Coating apparatus – Solid member or material acting on coating after application – With means to clean or recondition members
Patent
1990-12-05
1992-08-11
Wityshyn, Michael G.
Coating apparatus
Solid member or material acting on coating after application
With means to clean or recondition members
1525651, 118126, 118261, 118413, 118419, B05C 1104
Patent
active
051369672
ABSTRACT:
In order to clean the support region at the bottom end of a doctor element which is clamped to a support and is thereby held to the surface of spreadable material to be doctored, the leaf spring doctor element is removable from a stop on the support against which the leaf spring is clamped in operation by a plate pusher. The support is shaped to have a groove extending along the width of the stop and the support for the doctor element. A sidewall of the groove is defined in a ledge that is movable along the support and along the groove. The sidewall supports oscillation pulse transmitters. A liquid pulse transmitting medium in the groove transmits the oscillations across the grove to the area of the leaf spring support to be cleaned. The oscillation pulse transmitters may be a series of transmitters extending along the sidewall along the groove or may comprise a long bar shaped oscillator which is oscillated at its ends. Bearing pedestals at spaced intervals corresponding to the oscillation nodes may support the bar shaped oscillator.
REFERENCES:
patent: 4220113 (1980-09-01), Wohlfeil
patent: 4369731 (1983-01-01), Damrau
patent: 4716829 (1988-01-01), Wenzel
Madrzak Zygmunt
Sollinger Hans-Peter
J. M. Voith GmbH
Wityshyn Michael G.
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