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. 16, 2008
Filed:
Feb. 04, 2005
Volkmar Klein, Zweibrücken, DE;
Volkmar Klein, Zweibrücken, DE;
Hydac Filtertechnik GmbH, Sulzbach/Saar, DE;
Abstract
A non-return valve includes a valve body () which defines an internal fluid through-opening () extending along the longitudinal axis () of the body. A seat body () defines a valve seat () arranged in the through opening (). A closing body () is axially displaceable in the through opening () oppositely to a closing force produced by a closing spring () between a closed position applied to the seat body () and an open position lifted from the valve seat () on the closing body (). The valve body () forms a guide along which the seat body () is axially displaceable in different adjusting positions corresponding to the desired preloads of the closing spring () and, consequently to the desired adjustments of the closing force quantity of the closing spring ().