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| Number | Title | Issue Date |
| 5389747 | Stethoscope A stethoscope head comprises a bell housing,for resonating, a diaphragm arrangement for sound communication, and a user operable selector control for selectively providing an opening in the diaphragm.... | 02/14/1995 |
| 5298692 | Earpiece for insertion in an ear canal, and an earphone, microphone, and earphone/microphone combination comprising the same An earpiece for insertion in an ear canal as a part of an earphone, an ear mounted microphone, an earphone/microphone combination or the like. The earpiece comprises a body part suitable for housing an earphone transducer and/or a solid vibration pickup, ... | 03/29/1994 |
| 5298691 | Soiling resistant banded earplug A band earplug apparatus is described, of the type which includes a pair of earplug devices (20, 22) lying on the ends of a band (12) that fits halfway about a person's head, which avoids soiling of the earplug devices when the band is laid on a dirty sur... | 03/29/1994 |
| 5252787 | Stethoscope A stethoscope head is combined with a watch having a sweeping second hand. A watch support member 30 extends from the stethoscope housing 20. The watch 32 rests upon the watch support member 30. A watch housing 38 encases the watch 32 and is secured to th... | 10/12/1993 |
| 5204500 | Ergonometric stethoscope chestpiece An ergonometric chestpiece for a stethoscope adapted to receive auscultatory sounds from a body and adapted to be coupled to an earpiece for a user. The chestpiece is adapted to be grasped by a thumb and at least one finger of the user. The chestpiece has... | 04/20/1993 |
| 5132518 | Apparatus for warming cold medical diagnostic instruments such as stethoscopes An apparatus for warming medical instruments, such as a stethoscope, includes a wall mountable, multi-walled, vented housing having a front access opening closed by a hinged translucent panel and an open bottom. A reflective, flexible metal liner having a... | 07/21/1992 |
| 5022487 | Stethoscope A stethoscope includes a sound pickup and a reverberation chamber defined in a housing. The reverberation chamber is acoustically connected to binaurals through a connecting tubing. The reverberation chamber includes at least one sound inlet opening and t... | 06/11/1991 |
| 4997055 | Multiple channel stethoscope The present invention is a stethoscope which provides the user with continuous access to physiologic sounds. The stethoscope consists of multiple, lightweight, disposable sound receiving sensors and shutoff valves which allow selective auscultation of spe... | 03/05/1991 |
| 4995473 | Stethoscope with diaphragm head adapter A stethoscope head adapter for a diaphragm microphone is provided. The adapter creates a smaller surface area for the diaphragm microphone without diminishing the acoustical reception by the diaphragm of normal or pathological conditions in a patient. The... | 02/26/1991 |
| 4928786 | Self-sealing dual stethoscope head A self-sealing dual stethoscope head including a low frequency sound receiving bell, a high frequency sound receiving diaphragm, a selectively movable valve including a cylindrical valve seat having a first acoustical passage in sound communication with t... | 05/29/1990 |
| 4903794 | Acoustical amplifying stethoscope A stethoscope for auscultating sounds from a subject, the stethoscope including a housing, a curvilinear convex diaphragm supported on the housing for interfacing with the site being auscultated and for receiving sounds therefrom, an enclosed acoustic cha... | 02/27/1990 |
| 4871046 | Disposable stethoscope head shield A disposable shield for stethoscope heads, preventing the transfer of disease or other contaminants by repeated use of the stethoscope. The shield or envelope is formed from a single piece of plastic material in which the sides are folded toward each othe... | 10/03/1989 |
| 4867265 | Pre-cordial stethoscope cover A cover for a pre-cordial stethoscope provides protection for the stethoscope and reduces external noise contamination. The cover fits closely on the stethoscope body and includes a slot for receiving a tubular fitting which extends from the stethoscope b... | 09/19/1989 |
| 4867268 | Sanitary stethoscope A sanitary stethoscope which prevents carrying potentially infectious matter from one patient to the next comprises a modified stethoscope head or diaphragm-retaining ring and a quick-insert/quick-release replaceable diaphragm. The diaphragm is suitably h... | 09/19/1989 |
| 4823906 | Stethoscope having a body contact piece provided with two alternatively employed auscultation heads A double-headed body contact piece has first and second acoustic connector portions connected to first and second acoustic passages of a stethoscope-tube attachment, and further has a first, non-differential auscultation head with a single auscultation ch... | 04/25/1989 |
| 4776426 | Stethoscope A stethoscope consisting of a pair of flexible ear tubes and a chest piece divided by a partition into two sound receiving chambers. These chambers are separately communicated with the right and left ear tubes, respectively.... | 10/11/1988 |
| 4770270 | Stethoscope chestpiece with a sound conveying indexing detent A stethoscope chestpiece has a body member, a tubular shaft, and an indexing detent. The body has a plurality of microphones each of which has a opening at its apex and a central recess. The tubular shaft is rotably secured within the central recess and h... | 09/13/1988 |
| 4706777 | Stethoscope A stethoscope has two sound transmitting tubular elements with the ends insertable into ears of an examining person, and two sound receiving end pieces applicable onto a body at a distance from one another and communicating with the sound transmitting tub... | 11/17/1987 |
| 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 its sound inlet channel with an outlet channel from the ba... | 06/02/1987 |
| 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 to releasably lock the insert into the bell. The insert r... | 03/05/1985 |
| 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 head. The diaphragm is contacted with the head by the pre... | 10/09/1984 |
| 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 examination. The cover 10 can be disposed or resterilized for furthe... | 07/24/1984 |
| 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 airtight cover for the cavity. The mass of the head member cau... | 07/10/1984 |
| 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 located within the first recess. The suspension member aff... | 04/03/1984 |
| 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 he produces on an electrical-type guitar without connecti... | 01/31/1984 |
| 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 insertion of the plug, opening acoustic ports, and also mov... | 07/26/1983 |
| 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 controlled by positioning a vent in a side wall of the resona... | 06/14/1983 |
| 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 laterally through an aperture in the side of each ear cup... | 11/10/1981 |
| 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 the patient through a probe.... | 06/02/1981 |
| 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 plastic tubes each having one end connected to the transduce... | 04/14/1981 |
| 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 aligning the shaft with the selected microphone are combined ... | 12/16/1980 |
| 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 than seventy degrees, and preferably at thirty degrees. A s... | 07/15/1980 |
| 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 collector. The sound collector further comprises a damper f... | 12/11/1979 |
| 4027116 | Headphone A headphone supported at the ear position for reproducing sound comprising (a) a frame, (b) a cone membrane, (c) at least one opening provided in the frame to connect the space, defined between the front face of the frame and the rear face of the cone mem... | 05/31/1977 |
| 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 be adjusted for comfort when applied to and suspended from... | 03/15/1977 |
| 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 the headphone positioned on the head of a user, forms a co... | 01/25/1977 |
| 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 of the stethoscope head from the patient.... | 04/20/1976 |
| 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. The improved stethoscope has an improved stethoscope chest... | 02/17/1976 |
