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:
Sep. 18, 2001
Filed:
Mar. 09, 2000
Applicant:
Inventor:
René Gigon, Porrentruy, CH;
Assignee:
Ateliers Busch SA, Chevenez, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03C 2/100 ;
U.S. Cl.
CPC ...
F03C 2/100 ;
Abstract
The scroll pump has the capability of preserving a minimal play between the joints disposed on the ridges of each of the spiraling walls and the flat wall facing it. Such an arrangement, possible owing to the slight difference in pressure prevailing between two adjacent transfer chambers, makes it possible to prevent wear and tear on the joints, soiling of the transfer chambers as well as overheating due to friction on the joints.
Gigon, René. (2001). Scroll vacuum pump (U.S. Patent No. 6290477). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6290477
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile