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 10502338 B1

Expired

Date of Patent:

Dec. 10, 2019

Filed:

Oct. 04, 2017

Pressure valve

Applicant:

Danfoss Power Solutions Gmbh & Co. Ohg, Neumünster, DE;

Inventors:

Martin Wuestefeld, Neumünster, DE;

Reinhardt Thoms, Neumünster, DE;

Assignee:

Danfoss Power Solutions G.m.b.H. & Co. OHG, Neumunster, DE;

Attorney:

McCormick, Paulding & Huber PLLC

Primary Examiner:

P Macade Nichols

Int. Cl.

CPC ...

F16K 31/122 (2006.01); F16K 17/04 (2006.01); F16K 17/10 (2006.01);

U.S. Cl.

CPC ...

F16K 31/1221 (2013.01); F16K 17/04 (2013.01); F16K 17/105 (2013.01);

Abstract

Pressure relief valve () comprising a valve housing (), in which a double-side operable cylindrical pressure relief valve spool () is housed slidable along a longitudinal axis () of a cylindrical bore () in the valve housing (). The pressure relief valve spool () can be shifted into a first position by a first force acting on an actuating side () of the pressure relief valve spool () and can be shifted into a second position by a pressure force acting on a sealing side () of the pressure relief valve spool (). On the sealing side () of the pressure relief valve spool () a double-sealing, rotational symmetric poppet () is located having a rotational axis (), a first convex sealing surface () and a second convex sealing surface (). The first sealing surface () facing away from the pressure relief valve spool () is provided for sealing with an external valve seat (). The second sealing surface () facing to the stepped bore () in the valve spool () is provided for sealing with the smaller diameter of the stepped bore (). The poppet () and the rotational axis () of the poppet () are tiltable with respect to the longitudinal axis () of the cylindrical bore () in the pressure valve housing ().

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Wuestefeld, Martin. (2019). Pressure valve (U.S. Patent No. 10502338). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10502338

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