Patents by Inventor Michael J. Partington

Michael J. Partington 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).

  • Hitch device for interconnecting mobile apparatus in tandem
    Patent number: 5118127
    Abstract: The invention is a hitch device for interconnecting two mobile apparatus, such as a hospital gurney and an IV stand. The hitch device comprises a body having first and second ends, each end having a coupling for attachment to a mobile apparatus, and a monoplanarly flexible intermediate portion disposed between the first and second ends. The intermediate portion includes a chain, which is oriented so that only lateral flexing is permitted when the device is in use. The intermediate portion also includes a resilient tube or spring for biasing the intermediate portion to an axial position. A stop located on the first end prevents upward rotation of the intermediate portion beyond a horizontal position when the device is in use.
    Type: Grant
    Filed: November 30, 1989
    Date of Patent: June 2, 1992
    Inventor: Michael J. Partington