Patents
US 11780541 B2: Gyroscopic boat stabilizer with motor cooling
- Granted
- 2023-10-10
- Filed
- 2021-08-19 application 18020229
- Type
- Utility · 19 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A gyroscopic roll stabilizer for a boat includes an enclosure mounted to a gimbal for rotation about a gimbal axis and configured to maintain a below-ambient pressure, and a flywheel assembly including a flywheel and flywheel shaft, with the flywheel assembly rotatably mounted inside the enclosure for rotation about a flywheel axis. The gyroscopic roll stabilizer also includes a motor operative to rotate the flywheel assembly and disposed inside the enclosure. A motor cooling circuit is configured to transfer heat away from the motor. The motor cooling circuit has a closed fluid pathway for recirculating cooling fluid therein. The fluid pathway includes a fluid channel jointly defined by the motor and the enclosure and having the cooling fluid therein. The gyroscopic roll stabilizer is configured to transfer heat away from the motor to the cooling fluid. Related methods are also disclosed.
Source: PVGPATDIS, file of 2026-04-10 (ipg231010.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 |
| F16C | Shafts; flexible shafts; elements or crankshaft mechanisms; rotary bodies other than gearing elements; bearings | F16C19/18 | PVGPATDIS, file of 2026-04-10 |
| F16F | Springs; shock-absorbers; means for damping vibration | F16F15/3156 | PVGPATDIS, file of 2026-04-10 |
| G01C | Measuring distances, levels or bearings; surveying; navigation; gyroscopic instruments; photogrammetry or videogrammetry | G01C19/46 | PVGPATDIS, file of 2026-04-10 |
| H02K | Dynamo-electric machines | H02K5/1732 | PVGPATDIS, file of 2026-04-10 |
| Y02E | Reduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution | Y02E60/16 | 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 |
|---|---|---|---|---|---|
| 2023-02-07 | Assignment Assignment of assignor's interest | POWERS, AARON P. signed 2020-09-23 SMITH, GRADY F. signed 2020-09-23 ROUSH INDUSTRIES, INC. signed 2020-10-01 SOHACKI, BRIAN JOHN signed 2020-10-05 | WAVETAMER LLC GREENVILLE, NC | 62619/195 | 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.