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. 28, 2023
Filed:
Jul. 31, 2020
Applicant:
Hamilton Sundstrand Corporation, Charlotte, NC (US);
Inventors:
Darryl A. Colson, West Suffield, CT (US);
Murtuza Lokhandwalla, South Windsor, CT (US);
Assignee:
HAMILTON SUNDSTRAND CORPORATION, Charlotte, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 25/08 (2006.01); F04D 29/057 (2006.01); F04D 29/051 (2006.01); F04D 29/52 (2006.01); F04D 29/32 (2006.01); F04D 29/58 (2006.01); F04D 29/059 (2006.01);
U.S. Cl.
CPC ...
F04D 29/057 (2013.01); F04D 25/08 (2013.01); F04D 29/051 (2013.01); F04D 29/059 (2013.01); F04D 29/329 (2013.01); F04D 29/522 (2013.01); F04D 29/584 (2013.01);
Abstract
A ventilation fan includes a shaft, a rotor, a motor housing, a bearing housing, and an air bearing. The shaft has a shaft body that extends between a first shaft end and a second shaft end. The shaft body defines a first port and a bore. The rotor is disposed about the shaft. The motor housing is disposed about the shaft and is axially spaced apart from the rotor. The bearing housing is disposed about the shaft. The air bearing is disposed proximate the second shaft end and is disposed between the bearing arm and the second shaft end.