Patents by Inventor Michal K. Grabon

Michal K. Grabon 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).

  • Free cooling activation optimized controls
    Patent number: 7036330
    Abstract: A method for optimizing free cooling activation comprising the steps of operating an air conditioning unit in a chiller mode, determining a building load, determining a free cooler maximum available capacity (FreeCapM), and activating a free cooling mode of the air conditioning unit when the free cooler maximum available capacity is greater than or equal to the building load.
    Type: Grant
    Filed: June 24, 2004
    Date of Patent: May 2, 2006
    Assignee: Carrier Corporation
    Inventors: Michal K. Grabon, Joseph Ballet
  • Method to control high condenser pressure
    Patent number: 6997003
    Abstract: A method for controlling load capacity in an air conditioning unit comprising the steps of initializing a saturated condensing temperature upper bound (SCT_UP), comparing a saturated condensing temperature (SCT) to a maximum condensing temperature threshold (MCT_TH), unloading a single load capacity step, allowing the air conditioning unit to stabilize, and setting the SCT_UP equal to the SCT after the unloading, and increasing the load capacity by one capacity step if increased load capacity is required, the SCT is less than or equal to the MCT_TH, and the SCT<the SCT_UP.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: February 14, 2006
    Assignee: Carrier Corporation
    Inventors: Michal K. Grabon, Ba-Tung Pham