| |
 |
|
Class Information
Number: 277/523
Name: Seal for a joint or juncture > Seal between relatively movable parts (i.e., dynamic seal) > Circumferential contact seal for other than piston > Contained or compressed by gland member in packing box > Particular gland feature > Spring bias > Disposed about external bolt or stud
Description: Spring bias wherein the spring bias surrounds a fastener or projecting pin located outside the packing box and used to mount the gland to the packing box.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7219878 |
Live loaded packing for valve |
May. 22, 2007 |
| 6622987 |
Liveload assembly for valve |
Sep. 23, 2003 |
| 6588729 |
Packing box arrangement for a gate valve |
Jul. 8, 2003 |
| 6523834 |
Solid sealant with environmentally preferable corrosion resistance |
Feb. 25, 2003 |
| 6499745 |
Solid sealant with environmentally preferable corrosion resistance |
Dec. 31, 2002 |
| 6382633 |
Shaft seal device using gland packing |
May. 7, 2002 |
| 6354597 |
Sealed rotating connection device allowing great motions |
Mar. 12, 2002 |
| 6315300 |
Solid sealant with environmentally preferable corrosion resistance |
Nov. 13, 2001 |
| 6120006 |
Valve device |
Sep. 19, 2000 |
| 5906354 |
Ball valve for lethal gas or fluid service |
May. 25, 1999 |
| 5549305 |
Sootblower packing gland |
Aug. 27, 1996 |
| 5460351 |
Valve stem locking assembly |
Oct. 24, 1995 |
| 5456447 |
Valve assembly |
Oct. 10, 1995 |
| 5333883 |
Stuffing box seal |
Aug. 2, 1994 |
| 5326074 |
Enhanced sealing arrangement for a rotary valve shaft |
Jul. 5, 1994 |
| 5316319 |
Liveload assembly for maintaining torque on bolts |
May. 31, 1994 |
| 5195756 |
Live-load device |
Mar. 23, 1993 |
| 5192049 |
Dual rated live loaded packing system for a valve stem |
Mar. 9, 1993 |
| 5171022 |
Shaft seal of a mixing and kneading machine |
Dec. 15, 1992 |
| 5131666 |
Zero clearance anti-extrusion rings for containment of PTFE packing |
Jul. 21, 1992 |
| 5024453 |
Liveload assembly for rotary or reciprocating shaft packing |
Jun. 18, 1991 |
| 4867197 |
High pressure valve |
Sep. 19, 1989 |
| 4827967 |
Plug valve |
May. 9, 1989 |
| 4795171 |
Self-pressurized shaft or closure seal |
Jan. 3, 1989 |
| 4765631 |
Stuffing box sealing arrangement |
Aug. 23, 1988 |
| 4582329 |
Sealing bearing arrangement with convex bushing ring |
Apr. 15, 1986 |
| 4538790 |
Valve stem packing assembly |
Sep. 3, 1985 |
| 4351512 |
Valve with yoke and captive gland wrench |
Sep. 28, 1982 |
| 4345766 |
Apparatus for sealing an oil well pump polished rod |
Aug. 24, 1982 |
|
|
|
