Patent · US Active

Manufacturing process, tool stand, and drill bit

US11577429B2 · kind B2 · utility

0Cited by

6References

7Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Guenter DOMANI · Bad Birnbach, DE
Carsten Peters · Dresden, DE
Florian SCHROEDER · Maienfeld, CH

Key dates

Filing date	Feb 3, 2021
Grant date	Feb 14, 2023
Priority date	—
Expiry date	Mar 5, 2041

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23B2251/046
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A drill bit includes a drill bit head, a multi-strand helix made up of three or more helix ribs, and a shank end along a drill bit axis. The multi-strand helix is made up of a conveyance area, a helix gradient, and a pitch. The helix ribs extend parallel to the drill bit axis in a first area adjacent to the drill bit head and a second area adjacent to the shank end.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.