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 |
| 6357129 | Optical non-contacting cylindricity gauge A device measures cylindricity of a cylinder having an axial end, a circumference and an inside diameter. The device includes a track for placement at an axial end of the cylinder to be measured. The track extends around the circumference of the cylinder.... | 03/19/2002 |
| 6282964 | Electromagnetic acoustic transducer (EMAT) inspection of cracks in boiler tubes An EMAT device for non-destructive inspection of the surface of a tube for cracks using acoustic surface waves includes a pulsed magnet having an active surface for facing the surface of a tube to be inspected. A receive emat coil is on the active surface... | 09/04/2001 |
| 6270254 | Extended range fiber-optic temperature sensor An apparatus and method for sensing temperature within a broad temperature range, includes a fiber optic having an etalon at one end for reflecting light supplied at an opposite end by a pair of light sources operating at different wavelengths. The light ... | 08/07/2001 |
| 6269778 | Fine solids recycle in a circulating fluidized bed A CFB furnace or reactor unit is provided having enhanced circulation of the reagents finest particles. The improved circulation is achieved by recycling gas having entrained fine particles from a solids collection hopper connected to the solids separator... | 08/07/2001 |
| 6267358 | Low pressure drop inlet for high velocity absorbers with straight tanks A low pressure drop inlet arrangement for an absorber having straight walls has a perforated tray positioned above the gas inlet opening between the walls of the absorber. A ring around the outer edge of the tray lacks perforations, or the perforations ar... | 07/31/2001 |
| 6095096 | Integrated boiler burner with balanced heat flux A package boiler having water cooled surfaces positioned relatively close to the combustion burner to improve the radiant heat transfer. Extended surfaces are added to the water cooled tube fireside surface to increase absorption rates to the limits estab... | 08/01/2000 |
| 6067944 | Furnace floor An improved floor for a recovery boiler furnace having a flat floor has a number of tubes in the floor immediately adjacent each of the sidewalls of the furnace oriented at an oblique angle to horizontal. A method of replacing the floor is provided as wel... | 05/30/2000 |
| 6044805 | Wall protection from downward flowing solids A tube wall, division wall, or wing wall section for a circulating fluidized bed boiler with improved erosion resistant characteristics has a reduced diameter tube section adjacent the refractory covered by an abrasion resistant refractory tile. The refra... | 04/04/2000 |
| 6038902 | Intrados induction heating for tight radius rotary draw bend A boost bend method of making tight radius bends in boiler tubes, such as bends having a radius of 1×D or less, in which a selected portion of the intrados of the tube is heated in a controlled manner thereby reducing the necessary tube wall thickness re... | 03/21/2000 |
| 5912050 | Method for chromizing small parts An improved process for chromizing commercial quantities of small, industrial, ferrous-based parts, such as but not limited to threaded connectors, pins, bolts, nuts, washers, fasteners, fittings, couplings, studs, etc., uses a retort filled with layers o... | 06/15/1999 |
| 5878700 | Integrated reburn system for NOx control from cyclone-fired boilers An integrated reburn system for a cyclone-fired boiler has a reburn fuel feed nozzle through a cyclone burner into the cyclone barrel, or furnace, at a region of low-velocity fuel and air movement. The reburn fuel is injected at high velocity and mostly d... | 03/09/1999 |
| 5876537 | Method of making a continuous ceramic fiber composite hot gas filter A ceramic fiber composite structure particularly suitable for use as a hot gas cleanup ceramic fiber composite filter and method of making same from ceramic composite material has a structure which provides for increased strength and toughness in high tem... | 03/02/1999 |
| 5846301 | Fine-particulate and aerosol removal technique in a condensing heat exchanger using an electrostatic system enhancement An integrated flue gas treatment condensing heat exchanger having a particle charger located upstream of the second stage heat exchanger of the system for improved cleaning of flue gas and increased removal of fine particulate matter.... | 12/08/1998 |
| 5837898 | Electromagnetic acoustic transducer (EMAT) for ultrasonic inspection of liquids in containers An ultrasonic inspection technique using a specially designed electromagnetic acoustic transducer (EMAT) launches and receives longitudinal ultrasonic waves into a thin metal wall or thin metal foil seal of a container, causing it to vibrate and launch ul... | 11/17/1998 |
| 5836257 | Circulating fluidized bed furnace/reactor with an integral secondary air plenum A circulating fluidized bed processor has a processor enclosure at least partially defined by a front wall and a rear wall spaced away from the front wall. A bottom wall is connected between the front and rear walls and a mechanism is provided for supplyi... | 11/17/1998 |
| 5832157 | Fiber optic acoustic emission sensor A fiber optic acoustic emission (FOAE) sensor particularly suitable for vibration sensing in a hostile environment has a pair of optical fibers each having an end face. In one embodiment, a hollow tube or core having opposite open ends receives the end fa... | 11/03/1998 |
| 5824989 | Method to control starting and stopping a plasma arc welding keyhold An improved plasma arc welding arm method and apparatus for keyhole welding rotating workpieces has an arcuate gear track supporting a corresponding arcuate geared cart bearing a plasma arc welding torch prevents voids in keyhole weld starts and finishes.... | 10/20/1998 |
| 5809940 | Indirect cooling of primary impact type solids separator elements in a CFB reactor An improved CFB reactor or combustor arrangement has at least a first and a second group of impact type particle separators or U-beams with cooling surfaces located adjacent and immediately upstream of the second group of U-beams which serve to cool flue ... | 09/22/1998 |
| 5803161 | Heat pipe heat exchanger for cooling or heating high temperature/high-pressure sub-sea well streams A heat pipe heat exchanger for regulating the temperature of a wellstream fluid conveyed in a subsea pipeline from a wellhead has an annular reservoir surrounding a section of pipeline adjacent the wellhead. One or more heat pipes extend from the annular ... | 09/08/1998 |
| 5799593 | Drainable discharge pan for impact type particle separator A drainable discharge pan apparatus for an impact type particle separator used on circulating fluidized bed (CFB) boilers employs a plurality of funnel shaped discharge pans located at a lower end of each of the impingement members in the impact type part... | 09/01/1998 |
| 5797334 | Fluidized bed boiler with bed drain ash cooling and transfer A fluidized bed boiler bottom with an ash cooling and removal system has a water-cooled tube panel floor with fluidization bubble caps above a windbox, and a structural support and at least one hopper, each of the at least one hoppers with a bed ash coole... | 08/25/1998 |
| 5791404 | Flooding reduction on a tubular heat exchanger An asymmetrical, or non-uniform arrangement of heat exchanging tubes in a second stage heat exchanger of an integrated flue gas treatment system provides improved flow characteristics and reduces or eliminates flooding caused by the counter-flow of upward... | 08/11/1998 |
| 5773786 | Method and device for reducing overpenetration at the start of plasma arc welds A shim for improving plasma arc weld quality has ends tapered at about 25° and notches at each end roughly centered over the corner between the tapered ends and main body of the shim. The improved shim allows lower starting plasma arc heat input and redu... | 06/30/1998 |
| 5769035 | Boiler furnace puff sootblower A sootblower system for a furnace combustion zone has two types of blower pipes. A first type is made of a high temperature resistant material, and projects a short distance vertically through the floor of the furnace into the combustion zone and has blow... | 06/23/1998 |
| 5766320 | Integral deaerator for a heat pipe steam condenser An integral deaerator for a heat pipe steam condenser has a main steam duct connected to a heat pipe steam condenser duct by a riser. The heat pipe steam condenser duct is inclined slightly toward the riser and a weir is positioned at the connection betwe... | 06/16/1998 |
| 5743014 | Method of making field serviceable fill tube for use on heat pipes A field serviceable fill tube apparatus for use on a heat pipe employs a quick-disconnect fitting on one end of the heat pipe to facilitate filling, sealing and servicing the heat pipe, both during manufacture and afterwards in the field.... | 04/28/1998 |
| 5741973 | Spring release mechanism for electromagnetic acoustic transducer (EMAT) probe In an electromagnetic acoustic transducer or EMAT, a spring release mechanism comprises a frame or carriage and, if necessary at least one movement element for permitting movement across a surface of a workpiece. A magnet is movable against the surface pa... | 04/21/1998 |
| 5714688 | EMAT measurement of ductile cast iron nodularity A method of examining a ductile iron casting to determine a percent of nodularity present in the casting uses an electromagnetic acoustic transducer (EMAT) system to determine a time-of-flight of an ultrasonic shear wave pulse transmitted through the cast... | 02/03/1998 |
| 5708692 | Measurement system for chromium content in chromized layers and the like A method and apparatus for measuring a target analyte diffused in a wall of a metal member provides a sample of the metal member which is cut to progressively reduce a wall thickness of the sample from zero at a first point on the sample to a selected dep... | 01/13/1998 |
| 5697306 | Low NOx short flame burner with control of primary air/fuel ratio for NOx reduction A burner for the combustion of a pulverized coal plus primary air mixture includes a nozzle pipe having an inlet for receiving a pulverized coal plus primary air mixture and an outlet for discharging same. A hollow plug extends axially within the nozzle p... | 12/16/1997 |
| 5689070 | High temperature electromagnetic acoustic transducer (EMAT) probe and coil assemblies An enhanced EMAT probe and coil construction takes advantage of heat transfer and magnetic flux principles to permit inspection of workpieces at elevated temperatures of 1200° F. and higher. A ferromagnetic, cup-shaped probe assembly having an end cap an... | 11/18/1997 |
| 5674459 | Hydrogen peroxide for flue gas desulfurization A system for removing SO2, NO2, and other contaminants from flue gases uses hydrogen peroxide (H2 O2) as the reagent to convert the oxides of sulfur and some of the oxides of nitrogen (NO, NO2, etc.) ... | 10/07/1997 |
| 5664944 | Low pressure drop vanes for burners and NOX ports A vane assembly defining a flow passage for gas moving in a flow direction has at least one spin vane in the flow passage, positionable at an angle with respect to the flow direction. The vane is made of-sheet material and has a leading portion which is p... | 09/09/1997 |
| 5661241 | Ultrasonic technique for measuring the thickness of cladding on the inside surface of vessels from the outside diameter surface An ultrasonic inspection method for measuring the thickness of non-welded (non-metallurgically bonded) cladding on the inside surface of a vessel from an outside diameter surface of the vessel relies upon the occurrence of a phase change at an interface b... | 08/26/1997 |
| 5657704 | Continuous high pressure solids pump system A system and method for continuously supplying solids from a lower pressure storage reservoir to a high pressure feeder tank for use in an application such as a blast furnace employs a high pressure variable speed solids pump. A fluidizing device discharg... | 08/19/1997 |
| 5651948 | Low pressure drop, turbulent mixing zone dry scrubber Contaminants such as sulfur oxides are removed from flue gas in a low pressure drop, turbulent mixing zone, vertical dry scrubber by channeling the flue gas through a low pressure drop gas distribution means which controls flue gas introduction to the scr... | 07/29/1997 |
| 5643344 | Dry scrubber with forced recirculation A forced recirculation of a part of the untreated flue gas is established along the inside wall of a dry scrubber by providing a counterflowing gas flow along the length of a dry scrubber housing wall to prevent deposition of wet particulate material on t... | 07/01/1997 |
| 5639430 | Low pressure drop, turbulent mixing zone dry scrubber Contaminants such as sulfur oxides are removed from flue gas in a low pressure drop, turbulent mixing zone, vertical dry scrubber by channeling the flue gas through a low pressure drop gas distribution means which controls flue gas introduction to the scr... | 06/17/1997 |
| 5608164 | Electromagnetic acoustic transducer (EMAT) for ultrasonic inspection of liquids in containers An ultrasonic inspection technique using a specially designed electromagnetic acoustic transducer (EMAT) launches and receives longitudinal ultrasonic waves into a thin metal wall or thin metal foil seal of a container, causing it to vibrate and launch ul... | 03/04/1997 |
| 5608691 | EMAT with integral electrostatic shield A shield for an electromagnetic acoustic transducer (EMAT) has multiple layers of electrically insulating and electrically conductive materials which contain a coil of the EMAT. A first insulating layer lies directly on top of the coil and is attached the... | 03/04/1997 |
