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:
Dec. 04, 1979
Filed:
Mar. 23, 1978
Robert L Beecher, II, Indianapolis, IN (US);
Harold J Hershey, Indianapolis, IN (US);
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Abstract
A multiple pushbutton switch is disclosed in which each pushbutton actuator has a rotatable cam mounted thereon that interacts with one or more lockout members positioned alongside of the actuator in the same plane as the cam. The interaction between the cam and the lockouts is such that one group of the pushbutton actuators can be depressed simultaneously while a second group of the actuators are blocked from simultaneous depression with the first group. Furthermore, a pushbutton actuator can be shifted from one group to the other merely by rotating the cam thereon to a different position.