Digging apparatus
US11047174B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2018 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Feb 5, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B7/028
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A digging apparatus (10, 300) is disclosed. The digging apparatus (10,300) includes a handle assembly (14, 14a, 314), a motor (32), a main switch (22, 322) electrically connected with the motor (32). The main switch (22,322) is movable between a first position in which operation of the motor (32) is allowed and a second position in which operation of the motor (32) is prevented, and a drilling bit (88, 88a, 388) is driven by the motor (32). The drilling bit (88, 88a, 388) has a longitudinal axis (P-P, M-M), and when the switch member (22, 322) is in the first position, the motor (32) is adapted to drive the drilling bit (88, 88a, 388) to rotate about the longitudinal axis (P-P, M-M) in a clockwise direction in response to pushing of the handle assembly (14, 14a, 314) in a direction towards the drilling bit (88, 88a, 388), and the motor (32) is adapted to drive the drilling bit (88, 88a, 388) to rotate about the longitudinal axis (P-P, M-M) in an anti-clockwise direction in response to pulling of the handle assembly (14, 14a, 314) in a direction away from the drilling bit (88, 88a, 388).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.