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 8591728 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 26, 2013

Filed:

Aug. 23, 2006
Applicants:

Seiji Hideno, Tokyo, JP;

Seigo Matsunaga, Tokyo, JP;

Inventors:

Seiji Hideno, Tokyo, JP;

Seigo Matsunaga, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 35/02 (2006.01); G01N 27/10 (2006.01); G08B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A conductive fluid detection apparatus for detecting moisture mixed into a coolant comprises: a filter unit having a tubular member through which a coolant can flow, mesh members made of stainless steel etc. and filter paper through which the coolant can pass, but which can hold moisture, the mesh members and the filter paper provided and stacked inside the tubular member, the filter paper interposed between the mesh members; a resistance value measurement circuit measuring the resistance value between mesh members; and a relay stopping the supply of power to the pump when the resistance value between the mesh members falls.


Find Patent Forward Citations

Hideno, Seiji. (2013). Filter unit, fluid refill apparatus, and electronic device test apparatus (U.S. Patent No. 8591728). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8591728

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