Patent · US Active

One-piece cutting head for a drill bit

US12070807B2 · kind B2 · utility

0Cited by

7References

25Claims

0Family size

Assignee

BLACK & DECKER INC. · US

Inventors

Juri SCHATZ · Limburg a. d. Lahn, DE
Alexander STANGL · Fürstenzell, DE
Florian Probst · Freising, DE
Christoph Gastinger · Hutthurm, DE

Key dates

Filing date	Mar 11, 2022
Grant date	Aug 27, 2024
Priority date	—
Expiry date	Oct 27, 2042

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23B2251/204
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A one-piece cutting head for a drill bit includes a main cutting edge that extends between radial extremities of the cutting head. The main cutting edge is disposed between main rake surfaces and main relief surfaces. Each main rake surface includes one or more rake facets, and each main relief surface includes one or more relief facets. Adjacent rake facets and relief facets define a primary transverse edge therebetween that extends away from the main cutting edge. The cutting head further includes a plurality of side cutters that are transverse to the main cutting edge and that propagate from the primary transverse edge to a radial extremity of the cutting head. Each side cutter includes a side cutting edge between a side cutting rake facet and a side cutting relief facet.

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