Patents by Inventor John H. Collins

John H. Collins has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5164095
    Abstract: A water soluble ethylene dichloride ammonia polymer having a molecular weight of from 500 to 10,000 which contains from 5 to 50 mole % of dithiocarbamate salt groups. Also, disclosed is the use of these polymers in removing heavy metals from water.
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: November 17, 1992
    Assignee: Nalco Chemical Company
    Inventors: John W. Sparapany, John H. Collins
  • Patent number: 4749382
    Abstract: An oil-dispersible, water-based fuel additive is disclosed. The fuel additive comprises a metal salt solution, selected from the group comprising, an alkaline-earth metal salt from the II-A group of the periodic table of the elements, a transition-metal salt, a cationic surfactant, a solubilizing agent, and a stabilizing agent.
    Type: Grant
    Filed: January 23, 1984
    Date of Patent: June 7, 1988
    Assignee: Nalco Chemical Company
    Inventors: John H. Collins, Marcos Y. Corpuz, George T. Kekish, Larry P. Koskan
  • Patent number: 4567122
    Abstract: An irreversible phototropic material consists of a plasticized matrix in which is suspended a phototropic transition metal salt and an additive which inhibits the production of haze in the phototropic material. Generally the additive is a substance which inhibits the reduction of the transition metal in the transition metal salt from a higher to a lower oxidation level. Suitable substances include chelating agents such as oxalic acid, ethylenediamine and EDTA, and oxidizing agents, such as chromium trioxide. The transition metal salt is preferably copper (II) chloride or a mixture of copper (II) chloride and bromide, while the matrix is preferably polyvinyl chloride or polyvinyl chloride/polyvinylidene chloride copolymer.These phototropic materials may be used in protective devices, such as goggles and windows, to protect objects or subjects against intense radiation.
    Type: Grant
    Filed: January 6, 1983
    Date of Patent: January 28, 1986
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Peter J. Baldry, John H. Collins, Daniel J. Morantz, Terence K. W. Overton, David W. Wright
  • Patent number: 4412844
    Abstract: Stable, oil dispersible, aqueous dispersions of magnesium hydroxide useful as deposit control additives for residual fuels can be prepared. These slurries, of magnesium hydroxide contain generally:(A) 20-70% Mg(OH).sub.2 having a particle size of 50 to 1.0 micron;(B) 79-29% water;(C) 1.0-8.0% of a water-in-oil emulsifying agent having an HLB value of from 2 to 11;(D) 0.1-6% of a water soluble water-in-oil emulsifying agent having an HLB value of from 10 to 40;Said dispersion having a Brookfield Viscosity of from 100-5000 cps. (#3 spindle at 12 rpm, 75.degree. F.
    Type: Grant
    Filed: June 25, 1981
    Date of Patent: November 1, 1983
    Assignee: Nalco Chemical Company
    Inventors: John H. Collins, Mei-Jan L. Lin, George T. Kekish
  • Patent number: 4354872
    Abstract: A highly stable metal oxide oil slurry useful in reducing slag, facilitating removal of deposits from boiler tubes, and reducing corrosion on the heating surfaces of boilers has been developed. Such a slurry consists essentially of about 50% by weight magnesium oxide or the entity of magnesium oxide and alumina oxide, together with an oil-soluble emulsifier such as alkanolamide and preferably ethanolamide, or an alkanol with a carbon chain greater than a C.sub.3 alcohol, an oil-soluble dispersant such as a C.sub.12 -C.sub.22 entity selected from an unsaturated or saturated fatty acid; e.g., oleic acid. Also, as a constituent is an anionic surfactant such as magnesium lauryl sulfate in an oil base such as No. 2 fuel oil. The alkanolamide is fashioned from heating alkanolamines and fatty acids either in a 1:1 ratio or 2:1 ratio. The reactant amino alcohol is in the range C.sub.10 -C.sub.24. The alcohol itself is greater than C.sub.3 and up to C.sub.16, with a preferred range C.sub.12 -C.sub.16.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: October 19, 1982
    Assignee: Nalco Chemical Company
    Inventors: George T. Kekish, Mei-Jan L. Lin, John H. Collins