Safety garage door retrofit system
First Claim
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1. A retrofit automatic garage door closer to be used with existing door operators having a motor and a transmission connecting the motor to the door to open and close the door, the automatic closer comprising:
- a control unit connected to the motor and capable of commanding the motor to open and close the door;
said control unit including a timing routine for timing a period in which the door is in an opened position, said unit capable of actuating the motor to close the door after said period has timed out; and
at least one detector for detecting whether there is activity within the garage, said detector in communication with said control unit whereby the detection of activity alters said timing routine.
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Abstract
An automatic door operating safety system particularly used with garage doors is provided. A security timer for a powered overhead garage door causes the door to close after it has been opened for a predetermined time interval. Before timeout, the system will determine by its various sensors whether there is any activity within the area. Upon the absence of such activity the system signals the command for door closures
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Citations
10 Claims
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1. A retrofit automatic garage door closer to be used with existing door operators having a motor and a transmission connecting the motor to the door to open and close the door, the automatic closer comprising:
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a control unit connected to the motor and capable of commanding the motor to open and close the door;
said control unit including a timing routine for timing a period in which the door is in an opened position, said unit capable of actuating the motor to close the door after said period has timed out; and
at least one detector for detecting whether there is activity within the garage, said detector in communication with said control unit whereby the detection of activity alters said timing routine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification