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:
Nov. 04, 2014
Filed:
Mar. 30, 2012
Applicants:
Martin D. Maier, Allegany, NY (US);
H. Allan Kidd, Vero Beach, FL (US);
Inventors:
Martin D. Maier, Allegany, NY (US);
H. Allan Kidd, Vero Beach, FL (US);
Assignee:
Dresser-Rand Company, Olean, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 32/04 (2006.01); F16C 41/04 (2006.01);
U.S. Cl.
CPC ...
F16C 32/0406 (2013.01); F16C 41/04 (2013.01);
Abstract
Coast-down bearing apparatus and methods are provided. The coast-down bearing includes a plurality of segments each having a radius of curvature substantially equal to an outer radius of a shaft and spaced radially therefrom to define a clearance, with the plurality of segments being configured to receive the shaft when a magnetic bearing drops the shaft. The coast-down bearing also includes a plurality of slots disposed between adjacent ones of the plurality of segments.