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 |
| 7903441 | Power converter The present invention discloses a power converter with low standby power consumption, used to convert an AC input power to an output DC power, comprising: an EMI filter, coupled to the AC input power to filter the EMI; a TRIAC, coupled to the EMI filter to access th... | 03/08/2011 |
| 7394237 | Maxium power point tracking method and tracking device thereof for a solar power system A maximum power point tracking method, applied to a tracking device, employs a DC/DC converter connecting with a solar cell array, and including a controller actuating the DC/DC converter to perform an active resistance characteristic; a maximum power point tracking... | 07/01/2008 |
| 7330366 | DC-AC converter A DC-AC converter is applicable for transforming direct current (DC) to alternating current (AC). The DC-AC converter includes a voltage boost module and a DC-AC converter module. Herein the voltage boost module includes a voltage bypass circuit and a voltage boost ... | 02/12/2008 |
| 7304457 | Bridgeless power factor corrector circuit and control method thereof The present invention discloses a bridgeless rectified power factor corrector circuit and control method thereof. The bridgeless rectified power factor corrector circuit includes a power factor corrector inductor, two diode rectifiers, a control unit, two power MOS ... | 12/04/2007 |
| 7102298 | Integral lamp An integrated lamp/lamp electronics unit includes a lamp having a first end with first end electrical terminals, and a second end with second end electrical terminals. An end cap having an interior section is placed into electrical connection with the first end elec... | 09/05/2006 |
| 6930897 | Fuel cell inverter The invention is directed to a method, system and device for converting direct current (DC) electrical voltage from a fuel cell to an alternating current (AC) voltage. The inventive method regulates power drawn from the fuel cell and from a battery to maintain a sub... | 08/16/2005 |
| 6909262 | Control system for regulating exciter power for a brushless synchronous generator A control system regulates power to a brushless synchronous generator (BSG) (204) having a permanent magnetic generator (PMG)(210), an exciter (208) and a main generator (206) connected to a rotating shaft (212). The generator cont... | 06/21/2005 |
| 6502044 | Self-diagnostic circuitry for emergency lighting fixtures Electronic self-test and/or self-diagnostic systems particularly useful with emergency lighting fixtures, including exit signage having light emitting diodes as light sources and unit emergency fixtures powered with lead-acid batteries, the systems perfor... | 12/31/2002 |
| 6404172 | Method and apparatus for providing integrated buck or boost conversion A method and apparatus for integrating buck or boost converting includes processing for controlling the configuration of transistors, an inductor, a power source, and a load to provide buck or boost converting. Such processing begins by determining whethe... | 06/11/2002 |
| 6268666 | Bi-directional power conversion apparatus for combination of energy sources A bi-directional power converter apparatus and method of conversion is disclosed which comprises three active elements (output, primary, and auxiliary switches) and two passive components (primary and auxiliary energy storage elements) coupled so as to en... | 07/31/2001 |
| 5949224 | Buck boost switching regulator A buck boost switching regulator includes a buck switch and a boost switch controlled by a first and second comparator, respectively. The first comparator generates a duty cycle control signal for the buck switch in response to the difference between the ... | 09/07/1999 |
| 5942884 | Electronic transformer/regulator In a voltage regulator converter circuit comprising an input 20 and an output 25, an input signal can be controlled by applying a high frequency switching signal (1 KHz-30 MHz) to an input circuit 12, 13, 16 and 17. An output of the circuit is obtained vi... | 08/24/1999 |
| 5877952 | Power supply apparatus with initial arcing sustaining circuit Power supply apparatus includes a converter which converts a commercial AC voltage into a DC voltage. An inverter converts the DC voltage into a high frequency voltage. The high frequency voltage is voltage-transformed by a transformer, and then rectified... | 03/02/1999 |
| 5866957 | Switching device A switching device which can reduce effectively noise that is generated from a charge pump used to generate a drive voltage for driving a plurality of semiconductor switches. In the switching device, the charge pump used to generate the drive voltage for ... | 02/02/1999 |
| 5856919 | Quasiresonant boost power converter with bidirectional inductor current A boost power converter for powering a load with an AC power source. The boost power converter has an energy storage device, a resonant circuit, a resonator switch circuit, a boost inductor circuit with a boost inductor, and a boost switch circuit. The re... | 01/05/1999 |
| 5714863 | Circuit for enhancing power delivery of an energy source The power delivery of an energy source (10) is enhanced by a dual function circuit. The circuit utilizes a storage capacitor (32) to store a voltage higher than the source voltage by transferring charge from the energy source to the storage capacitor betw... | 02/03/1998 |
| 5654626 | Boost-converter with low losses A boost-converter with low losses having a series connection of an energy storing main inductor and a main diode connected between a first input terminal for a first voltage and a first output terminal for a second, higher dc-voltage. The centre point bet... | 08/05/1997 |
| 5615101 | Power converter with high power factor A buck-boost power converter for powering a load from an AC power source having a full resonant circuit for applying an alternating voltage to the load. A choke is connected to the full resonant circuit and a switching device switches the choke in quasi-r... | 03/25/1997 |
| 5615095 | Method and apparatus for protecting an inverter power supply In accordance with the present invention a power supply for providing an ac/dc output to a load is disclosed. The power supply includes a first source of dc power and an inverter that provides an ac output to the load. A second source of dc power is provi... | 03/25/1997 |
| 5612580 | Uninterruptible power system An uninterruptible power supply for providing continuous power from a power source line to a load is provided. In particular, the uninterruptible power supply may either operate in an "Off-Line" mode or one of two "On-Line" modes. The uninterruptible powe... | 03/18/1997 |
| 5610450 | Power supply apparatus for efficiently utilizing battery and electronic apparatus using the power supply A booster type DC-DC conversion circuit and a voltage reduction type DC-DC conversion circuit are connected in series with a battery. When battery voltage is high, the booster type DC-DC conversion circuit does not operate, and the voltage reduction type ... | 03/11/1997 |
| 5602462 | Uninterruptible power system An uninterruptible power system has a transformer with a primary connected to input terminals, a secondary connected to output terminals, a static switch connected between the input terminals and the primary, and an auxiliary primary connected to an inver... | 02/11/1997 |
| 5559684 | Switching regulator A switching regulator composed of a push-pull converter with a buck or boost regulator connected upstream. The output inductance of the regulator is split into two separate inductances each of which is fed to one leg of the push-pull circuit. The push-pul... | 09/24/1996 |
| 5552695 | Synchronously rectified buck-flyback DC to DC power converter A synchronously rectified buck-flyback converter is described which provides multiple synchronous regulated outputs. A synchronous buck converter provides the main output and a synchronous flyback converter, utilizing the primary inductor of the buck conv... | 09/03/1996 |
| 5502634 | Regulated auxiliary power supply An auxiliary regulated power supply is described for use in a system having a main load directly connected to a main regulated power supply and an auxiliary load connected to the main regulated power supply by a line in which a voltage drop occurs. The au... | 03/26/1996 |
| 5444356 | Buck converter having a variable output and method for buck converting power with a variable output A power supply for providing an ac/dc output to a load, includes a first source of dc power and an inverter that provides an ac output to the load. A second source of dc power is provided and selectably connects the first and second sources of dc power in... | 08/22/1995 |
| 5442536 | Low-loss power supply device comprising a DC/DC converter A low loss power supply device for generating at least one output voltage (Ua) from an input voltage (Ue) having an absolute value which is higher than that of the output voltage. The power supply device has a low power loss and minimum space requirements... | 08/15/1995 |
| 5436818 | Full wave buck-boost power converter with buck power converter properties A continuous mode full wave power converter topology which integrates the buck-boost (flyback) and buck converter properties. The voltage transfer function is M=(D/(1-D)), characteristic of the buck-boost (flyback) converter. Characteristic of the full wa... | 07/25/1995 |
| 5430883 | Function expansion unit capable of supplying power to computer A system includes a computer main body, and an expansion unit detachably connected to the computer main body, for supplying a power to the computer main body and expanding a function of the computer. A power in the expansion unit is consumed in the expans... | 07/04/1995 |
| 5402060 | Controller for two-switch buck-boost converter A controller for a two-switch buck-boost converter accomplishes one-at-a-time switch control by simultaneously employing an analog error signal to control one drive output and an analog inversion of that error signal, with respect to a voltage that is equ... | 03/28/1995 |
| 5119283 | High power factor, voltage-doubler rectifier A voltage-doubler rectifier includes an ac fullbridge diode rectifier and a dc-to-dc converter having two output boost circuits. One of the output boost circuits is coupled between the rectifier and a dc link, and the other output boost circuit is coupled... | 06/02/1992 |
| 4884180 | Regulated direct-current converter A dc converter for supplying an electronic device in which a feed voltage is summed with an additional voltage generated by rectification and wherein pulse-width control is provided at the primary side of the converter transformer. According to the invent... | 11/28/1989 |
| 4870298 | Power switch booster circuit A power booster circuit is described. The booster circuit having amplifying circuitry comprises an input circuit, a switching circuit, and an auxiliary power circuit. The booster circuit is initiated by receipt of a signal by the input circuit. The amplif... | 09/26/1989 |
| 4716357 | AC voltage regulator with split primary switching An apparatus for AC line voltage regulation has an input port for connection to an AC source, an output port for connection to a load, and a transformer assembly connected between the input and output ports. The transformer assembly comprises a buck/boost... | 12/29/1987 |
| 4692686 | Low-distortion line voltage regulator An AC voltage regulator maintains a predetermined, desired output voltage despite changes in the input voltage, the load, or other operating conditions. The regulator generates an AC reference voltage signal of the same frequency and in phase with the inp... | 09/08/1987 |
| 4667075 | Microwave oven for vehicles A microwave oven for a camping or other vehicle includes a heating room in which an object is heating by applying microwaves thereto, a microwave guide to propagate the microwaves into the heating room, a magnetron to produce the microwave for the microwa... | 05/19/1987 |
| 4651265 | Active power conditioner system At least two active conditioners are connected in series with a common DC source, and are mounted as a unit between two pairs of AC terminals to act either as a tie-in link between two AC power sources, as a buck/boost regulator between one AC power sourc... | 03/17/1987 |
| 4642745 | Power circuit with high input power factor and a regulated output A single power converter is capable of drawing low distortion current from an AC line and delivering DC or AC power to a load. The single power converter is used to independently control the input current and the output current. The power converter transf... | 02/10/1987 |
| 4581690 | Switched-mode power supply with output post-regulator A switched-mode power supply provides a plurality of directly regulated DC output voltages. The power supply includes a first inverter-coupled transformer for providing first and second DC output voltages, with a feedback loop provided from a first output... | 04/08/1986 |
| 4578630 | Buck boost switching regulator with duty cycle limiting In a buck-boost, switching regulator, separate signals are developed to control duty cycles of regulator switches. Control exercised by a pair of feedback-determined reference signal voltages through which a ramp signal is swept at inputs of separate comp... | 03/25/1986 |
