Patents
US 10519719 B2: Retractable auger head
- Granted
- 2019-12-31
- Filed
- 2017-05-24 application 15603715
- Type
- Utility · 19 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A retractable auger boring cutter head. The cutter head has fixed cutters and at least one pivoting cutter. The pivoting cutter is biased to a position that extends beyond a diameter of a casing being installed. When pulled back through the casing, a surface of the pivoting cutter contacts the casing, reducing the effective diameter of the cutter head and allowing it to be removed.
Source: PVGPATDIS, file of 2026-04-10 (ipg191231.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Radius HDD Direct LLC 7 patents | US company or organization | Perry, OK | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| David G. Bullock | Weatherford, TX | 7 | PVGPATDIS, file of 2026-04-10 | |
| Ronald F. Wright | Weatherford, TX | 8 | PVGPATDIS, file of 2026-04-10 | |
| Toby Wright | Fort Worth, TX | 2 | PVGPATDIS, file of 2026-04-10 | |
| Thomas A. Miller | Weatherford, TX | 9 | PVGPATDIS, file of 2026-04-10 | |
| Boston Bullock | Weatherford, TX | 1 | 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 | E21B10/20 | PVGPATDIS, file of 2026-04-10 |
| E21D | Shafts; tunnels; galleries; large underground chambers | E21D9/104 | 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 |
|---|---|---|---|---|---|
| 2020-04-01 | Assignment Assignment of assignor's interest | RADIUS HDD DIRECT LLC signed 2020-03-30 | THE CHARLES MACHINE WORKS, INC. PERRY, OK | 52282/528 | ECORSEXC, file of 2026-09-25 |
| 2017-07-07 | Assignment Assignment of assignor's interest | BULLOCK, BOSTON signed 2017-06-14 BULLOCK, DAVID signed 2017-06-14 MILLER, THOMAS signed 2017-06-14 WRIGHT, RONALD F. signed 2017-06-14 WRIGHT, TOBY signed 2017-06-14 | RADIUS HDD DIRECT LLC PERRY, OK | 42928/629 | 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.