Portable boring machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Feb 5, 1991
Grant Date -
N/A
app pub date -
Aug 2, 1989
filing date -
Aug 2, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A boring machine includes a power unit having a housing, a drive member for engaging a boring bar, and a motor for driving the drive member to rotate relative to the housing. The boring machine also includes a bearing assembly comprising an inner bearing member defining a passage through which the boring bar extends, and an outer bearing member in which the inner bearing member is fitted in a manner permitting angular movement of the inner bearing member relative to the outer bearing member about axes perpendicular to the axis of the passage defined by the inner bearing member. In use, the bearing assembly is attached to a workpiece in a manner preventing movement of the outer bearing member relative to the workpiece, and a collapsible torque transmission linkage connects the housing of the power unit to the outer bearing member, whereby the housing unit is held against rotation relative to the outer bearing member.
First Claim
Other Claims data not available