Pin puller for crane connections
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United States of America Patent
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Nov 14, 2017
Grant Date -
Aug 21, 2014
app pub date -
Mar 15, 2013
filing date -
Feb 21, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A pin puller is mounted between first and second connectors, preferably connectors on a lift crane, each of the connectors having a hole there though. The pin puller includes: a) first and second support frame members; b) a first pin with a first end located in the hole of the first connector and a second end inside the first support frame member; c) a second pin with a first end located in the hole of the second connector and a second end inside the second support frame member; d) at least one linear actuator connected to the first and second pins; and e) a length adjustment device between the first and second support frame members, with its length adjusted so as to force the first support frame member into contact with the first connector and the second support frame member into contact with the second connector.
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