Powerhead unit for tool
US11485003B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2019 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | May 24, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01G3/086
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A powered device includes a powerhead unit and an attachment unit selectively attachable to and powered by the powerhead unit. The powerhead unit includes a motor, a first shaft segment having a first driveshaft segment coupled to the motor, and a first connecting portion attached to the first shaft segment. The attachment unit includes an operational unit configured to be driven by the motor, a second shaft segment having a second driveshaft segment coupled to the operational unit, and a second connecting portion attached to the second shaft segment for coupling to the first connecting portion. One of the first connecting portion and the second connecting portion defines an axial opening having a keyway and includes a button having a hook portion. The other of the first connecting portion and the second connecting portion defines a slot and includes a key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.