Patents
US 8084970 B2: Electrical machine and method of controlling the same
- Granted
- 2011-12-27
- Filed
- 2009-03-05 application 12398675
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An electrical machine having a stator and a rotor. The stator includes a core and a plurality of windings disposed on the core in a multiple-phase arrangement. The rotor is disposed adjacent to the stator to interact with the stator. A method of operating the motor includes applying a pulsed voltage differential to first and second terminals of the windings resulting in movement of the rotor; monitoring the back electromotive force (BEMF) of the windings to sense rotor movement; after the applying and monitoring steps, monitoring the BEMF of the windings to determine whether the rotor is rotating in a desired direction, and electrically commutating the motor when the rotor is rotating in the desired direction and zero or more other conditions exist.
Source: PVGPATDIS, file of 2026-04-10 (ipg111227.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Regal Beloit EPC Inc. 12 patents | US company or organization | Beloit, WI | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Paul Steven Mullin | Yellow Springs, OH | 30 | PVGPATDIS, file of 2026-04-10 | |
| Brian Thomas Branecky | Oconomowoc, WI | 29 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H02P | Control or regulation of electric motors, electric generators or dynamo-electric converters; controlling transformers, reactors or choke coils | H02P3/08 | PVGPATDIS, file of 2026-04-10 |
| Y10S | Technical subjects covered by former uspc cross-reference art collections [xracs] and digests | Y10S388/925 | 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 |
|---|---|---|---|---|---|
| 2013-01-08 | Assignment Assignment of assignor's interest | RBC MANUFACTURING CORPORATION signed 2012-12-31 | REGAL BELOIT AMERICA, INC. BELOIT, WI | 29582/236 | PASDL, file of 2026-10-15 |
| 2013-01-07 | Assignment Assignment of assignor's interest | REGAL BELOIT EPC, INC. signed 2012-12-31 | RBC MANUFACTURING CORPORATION BELOIT, WI | 29576/401 | ECORSEXC, file of 2026-09-25 |
| 2011-09-15 | Assignment Assignment of assignor's interest | A. O. SMITH CORPORATION signed 2011-08-22 | REGAL BELOIT EPC INC. BELOIT, WI | 26913/714 | ECORSEXC, file of 2026-09-25 |
| 2009-03-05 | Assignment Assignment of assignor's interest | BRANECKY, BRIAN THOMAS signed 2006-08-03 MULLIN, PAUL STEVEN signed 2006-08-07 | A.O. SMITH CORPORATION MILWAUKEE, WI | 22351/792 | 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.