Apparatus and method for controlling the thickness of coatings o

Details Apparatus and method for controlling the thickness of coatings o Apparatus and method for controlling the thickness of coatings o

1987-02-24

1988-03-22

Lusignan, Michael R.

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

118405, 118407, 118413, 118712, 427356, 427361, B05D 312

Patent

active

047327766

ABSTRACT:
An apparatus and a method for controlling the thickness of coatings on webs at a plurality of cross-directional positions while a coating procedure is taking place. The deflection of the metering element is controlled automatically in response to measurements of the uncoated and coated web that determine the thickness of the coating being applied at a plurality of cross-directional positions. In one preferred embodiment, a bimetallic member having a plurality of separated tongue-like extensions corresponding to cross-directional positions along the blade is used, the tongue-like extensions pressing on the back of the blade at their ends in response to heat applied dependent upon the determined thickness of the coating being applied. In another embodiment, pneumatic actuators whose pressure may be varied in response to the determined thickness are used to adjust the position of the metering element at a plurality of cross-directional positions to locally vary the thickness of the applied coating.

REFERENCES:
patent: 4076864 (1978-02-01), Wallsten
patent: 4135006 (1979-01-01), Readal et al.
patent: 4358481 (1982-11-01), Wallsten

Affiliated with

Also associated with

Rating

Apparatus and method for controlling the thickness of coatings o does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for controlling the thickness of coatings o, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for controlling the thickness of coatings o will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-441400