Bizarre Patents
Dining Table Having Integral Dishwasher
A space-saving dishwasher, which may be installed within a counter top or table, having a dish-carrying rack that is vertically shiftable through the open top of the dishwasher for facilitating loading and unloading of the dishes.
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| Number | Title | Issue Date |
| 5911334 | Closable arrangement including resealable lid A peelable and resealable closure arrangement for a container body and lid that ensures integrity of the seal, including a tubular container body including a peripheral rim extending radially outward from the body wall and a lid including a flat central p... | 06/15/1999 |
| 5875150 | Micropower read-only-memory integrated circuit An integrated circuit read-only-memory with low power requirements, including a plurality of information storage memory cells and a decoder. The circuit operated in response to a selected address input and a control input to the decoder to direct and gene... | 02/23/1999 |
| 5742066 | Light source for use in leak detection in heating, ventilating, and air conditioning systems that utilize environmentally-safe materials A light source for use in examining leak detection sites in heating, ventilating, and air conditioning systems that utilize a fluorescence-producing dye in the refrigerant to determine the presence of leaks. The light source combines a dichroic reflector ... | 04/21/1998 |
| 5737401 | Full coin box signalling device for use with coin telephones A coin box monitoring circuit for use in pay telephones, providing coin detection, coin volume totalization, and full coin box signaling to the telephone central office. An included coin chute assembly has three channels that cause nickels, dimes, and qua... | 04/07/1998 |
| 5709294 | Non-jamming coin chute trigger assembly for pay telephones A coin chute trigger assembly having separate coin paths for nickels, dimes, and quarters. Intentionally, the dime coin path is made at least twice as wide as the thickness of a dime in order to prevent hangups and jams. A trigger included in each coin pa... | 01/20/1998 |
| 5681984 | Leak detection in heating, ventilating, refrigeration, and air conditioning systems utilizing adsorptive materials A leak detecting dye for use in heating, ventilating, air conditioning, or refrigeration systems employing dyes such as naphthalimide, perylene, coumarin, anthracene, phenanthracene, and thioxanthane. The dye is adsorbed onto a non-absorbent carrier which... | 10/28/1997 |
| 5676232 | Coin chute trigger assembly for pay telephones with microswitches A coin chute trigger assembly having separate coin paths for nickels, dimes, and quarters. A microswitch is positioned adjacent to each coin path. A trigger included in each coin path is operated in response to deposit of the appropriate coin through the ... | 10/14/1997 |
| 5674000 | Light source for use in leak detection in heating, ventilating, and air conditioning systems that utilize environmentally-safe materials A light source for use in examining leak detection sites in heating, ventilating, and air conditioning systems that utilize a fluorescence-producing dye in the refrigerant to determine the presence of leaks. The light source combines a faceted reflector w... | 10/07/1997 |
| 5636266 | Wireless caller information processing system A wireless caller identification system employing master and remote units. Microcontrollers at both master and remote units facilitate secure communications between units, providing the identity of the source of calls received at the master unit over a co... | 06/03/1997 |
| 5565123 | Electronic control circuit for a cooking unit employing pulse width modulation to control a radiant heating element A control circuit for a stove, cooktop or oven utilizing at least one electrical radiant heating element. The circuit effectively compares a controlled voltage and internally generated saw-tooth voltage wave to control the percent power to the radiant ele... | 10/15/1996 |
| 5546331 | AC line voltage measurement and control A measuring and control circuit for measuring the voltage of an alternating current source and controlling the operations of an associated load. A memory associated with the microprocessor is programmed to provide information representative of voltage lev... | 08/13/1996 |
| 5533349 | Determination of ambient air temperature outside of an appliance A method for determining ambient air temperature outside of an appliance by making measurements inside the appliance. By measuring the time it takes a sensor to change inside the appliance from one temperature reading to another reading, the ambient tempe... | 07/09/1996 |
| 5533350 | Defrost control of a refrigeration system utilizing ambient air temperature determination A method for determining the time to begin and end a defrosting cycle of an evaporator included within a refrigeration system. Decisions as to initiate and terminate defrosting operations are predicated on information about the external temperature of the... | 07/09/1996 |
| 5528017 | Electronic thermostat for an oven An electronic thermostat for use with cooking ovens that may include oven cleaning features. An analog comparator is utilized to compare reference voltage with voltage representative temperature changes sensed within the oven, to control the oven heating ... | 06/18/1996 |
| 5524444 | Temperature control of an appliance using ambient air temperature determination A method of controlling the temperature of air inside two compartments of a refrigerator or similar appliance utilizing a single temperature sensor and the known air temperature external of the appliance. Based on knowledge of the temperature relationship... | 06/11/1996 |
| 5522475 | Method and apparatus for exchanging oil in a compressor Apparatus and method of exchanging lubricating oil from the crankcase of a compressor. A unit including a pretrimmed flexible tube is introduced into the oil fill plug opening. By opening an internal valve, the oil under pressure exits through an opening ... | 06/04/1996 |
| 5421192 | Leak detection in heating, ventilating and air conditioning systems using an environmentally safe material The present invention relates to the effective leak detection of refrigerants by the addition of dyes from the general chemical class of naphthalimide fluorescent dyes in a refrigeration system where said refrigeration system employs alone, or in combinat... | 06/06/1995 |
| 5418851 | Shock preventing telephone handset for paystation Shock prevention elements for use in a telephone paystation handset consisting of a pair of polyester dielectric elements positioned over associated transmitter and receiver units so as to block high voltage potentials resulting from application of collec... | 05/23/1995 |
| 5403507 | Vapor cleaning of metallic and electrical materials utilizing environmentally safe solvent materials A solvent mixture for use in vapor cleaning degreasing systems. Dibromomethane is used as the principal component instead of such high ozone depleting chlorofluorocarbons as Freon and 1,1,1 Trichloroethane. Dibromomethane is mixed with other solvents incl... | 04/04/1995 |
| 5399943 | Power supply circuit for a discharge lamp An electronic power supply for use with a gas discharge lamp, including a transformer having its primary winding connected in parallel with a capacitor of a series resonant element connected between an inverter and the lamp, effective to limit the voltage... | 03/21/1995 |
| 5394064 | Electronic ballast circuit for fluorescent lamps An electronic ballast circuit for multiple fluorescent lamps. Control is achieved by varying the voltage and the frequency of operation of an inverter utilized to drive the fluorescent lamps. A separate voltage boost converter provides regulated voltage t... | 02/28/1995 |
| 5369911 | Automobile door opening apparatus Remote control equipment for remotely opening a vehicle door. A manual operated remote control transmitter transmits a signal to a receiver mounted on the vehicle which causes door mounted motor actuators to unlock and unlatch the door after which a prebi... | 12/06/1994 |
| 5368007 | Airgun expansion chamber An expansion chamber with a connection to an airgun employing carbon dioxide or similar gas as a propellant. The expansion chamber is normally connected to a source of liquified gas, included therein is a structure for separating liquified gas into the ga... | 11/29/1994 |
| 5357782 | Leak detection in heating, ventilating and air conditioning systems using an environmentally safe material Refrigerant leakage in heating, ventilating and air conditioning systems employing hydrofluorocarbon refrigerants is determined by adding a mixture of predetermined amounts of a naphthalamide optical brightener with an appropriate lubricant to the system.... | 10/25/1994 |
| 5349638 | Universal calling/originating number identification An interface circuit used between a telephone office and a subscriber's telephone operated in response to signals identifying incoming calls to provide visual and/or audible indications of the identification information. The incoming signal information is... | 09/20/1994 |
| 5348059 | Multi function refill adaptor for gas operated airguns The invention is an attachment for airguns and/or similar devices powered by compressed gas. The unit is multi functional in that it facilitates rapid refilling of a connected gas supply vessel from a bulk supply source, without the necessity of removing ... | 09/20/1994 |
| 5345064 | Temperature probe conditioner circuit A temperature probe conditioner, while developing a voltage output proportional to probe temperature, generates a verify and a calibration output. A verify output to check the correctness of the conditioner's output voltage and a calibration output to con... | 09/06/1994 |
| 5298853 | Electrical apparatus for detecting relationships in three phase AC networks An electrical apparatus for visually indicating phase sequence, phase asymmetry and presence of three phases of an AC network comprising two transistors connected by their emitters to a first voltage terminal of the three phase network, the bases of the t... | 03/29/1994 |
| 5295588 | Display rack for caps A display type rack for mounting a number of baseball or sport-type caps in such a manner to display any frontal ornamentation appearing on the cap while supporting the cap in a conventional position effectively at right angles to a supporting wall or sim... | 03/22/1994 |
| 5294868 | Dual lamp electronic ballast with independent control means An electronic ballast circuit for two fluorescent lamps connected in parallel. A single switching inverter connected through a common coupling circuit provides high frequency alternating current for operation of both lamps independently of each other insu... | 03/15/1994 |
| 5291101 | Electronic ballast for a discharge lamp with current sensing An electronic ballast for use with a fluorescent lamp. A pair of oppositely poled diodes connected in parallel with a transformer used to drive the switching transistors of an inverter in the ballast, ensuring operation of the transistors at zero current ... | 03/01/1994 |
| 5258692 | Electronic ballast high power factor for gaseous discharge lamps An electronic ballast for correcting the power factor within a fluorescent lamp system. Use of an inductor in one of the AC power source leads and selected values of capacitance in a voltage divider and starting circuit combine to provide a power factor g... | 11/02/1993 |
| 5249272 | Interface between a radio control transmitter joystick control and a computer serial input port An interface circuit for use between a radio control transmitter equipped with joysticks and a standard serial input port of a personal type computer. The interface circuitry includes a microcontroller operated as a reformatter for signals received from t... | 09/28/1993 |
| 5238504 | Use of terpene hydrocarbons and ketone blends for electrical contact cleaning A blend of terpene hydrocarbons and aliphatic or cyclic ketones are used for the effective cleaning of electrical contacts. Such terpenes blended with ketone solvents have high dielectric strength, fast evaporation rate, and biodegradability making the pr... | 08/24/1993 |
| 5226124 | Communication interface between a radio control transmitter and a computer data bus An interface circuit for use between a radio control transmitter equipped with joysticks and a standard data bus of a personal type computer. The interface circuitry includes a microcontroller operated as a reformatter for signals received from the remote... | 07/06/1993 |
| 5218272 | Solid state electronic ballast system for fluorescent lamps A high power factor ballast circuit for use with fluorescent lamps consisting of a power factor correcting inductor periodically saturated to store pulses of direct current energy and periodically discharge same at a regular periodic rate to power the flu... | 06/08/1993 |
| 5212427 | Electronic lamp ballast dimming control means employing pulse width control An electronic ballast for use with fluorescent lamps including a dimming means consisting of a permanent magnet supported over and in proximity to a dual toroid coil assembly utilized as part of an included inverter circuit included in the ballast. The pe... | 05/18/1993 |
| 5210470 | Low power on-off control of electronic ballast An electronic ballast for use with fluorescent lamps including an inverter circuit for converting a direct current power source to a high voltage alternating current and starting means to inhibit operation of one of the inverter transistors until such tim... | 05/11/1993 |
| 5193113 | Protective plate for paystation anti-stuffing device A special cover for the anti-stuffing device door of a paystation telephone coin chute. The cover prevents insertion of large firecrackers or similar devices inside of the anti-stuffing device.... | 03/09/1993 |
| 5191716 | Tool for measuring, marking and cutting fabric materials A tool for holding fabric during cutting, measuring, etc., consisting of a handle and a number of sheets, each of a different size and of transparent material, each including the handle selectively connectable to each of the transparent sheets, each sheet... | 03/09/1993 |
