John G Clapp

US Patent:

7494525, Feb 24, 2009

Filed:

Feb 22, 2005

Appl. No.:

11/061508

Inventors:

Michael Massoud Hojjatie - Tucson AZ, US
John Garland Clapp - Greensboro NC, US
Thomas David Fairweather - Dunbee OR, US
Constance Lynn Frank Lockhart - Tucson AZ, US

Assignee:

Tessenderlo Kerley, Inc. - Phoenix AZ

International Classification:

C05C 9/00

US Classification:

71 28, 71 641

Abstract:

Use of urease-inhibiting amounts of calcium polysulfide, potassium polysulfide, calcium thiosulfate, magnesium thiosulfate, and blends thereof, in combination with urea-containing fertilizer to significantly reduce potential losses of nitrogen due to ammonia volatilization.

US Patent:

50191497, May 28, 1991

Filed:

Sep 23, 1985

Appl. No.:

6/778865

Inventors:

Edwin F. Hawkins - Baton Rouge LA
John G. Clapp - Greensboro NC
James E. Sansing - Ashboro NC

International Classification:

C05C 900
C05C 1300
C05G 300

US Classification:

71 29

Abstract:

A foliar fertilizer specifically for iron deficient plants which contains a complex of various ingredients such as citric acid admixed/reacted with ferrous sulfate previously converted at-least predominantly to ferric sulfate by oxidation at about 90 degrees or more centigrade or a neutralizing amount of ammonium ion, to a pH ranging from about pH 6 to about pH 7, the ferrous sulfate being typically produced by reaction of iron metal with sulfuric acid, excluding the presence of any phosphate salt, neutralized with NH. sub. 4 OH, then admixed with urea and/or ammonium nitrate, the total mixture critically having a nitrogen-to-iron ratio of not less than (i. e. , at least) 3/1, preferably within a range of about 4/1 to about 5/1, in aqueous solution, and the method including using the above-noted fertilizer complex as a source, diluting with water such that the source as a percentage ranges from about 5% to about 40%, followed by foliar spraying onto plant foliage, up to an application of about 5 lbs. of iron per acre, the chemical composition including typically about 60% citrate by weight relative to iron, total nitrogen being typically about 10-30 wt. % of the chemical composition.

US Patent:

45833192, Apr 22, 1986

Filed:

Jun 27, 1985

Appl. No.:

6/749430

Inventors:

Robert L. Wolff - Carbondale IL
Dennis G. Watson - East Lansing MI
John G. Clapp - Greensboro NC

Assignee:

Arcadian Corporation - Parsippany NJ

International Classification:

A01C 1504
B05B 906

US Classification:

47 17

Abstract:

A method and apparatus for foliar spraying liquid composition such as pesticide, aqueous fertilizer solution, and/or herbicide, onto foliage of vegetation. In a preferred embodiment, while spraying a spray stream of liquid composition at 10 to 75 pounds per square inch pressure from an orifice having a cross-sectional area of from about 0. 0000948 to about 0. 0323000 square inches to strike vegetation foliage within from about 5 to about 15 inches, with a plurality of gas-directing vents spaced-apart on opposite sides of the orifice but not circumscribing the orifice, the gas-directing vents each being directed to impinge air upon the spray stream within the 5 to 15 inches, the gas-directing vents being angled toward the spray stream at angles from about 0 to about 50 degrees relative to a second axis extending from the gas-directing vent that is parallel to a first axis following the spray stream, with baffles on opposite sides of the gas-directing vent for each thereof, the baffles being angled divergingly outwardly from the axis in which directed at angle ranging from 0 to about 20 degrees, a plurality of spray orifices each with its plurality of gas-directing vents, are mounted and spaced-apart from one another along an open boom and adapted to spray laterally and/or backwardly, while a support structure mounting the boom(s) moves the spray vents substantially horizontally forwardly by way of a vehicle advancing at a speed of from about 1 to 10 miles per hour.

US Patent:

47768797, Oct 11, 1988

Filed:

May 7, 1987

Appl. No.:

7/046647

Inventors:

Edwin F. Hawkins - Baton Rouge LA
John G. Clapp - Greensboro NC

Assignee:

Triazone Corporation - Parsippany NJ

International Classification:

A01N 4364
C07D25108

US Classification:

71 93

Abstract:

In a preferred embodiment, a high-yield method producing novel water insoluble triazone compositions with a typical analysis, prior to separation of the insoluble triazone crystals, has components in amounts as follow, percentages being based on the total weight of the reaction product; unreacted urea at about 10%, total percentage of nitrogen from urea at about 4. 7, with maximum total nitrogen at about 30 percent, with the yield of triazone at about 75 percent, produced by a novel method in which urea or substituted urea and pH adjusted to and maintained at about pH 9. 0 by addition preferably of potassium hydroxide 45% aqueous solution, while mixing thoroughly and heating for about one hour at a temperature of about 85 degrees Centigrade, however keeping below the boiling point of the aldehyde, utilizing water or other solvent such as alcohol or other equivalent to maintain fluid conditions. The amine is thereafter slowly added while the maintaining temperature below about 65 degrees during the amine addition, and while continuing to maintain the pH at about 9. Thereafter, the mixture is heated to and maintained at about 85 degrees Centigrade for about one hour, and thereafter cooled to about 30 degrees Centigrade, followed by filtering-off triazone crystals, washing the precipitate crystals with reagent alcohol or water, and drying the crystals.

US Patent:

40380645, Jul 26, 1977

Filed:

Aug 7, 1975

Appl. No.:

5/602714

Inventors:

John G. Clapp - Greensboro NC
Donald Lee Johnson - Omaha NB
James Earl Sansing - Baton Rouge LA

Assignee:

Allied Chemical Corporation - Morristown NJ

International Classification:

C05B 1500

US Classification:

71 29

Abstract:

Urea-polyphosphate-potassium solution is applied to foliage of field crops such as soybeans, between flowering and seed set to increase yields.