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:
Mar. 20, 1979
Filed:
Aug. 24, 1977
Sadayoshi Iwasaki, Furukawa, JP;
Alps Electric Co., Ltd., , JP;
Abstract
A rotary pulse switch wherein either one of two circuits can be selected depending on the direction of rotation of a turn shaft, and the selected circuit can be turned on and off consecutively. The switch includes a rotor having a conductor portion comprised of a ring-shaped common portion and a plurality of radially extending rotary contact portions. An insulating shutter plate is disposed between the rotor and contacts engageable therewith. The contacts include two adapted to engage the rotary contact portions and a single contact adapted to engage the common portion. Rotation of the shutter plate in either direction will electrically isolate one of the two contacts while electrically connecting the other of the two with the rotary contact portions.