Patents by Inventor Steven T. Day

Steven T. Day 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).

  • Adjustable lifting sling
    Patent number: 6568511
    Abstract: An adjustable lifting sling including a stationary support with hanger means, one or more cam surfaces pivotally mounted to the support, a ratable locking arm having one or more corresponding complementary shaped surfaces to allow a tensile lifting member to be controllably locked between the cam and complementary shaped surfaces.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: May 27, 2003
    Inventor: Steven T. Day
  • Adjustable lifting sling
    Patent number: 5921353
    Abstract: An adjustable lifting sling including a stationary member having one or more cam surfaces and a rotary member having one or more corresponding complementary shaped surfaces permitting a tensile member to be controllably locked between the cam and complementary shaped surfaces.
    Type: Grant
    Filed: January 21, 1997
    Date of Patent: July 13, 1999
    Inventor: Steven T. Day