Valves and valve actuation – Detachable actuator
Reexamination Certificate
2006-04-18
2006-04-18
Keasel, Eric (Department: 3754)
Valves and valve actuation
Detachable actuator
C251S061400
Reexamination Certificate
active
07028986
ABSTRACT:
A valve actuator apparatus and method comprises an operator housing secured to a bonnet assembly. The bonnet assembly is secured to the valve body, and includes a bonnet stem movably within a bonnet housing for moving a gate within the valve body to open and close the valve. A downstop member is fixably secured to the bonnet stem and engages removable stem spacers which are added or removed to obtain a selected bonnet stem drift setting. The operator housing connects to a base ring that surrounds the bonnet housing and rotates to allow positioning of a fluid port in the operator housing. The operator housing may removed and replaced without altering the bonnet stem drift adjustment. A top shaft extends from the operator housing and rotates with respect to the bonnet stem to prevent torque transmission from the top shaft to the bonnet stem. A replaceable sealing cartridge sealingly supports the top shaft for axial movement within the operator housing.
REFERENCES:
patent: 2548847 (1951-04-01), Rossmann et al.
patent: 2892608 (1959-06-01), Collins
patent: 3446241 (1969-05-01), Skoli
patent: 3602478 (1971-08-01), Caims
patent: 3608912 (1971-09-01), Templin
patent: 3896835 (1975-07-01), Wicke
patent: 3958592 (1976-05-01), Wells et al.
patent: 3985151 (1976-10-01), Smith
patent: RE29322 (1977-07-01), Nelson
patent: 4129283 (1978-12-01), Taylor
patent: 4135547 (1979-01-01), Akkerman et al.
patent: 4139016 (1979-02-01), Byrnes
patent: 4157167 (1979-06-01), Akkerman
patent: 4199131 (1980-04-01), Boski et al.
patent: 4271857 (1981-06-01), Rowe
patent: 4354425 (1982-10-01), Bruton et al.
patent: 4372333 (1983-02-01), Goans
patent: 4489756 (1984-12-01), Balz
patent: 4568058 (1986-02-01), Shelton
patent: 4585207 (1986-04-01), Shelton
patent: 4682757 (1987-07-01), Shelton
patent: 4783046 (1988-11-01), Young et al.
patent: 5067510 (1991-11-01), Breaux et al.
patent: 6015134 (2000-01-01), Johnson
patent: 6089531 (2000-07-01), Young
patent: 6250605 (2001-06-01), Young
patent: 6450477 (2002-09-01), Young
patent: 2147051 (1985-05-01), None
RD-PRESCO-DYNE Bulletin 650, admitted prior art.
W-K-M Surface Safety System; Cooper Industries; Flow Control; Catalog S., Issue 5, Copyright 1989; (pp. 1-24).
Automatic Safety Valve; Cameron; Oil Tool Products, 1970-1971, ( 2 pgs), (undated).
LCR Actuator; Operating Manual for Cameron LC ROCS-1 Actuators Which meet ANS/ASME SPPE-1 and API Specification 14D Requirements; Cameron Iron Works, Inc.; Engineering Bulletin No. 170, Dec. 5, 1969, (24 pgs).
Description of Cameron Type “A” Fail-Safe Valve, Cooper Iron Works, Inc., Engineering Bulletin No. 170, Dec. 5, 1969, (4 pgs).
Bonnet Assembly, Baker CAC, Inc., Unit no. 880-66-7341; Jun. 15, 1999; (1 pg).
Surface Safety Valve(SSV)Hydraulic Actuator, McEvoy-Willis, Catalog No. 103-A, Feb. 1987, (8 pgs).
Gate Valves, Cameron Oil Tool Division, Cameron Iron Works, Inc., 1997, (7 pgs).
LCR and HLCR Actuators and Accessories, Cameron Iron Works, inc., 1986-1987 General Catalog, (2 pgs).
Cameron Automatic Safety Valves, Cameron Iron Works, inc., Cameron Oil Products, 1972-1973 (3 pgs).
Cameron Gate Valve Products, Cameron Iron Works, Inc., (Undated), (pp. 1312-1342).
Product Bulletin: “Dia-Flex Pneumatic Actuator: Maintenance and Operating Instructions: Product Commodity no. 885-92”, pp. 1-10, Baker CAC, Houston, Texas, Aug. 10, 1988.
Flyer: “Surface Safety Equipment: Guardian Series G1000; Diaphragm Pneumatic Actuator”, 1 page.
Catalogue: “W-K-M Safety Systems (Cont'd): Pow-R-Gard SSV Actuators for 20,000 and 30,000 psi Service”, W-K-M Safety Systems, Houston, Texas, p. 6582.
Catalogue: “Surface Safety System (Cont'd): Saf-T-Gard SSV Actuators; Saf-T-Gard SSV Actuators”, W-K-M Safety Systems, Houston, Texas, pp. 7532-7533.
Flyer: “RD-Presco-Dyne: Rolling Diaphragm Valve Actuator; Pneumatically Powered with Spring Return”, Barber Industries, Ltd., Calgary, Alberta, Canada, 4 pages.
Axelson, “Manumatic” Diaphragm Gate Calve Actuator, (dated 1985 according to opposing counsel in pending litigation).
Keasel Eric
Patterson & Sheridan L.L.P.
Safoco, Inc.
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