| US 7,478,548 B2 | ||
| Reaming apparatus | ||
| James Edward Fogg, Great Yarmouth (United Kingdom) | ||
| Assigned to Weatherford U.K. Limited, Norfolk (United Kingdom) | ||
| Filed on Nov. 14, 2005, as Appl. No. 11/273,892. | ||
| Claims priority of application No. 0424885.2 (GB), filed on Nov. 11, 2004. | ||
| Prior Publication US 2006/0110226 A1, May 25, 2006 | ||
| Int. Cl. B21C 37/29 (2006.01) | ||
| U.S. Cl. 72—71 [72/72; 72/370.01; 72/449] | 41 Claims |
| 1. Apparatus for reaming tubing, the apparatus comprising:
a housing adapted to be mounted to tubing to be reamed, the housing providing mounting for (a) a reamer shaft, the shaft adapted
to mount a cutter within tubing to be reamed, and (b) a drive arrangement;
a gear arrangement between the drive arrangement and the reamer shaft, the gear arrangement being adapted to modify the nature
of an input to the drive arrangement on transfer to the reamer shaft; and
a cutter advance arrangement adapted to advance the reamer shaft axially relative to the housing.
|