发明名称 BOAT LANDING APPARATUS WITH ELEVATION DEVICE
摘要 A boat landing apparatus with elevation device includes a boat landing apparatus and at least one elevation device. The at least one elevation device may be attached to either or both ends of the boat landing apparatus. Each elevation device includes a drive shaft, a pair of elevating arms, a pair of elevating rollers, and a drive assembly. The drive shaft is pivotally retained by a pair of roller assemblies. The pair of elevating rollers are pivotally retained by one end of each elevating arm and the other end of each elevating arm is rigidly attached to the drive shaft. The drive assembly is used to rotate the drive shaft such that thereof rotates the elevating roller into an elevated orientation.
申请公布号 US2002178986(A1) 申请公布日期 2002.12.05
申请号 US20010002383 申请日期 2001.10.20
申请人 CRIFASE PHILIP A.;CRIFASE JOY P. 发明人 CRIFASE PHILIP A.;CRIFASE JOY P.
分类号 B63C3/02;B63C3/06;(IPC1-7):B63B59/02 主分类号 B63C3/02
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