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, 2013
Filed:
Sep. 29, 2009
Applicants:
Matthew Hollister, Hudson, WI (US);
Doug Purdy, Edina, MN (US);
Dustin Featherstone, Taylors Falls, MN (US);
Inventors:
Matthew Hollister, Hudson, WI (US);
Doug Purdy, Edina, MN (US);
Dustin Featherstone, Taylors Falls, MN (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F03C 4/00 (2006.01); F04C 2/00 (2006.01); F04C 29/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fluid device includes a housing and a rotor assembly disposed in the housing. The rotor assembly includes a core and a coating. The core has a first surface, an oppositely disposed second surface and an outer peripheral surface that extends between the first and second surfaces. The core defines a bore that extends through the first and second surfaces. The coating coats at least a portion of the core. The coating is a water-swellable plastic material.