Door operator with automatic control of auxiliary circuit

A door operator having a motor connected to move the door in opening and closing directions, comprising, in combination,

• sequencing means connected to selectively energize and de-energize said motor from a voltage source in a predetermined sequence of door opening, door open, door closing, and door closed conditions,
• an electric lamp,
• means connecting said sequencing means to energize said lamp during said door opening, door open, and door closing conditions and to establish a lamp de-energized condition for at least part of said door closed condition,
• and alarm means connected to be armed by said sequencing means during said at least part of said door closed condition.

A door operator having a motor connected to move the door in opening and closing directions comprising, in combination,

• motor energization contact means connected to said motor and to voltage terminal means to establish energization of said motor upon said contact means being closed,
• an electric lamp,
• lamp energization contacts connected to said lamp and to said voltage terminal means to establish energization of said lamp upon said contacts being closed,
• sequencer means to actuate said contact means to establish sequentially door moving and door stationary conditions and said sequencer means also actuating said lamp contacts independently of said contact means to establish a lamp energized condition for at least part of the door moving condition and a lamp off condition for at least part of the door stationary condition,
• and delay means in said door operator for holding said lamp contacts closed for a delay period after a door stationary condition is established.

A door operator having a motor connected to move the door in opening and closing directions, comprising in combination:

• plural contact means including first and second contact means,
• a motor energization circuit including at least one of said contact means connected to the motor and to voltage terminal means to establish energization of the motor,
• an electric lamp,
• a lamp energization circuit including at least one of said contact means connected to said lamp and to said voltage terminal means to establish energization of said lamp,
• sequencer means connected to actuate said contact means to establish sequentially door moving and door stationary conditions and to establish a lamp energized condition for at least a part of said door moving condition and a lamp off condition for at least part of said door stationary condition,
• said sequencer means connected to actuate said first and second contact means as double throw contacts with one enabled substantially concurrently with the disabling of the other,
• means connecting said first contact means in one of said energization circuits,
• and means connecting said second contact means to output terminal means to establish enabling of said output terminal means upon disabling of said one of said energization circuits.