Rolling herbicide applicator with an adjustable shield

• US 20090294555A1
• Filed: 05/27/2008
• Published: 12/03/2009
• Est. Priority Date: 05/27/2008
• Status: Active Grant

• Current Assignee: Elizabeth Gray Crosswell
• Original Assignee: Elizabeth Gray Crosswell
• Inventors: Crosswell, Elizabeth Gray
• Granted Patent: US 7,654,470 B2
• Time in Patent Office: Days
• US Class Current: 239/288
• CPC Class Codes: A01M 21/043 by chemicals
• CPC Class Codes: B05B 12/22 movable relative to the spray area
• CPC Class Codes: B05B 12/34 movable relative to the spray area

Abstract

A rolling liquid herbicide applicator with an adjustable shield is attached to a hollow pole having an adjustable width protective shield mounted to one end weighted, textured wheels for rolling over most terrains are attached to the adjustable width protective shield. On the opposite end of the hollow pole handle is a trigger. When the trigger is activated, an internal trigger stick is moved down through the hollow pole, thereby causing a “C” piece to move upward. This upward movement pushes on a hard flat disk. The movement of the hard flat disk causes pliable cap center to move. The gravity flow of liquid herbicide from a liquid herbicide container causes the liquid herbicide to move through a tube and nozzle assembly. The adjustable width protective shield over the nozzle prevents overspray and accidental contact of the liquid herbicide on healthy desired vegetation.

Claims

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24. A rolling herbicide applicator with an adjustable shield comprising:

a hollow pole having a handle connected on one end and an adjustable width protective shield connected on the other end;

a container having liquid herbicide therein, said container being affixed to the side of said hollow pole;

a pressure activated liquid dispensing cap assembly constructed and arranged for interfitment within the top of said container;

a tube and nozzle assembly for guiding the flow of liquid herbicide from said container and causing it to form into droplets;

a spray activation assembly including a trigger, a trigger stick and a C-shaped piece hingedly connected to the bottom of said trigger stick wherein said trigger is positioned on said handle, said trigger stick passes through said hollow pole and said C-shaped piece surrounds said pressure activated liquid dispensing cap assembly;

an adjustable width protective shield being placed over said nozzle;

a wheel affixed at either end of said adjustable width protective shield;

whereby the movement of said trigger will cause said trigger stick to move and said C-shaped piece to place pressure on said pressure activated liquid dispensing cap assembly so that liquid herbicide is caused to flow through said tube and nozzle assembly and be dispensed as droplets under said adjustable width protective shield.

25. A system for dispensing liquid herbicide on undesired vegetation without producing overspray on to healthy desired vegetation, said system comprising:

a hollow pole having a handle connected on one end and an adjustable width shield connected on the other end;

a liquid herbicide container, said liquid herbicide container being affixed to the side of said hollow pole;

a pressure activated liquid dispensing cap assembly constructed and arranged for interfitment within the top of said liquid herbicide container;

a tube and nozzle assembly for guiding the flow of liquid herbicide from said liquid herbicide container and causing it to form into droplets;

a spray activation assembly including a trigger, a trigger stick and a C-shaped piece hingedly connected to the bottom of said trigger stick wherein said trigger is positioned on said handle, said trigger stick passes through said hollow pole and said C-shaped piece surrounds said pressure activated liquid dispensing cap assembly;

an adjustable width protective shield being placed over said nozzle;

a wheel affixed at either end of said adjustable width protective shield;

whereby the application of force on said trigger will move said trigger stick to cause said C-shaped piece to place pressure on said pressure activated liquid dispensing cap assembly so that liquid herbicide is caused to flow through said tube and nozzle assembly and be dispensed as droplets under said adjustable width protective shield.

26. A system for controlling the placement and size of liquid herbicide spray on undesired vegetation, said system comprising:

a rolling liquid herbicide dispenser including;

a handle mounted on a hollow pole;

a liquid herbicide container mounted to said hollow pole;

a liquid herbicide spray activation mechanism which causes a spray of liquid herbicide to be dispensed from said liquid herbicide container when a trigger within said handle is depressed;

an adjustable width protective shield affixed to said hollow pole, said adjustable width protective shield being constructed and arranged for containment of said liquid herbicide spray;

whereby an operator may place liquid herbicide spray over undesired vegetation and prevent the liquid herbicide from being sprayed on anything other than the undesired vegetation.