Patents
US 8886267 B2: Fault current limiting HTS cable and method of configuring same
- Granted
- 2014-11-11
- Filed
- 2010-11-22 application 12951293
- Type
- Utility · 9 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A cryogenically-cooled HTS cable is configured to be included within a utility power grid having a maximum fault current that would occur in the absence of the cryogenically-cooled HTS cable. The cryogenically-cooled HTS cable includes a continuous liquid cryogen coolant path for circulating a liquid cryogen. A continuously flexible arrangement of HTS wires has an impedance characteristic that attenuates the maximum fault current by at least 10%. The continuously flexible arrangement of HTS wires is configured to allow the cryogenically-cooled HTS cable to operate, during the occurrence of a maximum fault condition, with a maximum temperature rise within the HTS wires that is low enough to prevent the formation of gas bubbles within the liquid cryogen.
Source: PVGPATDIS, file of 2026-04-10 (ipg141111.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| American Superconductor Corporation 53 patents | US company or organization | Devens, MA | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Douglas C. Folts | Baraboo, WI | 11 | PVGPATDIS, file of 2026-04-10 | |
| James Maguire | Andover, MA | 11 | PVGPATDIS, file of 2026-04-10 | |
| Jie Yuan | Grafton, MA | 62 | PVGPATDIS, file of 2026-04-10 | |
| Alexis P. Malozemoff | Lexington, MA | 5 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H01B | Cables; conductors; insulators; selection of materials for their conductive, insulating or dielectric properties | H01B12/02 | PVGPATDIS, file of 2026-04-10 |
| H02H | Emergency protective circuit arrangements | H02H7/001 | PVGPATDIS, file of 2026-04-10 |
| H10N | Electric solid-state devices not otherwise provided for | H10N60/30 | PVGPATDIS, file of 2026-04-10 |
| Y02E | Reduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution | Y02E40/60 | 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 |
|---|---|---|---|---|---|
| 2014-05-22 | Assignment Assignment of assignor's interest | AMERICAN SUPERCONDUCTOR CORPORATION signed 2008-04-17 | AMERICAN SUPERCONDUCTOR CORPORATION DEVENS, MA | 32986/770 | ECORSEXC, file of 2026-09-25 |
| 2010-11-22 | Assignment Assignment of assignor's interest | MALOZEMOFF, ALEXIS P. signed 2007-04-13 YUAN, JIE signed 2007-04-13 MAGUIRE, JAMES signed 2007-04-16 FOLTS, DOUGLAS C. signed 2007-04-18 | AMERICAN SUPERCONDUCTOR CORPORATION WESTBOROUGH, MA | 25390/172 | 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.