Ladder apparatus and method for large mobile equipment
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United States of America Patent
Stats
-
Nov 12, 1991
Grant Date -
N/A
app pub date -
May 30, 1989
filing date -
May 30, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ladder apparatus and method for use with large construction equipment, such as large tractors, mining trucks and similar vehicles that have an operator's platform or operating station located a substantial distance off the ground. The powered ladder has a fixed ladder portion rigidly attached to such a vehicle. The fixed ladder portion has spacedly attached thereto a frame element upon which a retractable ladder element is slidably disposed. The retractable ladder element is raised and lowered by an electric winch operable from the vehicle's operating station.
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Family
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Cited Art Landscape
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