assignee:
Alps Electric Co., Ltd., , JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01C / ;
U.S. Cl.
CPC ...
338196 ; 338119 ; 338134 ; 338163 ; 338184 ;
Abstract
A rotary type illuminated variable resistor wherein a light source is disposed in a case, and first and second optical guide members for guiding light from the light source are respectively disposed in a hollow shaft and a hollow knob. When the knob is rotated, the second optical guide member is also rotated, so that the rotational position of a variable resistance portion mounted on the hollow shaft can be indicated on the end face of the knob by the light.
Oyama, Akira. (1985). Illuminated variable resistor (U.S. Patent No. 4542366). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4542366
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile