Patent · US Active

Rotary claw drill bit

US10781641B2 · kind B2 · utility

0Cited by

6References

12Claims

0Family size

Assignee

Sandvik Intellectual Property AB · SE

Inventors

Hamidreza Gholiof · Sandviken, SE
Ralf Grief · Zeltweg, AT
Joseph Fader · Frohnleiten, AT

Key dates

Filing date	Jan 18, 2016
Grant date	Sep 22, 2020
Priority date	—
Expiry date	Jan 18, 2036

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21C35/18
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A modular rotary claw drill bit having a head is mountable at a body, the head mounting a plurality of front and gauge cutting picks. A cutting tip of each front pick is located at a different radial position at the head to optimise the flushing of cut material and to minimise pick wear during use.

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