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:
Feb. 28, 1984
Filed:
Nov. 10, 1981
Hitoshi Fujiwara, Shiojiri, JP;
Masanao Matsuzawa, Shiojiri, JP;
Epson Corporation, Nagano, JP;
Kabushiki Kaisha Suwa Seikosha, Tokyo, JP;
Abstract
A manually operated dot printer designed for use in a pocket sized calculator or a small sized electronic device includes a printing head which is manually movable across a sheet of printing paper in one direction. A pulse generating circuit produces a signal in synchronization with the speed of travel of the printing head. While the printing head is moving in said one direction, the printing head effects electrically controlled printing operations with dots in response to the signal produced by the pulse generating circuit. As the printing head is advanced, spring means store energy which is applied to return the printing head and advance the printing paper.