Roll changing apparatus

Winding – tensioning – or guiding – Unwinding – With supply coil replenishment

Reexamination Certificate

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Reexamination Certificate

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06983909

ABSTRACT:
An apparatus exchanges a roll remnant and a full roll. The apparatus comprises a dump cradle and a roll-transfer surface. The roll-transfer surface includes an extension element capable of transitioning between a retracted position and an extended position. The apparatus also includes a roll-delivery element capable of providing a fresh roll of material to the dump cradle and of removing a remnant of a previous roll from the apparatus.

REFERENCES:
patent: 1026369 (1912-05-01), Robeson
patent: 1655226 (1928-01-01), Higgins et al.
patent: 2194125 (1940-03-01), Rinchart
patent: 3062465 (1962-11-01), Hunter
patent: 4298173 (1981-11-01), Johansson
patent: 4373854 (1983-02-01), Schultheis
patent: 4767076 (1988-08-01), Tagawa
patent: 4807526 (1989-02-01), Troyer et al.
patent: 4905925 (1990-03-01), Kremar
patent: 5289985 (1994-03-01), Cocchi et al.
patent: 5906333 (1999-05-01), Fortuna et al.
patent: 5934604 (1999-08-01), Klimek
patent: 2004/0206848 (2004-10-01), Martinez
patent: 2005/0017118 (2005-01-01), Finetti et al.
patent: 41 41 216 (1992-06-01), None
patent: 54-039346 (1979-03-01), None
patent: 5-221565 (1993-08-01), None

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