Rolling herbicide applicator with an adjustable shield

• US 8,083,155 B2
• Filed: 11/03/2009
• Issued: 12/27/2011
• Est. Priority Date: 05/27/2008
• Status: Expired due to Fees

• Current Assignee: Elizabeth Gray Crosswell
• Original Assignee: Elizabeth Gray Crosswell
• Inventors: Crosswell, Elizabeth Gray
• Primary Examiner(s): Ganey, Steven J
• Application Number:
  US12/587,381
• Publication Number:
  US 20100044456A1
• Time in Patent Office: 784 Days
• Field of Search: 239/146, 239/150, 239288-2885, 239/302, 239/303, 239/379, 239/505, 239/507, 239/513, 239/521, 239/566, 239/578, 239/754, 239/1, 222/505, 222/608, 47/17, 47/485
• US Class Current: 239/1
• 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” shaped 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

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

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 stream of liquid herbicide to be dispensed from said liquid herbicide container through a tube when a trigger within said handle is depressed;

a nozzle assembly affixed to the end of said tube, said nozzle assembly causing said liquid herbicide to form into droplets;

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 dispensed from said nozzle assembly;

said adjustable width protective shield including two segments, one segment slidably nested within the other segment;

a pair of wheels affixed on either end of said adjustable width protective shield 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.

2. A method for controlling the placement and size of a liquid herbicide spray on undesired vegetation, said method comprising the steps of:

creating a walk-behind liquid herbicide spray dispenser including;

a handle mounted on a hollow pole;

a refillable liquid herbicide storage container mounted to said hollow pole;

a controlled volume liquid dispensing system attached to said refillable liquid herbicide storage container, said controlled volume liquid dispensing system being activated by placing pressure on a trigger;

a tube for conducting said controlled of liquid herbicide away from said refillable liquid refillable liquid herbicide storage container;

a nozzle assembly affixed to the end of said tube;

affixing an adjustable protective shield to said hollow pole to contain the spray released from said nozzle assembly;

affixing a wheel to either end of said adjustable protective shield wherein said adjustable protective shield includes two slidable segments, one segment nesting within the other segment when a width of said adjustable protective shield is changed.