Patents by Inventor Hollis M. Berry

Hollis M. Berry 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).

  • Yieldable door body
    Patent number: 3979872
    Abstract: A door body formed largely of yieldable material has two panels spaced apart with a hollow separator between them that is rectangular in cross section and has two pairs of oppositely disposed sides and two dividers therein at right angles to each other that thereby provide four enclosed openings. This construction holds the paneled portion of the door body firm, especially at the outer edges, yet is flexible enough to permit some distortion when the door is forcibly opened as by striking it vigorously with a moving truck.
    Type: Grant
    Filed: March 2, 1972
    Date of Patent: September 14, 1976
    Assignee: Eckel Industries, Inc.
    Inventors: Henry R. Gilchrist, Hollis M. Berry