Movable barrier operator
First Claim
1. A movable barrier operator having a safety mechanism, comprising:
- an electric motor;
a transmission connected to the motor to be driven thereby and connectable to a movable barrier to be moved;
a controller, responsive to a command to move the barrier, for controlling activation of the motor, wherein the controller automatically determines whether an accessory control device is present and further controls operation of the accessory control device; and
an operating routine for varying activation of the motor based on the controller detecting the presence of the accessory control device, wherein, when the presence of the accessory control device is detected, the controller delays starting the motor for a predetermined time after receiving the command to move the barrier, and the accessory control device causes an alarm during the predetermined delay time.
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Accused Products
Abstract
A movable barrier operator having improved safety and energy efficiency features automatically detects line voltage frequency and uses that information to set a worklight shut-off time. The operator automatically detects the type of door (single panel or segmented) and uses that information to set a maximum speed of door travel. The operator moves the door with a linearly variable speed from start of travel to stop for smooth and quiet performance. The operator provides for full door closure by driving the door into the floor when the DOWN limit is reached and no auto-reverse condition has been detected. The operator provides for user selection of a minimum stop speed for easy starting and stopping of sticky or binding doors.
79 Citations
17 Claims
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1. A movable barrier operator having a safety mechanism, comprising:
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an electric motor;
a transmission connected to the motor to be driven thereby and connectable to a movable barrier to be moved;
a controller, responsive to a command to move the barrier, for controlling activation of the motor, wherein the controller automatically determines whether an accessory control device is present and further controls operation of the accessory control device; and
an operating routine for varying activation of the motor based on the controller detecting the presence of the accessory control device, wherein, when the presence of the accessory control device is detected, the controller delays starting the motor for a predetermined time after receiving the command to move the barrier, and the accessory control device causes an alarm during the predetermined delay time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for moving a movable barrier having a motor and a transmission operably connecting the motor and the movable barrier, the method comprising:
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receiving a command to move the barrier;
controlling, responsive to a command to move the barrier, operation of the motor;
automatically determining whether an accessory control device is present; and
varying the activation of the motor based on whether the accessory control device is present, wherein, upon detecting the presence of the accessory control device, movement of the movable barrier in response to the command to move the barrier is delayed, and an alarm is produced during the time the movement of the movable barrier is delayed. - View Dependent Claims (11, 12)
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13. A movable barrier operator having a motor and a transmission operably connecting the motor and the movable barrier and a safety mechanism, comprising:
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means for receiving a command to move the barrier;
means for controlling, responsive to a command to move the barrier, operation of the motor;
means for automatically determining whether an accessory control device is present;
means for varying activation of the motor based on whether the accessory control device is present;
means for delaying, in response to the command to move the barrier, movement of the movable barrier upon detecting the presence of the accessory control device; and
means for producing an alarm during the time the movement of the movable barrier is delayed. - View Dependent Claims (14, 15)
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16. A movable barrier operator having a safety mechanism, comprising:
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an electric motor;
a transmission connected to the motor to be driven thereby and connectable to a movable barrier to be moved;
a controller, responsive to a command to move the barrier, for controlling activation of the motor, wherein the controller automatically determines whether an accessory control device is present; and
an operating routine for varying activation of the motor based on the controller detecting the presence of the accessory control device, wherein, when the presence of the accessory control device is detected, the controller delays starting the motor for a noticeable time of about 2 sec after receiving the command to move the barrier.
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17. A movable barrier operator having a safety mechanism, comprising:
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an electric motor;
a transmission connected to the motor to be driven thereby and connectable to a movable barrier to be moved;
a controller, responsive to a command to move the barrier, for controlling activation of the motor, wherein the controlled automatically determines whether a warning module is present; and
an operating routine for varying activation of the motor based on the controller detecting the presence of the warning module, wherein, when the presence of the warning module is detected, the controller delays starting the motor for a noticeable time of about 2 sec after receiving the command to move the barrier, and the warning module causes a user warning signal before the barrier starts to move.
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Specification