Patents
US 12738808 B2: Brushless motor for a power tool
- Granted
- 2026-09-15
- Filed
- 2024-08-30 application 18820774
- Type
- Utility · 9 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A Brushless Direct-Current (BLDC) motor is provided for a power tool, including a stator comprising a set of coils, a rotor configured to rotate with respect to the stator, power supply lines, terminals secured to the stator outer surface of the stator, and a Hall circuit board. The terminals extend axially on the outer surface of the stator. A radial member is oriented radially adjacent a second side of stator proximate an axial end of the of coils, the radial member including a through-hole through which the rotor shaft extends, and discrete conductive routings electrically coupled to the coils and making electric contact with the coils at at least three distinct contact points to electrically connect the coils in a delta configuration.
Source: PTBLXML, file of 2026-09-15 (ipgb20260915.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| BLACK & DECKER INC. 2,415 patents | US company or organization | New Britain, CT | PTBLXML, file of 2026-09-15 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Eric E. Hatfield | Flagstaff, AZ | 22 | PTBLXML, file of 2026-09-15 | |
| Earl M. Ortt | Bel Air, MD | 26 | PTBLXML, file of 2026-09-15 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H02K | Dynamo-electric machines | H02K9/06 | PTBLXML, file of 2026-09-15 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2026-07-29 | Assignment Assignment of assignor's interest | HATFIELD, ERIC E. signed 2013-06-04 ORTT, EARL M. signed 2013-06-09 | BLACK & DECKER INC. NEW BRITAIN, CT | 75447/503 | PASDL, file of 2026-09-24 |
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.