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:
Jun. 07, 1977
Filed:
Nov. 11, 1974
Shunsaku Nakauchi, Mitaka, JA;
Kokusai Gijutsu Kaihatsu Kabushiki Kaisha, Tokyo, JA;
Abstract
Each wire of a wire printer is driven by a separate pneumatic motor. Each motor is actuated by compressed air which is selectively passed through an electrically operated valve for each motor. Each valve is actuated by an electric signal indicating whether the associated printing wire should be driven to print a desired character. Coupled between a compressed air source and all of the individual valves is an electrically operated pressure control valve which is normally closed to block transmission of compressed air from the source to the individual valves. After the individual valves are opened by electric signals to permit the printing of a desired character, the control valve is then opened to permit transmission of the compressed air through the opened individual valves to actuate the individual pneumatic motors to drive the print wires necessary to print the desired character.