Patents by Inventor Rex R. Kotschwar

Rex R. Kotschwar 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).

  • Sprayable polyurethane compositions
    Patent number: 5614575
    Abstract: A sprayable polyurethane composition containing an isocyanate component and a polyol component is provided, wherein the polyol component includes a polyether polyol amine; a nitrogen-free hydoxy-terminated polyether; and a sucrose-polyether polyol. Preferably, these two components are combined while spraying them individually into a mold along with a fibrous-reinforcing material.
    Type: Grant
    Filed: April 24, 1995
    Date of Patent: March 25, 1997
    Assignee: RPG. Inc.
    Inventor: Rex R. Kotschwar
  • Beverage cooler
    Patent number: 4242884
    Abstract: This invention relates to beverage coolers in general and more specifically to an improved beer keg cooling and transporting device which comprises a segmented foam cooler structure which envelopes the keg and includes a pocket which when filled with a relatively small portion of ice will maintain the keg at a sufficiently cold temperature, and further including handles to facilitate transporting the keg and cooler.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: January 6, 1981
    Inventor: Rex R. Kotschwar