Land vehicles – Wheeled – Extensible
Patent
1996-11-04
1998-12-08
Johnson, Brian L.
Land vehicles
Wheeled
Extensible
280 4323, 280 4324, 280 4734, 410 66, 410 80, 410 84, B62B 302
Patent
active
058459146
ABSTRACT:
A portable cart for transporting highly sensitive equipment such as an excimer laser is disclosed. The portable cart includes a first frame support including spaced feet for supporting the equipment on a floor surface. A second frame support includes rollers for rolling movement of the equipment. The first frame support is vertically movable relative to the second frame support. Expandable/retractable shock absorbing element are positioned between the first and second frame supports. The shock absorbing elements when expanded lift the first frame support including the spaced feet above a floor surface while rollers of the second frame support to engage a floor surface for rolling shock absorbing movement of the equipment. The expandable/retractable shock absorbing elements when retracted lower the first frame support to cause the spaced feet to engage a floor surface for fixed support of the highly sensitive equipment on a floor surface. In order to transport the portable cart in a truck van, the truck van includes floor supports on a truck van floor surface for corresponding engagement with extensive/retractable arms associated with the portable cart. Preferably, the floor supports on the truck van floor surface provide a three point engagement with the extensive/retractable arms of the portable cart.
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Johnson Brian L.
Laser Vision Centers, Inc.
Yu Min
LandOfFree
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