Fertilizer pump
First Claim
Patent Images
1. A pump for injecting fertilizer or other material into a pressurized water supply line, comprising:
- an impeller connectable in parallel across said pressurized water supply line and including a housing having an inlet connectable to said pressurized water supply line, and outlet vented to the atmosphere so as to be at substantially atmospheric pressure, and impeller vanes rotatably mounted within the housing to be rotated by the pressurized water flowing therethrough from its inlet directly to the atmosphere via its outlet;
and an injector including an inlet connectable to a source of the material to be injected, an outlet connectable to the water supply line at a point downstream of the impeller, and a coupling to the impeller vanes coupling same to the injector to inject the material into the water supply line at the downstream point at a greater pressure than that of the water thereat.
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Abstract
A pump for injecting fertilizer or other material into a pressurized water supply line comprises an impeller including a housing having an inlet connectable to the pressurized water supply line, an outlet vented to the atmosphere, and impeller vanes rotatably mounted within the housing to be rotated by the pressurized water flowing therethrough from its inlet to its outlet. The pump further includes an injector coupled to the impeller to inject the material into the water supply line at a point downstream of the impeller.
33 Citations
20 Claims
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1. A pump for injecting fertilizer or other material into a pressurized water supply line, comprising:
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an impeller connectable in parallel across said pressurized water supply line and including a housing having an inlet connectable to said pressurized water supply line, and outlet vented to the atmosphere so as to be at substantially atmospheric pressure, and impeller vanes rotatably mounted within the housing to be rotated by the pressurized water flowing therethrough from its inlet directly to the atmosphere via its outlet; and an injector including an inlet connectable to a source of the material to be injected, an outlet connectable to the water supply line at a point downstream of the impeller, and a coupling to the impeller vanes coupling same to the injector to inject the material into the water supply line at the downstream point at a greater pressure than that of the water thereat. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A pump for injecting fertilizer or other material into a pressurized water supply line, comprising:
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an impeller connectable in parallel across said pressurized water supply line and including a housing having an inlet connectable to said pressurized water supply line, an outlet vented to the atmosphere so as to be at substantially atmospheric pressure, and impeller vanes rotatably mounted within the housing to be rotated by the pressurized water flowing therethrough from its inlet directly to the atmosphere via its outlet; and a screw feeder including an inlet connectable to a source of the material to be injected, an outlet connectable to said water supply line at a point downstream of said impeller, and means coupling said impeller vanes to said screw feeder to inject said material into said water supply line at said downstream point at a greater pressure than that of the water thereat. - View Dependent Claims (13, 14)
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15. A pump for injecting fertilizer or other material into a pressurized water supply line, comprising:
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a first impeller connectable in parallel across said pressurized water supply line and including a housing having an inlet connectable to said pressurized water supply line, an outlet vented to the atmosphere so as to be at substantially atmospheric pressure, and impeller vanes rotatably mounted within the housing to be rotated by the pressurized water flowing therethrough from its inlet directly to the atmosphere via its outlet; and a second impeller including an inlet connectable to a source of the material to be injected, an outlet connectable to the water supply line at a point downstream of said first impeller, and a coupling to the impeller vanes of said first impeller coupling same to said second impeller to inject the material into the water supply line at said downstream point at a greater pressure than that of the water thereat. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification