Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate
2006-06-06
2006-06-06
Fox, John (Department: 3753)
Fluid handling
Systems
Multi-way valve unit
Reexamination Certificate
active
07055548
ABSTRACT:
A fluid control valve trim and seat with a valve plug of a radius of about 0.03 inch, when used in conjunction with a valve seat angle of about 75°, results in minimal unbalance area. The valve trim is provided with pairs of anti-cavitation notches. The notches are arranged such that notches of each given pair are angled with respect to one another, and may be further arranged such that adjacent pairs of notches are off-set relative to one another, so as to increase the time fluid spends in the plenum, resulting in proper staging and controlled pressure drop as fluid passes through the valve.
REFERENCES:
patent: 3252480 (1966-05-01), Odendahl et al.
patent: 3469591 (1969-09-01), Odendahl
patent: 3971411 (1976-07-01), Baumann
patent: 3987809 (1976-10-01), Baumann
patent: 4044992 (1977-08-01), Jukoff
patent: 4479509 (1984-10-01), Dear et al.
patent: 4860993 (1989-08-01), Goode
patent: 5615708 (1997-04-01), Barron
patent: 5618025 (1997-04-01), Barron et al.
patent: 5765814 (1998-06-01), Dvorak et al.
patent: 5803119 (1998-09-01), Steinke
patent: 6003551 (1999-12-01), Wears
patent: 6701957 (2004-03-01), McCarty et al.
patent: 296 20 122 (1997-01-01), None
International Search Report issued for PCT/US2004/006368 on Jun. 30, 2004.
Written Opinion issued for PCT/US2004/006368 mailed on Jul. 9, 2004.
Patent Abstracts of Japan, vol. 1996, No. 4, JP 7 317920, Yamatake Honeywell Co. Ltd., Dec. 8, 1995.
Patent Abstracts of Japan, vol. 0101, No. 93, JP 61 038272, Yamatake Honeywell Co. Ltd., Feb. 24, 1986.
Mechanical drawing of product publicly available more than one year before May 30, 2003.
78200/18200 Series LINCOLNLOG™ Valves Anti-cavitation High Pressure Control Valves, Masoneilan, Oct. 1997.
78200 Series LINCOLNLOG™ High Pressure Control Valve Instructions, Rev. A, Masoneilan, Jun. 1989.
“Yarway® brochure —Turbo-Cascade® high pressure control valve” (1973).
Hamblin Nathan J.
Long Ted A.
Fisher Controls International LLC
Fox John
Marshall & Gerstein & Borun LLP
LandOfFree
Control valve trim and seat design for valve trim with... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control valve trim and seat design for valve trim with..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control valve trim and seat design for valve trim with... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3680070