Bizarre Patents
A new toilet tank assembly aquarium for housing aquatic creatures.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7187778 | Neurofuzzy based device for programmable hearing aids A neurofuzzy device is described that provides a fuzzy logic based user-machine interface for optimal fitting of programmable hearing prosthesis using a neural network that generates targets to be matched by the hearing prosthesis based on individual audiometric and... | 03/06/2007 |
| 7130437 | Compressible hearing aid A compressible hearing aid includes an exterior deformable skin which bounds an internal region which is filled, at least in part, with an open-cell foam, the foam can be wrapped around or molded to contain an audio output transducer. The skin is not self-supporting... | 10/31/2006 |
| 6728384 | Hearing aid connection system A cable incorporates at least one flexible conductor and a non-conductive, elongated, strain relieving member bound mechanically to the conductor. The strain relieving member is mechanically attached between two relatively movable components. The electrical conducto... | 04/27/2004 |
| 6674867 | Neurofuzzy based device for programmable hearing aids A neurofuzzy device is described that provides a fuzzy logic based user-machine interface for optimal fitting of programmable hearing prosthesis using a neural network that generates targets to be matched by the hearing prosthesis based on individual audi... | 01/06/2004 |
| 6584207 | Molded hearing aid housing A method of processing an impression of a portion of a user's ear canal that produces a flexible hearing aid housing which duplicates the shape of at least a portion of that impression. A female mold is created using the previously obtained ear impression... | 06/24/2003 |
| 6393130 | Deformable, multi-material hearing aid housing A compliant hearing aid has a housing formed with an exterior peripheral layer of a deformable material. Electronic components located within the deformable layer can be encapsulated, at least in part, with a second deformable material. The second materia... | 05/21/2002 |
| 6167141 | Multimaterial hearing aid housing A hearing aid housing which is formed of a substantially rigid plastic material carries a deformable compliant region. The region, which could be in the form of an annular seal, or which could extend in part axially along the housing improves user comfort... | 12/26/2000 |
| 6097825 | Hearing aids with standardized spheroidal housings Hearing aids having housings formed as standardized shapes include electronic components. The components can be separate or integrated into a single unit. The housings can be formed as one or more spheroidal-like surfaces of revolution which are symmetric... | 08/01/2000 |
| 5991419 | Bilateral signal processing prosthesis A bilateral hearing instrument incorporates first and second units which could, for example, be worn by an individual having hearing deficiencies in both ears. One unit includes an audio input transducer coupled to a transceiver. The second unit includes ... | 11/23/1999 |
| 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 |
| 5732396 | Hearing aid screening device having an elongated spacing element which extends therefrom providing for ingress of background noise A hand held hearing screening device includes a housing with a spacing element extending therefrom. Word generating circuitry is carried within the housing. A control switch on the housing cycles the generating circuitry to produce one or more output word... | 03/24/1998 |
| 5712918 | 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... | 01/27/1998 |
| 5243318 | Low noise precision resistor A low noise miniature potentiometer utilizes thick film deposits of resistive material which extend adjacent to deposits of conductive material. The conductive region is sliced into a plurality of spaced-apart conductive elements. Electrical paths through... | 09/07/1993 |
| 5185802 | Modular hearing aid system A modular hearing aid system has an exterior shell and a removable interior housing. The shell can be customized for a user's right or left ear. The housing has a standard, bilateral shape useable with either ear. The housing can be removably locked to th... | 02/09/1993 |
| 5170434 | Hearing aid with improved noise discrimination A hearing aid that generally provides greater amplification for speech signals than noise signals. The hearing aid includes a microphone, variable highpass filter, transducer, and sensor assembly. The sensor assembly detects the amplitude of a band of low... | 12/08/1992 |
| 5148143 | Precision thick film elements A precision thick film resistor has a deposited thick film conducting layer which is adjacent to and in contact with a deposited thick film resistive layer. A laser scribed line, having a width on the order of 2 mils, separates the conductive region into ... | 09/15/1992 |
| 5014016 | Switching amplifier A high efficiency amplifier circuit includes first and second modulator circuits. The output waveform from the first modulator is modulated by the input electrical signal to be amplified. The output waveform from the second modulator is simultaneously mod... | 05/07/1991 |
| 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 |
| 4952867 | Base bias current compensator A bias current compensator to supply the input bias current of a transistor. The bias current compensator may be used, for example, with the controlled amplifiers used in an automatic gain control system. The bias current compensator prevents bias current... | 08/28/1990 |
| 4926139 | Electronic frequency filter A hearing aid that is compact and efficient and that provides a high degree of control over its frequency response and also over its output level versus input level characteristic. The frequency response control includes an adjustable four pole high pass ... | 05/15/1990 |
| 4922131 | Differential voltage threshold detector A differential voltage threshold detector that may be used in a hearing aid circuit. The configuration includes an inherent differential/full wave operation, without the need for additional circuitry. The detector includes a differential transconductance ... | 05/01/1990 |
| 4912393 | Voltage regulator with variable reference outputs for a hearing aid A voltage regulator for producing first and second reference voltages. The regulator includes first and second transistors, of a first polarity, having coupled emitters, and third and fourth transistors, of a second polarity, having coupled emitters. A fi... | 03/27/1990 |
| 4876499 | Differental voltage controlled exponential current source A current source provides an output current that is substantially exponentially related to a difference between input voltages. The output current is also substantially linearly related to an input current. The current source includes first, second and th... | 10/24/1989 |
| 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 |
| 4860890 | Battery holder An apparatus for storing and dispensing small batteries. The apparatus eases the process of inserting such batteries into small electrical devices. The apparatus includes a plurality of handles, a base member removably attached to each of the handles, and... | 08/29/1989 |
| 4829270 | Compansion system An improved compansion system that more effectively increases the dynamic range of other circuit elements. The system includes both a compression circuit to limit the input signal amplitude for a circuit element, such as a filter, and an expansion circuit... | 05/09/1989 |
| 4792977 | Hearing aid circuit A hearing aid that is compact and efficient and that provides a high degree of control over its frequency response and also over its output level versus input level characteristic. The frequency response control includes an adjustable four pole high pass ... | 12/20/1988 |
| 4647899 | Electrical film resistor An electrical film resistor. The film resistor includes a substrate, resistive film, and first and second terminals. The first terminal includes a first electrode. The second terminal includes second and third electrodes. The second electrode is close to ... | 03/03/1987 |
| 4569812 | Process for making a hearing aid vent An improved process for making a vent for an "in the ear" hearing aid. A cavity is formed which corresponds to the structure of the ear canal and outer ear of the hearing aid user. A molding liquid, such as acrylic, is poured into the cavity. The liquid i... | 02/11/1986 |
| 4551607 | Electrical film resistor An electrical film resistor. The film resistor includes a substrate, resistive film, and first and second terminals. The first terminal includes a first electrode. The second terminal includes second and third electrodes. The second electrode is close to ... | 11/05/1985 |
| 4543453 | Electronic hearing aid control circuit An electronic power control circuit for a hearing aid amplifier. The circuit includes a feedback stage, output stage, and output transducer. The feedback and output stages cooperatively define a current regulator that controls the current of the output st... | 09/24/1985 |
| 4498555 | Hearing aid nubbin and acoustic damper An improved nubbin and acoustic damper for the elimination or production of resonance in the sound transmission tubing of a hearing aid. The nubbin and nubbin sound conduit include a right angle corner. The damper comprises a plug having three body portio... | 02/12/1985 |
| 4451709 | Eye glass hearing aids An eyeglass hearing aid including a channel having a serpentine shape for providing a compact acoustical path for extending the path of sound transmission. A sweat guard is positioned around a volume control aperture formed on the upper surface of the eye... | 05/29/1984 |
| 4393275 | Hearing aid with controllable wide range of frequency response A hearing aid circuitry comprising a high pass filter and a low pass filter, for filtering the sound wave signals to permit adjustment of the gain of the high end of the frequency spectrum relative to its low end. The low pass filter is formed of a differ... | 07/12/1983 |
| 4272591 | Electronic apparatus with battery chamber An improved battery door structure is provided which has advantageous use in compact electronic apparatus, as for example a hearing aid, electronic watch, miniature calculator and other types of small battery operated devices. The structure includes a bod... | 06/09/1981 |
| 4187472 | Amplifier employing matched transistors to provide linear current feedback A feedback transistor, whose base and emitter are connected respectively to the base and emitter of a common emitter output transistor, conducts a collector current which is directly proportional to the output current. The collector current of the feedbac... | 02/05/1980 |
| 4153758 | Hearing aid battery holder A combined package and carrier for a hearing aid battery adapted to securely hold and uniquely position the battery within the holder and the hearing aid and yet provide as small as possible a package. A carrier of molded plastic and functioning as a hand... | 05/08/1979 |
