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:
Oct. 13, 1981
Filed:
Jan. 28, 1980
Applicant:
Inventors:
Folker Galaske, Pforzheim, DE;
Oswald Hack, Pforzheim, DE;
Assignee:
International Standard Electric Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ; B41J / ;
U.S. Cl.
CPC ...
400488 ; 400490 ; 400489 ; 400495 ; 400496 ; 3403 / ; 2351 / ;
Abstract
Keyboards designed in accordance with ergonomic viewpoints are slightly dished transversely in relation to the longitudinal direction and the key surfaces have a slope tending toward the dished shape. According to the invention, this arrangement is accomplished with the aid of adapters located between the key element plungers and the keyheads. For each row of keys there is provided a special type of adapter. The types of adapters differ from one another in their effective heights and in the slope angles of the supporting surfaces for the keyheads.