Patents by Inventor Derwood C. Abbott

Derwood C. Abbott 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: 5291746
    Abstract: A refrigerated container for receiving, storing, and transporting materials without necessity of personnel contacting the materials after deposit in the container. The container is particularly adapted for use with medical wastes which may contain infectious materials. The container comprises a lower portion and a lid portion. The container lower portion includes an open-topped inner box for holding waste materials, and an open-topped insulated outer box surrounding and spaced apart from the inner box forming an annular space therebetween. The lid is releasably attached to the outer box and has doors for access into the inner box of the container. A refrigeration unit and air circulation fan are attached to the lid, and are in communication with the annular space for cooling the inner box by circularing refrigerated air through the annular space.
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: March 8, 1994
    Inventor: Derwood C. Abbott