Patents by Inventor Otto L. Lagervall

Otto L. Lagervall 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: 4326725
    Abstract: A wide runner, steerable, lightweight sled, and more particularly to a sled construction which incorporates the use of a pair of aluminum one piece runner extrusion, at least 21/2" wide, with recessed groove along bottom center and vertical sides for stiffness, together with an aluminum channel member extrusion, which, by the nature of its design and useage, provides integral structural components in the framework of said sled, with steering means provided involving a flexing or tilting of runner members, the degree of flex diminishing rearwardly to zero, allowing the unflexed back end of runner members to slide around curves as in skiing.
    Type: Grant
    Filed: April 10, 1980
    Date of Patent: April 27, 1982
    Inventor: Otto L. Lagervall