Abstract: A wall-mountable electrical timer for controlling the delivery of power from an AC power source to an electrical load, such as a lamp or a fan motor, includes: a timer adjustment actuator for selecting a predetermined time period of operation for the load; a toggle actuator for starting the timer, turning off the timer, and placing the timer in a bypass mode of operation; a vertical linear array of light-emitting diode visual indicators for indicating the length of a predetermined time period, the time remaining, and whether the timer is in the bypass mode; a controllably conductive device for regulating the delivery of power from the AC source to the load; and a controller for receiving inputs from the timer adjustment actuator and the toggle actuator, and for transmitting outputs to the visual indicators and the controllably conductive device.

Abstract: A switch circuit for controlling the supply of electrical power from an electrical power source to a load includes a power supply switch comprising input, output and control terminals. The circuit further includes an electronic switching device connected to the control terminal of the power supply switch and having an activating input; a momentary switch coupled to the activating input of the electronic switching device; and a charge storage element coupled to the momentary switch. In a first mode, closing the momentary switch in excess of a triggering time charges the charge storage element and triggers the electronic storage device to turn on the circuit to supply power to the load. In a second mode, closing the momentary switch connects the charge storage element to the electronic switching device to turn off the electronic switching device and the power supply switch, thus interrupting the supply of power to the load.

Abstract: The present invention discloses a timer switch that uses an integrated circuit to control the time and a self-locking electromagnetic coil solenoid valve to drive the operation of a microswitch, which is particularly applicable to be installed on a wall as a timer switch. The switch device uses the electronic control of two 1.5V AA batteries to enter a set time through input keys, and a CPU will issue a pulse with very short timing of 30 ms to the solenoid to produce a magnetic field to drive a turning rod and open a primary switch in order to turn on or off a circuit.

Abstract: A control system for a power distribution system includes electrical operators each of which has an open input, a close input and an operator member adapted to cooperate with a corresponding circuit breaker operating mechanism. Each operator member responds to the corresponding open input to actuate the operating mechanism and open the corresponding circuit breaker, and responds to the corresponding close input to actuate the operating mechanism and close the corresponding circuit breaker. A control circuit includes an input for a normal power source, an input for an emergency power source, open outputs electrically connected to the open inputs of the corresponding electrical operators, and close outputs electrically connected to the close inputs of the corresponding electrical operator. The control circuit delays one or more of the close outputs or inhibits one or more of the close outputs after a transfer switch output switches to the emergency source.

Abstract: Apparatus is provided for controlling and limiting the amount of time that a television, computer game, or other electrical appliance can be utilized. The apparatus is inserted in the electrical cord leading to the electrical appliance and is programmable to limit the amount of time that electricity flows through the electrical cord tot he electrical appliance. The plug end of the electrical cord of the appliance is locked into the apparatus to prevent the electrical appliance from being unplugged from the apparatus and plugged into an electrical wall outlet.

Abstract: A protected dual purpose power/enter switch for an integrated receiver/decoder has a first relay and a second relay adapted for operative communication with a motherboard and with each other. A switch and a processor are in operative communication with the first relay. When the device is off, said switch is configured to activate the first and second relay to power up the device, and when said device is on, the first relay connects the switch to the processor as an enter switch. The switch may power off said device by entering a power off menu item displayed by said processor.

Abstract: The present invention comprises a unique starter assembly for a gas discharge lamp. The starter assembly comprises a main current path with a first leg connected to one electrode of a gas discharge lamp, and a second leg connected to a second electrode of the gas discharge lamp. A starting current path is provided between the first and second electrode, and comprises an magnetic switch. The magnetic switch is actuated by an electromagnet controlled by a control circuit. The control unit may be programmed with the start time required for a particular lamp design. In an alternative embodiment, the starter assembly further comprises a radio frequency identification system. The radio frequency identification system includes a gas discharge lamp transponder. The lamp transponder is used to communicate specific lamp information to the control circuit. The control circuit may then modify the start time for that lamp based on this information.

Abstract: An apparatus for controlling an electric switching device (1) for alternating current arranged in a current path for opening the switching device and for breaking the current in the current path after occurrence of a fault current comprises members (15) adapted to detect the current in the current path and a unit (20) adapted to control the electric switching device to break the current in the current path directly after a half wave of the alternating current having a peak value below a predetermined current limit value, so that the breaking is completed through a zero-crossing of the alternating current terminating a said half wave.

Abstract: A control apparatus for protected switching of a load encompasses at least two switch units in series with a load, to permit delivery of energy to a load when each switch unit is switched on and to block it when at least one of the switch units is shut off; an electronic control system for triggering each switch unit via a first switching path and second switching paths, and for monitoring its state; a delay element on the first switching path, such that each switch unit can be shut off both by way of a shutoff signal conveyed via the first switching path and by way of a shutoff signal conveyed via the second switching path; and in a state in which one of the switch units is shut off and the other is switched on, the electronic control system ascertains a malfunction of the first switching path if, after output of a shutoff signal on the first switching path, the other switch unit does not shut off within a predefined time window.

Abstract: A system for activating a load such as an exhaust fan within an enclosed area concurrently with the activation of a lamp switch and for continuing the operation of the load for a predetermined period of time after the deactivation of the lamp switch. A monitor detects when the lamp switch is activated and provides an output signal representative thereof. A timer is provided which is deactivated when the monitor output signal is present but functions when the lamp switch is deactivated and after a preset but variable time provides a signal for deactivating the load. The timer includes a pulse generator and a counter which receives the output of the pulse generator and counts pulses when the lamp switch is deactivated and provides the deactivation signal for the load when it reaches a predetermined count.

Abstract: A system and method for controlling a controlled parameter that affects a target parameter of a target zone is disclosed. The method comprises providing a feedback control loop having a switching controller, a controlled device, and an averaging device. The controlled device comprises a time constant and a specified operational characteristic. The controlled device comprises a first operational state and a second operational state. The method further comprises calculating a time constant for the averaging device based at least on the time constant for the controlled device, and the specified operational characteristic. The specified operational characteristic may comprises a minimum amount of time that the controlled device operates before it can be switched between the first operational state and the second operational state.

Abstract: An interleaved delay line for use in phase locked and delay locked loops is comprised of a first portion providing a variable amount of delay substantially independently of process, temperature and voltage (PVT) variations while a second portion, in series with the first portion, provides a variable amount of delay that substantially tracks changes in process, temperature, and voltage variations. By combining, or interleaving, the two types of delay, single and dual locked loops constructed using the present invention achieve a desired jitter performance under PVT variations, dynamically track the delay variations of one coarse tap without a large number of delay taps, and provide for quick and tight locking. Methods of operating delay lines and locked loops are also disclosed.

Abstract: A method and apparatus are provided for operating a flashlight using a light emitting diode as a primary light source. The method includes the steps of activating the light emitting diode as the primary light source of the flashlight under one of a plurality of different operating modes and selecting the operating mode using a momentary contact disposed on an outer surface of the flashlight. In the disclosed embodiments, the flashlight takes the form of a relatively small size, generally flat housing having metallic side panels that may be of various colors and have indicia printed on them. The housing has an integral keyring extension enabling an article to be attached to the flashlight or for the flashlight to be attached to other articles, such as the clothing of a user.

Abstract: A circuit arrangement for switching an inductive load (12, 12a-d) with connections to a power supply source (11, 11?, 11?) by means of which an exciter voltage can be applied to the inductive load (12, 12a-d) in a switched-on state is described, comprising switching means by means of which, depending on a control signal, a power circuit comprising the inductive load (12, 12a-d) and the power supply source connections, can be closed when switched from the switched-off to the switched-on state and opened when switched from the switched-on to the switched-off state, furthermore comprising a first diode (15, 15a-d, 15a?-c?, 15a?-c?) arranged in parallel with the inductive load (12, 12a-d) and so as to block in the switched-on state. This present invention is characterized in that an additional commutation inductance (18) is provided which is arranged in parallel with the inductive load (12, 12a-d) and in series with the first diode (15, 15a-d, 15a?-c?, 15a?-c?).

Abstract: A power switch control unit for controlling the operation of a controlled electric device connected to the unit includes a housing having a timing mechanism therein; a power cord having a plug on one end thereof, for connection to a power supply, and having the housing on the other end thereof, for supplying electrical power to the unit and to a connected-electric device controlled by the power switch control unit, and a receptacle for receiving a power cord from an electric device to be controlled by the power switch control unit; control buttons, including: an on/off button for connecting a controlled electric device to the power supply; a timer activation button for activating the timing mechanism, wherein, when the timing mechanism is activated, it connects a controlled electric device to the power supply for a predetermined amount of time in a timed cycle, and then disconnects the connected-electric device from the power supply; and a clear timer button for terminating the predetermined amount of time, a

Abstract: An operational check of the safety unit or the safety circuit takes place within the delay time of the relay, assigned to each motor, caused by the pick-up delay or the release delay. Also, the control unit can be equipped such with at least one safety component and/or safety circuit for controlling the control unit that an operational check of the control unit takes place between the operation of an operating element of the hand switch and the starting of the motor or motors. The operating time and the release time of the relay may be delayed by a suitable component so that sufficient time is available for the operational check.

Abstract: An HID single light emitting point lamp tube switching device is provided for switching the lamp tube between a far light position and a near light position. Initially, a strong current coil and a weak current coil are induced at the same time, so that the HID single light emitting point are moved to the second position, and at end of a time period set in the timer, the strong current coil will be interrupted so that only the weak current coil is actuated to maintain the HID single light emitting point in the second position.

Abstract: A power controller for the regulation of power consumption by gas pressurized vapor lamps includes a series of stages that steps down power being applied to the lamp without a significant loss of luminescence. Once the gas vapor has been heated to achieve luminescence, the power can be decreased based on several criteria including time, luminescence, and gas temperature. By removing the excess power being applied to the lamp, the same luminescence can be maintained using significantly less energy.

Abstract: An interleaved delay line for use in phase locked and delay locked loops is comprised of a first portion providing a variable amount of delay substantially independently of process, temperature and voltage (PVT) variations while a second portion, in series with the first portion, provides a variable amount of delay that substantially tracks changes in process, temperature, and voltage variations. By combining, or interleaving, the two types of delay, single and dual locked loops constructed using the present invention achieve a desired jitter performance under PVT variations, dynamically track the delay variations of one coarse tap without a large number of delay taps, and provide for quick and tight locking. Methods of operating delay lines and locked loops are also disclosed.

Abstract: An electronic circuit for use with an exhaustible power source and load such as a light bulb, a radio or motor, includes a microchip with an input that transmits a signal to the microchip when the load is activated or deactivated. The input does not form a serial link between the power source and the load. The power switch, by on/off switching, controls energy flow from the power source to the load. The electronic circuit has an automatic delayed shut-off function for the load and, a find-in-the-dark indicator and a power source level indicator which are active when the load is not energized and the power source is not being charged. The input to the microchip acts as an activation/deactivation user interface. The microchip allows the user to select specific functions based on the time duration of activation signals, the time duration between activation signals and the number of activation signals at the input.

Abstract: The invention relates to a method for overload-free driving of an actuator, in which an activation counter is incremented or decremented each time an activation request signal occurs, in which, depending on each occurrence of an activation request signal, a drive signal for the actuator is generated if the counter reading of the activation counter is less than or greater than a predetermined maximum or minimum counter reading, in which the counter reading is in each case decremented or incremented if the time since the last generation of a drive signal or since the deactivation of the drive signal is greater than or equal to a predetermined or predeterminable interval time or if the time since the last decrementing of the activation counter is greater than or equal to the interval time.

Abstract: A system for control of electrical devices is provided. An adapter is provided having an electrical power interface for connecting to an electrical power supply, a switch to complete or break an electrical power circuit, a timer module operable to receive and maintain time information and timing instructions associated with criteria for completing or breaking the electrical power circuit, and a programming interface for receiving the time information and timing instructions from a programming module. In use, a user modifies the time information and/or one or more timing instructions via the programming module, connects the programming module to the adapter for communication of the modified time information and/or timing instructions and disconnects the programming module from the adapter, the adapter remaining operable to complete or break the electrical power circuit to which an electrical device is connected even after the disconnection of the programming module.

Abstract: A management apparatus for allowing a parent to limit the amount of time a specific user is allowed access to an electronic device. The management apparatus includes an enclosure that has an interior space. A controller for processing a plurality of electronic operations is positioned in the interior space. An alphanumeric display displays information and is attached to the front side of the enclosure. A keypad for inputting numerical data is attached to the front side of the enclosure. A modem positioned in the interior space of the enclosure. A phone jack is attached to the second side of the enclosure. A power cord is attached to the second side of the enclosure. A plurality of receptacles allows coupling of electrical cords from electrical devices. A cover member covers the first end of the enclosure and is releasably attachable to the first end by a plurality of fasteners.

Abstract: A power supply disabler that can be retrofitted to a battery-operated device includes a resettable timer, a switch and a pair of electrodes, all of which are fitted in a thin profile case. The case is configures to fit between a pair of series-connected batteries while the batteries are installed in the battery-operated device. When the battery-operated device is turned on, the switch is closed and the timer is reset and started so that power saving device provides a conductive path between the batteries. After a predetermined time period, the timer causes the switch to open-circuit the conductive path, thereby disabling the power supply. Thus, the power supply is prevented from supplying power to the battery-operated device. The timer is reset when the battery-operated device is subsequently turned on for the next use.

Abstract: A concise electronic timer is composed of an adjustable resistor, a supercapacitor and an electromagnetic relay. After a main power is turned off, electricity supplied from the capacitor to the relay will extend or actuate the operation of a load until the discharge of the capacitor is over. Incorporating the resistor with the other two elements, the discharge time of the capacitor can be altered linearly by the resistor, therefore, a linear arrangement of delay extension and time of activation is attained. The simple, compact and economical timer can be used for indoor and outdoor illumination, monitoring security systems, as well as actuating systems.

Abstract: Method and device for controlling an auxiliary unit (10) in a motor vehicle by means of a device consisting of a control unit (40) and a switch (30) for switching the auxiliary unit on and off. To ensure the maintenance of an auxiliary unit of this type and to prolong its life using simple means, it is proposed, among other things, that the control unit (40) will repeatedly signal actions to be taken to a driver of the vehicle or directly to the switch. A first action is the switch-on of the switched-off auxiliary unit (10) at a specific point in time if it (the unit) has been switched off for a long period of at least some weeks. A second, succeeding action is the switch-off of the unit (10) switched on in the manner described, after a short period of at least some minutes.

Abstract: A power control circuit with a power off time delay circuit for controlling an AC power supply to a microprocessor-based system is disclosed. The control circuit includes a relay, a switch unit, a DC power supply unit, a manually operable switch, and a time delay control circuit. The time delay control circuit is capable of controlling a turn-on and a delayed turn-off of the switch unit depending on the status of a DC operating voltage. When the manually operable switch is turned on, the AC power supply is supplied to the microprocessor-based system in a normal condition. When the manually operable switch is turned off, the AC power supply is still maintained to the microprocessor-based system for a predetermined delay time.

Abstract: A timer for a microwave oven includes an actuating lever operating auxiliary power switch when pushed by a power control cam installed in a timer casing. A pushing unit is installed adjacent to the power control cam to move the power control cam up and down and pushes the power control cam so as to disconnect the actuating lever from the power control cam and hold the power switch on when a power level of the microwave oven is set to a maximum using a power control shaft. The pushing unit has a shaft part extending toward an intermediate gear disposed between the power contact shaft and the power cam. A compressing projection is provided on the intermediate gear pushing the shaft part of the pushing unit to move the power control cam.

Abstract: A power control circuit with a power off time delay circuit for controlling an AC power supply to a microprocessor-based system is disclosed. The control circuit includes a relay, a switch unit, a DC power supply unit, a manually operable switch, and a time delay control circuit. The time delay control circuit is capable of controlling a turn-on and a delayed turn-off of the switch unit depending on the status of a DC operating voltage. When the manually operable switch is turned on, the AC power supply is supplied to the microprocessor-based system in a normal condition. When the manually operable switch is turned off, the AC power supply is still maintained to the microprocessor-based system for a predetermined delay time.

Abstract: A circuit for suppressing electrical arcing in an ion beam source or other plasma devices is provided. The arc suppression circuit of this invention detects current rises on ion beam source grids which cause arcing, disconnects the current flowing to the grid, and grounds the ion beam source to allow excess charge and current to be drained from the ion beam source rather than letting the charge and current arc on the grids of the ion beam source. A novel timing sequence is used for activating and deactivating the arc suppression circuitry to prevent shorting out of the power source. The arc suppressor circuits of this invention can be used on devices other than ion beam sources or plasma devices.

Abstract: A concise electronic timer is composed of an adjustable resistor, a supercapacitor and an electromagnetic relay. After a main power is turned off, electricity supplied from the capacitor to the relay will extend or actuate the operation of a load until the discharge of the capacitor is over. Incorporating the resistor with the other two elements, the discharge time of the capacitor can be altered linearly by the resistor, therefore, a linear arrangement of delay extension and time of activation is attained. The simple, compact and economical timer can be used for indoor and outdoor illumination, monitoring security systems, as well as actuating systems.

Abstract: An underwater electromechanical timer comprises a motor-driven timer assembly which includes a threaded member that engages an endless screw driven in rotation by means of a motor. Time programming of the timer is accomplished via presetting a length of sliding of the threaded member along the endless screw. The sliding threaded member causes a timely switching event of a device switch placed in the casing structure. The device switch, electrically connected to an external device, thereby activates the external device. The underwater electromechanical timer is activated via an activation mechanism that is externally exposed. Under an external pressure, the activation mechanism connects an output of the motor with the endless screw, and further turns on the motor. Resilient elements are further mounted between the motor and the endless screw and between the threaded member and the device switch to prevent undesired activation events.

Abstract: A locking timer assembly for controlling access time for a television, video game, or computer, employs a lockable enclosure box that attaches onto a wall outlet in place of the usual face plate. The volume inside the box encloses a standard 24-hour on-off timer. The box attaches to the outlet by the usual single screw. The cordset for the controlled device plugs into the timer, and then the cord exits the enclosure via a passage, such as a slit, but the slit does not permit passage of the plug. As an added safety feature, there can be a quick-disconnect plunger so that the timer device can be forced out (e.g., by wedge action) from the associated wall outlet. The plunger has a head portion extending outside the enclosure, and can be pushed in using the fingers. Once this is done, the timer cannot be plugged back in until the enclosure is unlocked and opened.

Abstract: A method and apparatus for hot swapping and bus extension without data corruption. During the hot swapping of a circuit board in a bus, the bus is extended onto or retracted from the circuit board in a manner which does not corrupt the data on the bus. The extension or retraction of the bus is detected and a bus reset is asserted interrupting and preventing transactions on the bus. The bus reset is asserted for a minimum amount of time to allow the bus to stabilize after the hot swap. A bus extension/retraction detection component and a bus reset component perform these functions.

Abstract: Electrical timer modules that interact with one another so as to effect random operation of a plurality of electrical devices, creating the appearance that the devices are not operated automatically. The timer modules include circuitry that allows them to wake up from a sleep state or mode within a random time interval. Upon waking from the sleep state or mode, each modular timer initially senses for the presence of a transmitted signal. Upon receipt of a transmitted signal each module returns to its sleep state or mode. If no transmitted signal is received, the first timer module that wakes up transmits a signal to the other modules and activates an electrical device connected thereto.

Abstract: The present invention provides a timed electrical outlet strip or timed power supply. An outlet bar unit has a plurality of plug opening sets or receptacles for receiving a plug-in portion of an electrical plug-in component. Power is uniquely supplied to the outlet bar through a controller unit. The control unit has its own control power component. The power supply is time controlled to provide a clearly displayed and easily set time period when the outlet bar is activated. A clock is set to display real-time and to provide a reference signal for setting the activation period of the outlet strip. Activation times can be accurately set to the nearest minute or less. Times are display in the conventional twelve hour increments and time set portions may include different colors for the morning (AM) hours compared with the afternoon (PM) hours. Overload protection and an on-off switch is also provided. A continuous power supply is provided by setting the activation period equal to zero.

Abstract: The present invention is a load balancing and distributing switch-on/turn-on control for a circuit breaker, an appliance, a device, or an apparatus wherein each switch-on device on a circuit breaker, appliance, device, or apparatus generates and provides a turn-on time delay up to a maximum turn-on time delay so that the turn-on times and respective loads after a power failure from all circuit breakers, appliances, devices, and/or apparatuses are distributed and/or balanced over a turn-on period. The present invention distributes and balances the load and consumption by various appliances, devices, and apparatuses at the time of initial power up after a power failure. The present invention also distributes the turn-on times of the various appliances, devices, and apparatuses at the initial power up time. A circuit system and method for load balancing and distributing switch-on control of an operating device.

Abstract: A method to manage power to a device includes receiving a first power-off request signal, initiating a predetermined delay period, and canceling the first power-off request if a second power-off request signal is received before expiration of the predetermined delay period. If a second power-off request signal is not received before expiration of the predetermined delay period, a signal to cause the device to power down may be generated. A device to perform the method and a system including such a power control device are also described.

Abstract: A timer-thermal shutoff apparatus can control and protect an electrical appliance. The timer-thermal shutoff apparatus comprises a housing; male connector extending from the housing; female receptacle to receive a male connector from one or more electrical appliances; timer device; and thermal safety device. The timer device and thermal safety device are connected in series with the male connector and female connector receptacle to form a current path. The electrical appliance is in series with the timer device and thermal safety device. The timer device can control off-on switching and cycles for the electrical apparatus connected to the timer-thermal shutoff apparatus, and the thermal safety device providing thermal overload protection if at least one of the timer-thermal shutoff apparatus and electrical appliance reach a temperature so the thermal safety device opens the current path to protect at least one of the timer-thermal shutoff apparatus and electrical appliance.

Abstract: A protection apparatus includes a monostable timer circuit and a NAND logic driver circuit, and ensures that transition of a power supply of an electronic device from an inactive state to an active state occurs only after a predetermined time period has elapsed from a previous transition of the power supply from the active state to the inactive state.

Abstract: Electrical timer modules that interact with one another so as to effect random operation of a plurality of electrical devices, creating the appearance that the devices are not operated automatically. The timer modules include circuitry that allows them to wake up from a sleep state or mode within a random time interval. Upon waking from the sleep state or mode, each modular timer initially senses for the presence of a transmitted signal. Upon receipt of a transmitted signal each module returns to its sleep state or mode. If no transmitted signal is received, the first timer module that wakes up transmits a signal to the other modules and activates an electrical device connected thereto.

Abstract: A circuit arrangement for signal coupling between circuit parts having supply lines isolated from one another wherein a) the circuit arrangement comprises a first circuit part (1) and at least one further circuit part (2), the first circuit part (1) being connected to a first supply line (3) having a first ground potential (GND1), and the other circuit part(s) (2) being connected to a supply line (4) which is different than the first supply line (3) and has an associated second ground potential (GND2), the supply line (4) or the associated line for the ground potential (GND2) being able to be connected and disconnected at least in one of these further circuit parts (2), b) there are one or more signal paths (6, 7, 8, 9) between the first circuit part and the other circuit part(s), each of these signal paths (6, 7, 8, 9) containing a coupling capacitor (11, 12, 13, 14) for capacitively transmitting useful signals (N1, N2, N3, N4) between the first circuit part and the other circuit part(s), c) each circuit

Abstract: Disclosed is a chassis comprising an enclosure, a power supply assembly mounted in the enclosure and a backplane assembly mounted in the enclosure in abutting relationship with the power supply assembly; the backplane assembly having a plurality component connectors mounted thereon and a plurality of stand-off posts protruding therefrom, each of the stand-off posts including a first aperture and being electrically coupled to one of the component connectors; the power supply including a panel with a plurality of electrical contacts disposed thereon, each of the electrical contacts having a second aperture; and a plurality of screws disposed through the first and second apertures for securing the electrical contacts of the power supply to the stand-off posts of the backplane assembly.

Abstract: After a vehicle has entered a sleep mode, the disclosed method places the vehicle monitoring system into longer and longer nap periods provided the monitoring system does not receive a wake-up signal from one of a plurality of vehicle subsystems. During the nap periods, the monitoring system requires a reduced amount of operating power thereby decreasing the parasitic current drain on the battery during the sleep mode.

Abstract: In a computer system in which adapter cards can be “hot plugged” into an I/O bus connector, a serially connected resistor and “voltage feedback” switch is coupled between the power supply pin of each I/O connector and the power supply input port that regulates the voltage at the output port of the power supply. Another resistor, which has a resistance greater than each of the resistors coupled to the I/O connectors, is connected between the input and output ports of the power supply to provide voltage feedback to regulate the output voltage of the power supply in the event that power to all of the I/O connectors is switched OFF. The power to an individual I/O connector is turned OFF before an adapter card is plugged into or removed from an I/O connector, and the power is turned ON immediately after the card is plugged into the connector.

Abstract: A multiple timer device includes a DC power supply circuit, a central processing unit, a slide switch, a function key set, and a liquid crystal multiple display. The slide switch serves to select an operating mode according to settings programmed by pressing the function keys, so that the central processing unit will activate the electromagnetic switch at preprogrammed times, which in turn will connect the AC power source with an output socket. The liquid crystal multiple display is composed of a digital display and a clock hand display. Arranged in a circle around the clock hand display are a plurality of display timing areas for digitally displaying, in relation to the clock hands, the programmed starting times.

Abstract: A temperature controller for electric cooking appliances includes a activating button movably provided on an outer surface and a temperature controller fixed inside an electric cooking appliance. The temperature controller has a shaft and a gear fixed on an end of the shaft. The activating button has a connect member extending in the electric cooking appliance, and a base connected to the connect member, which has a rack formed under an upper wall to engage the gear. The rack has a width at least equal to the linear moving distance of the shaft. Then the activating button is moved rightward and leftward, letting the base with the rack move also so that the gear is rotated by the rack, with the shaft rotating to move forward or backward so as to set the wide range of temperature with many stages to be got for heating the electric cooking appliance.

Abstract: An apparatus for sending a plurality of switching signals to a switching device for sequentially switching the position of an injection gate of a injection molding machine is provided. The apparatus is utilized for molding a work piece in a mold during a molding cycle from a first closed position, to a first open position, to second closed position, to a second open position and then to a third closed position. The switching signals are indicative of one of the open position and the closed position. The apparatus is to be hand carried by a machine operator. The apparatus includes a body. The body is hand carriable by a machine operator. The apparatus also includes a first input conduit and a second input conduit. The first input conduit is operably associated with the body for receiving a first switching signal indicative of a desire to switch the position of the injection gate.

Abstract: Improved overflow protection for washing machines and other applications in which a liquid from a controllable valve fills a tub is achieved by a circuit in which a single pulse train generated cooperatively by a pressure sensor and a controller is monitored by a lockout timer. If an interruption in the train of pulses occurs that is longer than a predetermined time-out period indicating a failure of either the pressure sensor or the controller that would otherwise prevent the valve from shutting off the flow of liquid into the tub, the lockout timer will cause the valve to turn off. The controller is also able to override the lockout timer and cause a relay to shut off power to the controllable valve to force it off if the pressure sensor detects a continued rise in liquid level after the controller has signalled the controllable valve to shut off.

Abstract: An in-wall mounted electric timer comprising a housing for mounting in an electric box in a wall. The electric timer comprises a user interface on the housing. The user-interface comprises an input panel and a display. The electric timer further includes a movable cover panel covering the user interface. The cover panel has a rearward extending post aligned with the input panel to operate the input panel by moving action of the cover panel, wherein at least a portion of the cover panel is transparent enabling observation of the display through the cover panel.