Rotary expansible chamber devices – Multistage – Interengaging rotary members
Reexamination Certificate
2006-11-07
2006-11-07
Trieu, Theresa (Department: 3748)
Rotary expansible chamber devices
Multistage
Interengaging rotary members
C418S005000, C418S013000, C418S058000, C418S061100, C418S206100
Reexamination Certificate
active
07131826
ABSTRACT:
A blending pump assembly for accurately maintaining the proper ratio of two fluid components. Flow of a first fluid is utilized to drive a fluid motor, which in turn drives a pumping mechanism to inject a proportional amount of a second fluid into the flow of the first fluid. The fluid motor and pump are sized so that a predetermined ratio between the two fluids is maintained regardless of changes in pressure and flow rate of such first fluid.
REFERENCES:
patent: 2779291 (1957-01-01), Albright
patent: 2833224 (1958-05-01), Meyer et al.
patent: 2966860 (1961-01-01), Maynard
patent: 3067590 (1962-12-01), Wood, Jr.
patent: 3139834 (1964-07-01), Blomgren et al.
patent: 3614275 (1971-10-01), Eibsen
patent: 3719383 (1973-03-01), Ferro
patent: 3821963 (1974-07-01), Olson et al.
patent: 3894722 (1975-07-01), Jones
patent: 3951575 (1976-04-01), Motomura et al.
patent: 4026681 (1977-05-01), Roskelley
patent: RE29620 (1978-05-01), Picker
patent: 4278132 (1981-07-01), Hostetter
patent: 4511378 (1985-04-01), Greene
patent: 4747762 (1988-05-01), Fairbairn
patent: 5012837 (1991-05-01), Zepp
patent: 5150742 (1992-09-01), Motohashi et al.
patent: 5297945 (1994-03-01), Loubier et al.
patent: 5466131 (1995-11-01), Altham et al.
patent: 5492556 (1996-02-01), Garrett
patent: 5588088 (1996-12-01), Flaman
patent: 5725362 (1998-03-01), Zepp et al.
patent: RE35780 (1998-05-01), Hassell et al.
patent: 6029688 (2000-02-01), Kaufman
patent: 6036453 (2000-03-01), Zepp et al.
patent: 6325604 (2001-12-01), Du
patent: 6357466 (2002-03-01), Walton et al.
patent: 6431198 (2002-08-01), Walton et al.
patent: 2001/0031215 (2001-10-01), Klassen
patent: 2002/0017320 (2002-02-01), Walton et al.
patent: 56014889 (1981-02-01), None
International Dispensing Corporation
Trieu Theresa
Whiteford Taylor & Preston
LandOfFree
Blending pump assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Blending pump assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blending pump assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3680968