Drill bit
US11407039B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2019 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | Jan 29, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23B2251/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A drill bit includes a body having a first end, a second end opposite the first end, and an axis of rotation extending centrally through the body. The drill bit includes a cutting head with a cutting tip on the axis of rotation and a cutting portion. The cutting portion includes first tip surfaces on opposite sides of the axis of rotation and second tip surfaces on opposite sides of the axis of rotation. Each first tip surface extends radially outward from the cutting tip to a corresponding second tip surface. Each second tip surface extends from a corresponding first tip surface to an outer periphery of the body. The first tip surfaces define a first tip angle measured through the axis of rotation that is oblique. The second tip surfaces define a second tip angle measured through the axis of rotation that is smaller than the first tip angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.