Piston assembly for rotary hydraulic machines

United States of America Patent

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Apr 29, 2008
Grant Date
Aug 11, 2005
app pub date
Feb 11, 2004
filing date
Feb 11, 2004

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Abstract

A piston assembly for a hydraulic machine is formed with a part spherical cavity in the piston to receive a spherical bearing of a slipper assembly. The spherical bearing is secured in the cavity by swaging the walls of the piston and subsequently working the wall to provide a clearance to allow relative rotation.

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Patent Owner(s)

CONCENTRIC ROCKFORD INC.;VOICEBOX TECHNOLOGIES CORPORATION

International Classification(s)

F04B:POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Kadlicko, George	Rockford, IL	30	324

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Piston assembly for rotary hydraulic machines

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United States of America Patent

10776770

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PATENT NO	7364409
APP PUB NO	20050175471A1
SERIAL NO	10776770
DOCKET NO

US Family Size	Non-US Coverage
Patent Longevity	Forward Citations

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
April 29, 2008	US,7364409,B2 US7364409B2	GRANTED PATENT AS SECOND PUBLICATION
August 11, 2005	US,20050175471,A1 US20050175471A1	FIRST PUBLISHED PATENT APPLICATION

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10776770

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