Portable particulate material spreader
AssigneeS. C. Johnson & Son, Inc.
InventorsRudolph M. Gunzel, Jr., Scott W. Demarest, David J. Edwards, Donald J. Shanklin
Life of this patent
Estimating the term…
Abstract
An improved portable, self-contained apparatus for spreading particulate material that can, by use of alternate flow improvement and control mechanisms, be used to dispense either dusts (such as insecticides) or granular materials such as fertilizer. The apparatus has a detachable container portion and a dispensing portion which includes, in a chamber, a rotary vane turned by a battery-powered motor, a recurved channel leading from the blower chamber to an outlet nozzle, and a triggering and activation assembly which sequentially activates first the motor and the rotary vane and then the flow improvement and control mechanism.
Claims13
A portable apparatus for spreading particulate material adapted for use with particulate materials having different particle sizes and different flow behaviors having, in combination, a dispensing portion, the dispensing portion including a housing having therein a chamber with a rotary vane, the chamber having an inlet port to admit the particulate material to the chamber, an outlet nozzle from which the particulate material is ejected by the rotary vane, and a channel leading from the portion of the chamber containing the rotary vane to the output nozzle, energy supply means for powering said rotary vane operatively connected to the rotary vane, and detachably connected thereto, a container portion for holding the particulate material, and a flow improvement and control means for controllably transferring the particulate material from the container to the chamber, the controllable transfer being accomplished by a sequentially operational activation means for first activating the energy supply means, thereby activating the rotary vane, and then activating the flow improvement and control means, the adaptation of the apparatus for use with particulate materials having different particle sizes and flow behaviors being accomplished by having the dispenser portion designed so that it can be detachably connected to either a first or a second embodiment of the container portion, the first embodiment being designed to transfer powdered particulate materials into the dispensing portion and the second embodiment being designed to transfer granular particulate materials into the dispensing portion.
A portable apparatus for spreading particulate material adapted for use with particulate materials having different particle sizes and different flow behaviors comprising, in combination:
- a dispensing portion, the dispensing portion including a housing having therein a chamber with a rotary vane, the chamber having an inlet port to admit the particulate material to the chamber, an outlet nozzle form which the particulate material is ejected by the rotary vane, and a channel leading from the portion of the chamber containing the rotary vane to the output nozzle, energy supply means for powering said rotary vane operatively connected to the rotary vane, and, detachably connected thereto,
- a container portion for holding the particulate material, the container portion having a neck with a neck opening, the neck being designed to removably interconnect with inlet port of the chamber of the dispensing portion, is a flow improvement and controls means, for controllably transferring the particulate material form the container to the chamber, the controllable transfer being accomplished by a sequentially operational activation means for first activating an energy supply means, thereby activating the rotary vane, and then activating the flow improvement and control means, the flow improvement and control means comprising a ramp and gate valve mechanism designed when the container portion and the dispensing portion are interconnected, to be activated by the interaction of a first set of gear teeth and a second set of gear teeth on the gate valve and on a slide portion of the trigger mechanism which allow a ramp portion hole and a gate valve hole to be aligned and thus allow particulate material to pass form the container position into the chamber.
Dependencies are inferred from the claim text.