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:
Feb. 06, 1979
Filed:
Jul. 22, 1977
Applicant:
Inventor:
Darrell B Minton, Sebastapol, CA (US);
Assignee:
National Controls, Inc., Santa Rosa, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400474 ; 400 70 ; 235146 ; 200178 ; 335112 ; 178 / ; 234115 ;
Abstract
Actuator for use with a push-button keyboard in which the keys are arranged in an array of intersecting rows and columns. A single solenoid is provided for each row and column, and means operated by the solenoids causes the key to be depressed at the intersection of a row or column for which the solenoids are energized.