Patents by Inventor Shailesh V. Potnis

Shailesh V. Potnis 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: 20010015077
    Abstract: A liquid desiccant air conditioner includes an absorption air conditioner and a liquid desiccant dehumidifier.
    Type: Application
    Filed: April 2, 2001
    Publication date: August 23, 2001
    Inventors: Shailesh V. Potnis, Robert Baumann, Gregory W. Brandt
  • 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: 6216489
    Abstract: A liquid desiccant air conditioner includes an absorption air conditioner and a liquid desiccant dehumidifier.
    Type: Grant
    Filed: June 9, 1999
    Date of Patent: April 17, 2001
    Assignee: Fedders Corporation
    Inventors: Shailesh V. Potnis, Robert Baumann, Gregory W. Brandt
  • 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: 5653116
    Abstract: A triple-effect cycle is disclosed which avoids the two primary limitations of currently known triple-effect cycles: super-atmospheric pressures and/or low pressure absorbers that operate without mass transfer enhancers. The cycle is comprised of two hermetic loops--one a conventional LiBr double-effect loop, and the other a single-effect loop which overlaps the high pressure portion of the double-effect loop, and exchanges heat with it at three locations. Referring to FIG. 3, the latent heat exchanges are with absorber 302, condenser 304, and evaporator 305 of the single-effect loop. Sensible heat losses are reduced by incorporating inter-loop condensate-to-solution sensible heat exchanger 314. The inter-loop CSSHX also applies to other triple-effect cycles.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: August 5, 1997
    Inventors: Donald C. Erickson, Shailesh V. Potnis
  • Patent number: D440644
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: April 17, 2001
    Assignee: Fedders Corporation
    Inventors: Shailesh V. Potnis, Robert Baumann, Greg Brandt, Brett Tate, Mark Stewart