Patents by Inventor Llewellyn P. Basterfield

Llewellyn P. Basterfield 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).

  • Pressure vessel fastening means
    Patent number: 4379513
    Abstract: A pressure vessel which is suitable for use as a cooking utensil, autoclave, or like device. The vessel includes a container with a number of pivotal, threaded shanks, and a lid with pairs of supports between which the shanks pass. Wing nuts on the shanks can be tightened to secure the lid to the container. The supports have upturned ends which, when the wing nuts are slackened to a limited extent prevent pivotal disengagement of the shanks from the supports.
    Type: Grant
    Filed: June 18, 1981
    Date of Patent: April 12, 1983
    Assignee: Chern Developments (Proprietary) Limited
    Inventors: Ernest P. Basterfield, Llewellyn P. Basterfield