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:
Jan. 18, 2011
Filed:
Aug. 31, 2004
Applicants:
David Zawilinski, West Granby, CT (US);
W. Clark Dean, Simsbury, CT (US);
Inventors:
David Zawilinski, West Granby, CT (US);
W. Clark Dean, Simsbury, CT (US);
Assignee:
Hamilton Sundstrand Corporation, Windsor Locks, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16F 13/04 (2006.01); F01D 25/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A damped spring assembly includes a helical spring. The helical spring is movable along an axis and has a winding direction. A damper is movable along the axis and includes a helical shape. The damper is wound in a direction opposite the winding direction. The damper applies a radial load to the spring for damping movement of the spring along the axis as the spring vibrates. The damper has a very low axial spring rate and it contributes very little to the axial load provided by the spring.