Valves and valve actuation – Valve – Seats
Reexamination Certificate
2006-07-18
2006-07-18
Look, Edward K. (Department: 3751)
Valves and valve actuation
Valve
Seats
C251S360000
Reexamination Certificate
active
07077384
ABSTRACT:
A control valve having a seat ring assembly constructed from a unitary piece of material is disclosed. The seat ring assembly may include a base which serves as a valve seat for the valve plug of the valve, and which includes a plurality of exterior threads adapted to rotatably attach to a plurality of interior threads provided within the valve body. The seat ring assembly may also include a post-guided bearing surface to maintain alignment of the valve plug to the valve seat. The seat ring assembly can be secured to the valve body simply by threadably attaching the elements. Moreover, by providing the valve seat and the guide surface as integral parts of the seat ring assembly, manufacturing costs and maintenance requirements are reduced and subsequent seal leak performance is increased.
REFERENCES:
patent: 807476 (1905-12-01), Leidecker
patent: 828216 (1906-08-01), Kieren
patent: 1542612 (1925-06-01), Collar
patent: 1706123 (1929-03-01), McBride
patent: 1908440 (1933-05-01), Milton
patent: 3762685 (1973-10-01), Curran
patent: 4041973 (1977-08-01), Rice et al.
patent: 4542879 (1985-09-01), Stein
patent: 5763814 (1998-06-01), Avory et al.
Copy of International Search Report for International Patent Application No. PCT/US04/040601, dated Apr. 5, 2005, 8 pages.
Copy of Written Opinion for International Patent Application No. PCT/US04/040601, dated Apr. 5, 2005, 6 pages.
“Design EB Specifications C & D Valve Bodies (Obsolete Product),” Fisher-Rosemount, Nov. 1998.
“Class 125 through 600 Design ES and EAS easy-e® Valves,” Instruction Manual Form 5030, Fisher-Rosemount, Jan. 2001.
“Design EZ easy-e® Control Valve,” Instruction Manual, Form 5118, Emerson Process Management, Nov. 2001.
“Design ET and EAT easy-e® Valves Class 125 through 600,” Instruction Manual, Form 5081, Emerson Process Management, Jun. 2002.
“Design EZ easy-e® Control Valve,” Instruction Manual, Emerson Process Management, Jul. 2002.
“Bulletin 51.1:EB(10),” p. 3, Fisher Controls, no date given.
Fisher Controls International LLC.
Fristoe Jr. John K.
Look Edward K.
Marshall & Gerstein & Borun LLP
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