EP 0246271 A4 19880215 - PRESSURE RELIEF VALVE HAVING A NOVEL POPPET SEAL.
Title (en)
PRESSURE RELIEF VALVE HAVING A NOVEL POPPET SEAL.
Title (de)
ÜBERDRUCKVENTIL MIT EINER NEUEN DICHTUNG FÜR DAS ABSPERRORGAN.
Title (fr)
SOUPAPE D'ABAISSEMENT DE LA PRESSION AYANT UN NOUVEAU JOINT D'ETANCHEITE SOULEVANT.
Publication
Application
Priority
US 78416185 A 19851004
Abstract (en)
[origin: WO8702113A1] A proportioning relief valve (2) incorporating two novel poppet seal constructions (22, 32). Incorporation of metal reinforced fluorocarbon in a novel U-shaped construction (22) provides a pressure actuated poppet-seat seal. Pressure actuation is maintained for "cracking" and full relief positons of the poppet (16), thereby retaining seal/groove integrity. An alternate deformable poppet seal (32) utilizes a laminated multiple disc construction (38) bonded to both seal groove (36) and poppet (34).
IPC 1-7
IPC 8 full level
F16K 1/46 (2006.01); F16K 17/04 (2006.01)
CPC (source: EP)
F16K 1/46 (2013.01); F16K 17/0426 (2013.01)
Citation (search report)
- [A] US 3200839 A 19650817 - GALLAGHER BERNARD J
- [A] FR 1214285 A 19600407 - SEETRU LTD
- [A] FR 2410773 A1 19790629 - NEMETZ JOSEF [DE]
- See references of WO 8702113A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 8702113 A1 19870409; EP 0246271 A1 19871125; EP 0246271 A4 19880215; JP S63502206 A 19880825
DOCDB simple family (application)
US 8602069 W 19861002; EP 86906543 A 19861002; JP 50545586 A 19861002