Patents by Inventor Lloyd H. Wartman

Lloyd H. Wartman 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).

  • Orthopedic cast
    Patent number: 4483333
    Abstract: An orthopedic cast made of a mixture of polyethylene and a thermoplastic polyester having a melting point between 50.degree. C. and 100.degree. C., particularly poly (epsilon-caprolactone), having a weight average molecular weight of over 5,000 with a half-time crystallization at 36.degree. C. of between 0.5 minute and 10.0 minutes.
    Type: Grant
    Filed: June 1, 1982
    Date of Patent: November 20, 1984
    Assignee: WRF/Aquaplast Corporation
    Inventor: Lloyd H. Wartman
  • Orthopedic cast
    Patent number: 4240415
    Abstract: An orthopedic cast made of a thermoplastic polyester having a melting point between 50.degree. C. and 100.degree. C., particularly poly (epsilon-caprolactone) having a weight average molecular weight of over 5,000 subjected to electron radiation in the range from 0.25 to 15.0 megarads.
    Type: Grant
    Filed: December 18, 1978
    Date of Patent: December 23, 1980
    Assignee: WFR/Aquaplast Corp.
    Inventor: Lloyd H. Wartman
  • Method of forming an orthopedic cast
    Patent number: 4019505
    Abstract: An orthopedic cast made of a thermoplastic polyester having a melting point between 40.degree. C and 70.degree. C, particularly poly(epsilon-caprolactone) having a weight average molecular weight of over 30,000. The cast is formed of a continuous or foraminous sheet which is either solid polyester or polyester on a substrate which is not melted at the melting point of the polyester. The sheet is made plastic by heating in water of suitable temperature and then wrapping around the subject limb.
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: April 26, 1977
    Assignee: Norman S. Blodgett
    Inventor: Lloyd H. Wartman