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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...
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4834211 |
Anchoring element for in-the-ear devices
An anchoring element for a device for use in the ear canal of a wearer includes a body defining a cavity for transmission of external sound through the ear canal to the wearer and having a first...
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4830139 |
Hearing aid holding means and method of using same
Means for holding a hearing aid speaker in place in the inner portion of the outer ear of a hearing aid user comprises a sealant material conformable both to the inner portion of the outer ear and...
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4817607 |
Magnetic ossicular replacement prosthesis
An ossicular replacement prosthesis containing a magnet in the head of the prosthesis so that when used with a magnetic induction hearing aid having a coil producing a magnetic field, the hearing...
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4813430 |
Microphonic probe tube mounting for real ear measurements
A mounting apparatus for mounting a microphonic probe tube on a patient includes a headband adapted to fit securely on the head of a patient and an adjusting arm which extends outwardly from the...
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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...
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4763752 |
Mount for a sound transducer, particularly an earphone
A sound transducer, particularly an earphone, is buttoned into a sound opening of an in-the-ear hearing aid housing by means of an elastic hose part seated on a sound connector of the sound...
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4729451 |
Receiver suspension and acoustic porting system
A system for suspending a receiver in a hearing aid and acoustically linking the receiver with the region external to the hearing aid. A shaped mandrel is placed inside the shell of the hearing aid...
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4724922 |
Acoustic earpiece
An improved acoustic earpiece of the type used to transmit sound mechanically from a sound source to the ear drum of a listener is disclosed herein. The acoustic earpiece includes a tube and a...
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4716985 |
In-the-ear hearing aid
The housing of the hearing aid comprises a distal, bead-like head part having a planar face on which an arched face plate is seated and comprises a proximal, thinner tail part. The angle α between...
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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,...
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4702345 |
Hearing aid retention device
In a hearing aid of the type, including a battery containing housing supported rearwardly of the ear auricle by an elongated tube joining one end of the housing to an ear opening contained ear...
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4679650 |
Hearing aid ear mold end piece for the auditory canal and hearing aid ear mold
The invention relates to a hearing aid ear mold end piece for the auditory canal, having an outer circumference matching the contours of the auditory canal and a sound discharge opening, whereby...
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4658931 |
Evacuated plenum hearing protection
Protection apparatus for excluding undesirable noise from the eardrum and inner ear of a user. The disclosed apparatus includes an evacuated, transmission medium-free, cavity for attenuating the...
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4657106 |
"Ear" hearing aid
A hearing aid adapted to be worn in the ear, comprises a housing receiving a sound transducer and a sound amplifier, the housing being shaped to fit into the ear and having an upper rim, a mounting...
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4652414 |
Process for manufacturing an ear fitted acoustical hearing aid
A hollow shell-type hearing aid is prepared from an impression of the ear. A mold is formed from the impression. An opening is cut in the mold and the mold is filled through the opening with...
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4633971 |
Stethoscope with high frequency filter
A low-pass filter is incorporated into the binaural tube of a stethoscope to selectively attenuate high frequency noise. The filter includes a small diameter inertance tube communicating with a...
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4620605 |
Suspension for electro-acoustical transducers
A moulded suspension for an electro-acoustic transducer in the form of a microphone or a receiver has three regions. A transducer supporting region fits closely around the transducer. A tubular...
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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...
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4585089 |
Coupling element for a hearing aid
A coupling element for establishing acoustic connection between a cylindrical hearing aid placed in the concha and a custom made ear plug placed in the auditory canal is formed by a disc-shaped...
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4554993 |
Inflight headset for civil aircraft
The present invention relates to an inflight headset for civil aircraft and in particular to one comprising a pair of main body portions each having a cylindrical member formed integrally...
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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...
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4540063 |
Sound wave attenuation device
A sound attenuation device is disclosed which is capable of simultaneously attenuating sound waves of both high and low frequencies bands while leaving other frequencies undisturbed. The device is...
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4472342 |
Manufacture of a body cavity insert
A method of making a body cavity insert, e.g. an ear insert, comprises deforming by pressure a pressure deformable sheet of material over an impression of a body cavity, e.g. an ear canal, and...
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4443668 |
Earplug mounting device with audio passageway
An earplug mounting device for insertion into the human ear adapted to support electronic telecommunications equipment, other audio equipment or visual aids is disclosed. A main body portion of...
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4441576 |
Nonlinear passive acoustic filtering
In an ear muff intended for protection against excessive noise exposure, the passive means according to this invention automatically and continuously varies the amount of reduction provided for the...
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4417104 |
Plug for miniature receiver
Plug for miniature receiver, especially for pocket hearing aids for the hard-of-hearing, with a plug body (7) and at least one plug pin (9) projecting out of the plug body (7). In order to avoid a...
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4407389 |
Vented acoustic ear mold for hearing aids
An acoustic ear mold insertable into the ear of an individual with impaired hearing and used in conjunction with a hearing aid having a central metal tube surrounded by a larger diameter metal tube...
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4392547 |
Hearing aid earmolds
A resonant earmold for amplifying selected frequencies of the sound signal introduced into the earmold. The path for sound through the earmold includes transversely disposed, off-axis elongated...
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4349083 |
Acoustic ear mold
An acoustic ear mold for intensifying sound pressure for an acoustic signal derived from an electronic hearing aid worn by a patient, characterized by an ear canal component having defined therein...
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4314553 |
Earplug and earplug set
An earplug comprising a stem portion and a front portion mounted on the stem portion. The front portion is conically shaped and disposed such that the inner surface of the front portion is spaced...
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4311206 |
Hearing aid ear mold with improved discrimination
An improved type of ear mold which is used with a hearing aid of conventional design, but is provided with an inner chamber, to which sound is communicated from the hearing aid through a plastic...
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4299303 |
Noise attenuating stethoscope
A noise attenuating stethoscope is coupled to a noise attenuating headset having first and second sound attenuating ear cups which are coupled to the ends of a headband. A pair of ear tubes extends...
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4261432 |
Airline earphone structure
An acoustically driven earphone for use with entertainment systems in airplanes which transmits acoustical energy from a transducer to the user's ear. The earphones are formed from two resilient...
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4246776 |
Leak scope for detecting leaks in plumbing equipment
A sturdy, portable apparatus for detecting water leaks in plumbing equipment consisting of an elongated rod having two upstanding portions and a third portion bent at a 90° angle to the upstanding...
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4223189 |
Sound dampening earplug mounting device
An earplug mounting device individually molded to the shape of a user's ear is adapted to fit tightly therein and support a forwardly extending boom from which can be suspended audio or visual aids...
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4200169 |
Stethoscope
This invention relates to a stethoscope having improved acoustical properties. The improvement comprises twin, smooth-walled sound pathways extending from the chestpiece to the ear tips which are...
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4193396 |
Paired earplug construction
Disclosed herein is a tethered earplug construction comprising a pair of plasticized thermoplastic foam earplugs tethered together by one or more flexible plasticized thermoplastic cord elements....
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4149610 |
Acoustic headsets
An acoustic headset having a pair of elongated channel structures for carrying sound tubes which are provided with ear pieces situated adjacent upper end regions of the channel structures. These...
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4133984 |
Plug-type hearing device
A plug-type hearing device comprising a sound-leading portion being inserted into the auditory miatus, a first envelope attached around the sound-leading portion, a second envelope being positioned...
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4130741 |
Hearing aid reliner and apparatus for relining hearing aid ear molds
For the ear mold which fits in the ear canal of the ear of a wearer of a hearing aid, a reliner to hermetically seal between the surface of the ear mold and the tissues of a wearer to eliminate...
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4064965 |
Stethoscope
A stethoscope having a plurality of connector plugs positioned between the head set unit and the sound pick-up diaphragm unit wherein the connector plugs are removably attached to each other by a...
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4055233 |
Ear coupler
A self-forming ear plug element for use with a stethoscope type sound tube installation for transmitting audio sound to the ear and rejecting ambient noise. A conical portion having a...
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4029169 |
Acoustic yoke
A "U" shaped yoke for retaining a pair of ear couplers to the ears of an individual at a minimum effective pressure in an acoustic system. A pair of right-angle horns carry the ear couplers and are...
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4011925 |
Stethoscope
The present invention relates to stethoscopes of the type commonly employed by air line passengers for use with entertaining sound apparatus and is concerned primarily with a stethoscope which may...
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4010820 |
Acoustic ear mold for hearing aid
This disclosure describes an acoustic ear mold insertable into the ear of an individual with impaired hearing and used in conjunction with a hearing aid. Inserted into the molded portion of the ear...
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4006796 |
Earpiece which substantially consists of a thin-walled flexible capsule filled with a liquid medium
An earpiece which takes the form of a pouch made of a plastics foil which surrounds a less pliant plastics tube in an airtight manner and is filled with a sluggishly moving jelly-like paste. A not...
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3993161 |
Acoustic headsets
The described headsets have earpieces at the ends of acoustic tubing, the tubes being shaped about the wearer's head by a resilient frame that biases the earpieces against the wearer's outer ears....
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3935401 |
Earpiece for acoustic headset
An earpiece having a tubular hub for receiving a sound-transmitting tube has a flange on an end of the hub about a central passage, comprising radiating ribs which are mutually separated by...
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3934100 |
Acoustic coupler for use with auditory equipment
The disclosure is directed to an elongated and tapered, bulb-like hollow housing which is constructed and arranged to fit in the outer ear of the wearer having a plurality of openings formed...
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