Patents
US 11780542 B2: Gyroscopic roll stabilizer with flywheel shaft through passage
- Granted
- 2023-10-10
- Filed
- 2021-09-28 application 18020406
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A gyroscopic roll stabilizer includes an enclosure, a flywheel assembly, and a motor. The enclosure is mounted to a gimbal for rotation about a gimbal axis and configured to maintain a below-ambient pressure. The flywheel assembly is rotatably mounted inside the enclosure for rotation about a flywheel axis. The flywheel assembly includes a flywheel and flywheel shaft. The flywheel shaft has a first end and an opposite second end; a first cavity formed in the first end and facing away from the second end; and a second cavity formed in the second end and facing away from the first end. The flywheel shaft has a longitudinal passage connecting the first cavity and the second cavity. This longitudinal passage may be used for inspection of one of the cavities and/or an associated seal, from the direction of the other cavity. 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 | |
| Andrew K. Siefert | Ypsilanti, MI | 2 | 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 | F16C37/007 | PVGPATDIS, file of 2026-04-10 |
| F16F | Springs; shock-absorbers; means for damping vibration | F16F15/315 | PVGPATDIS, file of 2026-04-10 |
| G01C | Measuring distances, levels or bearings; surveying; navigation; gyroscopic instruments; photogrammetry or videogrammetry | G01C21/30 | 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 |
|---|---|---|---|---|---|
| 2023-02-08 | Assignment Assignment of assignor's interest | ROUSH INDUSTRIES, INC. signed 2020-10-01 SIEFERT, ANDREW K. signed 2020-10-01 SOHACKI, BRIAN JOHN signed 2020-10-05 | WAVETAMER LLC GREENVILLE, NC | 62632/462 | 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.