Two-phase spring

United States of America Patent

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Nov 4, 2014
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Jun 9, 2010
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Jun 29, 2009

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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.

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ILLINOIS TOOL WORKS INC	3600 WEST LAKE AVENUE GLENVIEW IL 60026

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Inventor Name	Address	# of filed Patents	Total Citations
Holt, Jason D	St. Charles, US	17	136
Schaser, Robert R	Hampshire, US	12	110
Tuttle, Jeremy R D	Dearborn, US	7	43

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Two-phase spring

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United States of America Patent

13381252

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DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
November 04, 2014	US,8875683,B2 US8875683B2	GRANTED PATENT AS SECOND PUBLICATION
May 03, 2012	US,20120104120,A1 US20120104120A1	FIRST PUBLISHED PATENT APPLICATION

PATENT NO	8875683
SERIAL NO	13381252
DOCKET NO

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13381252

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