Patents
US 11873064 B2: Gyroscopic boat roll stabilizer with bearing cooling
- Granted
- 2024-01-16
- Filed
- 2023-01-27 application 18102456
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A gyroscopic roll stabilizer includes an enclosure, a flywheel assembly, a bearing, a motor, and a bearing cooling circuit. The enclosure is mounted to a gimbal for rotation about a gimbal axis and configured to maintain a below-ambient pressure. The flywheel assembly includes a flywheel and flywheel shaft. The bearing rotatably mounts the flywheel assembly inside the enclosure for rotation about a flywheel axis. The bearing has an inner race and an outer race. The inner race is affixed to the flywheel shaft, and the outer race is held rotationally fixed relative to the enclosure. The motor is operative to rotate the flywheel assembly. The bearing cooling circuit is configured to transfer heat away from the bearing by recirculating cooling fluid along a closed fluid pathway. The gyroscopic roll stabilizer is configured to transfer heat away from the inner and/or outer race of the bearing to the cooling fluid.
Source: PVGPATDIS, file of 2026-04-10 (ipg240116.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| WAVETAMER LLC 26 patents | US company or organization | Greenville, NC | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Brian John Sohacki | Livonia, MI | 9 | PVGPATDIS, file of 2026-04-10 | |
| Aaron P. Powers | Canton, MI | 7 | PVGPATDIS, file of 2026-04-10 | |
| Grady F. Smith | Greenville, NC | 28 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B63B | Ships or other waterborne vessels; equipment for shipping | B63B39/04 | PVGPATDIS, file of 2026-04-10 |
| B63J | Auxiliaries on vessels | B63J3/04 | PVGPATDIS, file of 2026-04-10 |
| F16C | Shafts; flexible shafts; elements or crankshaft mechanisms; rotary bodies other than gearing elements; bearings | F16C37/007 | PVGPATDIS, file of 2026-04-10 |
| G01C | Measuring distances, levels or bearings; surveying; navigation; gyroscopic instruments; photogrammetry or videogrammetry | G01C19/20 | 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 |
|---|---|---|---|---|---|
| 2023-01-27 | Assignment Assignment of assignor's interest | SOHACKI, BRIAN JOHN signed 2020-10-05 POWERS, AARON P. signed 2020-09-23 SMITH, GRADY F. signed 2020-09-23 ROUSH INDUSTRIES, INC. signed 2020-10-01 | WAVETAMER LLC GREENVILLE, NC | 62516/22 | PASDL, file of 2026-10-15 |
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.