Mining machine having an extendable and retractable rotor arm and method of repairing an extendable and retractable rotor arm assembly
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Aug 13, 2002
Grant Date -
N/A
app pub date -
Jul 10, 2000
filing date -
Jul 10, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An extendable rotor arm for a mining machine includes a rotor arm having an end portion, a sleeve removably secured on at least part of the end portion, a rotor arm extension having an internal opening in which the sleeve and the end portion of the rotor arm are axially slidably received and nonrotatable, and a seal between an internal surface of the internal opening of the rotor arm extension and the sleeve. Methods of repairing an extendable rotor arm for a mining machine are also disclosed.
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