Multi-Stage Telescopic Cylinders With Individual Controlled Stages
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United States of America Patent
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Mar 10, 2016
app pub date -
Sep 3, 2015
filing date -
Sep 4, 2014
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Abstract
A vehicle hoist telescopic stage cylinder has first and second stage cylinders. A control is fluidly coupled with the first and second stage cylinders. The control valve moves fluid to and from the first stage cylinder independent of the second stage cylinder. Also, it moves fluid to and from the second stage cylinder independent of the first stage cylinder. The first stage cylinder extends and retracts independently of the second stage cylinder. The second stage cylinder extends and retracts independently of the first stage cylinder.
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