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:
Oct. 28, 2003
Filed:
Oct. 29, 2001
Pierre Vanden Brande, B-3090 Overijse, BE;
Alain Weymeersch, B-1300 Wavre, BE;
Other;
Abstract
Vacuum pump with a chamber ( ) having, on one side, an intake ( ) for pumping gas and, on the opposite side, an outlet ( ) for the gas, displacement elements ( ) being provided to drive the gas from the intake ( ) towards the outlet ( ), the displacement elements ( ) including at least a vibrating element ( ) for generating sound waves moving in the chamber ( ), elements for closing ( ) the outlet ( ) being provided synchronously co-operating with the displacement elements ( ) so as to clear the outlet opening ( ) when the gas pressure in the proximity of the outlet ( ) is higher than that in the proximity of the intake ( ).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile