Collapsible hoisting device for use in the construction of large metal containers, and removable accessory applicable thereto
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United States of America Patent
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Apr 25, 2017
Grant Date -
May 16, 2013
app pub date -
Jan 4, 2013
filing date -
Jul 7, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
A collapsible hoisting device for use in the construction of large metal containers and to a removable accessory applicable thereto. It facilitates construction procedures by reducing project times and costs. The collapsible device includes a column (2) along which respective upper bodies (6) and lower bodies (7) that have been inserted into said column (2) move. The bodies (6, 7) are linked by an extendable means (8). The upper bodies (6) and lower bodies (7) have a corresponding mechanism to lock or attach (9) to the column (2), The column (2) is mounted so that it pivots with respect to a base (1) and the upper body (6) has a housing (609) suitable for the insertion of a removable, fingernail-shaped accessory (12).
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