发明名称 CONCRETE-LEVELING SYSTEM
摘要 A leveling system for freshly poured concrete is provided comprising a hand screed and a hand float. The system includes a laser beam leveling system consisting of a laser transmitter mounted on the hand screed and a laser beam receiver target mounted on the hand float. The hand screed further includes an inclinometer mounted on top of the hand screed for maintaining the angle of the screed when the screed is used on sloped surfaces. Bubble levelers positioned on top of the hand screed and the hand float are used to maintain the hand screed and the hand float in a level position.
申请公布号 US2007206991(A1) 申请公布日期 2007.09.06
申请号 US20070679641 申请日期 2007.02.27
申请人 PRECISE TECH INDUSTRIES LTD. 发明人 BROTZEL NORMAN
分类号 E01C19/22 主分类号 E01C19/22
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