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:
Dec. 04, 1979
Filed:
Aug. 31, 1977
Katsuhiko Okabe, Tokorozawa, JP;
Copal Company Limited, Tokyo, JP;
Abstract
The printer has a plurality of printing rings each rotatably supported by a swingable layer pivoted about a pivot axis so as to be swung in an arcuate path around the pivot axis while it is rotated by a driving source about its own axis so that the printing rings are selectively swung toward and against a platen upon receipt of printing character selection command from the control circuit of the printer so as to print onto a paper held therebetween when the selected one of the characters on the respective printing ring is brought to a position for the printing during the rotation thereof. The driving source for the rotation of the printing rings is controlled by pulses so that the rotation about the axis of the respective printing ring is rendered to be intermittent and the swinging of the respective swingable lever for the printing operation is effected during the time the respective printing ring is held stationary in its intermittent rotation thereby insuring exact printing operation of the selected characters.