Hand tool with toothed rotors for dislodging material from a surface
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United States of America Patent
Stats
-
Mar 5, 1985
Grant Date -
N/A
app pub date -
Oct 19, 1982
filing date -
Oct 19, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A scarifying tool has a plurality of modules, each module consisting of a pair of cutter discs with bevelled teeth, rotatably mounted at an angle to the direction of travel to provide a sideways tearing action on the material to be dislodged as the discs are moved along the surface of the roof. Each module is mounted independently, to provide an independent suspension having several degrees of freedom. Adjustable depth control is provided by moving the discs relative to substrate contacting members to vary the depth of penetration of the cutters below the skids.
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