Abstract: An electric brake circuit for holding an alternating current motor rotor stationary uses a direct current brake acting on an AC motor rotor. The rotor has at least one groove formed therein positioned for alignment with at least one AC motor pole when switching from an alternating current to DC. The AC induction motor holds the rotor stationary against a heavier load by using the grooved rotor with the grooves formed in the rotor aligning with the AC motor's poles.

Abstract: A retractable light fixture apparatus has a fixture housing for mounting in or to the wall of a building or under the eave of a building. A lamp housing and lamp is hinged to the fixture housing and is movable from a closed to an open position by an electric motor and from an open to a closed position by a gas spring. An electric brake holds the lamp housing in an open position against the gas spring whenever electric power is applied thereto.

Abstract: An electric brake circuit for holding an alternating current motor rotor stationary uses a direct current brake acting on an AC motor rotor. The rotor has at least one groove formed therein positioned for alignment with at least one AC motor pole when switching from an alternating current to DC. The AC induction motor holds the rotor stationary against a heavier load by using the grooved rotor with the grooves formed in the rotor aligning with the AC motor's poles.

Abstract: A retractable light fixture apparatus has a fixture housing for mounting in or to the wall of a building or under the eave of a building. A lamp housing and lamp is hinged to the fixture housing and is movable from a closed to an open position by an electric motor and from an open to a closed position by a gas spring. An electric brake holds the lamp housing in an open position against the gas spring whenever electric power is applied thereto.

Abstract: A retractable light fixture apparatus has a housing having sides and a bottom and having an open end covered by a cover and having a lamp and reflector attached to the cover. An electrically actuated lamp solenoid is attached inside the housing and has a solenoid arm attached to the cover and lamp for raising the lamp and cover from inside the housing when the solenoid is in an extended position and for lowering the lamp and cover back onto the housing when the lamp solenoid arm is lowered. An electrical conductor is connected from an electrical power source to the lamp solenoid and to the lamp for powering the lamp and solenoid. The solenoid has a casing having a coil attached therearound for at least a portion of the length of the casing for generating a magnetic field in the casing for driving a slidable piston having the extendable solenoid arm attached to one end thereof.

Abstract: A retractable light fixture apparatus has a housing having sides, a bottom, and an open end having a cover attached thereto. A lamp is attached to the housing cover which is hinged to the housing and which is actuated by a lamp solenoid which is movably attached to the bottom of the housing and pinned to the housing cover and lamp.

Abstract: A retractable light fixture apparatus has a housing having sides, a bottom, and an open end having a cover attached thereto. An electrically actuated lamp solenoid is attached inside the housing and has a solenoid arm having a lamp attached to the end thereof for raising the lamp from inside the housing through the housing cover when the solenoid is in an extended position and for lowering the lamp back into the housing when the lamp solenoid arm is lowered. An electrical conductor is connected from an electrical power source to the lamp solenoid and to the lamp for powering the lamp and solenoid. The electrical conductor has a remote switch therein for turning the power to the lamp on and off. A system for latching has a latching solenoid for holding the lamp solenoid and lamp thereon in an extended position.