Patents by Inventor Michael D. Walsh, III

Michael D. Walsh, III 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: 4323328
    Abstract: The subject trailer includes a single tubular for-and-aft horizontal tow-bar towed at its front end by a tow ball hitch. Welded vertically to a rear end portion of the tublar tow bar is a tubular mast having pulleys guiding a cable from a winch on said tow bar up and over said mast and connecting to a towing hammock for attaching to a vehicle to be towed. The hammock has a central pair of flanges guiding the hammock vertically on the tubular mast while allowing the mast to rotate 30.degree. on its own axis between the flanges while bolted to the hammock after the latter being hoisted to the vehicle towing level. Welded to the tow bar is a rigidly symmetrically laterally extending tubular axle co-axially rotatably mounting a pair of #15 sized balloon tired wheels on the opposite axle ends, causing the trailer to track straight behind the towing vehicle by flexing, both at the vertical tow-ball socket joint and at the vertical 30.degree. mast-hammock-flange-and-bolt-joint.
    Type: Grant
    Filed: February 13, 1979
    Date of Patent: April 6, 1982
    Inventor: Michael D. Walsh, III