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. 07, 2000
Filed:
Feb. 11, 2000
Applicant:
Inventor:
Klaus Karthaeuser, Grossbottwar, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B / ;
U.S. Cl.
CPC ...
1376275 ; 13759616 ; 3031191 ;
Abstract
An electromagnetic proportional valve with an outlet chamber that communicates via a fixed valve with a first valve chamber and via a movable valve with a second valve chamber. A valve seat of the fixed valve is embodied on the valve body and the valve seat of the movable valve is embodied on the valve member of the fixed valve. A movable sealing element seals off the two valve chambers from one another. The sealing element, for the sake of achieving the least possible hysteresis, is embodied as a metal bellows that extends through the first valve chamber and on each end is fixed in sealed fashion, on the valve member of the fixed valve and on the valve body.