Fluid handling – Line condition change responsive valves – Direct response valves
Reexamination Certificate
2007-11-06
2007-11-06
Rivell, John (Department: 3753)
Fluid handling
Line condition change responsive valves
Direct response valves
C251S065000, C251S083000, C417S446000, C417S505000
Reexamination Certificate
active
11013590
ABSTRACT:
A valve for causing pulsatile flow in a multi-piston plunger pump includes a valve poppet, a valve seat, and a spring biasing the valve poppet against the valve seat; and a mechanism holding the valve poppet in an open position, thereby producing pulsatile flow from the pump. The mechanism includes a magnet and an adjustment mechanism for moving the magnet toward and away from the valve poppet. When the magnet is moved toward the valve poppet, the magnet attracts the poppet away from the valve seat, and when the magnet is moved away from the valve poppet, the magnet releases the poppet. The spring then biases the poppet against the valve seat in a closed position.
REFERENCES:
patent: 2336526 (1943-12-01), Bristol
patent: 2362750 (1944-11-01), Hayward
patent: 2693933 (1954-11-01), Meinke
patent: 2700395 (1955-01-01), Young
patent: 2824759 (1958-02-01), Tracy
patent: 3181473 (1965-05-01), Duron
patent: 3416453 (1968-12-01), Feuillebois et al
patent: 3600101 (1971-08-01), Oglesby et al.
patent: 3602613 (1971-08-01), Gunther et al.
patent: 3829255 (1974-08-01), Bykov et al.
patent: 3874678 (1975-04-01), Potter
patent: 3930756 (1976-01-01), Bruggeman
patent: 4027744 (1977-06-01), Kuhnelt et al.
patent: 4232695 (1980-11-01), Roberge
patent: 4239460 (1980-12-01), Golz
patent: 4350182 (1982-09-01), Gottling et al.
patent: 4351531 (1982-09-01), Maasberg et al.
patent: 4408767 (1983-10-01), Kako
patent: 4420935 (1983-12-01), Kobald
patent: 4574833 (1986-03-01), Custer
patent: 4700668 (1987-10-01), Schierling et al.
patent: 4714199 (1987-12-01), Heath et al.
patent: 4785842 (1988-11-01), Johnson, Jr.
patent: 4900039 (1990-02-01), Klecker et al.
patent: 4913628 (1990-04-01), Samland et al.
patent: 5026259 (1991-06-01), Whitehead et al.
patent: 5069239 (1991-12-01), Bunce et al.
patent: 5114160 (1992-05-01), Ootsuka et al.
patent: 5143515 (1992-09-01), Boster et al.
patent: 5249812 (1993-10-01), Volden et al.
patent: 5338160 (1994-08-01), Thurner
patent: 5421892 (1995-06-01), Miyagi
patent: 5580225 (1996-12-01), Salecker
patent: 5984650 (1999-11-01), Okubo et al.
patent: 6015270 (2000-01-01), Roth
patent: 6045334 (2000-04-01), Murphy et al.
patent: 6158972 (2000-12-01), Ruth
patent: 6178951 (2001-01-01), Doreau et al.
patent: 6227818 (2001-05-01), Falk et al.
patent: 6705432 (2004-03-01), Conley et al.
patent: 6810998 (2004-11-01), Conley et al.
patent: 1195121 (1965-06-01), None
patent: 10058049 (2002-05-01), None
patent: 10256754 (2004-07-01), None
patent: 2057639 (1981-04-01), None
patent: WO2004/072477 (2004-08-01), None
patent: WO2005/005830 (2005-01-01), None
CAT PUMPS brochure, 18 Frame Block-Style Stainless Steel Plunger Pump, four pages.
CAT PUMPS brochure, 7 Frame Plunger Pump, four pages.
How Cat Pumps Work?, www.catpumps.com, three pages.
Briggs and Morgan P.A.
Diversified Dynamics Corporation
Helget Gerald E.
Rivell John
LandOfFree
Pulsation causing valve for a plural piston pump does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pulsation causing valve for a plural piston pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulsation causing valve for a plural piston pump will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3849337