Patents
US 10851589 B2: Integrated bearing section and method
- Granted
- 2020-12-01
- Filed
- 2018-04-27 application 15965330
- Type
- Utility · 9 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An integrated bearing section includes a mandrel partially disposed within a housing. The bearing section includes spherical members disposed between the mandrel's outer surface and the housing's inner surface. A radial bearing portion is formed by spherical members disposed partially within grooves and engaging a flat profile opposing surface. The grooves may be in the mandrel's outer surface, an outer surface of a mandrel sleeve, the housing's inner surface, or an outer radial bearing's inner surface. The flat profile opposing surface may be on an outer radial bearing's inner surface, the housing's inner surface, the mandrel's outer surface, or a mandrel sleeve's outer surface. A thrust bearing portion is formed by spherical members disposed partially within grooves in two opposing surfaces, such as the mandrel's outer surface or a mandrel sleeve's outer surface, and the housing's inner surface or an outer thrust bearing's inner surface.
Source: PVGPATDIS, file of 2026-04-10 (ipg201201.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Rival Downhole Tools LC 11 patents | US company or organization | Houston, TX | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Gunther HH von Gynz-Rekowski | Conroe, TX | 42 | PVGPATDIS, file of 2026-04-10 | |
| Mark Allen Reeves | Diemelstraße, TX | 12 | PVGPATDIS, file of 2026-04-10 | |
| William Christian Herben | Magnolia, TX | 11 | 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 | E21B4/003 | 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 |
|---|---|---|---|---|---|
| 2025-03-12 | Release of security interest Release of security interest | BANC OF CALIFORNIA F/K/A PACIFIC WESTERN BANK D/B/A PACIFIC WESTERN BUSINESS FINANCE signed 2025-03-12 | RIVAL DOWNHOLE TOOLS LLC HOUSTON, TX | 70484/567 | ECORSEXC, file of 2026-09-25 |
| 2022-10-28 | Security interest Security interest Security interest | RIVAL DOWNHOLE TOOLS LLC signed 2022-10-13 | PACIFIC WESTERN BANK D/B/A PACIFIC WESTERN BUSINESS FINANCE PHOENIX, AZ | 61586/149 | ECORSEXC, file of 2026-09-25 |
| 2019-05-06 | Assignment Assignment of assignor's interest | ASHMIN HOLDING LLC signed 2019-04-26 | RIVAL DOWNHOLE TOOLS LC HOUSTON, TX | 49094/110 | ECORSEXC, file of 2026-09-25 |
| 2018-06-21 | Assignment Assignment of assignor's interest | HERBEN, WILLIAM C. signed 2018-06-14 REEVES, MARK A. signed 2018-06-14 VON GYNZ-REKOWSKI, GUNTHER HH signed 2018-06-14 | ASHMIN HOLDING LLC CONROE, TX | 46166/520 | 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.