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. 09, 2003
Filed:
Dec. 09, 2002
Erwin Krimmer, Pluederhausen, DE;
Ralph Krause, Waiblingen, DE;
Peter Baur, Waiblingen, DE;
Christian Lorenz, Aalen-Unterrombach, DE;
Klaus Kaiser, Markgroeningen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
In a flap valve for controlling a gas flow, with a valve tube ( ) that carries the gas flow and with a valve flap ( ) that is pivotable in the valve tube ( ) and that in its closing position rests sealingly with its outer contour on the inner wall of a flexible thin-walled tube ( ) disposed coaxially in the valve tube ( ), and with a valve shaft ( ) connected to the valve flap ( ) in a manner fixed against relative rotation, it is provided, in order to attain a sensitive adjustment of the valve flap ( ) and for the sake of technologically simple, inexpensive production of the flap valve ( ), that the valve shaft ( ) is positioned at an acute angle (&ggr;) relative to the valve plane, and the thin-walled tube ( ) is formed directly and integrally onto the valve tube ( ) (FIG. ).