Drainage device with bonded wear surface and method of fabricati

Details Drainage device with bonded wear surface and method of fabricati Drainage device with bonded wear surface and method of fabricati

1978-11-02

1981-05-05

Chin, Peter

Paper making and fiber liberation

Apparatus

Running or indefinite length product forming and/or treating...

162374, D21F 700

Patent

active

042657067

ABSTRACT:
A drainage device adapted to be mounted on a papermaking machine and positioned to support the moving web and to engage the undersurface of the web as it passes thereover to extract fluid downwardly from the web. The drainage device includes a main body portion and a multiplicity of wear resistant wafers bonded thereto with the upper surface of the wafers providing a bearing surface for the moving web as it passes thereover and the main body portion and the wafers having substantially the same coefficient of thermal expansion.

REFERENCES:
patent: 3067816 (1962-12-01), Gould
patent: 3250671 (1966-05-01), Walker
patent: 3351524 (1967-11-01), Duncan
patent: 3393124 (1968-07-01), Klingler et al.
patent: 3446702 (1969-05-01), Buchanan
patent: 4004969 (1977-01-01), Beauchemin

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