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 8044698 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 25, 2011

Filed:

Apr. 17, 2008
Applicants:

Yasunori Kawaguchi, Shizuoka, JP;

Kenichi Tanaka, Shizuoka, JP;

Toshio Oike, Shizuoka, JP;

Inventors:

Yasunori Kawaguchi, Shizuoka, JP;

Kenichi Tanaka, Shizuoka, JP;

Toshio Oike, Shizuoka, JP;

Assignee:

Yazaki Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F 23/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

A liquid level detection apparatus includes a resistance plate which has a conducting pattern formed on a board, the conducting pattern including a first slide portion, a second slide portion, a plus electrode electrically connected to the first slide portion, and a minus electrode electrically connected to the second slide portion, a float which moves in accordance with a change of a liquid level, a float arm connected to the float, a sliding arm which slides over the resistance plate in accordance with a pivotal movement of the float arm, a plus connection terminal connected to the plus electrode, a minus connection terminal connected to the minus electrode, and a protective layer formed on the plus connection terminal so as to cover the plus connection terminal.


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