Patents by Inventor E. Wayne Laws

E. Wayne Laws 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: 4531776
    Abstract: An operator's safety cab for an underground continuous miner for coal and the like has a cage constructed of triangular-shaped tubing to provide for torsional rigidity and a shearing edge for material falling on the cab from roof or wall cave-ins. The cab has a canopy with a plurality of angled surfaces and a frontal angled screened section for deflection of falling material and protection from crushing material. The cab also has a cab door supported by the edges of the cab and has six support standards of triangular cross-section to support the canopy and frontal section. The sides and door of the cab are screened with heavy mesh screens to further protect the operator.
    Type: Grant
    Filed: December 27, 1983
    Date of Patent: July 30, 1985
    Assignee: Frank A. Scavo
    Inventors: Dee G. Laws, Frank A. Scavo, E. Wayne Laws, Frank R. Scavo