Global patent index - EP 0972151 A1

EP 0972151 A1 2000-01-19 - SAFETY EXCESS FLOW VALVE SYSTEM WITH ADJUSTABLE CLOSING FLOW RATE SETTINGS

Title (en)

SAFETY EXCESS FLOW VALVE SYSTEM WITH ADJUSTABLE CLOSING FLOW RATE SETTINGS

Title (de)

DURCHFLUSSBEGRENZUNGSVENTIL MIT EINSTELLBARER ABSCHLIESSDURCHFLUSSMENGE

Title (fr)

SYSTEME DE SOUPAPE DE SURETE DE LIMITATION DE DEBIT A POINTS DE CONSIGNE DU DEBIT DE FERMETURE ADAPTABLES

Publication

EP 0972151 A1 (EN)

Application

EP 98913312 A

Priority

  • US 9806274 W
  • US 4259697 P
  • US 4745797 P
  • US 99500997 A

Abstract (en)

[origin: WO9844283A1] The present invention relates to an excess flow valve system having a sliding poppet (11) within a chamber with an orifice at one end, wherein the closing flow rate settings can be adjusted. Precise adjustments can be made externally by turning a threaded member extending through the valve, which causes a retainer (37), threadably located on the member, to move laterally within the chamber. This movement causes an angled surface on the retainer to engage and slide in relation to a similarly angled surface on the poppet. As the poppet is urged toward the retainer by a coiled spring (25), the poppet is moved longitudinally within the chamber, either toward or away from the orifice. Turning the threaded member enables the maximum travel distance of the poppet, and therefore, the threshold flow rate of the valve, to be precisely set. Additional means for broadening the range of settings, without replacing the spring or changing the orifice size, can also be provided, such as spacers to change the spring tension and multiple phase settings on the valve housing.

IPC 1-7 (main, further and additional classification)

F16K 17/30

IPC 8 full level (invention and additional information)

F16K 17/30 (2006.01)

CPC (invention and additional information)

F16K 17/30 (2013.01)

Citation (search report)

See references of WO 9844283A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9844283 A1 19981008; AU 6789498 A 19981022; BR 9807910 A 20000222; CN 1134603 C 20040114; CN 1251642 A 20000426; EP 0972151 A1 20000119; IL 132130 D0 20010319; NZ 500060 A 20020201; TR 9903301 T2 20000421

INPADOC legal status

2000-09-13 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20000704

2000-06-14 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: SANDERS VALVE CORPORATION

- Ref Legal Event Code: RAP1

2000-01-19 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 19991028

2000-01-19 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE