Valve Means (e.g., Diaphragm) Patents (Class 128/868)
  • Patent number: 10271993
    Abstract: An apparatus preventing hearing loss having a body made of soft compliant material having first and second ends and a channel extending therethrough, an acoustically limp material adjacent one end of the body with the acoustically limp material having a hole therein aligned with the channel extending through the body, component film, or other structure covering or sealing the opening in the acoustically limp material. The film may be a high-strength polymer less than 10 micrometers thick. A plurality of channels may extend through the body and a plurality of corresponding holes may be provided in the acoustically limp material. The film covers or seals the holes in the acoustically limp material. The film may behave like a flap to close in response to high energy sound waves. The flap shuts from the high intensity shock wave. The body may have shape to fit in an ear canal.
    Type: Grant
    Filed: January 10, 2007
    Date of Patent: April 30, 2019
    Assignee: President and Fellows of Harvard College
    Inventors: Rick Rogers, Brendan Clifford, Robert M. Westervelt, John W. Hutchinson, Howard A. Stone
  • Patent number: 9827145
    Abstract: An eye and ear protection system includes a pair of ear muffs connected together by a strap, the ear muffs include a slot in their forward side that is connected to a cavity within the ear muffs. The arms of a pair of glasses are positionable within the slots and allow a user to move the glasses between an in the line-of-sight position and an out of the line-of-sight position. The ear muffs also include one or two doors that can be opened, to allow the user to hear sounds in the environment, and closed to protect the user from loud noises in the environment. This system improves comfort and allows the user to selectively deploy hearing protection and/or eye protection without the need to remove the system from their head which saves time and reduces the potential for losing or misplacing either the hearing or eye protection.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: November 28, 2017
    Inventor: Wyatt R. Haukap
  • Patent number: 9621979
    Abstract: An apparatus include an earpiece including a chamber. The chamber has a passageway. The apparatus includes a valve configured to relieve acoustic pressure in the chamber. The valve control assembly is configured to control the valve based on acoustic pressure in the chamber.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: April 11, 2017
    Inventor: Pericles Bakalos
  • Patent number: 9326943
    Abstract: A body compatible and resorbable prosthesis has a tubular body incorporating denatured gelatin sponge material, either as a unitary gelatin sponge or as fragmented or powdered sponge material dispersed throughout a structurally self supporting medium. One version of the prosthesis uses the fragmented or powdered form of the gelatin sponge and is substantially homogeneous. An alternative prosthesis employs an inner tubular layer of gelatin film. The gelatin film layer is surrounded by an outer tubular layer, formed either of the gelatin sponge or the fragmented medium incorporating the gelatin sponge dispersion.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: May 3, 2016
    Inventor: Sandra M. Skovlund
  • Patent number: 9282394
    Abstract: A headphone may include a driver assembly and a headphone cup having an adjustable airflow valve assembly and/or an adjustable headphone interior cup volume adjustment assembly. Headphone cups and/or other elements may be printed with a 3D printer, and may be tailored to a particular headphone driver element.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: March 8, 2016
    Assignee: Mr Speakers, LLC
    Inventor: Dan W. Clark
  • Patent number: 9060897
    Abstract: 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.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: June 23, 2015
    Inventor: Robert E. Marsh
  • Publication number: 20150136148
    Abstract: 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.
    Type: Application
    Filed: March 4, 2014
    Publication date: May 21, 2015
  • Publication number: 20150107606
    Abstract: 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.
    Type: Application
    Filed: October 18, 2013
    Publication date: April 23, 2015
    Inventor: Robert E. Marsh
  • Patent number: 8955519
    Abstract: An earplug insertion device can include a housing that is configured to hold a first earplug and a second earplug. The device can also include an ejection mechanism that can be configured to respond to a first user force by ejecting the first earplug from the device in a first ejection motion. The ejection mechanism can also being configured to respond to a second user force by ejecting the second earplug from the device in a second ejection motion.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: February 17, 2015
    Assignee: J3 Group, LLC
    Inventors: Shawn Matthew Johnson, John Matthew Johnson, Joshua Ingvald Kenneth Johnson
  • Patent number: 8820470
    Abstract: An adjustably attenuating ear plug adapted for use in an ear canal, includes a flexible body, and a valve assembly further comprising a disk and knob translatable relative to the disk, wherein the knob defines at least one inlet, the disk alternately defines at least one shield and hole, and the inlet is alternatively aligned with the hole and shield to varying degrees, so as to selectively and variably expose the canal to the environment.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: September 2, 2014
    Inventor: Thomas Brown
  • Publication number: 20140190494
    Abstract: 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.
    Type: Application
    Filed: January 4, 2013
    Publication date: July 10, 2014
    Inventor: Jacob Ely
  • Publication number: 20130152949
    Abstract: 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.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 20, 2013
  • Patent number: 8398562
    Abstract: An ear canal pressurization device optimized for aural acoustic immittance testing is disclosed. Changes in volume of a first flexible chamber, due to motor movement, produce changes in ear canal pressure based on Boyle's law. A vent may be opened to allow ear canal pressure to gently equalize to ambient air pressure or to generate ear canal pressure sweeps free of pressure baseline offset. The vent may be closed to set a static ear canal pressure or to generate ear canal pressure sweeps with an incidental baseline offset. The vent may be controlled to generate ear canal pressure sweeps with an intended baseline offset. The device produces ear canal pressure proportional to drive voltage, so any desired pressure versus time function can be generated by applying a coil driving voltage with the appropriate amplitude versus time function.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: March 19, 2013
    Assignee: Micro Audiometrics Corporation
    Inventor: James E. Keller
  • Patent number: 8113200
    Abstract: A respirator mask has a removably mounted support frame that adjustably and removably mounts a corrective lens frame. The corrective lens frame further has a molded bridge with a biasing member embedded therein. A pivotal tab on the support frame is received in one of a plurality of detents on the lens frame for releasably securing the lens frame in the desired position on the support frame. Laterally disposed mounting lugs on the support frame are received in integrally molded pockets in the respirator mask.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: February 14, 2012
    Assignee: Avon Protection Systems, Inc.
    Inventor: Brian E. Davis
  • Patent number: 8047207
    Abstract: Methods and devices for sealing an orifice are provided. A sealing element is inserted into an orifice. A fluid is transferred into the sealing element. Fluid transfer into the sealing element is restricted when a pressure in the sealing element is greater than a threshold value.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: November 1, 2011
    Assignee: Personics Holdings Inc.
    Inventors: Moises Perez, John Patrick Keady
  • Patent number: 7988652
    Abstract: The present invention discloses a pivotal disc is pivotally coupled to a first brace and a second brace. The pivotal disc has a motion-limit member and a positioning member limiting the angle by which the second brace rotates with respect to the first brace with the pivotal disc being the axis and fixing the angle between the first and second braces. The present invention is characterized in that the motion-limit member uses a range-adjust member to push a slide block and determine the range that a block portion of the second brace is blocked by the slide block, and that the positioning member uses a switch knob actuates on end of a positioning rod to engage with or depart from a positioning notch on the pivotal disc, and that the pivotal disc has two limit elements to define the maximum movement range of the first brace and the second brace.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: August 2, 2011
    Assignee: Huntex Corporation
    Inventor: Chia-Chang Chao
  • Publication number: 20100071708
    Abstract: 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.
    Type: Application
    Filed: January 4, 2008
    Publication date: March 25, 2010
    Inventor: Martin L. Lenhardt
  • Patent number: 7475686
    Abstract: An earplug comprising a foam composition containing a polyvinyl chloride resin and less than about 5 wt % monomeric phthalate, based on the total weight of the foam composition, is described. The foam composition may include a plasticizer containing less than or equal to about 2 wt % monomeric phthalate, based on the total weight of the plasticizer. The earplugs have slow recovery times from 60 percent compression to 10 percent compression of about 10 to about 60 seconds.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: January 13, 2009
    Assignee: Cabot Safety Intermediate Corporation
    Inventors: Richard E. Knauer, Alan R. Seville
  • Publication number: 20080053449
    Abstract: A patient respiratory mask having a shell and a patient cushion for supplying oxygen during an endoscopic or bronchoscopic procedure. The mask has a first port for accepting an endoscope, a second port for accepting oropharyngeal suction, and an optional third port for carbon dioxide monitoring. The first and second ports are covered by preferably flexible, perforated diaphragms for maintaining the seal integrity during oxygen therapy.
    Type: Application
    Filed: August 31, 2007
    Publication date: March 6, 2008
    Applicant: ENDOMASK, LLC
    Inventors: Scott Lindblom, Thomas Pope, Thomas Pacicco
  • Patent number: 7185655
    Abstract: 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 section that fits tight in a user's outer ear and a watertight downwardly extending flexible protrusion that extends into the outer part of the ear canal. A non-collapsing, flexible sleeve with a hollow interior is concentrically positioned within the outer ear section and flexible protrusion. A diaphragm with elastic and water-resistant properties is attached across one end of the sleeve with watertight sealing means. An optional protuberance and/or lanyard may be attached to the outer ear section to assist in prompt invention removal after use, and an external barrier is optional where sudden impact can occur. For water depths below thirty-three feet, the diaphragm should be positioned near or within the flexible protrusion portion of the device.
    Type: Grant
    Filed: July 3, 2004
    Date of Patent: March 6, 2007
    Inventor: John Robert Redon
  • Publication number: 20020104545
    Abstract: An earphone with coverings comprises two opposite coverings and a covering connection. The covering connection connects with these two opposite coverings at both ends thereof. Each covering provides current leads for transmitting signals. A projection extends outward from a lateral side of each covering facing the corresponding ear for plugging into the ears during the earphone being worn. The projection has a size corresponding to the external acoustic meatus of the respective ear and provides at least a sound opening so as to transmit the sound into the meatus.
    Type: Application
    Filed: February 21, 2001
    Publication date: August 8, 2002
    Inventor: Hsi Kuang Ma
  • Patent number: 6082485
    Abstract: 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 canal. This earplug foam body includes at least a partial aperture axially of the plug leading from the exterior of the ear canal toward the interior of the car canal with its hearing sense. A two-part counter rotating gating member fits to the aperture of the earplug. One part of the two part counter rotating gating member has a conical through aperture concentric to the earplug and ear canal. This conical through aperture is partially obstructed by an eccentrically mounted gate. The remaining part of the two part counter rotating gating member defines a rotating cover over the conical aperture and defines at least one and preferably a plurality of sound apertures enabling sound to pass from the exterior of the earplug into the conical aperture.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: July 4, 2000
    Inventor: Eric B. Smith
  • Patent number: 6068079
    Abstract: 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 each other, each of the disks containing at least one perforation. The total perforated surface of at least one disk is between 0.03 and 0.5 mm.sup.2.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: May 30, 2000
    Assignee: I.S.L. Institut Franco-Allemand de Recherches de Saint-Louis
    Inventors: Pascal Hamery, Armand Dancer, Georges Evrard
  • Patent number: 4896679
    Abstract: 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 disorders of the ear which require the exclusion of foreign matter or fluids from the auditory canal, comprising an earplug or an earplug set in which auditory canal inserts may be pneumatically expanded into positive sealing engagement with the auditory meatus by the application of orally-blown pneumatic pressure developed by the human pulmonary system.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: January 30, 1990
    Inventor: Carol L. St. Pierre
  • Patent number: 4807612
    Abstract: 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 natural quality of the incoming sound, in particular with respect to the natural resonance of the ear canal.
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: February 28, 1989
    Assignee: Industrial Research Products, Inc.
    Inventor: Elmer V. Carlson