Patents by Inventor James E. Donald

James E. Donald 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).

  • Shock absorber
    Patent number: 4000912
    Abstract: A shock absorber utilizing two separating members hingedly attached at their first ends and an arm connected to one of the members to dampen impact shock normally transmitted to a body connected to the other member.
    Type: Grant
    Filed: February 21, 1975
    Date of Patent: January 4, 1977
    Assignee: MSE Corporation
    Inventors: James E. Donald, Gerald I. Weigt