Patents by Inventor Ernesto Bello

Ernesto Bello 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: 4584623
    Abstract: Electronic circuitry senses over-voltage and under-voltage within narrow threshold limits, and voltage interruption, in the energization circuit of a sensitive load, such as a refrigeration compressor motor load, to protect against overheating damage and burn-out. Setting to a nominal operating line voltage is provided for to obviate readjustment to the threshold voltages of a window comparator utilized to sense over-voltage and under-voltage.
    Type: Grant
    Filed: November 7, 1983
    Date of Patent: April 22, 1986
    Assignee: Watsco, Inc.
    Inventors: Ernesto Bello, Joseph F. Mibelli
  • Patent number: 4341736
    Abstract: A fluid transfer mechanism for rapidly and accurately picking up or aspirating a fluid quantity or aliquot in one position, moving it to a second position and dispensing the aspirated aliquot. The mechanism includes an arm mounted on a high helix shaft on one end and driven up and down the shaft by a first motor and rotated around the shaft by a second motor. The arm includes at a second end a fluid transfer probe which is moved into and out of the fluids to aspirate and dispense the fluids in precise angular locations. The arm may be accelerated and deaccelerated as it is rotated to avoid vibrations and spilling of the fluid from the probe. The probe may include a level sensing structure for sensing when the probe has contacted a fluid surface. The probe also may be coupled to an oscillator to oscillate the probe in a vessel into which the fluid has been dispensed to mix the fluids therein.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: July 27, 1982
    Assignee: Coulter Electronics, Inc.
    Inventors: Vladimir J. Drbal, Guenter Ginsberg, Bruce J. Hodgins, John A. Richardson, Ted W. Britton, Richard M. Grimm, Ernesto Bello, Rodolfo R. Rodriguez, Ivan K. Saltz
  • Patent number: 4326851
    Abstract: A level sensor of a fluid transfer mechanism for determining when the bottom tip of a fluid aspirating probe touches or contacts the top surface of a sample fluid. The level sensor senses the contact capacitively by grounding one plate of a capacitor through the sample fluid and fluid aspirating probe. One capacitor plate is formed of an electrode biased against the bottom of a rotatable supply tray and positioned under a sample containing cavity in the tray. The other capacitor plate is formed by the bottom surface of the sample fluid in the supply cavity, and the dielectric of the capacitor is formed of the supply tray material. An AC signal is applied to the electrode and the probe is grounded. The change in voltage occurring in the AC signal at the electrode when the probe touches the top surface of the sample fluid it is sensed to provide the touch signal.
    Type: Grant
    Filed: October 24, 1980
    Date of Patent: April 27, 1982
    Assignee: Coulter Electronics, Inc.
    Inventors: Ernesto Bello, Steven N. Kolber, Wallace H. Coulter
  • Patent number: 4276260
    Abstract: A fluid transfer mechanism for rapidly and accurately picking up or aspirating a fluid quantity or aliquot in one position, moving it to a second position and dispensing the aspirated aliquot. The mechanism includes an arm mounted on a high helix shaft on one end and driven up and down the shaft by a first motor and rotated around the shaft by a second motor. The arm includes at a second end a fluid transfer probe which is moved into and out of the fluids to aspirate and dispense the fluids in precise angular locations. The arm may be accelerated and deaccelerated as it is rotated to avoid vibrations and spilling of the fluid from the probe. The probe may include a level sensing structure for sensing when the probe has contacted a fluid surface. The probe also may be coupled to an oscillator to oscillate the probe in a vessel into which the fluid has been dispensed to mix the fluids therein.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: June 30, 1981
    Assignee: Coulter Electronics, Inc.
    Inventors: Vladimir J. Drbal, Guenter Ginsberg, Bruce J. Hodgins, John A. Richardson, Ted W. Britton, Richard M. Grimm, Ernesto Bello, Rodolfo R. Rodriguez, Ivan K. Saltz