Static structures (e.g. – buildings) – Shaped or strengthened by fluid pressure – Fluid pressure is subatmospheric
Patent
1986-04-07
1987-06-09
Friedman, Carl D.
Static structures (e.g., buildings)
Shaped or strengthened by fluid pressure
Fluid pressure is subatmospheric
184106, 52174, E04B 134
Patent
active
046710248
ABSTRACT:
A drip pan adapted to catch dirt and debris falling from a vehicle that is driven onto it, thereby protecting a garage floor surface underlying the drip pan from soiling or contamination. The drip pan is a rectangular sheet of plastic that is sized to extend beyond the perimeter of the vehicle with which it will be used. The edges of the plastic sheet are rolled under and thermally sealed or glued along a line parallel with the perimeter of the sheet, forming a sleeve. In one embodiment, a radially compressible cylindrical material, such as pipe insulation tubing, is inserted into the sleeves to provide a raised ridge around the perimeter of the sheet. In a second embodiment, the sleeves on each side are hermetically sealed and provided with air inflation valves so that they can be inflated to create the ridge. The ridge serves as a side wall to contain the salt, ice, or dirt that falls off the vehicle onto the sheet; a vehicle can be driven over the ridge without damaging it or permanently deforming it. The drip pan is washable and is inexpensive so that it may be discarded and readily replaced when worn.
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patent: 4484661 (1984-11-01), Evenson
Anderson Ronald M.
Friedman Carl D.
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