Patents by Inventor Louis D. DiNapoli

Louis D. DiNapoli 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).

  • Injection-molded Doppler flowmeter transducer assembly
    Patent number: 4333352
    Abstract: A transducer housing assembly for an ultrasonic flowmeter made by an injection molding having a pair of pedestals for supporting the transducers at a specific angle while acoustically isolating the transducers from each other and providing an air backing for the transducers to improve the sensitivity of the transducer assembly.
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: June 8, 1982
    Assignee: Leeds & Northrup Company
    Inventors: James G. Connery, Dominick D. Diascro, Louis D. DiNapoli, Giancarlo Punis, Anthony J. Matour
  • Ultrasonic Doppler flowmeter with correction for vibratory signals at zero-flow conditions
    Patent number: 4280365
    Abstract: An ultrasonic Doppler flowmeter for measuring flowing fluid by reflection of sonic waves from particles in the fluid is provided with a discriminating circuit including a comparator amplifier connected to the received signal that produces a zero-flow output from the flowmeter when the signal received by the receiving means is produced by vibration of the reflecting particles in a zero-flow condition.
    Type: Grant
    Filed: October 10, 1979
    Date of Patent: July 28, 1981
    Assignee: Leeds & Northrup Company
    Inventors: James G. Connery, Louis D. DiNapoli, Giancarlo Punis
  • Synchronous frequency-to-voltage converter for doppler apparatus
    Patent number: 4183245
    Abstract: An ultrasonic Doppler flowmeter is provided with a frequency-to-voltage converter comprising a pair of interconnected filp-flops triggered by the Doppler frequency and a submultiple of the transmission frequency which produces a series of output pulses having a repetition rate determined by the Doppler frequency and a pulse duration inversely related to the frequency of transmission of the ultrasonic transmitter.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: January 15, 1980
    Assignee: Leeds & Northrup Company
    Inventors: James G. Connery, Louis D. DiNapoli, Giancarlo Punis