730 results about "Pilot light" patented technology

A combination of a patient core temperature sensor and the dual-wavelength optical sensors in an ear probe or a body surface probe improves performance and allows for accurate computation of various vital signs from the photo-plethysmographic signal, such as arterial blood oxygenation (pulse oximetry), blood pressure, and others. A core body temperature is measured by two sensors, where the first contact sensor positioned on a resilient ear plug and the second sensor is on the external portion of the probe. The ear plug changes it's geometry after being inserted into an ear canal and compress both the first temperature sensor and the optical assembly against ear canal walls. The second temperature sensor provides a reference signal to a heater that is warmed up close to the body core temperature. The heater is connected to a common heat equalizer for the temperature sensor and the pulse oximeter. Temperature of the heat equalizer enhances the tissue perfusion to improve the optical sensors response. A pilot light is conducted to the ear canal via a contact illuminator, while a light transparent ear plug conducts the reflected lights back to the light detector.

An electrically operated scented wax holder that forms a receptacle for receiving unmelted blocks of wax which are heated to the melting point and thereafter maintained at a safe temperature by a temperature-regulated electrical heating element. The wax receptacle is removable mounted on a base section that houses a positive temperature coefficient (PTC) thermistor which has a transition temperature substantially higher than the melting point of the wax to insure that the wax is rapidly melted, but substantially below the temperature that would constitute a danger to a human who might touch the exterior surface of the warmer, or constitute a fire hazard. The heating element is preferably placed in thermal contact with a contact pad having high thermal conductivity that is in turn placed closely adjacent to the wax receptacle, thereby efficiently transferring heat from the electrically operated temperature regulated heating element to the wax in the receptacle. A switch is positioned to de-energize the heating element whenever the wax receptacle is removed from the base section, and a visible pilot light is illuminated whenever the heating element is energized.

A compact and multi-functional power monitoring and circuit protection system is provided that is easily installed, used and modified, and internally derives all control and output power from the input voltages being monitored for abnormal power conditions. The functionality of all desired power monitoring and sensing devices is integrated into one unit controlled by a microprocessor. This substantially reduces the number of parts and control wiring required to achieve adequate power monitoring and circuit protection, and reduces the assembly and installation time. The integrated system uses only one set of voltage input wires, one set of current input wires, one set of blown fuse input wires and one output pair of wires to the power disconnect switch's shunt trip. Circuitry is provided to select one of the three power phases being monitored such that one of the three phases is always available to power the system. Control voltages for controlling the shunt trip and external circuits using output relays (to illuminate pilot lights, bell alarms, etc.) are also provided onboard the unit. A blown fuse detection circuit uses solid-state devices in lieu of replaceable trigger fuses. The unit can be instantly reset itself after a blown fuse condition in a power disconnect switch has been rectified.

The invention relates to a self-adaptive damage compensation method and system for a digital-related optical communication system. The self-adaptive damage compensation method includes inserting two pulse modulation pilot frequency signals symmetrically distributed on an input signal frequency fc (fiber channel) at a transmitting terminal; acquiring an input signal power spectrum by the Fourier transform at a receiving terminal, and receiving the pilot frequency signals of a signal power spectrum and subjecting the pilot frequency signals to location and filtering extraction; calculating size of frequency offset of a vibration laser and performing compensation by a pilot frequency; acquiring pilot time domain waveforms by the Fourier transform and calculating a delay delta tau between two pilot light pulses, and calculating size of dispersion by the delta tau and performing the compensation; finally extracting pilot phase noises and subtracting the same from a signal phase so as to eliminate laser phase noises and nonlinear fiber damages. The self-adaptive damage compensation method has the advantages of high accuracy, low complexity, small occupation of bandwidth and fast response speed, so that self-adaptive compensation of various damages can be realized.

Automatic water faucet in accordance with the present invention comprises main body is formed with outlet and hot and cold water inlets; hot and cold water flow control valve is built in the upper part of main body and selects and controls hot and cold water flow rate; control handle for adjustment of hot and cold water flow control valve; object detector device is installed in front of main body and comprises light generator and receiver, operation indicator lamp, circuit board; electronic valve is installed and connected to the bottom of hot and cold water flow control valve automatically opens or closes outlet in accordance with the detector signal of object detector part; battery power supply supplies power to object detector part and electronic valve; and manual emergency lever is installed on the bottom of main body to be able to be rotated to enforce operation of electronic valve manually.

The self-illuminating extension cord consists of an extension cord including a plurality of lights adorning the exterior of said cord in a spiraling pattern that runs the entire length of the extension cord. The extension cord includes a male plug at a first end and a female plug at a second end. The lights provide an illuminating feature that alerts to the presence of said cord in poorly lit environments. An alternative embodiment further includes upon the male plug or female plug, a breaker, a pilot light, and a switch for turning the lights on or off. A third embodiment includes a translucent outer cover protecting both the plurality of lights and the extension cord.

The invention provides a surging predicted control apparatus and control method for marine diesel engine turbine supercharger. The apparatus comprises a pressure sensor, a speed sensor, a V/F modular converter, a frequency meter, an A/D modular converter, a power module, a surging predicted control unit and an air circulating device, an exhaust gas diffluence apparatus, a data storage and alarm indicator. When controlling, at first rotate speed feeding back by the sensor and fluctuation frequency of the turbine supercharger outlet pressure are received, fluctuation frequencies of the outlet pressure and the peak-peak value fluctuation conditions corresponding under each rotate speed obtained by pretest and measured by fact carry out contrast analysis; If surging foreboding is provided in the analytical result and is prevented by controlling air circulating device; if without surging foreboding, the air circulating device is not operated, the supercharger works normally. The invention can greatly reduce occurrence frequency of supercharger surging incident during working in the marine diesel engine to avoid grave accident.

The invention discloses a rapid three-dimensional super-resolution microscopic method. The method comprises that a laser beam is converted into linearly polarized light after being collimated, phase modulation is carried out on the linearly polarized light, the linearly polarized light is converted into circularly polarized light, the circularly polarized light is projected to a sample to be measured, and pilot light emitted by scanning points of the sample to be measured is collected; and 3D scanning is carried out on the sample. Phase modulation comprises primary phase modulation and secondary phase modulation, a spatial light modulator which modulates the phase of an s light component of the linearly polarized light is used in the primary phase modulation, a spatial light modulator which modulates the phase of a p light component of the linearly polarized light is used in the secondary phase modulation, and a 3D super-resolution image is obtained according to the effective pilot light intensity. The invention also discloses a rapid 3D super-resolution microscopic device. According to the invention, optical power is lower, the photobleaching effect is weakened, 3D imaging is rapid, the device is simple, and light splitting is not needed.

The invention relates to a gas valve with the working state indicting function. The gas valve comprises a valve body, and a valve rod which passes through the valve body; a knob is mounted on the valve rod. The gas valve is characterized in that a circuit board with an LED lamp and a bracket prepared from a nonconductive material are fixed on the valve body; a metal conductive ring is fixed on the lower end surface of the bracket; a conductive sheet which can rotate together with the valve rod sleeves the valve rod; a lug which laterally protrudes is arranged at the side part of the conductive sheet; a through hole through which the conductive sheet passes is formed in the bracket; an opening through which the lug passes is formed in the circumferential wall of the through hole; the lug is aligned to the opening when the valve rod is in the primary state; the lug is staggered to the opening in the whole working state of the valve from downward pressing to deflect; the lug is located below the lower end surface of the bracket and is in conduction contact with the metal conductive ring all the time. According to the gas valve with the working state indicating function, the conductive sheet and the metal conductive ring are in contact or disconnected to control the LED lamp to be on or off; when in use after ignition of the gas valve, an indicator light is on all the time to remind of that a gas appliance is in a working state.

A combustion burner assembly having low oxides of nitrogen emission includes a mixing section having an air inlet, a fuel inlet and a fuel mixture outlet. Air is tangentially supplied to the mixing section through the air inlet. A pocket portion in the mixing section receives fuel from a fuel inlet. A plurality of holes in the pocket portion transfer fuel to the mixing section to form a fuel mixture with the air in the mixing section. A diffuser is disposed within the mixing section adjacent the fuel mixture outlet. The diffuser has a plurality of overlapping vanes disposed around an aperture that form a plurality of passages between each of the plurality of overlapping vanes through which the fuel mixture exits the mixing section. A pilot assembly is substantially disposed within the mixing section and passes through the aperture in the diffuser. The pilot assembly is adapted to produce a pilot light downstream of the diffuser that ignites the exiting fuel mixture to produce a high swirling flame, thereby resulting in a combustion burner assembly having low oxides of nitrogen emission.

The invention discloses a gas stove which comprises at least one of a gas leakage detection and voice alarm device, a low-electric-quantity voice reminding device, an accidental flameout detection and alarm device, a normal flame taking-off voice reminding device, a dry burning preventing voice reminding device and an ignition failure voice reminding device. The devices are electrically connected with a controller (201) and a voice reminding device (500). The voice reminding device comprises a voice chip (1) and a loudspeaker (2). The voice chip receives a function reminding signal sent by the controller and then drives the loudspeaker to give a reminding voice corresponding to the function reminding signal. According to the gas stove, additional voice reminding can be carried out, and therefore a user can rapidly and visually obtain information to treat the situation at once. Voice reminding for accidental flameout, normal flame taking-off, ignition failure and other more functions can be added, and great convenience is brought to the user; and meanwhile due to indication lamp reminding, remote reminding and the like, the user can obtain instant information even though being far away from the gas stove and then carries out emergency treatment.

The invention relates to a cold start system and start method for a flexible fuel vehicle. The cold start system comprises an engine control unit, a fuel system and a fuel oil preheating module. The fuel oil preheating module comprises a water temperature sensor, a preheating indicator light, a power output module and a heating type oil sprayer. When a start switch is turned on, the preheating indicator light is firstly lightened, the water temperature sensor transmits a cooling water temperature signal to the engine control unit, the engine control unit calculates a duty ratio signal and judges whether the power output module needs to output power or not, the power output module outputs a current to the heating type oil sprayer, and the heating type oil sprayer heats ethanol fuel and feeds back a temperature signal of the heating type oil sprayer to the engine control unit at the same time so as to judge the preheating finish time.

The invention relates to the field of garage parking space intelligent management, and specifically relates to a garage guide system and method. The system comprises a speed measurement sensor, a positioning device, a storage unit, a processor module, an output/input end, an adjustment control module, a guide lamp strip, and a parking space indicating lamp. The speed measurement sensor, the positioning device and the guide lamp strip are all disposed on a lane. The parking space indicating lamp is disposed on a parking space. The speed measurement sensor, the positioning device and the storage unit are respectively connected with the processor module. The guide lamp strip and the parking space indicating lamp are connected with the processor module through the adjustment control module. The processor module is connected with a parking lot management system and a control system of garage equipment through the output/input end. The system carries out the corresponding mechanical parking space operation while carrying out the light guide for a vehicle, and achieves the proper operation. After the vehicle arrives at a specified parking space, a driver can directly park the vehicle without waiting, thereby improving the parking efficiency.

The invention relates to a novel unmanned aerial vehicle for garden irrigation. The novel unmanned aerial vehicle comprises a body, an irrigation mechanism, a flying mechanism arranged on the body and a supporting mechanism arranged under the body, wherein a plurality of pilot lights are arranged on the body. According to the novel unmanned aerial vehicle for garden irrigation, air is sprayed downwards through a micro air pump to generate an upward impulse, so that the falling speed of the unmanned aerial vehicle is reduced; the size of the upward impulse is changed through an adjusting unit, and the angle of the unmanned aerial vehicle is changed so that the unmanned aerial vehicle keeps balance, and the situation that the unmanned aerial vehicle safely and stably lands is guaranteed. Besides, in an infrared receiving circuit, an output filter capacitance end of a first integrated circuit is earthed through a second capacitor, a low-pass filter capacitance end of the first integrated electric circuit is earthed through a third capacitor, and an output filter network and a loop single-stage low-pass filter network are formed, so that the reliability of the infrared receiving circuit is improved.

An improved flare burner for burning combustible gases in petroleum and petrochemical installations. A cylindrical shell has a closed bottom and an open top. A central opening in the bottom is connectable to a source of the gas to be burned. A plurality of linear steam/gas tubes is disposed within the shell, each tube extending to the open end of the shell and also extending through the shell bottom. A lower steam distribution sub-assembly below the shell bottom includes individual steam jets adjacent the ends of the tubes for educting air to the upper end of the tube. A pilot gas sub-assembly for igniting the flare gas is disposed within the shell. Gas to be burned is passed into the interior of the shell through the bottom opening and moves to the open end. Steam injected into the steam/air tubes educts air, and air and steam exit the tubes and mix with the gas to create a combustible mixture. The pilot light assembly provides an open flame which ignites the mixture. The upper end of the shell is reinforced by a rolled collar. An upper steam distribution subassembly within the collar includes a manifold and jets extending beyond the collar to provide additional air and steam for combustion and prevent fires from overflowing the burner and becoming attached to the outside surface of the shell.

A gas valve includes a gas inlet in fluid communication with a first chamber, a second chamber in selective fluid communication with the first chamber, a gas outlet in selective fluid communication with the second chamber, a pilot light outlet in fluid communication with the second chamber, and a bypass channel in fluid communication with the second chamber and in fluid communication with the first chamber. The bypass channel limits bypass gas flow to an amount that is insufficient to ignite a pilot flame at the pilot light outlet when the second channel is in fluid communication with the gas outlet.

A gas circuit with a pilot light system for ranges includes pilot tubes from a gas manifold to burner assemblies. Quick connect couplings are provided between the pilot tubes and manifold so that the pilot tube can be removed easily. Two or more tubes can be connected to a single coupling. A master shutoff interrupts flow to the cooktop without interrupting flow to the oven.

The invention relates to an underground people positioning and bidirectional paging communication method for a mine and a special mine lamp and belongs to the technical field of mine safety and mine lamps. The technical scheme is as follows: a storage battery pack comprises a storage battery (7), a mine lamp shell upper cover (6), a mine lamp protector (5) and a people positioning card circuit board (4); a main light source (8) is arranged on a lamp cap component; an indication lamp (11) and a distress switch (12) are arranged on the people positioning card circuit board; and the twinkling of the main light source and the shining or twinkling in different colors of the indication lamp are combined together to form various types of paging instruction information, so that bidirectional paging communication is realized. The special mine lamp has a bidirectional paging communication function for supplying a basic communication measure to each miner besides the functions of lighting and positioning people; in a disaster, the miner gets an evacuating command through the mine lamp and evacuates from a disaster dangerous region timely, and casualties can be reduced; and under an emergency condition, the miner can also send a distress signal to a command center so as to facilitate the rescue, thus having a great significance for safety production of coal mine industries.

A water heater is controlled by an electronic system that initiates the operation of the heater when a flow detector sends a demand signal for hot water flow to the electronic card, which ignites a burner as function of a temperature programmed by the user. The burner is lit gradually by an electrical spark emitted by a spark plug connected to the electronic card, which in turn controls gas feed to the burner. As soon as the burner is lit, the electric current generated by the first spark plug is transformed by the ionization effect, changing the polarization of the current, which is detected by another spark plug that emits the change signal to the electronic card for further control of the heater. The heater operates without a permanently lit pilot light.

The invention is directed to a portable stacking gas grill that can be stacked for ease of transportation and storage. The grill includes a firebox, a at least one cooking grate, a plurality of burners, at least one radiant guard unit, at least one pilot light system, a shelf and a pair of folding legs. The grill is designed so that it can be tilted onto its side to allow the legs to be folded into a recess beneath the firebox without the cook top, burners and radiant guard unit moving out of position. The pilot light system includes a pilot runner tube that allows individual burners to be turned on and off with out the need for an outside ignition source. The firebox is designed so that several grills can be stacked so that the space needed for storage and transportation is greatly reduced.