Trepanning tool with plug management
US11235398B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 10, 2020 |
| Grant date | Feb 1, 2022 |
| Priority date | — |
| Expiry date | Mar 26, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B2251/14
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A trepanning apparatus, including a shaft portion extending along a longitudinal axis; an annular cutter portion; and a connecting portion extending axially between the shaft portion and the cutter portion, the connecting portion including a pair of arms each having a front end connected to the cutter portion and a rear end connected to the shaft portion, the arms circumferentially spaced from one another about the longitudinal axis to provide diametrically opposed first and second openings, a first plug retaining surface defined by a first portion of the rearward end of the cutter portion having a first circumferential extent bounded by the front ends of the arms, and a second plug retaining surface defined by a second portion of the rearward end of the cutter portion having a second circumferential extent bounded by the front ends of the arms, the first circumferential extent greater than the second circumferential extent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.