Patents
US 7721826 B2: Downhole jack assembly sensor
- Granted
- 2010-05-25
- Filed
- 2007-09-06 application 11851094
- Type
- Utility · 17 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
In one aspect of the invention, a drill string comprises a drill bit with a body intermediate a shank and a working face, and the working face comprises at least one cutting element. A jack assembly is disposed within the drill bit body and comprises a jack element disposed on a distal end of the assembly. The jack element substantially protrudes from the working face and is adapted to move with respect to the bit body. At least one position feedback sensor is disposed proximate the jack assembly and is adapted to detect a position and/or orientation of the jack element.
Source: PVGPATDIS, file of 2026-04-10 (ipg100525.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Schlumberger Technology Corporation 7,610 patents | US company or organization | Houston, TX | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| David R. Hall | Provo, UT | 859 | PVGPATDIS, file of 2026-04-10 | |
| David Lundgreen | Provo, UT | 26 | PVGPATDIS, file of 2026-04-10 | |
| Jim Shumway | Lehi, UT | 14 | PVGPATDIS, file of 2026-04-10 | |
| Nathan Nelson | Provo, UT | 15 | PVGPATDIS, file of 2026-04-10 | |
| Daryl Wise | Provo, UT | 22 | PVGPATDIS, file of 2026-04-10 | |
| Paula Turner | Pleasant Grove, UT | 33 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E21B | Earth or rock drilling; obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells | E21B47/09 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2010-03-10 | Assignment Assignment of assignor's interest | NOVADRILL, INC. signed 2010-01-21 | SCHLUMBERGER TECHNOLOGY CORPORATION HOUSTON, TX | 24055/457 | ECORSEXC, file of 2026-09-25 |
| 2008-10-20 | Assignment Assignment of assignor's interest | HALL, DAVID R. signed 2008-08-06 | NOVADRILL, INC. PROVO, UT | 21701/758 | PASDL, file of 2026-10-15 |
| 2007-09-06 | Assignment Assignment of assignor's interest | LUNDGREEN, DAVID, MR. signed 2007-08-30 NELSON, NATHAN, MR. signed 2007-08-30 WISE, DARYL, MR. signed 2007-08-30 SHUMWAY, JIM, MR. signed 2007-08-31 TURNER, PAULA, MS. signed 2007-09-05 | HALL, DAVID R., MR. PROVO, UT | 19792/367 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.