Pneumatic pump switching apparatus

Details Pneumatic pump switching apparatus Pneumatic pump switching apparatus

2006-05-02

2006-05-02

Fiorilla, Chris (Department: 1734)

Coating apparatus

Projection or spray type

Applying solid particulate material

C118S300000, C118S309000

Reexamination Certificate

active

07037374

ABSTRACT:
A coating material spray application system includes first and second coating material supplies; first and second coating material pumps and first and second feed hoses; wherein each feed hose is in communication with a respective one of the coating material pumps and has a respective coating material hose outlet. Each pump is operable to transfer coating material from a respective one of the supplies to the respective feed hose. A spray booth may be used and a coating material spray gun operable within said spray booth, with the spray gun being connectable to a selected one of the coating material hose outlets. A source of pressurized air operates the pumps; and a pneumatic switch accessible from within the spray booth is operable to connect the pressurized air to a selected one of said coating material pumps which corresponds to the selected coating material hose outlet.

REFERENCES:
patent: 3924810 (1975-12-01), Otterstetter
patent: 3994117 (1976-11-01), Kinney
patent: 4232055 (1980-11-01), Shaffer
patent: 4248379 (1981-02-01), Hollstein et al.
patent: 4561380 (1985-12-01), Mulder et al.
patent: 6112999 (2000-09-01), Fingleton et al.
patent: 6315214 (2001-11-01), Fingleton et al.
patent: 100 03 077 (2001-08-01), None
Clippard Minimatic, CAD Drawing No. 11900, Dec. 30, 1971.

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