Abstract: The adjustable mouth shield device provides an adjustably fitted mouth shield with adjustable headband for secure fit. The adjustable headband is fastened to the padded earpiece. The straight first extension from the earpiece is angled downwardly and forwardly to terminate in a swivel joint providing almost 360 degrees of swivel. The second extension is arced both downwardly and forwardly. The u-shaped mouthpiece is fitted to the adjustable spring mount for horizontal pivot of the mouthpiece. The mouthpiece may, by virtue of the swivel joint and the spring mount, be moved completely away from a user's mouth and, in turn, pivoted and swiveled to be directly in front of the user's mouth. The inward curves at the distal end of the mouthpiece aid in sliding on the disposable pads that shield a user from objects, foods and other materials.

Abstract: The germ and noise filter device is a disposable, hand held filter apparatus that covers the mouth of the user during the exhale phase of a cough. The device comprises: a body with a cavity that houses three micro-filters; a corrugated tube; two one-way valves and a mesh screen. The body can be made of durable plastic material that may be transparent or a combination of many attractive colors. The two one-way valves act as a filter element for the noise that would normally occur. An eyelet is formed on the body to allow the device to be worn about the person. When a cough is eminent, the opening of the device is engaged against the user lips to prevent the transmission of air-borne diseases and reduce the noise of the coughs.

Abstract: A communication device used to talk underwater. The device allows a speaker to fill a mouthpiece (22) with air while underwater and immediately begin speech thus allowing the speaker to start talking underwater with a minimal amount of air expended and not having to fill the device with air before going underwater. The mouthpiece (22) surrounds the mouth and creates an airtight seal between the device and the skin surrounding the mouth (20). Connected to the mouthpiece (22) is an air chamber (23) that is shaped to substantially minimize the amount of acoustic energy, or sound, being reflected back into the speaker's mouth through the mouthpiece (22). At the bottom of the air chamber (23) is a venting area (24) with small perforations to allow the air to escape the device in small and relatively quiet bubbles.

Abstract: A feedback device providing immediate feedback to a user. The feedback device includes a main hollow tubular body having a first transmitter end and an opposite second receiver end. The feedback device is “C” shaped and sized to comfortably allow the user to hold the transmitter end close to his mouth while simultaneously positioning the receiver end close to the ear of the user. The user speaks into the transmitter end. The sounds emitted by the user are amplified within the main tubular body and directed through the receiver end to the ear of the user. The feedback device provides immediate feedback for all sounds produced by the user. The feedback device may be used to enhance the reading and speaking ability of the user.

Abstract: A cough silencer device comprising a body having a cavity therein with a mouth portion on a first end and an open second end. An internal muffling baffling system is placed within the cavity of the body and is fluidly connected to the mouth portion. An end cap is attachable to the open second end of the body to retain the internal muffling baffling system within the cavity. A person can insert the mouth portion into their mouth and cough allowing the internal muffling baffling system to silence the cough. The cough silencer device can further include an elongate tube having a first end attached to the mouth portion of the body. A mouthpiece is affixed to a second end of the elongate tube, so that the mouth of the person can engage the mouthpiece.

Abstract: A personal removable mouthpiece can be slipped over the mouthpiece of a voice amplification instrument. An aperture in the removable mouthpiece allows a user to use the voice amplification instrument without the user's mouth coming into contact with the instrument. When a second user begins using the instrument, the removable mouthpiece is replaced thereby preventing the second user from being exposed to any communicable disease of the first user. The removable mouthpiece includes inner and outer annular walls with an annular opening defined therebetween into which the mouthpiece of the voice amplification instrument is inserted. The inner and outer annular walls are connected at bottom ends thereof by a bottom annular wall.

Abstract: A device for talking underwater comprising a body made of a rigid material with a large opening and a small opening. The large opening has a thin diaphragm cover and the small opening has a mouth fitting for forming an airtight seal around a users mouth. Speaking into the device through the mouth fitting sends sound waves to the diaphragm which transmits the sound vibrations to the water. One-way blow valves in the side of the body allow exhaled air to escape while speaking into the device. The blow valves do not allow water to enter the body. The blow valves are constructed such that bubbles released to the surrounding water are too small to produce excessive amounts of disruptive noise. The body is preferably cone-shaped, but can be any shape, provided it has large and small openings.

Abstract: A vocal communication snorkel includes a hollow body having a breather tube, adapted to extend above the water, coupled thereto and a mouthpiece adapted to be held by the lips of a snorkeler. The body has a pair of inwardly curved, spherically shaped diaphragms of thin plastic material that are tuned to resonance within the frequency band of 1500 to 3000 Hertz in water. The mouthpiece includes a passageway that is coupled to the body and a pair of flexible lips, that are closable by the lips of the snorkeler for articulating plosive sounds. A readily collapsible bubble, formed in the passageway and engageable by the lower lip of the snorkeler, facilitates closure of the passageway under pressure from the snorkeler's lower lip.

Abstract: A vocal sound muffling device having an elongated tubular body providing an elongated tubular cavity, a mouthpiece on one end of the body providing an inlet into the cavity for vocal sound waves and atomized fluids, a closure on the other end of the body having a fluid outlet therein for regulating fluid flow from the cavity, and cellular material in the cavity intermediate the inlet and outlet for attenuating the vocal sound waves.

Abstract: An underwater communicator comprising a transmitter for transmitting acoustical energy between mediums having differing impedance. The transmitter includes first and second ends. The first end is exposed to a first medium while the second end is exposed to a second medium. In the preferred embodiment, the transmitter is formed from a material having a substantially identical impedance to the second medium. An acoustical lens is positioned adjacent the first end of the transmitter. The acoustical lens has a substantially planar front face and a substantially concave shaped rear face. The acoustical lens includes a plurality of spaced vertically extending plates. The vertically extending plates form a substantially right angle with the front face of the acoustical lens. A plurality of spaced plates intersect the vertically extending plates and form an acute angle with the front face of the acoustical lens, thereby forming a plurality of inclined passageways.

Abstract: A human sound muffler and indicator for placement around the mouth of a user to absorb most of the sound emanating from the user's mouth including a microphone and associated electrical circuit for receiving unabsorbed sound and providing an indication of the intensity of the unabsorbed sound.

Abstract: A vocal muffler for muffling the vocalization of a human, especially a crying baby. The muffler comprises a globe-like member having a chamber provided with a port positionable over the baby's mouth and via which the baby's crying enters the chamber to exit through muffled port means in bypassing relation to an inhalation port. A valve in the chamber opens the inhalation port during inhalation by the baby and closes the port in response to exhalation. The bypassing port means includes sound-attenuating means for muffling the baby's cries. The valve is contained loosely in a cage adjacent to the inhalation port so that when the muffler is not used as a muffler, the ball will rattle in the cage and the muffler serves as a toy rattle.

Abstract: A device for allowing for spoken communication between a pregnant woman and her fetus. The device has a speaking tube component connected at one of its ends to a mouthpiece component and at its other end to a stomach-piece, megaphone-type component. The speaking tube component is made of flexible and soft plastic to allow for reconfiguration to suit the size and stage of pregnancy of the woman. The stomach-piece component has a canted annular edge surface to allow flush positioning against the stomach. The pregnant woman speaks into the mouthpiece, the sounds being amplified and sent to the megaphone-type component positioned against the abdomen so the fetus may hear.

Abstract: A respirator speech transmitter has a projecting tube with a one-way valve at one end and the other end being covered by a baffle having an inner skirt extending around the tube. An outer skirt extends from the tube to surround the inner skirt so that an annular convoluted passageway which increases in annular width as it extends from the tube formed between the outer surface of the tube, the inner skirt and the outer skirt. This convoluted passageway has excellent acoustic properties yet prevents ingress of contaminants. In a modification the valve is at the same end of the tube as the baffle.

Abstract: A device for transmitting sound from a speaker in a first area, such as a sterile or clean field, to a second area such as a nonsterile or nonclean field. The device includes a sound conduit having an inlet and an outlet and being of sufficient length to permit placement of the inlet in the first area and placement of the outlet in the second area, means, such as a filter mask, for securing the inlet in an operative position relative to the speaker's mouth, and a coupler connected to the outlet. A microphone and means for adjusting the sound pressure transmitted through the conduit are preferably also provided.

Abstract: An underwater voice communicator in which the preferred embodiment comprises a pair of tapered tubes in communication with a diver's mouth. The tubes are constructed of a material having a sound impedance similar to the sound impedance of water. Sound energy issuing from the mouth of a diver is reflected down the length of the tapered tubes to an area of the tube that concentrates the sound for injection into the surrounding water.

Abstract: A crash helmet for use by motorcycle drivers or riders has a rigid shell; a first flexible acoustic tube a first section of which extends into and has a bell horn in the region of the mouth-protecting part of the shell, and a second section extending from the shell through the opening in the neck-surrounding part of the shell; a second flexible acoustic tube a first section of which extends into and has a sound-intensifying terminal portion in the region of an ear-protecting part of the shell, and a second section extending outwardly through the aforementioned opening of the shell; first and second additional flexible acoustic tubes respectively corresponding to the second and first tubes and having first sections installed in the shell of a second crash helmet; and a quick-release coupling respectively connecting the second sections of the first and second tubes with the second sections of the second and first additional tubes.

Abstract: A microphone holding device which holds a microphone in a casing so that the microphone is disposed substantially perpendicularly to the surface of a concave of a helmet, etc. for receiving the microphone in it. Thus, both the sound collecting portion and the opposed end of the microphone are kept freely communicated with the outside of the casing.