Hand held liquid herbicide applicator
OwnerMitchell E. Maddockinventor
Life of this patent
Estimating the term…
Abstract
A hand-held liquid herbicide applicator for wipingly applying the liquid herbicide on undesired vegetation. The applicator includes an elongated tubular handle having a supply container on its upper end with a special differential pressure operated vent valve in the container. A flow control valve is mounted in the handle for controlling the flow of the liquid herbicide through the handle to an applicator head carried on the bottom of the handle. The applicator head includes an especially configured synthetic sponge which is formed with a porous relatively dense peripheral skin so that the liquid herbicide received from the handle will evenly saturate the entire sponge to prevent uncontrollable liquid flow in one or more localized parts of the sponge.
Claims14
A hand-held liquid herbicide applicator for wipingly applying the liquid herbicide on undesired vegetation growing at ground level comprising:
- (a) an elongated tubular handle for holding at a forwardly and downwardly extending angle which defines an application position;
- (b) a liquid herbicide container means demountably mounted on the upper end of said tubular handle for supplying the liquid herbicide to the bore thereof;
- (c) vent valve means in said container means for admitting air thereto when the liquid herbicide flows therefrom into the bore of said tubular handle;
- (d) flow control valve means mounted in said tubular handle for controlling the flow of the liquid herbicide through the bore thereof;
- and
- (e) an elongated applicator head fixedly mounted on the lower end of said tubular handle and extending angularly therefrom in substantially horizontally plane when said tubular handle is held in its application position, said applicator head including,
- I. an elongated tubular dispenser conduit extending angularly from said tubular handle for receiving the liquid herbicide therefrom, said tubular dispenser conduit having its extending end closed and having a plurality of dispensing apertures formed incrementally along its bottom,
- II. a synthetic sponge affixed to said tubular dispenser conduit for internally absorbingly receiving the liquid herbicide dispensed thereby, said sponge having a porous relatively dense peripheral skin for retarding initial surface wetting to insure prior even internal saturation thereof.
Dependencies are inferred from the claim text.