Bizarre Patents
Mouthguard made at least partially from an edible candy
A mouthguard includes a U-shaped upper bite plate which removably fits over upper teeth of a person, with the entire upper bite plate being made from a soft, deformable and edible gummi candy.
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| Number | Title | Issue Date |
| 7492269 | Self diagonostic flame ignitor Techniques for monitoring operation of a flame ignitor are provided. In one embodiment, multiple inputs are received. The inputs are received from at least one of a first group of inputs and a second group of inputs. The first group includes a flame rod voltage, a s... | 02/17/2009 |
| 7344373 | Control method for gas burners The invention relates to a control method for gas burners for providing a gas-air mixture. According to the invention, the ionization signal is only used for setting the mixing ratio dependent on the gas quality when the burner flame completely sweeps over th... | 03/18/2008 |
| 7289032 | Intelligent flame scanner Techniques for determining a characteristic of a flame are provided by the present invention. Provided are methods as well as devices. A flame is monitored across a contiguous spectral range to detect light emitted by the monitored flame. The contiguous spectral ran... | 10/30/2007 |
| 7280891 | Signal processing technique for improved flame scanner discrimination A signal processing technique that allows the flame signal from a first source of flame and the flame signal from a second source of flame to be discriminated from each other when only both the first and second flame signals are viewed by the same flame scanner. The... | 10/09/2007 |
| 7242310 | Control techniques for shut-off sensors in fuel-fired heating appliances In a flammable vapor sensor-based shut-off system of a fuel-fired water heater the sensor resistance output signal degradation caused by aging of the sensor is automatically compensated for using an operational timer having an output signal indicative of the total l... | 07/10/2007 |
| 7008217 | Safety device for boiler comprising a time delay protected by an electronic circuit A safety device for an industrial boiler (CHA) including electromechanical relays (REn, RS), which are connected in series in order to form an electromechanical safety chain (CH1), and at least one shunt relay (RTn) which is normally ope... | 03/07/2006 |
| 7008218 | Combustion emission estimation with flame sensing system There is described a method and apparatus for controlling the combustion by-product formation rate in at least one burner of a fossil fuel fired power plant. The burner has an associated flame scanner which is focused on a small area of the burner flame to obtain an... | 03/07/2006 |
| 7002478 | Smoke and flame detection A method of operating a computer for smoke and flame detection comprising the steps of: receiving digitised images of the region to be monitored; comparing pixels of one of said images with pixels of another said image according to two predetermined procedures to pr... | 02/21/2006 |
| 6923640 | Flame burner ignition system An ignition system includes a burner, a power supply, an electrical system including a ground conductor, and an ignition module. The ignition module includes a first input, a second input, and an output. The output is operatively coupled to the burner, while one of ... | 08/02/2005 |
| 6887069 | Real-time combustion controls and diagnostics sensors (CCADS) The present invention is directed to an apparatus for the monitoring of the combustion process within a combustion system. The apparatus comprises; a combustion system, a means for supplying fuel and an oxidizer, a device for igniting the fuel and oxidizer in order ... | 05/03/2005 |
| 6828913 | Scattered light smoke alarm A dispersion light smoke detector has a structure for providing a definite measuring volume, the structure being formed as two light receivers or an imaging optical system for one light receiver. ... | 12/07/2004 |
| 6783355 | Method for operating a gas burner According to the invention, the ionization signal is detected at a first point of time during full-load operation and during partial-load operation, and for this first point of time a first difference is formed between the ionization signal during full-load operatio... | 08/31/2004 |
| 6700495 | Flame monitor for an oil- and gas-operated burner The invention relates to a flame monitor for an oil- or gas-operated burner, having a photosensor which detects the optical flame radiation and an evaluation circuit which is connected downstream of said photosensor and ascertains whether the radiation re... | 03/02/2004 |
| 6676404 | Measuring device for a flame A flame measuring device, in particular for use in a regulating device for a burner, includes an ionization electrode which is arranged in a flame region of the burner. An ac voltage is applied to the ionization electrode whereby a dc voltage component is... | 01/13/2004 |
| 6509838 | Constant current flame ionization circuit In a flame ionization sensor type gas combustion control apparatus, the sensor is provided with a power supply which will increase the voltage as contamination build up occurs on the in-flame sensor electrode thereby keeping a constant sensor current and ... | 01/21/2003 |
| 6417772 | Life safety system with energy saving visual alarm appliance and method A life safety system with a micro-controller that is programmed to operate both a visual signal and an audible signal. One feature of the system is that a user is permitted to enter a temporal signaling mode for not only the audible signal, but also the v... | 07/09/2002 |
| 6362743 | Smoke alarm with dual sensing technologies and dual power sources A smoke alarm having both an ionization detector and a photoelectric detector coupled to each other to generate an alarm signal when either of the detectors senses a potential fire. The smoke detector includes a power supply circuit having both an AC powe... | 03/26/2002 |
| 6356199 | Diagnostic ionic flame monitor An ionic flame monitor. The flame monitor has a flame rod that produces an ionization current when the flame rod is immersed in a flame and excited by a voltage. The ionization current has a DC component and an AC component each dependent on the intensity... | 03/12/2002 |
| 6201476 | Device for monitoring the activity of a person and/or detecting a fall, in particular with a view to providing help in the event of an incident hazardous to life or limb A device for monitoring the activity of a person and/or detecting a fall suffered by a person with a view in particular to summoning help in the event of an incident hazardous to life or limb is worn by the person concerned and transmits a danger signal t... | 03/13/2001 |
| 6126435 | Electronic ignition system for a gas stove In an electronic ignition system for igniting a plurality of gas burners by means of a plurality of electrodes, each one being mounted adjacent with each burner for producing sparks for the ignition of each burner. A spark generating circuit connected wit... | 10/03/2000 |
| 6118381 | Fire detection including an air movement device and pre-condition sensing A system for the detection of fire in an apparatus or device having a fan and a pump, comprising means 20, 25 for detecting the presence of a pre-condition of fire, control means 30 for deactivating the fan on detection of said precondition, and fire dete... | 09/12/2000 |
| 6084518 | Balanced charge flame characterization system and method A sensor for detecting characteristics of a flame includes a pair of electrodes that are spaced apart for passing an electric current through the flame. A pulse width modulator is coupled to the electrodes and generates an alternating current which flows ... | 07/04/2000 |
| 5969617 | Flame ionization detector A flame ionization detector having a pair of spaced electrodes to which a DC voltage is applied and a flame produced between the electrodes by burning a gas whose composition is to be determined, thereby ions are produced which form an ion current between... | 10/19/1999 |
| 5952930 | Ionic flame detector using plural electrodes A pair of reference electrodes and a flame rod are placed in contact with charged particles in a flame produced by a burner. When a voltage is applied between the flame rod and the burner by a power source, a current (Ifr) flows between them du... | 09/14/1999 |
| 5775895 | Combustion-state detecting circuit of combustion apparatus There is disclosed a combustion-state detecting circuit of a combustion apparatus installed in a combustion chamber, including: a flame detector that has a heat-emitting device for emitting heat on application of an alternating current signal, and produce... | 07/07/1998 |
| 5720604 | Flame detection system A flame sensor senses the intensity of a pilot flame to determine whether main burner ignition has occurred in a gas furnace. The sensor includes a computer which is operative to trigger the sensing of the flame intensity following the provision of gas to... | 02/24/1998 |
| 5633501 | Combination photoelectric and ionization smoke detector An ionization chamber for use in a smoke detector includes first and second outer electrodes and a non-reflective center electrode. The non-reflective center electrode can be formed as a metal electrode having a non-reflective coating or as a non-reflecti... | 05/27/1997 |
| 5506569 | Self-diagnostic flame rectification sensing circuit and method therefor An electric control is shown for gas furnaces which controls fan motors and ignition controls based on inputs from a room thermostat (32), a high limit control and an ignition control (14) including a gas valve. A flame sense circuit (42, 42') is coupled ... | 04/09/1996 |
| 5472337 | Method and apparatus to detect a flame An apparatus and method to qualify the condition of a flame body is disclosed, where such apparatus comprises a power source, an amplifier and sensor means, where said sensor means includes two or more probes disposed in spaced apart relation so as to con... | 12/05/1995 |
| 5351034 | Fire detector A fire detector includes a scattered light detector unit and an ionization detector unit which are arranged upon a common base at each side of the center axis of a compartment defined by the base and a peripheral wall extending from the base. The scattere... | 09/27/1994 |
| 5073104 | Flame detection A method and apparatus of detecting the condition of a flame having an emf by electrically conducting the emf generated by the flame as a signal to a sensor through an electrically isolated conductor means and sensing with said sensor an electrical parame... | 12/17/1991 |
| 4955806 | Integrated furnace control having ignition switch diagnostics An integrated electronic control arrangement is disclosed in the illustrative environment of burner such as in a gas-fired furnace. The control incorporates a self-test feature which shuts down the furnace in the event of any one of a number of possible s... | 09/11/1990 |
| 4871307 | Flame ignition and monitoring system and method A system and method for igniting and monitoring a pilot flame for a burning of waste gas, such as the waste gas of an oil refinery or drilling rig, includes a current which is pulsed periodically with pulses of approximately one-second duration of electri... | 10/03/1989 |
| 4710125 | Safety device for oil burner A safety device for an oil burner is disclosed which is capable of carrying out the detection of flame by means of a DC flame current obtained due to the rectification of flame to detect the abnormal combustion in the oil burner. The safety device include... | 12/01/1987 |
| 4682946 | Carburetion type burning apparatus A carburetion type burning apparatus having a carburetion chamber for evaporating liquid fuel which comprises a timer for counting time from the initiation of burning operation, an ion current detecting device for measuring an ion current (if) at the time... | 07/28/1987 |
| 4652231 | Gas control circuit An improved electrical circuit for controlling the operation of a gas solenoid valve which regulates the flow of gas to a burner. Field effect transistors, whose operation is controlled by a flame rectification circuit and/or a timing circuit, directly co... | 03/24/1987 |
| 4626193 | Direct spark ignition system A direct spark ignition system is provided with an improved spark generator powered directly from a low voltage dc source through an inverter controlled by a gated oscillator. The inverter is comprised of a step-up transformer having its primary winding c... | 12/02/1986 |
| 4595354 | Igniter for gas discharge pipe with a flame detection system An igniter for igniting waste gas discharged from a gas discharge pipe has a flame detection circuit. The igniter has an electrode and a gas conduit which supplies a source of fuel to the nozzle for creating a flame to discharge across the gas discharge p... | 06/17/1986 |
| 4552528 | Current generator for the supply and detection of operation of a gas burner and control device applying same The invention relates to a current generator for the supply and detection of operation of a gas burner wherein said generator is equipped with a transformer comprising: 1--a primary winding supplied from a D.C. supply source by way of an electronic switch... | 11/12/1985 |
| 4519771 | Flame detection system with isolation between burner and electronic control device A method for detecting the operation of a burner uses the rectifying effect of the burner flame, when an alternating voltage is applied between the burner (1) and an electrode (2). A control device (18) is connected to the primary of an isolating transfor... | 05/28/1985 |
