Pumps – Motor driven – Fluid motor
Reexamination Certificate
2008-05-06
2008-05-06
Kramer, Devon C. (Department: 3746)
Pumps
Motor driven
Fluid motor
C417S387000, C417S395000, C137S625660
Reexamination Certificate
active
07367785
ABSTRACT:
A valve for a gas-driven motor and a valve assembly and reciprocating pump incorporating the valve are provided. The valve includes a shiftable valve for alternatively supplying a motive gas through first and second supply ports to opposed first and second power pistons in opposed motive gas chambers, respectively, and for effecting alternating exhaust of said chambers. The shiftable valve has a front face with a valve projection located thereon and a rear face with a valve projection located thereon.
REFERENCES:
patent: 1599275 (1926-09-01), Schultz et al.
patent: 2679209 (1954-05-01), Fischer et al.
patent: 3652187 (1972-03-01), Loeffler et al.
patent: 3791768 (1974-02-01), Wanner
patent: 4381180 (1983-04-01), Sell
patent: 4436493 (1984-03-01), Credle, Jr.
patent: 4549467 (1985-10-01), Wilden et al.
patent: 4555222 (1985-11-01), Casilli
patent: 4682937 (1987-07-01), Credle, Jr.
patent: 4854832 (1989-08-01), Gardner et al.
patent: 5232352 (1993-08-01), Robinson
patent: 5277555 (1994-01-01), Robinson
patent: 5326234 (1994-07-01), Versaw et al.
patent: 5362212 (1994-11-01), Bowen et al.
patent: 5368452 (1994-11-01), Johnson et al.
patent: 5391060 (1995-02-01), Kozumplik, Jr. et al.
patent: 5567118 (1996-10-01), Grgurich et al.
patent: 5584666 (1996-12-01), Kozumplik, Jr. et al.
patent: 5957670 (1999-09-01), Duncan et al.
patent: 6241487 (2001-06-01), Reynolds
patent: 6722256 (2004-04-01), Roberts et al.
patent: 6901960 (2005-06-01), Roberts et al.
patent: 1687300 (1991-10-01), None
Bertheaud Peter J
Ingersoll-Rand Company
Kramer Devon C.
Michael & Best & Friedrich LLP
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