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:
Nov. 06, 2007
Filed:
Apr. 08, 2004
Markus Nieslony, Salach, DE;
Alfons Schoetz, Ditzingen, DE;
Matthias Distel, Ostfildern, DE;
Achim Koehler, Ditzingen, DE;
Falko Bredow, Remseck, DE;
Waldemar Kiel, Gerlingen, DE;
Jochen Aleker, Stuttgart, DE;
Markus Nieslony, Salach, DE;
Alfons Schoetz, Ditzingen, DE;
Matthias Distel, Ostfildern, DE;
Achim Koehler, Ditzingen, DE;
Falko Bredow, Remseck, DE;
Waldemar Kiel, Gerlingen, DE;
Jochen Aleker, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A check valve having a valve housing inserted into a receptacle in which housing a pistonlike valve member is guided longitudinally displaceably and cooperating with a valve seat on the valve housing. The valve member is urged in the closing direction by a prestressed closing spring and in the opening direction by the pressure prevailing in an inlet, and the valve member is inserted into the valve housing from the side of the valve seat. The valve housing is embodied in one piece and is embodied as cup-shaped and has both a bottom and a jacket region that defines a recess. With the open end of its recess, the valve housing points out of the receptacle, and the valve seat is located on the bottom of the valve housing, facing away from the recess. With a shaft, the valve member protrudes through a bore in the bottom into the recess in which the closing spring is located.