Patents
US 11605994 B2: Winding insulation system
- Granted
- 2023-03-14
- Filed
- 2021-11-19 application 17530844
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A winding insulation system includes a set of insulated conductors, main wall insulation provided around the conductors, corona shield tape provided around the main wall insulation, stress grading tape provided around the corona shield tape, and sealing tape provided around the stress grading tape. The main wall insulation includes inner, intermediate, and outer sections. The inner section includes polyimide mica paper reinforced with any combination of the group consisting of: glass cloth, polyester film, and polyester mat, the inner section being provided in half-lap layer(s). The intermediate section includes mica paper reinforced with any combination of the group consisting of: glass cloth, polyester film, and polyester mat, the intermediate section being provided in half-lap layer(s). The outer section includes mica tape backed with aramid and reinforced with any combination of the group consisting of: glass cloth, polyester film, and polyester mat, the outer section being provided in half-lap layer(s).
Source: PVGPATDIS, file of 2026-04-10 (ipg230314.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| THE TIMKEN COMPANY 94 patents | US company or organization | North Canton, OH | THE TIMKEN COMPANY State business registration EXACT high confidence: identical full name and state THE TIMKEN COMPANY Federal lobbying client EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Jan de Swardt | Mount Homer, FL | 7 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H02K | Dynamo-electric machines | H02K3/30 | PVGPATDIS, file of 2026-04-10 |
| H01B | Cables; conductors; insulators; selection of materials for their conductive, insulating or dielectric properties | H01B7/0225 | 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 |
|---|---|---|---|---|---|
| 2026-01-27 | Assignment Assignment of assignor's interest | THE TIMKEN COMPANY signed 2026-01-27 | TIMKEN GEARS & SERVICES INC. KING OF PRUSSIA, PA | 73601/815 | PASDL, file of 2026-10-15 |
| 2021-11-19 | Assignment Assignment of assignor's interest | DE SWARDT, JAN signed 2021-05-25 | THE TIMKEN COMPANY NORTH CANTON, OH | 58215/515 | 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.