Patents by Inventor Thomas J. Danley

Thomas J. Danley 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).

  • Sound source having a plurality of drivers operating from a virtual point
    Patent number: 4845759
    Abstract: A sound source includes a plurality of drivers communicating with the common throat of a horn. The size of the radiating area of the throat is less than two or three wavelengths of the highest frequency to be produced such that the drivers operate conjointly from a virtual point. Means may be included to adjust the time delay or phase between drivers to control the dispersion angle.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: July 4, 1989
    Assignee: Intersonics Incorporated
    Inventor: Thomas J. Danley
  • Horn loaded transducer for acoustic levitation
    Patent number: 4841495
    Abstract: A sound source coupled to an acoustic levitation chamber is provided with horn loading to improve efficiency and to protect the sound source from heat. A dish sound source may be used, and the horn may include a half wavelength pathway from the rear of the dish to provide additional efficiency.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: June 20, 1989
    Assignee: Intersonics Incorporated
    Inventors: Thomas J. Danley, Charles A. Rey
  • Rotary sound transducer
    Patent number: 4763358
    Abstract: At least one rotary vane in a tube is driven by a motor in response to an audio signal, causing production of sound through at least one opening in the tube.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: August 9, 1988
    Assignee: Intersonics Incorporated
    Inventor: Thomas J. Danley
  • Transducer for producing sound of very high intensity
    Patent number: 4757227
    Abstract: A sound transducer having a high impedance relative to air is coupled with mechanical transformers. The output transformer is in the shape of a dish having the center coupled to a piezoelectric transducer, the outer portion of the dish is unsupported and more flexible than the center section at resonance this allows large amplitude movement and a better impedance match to air.
    Type: Grant
    Filed: March 24, 1986
    Date of Patent: July 12, 1988
    Assignee: Intersonics Incorporated
    Inventors: Thomas J. Danley, Dennis R. Merkley, Charles A. Rey
  • Air cooled loudspeaker
    Patent number: 4757547
    Abstract: An electrical blower is used to pass cooling air through a loudspeaker driver. The blower is connected in parallel to the leads between the amplifier and speaker such that the blower speed and cooling increases with increased power consumption and heat generation by the driver.
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: July 12, 1988
    Assignee: Intersonics Incorporated
    Inventor: Thomas J. Danley
  • Subwoofer speaker system
    Patent number: 4564727
    Abstract: A method and apparatus for producing low frequency sound (20 to 100 Hz) at levels of intensity above the minimum threshold of human hearing. A mechanical-electrical drive having high power capacity is coupled via a linkage to a sound radiator and is responsive to the electrical input from a sound program source. The drive is capable of large excursions at high forces which are substantially constant irrespective of the extent of excursion.
    Type: Grant
    Filed: January 12, 1984
    Date of Patent: January 14, 1986
    Assignee: Intersonics Incorporated
    Inventors: Thomas J. Danley, Charles A. Rey
  • Loudspeaker with commutated coil drive
    Patent number: 4531025
    Abstract: An improvement is provided in a loudspeaker having a current carrying coil disposed in the flux gap of a permanent magnet and carrying current to drive the coil and an associated sound diaphragm. The coil is substantially longer than the thickness of the flux gap and has an exposed conductive surface. Contacts are mounted near each side of the flux gap and slidably engage the coil surface to supply current to a limited portion of the coil situated in the flux gap, irrespective of movement of the coil.
    Type: Grant
    Filed: March 19, 1984
    Date of Patent: July 23, 1985
    Assignee: Intersonics Incorporated
    Inventors: Thomas J. Danley, Charles A. Rey