Patents by Inventor Conrad Perry

Conrad Perry 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: 11781787
    Abstract: A 3000-20000 rpm RS-SR motor (RS-SR) and adjustable speed drive (ASD), with a cooling and lubrication system that is independent of the existing chiller lubrication and refrigerant cooling circuits. Product is configured as a direct replacement for motor, starter (drive), and gearbox solutions historically and currently used by OEM's on chillers. Oil containment and low motor cavity pressure is achieved with Axial Carbon Ceramic seals. Using an inner shell suspended in an outer shell: a coolant path is created, and vibration is abated, as well as meeting pressure vessel requirements. These features enable precise qualification of product independent of the chiller system over range of speeds and loads on a calibrated test stand. Specific information derived from qualification tests enables integration of optimization subroutines into the ASD that improve efficiency and increase ability to operate at or near compressor surge boundary.
    Type: Grant
    Filed: February 1, 2021
    Date of Patent: October 10, 2023
    Inventors: Reed Harmon Carpenter, Donald Conrad Perry
  • Publication number: 20220243959
    Abstract: A 3000-20000 rpm RS-SR motor (RS-SR) and adjustable speed drive (ASD), with a cooling and lubrication system that is independent of the existing chiller lubrication and refrigerant cooling circuits. Product is configured as a direct replacement for motor, starter(drive), and gearbox solutions historically and currently used by OEM's on chillers. Oil containment and low motor cavity pressure is achieved with Axial Carbon Ceramic seals. Using an inner shell suspended in an outer shell: a coolant path is created, and vibration is abated, as well as meeting pressure vessel requirements. These features enable precise qualification of product independent of the chiller system over range of speeds and loads on a calibrated test stand. Specific information derived from qualification tests enables integration of optimization subroutines into the ASD that improve efficiency and increase ability to operate at or near compressor surge boundary.
    Type: Application
    Filed: February 1, 2021
    Publication date: August 4, 2022
    Inventors: Reed Harmon Carpenter, Donald Conrad Perry
  • Publication number: 20060052017
    Abstract: This invention is directed to an improvement in binders particularly suited for use in preparing nonwoven products and to the nonwoven products. The improved binders comprise a blend of emulsion polymerized ethylene-vinyl chloride (EVCl) polymer and an emulsion polymerized self crosslinkable vinyl acetate-ethylene-N-methylolacrylamide (VAE-NMA) polymer. The blends of the EVCl polymer emulsion and the VAE-NMA polymer emulsion can be applied to cellulose and cellulose/synthetic nonwoven substrates and cured in the absence of an acid catalyst to provide a self-sustaining web having excellent wet strength performance. The blends of EVCl and VAE-NMA polymers do not require an acid catalyst to facilitate cure.
    Type: Application
    Filed: September 7, 2004
    Publication date: March 9, 2006
    Inventors: John Boylan, Conrad Perry
  • Publication number: 20060052018
    Abstract: This invention is directed to an improvement in binders particularly suited for use in preparing nonwoven products and to the nonwoven products. The improved binders comprise a blend of a vinyl chloride (VCl) polymer emulsion and a self crosslinkable vinyl acetate-ethylene-N-methylolacrylamide (VAE-NMA) polymer emulsion. The blend of the VCl polymer emulsion and the VAE-NMA polymer emulsion can be applied to cellulose and cellulose/synthetic nonwoven substrates and cured in the absence of an acid catalyst to provide a self-sustaining web having excellent wet strength performance.
    Type: Application
    Filed: July 1, 2005
    Publication date: March 9, 2006
    Inventors: John Boylan, Conrad Perry