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Sucker rod guide
Filed: May 2nd, 1984 [Granted]
Patent Number: 4779678
2198720 50 issued to Edgecomb et al. This patent shows an elongated cylindrical device for attachment at its upper and lower end to a string of sucker rods.
Assembly of hollow torque transmitting sucker rods
Filed: September 26th, 2002 [Pending]
Assignee: SIDERCA S A I C
Patent Application Number: 10254500
A pumping rod assembly or sucker rod string is significantly distinguished ... The 1990 patent to Pfeiffer et al, and the 1996 patent to Carstensen et al, ...
Hollow sucker rod connection with second torque shoulder
Filed: January 31st, 2006 [Pending]
Patent Application Number: 11342526
The hollow sucker rod and connecting element are dimensioned to obtain high ... The 1990 patent to Pfeiffer et al, and the 1996 patent to Carstensen et al, ...
Oil well sucker rod
Filed: April 28th, 1989 [Granted]
Assignee: Fiberglass Technologies Inc
Patent Number: 4919560
31, 1987, to Anderson et al., 30 shows a fiberglass sucker rod having a typical prior art connector. The connector shown in Anderson et al. has a rod- ...
Flexible sucker rod unit
Filed: June 14th, 1985 [Granted]
Assignee: Allen and Bennett Inc
Patent Number: 4640349
The following patents were found on that search: KINNY discloses a sucker rod coupling having a bearing made of stellite. PARAMORE ET AL., SABLE, JEVNING, ...
End fitting and coupling system for sucker rods
Filed: April 8th, 1986 [Granted]
Patent Number: 4740101
Sucker rods, which are usually manufactured in lengths of about 25', ... That search developed the following United States Patents: BUTLER et al. US Pat.
Sucker rod coupling with protective coating
Filed: January 12th, 1989 [Granted]
Assignee: ICO Inc
Patent Number: 4905760
If the hydrourethane jacket is not correctly bonded to the sucker rod ... Stephens et al 319144 Bahr 1134092 Gray et al 1703232 Nathan et al 2016905 Crake ...
Torque-turn system for a three-element sucker rod joint
Filed: June 29th, 1999 [Granted]
Patent Number: 6212763
The tool system engages two sucker rods that are at least ... 4091451 5/1978 Weiner et al. . 4106176 * 8/1978 Rice et al. . 4176436 12/1979 McCombs et al.
