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公开(公告)号:US20190390419A1
公开(公告)日:2019-12-26
申请号:US16561845
申请日:2019-09-05
申请人: Safe Rack LLC
摘要: A gangway comprising a fixed platform. A support structure is connected to the fixed platform in a manner that allows the support structure to rotate with respect to the fixed platform. A releasable position locking assembly that inhibits rotation of the support structure in a raising direction is also provided. The releasable locking assembly includes a closed-loop fluid arrangement.
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公开(公告)号:US10458080B2
公开(公告)日:2019-10-29
申请号:US16174742
申请日:2018-10-30
申请人: Safe Rack LLC
摘要: A gangway comprising a fixed platform. A support structure is connected to the fixed platform in a manner that allows the support structure to rotate with respect to the fixed platform. A releasable position locking assembly that inhibits rotation of the support structure in a raising direction is also provided. The releasable locking assembly includes a closed-loop fluid arrangement.
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公开(公告)号:US3570032A
公开(公告)日:1971-03-16
申请号:US3570032D
申请日:1969-03-07
申请人: VALENTINE E MACY JR , EARLE F ALLEN
发明人: ALLEN EARLE F
CPC分类号: E02B17/0854 , E01D15/02
摘要: THE INVENTION IS A VERTICAL LIFT BRIDGE WHICH IS RAISED UTILIZING HYDRAULICALLY DRIVEN PISTONS. IN ORDER THAT THE BRIDGE MAY BE RAISED TO A SUBSATANTIALLY HEIGHT, THE HYDRAULIC DRIVE SYSTEM IS ARRANGED TO RAISE THE BRIDGE IN A SERIES OF STEPS. THUS, EACH HYDRAULIC DRIVE MOTOR OPERATES ON A VERTICAL RAIL OR CHANNEL USING RELEASABLE GRIPPING SHOES
WHICH PERMITS THE DRIVE CYLINDER TO BE FULLY EXTENDED A NUMBER OF TIMES SO THAT THE BRIDGE MAY BE RAISED TO A HEIGHT EQUAL TO MULTIPLES OF THE STROKE OF THE HYDRAULIC DRIVE MOTOR.-
公开(公告)号:US3394420A
公开(公告)日:1968-07-30
申请号:US48395165
申请日:1965-08-31
申请人: VLADIMIR POPOV
发明人: VLADIMIR POPOV
IPC分类号: E01D15/02
CPC分类号: E01D15/02
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公开(公告)号:US2889565A
公开(公告)日:1959-06-09
申请号:US50590755
申请日:1955-05-04
发明人: HARTY RALPH V
IPC分类号: E01D15/02
CPC分类号: E01D15/02
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公开(公告)号:US2755493A
公开(公告)日:1956-07-24
申请号:US27675752
申请日:1952-03-15
申请人: MAX MILLER
发明人: MAX MILLER
IPC分类号: E01D15/02
CPC分类号: E01D15/02
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公开(公告)号:US2652783A
公开(公告)日:1953-09-22
申请号:US9678349
申请日:1949-06-02
申请人: WHITING CORP
发明人: SKINNER ASA W
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公开(公告)号:US2198810A
公开(公告)日:1940-04-30
申请号:US19614338
申请日:1938-03-16
申请人: FINKE RALPH W
发明人: FINKE RALPH W
IPC分类号: E01D15/02
CPC分类号: E01D15/02
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公开(公告)号:US2103661A
公开(公告)日:1937-12-28
申请号:US71545834
申请日:1934-03-14
申请人: BROWN JR THOMAS E
发明人: BROWN JR THOMAS E
IPC分类号: E01D15/02
CPC分类号: E01D15/02
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公开(公告)号:US1729637A
公开(公告)日:1929-10-01
申请号:US16896827
申请日:1927-02-17
申请人: WADDELL & HARDESTY
发明人: WILLIAMS WILLIAM G
IPC分类号: E01D15/02
CPC分类号: E01D15/02
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