Patents Represented by Attorney David G. McConnell

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  • Biodegradable starch-based blown films
    Patent number: 4337181
    Abstract: Film-forming formulations comprising starch, ethylene acrylic acid copolymer, and optionally polyethylene, can be blown into films upon neutralization of a portion of the copolymer acid functionality. The resultant biodegradable films have potential application as agricultural mulch, garbage bags, and various types of packaging.
    Type: Grant
    Filed: January 17, 1980
    Date of Patent: June 29, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Felix H. Otey, Richard P. Westhoff
  • Erythro-9,10-Dihydroxyoctadecan-1-ol acetate a boll weevil anti-feedant
    Patent number: 4337271
    Abstract: Erythro-9,10-Dihydroxyoctadecan-1-ol acetate, a compound isolated in low yield from tung oil, was synthesized in high yield and found to have excellent potential as a boll weevil feeding deterrent when applied to cotton plants.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: June 29, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Martin Jacobson
  • Mushroom-growing medium
    Patent number: 4333757
    Abstract: A cellulosic medium for growing mushrooms is disclosed. A liquid mixture containing sources of soluble carbon and nitrogen is fermented and mixed with cellulosic material. The so-treated cellulosic material is held at a temperature and for a time sufficient to allow substantial reduction of organisms damaging to mushroom culture. The cellulosic material then is cooled to a temperature suitable for spawning.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: June 8, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Ralph H. Kurtzman, Jr.
  • Field control for wind-driven generators
    Patent number: 4331881
    Abstract: The field current of a wind-driven generator is automatically controlled in response to a first signal representing the wind speed and a second signal representing the impeller tip speed so as to continuously load the wind machine to the extent necessary for maintaining a constant tip speed/wind speed ratio, thereby optimizing the performance of the machine.
    Type: Grant
    Filed: October 3, 1980
    Date of Patent: May 25, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Leo H. Soderholm, James F. Andrew
  • Dry chemical process for grafting acrylic and methyl acrylic ester and amide monomers onto starch-containing materials
    Patent number: 4330443
    Abstract: Acrylic monomers are grafted onto starch-containing materials by a novel dry state process in which small amounts of peroxides chemically initiate the free radical reaction. Since the process is dry and the resultant products contain no contaminants, it is unnecessary to isolate, wash, and dry them before use. The products are useful in the paper and mineral separation industries.
    Type: Grant
    Filed: June 18, 1980
    Date of Patent: May 18, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: John C. Rankin
  • Process for preservation of stored wood chips
    Patent number: 4329368
    Abstract: A process which inhibits the loss of wood substance, tall oil and chip brightness in wood chips during storage. The process involves treating wood chips with a dilute aqueous solution of formaldehyde and a phenol. This treatment effectively prevents the evolution of heat from the chips and microbial growth and thus limits chip deterioration and brightness loss while preserving tall oil. The process is also effective in preserving other moist plant-derived raw materials.
    Type: Grant
    Filed: June 8, 1979
    Date of Patent: May 11, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Edward L. Springer
  • Turkey semen extender
    Patent number: 4329337
    Abstract: A medium for preserving and extending the viable useful life of poultry semen, in vitro, is provided. Turkey semen is preserved without loss of fertility for up to 18 hours in the medium.
    Type: Grant
    Filed: July 29, 1981
    Date of Patent: May 11, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Thomas J. Sexton
  • Process for encapsulating additives in resealed erythrocytes for disseminating chemicals via the circulatory system
    Patent number: 4327710
    Abstract: An apparatus and a process for encapsulating additives in resealed erythrocytes from the blood of certain mammals. The invention provides a means of preparing material in substantial quantities, to be employed as vaccine which, when reinjected into these mammals, provides a systemic protection against blood-sucking insects or other parasites.
    Type: Grant
    Filed: June 18, 1980
    Date of Patent: May 4, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: John R. DeLoach, Robert L. Harris, Garret M. Ihler, Richard T. Mayer
  • Method of increasing the yield of hydrocarbons from plants
    Patent number: 4322242
    Abstract: The accumulation of hydrocarbons in plants which produce the same is enhanced by applying to the plants certain (3,4,5-substituted-phenoxy)-trialkylamines.
    Type: Grant
    Filed: September 25, 1979
    Date of Patent: March 30, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Henry Yokoyama, Ernest P. Hayman, Wan-Jean Hsu, Stephen M. Poling
  • Vacuum-operated produce handling systems
    Patent number: 4320995
    Abstract: A novel flume hopper is employed in combination with a vacuum-operated hydraulic conveyor in a field or storage handling system for efficiently transferring produce to a holding tank without inflicting damage.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: March 23, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Bernard R. Tennes, Richard J. Wolthuis, Clyde L. Burton
  • Conversion of cyclopropenoids to conjugated diene and saturated derivatives
    Patent number: 4321210
    Abstract: Cyclopropenoid compounds such as malvalic and sterculic fatty acids found in sterculia oil are rearranged substantially quantitatively to conjugated dienes when heated in the presence of a rhodium catalyst. The dienes can thereafter be reduced to the corresponding branched chain derivatives by means of hydrogenation with the same catalyst. Both the diene and branched derivatives have application in the production of plastics, coatings, lubricants, soaps, cosmetics, and other commercial products.
    Type: Grant
    Filed: May 15, 1981
    Date of Patent: March 23, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Yoshinori Kai, Everett H. Pryde
  • Apparatus for removing corn from cob
    Patent number: 4318415
    Abstract: An apparatus for removing intact kernels of corn from the cob is described. The apparatus of the invention includes a frame with friction means attached thereto for removing whole, intact kernels of corn from the cob. Also attached to the frame are means for driving the friction means and means for maintaining the friction coefficient of the friction means.In the apparatus of the invention an ear of corn is contacted with the driven friction means so that the frictional force pushes the kernels at or near the natural abscission layer to detach the kernels intact. The means for maintaining the friction coefficient of the friction means maintains the friction coefficient at a level sufficient to detach intact kernels and preferably at a level which maximizes the efficiency of kernel detachment.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: March 9, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: George H. Robertson, Daniel F. Farkas
  • Laboratory pesticide spray chamber
    Patent number: 4318363
    Abstract: An enclosed spray chamber for the application of toxic compounds in micro liquid volumes as a function of time using air as a carrier. The spray chamber is cylindrical and vertically mounted about its longitudinal axis. A spray nozzle is mounted in the top of the spray chamber which uses a syringe and needle reservoir system as an accurate means of controlling the amount of solute dissipated. An air pump provides a stream of air that passes in front of the spray nozzle which pulls the spray solute and solvent out of the syringe by vacuum. An exhaust fan and exhaust outlet are provided to safely dispose of the spray solute and solvent outside of the working area of the chamber. A timer system operates the exhaust fan and air pump so that spray droplet fallout and impingement time can be varied and calibrated.
    Type: Grant
    Filed: May 9, 1979
    Date of Patent: March 9, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Emanuel E. Moellman, Jacqueline L. Robertson
  • Method of controlling the European corn borer with trewiasine
    Patent number: 4315929
    Abstract: A novel maytansinoid compound discovered in the seed tissue of Trewia nudiflora has been found to be effective in controlling a common insect pest, the European corn borer. This compound is represented by the formula: ##STR1## and is characterized by a distinguishing methoxy group on the C-15 carbon.
    Type: Grant
    Filed: January 27, 1981
    Date of Patent: February 16, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Bernard Freedman, Richard G. Powell, Cecil R. Smith, Jr.
  • Dietary supplementation with essential metal picolinates
    Patent number: 4315927
    Abstract: The levels of essential metals in the mammalian system can be precisely controlled by administering these metals in the form of exogenously synthesized coordination complexes of picolinic acid. The complexes are characterized by the following structural formula: ##STR1## wherein M represents the metallic cation and n is equal to the cation's valence.
    Type: Grant
    Filed: August 8, 1980
    Date of Patent: February 16, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Gary W. Evans
  • Pesticide spray monitoring system for spray vehicles
    Patent number: 4315317
    Abstract: A measuring, computing and recording system for real-time monitoring of spray application parameters for pesticides and the like, dispensed from aircraft. The system includes means for measuring, computing and recording (1) total liquid volume, (2) liquid pressure, (3) liquid flow rate, (4) total spray passes, and (5) total spray time. The system also includes means for measuring and recording relative humidity, air temperature, and dispensed liquid temperature. A spray pressure exceeding a predetermined pressure set point is required to initiate and maintain the flow rate computing and associated recording operations of thesystem. The measuring and recording of relative humidity, air temperature and dispensed liquid temperature may be independently controlled if so desired.
    Type: Grant
    Filed: December 4, 1979
    Date of Patent: February 9, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Richard D. Orchard, Kurt L. Barbee, Bradford S. Whiting, William C. Heussy, deceased, by Loyal L. Pavenstedt, executrix
  • Chemotherapeutically active maytansinoids from Trewia nudiflora
    Patent number: 4313946
    Abstract: A novel group of maytansinoid compounds has been discovered in the seed tissue of Trewia nudiflora. They are represented by the general formula ##STR1## and are all characterized by a distinguishing methoxy group on the C-15 carbon. These isolates have proven to be effective in causing the remission of one or more types of malignancies.
    Type: Grant
    Filed: January 27, 1981
    Date of Patent: February 2, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Richard G. Powell, Cecil R. Smith, Jr.
  • Control of parasitic ticks
    Patent number: 4310547
    Abstract: Certain amines are highly effective in controlling parasitic ticks.
    Type: Grant
    Filed: March 26, 1980
    Date of Patent: January 12, 1982
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: LaWanda M. Hunt, Malcolm J. Thompson, William E. Robbins
  • Partial argentation resin chromatography for separation of polyunsaturated fatty esters
    Patent number: 4305882
    Abstract: Mixtures containing polyunsaturated fatty esters are fractionated by partial argentation resin chromatography, in which the mixture is eluted through a column packed with a partially silvered sulfonic acid ion exchange resin.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: December 15, 1981
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Edward A. Emken, Richard O. Adlof, Henry Rakoff
  • Wrinkle-resistant and durable-press cotton-containing fabric by treatment with acrylamide and glyoxal
    Patent number: 4304564
    Abstract: Cotton, or other fabric containing cellulose, is treated with acrylamide and a chemical initiator that promotes reaction of acrylamide with cellulose. The fabric, with bound acrylamide, is then treated with glyoxal and an acidic, metal salt catalyst to produce a fabric containing crosslinked cellulose. Thus, the fabric is given wrinkle resistance and durable-press properties by the treatment without using formaldehyde, free or combined, that could be released during treatment or from the treated fabric.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: December 8, 1981
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: John G. Frick, Jr., Robert J. Harper, Jr.