发明名称 Aluminum stoplogs
摘要 A new and improved type of aluminum stoplog for use in stoplog gates. The stoplog is made of extruded channel members, has lifting hooks on its top end to facilitate removal, and has a recessed region running along its bottom end to accommodate the lifting hooks of an adjacent and lower stoplog of like design. The stoplog also includes improved sealing means about a part of its perimeter.
申请公布号 US4439061(A) 申请公布日期 1984.03.27
申请号 US19820348802 申请日期 1982.02.16
申请人 WHIPPS, INC. 发明人 WHIPPS, GEORGE E.
分类号 E02B7/24;(IPC1-7):E02B7/36;E02B7/54 主分类号 E02B7/24
代理机构 代理人
主权项
地址