Isolator plate assembly for rock breaking device

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United States of America Patent

PATENT NO 9089995
APP PUB NO 20120060816A1
SERIAL NO

13301424

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Importance

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Abstract

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A rock breaking device employs a falling weight and a striker pin or other tool held within a tool holding structure supported by a recoil assembly includes a number of isolator structures that protect the rock breaking device by absorbing excess forces that may be applied to the recoil assembly. Each isolator structure includes a front plate that extends below a lower side of a recoil tube flange. In new rock breaking devices, the front plates may be incorporated as part of the isolator structures. Alternatively, an existing rock breaking device can be retrofitted by welding a heavy plate onto the front of an existing front plate of the isolator structures. The heavy plate extends beyond the lower side of the recoil tube flange to provide greater strength.

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Patent Owner(s)

Patent OwnerAddress
NELSON CRAIGSEATTLE WA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nelson, Craig Gordon, US 59 1163

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