Patents by Inventor Scott H. Richgels

Scott H. Richgels 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).

  • Fillers for improved epoxy laminates
    Publication number: 20010014705
    Abstract: Epoxy laminates incorporate up to 20 wt. % talc particles, particularly pure Montana platy talc particles having a maximum particle size of about 40 &mgr;m providing improved drilling performance, reduced dust formation, and improved Z-direction CTE, particularly when the epoxy resin has a Tg of about 150° C. or higher. The talc is selected from those which do not significantly reduce the electrical strength of the laminate relative to those which contain no talc particles. Characteristically, the talcs will have less than 5 wt. % impurities and less than 0.01 wt. % (100 wt.ppm) water extractable anions.
    Type: Application
    Filed: December 13, 2000
    Publication date: August 16, 2001
    Applicant: Isola Laminate Systems Corp.
    Inventors: Aroon V. Tungare, Scott H. Richgels, Jeffrey R. Kamala, Peggy M. Conn
  • Method for measuring degree of cure of resin in a composite material and process for making the same
    Patent number: 5142151
    Abstract: A method for measuring the degree of cure of a resin in a composite material such as a prepreg. The method employs an infrared spectrometer device determining frequency absorbance information of selective frequencies which are representative of the degree of cure of the resin comprised within the prepreg. The method is adaptable for use in on-line production processes for the production of such composite materials.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: August 25, 1992
    Assignee: Allied-Signal Inc.
    Inventors: William D. Varnell, Mark J. Doty, Scott H. Richgels, Trudie M. Knox, Andrew N. Parfomak