Press felt

Details Press felt Press felt

1992-06-15

1993-07-06

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

139383AA, 162900, 428222, 428223, 428257, 428280, 428282, 428300, 428193, B32B 502

Patent

active

052252698

ABSTRACT:
A needled press felt for dewatering of cellulose pulp in a paper making machine consists of a multi layer base fabric having longitudinal and transversal threads. In order to improve the dewatering capability of the press felt and making it easy to assemble, the dewatering side of the press felt consists of layer of coarse yarn (3), which has a weight per unit of length, which is at least twice as great as the one of the remaining parallel yarns (1, 2) of the base fabric. Further a seam which can be opened is arranged transversally to the running direction of the felt in the paper making machine.

REFERENCES:
patent: 4283454 (1981-08-01), Buchanan
patent: 4503113 (1985-03-01), Smart
patent: 4533594 (1985-08-01), Buchanan
patent: 4537816 (1985-08-01), Booth et al.
patent: 4601785 (1986-07-01), Lilja et al.
patent: 4698250 (1987-10-01), Talonen et al.
patent: 4939025 (1990-07-01), Nicholas
patent: 5023132 (1991-06-01), Stanley et al.

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