Ripper using a hydraulic hammer and a method for making the improvement
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United States of America Patent
Stats
-
Mar 6, 1990
Grant Date -
N/A
app pub date -
Nov 28, 1988
filing date -
Nov 28, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved ripper using a hydraulic hammer with a rotating long service life hammer tool is provided. The tool is cylindrical with a large cylindrical upper portion and a central portion of reduced diameter. The tool is retained in the hammer by means of a pin passing through the tool cavity of the hammer housing which prevents passage of the large upper portion.
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Cited Art Landscape
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