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:
Aug. 17, 2010
Filed:
Jun. 25, 2004
Daniel R. Der Marderosian, Westwood, MA (US);
Heinz Bauer, Baden-Baden, DE;
Stephane Laurent, Strasbourg, FR;
Peter Bolz, Buehl, DE;
Daniel R. Der Marderosian, Westwood, MA (US);
Heinz Bauer, Baden-Baden, DE;
Stephane Laurent, Strasbourg, FR;
Peter Bolz, Buehl, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
An air pump assembly includes a pump module having an outer surface and a casing at least partially surrounding the pump module. The casing has an inner surface defining a cavity sized to snugly receive the pump module such that the outer surface of the pump module is in substantial engagement with the inner surface of the casing and is substantially prevented from moving with respect to the casing when the pump module is received within the cavity. At least one airflow passageway is defined between the inner surface of the casing and the outer surface of the pump module. The airflow passageway is configured so that air flowing through the passageway changes direction at least one time to reduce the transmission of noise from the air pump assembly.