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 6949758 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 27, 2005

Filed:

Oct. 07, 2002
Applicants:

Zhong-you Shi, Ann Arbor, MI (US);

C. Allen Marlow, Saline, MI (US);

Inventors:

Zhong-You Shi, Ann Arbor, MI (US);

C. Allen Marlow, Saline, MI (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N015/08 ; G01N021/49 ; G01N021/85 ;
U.S. Cl.
CPC ...
Abstract

A non-mechanical fluid level sensor based on light communication channel (LCC) technology. In a preferred embodiment, one end of the LCC is connected to a signal source while another end is connected to a sensor. The LCC is dipped in a fluid container and a signal propagates and undergoes internal reflection through the LCC towards one of its ends which is connected to the sensor. The fluid level is detected preferably by measuring the intensity of the signal reflected with the LCC that reaches a sensor. Different fluid levels preferably correspond to linearly varying detected signal intensities. A main LCC bus may communicate remotely with the sensor without wiring or other electrical connectors.


Find Patent Forward Citations

Shi, Zhong-You. (2005). Lcc-based fluid-level detection sensor (U.S. Patent No. 6949758). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6949758

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