Patents by Inventor David M. Campbell, II

David M. Campbell, II has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8870558
    Abstract: An earplug shaping device compresses a compressible earplug prior to insertion of the earplug into a user's ear canal. The device includes a first member and a second member which rotate with respect to each other. The outer surface of the first member and inner surface of the second member define a space that decreases in size as the first and second members rotate with respect to each other, thereby compressing the compressible earplug. Various embodiments of the earplug shaper employ a ratchet mechanism permitting substantially only one direction of rotation.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: October 28, 2014
    Inventors: Daniel R. Schumaier, David M. Campbell, II, Jerry V. Foster, Harry S. Strothers, IV, Allison Guyton, Jason R. Herman, Christopher S. Kudika, Scott A. Lutz, Stephen J. Drabant, Katherine A. King
  • Patent number: 8718307
    Abstract: A bone conduction hearing aid includes an in-the-ear (ITE) component including a transducer that is carried by the ITE component and positioned in the concha of the ear when in use. A vibrationally conductive structural member of the ITE component conducts vibration produced the transducer into the ear canal and such vibrations are transferred through a housing of the transducer. From there, the vibrations are transferred to a cochlea of the user by way of the mastoid bone, enabling enhanced hearing perception in patients with hearing loss.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: May 6, 2014
    Inventors: Daniel R. Schumaier, David M. Campbell, II
  • Patent number: 8472634
    Abstract: A hearing aid which is operable in an audiometric testing mode includes an audio output section, a volume control, a switching device, and a processor. The audio output section sequentially generates a number of testing sounds at a corresponding number of testing frequencies and provides each testing sound to the person who will be using the hearing aid. The volume control is used to adjust the amplitude of each testing sound to a level of audibility just above the person's threshold of hearing at the corresponding testing frequency. When the appropriate threshold volume level is set, the switching device is operated to generate a control signal. Based on operation of the volume control and the switching device for each of the testing sounds at each of the testing frequencies, the processor sets a plurality of threshold hearing levels associated with the corresponding testing frequencies.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: June 25, 2013
    Inventors: Daniel R. Schumaier, David M. Campbell, II, Stephen W. Armstrong
  • Publication number: 20130011509
    Abstract: An earplug shaping device shapes a compressible earplug prior to insertion of the earplug into a user's ear canal. The device includes a first member and a second member which rotate with respect to each other. The outer surface of the first member and inner surface of the second member define a space that decreases in size as the first and second members rotate with respect to each other, thereby compressing the compressible earplug. Various embodiments of the earplug shaper employ ratchet mechanism permitting substantially only one direction of rotation.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 10, 2013
    Inventors: Daniel R. Schumaier, David M. Campbell, II, Jerry V. Foster, Harry S. Strothers, IV, Allison Guyton, Jason R. Herman, Christopher S. Kudika, Scott A. Lutz, Stephen J. Drabant, Katherine A. King
  • Publication number: 20120230529
    Abstract: A bone conduction hearing aid includes an in-the-ear (ITE) component including a transducer that is carried by the ITE component and positioned in the concha of the ear when in use. A vibrationally conductive structural member of the ITE component conducts vibration produced the transducer into the ear canal and such vibrations are transferred through a housing of the transducer. From there, the vibrations are transferred to a cochlea of the user by way of the mastoid bone, enabling enhanced hearing perception in patients with hearing loss.
    Type: Application
    Filed: March 11, 2011
    Publication date: September 13, 2012
    Inventors: Daniel R. Schumaier, David M. Campbell, II
  • Patent number: 8023674
    Abstract: An electronic hearing aid apparatus comprises a first component, a second component and a cable assembly for electrically connecting the first component to the second component. The first component includes a vibration sensor generating a vibration signal based on sensed acoustic vibrations, electronics for processing and amplifying the vibration signal and an output port for providing access to the amplified vibration signal. The second component includes an input port for receiving the amplified vibration signal and a vibration generator for generating vibrations based on the amplified vibration signal. The cable assembly conducts the amplified vibration signal from the output port of the first component to the input port of the second component. The cable assembly includes a first connector for connecting to the first component, a second connector for connecting to the second component and a flexible cable portion for electrically connecting the first connector to the second connector.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: September 20, 2011
    Inventors: Daniel R. Schumaier, David M. Campbell, II
  • Publication number: 20100158262
    Abstract: A hearing aid which is operable in an audiometric testing mode includes an audio output section, a volume control, a switching device, and a processor. The audio output section sequentially generates a number of testing sounds at a corresponding number of testing frequencies and provides each testing sound to the person who will be using the hearing aid. The volume control is used to adjust the amplitude of each testing sound to a level of audibility just above the person's threshold of hearing at the corresponding testing frequency. When the appropriate threshold volume level is set, the switching device is operated to generate a control signal. Based on operation of the volume control and the switching device for each of the testing sounds at each of the testing frequencies, the processor sets a plurality of threshold hearing levels associated with the corresponding testing frequencies.
    Type: Application
    Filed: March 3, 2010
    Publication date: June 24, 2010
    Inventors: Daniel R. Schumaier, David M. Campbell, II, Stephen W. Armstrong
  • Publication number: 20100067725
    Abstract: An electronic hearing aid apparatus comprises a first component, a second component and a cable assembly for electrically connecting the first component to the second component. The first component includes a vibration sensor generating a vibration signal based on sensed acoustic vibrations, electronics for processing and amplifying the vibration signal and an output port for providing access to the amplified vibration signal. The second component includes an input port for receiving the amplified vibration signal and a vibration generator for generating vibrations based on the amplified vibration signal. The cable assembly conducts the amplified vibration signal from the output port of the first component to the input port of the second component. The cable assembly includes a first connector for connecting to the first component, a second connector for connecting to the second component and a flexible cable portion for electrically connecting the first connector to the second connector.
    Type: Application
    Filed: April 29, 2009
    Publication date: March 18, 2010
    Inventors: Daniel R. Schumaier, David M. Campbell, II