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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.:

US 5315317 B1

PDFFull Text
Date of Patent:
May. 24, 1994

Filed:

Sep. 15, 1993

Ink quantity detecting device and recording apparatus with the devie

Applicant:
Inventors:

Koji Terasawa, Mitaka, JP;

Makoto Takemura, Tokyo, JP;

Takashi Nojima, Tokyo, JP;

Akira Miyakawa, Tanashi, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Fitzpatrick, Cella, Harper & Scinto

Primary Examiner:

Benjamin R Fuller

Assistant Examiner:

Eric Frahm

Int. Cl.
CPC ...
G01D / ; G01D / ; B41J / ; G01F / ;
U.S. Cl.
CPC ...
346-11 ; 3461 / ; 400126 ; 7330 / ;
Abstract

An ink quantity detecting device includes a plurality of ink chambers for containing inks, displacement members each provided for a corresponding one of the ink chambers and capable of being displaced in accordance with a quantity of a corresponding ink, a coupling member for coupling a plurality of displacement members, and a detecting unit for detecting displacement of at least one of the displacement members or the coupling member. The coupling member can be displaced in accordance with a quantity of at least one ink.

Find Patent Forward Citations

Terasawa, Koji. (1994). Ink quantity detecting device and recording apparatus with the devie (U.S. Patent No. 5315317). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5315317

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