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 |
| 7428946 | Suspension and electro-acoustic transducer using the suspension A suspension with a plurality of roll sections each of which has a semi-cylindrical shape from a cross-section view. The roll sections are disposed side by side based on a straight line connecting two points on an inner periphery or an outer periphery. The roll sect... | 09/30/2008 |
| 7392880 | Dual range horn with acoustic crossover A new approach has been developed to combine mid-range and high frequency sound into the throat of a horn designed for sound reinforcement. An acoustic low pass filter element is interposed between the lower frequency passage and the higher frequency passage, so tha... | 07/01/2008 |
| 7360626 | Audio speaker with wobble free voice coil movement A speaker that is designed to substantially eliminate wobble of the voice coil during operation, and thus remove that source of distortion and early failure of the speaker. This is accomplished with the creation of triangular ring that extends upward from the top ed... | 04/22/2008 |
| 7292702 | In-wall speaker system method and apparatus The disclosure relates to an in-wall speaker system, specifically a system that is not readily visible and mounted in a room. The in-wall speaker system is comprised of a base frame that is adapted to be mounted between support members of a wall. The in-wall speaker... | 11/06/2007 |
| 7284638 | Loudspeaker low profile quarter wavelength transmission line and enclosure and method A speaker enclosure including a compact quarter wavelength transmission path in the shape of a closed spiral that expands radially outward from a centrally located loudspeaker mounting location. The height of the transmission path has a minimum height that is equal ... | 10/23/2007 |
| 7225895 | Audio speaker with wobble free voice coil movement A speaker that is designed to substantially eliminate wobble of the voice coil during operation, and thus remove that source of distortion and early failure of the speaker. This is accomplished with the creation of triangular ring that extends upward from the top ed... | 06/05/2007 |
| 7214179 | Low acceleration sensitivity microphone An implanted microphone is provided that has reduced sensitivity to vibration and attendant acceleration forces. In this regard, the microphone differentiates between the desirable and undesirable components of a transcutaneously received signal. More specifically, ... | 05/08/2007 |
| 7204799 | Microphone optimized for implant use An implantable microphone for use with an implantable hearing instrument that has a reduced vibration sensitivity in comparison with its acoustic sensitivity. The microphone utilizes a plurality of small diaphragms as opposed to a single large diaphragm in order to ... | 04/17/2007 |
| 7201252 | Loudspeaker systems A loudspeaker system includes a loudspeaker drive unit (1) and a rear sound absorption system (20) having a multiplicity of tubes connected to the rear of the loudspeaker drive unit. In one example, the rear sound absorption system (20) comprise... | 04/10/2007 |
| 7185735 | Audio speaker with wobble free voice coil movement A speaker that is designed to substantially eliminate wobble of the voice coil during operation, and thus remove that source of distortion and early failure of the speaker. This is accomplished with the creation of triangular ring that extends upward from the top ed... | 03/06/2007 |
| 7158648 | Loudspeaker system with extended bass response A loudspeaker system has an extended bass or low frequency response. The loudspeaker system integrates a passive radiator with a transducer. The loudspeaker system also mechanically isolates the passive radiator and the transducer. A support mechanism mechanically g... | 01/02/2007 |
| 6985593 | Baffle vibration reducing A vibration reducing apparatus comprising, a baffle subject to vibration, a first electroacoustical transducer characterized by a first mass seated in the baffle, a second electromechanical transducer mechanically connected to said first transducer or said baffle in... | 01/10/2006 |
| 6920230 | Electromagnetic transducer and portable communication device An electromagnetic transducer includes: a first diaphragm; a second diaphragm provided in a central portion of the first diaphragm, the second diaphragm comprising a magnetic material having a first opening in a central portion thereof; a yoke disposed so as to oppo... | 07/19/2005 |
| 6814181 | Electrically conductive damper device for speaker There is provided an electrically conductive damper device for a speaker in which local bending is reduced and break-downs of material of the damper and metallic wires incorporated in the damper are prevented, by additionally providing one or more sheets of damper f... | 11/09/2004 |
| 6782112 | Low frequency transducer enclosure An acoustical transducer enclosure has an acoustic lever acoustically coupled to an electro-acoustical transducer so as to force all radiated sound through the lever. ... | 08/24/2004 |
| 6766027 | Elliptical flushmount speaker An elliptical speaker system is provided for in-wall/in-ceiling mounting. The speaker system comprises an elliptical speaker frame or bracket defining a speaker front plane having a generally arcuate inner surface. First and second speaker components are mounted wit... | 07/20/2004 |
| 6672423 | Speaker and method of assembling the speaker In a speaker including a voice coil which is wound on a voice coil bobbin and is inserted into a magnetic circuit gap of a magnetic circuit, and a cone which is coupled to the voice coil bobbin for vibration, the cone (16) is constructed of two divided co... | 01/06/2004 |
| 6627805 | Audio device and method including a membrane having at least two tongues with different resonant frequencies For musical instruments or sound reproduction, finer sound definition is preferable. In sound reproduction, electro-acoustic transducers fitted with round membranes or electrostatic system stripes are common. No system states that the sound created is cor... | 09/30/2003 |
| 6578661 | Speaker apparatus A speaker apparatus which can remove undesirable vibrations and can produce sounds of excellent quality of acoustic signals having high audio frequencies is presented by increasing a strength of a flat joint portion and by properly setting a mass ratio be... | 06/17/2003 |
| 6513623 | Speaker A frame (14) supporting a diaphragm (12) by its outer periphery is constructed by a connecting ring (30) and a base (28) which comprises a bottomed cylinder portion (28A) and a mounting portion (28B) which extends radially outward from the bottomed cylind... | 02/04/2003 |
| 6460651 | Passive speaker system A passive radiator and method is disclosed which improves frequency response linearity and greatly reduces the possibility that wobble of a passive radiator which will occur without the displacement limitations of a spider containing speaker structure. Tw... | 10/08/2002 |
| 6454046 | Synchronous dustproof cover structure for sound membrane Synchronous dustproof cover structure for sound membrane. The dustproof cover structure being made of a light and rigid material. Multiple reinforcing ribs are perpendicularly disposed on one face of the dustproof cover at equal intervals. Bottom ends of ... | 09/24/2002 |
| 6431309 | Loudspeaker system A speaker system with a dual cone speaker having interconnected primary speaker and secondary speaker cones. An enclosure defines a first sub-chamber for interacting with the rear of the first speaker cone and a second sub-chamber for interacting with the... | 08/13/2002 |
| 6343128 | Dual cone loudspeaker A dual-cone loudspeaker includes a primary speaker cone and an axially displaced secondary speaker cone mounted to the back of a magnet structure. A rigid link causes both cones to move in unison. The rigid link includes an open support structure with equ... | 01/29/2002 |
| 6188774 | Loudspeaker A flat loudspeaker of superior quality for use in audio appliances, in which loudspeaker the generation of abnormal sounds is eliminated by placing a voice coil with a high accuracy in the magnetic gap. A diaphragm is split into a main diaphragm (11) and ... | 02/13/2001 |
| 6026929 | High frequency radially arcuated center speaker cone with variable thickness The present invention is directed to an improved high frequency acoustic speaker center cone, which may be located at a speaker coil tubular support, tube wherein the cone has a plurality of thin, pie-shaped segments radiating outwardly with each of the s... | 02/22/2000 |
| 5880412 | High frequency radially arcuated center speaker cone The present invention is directed to an improved high frequency acoustic speaker center cone, which may be located at a speaker coil tubular support, tube wherein the cone has a plurality of thin, pie-shaped segments radiating outwardly with each of the s... | 03/09/1999 |
| 5847332 | Polycarbonate-based radially arcuated speaker cone Acoustic speaker cones have a plurality of thin, pie-shaped segments radiating outwardly from their center with each of the segments having an arcuated cross-section. The cones are made of polycarbonate plastic and take the form of being convex towards th... | 12/08/1998 |
| 5802191 | Loudspeakers, systems, and components thereof Improved loudspeakers, systems and components are adapted to interconnect with many forms of communication media. In one embodiment, a speaker is mountable within a receptacle. The speaker includes a magnetic driver and a diaphragm mounted to a frame. The... | 09/01/1998 |
| 5719946 | Loudspeaker for higher audio frequencies and a manufacturing method thereof A loudspeaker has a first diaphragm having a domed shape, a second diaphragm formed on a periphery of the first diaphragm, and a voice coil provided at a juncture of the first and second diaphragms. The second diaphragm is designed such that a dip frequen... | 02/17/1998 |
| 5635686 | Composite speaker system having a directional adjustable tweeter A composite speaker system includes a tweeter or high frequency transducer attached to an adjustable flexible arm or arms which is mounted directly to the pole piece or adapter member connected to the pole piece of a woofer or low frequency transducer. Th... | 06/03/1997 |
| 5629501 | Composite speaker system having a directional adjustable transducer A composite speaker system including a high frequency transducer and a low frequency transducer. An adjustable rod is attached to a pole piece of the low frequency transducer and a back side of the high frequency transducer. The high frequency transducer ... | 05/13/1997 |
| 5512714 | Composite speaker system having a directional adjustable tweeter A composite speaker system includes a tweeter or high frequency transducer attached to an adjustable flexible arm or arms which is mounted directly to the pole piece or adapter member connected to the pole piece of a woofer or low frequency transducer. Th... | 04/30/1996 |
| 5471437 | Electrodynamic acoustic transducer An electrodynamic transducer has a diaphragm substantially having two parts with different profiles, namely an acoustically active central part and an annular part laterally adjoining the central part and serving for the resilient suspension of the diaphr... | 11/28/1995 |
| 5283397 | Diaphragm for electrodynamic transducer A diaphragm with moving coil for electrodynamic transducers has in the center thereof a spherically-shaped portion and adjacent to the spherically-shaped portion a toroidally-shaped zone which may be provided with corrugations. An outwardly diverging, tru... | 02/01/1994 |
| 5143169 | Loudspeaker diaphragm provided with a rear load The present invention relates to a loudspeaker diaphragm which is provided with a rear load and the vibration characteristic of which is improved in that the work to be performed for compressing the air behind the loudspeaker diaphragm is reduced. For thi... | 09/01/1992 |
| 5025885 | Multiple chamber loudspeaker system A loudspeaker system has an enclosure with a baffle dividing the interior into first and second subchambers. The smaller subchamber is directly coupled to the region outside the enclosure by a port tube. The larger subchamber is coupled to the region outs... | 06/25/1991 |
| 4930596 | Loudspeaker system A loudspeaker system which comprises a loudspeaker unit for radiating a first sound, a horn unit having a throat coupled to the back of the loudspeaker for radiating a second sound, and an acoustic filter provided in the horn for causing an acoustic imped... | 06/05/1990 |
| 4905788 | Electro-acoustic transducers An electro-acoustic transducer is formed of a loudspeaker enclosure having a form of revolution about an axis each end of which is closed by a loudspeaker. The two loudspeakers are mounted back to back in the axis of the enclosure, one of the loudspeakers... | 03/06/1990 |
| 4899390 | Thin speaker having an enclosure within an open portion and a closed portion A speaker which is thin but which is capable of providing high-fidelity reproduction and ensuring a suitable level of sound pressure even when it is brought close to a wall. A closed chamber is formed behind one part of a diaphragm mounted in an enclosure... | 02/06/1990 |
