Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 6795562 | Ear wax guard for an in-the-ear hearing aid and a means for use at insertion and removal hereof For the protection of an in-the-ear hearing aid against contamination by ear wax through the acoustic outlet port (34a) or a vent, a replaceable ear wax guard (36) is inserted in the aid and comprises an essentially tubular element with a throug... | 09/21/2004 |
| 6754357 | Expandable in-ear device An expandable in-ear device being implantable within an ear canal of an individual and being customizable in-situ to the shape of the ear canal, and cavum concha, using a settable compound. The device includes a core-form with a nipple extending from a platform, the... | 06/22/2004 |
| 6738488 | Protection and solvent washing of in-canal hearing aids An otherwise conventional in-canal hearing aid, including a receiver providing a sound output port typically facing directly towards the ear drum of a user, is provided with a hood disposed between the sound port and the ear drum completely shielding the sound port ... | 05/18/2004 |
| 6724902 | Canal hearing device with tubular insert A canal hearing device with a dual acoustic seal system for preventing feedback while minimizing occlusion effects. The two-part device comprises a main module and an elongated tubular insert for conducting sound to the tympanic membrane and sealing within the bony ... | 04/20/2004 |
| 6671381 | Sleeve for hearing aids, and a method and apparatus for testing hearing A sleeve is made available for hearing aids, hearing aids provided therewith, and parts. The sleeve is in the form of a flexible tube or sack and is placed over the hearing aid, (in-the-ear unit) which is inserted in the auditory channel or that part of t... | 12/30/2003 |
| 6585075 | Hearing aid having hard mounted speaker and energy absorbing tip A hearing aid having a speaker that is hard mounted to the housing of the hearing aid and has an energy absorbing tip at that end of the hearing aid that is innermost in the ear and closest to the ear canal of the person wearing the hearing aid. According... | 07/01/2003 |
| 6574343 | Hearing aid The invention relates to a hearing aid comprising an acoustic input aperture (SE) and an acoustic output aperture (SA), and a cover element (DE) covering the acoustic input aperture (SE). In the invention, the cover element (DE) is received in the hearing... | 06/03/2003 |
| 6532295 | Method for fitting a universal hearing device shell and conformal tip in an ear canal A method for fitting a hearing device in an ear canal, comprises, providing a receiver module sized and shaped to fit in any of a wide range of ear canals, selecting a conformal tip from a plurality of differently sized conformal tips, each conformal tip ... | 03/11/2003 |
| 6520282 | Sound enhancement mechanism for speaker sound system A sound enhancement system is provided including a preexisting system and a secondary enclosure with an internal space; wherein sound emanating from the loudspeaker system when the loudspeaker system is within the internal space, is enhanced (baffled) by ... | 02/18/2003 |
| 6449373 | Protection and solvent washing of in-canal hearing aids An otherwise conventional in-canal hearing aid, including a receiver providing a sound output port typically facing directly towards the ear drum of a user, is provided with a hood disposed between the sound port and the ear drum completely shielding the ... | 09/10/2002 |
| 6134333 | Disposable oleophobic and hydrophobic barrier for a hearing aid A cerumen barrier removable from a retaining ring in a hearing aid shell comprises an endcap disposed in the retaining ring, wherein the endcap has a sound passage with a first opening and a second opening, and the first opening is positioned above a soun... | 10/17/2000 |
| 6129174 | Minimal contact replaceable acoustic coupler An acoustic coupler adapted for use with an intracanal receiver module can be deeply inserted into the ear canal of the user while making minimal contact with the walls of the ear canal. The minimal contact feature of the invention allows the acoustic cou... | 10/10/2000 |
| 6105713 | Cover movable by rotation forming a cerumen barrier in a hearing aid A movable cover that pivots over a receiver port in the hearing aid shell forms a cerumen barrier. Alternatively, the cerumen barrier includes both a movable cover that pivots over a receiver port in the hearing aid shell and a deformable grommet and memb... | 08/22/2000 |
| 6000492 | Cerumen block for sound delivery system An earpiece for a sound delivery system has a sound output port for delivering sound into the ear canal of the user. A cerumen block is provided to prevent cerumen or earwax from blocking the sound output port of the earpiece. The cerumen block is formed ... | 12/14/1999 |
| 5982908 | Ear wax collection device for a hearing aid An in-the-ear hearing aid in accordance with the present invention has a housing shaped to fit within a user's ear, and a sound passageway within the housing. The sound passageway includes a fixed tube communicating with a receiver. The sound passageway f... | 11/09/1999 |
| 5970157 | Press-fit ear wax barrier An ear wax barrier for an in-the-ear or in-the-canal type hearing aid device positioned at least in part between a receiver output port and a shell acoustic output port includes a substantially cylindrical housing having a barbed portion for press-fitting... | 10/19/1999 |
| 5864628 | Press-fit sound damping structure An acoustic attenuator and wax barrier for a hearing aid includes a substantially cylindrical, color coded, housing having a barbed portion for press-fitting the barrier into position. As the channel diameters increase, an associated peak output frequency... | 01/26/1999 |
| 5430801 | Hearing aid A hearing aid including a microphone fitted through a small hole in the conchal bowl of the user to receive sound impinging the anterior side of the pinna, an electronics package worn behind the pinna that receives the sound from the microphone, and a sou... | 07/04/1995 |
| 5327500 | Cerumen barrier for custom in the ear type hearing intruments A cerumen barrier for a custom, in the ear type hearing instrument which consists, in combination, of a sound outlet base and a barrier door which prevents ear wax from reaching and damaging the internal components of a hearing instrument, particularly th... | 07/05/1994 |
| 5220612 | Non-occludable transducers for in-the-ear applications An in-the-ear electroacoustic transducer is constructed to limit the effect of accretion of cerumen on acoustically active surfaces: to prevent cerumen from plugging passages for acoustical energy to the tympanic membrane and to facilitate the removal of ... | 06/15/1993 |
| 5166659 | Hearing aid with cerumen collection cavity An improved hearing aid that reduces occlusion caused by the accumulation of ear wax includes a hearing aid body, an amplifier disposed within the hearing aid body, and an ear canal body adapted for insertion in the auditory canal of a human ear. The ear ... | 11/24/1992 |
| 5068901 | Dual outlet passage hearing aid transducer An improved high-frequency characteristic is achieved, in an otherwise conventional hearing aid receiver transducer, by connecting each of the acoustic chambers on the two sides of the receiver diaphragm, in the receiver housing, directly through an outle... | 11/26/1991 |
| 4987597 | Apparatus for closing openings of a hearing aid or an ear adaptor for hearing aids An apparatus for closing an opening of a hearing aid or an ear adaptor for a hearing aid, particularly openings such as sound entry openings, sound exit openings and aeration openings utilizes a micro-porous membrane of an anti-adhesive material which is ... | 01/22/1991 |
| 4984277 | Protection element for all-in-the-ear hearing aid A protection element for the sound conduction channel (6) on an all-in-the-ear hearing aid (1) with a hearing aid housing (2) arranged to suit the user's auditory canal comprises an exchangeable filter elenment (3) which is snapped firmly on a sound condu... | 01/08/1991 |
| 4972488 | Ear wax barrier and acoustic attenuator for a hearing aid A barrier for a hearing aid that combines the feature of both (1) preventing ear wax from contacting and damaging the internal components of a hearing aid or hearing aid receiver and (2) variably dampening the acoustic response of the hearing aid. The bar... | 11/20/1990 |
| 4953215 | Arrangement to prevent the intrusion of foreign matter into an electro-acoustical transducer In an arrangement to prevent the intrusion of foreign matter into a transducer which extends with a projection provided with an opening into a sound channel of a hearing aid, a reduced need for space as well as simpler construction, compared with the stat... | 08/28/1990 |
| 4945569 | Hearing aid An earwax-protective device having a yoke joined with an auditory passage portion of a hearing aid which makes it possible to easily remove accumulations of earwax without damaging sensitive electrical components in the hearing aid.... | 07/31/1990 |
| 4879750 | Hearing aid with cerumen trapping gap A hearing aid has a sound-conducting tube, the distal end of which extends into the auditory meatus. The tube is mounted to an earpiece which closes off the ear canal. A protrusion surrounds the distal end and extends from the earpiece. A cap is detachabl... | 11/07/1989 |
| 4870689 | Ear wax barrier for a hearing aid An ear wax barrier for a hearing aid to prevent ear wax from contacting and damaging the internal components of a hearing aid or hearing aid receiver. The barrier includes a housing defining a central axis of passage, as well as a plurality of projections... | 09/26/1989 |
| 4867267 | Hearing aid transducer This invention is concerned with a hearing aid including a microphone, an adjustable amplifier, and an acoustic transducer positioned within a first, large acoustic chamber defined by an in-the-ear housing. The acoustic transducer is in communication with... | 09/19/1989 |
| 4840249 | Apparatus for srewing a cover onto a screw neck of a hearing aid A rotary shaft is provided with at least two pins at its one end, these two pins fitting into two holes of the cover. The other end of the rotary shaft carries a polygonal screw pin for screwing on the adaptor.... | 06/20/1989 |
| 4800982 | Cleanable in-the-ear electroacoustic transducer A hearing aid including a microphone, an adjustable amplifier, and a transducer comprising an acoustic driver driving a diaphragm disposed within an acoustic chamber, all mounted in an in-the-ear housing having a sound outlet passage leading from the acou... | 01/31/1989 |
| 4706778 | In-the-ear-canal hearing aid The invention relates to an in-the-ear hearing aid for people with impaired or defective hearing, with an ear-piece containing a microphone, amplifier, telephone, battery compartment with battery, on/off switch and volume control and closed by a cover pla... | 11/17/1987 |
| 4607720 | Hearing aid To provide a mass-producible hearing aid adapted to be inserted into the external passage of the vast majority of human ears while leaving the concha unencumbered and without requiring individual impressions, the invention proposes a hearing aid which com... | 08/26/1986 |
| 4553627 | Hearing aid wax guard A wax guard for a hearing aid is mushroom-shaped, having a cross passage through its head which intersects an axial passage in its stem. The axial passage contains an acoustic filter terminating the axial passage in its characteristic impedance. The cross... | 11/19/1985 |
