Coating apparatus – Projection or spray type – Plural projectors
Patent
1995-04-12
1996-08-27
Czaja, Donald E.
Coating apparatus
Projection or spray type
Plural projectors
118314, 118323, B05B 706
Patent
active
055497535
ABSTRACT:
Molded fibrous workpieces of various cross sectional configurations are coated with a polymeric latex foam coating material to encapsulate fibers and dust within the exterior surfaces of the workpieces. The foam coating is applied by passing the workpieces through a coating chamber filled with the polymeric foam so that the workpieces are totally immersed in the foam coating as the workpieces pass through the chamber. Openings for introducing the workpieces into and discharging the workpieces from the chamber have a configuration complementary to the transverse configuration of the workpieces. The foam coating is introduced into the chamber both above and below the path of the workpieces through the coating chamber to assure that the coating chamber remains fully charged with the foam coating. Brushes or wiper blades spread the foam coating over the exterior surfaces of the workpieces.
REFERENCES:
patent: 1952502 (1934-03-01), Kinkead
patent: 3390001 (1968-06-01), Beck
patent: 4333417 (1982-06-01), Camp et al.
patent: 5277785 (1994-01-01), Van Anglen
Matthews Kent R.
Morton Lowell K.
Schakel Eric G.
Young James F.
Czaja Donald E.
Padgett Calvin
Quinn Cornelius P.
Schuller International, Inc.
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