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:
Jun. 09, 2010
Applicants:
Jason D. Holt, St. Charles, IL (US);
Robert R. Schaser, Hampshire, IL (US);
Jeremy R. D. Tuttle, Dearborn, IL (US);
Inventors:
Jason D. Holt, St. Charles, IL (US);
Robert R. Schaser, Hampshire, IL (US);
Jeremy R. D. Tuttle, Dearborn, IL (US);
Assignee:
Illinois Tool Works Inc., Glenview, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 1/32 (2006.01); F16F 1/34 (2006.01); F02M 61/16 (2006.01); F02M 61/14 (2006.01);
U.S. Cl.
CPC ...
F16F 1/328 (2013.01); F16F 1/32 (2013.01); F02M 61/14 (2013.01); F16F 1/34 (2013.01); F02M 61/166 (2013.01);
Abstract
An annular two-phase spring has a plurality of first waves providing a first spring rate and a plurality of second waves providing a second spring rate. The two-phase spring can be used for installing a fuel injector in a fuel injector bore to improve sound performance.