End dam seal for blade type fountain coaters

Details End dam seal for blade type fountain coaters End dam seal for blade type fountain coaters

1982-02-02

1983-08-16

McIntosh, John P.

Coating apparatus

Immersion or work-confined pool type

Work-confined pool

118413, B05C 502

Patent

active

043984940

ABSTRACT:
An end dam sealing means for at least one end of a coating application chamber defined in part by a doctor blade and backing surface means such as a roll on which a web to be coated travels continuously, is adapted for engaging sealingly with a chamber surface area, the doctor blade and the backing surface means roll, and the sealing means has a device for draining coating material that may migrate from the application chamber between the sealing means and the backing surface means roll. Static seal is provided for the contiguous end of a pressure drop chamber and a slit orifice which communicate with the coating application chamber.

REFERENCES:
patent: 2918899 (1959-12-01), Munton et al.
patent: 3348526 (1967-10-01), Neubauer
patent: 4250211 (1981-02-01), Damrau et al.
patent: 4327662 (1982-05-01), Damrau

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