Pumps – Motor driven – Electric or magnetic motor
Reexamination Certificate
2006-02-21
2006-02-21
Solak, Timothy P. (Department: 3746)
Pumps
Motor driven
Electric or magnetic motor
C417S038000, C417S044100, C417S410100, C417S415000, C417S416000, C417S555100, C417S554000, C417S551000
Reexamination Certificate
active
07001158
ABSTRACT:
Digital fluid pumps having first and second electromagnetic actuators formed in part by a piston to alternately drive the piston in opposite directions for pumping purposes. The piston motion is intentionally limited so that the electromagnetic actuators may operate with a high flux density to provide an output pressure higher than that obtained with conventional solenoid actuated pumps. The electromagnetic actuator coils are electrically pulsed for each pumping cycle as required to maintain the desired fluid flow and output pressure, with the piston being magnetically latchable at one or both extreme positions between pulses. Alternate embodiments and control methods and systems are disclosed.
REFERENCES:
patent: 1684468 (1928-09-01), Brown
patent: 2515110 (1950-07-01), Bornstein
patent: 2690128 (1954-09-01), Basilewsky
patent: 3282219 (1966-11-01), Blackwell et al.
patent: 3384021 (1968-05-01), Perron
patent: 3422765 (1969-01-01), Schoch
patent: 3542495 (1970-11-01), Barthalon
patent: 3754154 (1973-08-01), Massie
patent: 3791770 (1974-02-01), Farkos
patent: 3884125 (1975-05-01), Massie
patent: 3894817 (1975-07-01), Majoros et al.
patent: 4692673 (1987-09-01), DeLong
patent: 5055758 (1991-10-01), Hock
patent: 5100304 (1992-03-01), Osada et al.
patent: 5106268 (1992-04-01), Kawamura et al.
patent: 5403168 (1995-04-01), Evenson
patent: 5509792 (1996-04-01), Sullivan et al.
patent: 5937829 (1999-08-01), Endou
patent: 6127750 (2000-10-01), Dadd
patent: 6129073 (2000-10-01), Yamakado et al.
patent: 6237617 (2001-05-01), Sturman et al.
patent: 6308690 (2001-10-01), Sturman
Delphi Automotive Systems, “Electronic Returnless Fuel System Product Information”, 1997, Flint, Michigan.
Delphi Automotive Systems, “In-Tank Electric Fuel Pumps Medium and High Pressure Turbine Production Information”, 1997, Flint, Michigan.
Airtex Products, Master Parts Division, “Domestic and Import Fuel Pumps and Assemblies— Fuel Filters for Fuel Injected-Carbureted Systems Catalog FP97”, 1997, pp. 127-139 and 156-157, Fairfield, Illinois.
Artemis Intelligent Power Ltd, “Digital Displacement Pump Product Information”, Dec. 8, 2001, Scotland, UK.
ACDELCO, “Fuel Pumps Product Information”, Feb. 12 , 2002.
Visteon Corporation, “Innovations: Brushless Fuel Pump” Sep. 11, 2001.
MEDO USA, Inc., “Pump and Air Compressor Features and Applications Production Information”, Feb. 25, 2002, Hanover Park, Illinois.
Blakely , Sokoloff, Taylor & Zafman LLP
Solak Timothy P.
Sturman Industries, Inc.
LandOfFree
Digital fluid 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 Digital fluid pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital fluid pump will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3692923