Extendable sleeper and method of operation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jul 5, 2011
Grant Date -
Jan 27, 2011
app pub date -
Jul 27, 2009
filing date -
Jul 27, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Embodiments described herein relate to extendable sleepers for a tractor and methods of operating such a sleeper. In one embodiment, the tractor is connectable with a trailer. The trailer has a front surface. The extendable sleeper comprises a fixed portion disposed on the tractor, an extendable portion attached to the fixed portion, the extendable portion being movable between a retracted position and an extended position, and a mover operatively connected with the extendable portion for moving the extendable portion between a retracted position and an extended position. A control system is operatively connected with the mover for controlling operation of the mover. The control system operates in an extension mode where position of the extendable member is adjustable, a teach mode where a significant location of the extendable member is programmed into the control system, and an automatic mode where position of the extendable member is maintained.
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