Robin M Taylor

US Patent:

20020100819, Aug 1, 2002

Filed:

Mar 12, 2002

Appl. No.:

10/096167

Inventors:

Robin Taylor - Wooster OH, US
Andrew Chapple - Hattersheim, DE

Assignee:

The Ohio Sate University

International Classification:

B05B001/26

US Classification:

239/543000, 239/172000

Abstract:

A multiple nozzle sprayer that includes a fixed or swing bracket assembly configured with a mounting bracket fixedly or adjustably attached by at least one pivot pin to an outwardly projecting angle arm. The mounting bracket is formed with a mounting pad, and the mounting bracket and the angle arm are each formed with at least one nozzle mounting portion. Also included are first and second nozzles mounted to the nozzle mounting portions and configured to project respective spray clouds to intersect. The first nozzle spray cloud is configured with a predetermined droplet size spectra that is greater than that of the second spray nozzle. The first nozzle can be further configured to spray a cloud of a carrier fluid and the second nozzle can be configured to spray an active fluid in a spray cloud that combines with the carrier fluid spray cloud. In another variation, the carrier fluid is water and the active fluid is selected from a group of biologically and/or chemically active substances, and/or mixtures thereof. In a further variation, the carrier fluid is the same as the active fluid, or is a mixture of water and the active fluid. The present invention also contemplates the preceding variations wherein the volumetric flow rate and spray patterns are adjustable through using interchangeable and/or adjustable nozzles. Further, a single nozzle is contemplated that is configured with multiple sprayers. Also, multiple sprayers are contemplated that include two or more nozzles that are each configured to project intersecting spray clouds.

US Patent:

20060216319, Sep 28, 2006

Filed:

Mar 1, 2006

Appl. No.:

11/367007

Inventors:

Andrew Chapple - Lagenfeld, DE
Robin Taylor - Wooster OH, US

International Classification:

A01N 25/00

US Classification:

424405000

Abstract:

The present application provides improved bioactive chemicals having increased bioactive activity and a method for manufacturing such materials. The improved chemical material is provided with an optimum particle size or a small set of optimal particle sizes within the bioactive chemical material in order to obtain increased activity of the active ingredient. The use of an optimum particle size enables a reduction in the amount of active ingredient required in the bioactive chemical for a specified biological effect. The formulation comprises a bioactive material in particulate form in which at least 50% of the particles by volume or mass are in the range 0.5M to 1.5M, where M is the most biologically active particle size class or mode, and the number of particulate size classes is at least 12 and preferably at least 20, such that the particulate distribution can be characterized efficiently and the mode be well defined. In an alternate formulation, at least 90% of the bioactive material particles by volume or mass are in the range 0.5M to 1.5M, and 50% of the particles by volume or mass are in the range 0.75M to 1.25M. Where two or more particle size classes are found to increase efficacy of the active ingredient, several fractions are be mixed together in optimum proportions.