Barrel for rock breaking tool and method of use

United States of America Patent

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Feb 13, 1990
Issued Date
N/A
app pub date
Nov 28, 1988
filing date
Sep 15, 1986

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Expired

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Abstract

A rock breaking method includes drilling a hole in rock, filling the hole with water, inserting a short barrel of a rock breaking tool into the hole entrance, covering the tool with a recoil restraining mat, and discharging a cartridge down the barrel.

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Patent Owner(s)

Patent Owner	Address
DENEL (PROPRIETARY) LIMITED	ERASMUSKLOOF EXTENSION 4 DENEL BUILDING JOCHEMUS STREET PRETORIA

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Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Muller, Thomas M	Boksburg, ZA	2	27
Van, Der Westhuizen Hermanus Q	Pretoria, ZA	2	27

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Barrel for rock breaking tool and method of use

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07276786

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PATENT NO	4900092
SERIAL NO	07276786
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07276786

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