| US 7,497,279 B2 | ||
| Jack element adapted to rotate independent of a drill bit | ||
| David R. Hall, 2185 South Larsen Pkwy., Provo, Utah 84606 (US); and Jim Shumway, 2185 South Larsen Pkwy., Provo, Utah 84606 (US) | ||
| Filed on Jan. 29, 2007, as Appl. No. 11/668,341. | ||
| Application 11/668341 is a continuation in part of application No. 11/611310, filed on Dec. 15, 2006. | ||
| Application 11/611310 is a continuation in part of application No. 11/278935, filed on Apr. 06, 2006, granted, now 7,426,968. | ||
| Application 11/278935 is a continuation in part of application No. 11/277394, filed on Mar. 24, 2006, granted, now 7,398,837. | ||
| Application 11/277394 is a continuation in part of application No. 11/277380, filed on Mar. 24, 2006, granted, now 7,337,858. | ||
| Application 11/277380 is a continuation in part of application No. 11/306976, filed on Jan. 18, 2006, granted, now 7,360,610. | ||
| Application 11/306976 is a continuation in part of application No. 11/306307, filed on Dec. 22, 2005, granted, now 7,225,886. | ||
| Application 11/306307 is a continuation in part of application No. 11/306022, filed on Dec. 14, 2005, granted, now 7,198,119. | ||
| Application 11/306022 is a continuation in part of application No. 11/164391, filed on Nov. 21, 2005, granted, now 7,270,196. | ||
| Prior Publication US 2007/0119630 A1, May 31, 2007 | ||
| Int. Cl. E21B 7/06 (2006.01) | ||
| U.S. Cl. 175—73 [175/104; 175/106; 175/107] | 19 Claims |
| 1. A downhole tool string, comprising:
a rotor secured within a bore of a tool string component and connected to a jack element substantially coaxial with the rotor;
a portion of the jack element extends out of an opening formed in a working face of a drill bit located at the bottom of the
tool string;
wherein the jack element is adapted to rotate independent of the drill bit when the rotor and drill bit are in operation;
wherein the jack element is part of a steering system.
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