Patents by Inventor Robert Earl Sumrell

Robert Earl Sumrell 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: 4008669
    Abstract: A cargo tie-down anchoring apparatus for a refrigerated van and the like comprising series of resiliently biased eye bolts disposed in grooves along opposite sides of the floor of the van, which eye bolts extend through the floor and transverse floor supporting flanged beams, said eye bolts, when not in use, being in retracted position in the respective floor grooves so as not to interfere with loading and unloading of the van with the usual perishable cargo and when in use, being elevated above the floor level and engaged by hooks at the ends of flexible strap assemblies having buckle means for tightening the strap assemblies over heavy cargo such as steel coils.
    Type: Grant
    Filed: November 28, 1975
    Date of Patent: February 22, 1977
    Inventor: Robert Earl Sumrell