Apparatus for digging surface trenches in the ground
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United States of America Patent
Stats
-
Jan 24, 1989
Issued Date -
N/A
app pub date -
Feb 23, 1988
filing date -
Jan 9, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An elongated rigid bar is arranged to be secured at one of its ends to a power unit and is enclosed through most of its length in a rigid housing. Longitudinal passageways are provided interiorly of the housing for receiving a cross link drive chain trained over a sprocket on the power unit and on a cross shaft supported at a free end of the housing. The cross shaft supports digging units. A ground engaging support wheel is attached to the housing adjacent its free end. The housing has a semi-flexible guard mounted on it adjacent the digging units.
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International Classification(s)
Cited Art Landscape
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