Drill for chiseling stone

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11691204
APP PUB NO 20200156163A1
SERIAL NO

16626257

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Abstract

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A drill bit for chiseling stone includes an impact face at an insertion end of the drill bit, a hollow shank, where a delivery passage is defined within the hollow shank, and a drill head, where the drill head has, at a front end of the drill head, a cutting edge, an intake opening, and an intake passage. The intake passage connects the intake opening to the delivery passage. A cross section of the intake passage increases from the intake opening to the delivery passage.

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Patent Owner(s)

Patent OwnerAddress
HILTI AKTIENGESELLSCHAFT9494 SCHAAN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bohn, Klaus-Peter Schaan, LI 11 65
Foser, Roland Ruggell, LI 13 50
Hartmann, Markus Mauerstetten, DE 136 960
Pluemacher, Bastian Schwabmuenchen, DE 7 20

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