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:
Jan. 11, 1983
Filed:
Jun. 04, 1981
Applicant:
Inventor:
Haruhiko Koto, Shiojiri, JP;
Assignees:
Shinshu Seiki Kabushiki Kaisha, Nagano, JP;
Kabushiki Kaisha Suwa Seikosha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
3461 / ;
Abstract
An ink supply system for an ink printer. The system includes an ink cartridge which supplies ink through a conduit to the print head of the printer. A bubble trapping device is disposed along the conduit and includes a porous member which prevents air bubbles from entering the nozzle of the print head. The air bubbles are held in a chamber defined in the bubble trapping device. Fluid passages in the chamber of the bubble trapping device allow for continuous feeding of the ink to the porous member for passage to the nozzle. A bubble detecting device may also be provided in the supply system.