Patents by Inventor Job Frederick Smith

Job Frederick Smith 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).

  • Underground mine equipment
    Patent number: 4068088
    Abstract: An underground mine cable handler comprises two parallel ropes hauled behind the mining machine, a series of box like elements being threaded on the ropes to provide a protective corridor for at least one supply cable and/or hose for the machine.
    Type: Grant
    Filed: February 24, 1976
    Date of Patent: January 10, 1978
    Assignee: Coal Industry (Patents) Limited
    Inventor: Job Frederick Smith
  • Protection equipment for flexible elongated members
    Patent number: 4006875
    Abstract: The cable handling chain is made up of a plurality of links, each comprising a support component pivotally connected to adjacent links and a generally U-shaped retaining component the ends of the limbs of which are releasably secured to the support component to define a closed-sided passage for the cable.
    Type: Grant
    Filed: December 23, 1975
    Date of Patent: February 8, 1977
    Assignee: Coal Industry (Patents) Limited
    Inventors: Job Frederick Smith, Owen O'Neill