(19)
(11) EP 1 790 888 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A2)

(48) Corrigendum issued on:
15.08.2007 Bulletin 2007/33

(88) Date of publication A3:
20.06.2007 Bulletin 2007/25

(43) Date of publication:
30.05.2007 Bulletin 2007/22

(21) Application number: 07005194.1

(22) Date of filing: 12.11.2002
(51) International Patent Classification (IPC): 
F16K 1/38(2006.01)
F16K 1/52(2006.01)
 F16K 1/54(2006.01)
(84) Designated Contracting States:
FR GB

(30) Priority: 15.11.2001 US 335920 P
14.05.2002 US 145441

(62) Application number of the earlier application in accordance with Art. 76 EPC:
02789652.1 / 1448922

(71) Applicant: Fisher Controls International LLC
St. Louis, MO 63136 (US)

(72) Inventors:
  • Hall, Randy Jerold
    Marshalltown, IA 50158 (US)
  • Burr, Ronald Charles
    Marshalltown, IA 50158 (US)

(74) Representative: Bohnenberger, Johannes et al
Meissner, Bolte & Partner GbR, Postfach 86 06 24
81633 München
81633 München (DE)

 
Remarks:
This application was filed on 13-03-07 as a divisional application to the application mentioned under INID code 62.
 


(54) Valve Plug


(57) A valve assembly has a valve body (12) having an inlet passageway (54) and an outlet passageway (56). A flow orifice (72) is disposed within valve body and provides flow communication between the inlet passageway (54) and outlet passageway (56). A valve seat (70) cooperates with the flow orifice (72) and a variable port valve plug (60) to open and close the valve. The valve plug (60) has a plug body with a conically-shaped smooth tapered wall (82), a proximal end, and a domed distal end (88) surface that smoothly transitions into the tapered wall (82). The valve plug (60) is movable between an open position out of contact with the valve seat (70) and a closed position borne against the valve seat (70). A maximum open position of the valve plug relative to the valve seat (70) can be selectively changed to vary flow characteristics through the valve assembly.