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:
Jun. 02, 1981

Filed:

Jul. 05, 1978
Applicant:
Inventors:

Chikao Tezuka, Shiojiri, JP;

Hitoshi Mikoshiba, Shiojiri, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J / ;
U.S. Cl.
CPC ...
101 99 ; 101 9322 ;
Abstract

In a printing device including rotatable character wheels having type characters on the surface thereof and a selection mechanism for selectively bringing a character to a printing position, a drive means is provided for moving the selection mechanism. Coupling between the drive means and the selection mechanism is effected by an electro-magnet, size and power requirements for the electro-magnet being reduced by the fact that the electro-magnet functions only as a coupling means and not as the drive means itself.


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Tezuka, Chikao. (1981). Printing device (U.S. Patent No. 4270448). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4270448

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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