Fluid handling – Liquid level responsive or maintaining systems – Control of outflow from tank
Patent
1988-10-26
1989-11-28
Nilson, Robert G.
Fluid handling
Liquid level responsive or maintaining systems
Control of outflow from tank
137893, 222 66, 239318, B01F 504
Patent
active
048830860
ABSTRACT:
An apparatus for distributing liquid fertilizers, pesticides and other chemicals by aspiration into irrigation conduits. Liquid passing through a conduit attached to a storage vessel syphons the chemicals out of the storage vessel and into a liquid distribution system. An anti-backflow check valve is provided to prevent liquid from entering the supply container when liquid flow is stopped in a liquid distribution system. A float-controlled valve is also provided which closes when the liquid level in the supply vessel reaches a predetermined level in order to prevent air from entering the system. The amount of chemical aspirated into the liquid distribution system is controlled by a valve. The apparatus is easily assembled and disassembled for cleaning or repair, and can be connected to existing liquid distribution systems. Larger or remote reservoirs can be incorporated depending on the application.
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