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.:
Date of Patent:
May. 05, 2009
Filed:
Aug. 28, 2006
Stuart K. Denike, Phoenix, AZ (US);
G. Stephen Mcgonigle, Gilbert, AZ (US);
Robert D. Sleeper, Laveen, AZ (US);
Craig T. Dorste, Phoenix, AZ (US);
Don J. Atkins, Chandler, AZ (US);
Joseph J. Jira, Laveen, AZ (US);
Stuart K. Denike, Phoenix, AZ (US);
G. Stephen McGonigle, Gilbert, AZ (US);
Robert D. Sleeper, Laveen, AZ (US);
Craig T. Dorste, Phoenix, AZ (US);
Don J. Atkins, Chandler, AZ (US);
Joseph J. Jira, Laveen, AZ (US);
Honeywell International Inc., Morristown, NJ (US);
Abstract
A pressure relief check valve system includes a valve body, a flapper, a magnet, an electromagnet, and a pressure sensor circuit. The flapper is rotationally mounted on the valve body and is movable between a closed position and an open position. The magnet is coupled to the flapper, and the electromagnet is coupled to the valve body. The pressure sensor circuit is adapted to sense one or more fluid pressures and is operable, based on the one or more sensed fluid pressures, to selectively supply or interrupt the electrical current to the electromagnet. The electromagnet is coupled to receive the electrical current and, upon receipt of the electrical current, either magnetically attracts or does not magnetically attract the magnet, to thereby hold the flapper in the closed position or allow flapper rotation to the open position, respectively.