CARGO UNLOADER FOR A VEHICLE
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United States of America Patent
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Issued Date -
Aug 8, 2024
app pub date -
Feb 3, 2023
filing date -
Feb 3, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
A tension-loaded drive mechanism (“mechanism”) is provided for a cargo unloader. The drive mechanism includes a compressor for increasing the pressure of a fluid. The drive mechanism further includes multiple bladders fluidly connected to the compressor to receive the fluid from the compressor and expand in a rearward direction along a longitudinal axis of a cargo bed. The mechanism further includes a strap system having multiple straps attached to each bladder. The strap system further includes multiple spools configured to apply a compression counter force via the straps to the associated bladders, such that the compression counter force increases the pressure of the fluid in the associated bladders to a predetermined drive pressure threshold. The spools are further configured to dispense an associated one of the straps at a predetermined stepped payout rate such that the associated bladders apply a drive force associated with the predetermined drive pressure threshold.
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