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 |
| 7416052 | Exhaust system of internal combustion engine In an exhaust system, exhaust manifolds are connected to two banks provided in a V-type engine of a vehicle, respectively, to which front pipes each having a catalytic converter are connected to the exhaust manifolds, respectively. A muffler is provided at an exhaus... | 08/26/2008 |
| 7380635 | Interference-based exhaust noise attenuation An interference-based exhaust noise attenuation device and method for exhaust flow from an internal combustion engine that generates compressive waves in the exhaust flow. The device includes at least a direct path for the exhaust flow; a looped path for the exhaust... | 06/03/2008 |
| 7380638 | Exhaust noise control for motorcycles A noise control apparatus for a motorcycle exhaust system. The apparatus includes at least one exhaust pipe assembly having a direct pass-through mode and an indirect mode wherein exhaust gases are optionally directed through noise attenuating means. The apparatus i... | 06/03/2008 |
| 7303047 | Apparatus for filtering ultrasonic noise within a fluid flow system A method is employed to attenuate ultrasonic noise propagating in a flow stream of a fluid flow system. In particular, the method attenuates the noise propagating between a noise source and a reference point in the flow stream (wherein the reference point and the no... | 12/04/2007 |
| 7303048 | Method for filtering ultrasonic noise within a fluid flow system A method is employed to attenuate ultrasonic noise propagating in a flow stream of a fluid flow system. In particular, the method attenuates the noise propagating between a noise source and a reference point in the flow stream (wherein the reference point and the no... | 12/04/2007 |
| 7303046 | Apparatus for filtering ultrasonic noise within a fluid flow system A method is employed to attenuate ultrasonic noise propagating in a flow stream of a fluid flow system. In particular, the method attenuates the noise propagating between a noise source and a reference point in the flow stream (wherein the reference point and the no... | 12/04/2007 |
| 7287622 | Exhaust muffler The present specification discloses a muffler for attenuating exhaust noise from an internal combustion engine. The muffler includes a main chamber, an intermediate pipe, a diffuser chamber, a spark arrester, and an exhaust pipe. Exhaust gases from the engine enter ... | 10/30/2007 |
| 7249613 | Energy attenuation device An energy attenuation device for a conduit that is adapted to convey a pressurized fluid therethrough, comprising a hose section disposed about a portion of the conduit, wherein such conduit portion is provided with at least one aperture, for example in a surface th... | 07/31/2007 |
| 7243757 | Exhaust muffler An exhaust muffler (1) invention includes an entry chamber (9), a resonator chamber (15), and a baffle chamber (23) positioned in serial order between an exhaust gas inlet (3) that lets exhaust gas into the entry chamber and an exh... | 07/17/2007 |
| 7232017 | Pole vibration damping assembly and method A pole vibration damping means includes an annular housing with internal radial pole encircling chambers in which lead spheres are provided for effecting damping of first mode harmonic vibrations with the assembly being attached to the upper end portion of the pole ... | 06/19/2007 |
| 7225504 | Noise suppressor for use with vacuum air cleaner A noise suppressor for use with the vacuum air cleaner includes an enclosed casing. On the casing, there are an air intake end and an air outlet end. Between the air intake end and the air outlet end, there is the noise suppressing chamber. At the air intake end and... | 06/05/2007 |
| 7174992 | Muffler with secondary flow path A muffler has a main body, and an inner shell spaced radially inwardly of the main body by an annular volume therebetween. The inner shell has an internal volume radially inward of the annular volume. The muffler has primary and secondary parallel paths therethrough... | 02/13/2007 |
| 7159692 | Silencer A silencer that comprises a casing, one or more pipes or passages leading a flow of gas to the casing and a device for leading gas from the casing. The silencer further has at least one internal chamber, one or more flow inlets to the chamber and one or more flow ou... | 01/09/2007 |
| 7077922 | Technique to fill silencers A method for forming odd-shaped mufflers is achieved by first introducing an unfilled muffler insert having a desired number of pipes and partitions within a two-piece shaped tool. Fibrous material is introduced within desired compartments formed between the shaped ... | 07/18/2006 |
| 7040451 | Automotive exhaust silencer system with variable damping characteristics In a muffler device of a motor vehicle, with a plurality of mufflers and an actuator for changing the flow resistance to the exhaust gases flowing through the mufflers, in order to change the damping characteristic, the actuator is provided in a pipe branch having a... | 05/09/2006 |
| 7036530 | Energy attenuation device for a fluid-conveying line and method of attenuating energy in such a line An energy attenuation device for a fluid-conveying line, and a method for attenuating energy in such a line, are provided. The device includes one or more hose sections disposed in the fluid-conveying line, and at least one spring disposed in at least a portion of e... | 05/02/2006 |
| 7017707 | Herschel-Quincke tube for vehicle applications An HQ tube arrangement suitable for packaging within a vehicle may be designed by creating a mathematical model representing a tube arrangement having a first passageway and a second passageway fluidly connected to the first passageway at first and second junctions.... | 03/28/2006 |
| 7004283 | Multiple-chambered exhaust muffler An exhaust gas muffler of multi-chamber construction includes an outer housing having an upper and lower half shell, an inner shell, and an inner exhaust gas duct through the exhaust gas muffler. The inner exhaust gas duct has at lease one curved outlet pipe that ha... | 02/28/2006 |
| 6968923 | Reduced noise valve stack connection Disclosed is a silencer system configured to allow for thermal growth thereof while attenuating noise created by expansion of high-pressure fluid flowing therethrough. The silencer system comprises a tubular inner sleeve, a tubular flexible bellows, a tubular vent s... | 11/29/2005 |
| 6868939 | Exhaust silencer system An improved exhaust system for an internal combustion engine generally comprises two expanding megaphones, separated by a dual core annular flow silencing section. The two or split megaphone design facilitates broadening of the time of the negative pressure wave to ... | 03/22/2005 |
| 6622818 | Sound attenuating device An improved sound attenuating device for use in a gas transportation duct, said device comprising a core of acoustically absorptive material substantially enclosed within an impervious film to prevent direct contact between the acoustically absorptive mat... | 09/23/2003 |
| 6558137 | Reciprocating piston compressor having improved noise attenuation A reciprocating piston compressor having a suction muffler and a pair of discharge mufflers to attenuate noise created by the primary pumping frequency in the primary pumping pulse. The suction muffler is disposed along a suction tube extending between th... | 05/06/2003 |
| 6467570 | Spark arrester with spark filter An exhaust processor includes a housing formed to include an interior region and a partition or first spark arrester that partitions the interior region into chambers and includes a wool filter formed to include an opening. The wool filter is positioned t... | 10/22/2002 |
| 6446750 | Process for filling a muffler shell with fibrous material A process is provided for filling a muffler shell with fibrous material. The process comprises the steps of: providing a muffler shell comprising first and second muffler shell outer parts which define an internal cavity when coupled together and an inter... | 09/10/2002 |
| 6412596 | Process for filling a muffler and muffler filled with fibrous material A process is provided for filling a muffler with fibrous material as well as a muffler filled with fibrous material. The process includes a first step of providing a muffler comprising a closed outer shell having an inner cavity and a perforated pipe. The... | 07/02/2002 |
| 6382347 | Exhaust muffler for an internal combustion engine A single-in/single-out exhaust muffler 20 for an internal combustion engine includes a curved inner tube (26), an exhaust inlet (24) in communication with a first leg (32) of the curved inner tube (26), and an exhaust outlet (28) in communication with a s... | 05/07/2002 |
| 6082488 | Muffler for vehicles A muffler includes a first inner tube assembly including an inner tube, an outer tube, and a first glassfiber layer sandwiched between the inner tube and the outer tube. Each of the inner tube and the outer tube includes apertures through which exhaust ga... | 07/04/2000 |
| 5859393 | Reduced cost vent silencer An acoustical silencer (10) includes a housing (12) extending generally axially vertically upwardly from an inlet (14) to an outlet (16). A laterally extending upper divider wall (18) is attached to the housing and has a plurality of apertures (22) theret... | 01/12/1999 |
| 5783780 | Sound absorption structure A sound absorption structure which is mainly applied to an intake system of an automotive engine for suppressing noise level. The sound absorption structure comprises a base duct portion, and an extended duct portion in which a sound absorption material i... | 07/21/1998 |
| 5756944 | Filter muffler A circular-cylindrical filter muffler includes damping elements (3) arranged with their damping surfaces (11, 12) parallel to the central axis (13) of the filter muffler housing (2), which is cast as a monobloc. The damping elements are arranged in groove... | 05/26/1998 |
| 5731557 | Fluid guiding element for blocking and damping noise propagating in main passages A fluid guiding element for blocking and damping noises propagating in it has a main passage composed of a flexible inner hose jacket which is resistant to mechanical, chemical or calloric load by a fluid to be guided through the fluid guiding element, an... | 03/24/1998 |
| 5696361 | Multi-ducts sound eliminator for air pipe A multi-duct sound eliminator for an air pipe which can be installed din the air inlet or outlet of an air or gas pipe in order to eliminate noise. The outer casing of the sound eliminator can be made in cylindrical shape, a rectangular shape, or a flat s... | 12/09/1997 |
| 5679931 | Sound attenuating apparatus and method of forming the same A sound attenuating apparatus and method for forming the same including stacking selectively sized sheets of sound attenuating materials and fastening the same to form elongated, perforated sound attenuating flow-through passages which are structurally co... | 10/21/1997 |
| 5371331 | Modular muffler for motor vehicles A muffler for use on the exhaust system of the motor vehicle. The muffler has a central pipe which is surrounded by an outer pipe which leaves an annular space between the two. The outer pipe is open at both ends and the annular space is filled with a sou... | 12/06/1994 |
| 5280143 | Muffler with a scavenging effect A muffler disposed close to the atmospheric discharge end of the exhaust system, consisting of an accelerating part (4) which accelerates the exhaust gas flow and a negative pressure chamber (5) which generates negative pressure in association with the ac... | 01/18/1994 |
| 5274201 | Noise muffler for an air blower The noise generated by onrushing air which is produced by an air blower for use in conjunction with pneumatic conveying equipment is substantially reduced by directing the air flow through an enclosed housing from an air inlet opening to an air outlet ope... | 12/28/1993 |
| 5248859 | Collector/muffler/catalytic converter exhaust systems for evacuating internal combustion engine cylinders An exhaust collector for use with an internal combustion engine of the type having a plurality of generally nested exhaust tubes for individually receiving exhaust gases from separate associated engine exhaust ports. The collector is frustoconically shape... | 09/28/1993 |
| 5198625 | Exhaust muffler for internal combustion engines A new and improved muffler for use particularly with internal combustion engines which utilizes a tube assembly composed of a plurality of laterally nested tubes in direct supporting lateral engagement with each other providing direct communication thereb... | 03/30/1993 |
| 5033581 | Muffler for an internal combustion engine A muffler for use with an internal combustion engine or the like having improved attenuation capabilities. The muffler of the disclosure comprises at least two separate passages interconnected in series with a single or multiple output exhaust manifold an... | 07/23/1991 |
| 4953659 | Fluid blow-off muffler This invention provides an improved method and apparatus for attenuating the sound of flowing fluid. The apparatus of this invention includes at least two attenuating areas, preferably particle-filled containers arranged serially within a housing. One of ... | 09/04/1990 |
