Fluid handling – Processes – Involving pressure control
Reexamination Certificate
2003-07-18
2009-06-09
Lee, Kevin L (Department: 3753)
Fluid handling
Processes
Involving pressure control
C137S487500, C137S487000, C251S126000
Reexamination Certificate
active
07543596
ABSTRACT:
Apparatus and a control system for monitoring (preferably digitally) and/or controlling pressure to a pneumatic load such as a proportional fluid control valve and using a measurement input from a fluid measurement device that responds to a flow rate, the liquid measurement input being used to control the pressure to the pneumatic load so that pneumatic load may be increased or decreased (to proportionally open or close the pneumatic valve) to change the flow rate of the fluid to a desired rate. The pneumatic load can also be adjusted (to proportionally open or close the pneumatic valve) to accommodate changes in temperature and viscosity of a fluid.
REFERENCES:
patent: 4705461 (1987-11-01), Clements
patent: 5251148 (1993-10-01), Haines et al.
patent: 5303731 (1994-04-01), Vavra et al.
patent: 5882408 (1999-03-01), Fujita
patent: 5983926 (1999-11-01), Mastuzawa
patent: 5985357 (1999-11-01), Sanada
patent: 6065492 (2000-05-01), Bergamini
patent: 6102071 (2000-08-01), Walton et al.
patent: 6152162 (2000-11-01), Balazy et al.
patent: 6173735 (2001-01-01), Perry, Jr. et al.
patent: 6190565 (2001-02-01), Bailey et al.
patent: 6348098 (2002-02-01), McLoughlin et al.
patent: 6539968 (2003-04-01), White et al.
patent: 6584999 (2003-07-01), Inayama et al.
patent: 6668848 (2003-12-01), Lafler et al.
patent: 6680078 (2004-01-01), Davlin et al.
patent: 7069944 (2006-07-01), Morikawa et al.
patent: 08-185229 (1996-07-01), None
patent: 11-85287 (1999-03-01), None
patent: 2001-236125 (2001-08-01), None
patent: 2002-149242 (2002-05-01), None
patent: 02/25391 (2002-03-01), None
The American Society of Mechanical Engineers; Sixth Edition 1971; “Fluid Meters—Their Theory and Application”; Report of ASME Research Committee on Fluid Meters.
The International Search Report dated Mar. 23, 2004.
Gashgaee Iraj
Gonnella George
Laverdiere Marc
Marrs Jennifer
McLoughlin Robert F.
Entegris, Inc.
Lee Kevin L
Nields, Lemack & Frame, LLC
LandOfFree
Liquid flow controller and precision dispense apparatus and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid flow controller and precision dispense apparatus and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid flow controller and precision dispense apparatus and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4056596