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US 7,119,704 B2Granted
Machine guarding system having a sensing mat with status indicator lights
AssigneeTapeswitch Corporation
InventorsJohn Grzan, Robert Keats
Life of this patent
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AssigneeTapeswitch Corporation
InventorsJohn Grzan, Robert Keats
Estimating the term…
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.
A machine guarding system comprising a switch mat in electrical communication with a machine being guarded, said switch mat being adapted to be placed on a floor adjacent the machine being guarded and including:
A method for guarding a machine work area against intrusion comprising the steps of:
A switch mat comprising:
Dependencies are inferred from the claim text.