Patents by Inventor Ravi Narhar Karekar

Ravi Narhar Karekar 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).

  • Process and instrument for moisture measurement
    Patent number: 6407555
    Abstract: An instrument and process for measuring moisture content of an article. A microstrip resonator receives a signal from a microwave sweep oscillator. A holder holds the article wherein the article under test is placed over a substrate of the resonator and covers the resonator and provides orientation to the article under test in a desired direction to the sample. A detector receives transmitted as well as reflected signals from a resonator sensor for measurement of Q factor and frequency shift of the resonator. The moisture content of the article is determined by the change in effective permittivity of a cross-section of the miscorstrip.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: June 18, 2002
    Assignee: National Research Development Corporation
    Inventors: Kalpana Keshav Joshi, Rohini Chandrashekhar Aiyer, Ravi Narhar Karekar, Mahesh Pandurang Abegaonkar
  • Process and instrument for moisture measurement
    Publication number: 20010030543
    Abstract: An instrument and process for measuring moisture content of an article. A microstrip resonator receives a signal from a microwave sweep oscillator. A holder holds the article wherein the article under test is placed over a substrate of the resonator and covers the resonator and provides orientation to the article under test in a desired direction to the sample. A detector receives transmitted as well as reflected signals from a resonator sensor for measurement of Q factor and frequency shift of the resonator. The moisture content of the article is determined by the change in effective permittivity of a cross-section of the miscorstrip.
    Type: Application
    Filed: February 26, 2001
    Publication date: October 18, 2001
    Inventors: Kalpana Keshav Joshi, Rohini Chandrashekhar Aiyer, Ravi Narhar Karekar, Mahesh Pandurang Abegaonkar