Abstract:
A latching device for a security gate of the type used at the entrance of subterranean garages for apartments or condominiums or secured storage rental areas is disclosed which is mechanically actuated by operation of the motor drive system to open the security gate. The latching device effectively prevents the security gate from being forced open, and in one embodiment includes a mechanism for preventing manual disengagement of the latch from attempts to force the gate laterally until the latch disengages. The latching device of the present invention is substantially cheaper than other security gate locking devices, as well as being highly reliable and wear-resistant.
Abstract:
A sliding door operator comprises a tubular housing adapted to receive first and second elongated bars in a spaced apart and parallel arrangement. Both bars include a gear-toothed rack engaged by a single motor driven gear. An end of one bar is secured to the door and an end of the other bar is secured to a wall structure. A bracket secured to the door includes registering apertures adapted to mate with a bore in the end of one of the bars so that the bar can be detachably locked to the door by a locking pin. The other bar also includes a bore adapted to mate with the aperture in a channel bracket secured to the stationary wall structure to receive a removable locking pin therethrough. In addition, the operator includes a locking mechanism for locking the bars in a fixed position with respect to each other.
Abstract:
A remote control automatic gate assembly includes a hinged gate having a drive motor and track constructed on the gate itself with a sliding trolley connected to an adjacent post by a normally fixed length control arm. An automatic latching mechanism is provided which is operative in responsive to overtravel retracting movement of the trolley. The overtravel retracting movement of the trolley is taken up by slack adjustment mechanism to enable the gate to remain in its closed position during latching and unlatching of the gate.
Abstract:
An improved electrically operated gate having a rectangular frame with a top horizontal rail, a bottom horizontal rail and vertical ends, a roller adjacent each end extending below the bottom rail by which the gate rolls from open to closed positions, the gate moving in a longitudinal vertical plane, a roller engaging the top rail to maintain the frame in a vertical plane, an inverted horizontal rack affixed to the frame on one side thereof adjacent the frame bottom, the rack having a series of equally spaced teeth, an electric motor drive means affixed at a stationary position adjacent the gate frame and having a pinion drive gear rotatably extending therefrom below the rack and in engagement with the rack teeth, and springs to resiliently urge the pinion gear upwardly into engagement with the rack teeth so that when the electric motor is energized the frame is longitudinally moved to open or close the gate.
Abstract:
A logic control and safety circuit for an electrically actuated gate, or the like. Upon command, a counter directs pulses from a free running oscillator of selective frequency to timer and motor control circuitry, effecting sequential gate operations. The normal gate sequence includes open, pause, and close cycles. Electro-mechanical and electrical safety features are included should the gate encounter an obstruction during either the open or the close cycles, or fail to complete a cycle for any reason. Automatic reset circuitry advances the gate through a "close" cycle following a power failure.
Abstract:
An auxiliary door opening device comprises an extendible motor driven rotatable output shaft that engages and rotates a pivot shaft of a conventional door closing mechanism. The pivot shaft is drivingly connected to a pair of pivotally connected arms of the door closing mechanism, such that rotation of the pivot shaft causes the arms of the door closing device to pivot, urging the door open. The door opening device is activated by a remote switching device so that a handicapped person may open the door with a minimum of effort. A limit switch causes the motor to shut off and the output shaft to retract out of engagement with the pivot shaft when the door is fully opened. A solenoid apparatus holds the door open long enough to allow a handicapped person to pass through the door before allowing the door closing mechanism to urge the door closed. When not actuated by the switching device, the door opens manually and the door closing mechanism controls door closing in its normal manner, unaffected by the door opening device.
Abstract:
The device comprises for each window an electric driving motor and a selector which is adapted to ensure the selective supply of current to the motor, in one direction or the other, through a control circuit acting on a supply source. The supply source is of the type capable of delivering at least two distinct energy levels. The control circuit comprises means for applying to an input of the supply source an energy level control signal which produces, as a function of the position of the selector, the application of a torque to the motor when raising the window which is higher than the torque applied when descending the window.
Abstract:
A conventional garage door opener assembly has integrated therewith an electrically actuated solenoid assembly at each side of the garage door actionable between the garage door frame and the door. In the case of a solidly assembled door pivotal between closed and opened position, the solenoid assemblies are mounted near the lower extremities of the door so as not to interfere with door movement, while still being capable of locking the door in closed position. The solenoid assemblies are interiorly secured at the door frame sides with the housings thereof permanently projecting across the clearance spaces between the door frame and door and interiorly overlapping the door with the solenoid plungers projectable therefrom in this overlapping positioning into aligned latch members secured interiorly of the door. The electrical power supplies for the solenoid assemblies are preferably directly connected into the controlling power supply circuits of the conventional garage door opener so that actuation of the opener causes coordinated simultaneous actuation of the solenoid assemblies to properly release the door for opening movement and lock the door in closed position. The individual solenoid assemblies may include unique guide rod actuation and guiding of the solenoid plungers, and unique plunger movement control and limitation by a simplified stop plate.
Abstract:
A door operator for a vehicle wherein resilient means couples the drive arm to the door to control the force applied by the door operator throughout the door closing cycle. The operator is compact and mountable in the side wall of the vehicle above the floor and includes an independent locking system, together with an emergency opening assembly.
Abstract:
In a motor operated overhead garage door the operator is connected to a bell-crank lever pivotally mounted on the garage door so that the first movement of the operator swings the bellcrank lever to retract a spring pressed locking device for locking the door in closed position. Further movement of the operator lifts the door in a conventional manner.