|
Match
|
Document |
Document Title |
|
|
7185655 |
Underwater ear prophylactic
The present invention provides a prophylactic for the ear during activities in and around water or other liquid medium where the ear is subject to infection and barotraumas. It has an outer ear...
|
|
|
6082485 |
Adjustable earplug
An earplug has a rotationally adjustable gating mechanism for adjustable attenuation of treble sounds. The plug includes a conventional earplug foam body for conforming to and wedging in the ear...
|
|
|
6068079 |
Acoustic valve capable of selective and non-linear filtering of sound
Acoustic valve capable of selective and non-linear filtering of sound and placeable in a perforated ear plug. The acoustic valve consists of a tube enclosing two rigid disks axially spaced opposite...
|
|
|
4896679 |
Method and apparatus for the exclusion of sound and water from the auditory canal
A method and apparatus for providing improved protection for the auditory systems of persons who may be subjected to excessive sound pressures or concussive shock waves or who may have certain...
|
|
|
4807612 |
Passive ear protector
A passive ear protector device for positioning in the ear of the user for protecting the ear from sounds of high intensity. The device attenuates sound in a manner which tends to preserve the...
|
|
|
4568337 |
Ventilation tube permitting two-way gaseous communication with one-way liquid valve
A myringotomy tube allowing two-way gaseous communication between an external ear canal and a middle ear cavity and only one-way liquid communication from the middle ear cavity to the external ear...
|
|
|
4529057 |
Ear defenders
An ear defender for a headset, the ear defender comprising a rigid shell having holes in a central portion to permit the passage of ambient sound and including a valve mechanism to close the holes...
|
|
|
4326512 |
Composite ventilation tube for the middle ear
A composite ventilation tube is disclosed which is specifically useful for ventilating the middle ear. The tube assembly includes an outer tube formed of inert, slightly flexible material, such as...
|
|
|
4168697 |
Middle ear ventilating tube and method
A ventilating tube and method are provided for maintaining a desired gaseous partial pressure in the middle ear comprising in combination a tube having an axial lumen, means on the tube holding the...
|
|
|
4094303 |
Tympanic membrane vent
The middle ear space is vented through the tympanic membrane by a piece of porous plastic material positioned to extend through the tympanic membrane. The pore size is in the range of 5 to 25...
|
|
|
3916873 |
Valve for tympanic membrane ear surgery
An air-permeable, chemically inert valve used to provide an air passage through the tympanic membrane of the ear. A thin layer of porous teflon covers the outer end of a tube lining a passageway...
|
|
|
RE28560 |
Diaphragm ear valve
A diaphragm ear valve for protection of the ear drum from the injurious percussive and repercussive overpressures of strong sound waves. The ear valve or sound transmitter comprises a flexible...
|
|
|
3842829 |
EAR PROTECTIVE DEVICE
A device to be worn within the external auditory canal for the purpose of protecting the ear from high intensity and impact sounds. Under normal conditions transmission is through a diaphragm with...
|
|
|
3603309 |
EAR MOLD PROTECTOR
This invention relates to a new method of ear protection embodying a combined ear plug and protector, having a medicated salve sealant cavity, and made of resilient material and embodying a...
|
|
|
3335720 |
Valve for sound attenuating device
|
|
|
3080011 |
Ear canal insert
|
|
|
2881759 |
Ear protector
|