Title of Invention

"CONTROL VALVE'

Abstract A guided control valve (10') comprising a vapor recovery area (50) that encourages collapse of vapor bubbles. In a cage-guided valve (10'), a seal comprising inner (56) and outer members (54) reduces flow through a radial clearance between a plug (16) and a cage (20). The vapor recovery area (50) is positioned below the seal (52) and above a seat (22) interacting with the plug (16). The vapor recovery area encourages collapse of vapor bubbles (50) to reduce damage to the valve trim. (FIG). 1
Full Text

Documents:


Patent Number 219339
Indian Patent Application Number 01783/KOLNP/2004
PG Journal Number 18/2008
Publication Date 02-May-2008
Grant Date 30-Apr-2008
Date of Filing 24-Nov-2004
Name of Patentee DRESSER INC.
Applicant Address 11TH FLOOR, MILLENNIUM 1, 1545 DALLAS PARKWAY, ADDISON TX 75001 USA.
Inventors:
# Inventor's Name Inventor's Address
1 STARES JAMES A 71, BARROWS STR4EET, NORTON MA02766, USA.
2 BITTNER CHRIOSTOPHER 44 COUNTRY ROAD EAST FEEETOPWN MA02717 USA
PCT International Classification Number F16K47/08
PCT International Application Number PCT/US03/10026
PCT International Filing date 2003-04-02
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 10/163,327 2002-06-05 U.S.A.