Patents by Inventor Helen M. Wilburn

Helen M. Wilburn 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: 6241276
    Abstract: An auxiliary wheel assembly for permitting utilization of a wheel barrow as a wagon. The auxiliary wheel assembly includes a pair of support arms adapted for coupling to a wheelbarrow. Each of the support arms has a plurality of uniformly spaced apertures extending through it. An axle extends through an opposed pair of the apertures of the support arms. A pair of wheels are rotatably coupled to the axle and are positioned towards opposite free ends of the axle. In an alternate embodiment, an axle extends generally horizontally and is positioned towards apertures through resting arms of an existing wheelbarrow. A pair of wheels are rotatably coupled to the axle and are positioned towards opposite free ends of the axle. A pair of generally U-shaped bolts couple the axle to the resting arms. The bolts extend around the axle. Free ends of the bolts extend through adjacent pairs of apertures of the resting arms.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: June 5, 2001
    Inventor: Helen M. Wilburn