Piston assembly for rotary hydraulic machines

Details Piston assembly for rotary hydraulic machines Piston assembly for rotary hydraulic machines

2008-04-29

2008-04-29

Kramer, Devon C. (Department: 3746)

Pumps

Three or more cylinders arranged in parallel, radial, or...

C417S572000, C417S222100, C092S188000

Reexamination Certificate

active

07364409

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.

REFERENCES:
patent: 3252426 (1966-05-01), Parr
patent: 3306209 (1967-02-01), Tyler
patent: 3791703 (1974-02-01), Ifield
patent: 3834836 (1974-09-01), Hein et al.
patent: 3846049 (1974-11-01), Douglas
patent: 3922854 (1975-12-01), Coeurderoy
patent: 3963039 (1976-06-01), Coeurderoy
patent: 4077746 (1978-03-01), Reynolds
patent: 4097196 (1978-06-01), Habiger
patent: 4129063 (1978-12-01), Ifield
patent: 4540221 (1985-09-01), Frazer
patent: 4540345 (1985-09-01), Frazer
patent: 4850544 (1989-07-01), Snijders
patent: 5076377 (1991-12-01), Frazer
patent: 5490446 (1996-02-01), Engel
patent: 5813315 (1998-09-01), Kristensen et al.
patent: 6408972 (2002-06-01), Rodgers et al.
patent: 6422831 (2002-07-01), Ito et al.
patent: 6431051 (2002-08-01), Stoppek et al.
patent: 6578549 (2003-06-01), Bordini
patent: 6619325 (2003-09-01), Gray, Jr.
patent: 6708787 (2004-03-01), Naruse et al.
patent: 6708789 (2004-03-01), Albuquerque De Souza E Silva
patent: 6712166 (2004-03-01), Rush et al.
patent: 6719080 (2004-04-01), Gray, Jr.
patent: 6820356 (2004-11-01), Naruse et al.
patent: 6899190 (2005-05-01), Bordini
patent: 6912849 (2005-07-01), Inoue et al.
patent: 6922989 (2005-08-01), Nagura et al.
patent: 6922990 (2005-08-01), Naruse et al.
patent: 6932733 (2005-08-01), Pollman
patent: 6959545 (2005-11-01), Lippert et al.
patent: 6962050 (2005-11-01), Hiraki et al.
patent: 6971232 (2005-12-01), Singh
patent: 6973782 (2005-12-01), Rose
patent: 102005027940 (2006-01-01), None
patent: 00245308 (1991-08-01), None
patent: 00893698 (1999-01-01), None
patent: 00762957 (2001-03-01), None
patent: 00854793 (2002-04-01), None
patent: 1199204 (2002-04-01), None
patent: 01223066 (2002-07-01), None
patent: 01228917 (2002-08-01), None
patent: 1342937 (2003-10-01), None
patent: 01600372 (2005-11-01), None
patent: 01628028 (2006-02-01), None
patent: 02386164 (2003-09-01), None
patent: WO 8702952 (1987-05-01), None
patent: WO 8705574 (1987-09-01), None
patent: WO 9834212 (1996-10-01), None
patent: WO 0013952 (2000-03-01), None
patent: WO 0102715 (2001-01-01), None
patent: WO 0148387 (2001-07-01), None
patent: WO 0151870 (2001-07-01), None
patent: WO 0188381 (2001-11-01), None
patent: WO 0243980 (2002-06-01), None
patent: WO 0246621 (2002-06-01), None
patent: WO 03048627 (2003-06-01), None
patent: WO 03052302 (2003-06-01), None
patent: WO 03106816 (2003-12-01), None
patent: WO 2004025122 (2004-03-01), None
patent: WO 2004033906 (2004-04-01), None
patent: WO 2004081380 (2004-09-01), None
patent: WO 2005014324 (2005-02-01), None
patent: WO 2005061904 (2005-07-01), None
patent: WO 2005068849 (2005-07-01), None
patent: WO 2005075233 (2005-08-01), None
patent: WO 2005087567 (2005-09-01), None
patent: WO 2005088137 (2005-09-01), None
patent: WO 2005095800 (2005-10-01), None
patent: WO 2006006985 (2006-01-01), None
patent: WO 2006027938 (2006-03-01), None
patent: WO 2006038968 (2006-04-01), None
patent: WO 2006055978 (2006-05-01), None
U.S. Appl. No. 11/233,822, filed Feb. 2, 2006, Gray, Jr.
U.S. Appl. No. 10/883,312, filed Jan. 5, 2006, Teslak et al.
U.S. Appl. No. 10/883,320, filed Jan. 5, 2006, Teslak et al.
U.S. Appl. No. 10/883,311, filed Jan. 5, 2006, Teslak et al.
U.S. Appl. No. 10/883,292, filed Jan. 5, 2006, Teslak et al.
U.S. Appl. No. 11/173,566, filed Nov. 3, 2005, Gray, Jr. et al.
U.S. Appl. No. 11/130,893, filed Sep. 22, 2005, Gray, Jr.
U.S. Appl. No. 11/074,147, filed Sep. 8, 2005, Moskalik et al.
U.S. Appl. No. 10/768,849, filed Aug. 4, 2005, Roethler et al.
U.S. Appl. No. 11/087,681, filed Jul. 28, 2005, Yang.
U.S. Appl. No. 10/516,960, Jul. 28, 2005, Russel-Smith.
U.S. Appl. No. 10/769,459, filed Dec. 16, 2004, Gray, Jr. et al.
U.S. Appl. No. 10/780,112, filed Sep. 9, 2004, Rush et al.
U.S. Appl. No. 10/275,070, filed May 29, 2003, Hiraki et al.
U.S. Appl. No. 10/168,302, filed Dec. 19, 2002, Bruun.
U.S. Appl. No. 09/798,144, filed Dec. 6, 2001, Rush et al.
International Search Report; Apr. 11, 2005 (2 Pages).

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