Hydraulic and earth engineering – Marine vessel portage – launching – or removing – Dry dock
Reexamination Certificate
2006-04-11
2006-04-11
Petravick, Meredith C. (Department: 3671)
Hydraulic and earth engineering
Marine vessel portage, launching, or removing
Dry dock
C114S044000
Reexamination Certificate
active
07025531
ABSTRACT:
A boat cradle has two pair of channels comprised of two lower channels supporting two upper channels. The lower channel members are each pivotally fixed to its own upright; the upper channels support a plastic pad that rotates to match the bottom and the inclination of the boat. One of the inner ends of the lower channels mounts a transfer block, and the other mounts a transfer plate. The lower channels are kept generally to a horizontal position by a leaf spring; one end bearing against the bottom of the web of the lower channels and the other end fixed to the upright post. A cut out on the upright post limits the lower pair of supports beyond the horizontal in an upward direction.
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Mayo Tara L.
Petravick Meredith C.
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