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4669572 |
Stethoscope
An improved stethoscope having a reversible breastpiece comprises two base discs with an intermediate element relatively rotatable with respect thereto about the axis of the base discs to position...
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D284790 |
Combined stethoscope head and flexible sound tube
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4502562 |
Stethoscope with removable insert
A stethoscope including a bell and a removable insert therefore to better accomodate dimunitive skin areas. The insert is made of a resilient and deformable material. The insert snaps into the bell...
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4475619 |
Stethoscope with floating diaphragm
A stethoscope including a diaphragm head with a loosely affixed diaphragm exhibiting an increased frequency response range. The diaphragm is peripherally supported adjacent the rim of the diaphragm...
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4461368 |
Diaphragm cover for a stethoscope
The surface of a diaphragm 26 is maintained in hygienic condition during examination of successive patients by positioning a clean or sterile diaphragm cover 10 over the diaphragm during...
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4458778 |
Stethoscope construction
A microphone for stethoscopes and the like having a weighted head member with a recessed cavity formed therein. A diaphragm is sealed to the head member with an adhesive material to provide an...
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4440258 |
Tunable stethoscope
A stethoscope head comprising a body member having a first generally bell-shaped recess, a diaphragm, a suspension member for connecting the diaphragm to the body member, and an immobilizing means...
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4428268 |
Self-contained guitar amplification system
The invention is an improved amplification system for guitars that does not require electrical energy. The system is self-contained and intended for use by the guitarist to listen to the music that...
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4395589 |
Electro-acoustical structure
An electro-acoustical structure for switching on and supplying sound to an all-acoustical headset upon the insertion of an acoustic-use plug. A piston-valve is depressed against a spring upon the...
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4387784 |
Stethoscope with improved resonant cavity amplification
One or more resonant cavities are selectively connected to the main sound passage of a stethoscope in order to selectively amplify frequency ranges of interest. The amplified frequency range is...
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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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4270627 |
Stethoscope with probe sound pick-up and resonant cavity amplification
A stethoscope having one or more resonant cavities adjusted to amplify sound frequencies of interest, such as those of the heart or lungs of a patient, and including a pick-up head that contacts...
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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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4239089 |
Stethoscope chestpiece
A two-microphone stethoscope chestpiece is dislcosed wherein the locking mechanism for securing the shaft within the body of the chestpiece against axial movement and the indexing mechanism for...
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4212368 |
Angularly related dual stethoscope head
A stethoscope head having a bell and a diaphragm. The bell is offset from the diaphragm axis. The bell axis intersects the diaphragm axis at an acute angle of not less than twenty degrees or more...
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4177871 |
Toy stethoscope
A toy stethoscope having a resilient sound collector at one end thereof. The sound collector is soft and pliable so as to prevent injury to a person in the event the person is struck by the sound...
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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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4005278 |
Headphone
The headphone preferably comprises a toroidal seal ring which rests against or surrounds the user's ear and is constituted of a soft, yielding, and preferably elastic material. The seal ring, with...
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3951230 |
Multi-sound chamber stethoscope
A stethoscope having a head wherein a diaphragm sound chamber is disposed within a housing which allows for the head to be used as a diaphragm sound chamber or a bell sound chamber without removal...
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3938615 |
Stethoscope consisting of a stethoscope chest piece and a sound mixer
An improved stethoscope for use in medical diagnosis as a listening device to detect sounds within the thoracic cavity is provided having improved sound reception and transmission characteristics....
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3830334 |
SPEAKER ATTACHMENT FOR AUTOMOBILE RADIOS AND THE LIKE
An attachment is provided to form a vibrating air column coupling between the speaker of a radio or the like and the ear of a listener. The device is particularly useful for auto radios and...
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3767003 |
STETHOSCOPES
A stethoscope chest piece comprising a coupling element fitted within a sounding element, the two elements being relatively rotatable about a common axis; the coupling element having at least one...
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3765503 |
MEMBRANE-BREASTPIECE FOR STETHOSCOPES AND METHOD OF MANUFACTURING SAME
A membrane-breastpiece for stethoscopes including a funnel-shaped member having a cylindrical funnel throat portion integrally formed therewith as a protuberance in its upper surface at an angle...
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3712409 |
STETHOSCOPE
In a stethoscope of the type having a body with a pair of opposite cavities one of which is covered by a diaphragm, a switching pin is provided at right angle to the stethoscope axis which...
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3633703 |
MOTORING DEVICES
A stethoscope head made entirely of inexpensive plastic adapted for manufacture as a low-cost item having a diaphragm permanently sealed at its periphery to the diaphragm of a shell. The...
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3543875 |
MONITORING DEVICES
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3515239 |
STETHOSCOPE HEAD CONSTRUCTION
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3472335 |
DUAL STETHOSCOPE MICROPHONE WITH SWITCH-TUBE VALVE
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3377440 |
Rocking armature receivers
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3366198 |
O-ring construction
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3339667 |
Stethoscope
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3249873 |
Miniaturized helmet exponential horn speaker for a portable radio receiver
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3230319 |
Dynamic ear phone
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3215224 |
Stethoscope with o-ring construction
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3197577 |
Wax retarder baffle for hearing aids
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3157750 |
Dynamic headphone
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3109508 |
Acoustic stethoscope
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2829727 |
Combined time indicator and stethoscope chestpiece
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2792902 |
Portable apparatus for detecting and locating noises
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3587776 |
Title is not available
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0989814 |
Title is not available
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3614991 |
Title is not available
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