Patents by Inventor Denise A. Cleghorn

Denise A. Cleghorn 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).

  • Process for electron sterilization of a container
    Patent number: 7145155
    Abstract: Minimum electron energy is used for the sterilization of preformed containers in order to minimize the machinery size, cost and radiation shielding required for in-line use. The electron energy required is reduced by the use of one-sided (unilateral) irradiation wherein the dose delivered by the primary radiation to thicker portions of the containers is supplemented by the dose delivered by scattered electrons.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: December 5, 2006
    Assignee: Electron Porcessing Systems, Inc.
    Inventors: Samuel V. Nablo, Denise A. Cleghorn, James C. Wood, Jr.
  • Process for electron sterilization of a container
    Publication number: 20060192140
    Abstract: Minimum electron energy is used for the sterilization of preformed containers in order to minimize the machinery size, cost and radiation shielding required for in-line use. The electron energy required is reduced by the use of one-sided (unilateral) irradiation wherein the dose delivered by the primary radiation to thicker portions of the containers is supplemented by the dose delivered by scattered electrons.
    Type: Application
    Filed: March 5, 2003
    Publication date: August 31, 2006
    Inventors: Samuel Nablo, Denise Cleghorn, James Wood
  • Technique for interior electron sterilization of an open mouthed container
    Patent number: 6221216
    Abstract: Commercial sterilization of the interior surfaces of containers, cups or bottles by the use of energetic electrons is accomplished by directing electrons of moderate energies through the open mouth of such containers. Electrons which would normally illuminate the container beyond the inner diameter of the neck opening may be absorbed by a suitable electron-absorbing and cooled mask positioned above the container neck.
    Type: Grant
    Filed: August 30, 1999
    Date of Patent: April 24, 2001
    Assignee: Electron Processing Systems, Inc.
    Inventors: Samuel V. Nablo, Denise A. Cleghorn