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Class Information
Number: 464/163
Name: Rotary shafts, gudgeons, housings, and flexible couplings for rotary shafts > Coupling facilitates relative axial motion between coupled members > Coupling between rotary drive table and axially movable drill string
Description: Subject matter wherein one of said members is a rotating pipe used in an earth-boring operation, and the other of said members is a device positioned around the external circumference of the pipe for transmitting rotary torque to the pipe.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6994628 |
Locking swivel apparatus with replaceable internal gear members |
Feb. 7, 2006 |
| 6915865 |
Locking swivel apparatus with a supplemental internal locking mechanism |
Jul. 12, 2005 |
| 6848520 |
Bushing for a drilling rig |
Feb. 1, 2005 |
| 6651737 |
Collar load support system and method |
Nov. 25, 2003 |
| 6386283 |
Elevator and spider converter |
May. 14, 2002 |
| 6089338 |
Flush mounted self aligning spider |
Jul. 18, 2000 |
| 5996712 |
Mechanical locking swivel apparatus |
Dec. 7, 1999 |
| 5263899 |
Cylindrical telescopic kelly-bar apparatus |
Nov. 23, 1993 |
| 5107941 |
Kelly saver drive |
Apr. 28, 1992 |
| 4328857 |
Mounting device for heat recovery wheels |
May. 11, 1982 |
| 4317493 |
Kelly drive bushing adapter |
Mar. 2, 1982 |
| 4312404 |
Rotating blowout preventer |
Jan. 26, 1982 |
| 4285215 |
Rotary table and kelly guard |
Aug. 25, 1981 |
| 4254638 |
Positive release means for articulated flexible shaft |
Mar. 10, 1981 |
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