Traversing hoists – Having horizontally swinging boom or bridge – Having fluid ram directly actuating load cable or sheave...
Reexamination Certificate
2008-03-11
2008-03-11
Brahan, Thomas J (Department: 3654)
Traversing hoists
Having horizontally swinging boom or bridge
Having fluid ram directly actuating load cable or sheave...
C254S386000
Reexamination Certificate
active
11288954
ABSTRACT:
A crane comprising a boom formed as an elongate tubular structure and a line assembly to extend a line from a least one end of the boom. The line assembly may include a first bank of sheaves, a second bank of sheaves, a line reeved around the first and second banks of sheaves, and an extension mechanism controlling the distance between the first and second banks of sheaves. The second bank of sheaves and at least a portion of the extension mechanism being enclosed within boom.
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Mendenhall Todd
Morrill Nathan H.
Slobogean Methody W.
Smith Fred P.
Brahan Thomas J
Pate & Pierce & Baird
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