Patents
US 11973374 B2: Outer rotor brushless motor having an axial fan
- Granted
- 2024-04-30
- Filed
- 2020-04-23 application 16856737
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A brushless direct-current motor is provided includes an inner stator and an outer rotor. The rotor includes a rotor core disposed around the stator, an inner annular member mounted on a rotor shaft, and a plurality of radial blades extending angularly from the rotor core to the inner annular member forming a fan. A first end cap is provided including a radial back plate proximate the fan and a center opening in the radial back plate through which the rotor shaft extends. A second end cap is provided including a main body disposed adjacent the stator opposite the fan. The radial back plate of the first end cap includes at least one sloped surface forming at least one air gap such that the airflow generated by the fan is centrifugally guided within the first end cap by the sloped surface and caused to exit through the air gap.
Source: PVGPATDIS, file of 2026-04-10 (ipg240430.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| BLACK & DECKER INC. 2,415 patents | US company or organization | Meridian Avenue, CT | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| John B. Fogle | White Hall, MD | 18 | PVGPATDIS, file of 2026-04-10 | |
| Dustin Jeffries | Baltimore, MD | 5 | PVGPATDIS, file of 2026-04-10 | |
| Michael R. Marjomaa | Mount Wolf, PA | 13 | PVGPATDIS, file of 2026-04-10 | |
| Kevin L. Pulley | White Marsh, MD | 14 | PVGPATDIS, file of 2026-04-10 | |
| Vincent W. Zou | Timonium, MD | 6 | PVGPATDIS, file of 2026-04-10 | |
| Jarrett A. Dunston | Bel Air, MD | 24 | PVGPATDIS, file of 2026-04-10 | |
| David J. Smith | Columbia, MD | 123 | PVGPATDIS, file of 2026-04-10 | |
| Rene Thieme | Riesa, DE | 8 | PVGPATDIS, file of 2026-04-10 | |
| Tim Heimrich | Bad Camberg, DE | 8 | PVGPATDIS, file of 2026-04-10 | |
| Tobias Heep | Hadamar, DE | 12 | PVGPATDIS, file of 2026-04-10 | |
| Daniel Bernhart | Bad Camberg, DE | 4 | PVGPATDIS, file of 2026-04-10 | |
| Dieter Schmidtfrerick | Idstein, DE | 3 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| H02K | Dynamo-electric machines | H02K1/2791 | PVGPATDIS, file of 2026-04-10 |
| A01D | Harvesting; mowing | A01D34/78 | PVGPATDIS, file of 2026-04-10 |
| B25D | Percussive tools | B25D11/125 | PVGPATDIS, file of 2026-04-10 |
| B25F | Combination or multi-purpose tools not otherwise provided for; details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for | B25F5/02 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
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.