B - Operations – Transporting – 05 – C
Patent
B - Operations, Transporting
05
C
32/40
B05C 5/02 (2006.01) B05B 17/06 (2006.01) B05C 11/02 (2006.01) B05C 11/04 (2006.01) B05C 21/00 (2006.01) D21H 25/10 (2006.01)
Patent
CA 2031705
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 groove 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.
Madrzak Zygmunt
Sollinger Hans-Peter
J. M. Voith G.m.b.h.
Mccarthy Tetrault Llp
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