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:
Aug. 04, 2009
Filed:
Sep. 02, 2005
Timothy T. Marquis, Lincoln, NE (US);
Timothy T. Marquis, Lincoln, NE (US);
Parker-Hannifin Corporation, Cleveland, OH (US);
Abstract
A coupling () comprising a pair of female couplers () each independently movable within a respective housing bore () among an operating position, a release position, and a coupling position. When a female coupler () is moved to the coupling position, a stop member () moves the plunger of a pressure relief valve () to an open position to allow fluid to be released from the female coupler () prior to coupling a male coupler thereto. A cam member (), which is used to move the respective female coupler () from the operating position to the release position, can move away from the plunger when the female coupler () is in the coupling position as the pressure relief valve () is held open by the stop member ().