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. 01, 2002
Filed:
Mar. 27, 2001
Applicant:
Inventor:
Lonnie Dunn, Sherwood Park, CA;
Assignee:
Weatherford/Lamb, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C 2/107 ; F04C 5/00 ;
U.S. Cl.
CPC ...
F04C 2/107 ; F04C 5/00 ;
Abstract
The present invention provides an adjustable rotor and/or stator, so that the interference fit and/or clearance can be adjusted. The rotor and/or stator are tapered to provide a difference in fit between the rotor and stator by longitudinal adjustment of their relative position. The relative longitudinal adjustment is achieved in response to a change in temperature and is matched to the taper angle of the stator/rotor to maintain a desired interference fit.