Pumps – Motor driven – Fluid motor
Reexamination Certificate
2011-07-19
2011-07-19
Freay, Charles G (Department: 3746)
Pumps
Motor driven
Fluid motor
C417S383000, C417S384000
Reexamination Certificate
active
07980834
ABSTRACT:
A pump for boosting pressure of liquid color for injection into plastic resin in molding or extrusion apparatus includes a housing having a first bore extending in a first direction and second and third bores extending through the housing and communicating with the first bore proximate a first end of the first bore with the first end of the first bore being blind. The pump further includes an inlet check valve connectable to the second bore for permitting liquid flow through the second bore into the first bore. Further included is an outlet check valve connective to the third bore for permitting liquid flow out of the first bore through the third bore. A member is reciprocally axially movable within the first bore. A solenoid applies air pulses to the end of the first member facing oppositely from the blind end of the first bore.
REFERENCES:
patent: 600233 (1898-03-01), Palm
patent: 1451759 (1923-04-01), Bruhn
patent: 1489348 (1924-04-01), Hampton
patent: 2186646 (1940-01-01), Lincoln et al.
patent: 2188646 (1940-01-01), Bunch
patent: 2199657 (1940-05-01), Bunch
patent: 2606696 (1952-08-01), Miner
patent: 2656828 (1953-10-01), Conover
patent: 2665825 (1954-01-01), Poitras et al.
patent: 2701881 (1955-02-01), McGee
patent: 2909315 (1959-10-01), Sampietro
patent: 3518033 (1970-06-01), Anderson
patent: 3814388 (1974-06-01), Jakob
patent: 3957399 (1976-05-01), Siczek
patent: 3988088 (1976-10-01), King et al.
patent: 3998103 (1976-12-01), Bjorklund et al.
patent: 4185948 (1980-01-01), Maguire
patent: 4473173 (1984-09-01), DeGroff et al.
patent: 4501405 (1985-02-01), Usry
patent: 4571416 (1986-02-01), Jarzombek et al.
patent: 4586882 (1986-05-01), Tseng
patent: 4606710 (1986-08-01), Maguire
patent: 4621990 (1986-11-01), Forsythe et al.
patent: 4657490 (1987-04-01), Abbott
patent: 4967940 (1990-11-01), Blette et al.
patent: 5039279 (1991-08-01), Natwick et al.
patent: 5199852 (1993-04-01), Danby
patent: 5215215 (1993-06-01), Sauer
patent: 5225210 (1993-07-01), Shimoda
patent: 5344232 (1994-09-01), Nelson et al.
patent: 5364242 (1994-11-01), Olsen
patent: 5980490 (1999-11-01), Tsoukalis
patent: 5988983 (1999-11-01), Furusawa
patent: 6007236 (1999-12-01), Maguire
patent: 6057514 (2000-05-01), Maguire
patent: 6188936 (2001-02-01), Maguire et al.
patent: 6213739 (2001-04-01), Phallen et al.
patent: 6386841 (2002-05-01), Probst
patent: 6402363 (2002-06-01), Maguire
patent: 6599005 (2003-07-01), van Der Wei
patent: 6719453 (2004-04-01), Cosman et al.
patent: 6880965 (2005-04-01), Sheffield, Jr.
patent: 7154069 (2006-12-01), Gordon
patent: 7287966 (2007-10-01), French et al.
patent: 7419367 (2008-09-01), Rijnberg
patent: 7726950 (2010-06-01), Hansen et al.
patent: 2002/0031822 (2002-03-01), van der Wei et al.
patent: 2003/0142580 (2003-07-01), Maguire
patent: 2003/0218014 (2003-11-01), Gregory et al.
patent: 2005/0052945 (2005-03-01), Maguire
patent: 3433693 (1986-03-01), None
patent: 1145752 (1969-03-01), None
International Search Report dated Feb. 20, 2003 in connection with international application PCT/US02/02934 corresponding to U.S. Appl. No. 10/066,338, published as publication No. 2003/0142580.
Written Opinion dated Mar. 24, 2003 in connection with international application PCT/US02/02934 corresponding to U.S. Appl. No. 10/066,338, published as publication No. 2003/0142580.
Forty-four page two-sided brochure including cover and back pages entitled “Maguire: Auxiliary equipment for the plastics industry” of Maguire Products, Inc., Oct. 2000.
Two-sided color brochure entitled Maguire: Model MPA Liquid Color Pump, Maguire Products, Inc., undated.
Thirty-two page catalog entitled “Maguire Color Blending Equipment” published by Maguire Products, Inc., 1993.
Fox Rothschild LLP
Freay Charles G
Jacobs Todd D
Quinn, Esq. Charles N.
LandOfFree
Liquid color injection pressure booster pump and pumping... 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 color injection pressure booster pump and pumping..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid color injection pressure booster pump and pumping... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2730964