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:
Dec. 13, 2011
Filed:
Oct. 12, 2007
Charles Stephens, Seattle King, WA (US);
John Michael Morris, Auburn, WA (US);
Charles Stephens, Seattle King, WA (US);
John Michael Morris, Auburn, WA (US);
Norgren GT Development Corporation, Auburn, WA (US);
Abstract
The present invention relates to a leveling valve including a first port, a second port, a third port, a valve, and a clutch. The clutch is provided with an engaged position and a disengaged position. At least a portion of the clutch may move relative to the valve when the clutch is in the disengaged position. The clutch moves the valve when the clutch is in the engaged position. The valve is movable between a first position, a second position, and a third position. When the valve is in the first position, the valve blocks a first pathway, which extends from the first port, from connecting with a second pathway, which extends from the second port. When the valve is in the second position, the valve allows the first pathway to connect with the second pathway. When the valve is in the third position, the valve allows the second pathway to connect with a third pathway, which extends from the third port.