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Class Information
Number: 277/512
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 > Fluid introducer or director
Description: Seal for the gland and packing box wherein the seal, gland or packing box includes means to convey a fluid into, within or out of the seal, gland or packing box.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7314218 |
Externally mountable spiral adaptor |
Jan. 1, 2008 |
| 7134491 |
Leak remedy through sealants in local reservoirs |
Nov. 14, 2006 |
| 7121551 |
Bushing arrangement for seal cavity protection in rotating fluid equipment |
Oct. 17, 2006 |
| 6971479 |
Top of rail applicator |
Dec. 6, 2005 |
| 6932351 |
Packing case for cooling compressors and other machinery |
Aug. 23, 2005 |
| 6916022 |
Shaft seal |
Jul. 12, 2005 |
| 6834862 |
Shaft sealing system for a rotary mechanical device |
Dec. 28, 2004 |
| 6817228 |
Method and apparatus for detecting seal failure |
Nov. 16, 2004 |
| 6796324 |
Fugitive emission collection device |
Sep. 28, 2004 |
| 6698764 |
Packing assembly |
Mar. 2, 2004 |
| 6641140 |
Apparatus for retaining lubrication oil at sliding surface of shaft seal device disposed within oil chamber of submersible pump |
Nov. 4, 2003 |
| 6601854 |
Shaft seal |
Aug. 5, 2003 |
| 6578850 |
Dynamic seal for a drive shaft |
Jun. 17, 2003 |
| 6234490 |
Leakfree pumpback packing |
May. 22, 2001 |
| 5979483 |
Valve assembly and method |
Nov. 9, 1999 |
| 5921554 |
Anti-pack out seal |
Jul. 13, 1999 |
| 5873575 |
Fluid cooled packing case member for compressors and other machinery |
Feb. 23, 1999 |
| 5513556 |
Packing gland construction |
May. 7, 1996 |
| RE35116 |
Method and apparatus to facilitate the injection of sealant into a pressurized fluid member |
Dec. 12, 1995 |
| 5395469 |
Method of making an improved spirally-formed seal for shafts and valve stems |
Mar. 7, 1995 |
| 5346136 |
Fuel injection valve |
Sep. 13, 1994 |
| 5343944 |
Self aligning stuffing box for pumpjack units |
Sep. 6, 1994 |
| 5178363 |
Valve stem sealing means for prevention of fugitive emissions |
Jan. 12, 1993 |
| 5078175 |
Valve |
Jan. 7, 1992 |
| 5062439 |
Method and apparatus to facilitate the injection of sealant into a pressurized fluid member |
Nov. 5, 1991 |
| 5052427 |
Method and apparatus to facilitate the injection of sealant into a pressurized fluid member |
Oct. 1, 1991 |
| 4972867 |
Valve stem seal leak protection and detection apparatus |
Nov. 27, 1990 |
| 4916938 |
Valve leakage inspection, testing and maintenance process |
Apr. 17, 1990 |
| 4878677 |
Shut off seal about a shaft of a device having a side entry into a tank |
Nov. 7, 1989 |
| 4844479 |
Structure of a gland packing box |
Jul. 4, 1989 |
| 4795171 |
Self-pressurized shaft or closure seal |
Jan. 3, 1989 |
| 4758135 |
Pump head |
Jul. 19, 1988 |
| 4728198 |
Kneader |
Mar. 1, 1988 |
| 4712772 |
Power hydraulic gear |
Dec. 15, 1987 |
| 4572519 |
Packing assembly for use in a plunger bore |
Feb. 25, 1986 |
| 4515512 |
Seal for high pressure pump or the like |
May. 7, 1985 |
| 4474382 |
Unitized seal carrier assembly for reciprocating shaft |
Oct. 2, 1984 |
| 4451047 |
Seal |
May. 29, 1984 |
| 4386783 |
Packing nut and stuffing box for hydraulic or manual actuation |
Jun. 7, 1983 |
| 4364542 |
Packing gland assembly |
Dec. 21, 1982 |
| 4340204 |
High pressure gate valve with preloaded, stacked, solid lubricated stem seals |
Jul. 20, 1982 |
| 4328973 |
Shaft seal with fluid pressure and spring bias |
May. 11, 1982 |
| 4251081 |
Piston rod seal |
Feb. 17, 1981 |
| 4199153 |
Sealing assembly for blending apparatus |
Apr. 22, 1980 |
| RE29679 |
Stem sealing for high pressure valve or the like |
Jun. 27, 1978 |
| 4076103 |
Lubricating means for gas-operated cylinders |
Feb. 28, 1978 |
| 3991838 |
Drill sampling diversion unit |
Nov. 16, 1976 |
| 3990679 |
Stem sealing for high pressure valve or the like |
Nov. 9, 1976 |
| 3935710 |
Gland steam reheater for turbine apparatus gland seals |
Feb. 3, 1976 |
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