Patents by Inventor Kimberly L. P. Hei

Kimberly L. P. Hei 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).

  • Lubricant composition having a fatty acid, a polyalkylene glycol polymer, and an anionic surfactant, wherein the lubricant is for a conveyor system
    Patent number: 7125827
    Abstract: A method of lubricating conveyor tracks or belts is herein described wherein the lubricant composition contains a polyalkylene glycol polymer, a fatty acid, and an anionic surfactant; also described is a lubricant composition with reduced sensitivity to low pHs. The composition may also comprise additional functional ingredients and be composed of ingredients that can be safely administered to humans and mammals.
    Type: Grant
    Filed: August 13, 2003
    Date of Patent: October 24, 2006
    Assignee: Ecolab Inc.
    Inventors: Minyu Li, Kimberly L. P. Hei, Amy McBroom
  • Conveyor lubricant, passivation of a thermoplastic container to stress cracking, and thermoplastics stress crack inhibitor
    Patent number: 6806240
    Abstract: Thermally formed thermoplastic articles can be protected from stress cracking in the presence of stress cracking promoting compounds by forming a shaped article comprising a thermoplastic and a liquid hydrocarbon oil composition. We have found that the liquid hydrocarbon oil composition prevents the stress cracking promoting materials from interacting with the polymeric structure of the stressed container to prevent or inhibit stress cracking in such materials. The methods and compositions of the invention are particularly useful in preventing stress cracking in polyethylene terephthalate beverage containers during bottling operations during which the bottle in contacted with aqueous and non-aqueous materials such as cleaners and lubricants that can interact with the polyester to cause stress cracking particularly in the container base.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: October 19, 2004
    Assignee: Ecolab Inc.
    Inventors: Kimberly L. P. Hei, Minyu Li, Keith Darrell Lokkesmoe, Joy G. Herdt, Guang-Jong Jason Wei, Michael E. Besse
  • Lubricant composition with reduced sensitivity to low pH for conveyor system
    Publication number: 20040053793
    Abstract: A method of lubricating conveyor tracks or belts is herein described wherein the lubricant composition contains a polyalkylene glycol polymer, a fatty acid, and an anionic surfactant; also described is a lubricant composition with reduced sensitivity to low pHs. The composition may also comprise additional functional ingredients and be composed of ingredients that can be safely administered to humans and mammals.
    Type: Application
    Filed: August 13, 2003
    Publication date: March 18, 2004
    Inventors: Minyu Li, Kimberly L.P. Hei, Amy McBroom