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:
Mar. 12, 2002
Filed:
Jun. 29, 1999
Applicant:
Inventors:
James Vanderveen, Blenheim, CA;
Zhouxuan Xia, Windsor, CA;
Assignee:
Siemens Canada Limited, Tilbury, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 1/22 ;
U.S. Cl.
CPC ...
F16K 1/22 ;
Abstract
A throttle shaft and butterfly construction is formed by molding both components from composite plastic, the shaft having integral bosses which are received in holes formed in the throttle plate. The bosses are ultrasonically or heat staked to lock the throttle plate onto the throttle shaft. The butterfly has ribs extending across a face of the butterfly substantially to the edge of the valve in a direction parallel to the flow of air across the butterfly to stiffen the butterfly and reinforcing ribs on the butterfly parallel to the throttle shaft to stiffen both the butterfly and the throttle shaft.