Composite doctor blade assembly for pulp or papermaking machine

Details Composite doctor blade assembly for pulp or papermaking machine Composite doctor blade assembly for pulp or papermaking machine

1990-04-23

1992-05-05

Fisher, Richard V.

Paper making and fiber liberation

Apparatus

Web creping or crinkling type

162272, 1525651, 101425, 118261, D21G 300, D21G 302, D21G 304

Patent

active

051104156

ABSTRACT:
A doctor blade is made from an elongated strip of reinforced composite material which material forms fibrillated protrusions when cut. A plurality of cuts are made in the material which form recesses or tabs. The recesses are offset to increase the effective thickness of the strip so that it can be inserted longitudinally or transversely into a doctor blade holder. The fibrillated protrusions maintain the recesses in an offset position.

REFERENCES:
patent: 2077816 (1937-04-01), Vickery
patent: 3163878 (1965-01-01), Smith et al.
patent: 3356067 (1967-12-01), Krasnow et al.
patent: 3778861 (1973-12-01), Goodnow
patent: 4141112 (1979-02-01), Klemz
patent: 4367120 (1983-01-01), Hendrikz
patent: 4549933 (1985-10-01), Judd et al.

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