发明名称 STACKABLE WEIGHTS FOR LIGHTER-THAN-AIR BALLOONS
摘要 An adjustable weight for tethering lighter-than-air balloons that may include a plurality of individual weights secured together by a friction fit. The weights each have a top wall and a side wall extending from a periphery of the top wall. The side wall includes a top tier adjacent to the top wall and a base tier extending from the top tier. The base tier is larger in size than the top tier to facilitate nesting of adjacent weights, and a step is formed at the intersection of the top tier and the base tier. An attachment member extends from the weight and provides a tethering point for lighter-than-air balloons.
申请公布号 US2013236663(A1) 申请公布日期 2013.09.12
申请号 US201213415878 申请日期 2012.03.09
申请人 NELSON DAVID C.;SCHROEDER WESLEY A. 发明人 NELSON DAVID C.;SCHROEDER WESLEY A.
分类号 B32B1/08 主分类号 B32B1/08
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