Patents by Inventor Tuyosi Matoba

Tuyosi Matoba 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).

  • Elevated location descent apparatus
    Patent number: 7117975
    Abstract: An elevated location descent apparatus comprising a descending device, a braking device and a power transmitting device; the descending device comprising sprockets positioned in a vertical plane, a suspension chain positioned around the sprockets and a payload-suspending means attached to the suspension chain, the braking device comprising a fluid pump converting the rotational movement of a crankshaft into the reciprocal movement of pistons, which reciprocal movement causes the fluid pump to receive a fluid from an inlet and discharge the fluid through an outlet, a fluid circulating conduit connecting the outlet of the fluid pump with the inlet of the fluid pump wherein the fluid discharged from the fluid pump circulates, a flow-restricting valve adjusting the amount of the fluid passing through the outlet of the fluid pump to generate the fluid resistance, and a rotational governor controlling the flow-restricting valve based on the rotational speed of the sprocket; the power transmitting device comprising
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: October 10, 2006
    Inventor: Tuyosi Matoba
  • Device for lowering/carrying from elevated place
    Publication number: 20040011591
    Abstract: An elevated location descent apparatus comprising a descending device, a braking device and a power transmitting device; the descending device comprising sprockets positioned in a vertical plane, a suspension chain positioned around the sprockets and a payload-suspending means attached to the suspension chain, the braking device comprising a fluid pump converting the rotational movement of a crankshaft into the reciprocal movement of pistons, which reciprocal movement causes the fluid pump to receive a fluid from an inlet and discharge the fluid through an outlet, a fluid circulating conduit connecting the outlet of the fluid pump with the inlet of the fluid pump wherein the fluid discharged from the fluid pump circulates, a flow-restricting valve adjusting the amount of the fluid passing through the outlet of the fluid pump to generate the fluid resistance, and a rotational governor controlling the flow-restricting valve based on the rotational speed of the sprocket; the power transmitting device comprising
    Type: Application
    Filed: July 21, 2003
    Publication date: January 22, 2004
    Inventor: Tuyosi Matoba