发明名称 WATER REMOVING DEVICE
摘要 A device for removing water from an artifically surfaced field comprises, in combination, a frame; at least one roller rotatably mounted in said frame and extending at least partially therebelow, said roller having a diameter of from about 2 to 20 inches and adapted to roll over said surfacing, there being sufficient weight exerted on said roller by the weight of the roller, the weight of the device, or preferably a combination thereof, so that said roller exerts at least 10 pounds per square inch pressure on said surface along the length dimension of said roller, said roller pressing said surface to express water therefrom to a position in front of said roller; suction means to remove said water from in front of said roller; and means on said frame to hold the water after it is removed.
申请公布号 US3683447(A) 申请公布日期 1972.08.15
申请号 USD3683447 申请日期 1970.06.25
申请人 MINNESOTA MINING AND MFG. CO. 发明人 WILLIAM W. STEVENSON
分类号 A01B29/02;A01G1/12;E01H1/10;(IPC1-7):A47L7/00 主分类号 A01B29/02
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