Hydraulic jack
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United States of America Patent
Stats
-
Jul 1, 1980
Grant Date -
N/A
app pub date -
Sep 29, 1978
filing date -
Sep 29, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hydraulic jack of the type typically employed for automotive repair work is equipped with a frame supported on wheels, a hydraulic unit for powering the jack, and an elevator mechanism for raising a lift plate in response to a ram actuated by the hydraulic unit. The hydraulic unit is supported in the frame without bolts or other fastening devices and thus is easily removable for repair or replacement. The elevator mechanism includes pivotable elevator arms for raising a roller which travels along an S-shaped lever. The lever supports the lift plate at one end and is pivoted in the frame at its other end.
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