Patents by Inventor Nimalakirthi Rajasinghe

Nimalakirthi Rajasinghe 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).

  • Dehumidification system having a coil split subcooler for removing moisture from an air flow and methods thereof
    Publication number: 20010037650
    Abstract: A dehumidification system is provided that includes a coil split subcooler having a plurality of splits that each include at least one circuit for removing moisture from an air flow. In addition, a system and method for modulating the capacity of a subcooler are provided whereby the rate in which moisture is removed from an air flow can be optimized.
    Type: Application
    Filed: January 25, 2000
    Publication date: November 8, 2001
    Applicant: Optimum Air Corporation
    Inventors: Fred G. Scheufler, William H. Bayard, Nimalakirthi Rajasinghe
  • Radiation curing system
    Patent number: 6170427
    Abstract: An apparatus and method for rapidly drying and curing a waterborne coating as applied by a spray gun, or other means, to a product traveling on a moving continuous conveyor track. The conveyor track passes through a drying section which uses recycled filtered air to dry the coating and then into a curing section which uses an irradiator and airflow to rapidly cure the coating. The irradiator is cooled using an air flow and a damper assembly system.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: January 9, 2001
    Assignee: Optimum Air Corporation
    Inventors: Fred G. Scheufler, Richard D. Scheufler, William H. Bayard, Nimalakirthi Rajasinghe
  • Continuous emissions monitoring system
    Patent number: 6094968
    Abstract: A continuous emissions monitoring system for continuously monitoring and evaluating air flow samples from a plurality of emission sites. The monitoring system includes a microprocessor controlled Fourier transform infrared scanning laser system for identifying and quantifying compounds in the air flow samples based on known spectral absorption bands. The monitoring system also includes an auxiliary gas chromatograph for separating and analyzing compounds belonging to a common family which exhibit interference patterns or overlapping spectral bands. The auxiliary gas chromatograph is employed in cases where the infrared scanning laser system detects high levels of compounds, above a predetermined threshold level, exhibiting such interference patterns, or when an unknown compound is detected by the infrared scanning laser system.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: August 1, 2000
    Assignee: Optimum Air Corporation
    Inventors: Fred G. Scheufler, Richard D. Scheufler, William H. Bayard, Nimalakirthi Rajasinghe
  • Radiation curing system
    Patent number: 5921002
    Abstract: An apparatus and method for rapidly drying and curing a waterborne coating as applied by a spray gun, or other means, to a product traveling on a moving continuous conveyor track. The conveyor track passes through a drying section which uses recycled filtered air to dry the coating and then into a curing section which uses an irradiator and airflow to rapidly cure the coating. The irradiator is cooled using an air flow and a damper assembly system.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: July 13, 1999
    Assignee: Optimum Air Corporation
    Inventors: Fred G. Scheufler, Richard D. Scheufler, William H. Bayard, Nimalakirthi Rajasinghe