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:
Jun. 29, 1982
Filed:
Sep. 05, 1980
Akihiko Inoue, Soma, JP;
Shigekata Sugiura, Soma, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A locked-type push-button device which has a plurality of push buttons and only one of the push buttons can be locked in the depressed state when it is depressed. A mechanism includes a cam for preventing the simultaneous locking of two adjacent push buttons, which has nearly a semicircular shape in cross section. The cam has notches at positions corresponding to the positions of the push buttons, and the notches each have a width greater than the width of the respective push buttons. The notches are alternately arrayed on opposite sides of the cam, and is thus urged to turn in the opposite directions when it is depressed by the neighboring push buttons.