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.

Date of Patent:
May. 19, 1981

Filed:

Jun. 18, 1979
Applicant:
Inventor:

Horst Pfeiffer, Aldingen, DE;

Assignee:

J. Hengstler K.G., Aldingen, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06C / ;
U.S. Cl.
CPC ...
2351 / ; 2351 / ;
Abstract

At least one presetting digit wheel consists of a rotatably mounted digit-carrying wheel part, a rotatably mounted resetting wheel part, and a non-positive two-way coupling means connecting the digit-carrying wheel part and the resetting wheel part for joint rotation. A rotatably mounted resetting shaft is provided. Lost-motion one-way coupling means are adapted to connect the rotatably mounted resetting shaft and the resetting wheel part for joint rotation only in one sense and only when the resetting shaft and said resetting wheel part are in a predetermined rotational position relative to each other. Detent means are adapted to hold the resetting shaft against rotation in a predetermined rotational position thereof, and locking key means are manually operable to hold the digit-carrying wheel against rotation when the resetting wheel part is rotated by said resetting shaft.


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