Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Passage or casing attached removable liner or wear member
Reexamination Certificate
2005-10-11
2005-10-11
Look, Edward K. (Department: 3745)
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Passage or casing attached removable liner or wear member
C415S206000
Reexamination Certificate
active
06953321
ABSTRACT:
A selectively configured volute for incorporation into a centrifugal pump of the volute type is disclosed for use in processing heavy duty slurries that are characterized by containing particularly large and/or abrasive particulates that are known to degrade the pump casing or pump casing liner. The configured volute of the present invention is particularly suitable for use in connection with the use of an impeller having expelling vanes that aggressively pump out slurry from the seal face of the pump. The configured volute of the present invention provides resistance to wear when processing heavy duty slurries and provides stable flow performance and improved pump performance.
REFERENCES:
patent: 132829 (1872-11-01), Harris
patent: 834848 (1906-10-01), Price
patent: 1107591 (1914-08-01), DeHuff
patent: RE14988 (1920-11-01), Parsons
patent: 1585669 (1926-05-01), Hansen
patent: 2163464 (1939-06-01), Llewellyn
patent: 2190245 (1940-02-01), Sartell
patent: 2312422 (1943-03-01), Kumlin et al.
patent: 2353871 (1944-07-01), Bowen
patent: 2471174 (1949-05-01), Trumpler
patent: 2515398 (1950-07-01), Derocher
patent: 2635548 (1953-04-01), Brawley
patent: 2851289 (1958-09-01), Pedersen
patent: 2992617 (1961-07-01), Kroeger
patent: 2999628 (1961-09-01), Crombie
patent: 3018736 (1962-01-01), Clay
patent: 3115099 (1963-12-01), Clay
patent: 3265002 (1966-08-01), Warman
patent: 3306216 (1967-02-01), Warman
patent: 3316848 (1967-05-01), Egger
patent: 3318254 (1967-05-01), Palmberg et al.
patent: 3460748 (1969-08-01), Erwin
patent: 3628881 (1971-12-01), Herrmann
patent: 3656861 (1972-04-01), Zagar
patent: 3689931 (1972-09-01), Fortis
patent: 3732028 (1973-05-01), Heynemanns et al.
patent: 3743437 (1973-07-01), Warren
patent: 3758227 (1973-09-01), Pollak et al.
patent: 3824029 (1974-07-01), Fabri et al.
patent: 4213742 (1980-07-01), Henshaw
patent: 4234291 (1980-11-01), Hurst et al.
patent: 4264273 (1981-04-01), Grzina
patent: 4381171 (1983-04-01), Chapple
patent: 4917571 (1990-04-01), Hyll et al.
patent: 5040947 (1991-08-01), Kajiwara et al.
patent: 5127800 (1992-07-01), Hyll et al.
patent: 5605442 (1997-02-01), Wilson et al.
patent: 2220050 (1973-11-01), None
patent: 2235193 (1974-02-01), None
patent: 972528 (1950-08-01), None
patent: 2 062 102 (1981-05-01), None
patent: 1247582 (1983-05-01), None
patent: 681-221 (1978-03-01), None
patent: 798-359 (1978-12-01), None
patent: 781-395 (1979-04-01), None
patent: 676-760 (1979-07-01), None
patent: 885-615 (1981-11-01), None
patent: WO 96/27085 (1996-09-01), None
Addison, H., Centrifugal and Other Rotodynamic Pumps, 3rdEd. London: Chapman & Hall (1966), pp. 47-53, 101-102.
Cheremisinoff, N., Fluid Flow, Pumps, Pipes and Channels, Ann Arbor, Michigan: Ann Arbor Science Publishers, Inc. (1981) pp. 269, 294, 296.
Lazarkiewicz, S., et al., Impeller Pumps, Warsaw: Pergamon Press (1965) pp. 269-276, 280-281.
Product Brochure Form 3759, Warman International, Inc. “Heavy-Duty Slurry Pumps”, 12 pgs.
Schlichting, H., Boundary Layer Theory, New York: McGraw Hill Book Co. (1979), pp. 525-526, 528-536.
Pumping Manual, 7thEd., Gulf Publishing Co., Houston, Texas: Gulf Publishing Co. (1984), p 389.
Abarca Melo Ricardo Augusto
Bourgeois Ronald J.
Roudnev Aleksander S.
Edgar Richard A.
Look Edward K.
Morriss O′Bryant Compagni
Weir Slurry Group, Inc.
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