Beds – With means for relocating an invalid – With a hoisting – lifting – elevating – or raising device
Reexamination Certificate
2009-06-08
2011-11-22
Trettel, Michael (Department: 3673)
Beds
With means for relocating an invalid
With a hoisting, lifting, elevating, or raising device
C005S086100, C005S087100
Reexamination Certificate
active
08060958
ABSTRACT:
A powered lift apparatus for lifting and transporting a human body above a ground surface is disclosed, and comprises a base, a mast extending upwardly from the base, and a crane member pivotally mounted on the mast and movable with respect to the base. The apparatus further comprises a hydraulic drive mechanism configured to move the base over the surface and a hydraulic lifting mechanism configured to move the crane member with respect to the base. The apparatus also comprises a single hydraulic power source assembly connected to and powering both the hydraulic drive mechanism and the hydraulic lifting mechanism. The hydraulic power source assembly includes a control assembly configured to direct hydraulic power from the hydraulic power source assembly to the hydraulic drive mechanism and hydraulic lifting mechanism under user control.
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Proehl Jeffrey A.
Trettel Michael
Woods, Fuller, Shultz and Smith, PC
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