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公开(公告)号:US1799456A
公开(公告)日:1931-04-07
申请号:US48931930
申请日:1930-10-17
申请人: SAMUEL PETERSEN , GEORGE B ARCHER
发明人: CAVERT EDWARD N
IPC分类号: B63C3/14
CPC分类号: B63C3/14
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公开(公告)号:US09926053B1
公开(公告)日:2018-03-27
申请号:US15404088
申请日:2017-01-11
摘要: An electric powered auxiliary drive operates the elevator of a boat lift via the lift's hand wheel.
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公开(公告)号:US08590473B1
公开(公告)日:2013-11-26
申请号:US13073075
申请日:2011-03-28
摘要: One of more safety catches attachable to water vessels for preventing rollback during launch and recovery operations. Each safety catch includes a pivotally attached catch arm for mating with a notched groove in an inclined surface to prevent the rollback.
摘要翻译: 安装在水箱上的更多安全系统之一,可防止发射和恢复操作中的回滚。 每个安全锁扣包括一个可枢转地附接的锁定臂,用于与倾斜表面中的凹口槽配合以防止回滚。
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公开(公告)号:US08807061B1
公开(公告)日:2014-08-19
申请号:US14086742
申请日:2013-11-21
摘要: One of more safety catches attachable to water vessels for preventing rollback during launch and recovery operations. Each safety catch includes a pivotally attached catch arm for mating with a notched groove in an inclined surface to prevent the rollback.
摘要翻译: 安装在水箱上的更多安全系统之一,可防止发射和恢复操作中的回滚。 每个安全锁扣包括一个可枢转地附接的锁定臂,用于与倾斜表面中的凹口槽配合以防止回滚。
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