| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 128867000 | With noise or pressure attenuating means (e.g., dampening, filtering, etc.) | 18 |
| 20090014014 | Ear Cup - An ear cup ( | 01-15-2009 |
| 20100218775 | SOUND-ATTENUATING EARMUFF HAVING ISOLATED DOUBLE-SHELL STRUCTURE - An earmuff assembly with a double-shell structure is disclosed for use with a sound-attenuating circumaural headset. The earmuff assembly comprises a cup-shaped outer shell mounted on a resilient outer sealing ring and a cup-shaped inner shell mounted on a resilient inner sealing ring. By means of the two sealing rings the outer and the inner shells are brought into abutment with the head surface around an ear of a wearer. Both shells are structurally rigid. The sound attenuation performance is maximized by isolating the inner shell from the outer shell. | 09-02-2010 |
| 20100294285 | Dual mode impulse noise protecting earplug (D-182) - A two piece dual mode earplug including an integrally molded elongated member having a nose end and an open rear end and a channel extending through the elongated member. An integrally molded insert member is formed with a base portion and a rod portion and with the rod portion seated within the open rear end of the elongated member. The insert member additionally includes an attenuation filter integrally molded as part of the rod portion and includes first and second openings located on each side of a chamber and with the size and length of the openings together with the chamber providing attenuation of impulse noise while allowing the passage of normal speech through the channel. The insert member also includes the base portion integrally molded to have a third opening larger than the first and second openings in the rod portion and with the first, second and third openings together forming a passageway through the insert member to the channel extending through the elongated member. The insert member further includes an integrally molded cap member and with the cap member having a plug portion of a size complementary to the third opening of the base member. The insertion of the plug portion into the third opening of the base portion seals off the third opening. The positioning of the cap member provides for the earplug being in a first mode of operation where the passageway is open and a second mode of operation where the passageway is closed. | 11-25-2010 |
| 20100307514 | HEARING PROTECTION EARPLUG - In a hearing protection earplug made of foamed material, provision is made in order to attain a defined attenuation and avoid annoyances caused by self-generated sounds, that the surface of the hearing protection earplug has hollows in the area of the inner end face. The hearing protection earplug includes a main body having a central center longitudinal axis and in the direction of this central center longitudinal axis an axially inner end face and an axially outer end face. In the area of the inner end face, surface area enlarging inner hollows are provided, one of which, in the form of an inner central longitudinal hollow, extends inward longitudinally relative to the center longitudinal axis, starting from the inner end face. Also provided is an outer central longitudinal hollow that extends inward longitudinally relative to the center longitudinal axis, starting from the outer end face. The inner and the outer central longitudinal hollow are separated from each other by a continuous transverse wall extending perpendicular to the central center longitudinal axis. | 12-09-2010 |
| 20110126846 | Original ear popper stopper pressurized headset - The present invention device provides a device designed to prevent ear pain or discomfort due to air pressure changes when flying, comprising a head unit resembling a set of lightweight headphones, featuring an adjustable bridge that allows the unit to be worn by adults and children alike. The unique aspects of this product are found in its dual ear cover housings. Each circular covering features a comfortable, padded exterior to fit over the ears; directly behind the padding is a small section of empty space. Extending inward, an area of padded foam provides a blocking agent for air as well as noise. Further helping to protect the ears from changes in air pressure, each side of the Original Ear Popper Stopper is lined with bubble wrap, offering even more insulation. | 06-02-2011 |
| 20110271965 | Multi-Material Hearing Protection Custom Earplug - An earplug formed of a plurality of materials having different hardnesses by use of a multi-material rapid prototyping (RP) system. | 11-10-2011 |
| 20130186415 | HEARING PROTECTOR WITH CURVED SEGMENTS - A hearing protection device is provided including a sound attenuating element and a stem extending from the sound attenuating element, wherein the stem comprises multiple curved segments. | 07-25-2013 |
| 20140014121 | PUSH-IN EARPLUG - A push-in earplug including an elongate core and outer layer is disclosed. The outer layer includes a sound attenuating portion having a first average density and a stem portion having a second average density, and the second average density is greater than the first average density. | 01-16-2014 |
| 20140190493 | Hearing Protection Devices and Kits Including Adjustable Sound-Attenuation Assemblies - Hearing protection devices and kits may include an earplug body and an adjustable sound attenuation assembly composed of an attenuator case and an attenuator insert that is removably insertable into the attenuator case. The attenuator case has a hollow barrel portion that accommodates the attenuator insert and a hollow extension portion connected to the hollow barrel portion. The hollow extension portion includes a soundpath channel therethrough defining a soundpath axis. The attenuator insert is rotatable within the hollow barrel portion of the attenuator case about a rotation axis that is noncollinear with the soundpath axis. The attenuator insert has a thickness along the soundpath axis that varies with respect to a rotation angle of the attenuator insert within the attenuator case. Thereby, sound waves that enter the soundpath channel through the distal opening are attenuated proportionally to the thickness of the attenuator insert along the soundpath axis. | 07-10-2014 |
| 20140230830 | EARPLUG WITH TIP CAVITY AND METHODS OF MANUFACTURING THE SAME - Hearing protection devices, e.g., push-to-fit earplugs, having a tip cavity in the sound attenuating body and methods of manufacturing the hearing protection devices are described herein. | 08-21-2014 |
| 20150059776 | Earplug - An earplug is provided to prevent the tinnitus, which comprises an earplug body and at least one tube. The earplug body is made from a soft moldable material. The tube is placed inside the earplug body surrounded by the soft moldable material, and being formed in a continuous curve shape that has two openings at two ends of the tube, and a diameter of the tube is in a range from 0.03 cm to 0.15 cm. The tube is configured for communicating outside air to maintain the balance of the air pressure, and thus the earplug of the present invention is able to prevent the tinnitus of the user. Further, although the earplug of the present invention blocks most of the external sound, it still allows some thimbleful sound entering through the tube. In this way, the user does not need to worry about losing contact with the outside and remain the ability of noise reduction, so the user may feel more relieved while sleeping. | 03-05-2015 |
| 20150328052 | Ear Protection Device and Assembly Method - A hearing protective device placeable in an auditory canal of an ear, includes: a first outer end extending during use into the auditory canal, a second outer end remote from the first outer end and configured for gripping during arranging and/or removing of the hearing protective device respectively into and/or out of the auditory canal, a body extending between the first and the second outer end and provided with a channel for the passage of sound, a filter space arranged in the body for placing of a sound damping filter, and at least one sealing member which is connected by means of a base to the body for the purpose of blocking sound in the auditory canal during use. The filter space is arranged in the body such that, as seen in side view in the longitudinal direction of the central axis of the channel, it at least overlaps at least a part of the sealing member. | 11-19-2015 |
| 128868000 | Valve means (e.g., diaphragm) | 6 |
| 20100071708 | NOVEL HEARING PROTECTION DEVICE AND METHOD AND SECURE EARBUD ASSEMBLY - A passive level dependent hearing protection device for insertion into an ear canal is made of a flexible bladder attached to a frame and where the bladder utilizes valves to evacuate air from the ear canal. The device thereby causes transmission loss of acoustic waves wherein low frequency steady state and impact noises are attenuated but soft noises such as speech are attenuated to a lesser degree. The device incorporates a safety feature for preventing creation of too low an air pressure in the ear canal. Finally, the device may incorporate a transducer. | 03-25-2010 |
| 20130152949 | Blast Attenuating Earplug - An earplug includes a body, insertable into an ear canal, where the body defines a channel having at least two ends. The channel can house a movable structure configured to allow passage of sound around the movable structure in a rest position, and to block at least a portion of the channel in a deflected position. The movable structure moves from the rest position to the deflected position based on receiving, at one of the at least two ends of the channel, a pressure wave having at least a threshold amplitude pressure to block at least a portion of the pressure wave from reaching the other end of the channel. | 06-20-2013 |
| 20140190494 | SELECTIVE ATTENUATING EARPLUG - A selective attenuating earplug is provided. In an exemplary embodiment, a selective attenuating earplug includes a switch adjustable between a first position and a second position, and the switch includes at least one cantilever spring arm. | 07-10-2014 |
| 20150107606 | Switchable Hearing Protection Ear Plug - The present invention is a switchable hearing protection ear plug. In one position, the ear plug provides substantial sound attenuation and hearing protection. In the second position, an opening in the ear plug permits sounds to enter the ear of the user relatively unobstructed. A deformable barrier in an interior chamber of the ear plug controls the passage of sound through the ear plug. | 04-23-2015 |
| 20150136148 | EARPLUG AND ELECTRONIC DEVICE USING THE SAME - An earplug includes a sleeve, a resonance tube, and a tip. The sleeve has a plurality of slits, and the resonance tube is connected between the sleeve and the tip. When the sleeve is pressed to deform, the slits are opened to allow sound to enter the sleeve, and pass through the resonance tube and the tip. | 05-21-2015 |
| 20160058620 | External Ear Canal Pressure Regulation System - An external ear canal pressure regulation device including a fluid flow generator and an earpiece having a first axial earpiece conduit fluidicly coupled to the fluid flow generator, whereby the earpiece has a compliant earpiece external surface configured to sealably engage an external ear canal as a barrier between an external ear canal pressure and an ambient pressure. | 03-03-2016 |
