Patents by Inventor Kanchana Sanjaya Gunesekera Karunaratne
Kanchana Sanjaya Gunesekera Karunaratne 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).
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Patent number: 10962991Abstract: A modular multi-channel syringe pump assembly includes a chassis in which are mounted two or more parallel syringe banks. Each syringe bank includes a syringe for retaining a fluid in a chamber with a syringe plunger for drawing fluid into or forcing fluid out of the chamber. A syringe drive actuator includes a syringe drive motor and a mechanical linkage for activating the syringe. At least one position sensor detects syringe position and generates a position signal corresponding to the syringe position. A controller receives the position signal for each syringe bank and generates control signals for operation of the two or more syringe banks.Type: GrantFiled: January 31, 2019Date of Patent: March 30, 2021Assignee: KORTEKS ADVANCED SCIENCES, INC.Inventors: Kanchana Sanjaya Gunesekera Karunaratne, Joseph J. Manno
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Patent number: 10422496Abstract: Electric lighting devices are described having a candle body with an upper surface coupled to a sidewall. A flame element is disposed entirely outside of the candle body and include one or more magnets or a ferrous material. The flame element is supported above the upper surface by a support member that extends upwardly from the upper surface and terminates at a first end disposed within the flame element. This allows the flame element some degree of movement about the support member that combined with a light source configured to illuminate a surface of the flame element creates a flickering flame effect. The device can also include a drive mechanism such as an electromagnet that generates an electromagnetic field that interacts with the magnets of the flame element to thereby cause movement of the flame element.Type: GrantFiled: March 6, 2018Date of Patent: September 24, 2019Assignee: L&L Candle Company, LLCInventors: Douglas Patton, Kanchana Sanjaya Gunesekera Karunaratne, Gary Bordenkicher, Jeffrey Thompson
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Publication number: 20190234399Abstract: A modular multi-channel syringe pump assembly includes a chassis in which are mounted two or more parallel syringe banks. Each syringe bank includes a syringe for retaining a fluid in a chamber with a syringe plunger for drawing fluid into or forcing fluid out of the chamber. A syringe drive actuator includes a syringe drive motor and a mechanical linkage for activating the syringe. At least one position sensor detects syringe position and generates a position signal corresponding to the syringe position. A controller receives the position signal for each syringe bank and generates control signals for operation of the two or more syringe banks.Type: ApplicationFiled: January 31, 2019Publication date: August 1, 2019Inventors: Kanchana Sanjaya Gunesekera KARUNARATNE, Joseph J. MANNO
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Patent number: 10178731Abstract: Systems and methods of driving a light source, such as a light emitting diode (LED), while minimizing power consumption. Different techniques can be implemented in circuits that eliminate the traditional need for a sense resistor. By eliminating the sense resistor, a LED driving circuit's efficiency can be improved by up to and exceeding 30%. A pulse-width modulator can be used to control current flow in a buck, boost, or buck-boost circuits. Many of the configurations discussed eliminate the need for a sense resistor, which needlessly dissipates power. Others use a sense resistor minimally compared to traditional LED driving circuits.Type: GrantFiled: November 11, 2016Date of Patent: January 8, 2019Assignee: LUMINARA WORLDWIDE, LLCInventors: Douglas Patton, Kanchana Sanjaya Gunesekera Karunaratne
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Publication number: 20180372288Abstract: Electric lighting devices are described having a candle body with an upper surface coupled to a sidewall. A flame element is disposed entirely outside of the candle body and include one or more magnets or a ferrous material. The flame element is supported above the upper surface by a support member that extends upwardly from the upper surface and terminates at a first end disposed within the flame element. This allows the flame element some degree of movement about the support member that combined with a light source configured to illuminate a surface of the flame element creates a flickering flame effect. The device can also include a drive mechanism such as an electromagnet that generates an electromagnetic field that interacts with the magnets of the flame element to thereby cause movement of the flame element.Type: ApplicationFiled: March 6, 2018Publication date: December 27, 2018Inventors: Douglas Patton, Kanchana Sanjaya Gunesekera Karunaratne, Gary Bordenkicher, Jeffrey Thompson
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Publication number: 20180125749Abstract: An elevation device used in the performance of cardiopulmonary resuscitation (CPR) includes a base and an upper support pivotably coupled to the base. The upper support is configured to elevate the individual's upper back, shoulders and head when pivoted. The upper support is expandable lengthwise. The upper support includes a neck support that is configured to support the individual's spine in a region of the individual's C7 and C8 vertebrae throughout elevation of the upper back, shoulders and head.Type: ApplicationFiled: October 27, 2017Publication date: May 10, 2018Inventors: Keith G. Lurie, Kanchana Sanjaya Gunesekera Karunaratne, Joseph Manno, John P. Grimm
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Patent number: 9909729Abstract: Electric lighting devices are described having a candle body with an upper surface coupled to a sidewall. A flame element is disposed entirely outside of the candle body and include one or more magnets or a ferrous material. The flame element is supported above the upper surface by a support member that extends upwardly from the upper surface and terminates at a first end disposed within the flame element. This allows the flame element some degree of movement about the support member that combined with a light source configured to illuminate a surface of the flame element creates a flickering flame effect. The device can also include a drive mechanism such as an electromagnet that generates an electromagnetic field that interacts with the magnets of the flame element to thereby cause movement of the flame element.Type: GrantFiled: January 6, 2017Date of Patent: March 6, 2018Assignee: Luminara Worldwide, LLCInventors: Douglas Patton, Kanchana Sanjaya Gunesekera Karunaratne, Gary Bordenkicher, Jeffrey Thompson
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Publication number: 20180008510Abstract: A method for performing cardiopulmonary resuscitation (CPR) includes elevating the heart of an individual to a first height relative to a lower body of the individual. The lower body may be in a substantially horizontal plane. The method may also include elevating the head of the individual to a second height relative to the lower body of the individual. The second height may be greater than the first height. The method may further include performing one or more of a type of CPR or a type of intrathoracic pressure regulation while elevating the heart and the head. The first height and the second height may be determined based on one or both of the type of CPR or the type of intrathoracic pressure regulation.Type: ApplicationFiled: August 29, 2017Publication date: January 11, 2018Inventors: Keith G. Lurie, Kanchana Sanjaya Gunesekera Karunaratne, Joseph Manno, John P. Grimm
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Publication number: 20170191633Abstract: Electric lighting devices are described having a candle body with an upper surface coupled to a sidewall. A flame element is disposed entirely outside of the candle body and include one or more magnets or a ferrous material. The flame element is supported above the upper surface by a support member that extends upwardly from the upper surface and terminates at a first end disposed within the flame element. This allows the flame element some degree of movement about the support member that combined with a light source configured to illuminate a surface of the flame element creates a flickering flame effect. The device can also include a drive mechanism such as an electromagnet that generates an electromagnetic field that interacts with the magnets of the flame element to thereby cause movement of the flame element.Type: ApplicationFiled: January 6, 2017Publication date: July 6, 2017Inventors: Douglas Patton, Kanchana Sanjaya Gunesekera Karunaratne, Gary Bordenkicher, Jeffrey Thompson
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Publication number: 20170135172Abstract: Systems and methods of driving a light source, such as a light emitting diode (LED), while minimizing power consumption. Different techniques can be implemented in circuits that eliminate the traditional need for a sense resistor. By eliminating the sense resistor, a LED driving circuit's efficiency can be improved by up to and exceeding 30%. A pulse-width modulator can be used to control current flow in a buck, boost, or buck-boost circuits. Many of the configurations discussed eliminate the need for a sense resistor, which needlessly dissipates power. Others use a sense resistor minimally compared to traditional LED driving circuits.Type: ApplicationFiled: November 11, 2016Publication date: May 11, 2017Inventors: Douglas Patton, Kanchana Sanjaya Gunesekera Karunaratne
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Publication number: 20160338904Abstract: An elevation device used in the performance of cardiopulmonary resuscitation (CPR) and after resuscitation includes a base and an upper support operably coupled to the base. The upper support is configured to elevate an individual's upper back, shoulders and head. The elevation device also includes a chest compression device coupled with the base. The chest compression device is configured to compress the chest and to actively decompress the chest.Type: ApplicationFiled: May 20, 2016Publication date: November 24, 2016Inventors: Keith G. Lurie, Kanchana Sanjaya Gunesekera Karunaratne, Joseph Manno, John P. Grimm
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Publication number: 20160228326Abstract: An elevation device used in the performance of cardiopulmonary resuscitation (CPR) includes a base and an upper support pivotably coupled to the base. The upper support is configured to elevate the individual's upper back, shoulders and head when pivoted. The upper support is expandable lengthwise. The upper support includes a neck support that is configured to support the individual's spine in a region of the individual's C7 and C8 vertebrae throughout elevation of the upper back, shoulders and head.Type: ApplicationFiled: April 20, 2016Publication date: August 11, 2016Inventors: Keith G. Lurie, Kanchana Sanjaya Gunesekera Karunaratne, Joseph Manno, John P. Grimm
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Publication number: 20160128899Abstract: A method for performing cardiopulmonary resuscitation (CPR) includes elevating the heart of an individual to a first height relative to a lower body of the individual. The lower body may be in a substantially horizontal plane. The method may also include elevating the head of the individual to a second height relative to the lower body of the individual. The second height may be greater than the first height. The method may further include performing one or more of a type of CPR or a type of intrathoracic pressure regulation while elevating the heart and the head. The first height and the second height may be determined based on one or both of the type of CPR or the type of intrathoracic pressure regulation.Type: ApplicationFiled: January 14, 2016Publication date: May 12, 2016Inventors: Keith G. Lurie, Kanchana Sanjaya Gunesekera Karunaratne, Joe Manno, John P. Grimm
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Patent number: 6329139Abstract: Automated drug discovery protocols, or partially automated protocols, in which matrices with memories serve as the platform on which all manipulations are performed or serve as the repository of information that is transferred to other memories as the synthesized compounds are processed and screened. Also provided are automated drug discovery units for use in the protocols. The units provide a means for seamless data tracking and include instrumentation and vials with memories for information transfer to other memories in a unit. The units, which are provided herein, include some or all of the following: an automated or manual sorter, microvessels, which contain memories, an automated or semi-automated synthesizer, a microvessel washer/dryer, a manual or automated cleaver for removing compounds from the matrix with memory microvessels, and associated software. The memories may be any of any type, including electromagnetically encodable memories and optical memories, or combinations thereof.Type: GrantFiled: August 11, 1997Date of Patent: December 11, 2001Assignee: Discovery Partners InternationalInventors: Michael P. Nova, John E. Lillig, Kanchana Sanjaya Gunesekera Karunaratne, William Ewing, Yozo Satoda, Hanan Potash
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Patent number: 6136274Abstract: Automated drug discovery protocols, or partially automated protocols, in which matrices-with-memories serve as the platform on which all manipulations are performed or serve as the repository of information that is transferred to other memories as the synthesized compounds are processed and screened. Also provided are automated drug discovery units for use in the protocols. The units provide for seamless data tracking and include instrumentation and vials with memories for information transfer to other memories in a unit. The units, which are provided herein, include some or all of the following: an automated or manual sorter, microreactors and microvessels, which contain memories, an automated or semi-automated synthesizer, a microreactor washer/dryer, a manual or automated cleaver with a valved U-tube outlet for removing compounds from the matrix-with-memory microreactors, and associated software.Type: GrantFiled: October 7, 1997Date of Patent: October 24, 2000Assignee: IRORIInventors: Michael P. Nova, John E. Lillig, Kanchana Sanjaya Gunesekera Karunaratne, Donald O'Neil, William Ewing, Yozo Satoda
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Patent number: D786484Type: GrantFiled: May 5, 2016Date of Patent: May 9, 2017Assignee: Luminara Worldwide, LLCInventors: Douglas Patton, Heather Patton, Gary Bordenkicher, Jeffrey Thompson, Channing Shattuck, Kanchana Sanjaya Gunesekera Karunaratne