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Class Information
Number: 166/84.2
Name: Wells > Above ground apparatus > With seal for reciprocating member > Cooling fluid or grease supplied to seals
Description: Reciprocating member seal wherein means are provided to deliver (a) temperature reducing liquid or gas or (b) lubrication to the flow prevention device.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7343969 |
Secondary packing arrangement for reciprocating pump polished rod |
Mar. 18, 2008 |
| 7040394 |
Active/passive seal rotating control head |
May. 9, 2006 |
| 6968894 |
Coiled tubing injector apparatus |
Nov. 29, 2005 |
| 6520253 |
Rotating drilling head system with static seals |
Feb. 18, 2003 |
| 6510900 |
Seal assembly for dual string coil tubing injection and method of use |
Jan. 28, 2003 |
| 6167959 |
Adjustable stuffing boxes for pump rods |
Jan. 2, 2001 |
| 5960876 |
Wellhead equipment that use polymer sealing elements to seal off well pressure |
Oct. 5, 1999 |
| 5944099 |
Infuser for composite spoolable pipe |
Aug. 31, 1999 |
| 5865245 |
Stuffing box gland |
Feb. 2, 1999 |
| 5549156 |
Shock absorber & Wiper |
Aug. 27, 1996 |
| 5538080 |
Self aligning stuffing box for pumpjack units |
Jul. 23, 1996 |
| 5435385 |
Integrated wellhead tubing string |
Jul. 25, 1995 |
| 5398944 |
Sealing system for reciprocating rod |
Mar. 21, 1995 |
| 5217068 |
Stuffing box |
Jun. 8, 1993 |
| 5137083 |
Wellhead stuffing box for polished rod and accessories for same |
Aug. 11, 1992 |
| 5067563 |
Spillproof oil well seal |
Nov. 26, 1991 |
| 4981174 |
Leakproof stuffing box with external lubrication for polish rod |
Jan. 1, 1991 |
| 4951745 |
Stuffing box and grease injector for underwater wells |
Aug. 28, 1990 |
| 4872508 |
Oil well pump leakage accumulator |
Oct. 10, 1989 |
| 4821799 |
Grease injection control system |
Apr. 18, 1989 |
| 4718487 |
Auxiliary well pressure packoff assembly |
Jan. 12, 1988 |
| 4697639 |
Blow-out protector and fire control system for petroleum exploration |
Oct. 6, 1987 |
| 4647050 |
Stuffing box for a sucker rod pump assembly |
Mar. 3, 1987 |
| 4530397 |
Oil saving apparatus for use with well pump polish rod |
Jul. 23, 1985 |
| 4476924 |
Grease injection control head having a specific gas trap |
Oct. 16, 1984 |
| 4326584 |
Kelly packing and stripper seal protection element |
Apr. 27, 1982 |
| 4090573 |
Wireline sealing apparatus and method for use with a drill string |
May. 23, 1978 |
| 3939910 |
Stuffing box and blow out preventing device for polish rods of oil well pumping units |
Feb. 24, 1976 |
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