Patent
Operators for sliding gates
TLDR
In this paper, a solenoid-operated detent for engaging a gear of the gate drive motor shaft speed reducer and locking the associated gate, and a key-operated cam for disengaging the detent from the gear.Abstract:
Operators for sliding gates including a solenoid-operated detent for engaging a gear of the gate drive motor shaft speed reducer and locking the associated gate, and a key-operated cam for disengaging the detent from the gear.read more
Citations
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Patent
Gate operator apparatus and method with learning-mode
TL;DR: In this paper, the authors describe a learning mode for a gate operator to learn desired acceleration, deceleration, and acceleration profiles for the gate movement in each direction of movement between opened and closed positions.
Patent
Gate operator method and apparatus with self-adjustment at operating limits
TL;DR: In this paper, an automatic gate operator includes an electric drive motor coupled by a drive train to a movable gate, and includes provision for measuring the coasting distance which the gate moves after shut off of the drive motor.
Patent
Electrically actuated overhead garage door opener with solenoid actuated latches
TL;DR: In this article, a garage door opener with solenoid latches is provided with a circuit for energizing the coils of the latches with power from a 24volt step-down transformer, either as 120 volt power is applied to a motor to move the door in response to detection of an initial surge of current or as a manual or radio controlled command switch is actuated.
Patent
Electrically operated system for drawing curtains and other types of barriers
TL;DR: In this article, an electrically operated drawing system for drawing and undrawing curtains includes an electric motor, a clutch having a solenoid, a rotation detector for detecting rotation of the electric motors, an operating switch for outputting command signals, and a control logic circuit.
Patent
Lock system for an automatic door
TL;DR: In this article, an automatic door lock system is described, in which an endless belt running round a driving pulley driven by an electric motor and a driven pulley spaced apart from the pulley is used for issuing a pulse signal proportionate to a speed of a door member.
References
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Patent
Remote-controlled automatic control apparatus
TL;DR: In this paper, a remote-controlled automatic door control apparatus includes a door, a driving unit connected to the door for driving the door to open and closed positions, and a control arrangement for controlling the door operation through the driving unit and including a radio communication system having a transmitter and a receiver.
Patent
Digital encoder for door operator
TL;DR: In this paper, a digital radio control system comprising a transmitter for producing a repeating series of width modulated pulses, and a receiver responsive only to a series of predetermined pulse characters to actuate a load device such as a garage door operator is presented.
Patent
Operator motor control
TL;DR: In this article, a control system for a power driven operator for garage doors and the like comprising an operator control circuit having a DC voltage source operating as the power supply for an electronic flip-flop device responsive to successively applied input signals to alternatively establish circuits of opposite direction through a reversible electric motor is described.
Patent
Power circuit for variable frequency, variable magnitude power conditioning system
TL;DR: In this article, a power circuit arrangement for a power conditioning system adapted to supply variable frequency, variable magnitude voltage to an electromagnetic device such as an electric motor having a center-tapped winding includes first and second inverting thyristors connected to the respective winding ends and connected in series with a transistor chopper.
Patent
Sequencing control circuit
Bay E. Estes,Richard A. Nedbal +1 more
TL;DR: In this paper, a sequencing control circuit is provided for a door operator motor which is connected to open and close a garage door as controlled by signals from manual switches and load switches, and enabling means are provided to enable the motor during this time period yet to disable the constant signal from the push button for periods longer than this time delay period.