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:
May. 21, 2002
Filed:
Feb. 18, 2000
Didier Maillefer, Belmont Sur Lausanne, CH;
Harald Van Lintel, Lausanne, CH;
Westonbridge International Limited, Wellington Quay, IE;
Abstract
The invention relates to a micropump ( ) comprising at least a first plate ( ), a second plate ( ), an intermediate plate ( ), a pump chamber ( ), and inlet and outlet control members ( ). According to the invention, said inlet control member ( ) is a non-return valve situated in the major portion of the thickness of said intermediate plate ( ), being made of a moving member ( ) and a membrane-forming portion ( ) situated close to one of the plates ( ), connecting said moving member ( ) to the remainder of said intermediate plate ( ) and, by its resilience, enabling said valve ( ) to move between a closed position and an open position, said moving member ( ) having an orifice of limited volume passing therethrough.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile