Patents by Inventor Mark E. Lanham

Mark E. Lanham 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: 5016816
    Abstract: Resilient railroad fastener system comprising an elongated shoulder member and spring clip to be so applied and combined with the shoulder member as to create a toe load applied downward to the rail; the shoulder member having a reaction surface to be engaged at a first angle by one arm of the spring clip and the shoulder member being configured with a capturing surface to capture the other spring arm while cocking the spring clip at an angle to the horizontal when the spring clip is applied to the shoulder member; whereby when installed the spring clip has a toe load impressed thereon which is the vector sum of the clip load and shoulder reaction.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: May 21, 1991
    Assignee: Unit Rail Anchor Company
    Inventor: Mark E. Lanham