Safety shut-down device for two-component sprayer systems

Details Safety shut-down device for two-component sprayer systems Safety shut-down device for two-component sprayer systems

1989-07-07

1990-06-19

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

With selectively preset flow cutoff or initiating means

417 46, B05B 712

Patent

active

049345982

ABSTRACT:
A component deficiency safety device for two-component sprayer systems comprised of pneumatic and hydraulic/mechanical detection and actuation members. The safety device is adapted for placement in the compressed air line of a spray system, in particular, in the compressed air line that powers the spray component air motors and pumps. A pneumatically controlled main valve cuts-off the compressed air to the air motors upon detection of a deficiency condition. The main valve is controlled through a pneumatic control input which is fed from the output of an OR valve having a start-up input and a normal operation/safety shut-down input. Individual pressure transducer/valve assemblies are associated with each component supply line. The outputs from these assemblies form separate inputs to an AND valve which, in turn, enables the main valve only when both transducer/valve assemblies indicate the presence of proper component supply pressure.

REFERENCES:
patent: 2223913 (1940-12-01), Johnston
patent: 2765804 (1956-10-01), Dinkelkamp
patent: 3816025 (1974-06-01), O'Neill

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