Electricity: motive power systems – Automatic and/or with time-delay means – Movement – position – or limit-of-travel
Reexamination Certificate
2011-08-23
2011-08-23
Benson, Walter (Department: 2837)
Electricity: motive power systems
Automatic and/or with time-delay means
Movement, position, or limit-of-travel
C318S445000, C318S434000, C160S311000
Reexamination Certificate
active
08004224
ABSTRACT:
Method—and device for the implementation thereof intended to provide a protection system for barriers which are movable along an operating path and actuated by a motor, such as roller blinds, gates or the like, comprising the steps of connecting the barrier, with play, to a fixed part (30) so that the barrier is able to move independently of the action of the motor over a travel section (98); defining within the section (98) a set of safety positions corresponding to a safety position for the barrier; detecting along the travel section (98) the actual position of the barrier with respect to the fixed part (30); preventing or reversing the action of the motor and/or the movement of the barrier when the barrier, inside the travel section (98), does not have a position included within the set of safety positions.
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Bortolan Bruno
Marchetto Oscar
Tomasella Sergio
Benson Walter
Katten Muchin & Rosenman LLP
Luo David S
Nice SpA
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