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 6547529 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 15, 2003

Filed:

Aug. 24, 2001
Applicant:
Inventor:

Donald Gross, Hanover, MD (US);

Assignee:

Other;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 4/900 ;
U.S. Cl.
CPC ...
F04B 4/900 ;
Abstract

A sensor, system, and method for determining whether sufficient water is present to safely operate a pump. The sensor includes first and second conductive fittings that are physically and electrically isolated from one another by a third non-conductive fitting. Electrodes are secured to the exteriors of the first and second fittings and are electrically connected to an electronic detection device. The electronic detection device applies a voltage across the first and second fittings and detects a current flowing between the first and second fittings. The current is correlated to the presence of water between the first and second fittings. If the detected current is below a predetermined minimum, the electronic detection device turns off the pump to prevent dry-running thereof.


Find Patent Forward Citations

Gross, Donald. (2003). Dry tank shutdown system for pumps (U.S. Patent No. 6547529). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6547529

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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