Conveyors: power-driven – Conveyor section – Live roll
Reexamination Certificate
2007-09-04
2007-09-04
Bidwell, James R. (Department: 3651)
Conveyors: power-driven
Conveyor section
Live roll
C198S952000, C193S037000
Reexamination Certificate
active
11162751
ABSTRACT:
Heat is transferred away from the rollers and base of a printer heater by introducing chilled water into the rollers and the base. The paper upon which print has been applied remains at an elevated temperature so that the drying of the print is not delayed. A conventional roller is modified by having an annular cavity formed in its interior and providing fluid communication between the cavity and a chiller. A conventional base is modified by the addition of a serpentine passageway formed in its interior and providing fluid communication between the passageway and the chiller. Cold water provided by the chiller to the roller prevents breaking down of oil in the bearings of the roller. Cold water provided by the chiller to the base carries the heat from the base, increasing the safety of the workplace and extending the working lifetime of the base and its related parts.
REFERENCES:
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patent: 4049372 (1977-09-01), Bloom
patent: 5918719 (1999-07-01), Hino et al.
patent: 6523775 (2003-02-01), Fan
patent: 6619471 (2003-09-01), Downie et al.
patent: 6672098 (2004-01-01), Norris
patent: 6918708 (2005-07-01), Noda et al.
Bidwell James R.
Chaclus Angelo N.
Kirkman Christopher H.
Pitney Bowes Inc.
Shapiro Steven J.
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