Drill for chiselling rock

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11850716
APP PUB NO 20200215674A1
SERIAL NO

16626184

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Importance

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Abstract

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A drill bit for chiselling rock 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 a cutting edge, an intake opening, and an intake passage and where the intake passage connects the intake opening to the delivery passage. A first portion of the intake passage which adjoins the intake opening has a first inclination with respect to a drill bit axis, a second portion of the intake passage which adjoins the hollow shank has a second inclination with respect to the drill bit axis, and the second inclination is greater than the first inclination.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
HILTI AKTIENGESELLSCHAFTSCHAAN

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bohn, Klaus-Peter Schaan, LI 11 58
Foser, Roland Ruggell, LI 12 41
Hartmann, Markus Mauerstetten, DE 123 890
Peters, Carsten Sax, CH 44 716
Pluemacher, Bastian Schwabmuenchen, DE 7 16

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