End dam for waterbox of paper making machine

Details End dam for waterbox of paper making machine End dam for waterbox of paper making machine

1999-06-16

2000-09-05

Edwards, Laura

Paper making and fiber liberation

Apparatus

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

118410, 118419, D21H 2334

Patent

active

06113743&

ABSTRACT:
The present invention discloses a pair of end dams for use on a waterbox on a papermaking machine. The end dam has a front curved foot-like structure having a mounting bracket on its back side for attachment to the backside of the waterbox while the curved end has a packing material on its underside which comes into contact with the steel roll of the papermaking machine. The packing material serves as an end dam communicating between the pond level control dam located on the forward shelf of the waterbox and the leading edge of the steel roll in such a way that the liquids are retained within the waterbox instead of being spilled onto the surrounding floor. The end dam of the present invention is secured to the waterbox with a screw-type clamp.

REFERENCES:
patent: 4259921 (1981-04-01), Wallsten
patent: 4327662 (1982-05-01), Damrau
patent: 4354452 (1982-10-01), Patterson
patent: 4358481 (1982-11-01), Wallsten
patent: 4426412 (1984-01-01), Gerbert et al.
patent: 4434194 (1984-02-01), Gerbert et al.
patent: 4503804 (1985-03-01), Damrau
patent: 4706603 (1987-11-01), Wohlfeil
patent: 5795393 (1998-08-01), Isfort

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