1
James R Davis, Robert T Wilson: Valve stem packing containment for high pressure, high temperature. Fisher Controls International, Marshall O Toole Gerstein Murray & Bicknell, December 12, 1989: US04886241 (48 worldwide citation)

A fluid valve for use in elevated pressure and temperature conditions. Composition material wiper rings are provided in the packing bore between the packing follower and the packing box ring. The composition wiper rings have an inner diameter substantially the same as the valve stem diameter to inhi ...


2
Davis James Russell, Wilson Robert Thomas: Valve stem packing containment for high pressure, high temperature.. Fisher Controls Int, March 22, 1989: EP0308390-A1 (20 worldwide citation)

A fluid valve for use in elevated pressure and temperature conditions. Composition material wiper rings are provided in the packing bore between the packing follower and the packing box ring. The composition wiper rings have an inner diameter substantially the same as the valve stem diameter to inhi ...


3
Davis James Russell, Wilson Robert Thomas: Confinement de garniture de tige de soupape pour systeme a pression et a temperature elevees, Valve stem packing containment for high pressure, high temperature. Fisher Controls International, MCFADDEN FINCHAM, April 6, 1993: CA1315765

21-56-5580 VALVE STEM PACKING CONTAINMENTFOR HIGH PRESSURE, HIGH TEMPERATURE Abstract of the DisclosureA fluid valve for use in elevated pressure andtemperature conditions. Composition material wiperrings are provided in the packing bore between thepacking follower and the packing box ring. Thecompo ...