Patents by Inventor William Mercer Burstall

William Mercer Burstall 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: 3996737
    Abstract: A method of making a one-piece elevator link having a shank with an eye at each end involving the steps of casting from alloy steel a link blank having an oversize shank portion, forging or swaging the shank portion to reduce its diameter and correspondingly elongate it, and heat treating and drawing the forged or swaged blank to enhance its physical and mechanical properties. The eyes are cast in their final form. The oversize shank portion may be machined to reduce its diameter before it is forged or otherwise hot worked, whereby castings of but one size may be used in the production of elevator links of varying lengths.A cast elevator link blank to be hot worked into an elevator link of final form.
    Type: Grant
    Filed: December 10, 1975
    Date of Patent: December 14, 1976
    Assignee: BJ-Hughes Inc.
    Inventor: William Mercer Burstall