Fast response film coater

Details Fast response film coater Fast response film coater

1992-06-30

1994-08-09

Drodge, Joseph W.

Coating apparatus

Projection or spray type

222336, 239124, 239584, 267162, 417385, B05C 500

Patent

active

053363205

ABSTRACT:
A film coater for applying a coating material to selected areas on a target substrate, such as a printed circuit board, having a vented dispenser body with a plunger moveable therein between an open and closed position. A flow of pressurized air which moves the plunger to the open position is controlled by a valve carried by the dispenser body, and a plurality of springs return the plunger to the closed position. The number of return springs is selected to provide a variable biasing force so that movement of the plunger is controlled to eliminate or at least significantly reduce hammering, tapering and drooling, particularly when the dispenser is operated intermittently.

REFERENCES:
patent: 2779627 (1957-01-01), Gray
patent: 2893026 (1959-07-01), Sillars et al.
patent: 3394631 (1968-07-01), Thompson
patent: 3702107 (1972-11-01), Rood et al.
patent: 3816165 (1974-06-01), Horvath et al.
patent: 3921570 (1975-11-01), Hogstrom et al.
patent: 3940072 (1976-02-01), Ishikawa et al.
patent: 4022381 (1977-05-01), Karliner
patent: 4180011 (1979-12-01), Halicki
patent: 4337281 (1982-06-01), Boone
patent: 4396529 (1983-08-01), Price et al.
patent: 4687137 (1987-08-01), Boger et al.
patent: 4753819 (1988-06-01), Shimada
patent: 4785996 (1988-11-01), Ziecker et al.
patent: 4809885 (1989-03-01), Hayashi et al.
patent: 4872417 (1989-10-01), Kuwabara et al.
patent: 4880663 (1989-11-01), Shimada
patent: 4886013 (1989-12-01), Turner et al.
patent: 4957783 (1990-09-01), Gabryszewski
patent: 4987854 (1991-01-01), Hall
patent: 5141165 (1992-08-01), Sharpless et al.
Pertinent pages from a Key Bellevilles, Inc. catalog entitled "Precision (Belleville) Disc Springs" date unknown.

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