Patent · US Active

Chisel

US11213939B2 · kind B2 · utility

2Cited by

9References

16Claims

0Family size

Assignee

Hilti Aktiengesellschaft · LI

Inventors

Zsolt Kosa · Kecskemét, HU
Aviral Shrot · Gettorf, DE
Carsten Peters · Dresden, DE
Attila Kenez · Kecskemét, HU

Key dates

Filing date	Mar 21, 2017
Grant date	Jan 4, 2022
Priority date	—
Expiry date	Sep 21, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25D2250/211
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The chisel includes a tip (2), a working section (6), and an impact surface (3), and a longitudinal axis (7) that extends through the tip (2), the working section (6), and the impact surface (3). The working section (6) includes multiple webs (14) that extend along the longitudinal axis (7) and that are distributed about the longitudinal axis (7) in the circumferential direction (15). For at least one of the webs (14), a dimension (27) in the circumferential direction (15) increases by at least one-third with increasing distance (26) from the longitudinal axis (7). The webs become significantly wider toward the outside and thinner toward the longitudinal axis.

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