Patents by Inventor Srikant Ram Rao

Srikant Ram Rao 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).

  • Publication number: 20010013226
    Abstract: The present invention provides a liquid desiccant air conditioner including an absorption air conditioner and a liquid desiccant dehumidifier. The dehumidifier includes a liquid desiccant absorber for absorbing moisture contained in ambient air entering the dehumidifier and passing through the desiccant absorber. A boiler is provided for boiling partially preheated dilute liquid desiccant to evaporate moisture to reconstitute the liquid desiccant into concentrated liquid desiccant. In a preferred embodiment, a first heat exchanger fluidly communicates with the desiccant absorber and a second heat exchanger. The first heat exchanger is operable to transfer heat from the concentrated liquid desiccant to the dilute liquid desiccant directed to the first heat exchanger from the desiccant absorber to raise the temperature of the dilute liquid desiccant to a first temperature.
    Type: Application
    Filed: March 28, 2001
    Publication date: August 16, 2001
    Inventors: Shailesh V. Potnis, Kevin Gurley, Phillip T. McKittrick, Robert Baumann, Srikant Ram Rao, Robert L. Laurent
  • Patent number: 6216483
    Abstract: A liquid desiccant air conditioner includes an absorption air conditioner and a liquid desiccant dehumidifier. The dehumidifier includes a liquid desiccant absorber for absorbing moisture contained in ambient air entering the dehumidifier, a boiler for boiling dilute liquid desiccant from the absorber to evaporate moisture and reconstitute the dilute liquid desiccant into concentrated liquid desiccant. A first heat exchanger receives dilute liquid desiccant from the absorber and is operative to heat the dilute liquid desiccant prior to passage to a condenser that receives steam from the boiler and sensibly heats the dilute liquid desiccant therein without direct contact with air, thereby eliminating desiccant carryover from the condenser. A second heat exchanger is operable to transfer heat from concentrated liquid desiccant received from the boiler to preheated dilute liquid desiccant received from the condenser prior to entry into the boiler.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: April 17, 2001
    Assignee: Fedders Corporation
    Inventors: Shailesh V. Potnis, Kevin Gurley, Phillip T. McKittrick, Robert Baumann, Srikant Ram Rao, Robert L. Laurent, Jr.
  • Patent number: 6138470
    Abstract: A liquid desiccant dehumidifier includes a liquid desiccant absorber arranged to receive concentrated liquid desiccant and absorb moisture contained in ambient air passed through the absorber thereby diluting the liquid desiccant. A first heat exchanger is operative to heat dilute liquid desiccant received from the desiccant absorber prior to passage to a boiler that evaporates moisture from the diluted liquid desiccant to create steam and reconstitute the desiccant into a concentrated liquid desiccant. Dilute liquid desiccant from the first heat exchanger first passes to a condenser that receives steam from the boiler and sensibly heats the dilute liquid desiccant to a higher second temperature without direct exposure to steam or air.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: October 31, 2000
    Assignee: Fedders Corporation
    Inventors: Shailesh V. Potnis, Srikant Ram Rao, Robert L. Laurent, Jr.
  • Patent number: 6134903
    Abstract: A liquid desiccant dehumidifier includes a liquid desiccant absorber arranged to receive concentrated liquid desiccant and absorb moisture contained in ambient air passed through the absorber thereby diluting the liquid desiccant. A first heat exchanger is operative to heat dilute liquid desiccant received from the desiccant absorber prior to passage to a boiler that evaporates moisture from the diluted liquid desiccant to create steam and reconstitute the desiccant into a concentrated liquid desiccant. Dilute liquid desiccant from the first heat exchanger first passes to a condenser that receives steam from the boiler and sensibly heats the dilute liquid desiccant to a higher second temperature without direct exposure to steam or air.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: October 24, 2000
    Assignee: Fedders Corporation
    Inventors: Shailesh V. Potnis, Kevin Gurley, Phillip T. McKittrick, Robert Baumann, Srikant Ram Rao, Robert L. Laurent, Jr.
  • Patent number: 5761915
    Abstract: A housing has a first side and a second side. A first opening is disposed in the first side. A second opening and a third opening are disposed in the second side. An enthalpy wheel has a first side facing surface and an opposite second side facing surface. The enthalpy wheel is rotatably mounted within the housing. Approximately half of the second side facing surface of the enthalpy wheel is in fluid communication with the second opening. Approximately the remaining half of the second side facing surface is in fluid communication with the third opening. Substantially the entire first side facing surface is in fluid communication with the first opening. A first fan is mounted within the housing adjacent to the second opening. A second fan is mounted within the housing adjacent to the third opening.
    Type: Grant
    Filed: March 12, 1997
    Date of Patent: June 9, 1998
    Assignee: Fedders Corporation
    Inventor: Srikant Ram Rao
  • Patent number: D407807
    Type: Grant
    Filed: February 20, 1997
    Date of Patent: April 6, 1999
    Assignee: Fedders Corporation
    Inventor: Srikant Ram Rao