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. 14, 1982
Filed:
Feb. 21, 1979
Applicant:
Inventors:
Assignee:
Kienzle Apparate GmbH, Villingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
400492 ; 400475 ; 400472 ; 400479 ;
Abstract
A keyboard which can be assembled from individual keys is disclosed. The individual keys include a key button, a key shaft for switching electric circuits, a stationary key body, and a spring for influencing the relative movement between the key shaft and key body. A base structure having cutouts is provided for receiving the keys. A circuit board carrying control elements cooperates with the key arrangement. The key buttons have several receiving openings for the key shafts. The cutouts in the base structure and the arrangement of the control elements on the circuit board are staggered relative to each other from row to row by a half spacing.