Patents by Inventor Robert Keats

Robert Keats 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).

  • Machine guarding system having a sensing mat with status indicator lights
    Patent number: 7119704
    Abstract: A machine guarding system generally includes a switch mat in electrical communication with a machine being guarded. The switch mat is adapted to be placed on a floor adjacent the machine being guarded and includes a pressure actuated switch mechanism which causes power to the machine to be terminated when a pressure is applied to the switch mat. The switch mat further includes a status indicator display disposed on a surface of the switch mat which is illuminated based on a status of the machine being guarded. In a preferred embodiment, the machine guarding system further includes a machine control unit for controlling power to the machine being guarded. The switch mat is in electrical communication with the machine control unit, wherein the switch mechanism causes the machine control unit to terminate power to the machine when a pressure is applied to the switch mat. The machine control unit also illuminates the indicator display based on a status of the machine being guarded.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: October 10, 2006
    Assignee: Tapeswitch Corporation
    Inventors: John Grzan, Robert Keats
  • Machine guarding system having a sensing mat with status indicator lights
    Publication number: 20060082465
    Abstract: A machine guarding system generally includes a switch mat in electrical communication with a machine being guarded. The switch mat is adapted to be placed on a floor adjacent the machine being guarded and includes a pressure actuated switch mechanism which causes power to the machine to be terminated when a pressure is applied to the switch mat. The switch mat further includes a status indicator display disposed on a surface of the switch mat which is illuminated based on a status of the machine being guarded. In a preferred embodiment, the machine guarding system further includes a machine control unit for controlling power to the machine being guarded. The switch mat is in electrical communication with the machine control unit, wherein the switch mechanism causes the machine control unit to terminate power to the machine when a pressure is applied to the switch mat. The machine control unit also illuminates the indicator display based on a status of the machine being guarded.
    Type: Application
    Filed: October 19, 2004
    Publication date: April 20, 2006
    Inventors: John Grzan, Robert Keats