Paper making and fiber liberation – Processes and products – Conditioning – preparing or repairing of apparatus
Reexamination Certificate
2006-12-05
2006-12-05
Halpern, Mark (Department: 1731)
Paper making and fiber liberation
Processes and products
Conditioning, preparing or repairing of apparatus
C162S198000, C162S111000, C162S112000, C162S202000, C162S272000, C134S010000, C134S032000, C134S034000, C134S042000, C427S194000, C427S195000
Reexamination Certificate
active
07144478
ABSTRACT:
The invention provides a method of preventing contamination of a dryer of a paper machine so that predetermined effects of contamination prevention over the long term can always be ensured while maintaining satisfactory drying efficiency. With the method of preventing contamination of the surface of the drum dryer used in a paper machine, a predetermined amount of a surface treatment agent P is continuously supplied to the surface of the drum dryer C1in rotation, facing a paper strip W, while the paper strip is being fed by the paper machine in operation.
REFERENCES:
patent: 3014832 (1961-12-01), Donnelly
patent: 4-130190 (1992-01-01), None
patent: 6-280181 (1994-04-01), None
patent: 7-292382 (1995-07-01), None
patent: 7-292591 (1995-07-01), None
patent: WO 96/38638 (1996-05-01), None
International Search report for PCT/JP99/05021.
Halpern Mark
Maintech Co., Ltd.
Potter Anderson & Corroon LLP
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