Spring brake actuator with hot set spring

United States of America Patent

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Sep 30, 2003
Grant Date
Oct 3, 2002
app pub date
Apr 3, 2001
filing date
Apr 3, 2001

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Abstract

A spring brake actuator has a sealed spring chamber with a hot set large force compression spring. An alternative embodiment has the hot set spring guided by the actuator rod.

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Patent Owner(s)

Patent Owner	Address
HALDEX BRAKE CORPORATION	10930 NORTH POMONA AVENUE KANSAS CITY MO 64153

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F15B:SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUI....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Bowyer, John P	Whitehall, MI	6	103

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Spring brake actuator with hot set spring

Number of patents in Portfolio can not be more than 2000

United States of America Patent

09825428

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PATENT NO	6626083
APP PUB NO	20020139242A1
SERIAL NO	09825428
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
September 30, 2003	US,6626083,B2 US6626083B2	GRANTED PATENT AS SECOND PUBLICATION
October 03, 2002	US,20020139242,A1 US20020139242A1	FIRST PUBLISHED PATENT APPLICATION

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09825428

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