Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Reexamination Certificate
2007-01-30
2007-01-30
Wilson, Lee D. (Department: 3723)
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
C029S281100
Reexamination Certificate
active
10880796
ABSTRACT:
A tube extraction device which facilitates the removal of a tube from a tube hole in a drum. The tube extraction device comprises a housing which is mounted over an exterior surface of the drum. The housing has an opening which receives a removed part of the tube. A wedge having a slanted face and a bottom edge is slidably mounted in the housing. At least one side thrusting ram and at least one drive down ram are slidably mounted in the housing. The side thrusting ram laterally moves the wedge so that the slanted face indents the tube inwardly, while the drive down ram drives the wedge down into the tube so that the tube collapses in the tube hole.
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Babcock & Wilcox Canada Ltd.
Marich Eric
Seymour Michael J.
Wilson Lee D.
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