Applicators of granular and powder material

Claim 2

An applicator movable over the ground for applying powder and granular materials onto such ground and onto crops growing on said ground including, a gravity hopper for holding said materials, a metering device receiving materials from said hopper, a depending feed duct from said metering device and extending into an airflow conduit, said depending duct being of circular cross section but being flattened to oval section where it extends into said airflow conduit so as to extend diametrically across said airflow conduit, the end of such flattened portion being cut at an angle to the axis of the conduit to provide a downstream facing discharge, a blower for delivering air to said airflow conduit, means for driving said blower, at least one discharge nozzle, a flexible hose connecting said airflow conduit to said nozzle, and means for driving said metering device at a speed related to movement of the applicator over the ground.

Claim 3

An applicator movable over the ground for applying powder and granular materials on such ground and onto crops growing on said ground including, a gravity hopper for holding said materials, a metering device receiving material from said hopper, a depending feed duct from said metering device and extending into an airflow conduit, a blower for delivering air to said airflow conduit, means for driving said blower, at least one discharge nozzle, a flexible hose connecting said airflow conduit to said nozzle, and means for driving said metering device at a speed related to movement of the applicator over the ground, said metering device having two outlets each delivering to a depending feed duct, said blower having two outputs each feeding to one of two airflow conduits, and two flexible hoses connecting said airflow conduits to respective ones of said nozzles.

Claim 4

An applicator movable over the ground for applying powder and granular materials on such ground and onto crops growing on said ground including, a gravity hopper for holding said materials, a metering device receiving material from said hopper, a depending feed duct from said metering device and extending into an airflow conduit, a blower for delivering air to said airflow conduit, means for driving said blower, at least one discharge nozzle, a flexible hose connecting said airflow conduit to said nozzle, and means for driving said metering device at a speed related to movement of the applicator over the ground, said metering device having two outlets each delivering to a depending feed duct, said blower having two outputs each feeding to one of two airflow conduits, and two flexible hoses connecting said airflow conduits to respective ones of said nozzles.

Claim 5

An applicator movable over the ground for applying powder and granular materials on such ground and onto crops growing on said ground including, a gravity hopper for holding said materials, a metering device receiving material from said hopper, a depending feed duct from said metering device and extending into an airflow conduit, a blower for delivering air to said airflow conduit, means for driving said blower, at least one discharge nozzle, a flexible hose connecting said airflow conduit to said nozzle, and means for driving said metering device at a speed related to movement of the applicator over the ground, said last-named means comprising a land wheel carried by a pivoted arm, a pulley rotatable by said land wheel, a second pulley on a driving shaft of said metering device, and an endless belt for rotating said pulleys.

Claim 6

An applicator movable over the ground for applying powder and granular materials on such ground and onto crops growing on said ground including, a gravity hopper for holding said materials, a metering device receiving material from said hopper, a depending feed duct from said metering device and extending into an airflow conduit, a blower for delivering air to said airflow conduit, means for driving said blower, at least one discharge nozzle, a flexible hose connecting said airflow conduit to said nozzle, and means for driving said metering device at a speed related to movement of the applicator over the ground, said last-named means comprising a land wheel carried by a pivoted arm, a pulley rotatable by said land wheel, a second pulley on a driving shaft of said metering device, and an endless belt for rotating said pulleys.

Claim 7

An applicator movable over the ground for applying powder and granular materials on such ground and onto crops growing on said ground including, a plurality of hoppers carried by a framework in side-by-side relationship, a Plurality of metering devices each associated with a respective one of said hoppers for receiving materials from the respective hopper, a plurality of depending feed ducts each associated with a respective one of said metering devices and each extending into a respective airflow conduit, a plurality of blowers each delivering air to a respective one of said airflow conduits, a discharge nozzle associated with each airflow conduit, a flexible hose connecting each said airflow conduit to its respective nozzle, a common shaft for driving the plurality of metering devices of said hoppers at a speed related to movement of the applicator over the ground, a common power source for driving said plurality of blowers, said plurality of discharge nozzles being spaced substantially equal distances apart, a boom, and means for pivotally connecting said boom to said framework, at least some of said nozzles being mounted on said boom.

Claim 8

An applicator movable over the ground for applying powder and granular materials on such ground and onto crops growing on said ground including, a plurality of hoppers carried by a framework in side-by-side relationship, a Plurality of metering devices each associated with a respective one of said hoppers for receiving materials from the respective hopper, a plurality of depending feed ducts each associated with a respective one of said metering devices and each extending into a respective airflow conduit, a plurality of blowers each delivering air to a respective one of said airflow conduits, a discharge nozzle associated with each airflow conduit, a flexible hose connecting each said airflow conduit to its respective nozzle, a common shaft for driving the plurality of metering devices of said hoppers at a speed related to movement of the applicator over the ground, a common power source for driving said plurality of blowers, said plurality of discharge nozzles being spaced substantially equal distances apart, a boom, and means for pivotally connecting said boom to said framework, at least some of said nozzles being mounted on said boom.