Patents by Inventor Mahendra Dassanayake
Mahendra Dassanayake 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: 11408602Abstract: A light assembly includes a heat pipe having a first condenser portion and a first evaporator portion. The heat pipe has a longitudinally extending wall. A plurality of light sources is disposed at least partially around and thermally coupled to longitudinally extending wall at the first evaporator portion of the heat pipe. A heat sink housing has a heat sink portion, an electronic housing portion and a plurality of fins. The heat sink housing receives the first condenser portion of the heat pipe. The heat sink housing separated from the electronic housing portion by a wall. The electronic defines a drive circuit volume comprising a drive circuit and temperature sensor. The drive circuit reduces current to the light sources in response to the temperature signal.Type: GrantFiled: July 23, 2021Date of Patent: August 9, 2022Assignee: eLUMIGEN, LLCInventors: Mahendra Dassanayake, Gennaro Fedele, Brian Petku, Roshan A. Kandanda, Alfred Laspina
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Publication number: 20220118149Abstract: A purification system has a reaction chamber, a fan coupled to the reaction chamber communicating air through the reaction chamber, a light source a first having a first wavelength directed at air passing through the reaction chamber and a surface comprising a photocatalyst. The light source is directed at the surface comprising the photocatalyst.Type: ApplicationFiled: October 20, 2021Publication date: April 21, 2022Inventors: Mahendra Dassanayake, Brian Petku
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Publication number: 20220010951Abstract: A light assembly includes a heat pipe having a first condenser portion and a first evaporator portion. The heat pipe has a longitudinally extending wall. A plurality of light sources is disposed at least partially around and thermally coupled to longitudinally extending wall at the first evaporator portion of the heat pipe. A heat sink housing has a heat sink portion, an electronic housing portion and a plurality of fins. The heat sink housing receives the first condenser portion of the heat pipe. The heat sink housing separated from the electronic housing portion by a wall. The electronic defines a drive circuit volume comprising a drive circuit and temperature sensor. The drive circuit reduces current to the light sources in response to the temperature signal.Type: ApplicationFiled: July 23, 2021Publication date: January 13, 2022Inventors: Mahendra DASSANAYAKE, Gennaro FEDELE, Brian PETKU, Roshan A. KANDANDA, Alfred LASPINA
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Patent number: 11092325Abstract: A light assembly includes a heat pipe having a first condenser portion and a first evaporator portion. The heat pipe includes a longitudinally extending wall. A plurality of light sources are disposed at least partially around and thermally coupled to longitudinally extending wall at the first evaporator portion of the heat pipe. A first heat sink housing receives the first condenser portion of the heat pipe.Type: GrantFiled: October 9, 2019Date of Patent: August 17, 2021Assignee: eLUMIGEN, LLCInventors: Mahendra Dassanayake, Gennaro Fedele, Brian Petku, Roshan A. Kandanda, Alfred Laspina
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Publication number: 20200116344Abstract: A light assembly includes a heat pipe having a first condenser portion and a first evaporator portion. The heat pipe includes a longitudinally extending wall. A plurality of light sources are disposed at least partially around and thermally coupled to longitudinally extending wall at the first evaporator portion of the heat pipe. A first heat sink housing receives the first condenser portion of the heat pipe.Type: ApplicationFiled: October 9, 2019Publication date: April 16, 2020Applicant: eLUMIGEN, LLCInventors: Mahendra DASSANAYAKE, Gennaro FEDELE, Brian PETKU, Roshan A. KANDANDA, Alfred LASPINA
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Patent number: 9976705Abstract: A light engine includes a first plurality of diodes coupled in series. The first plurality of diodes includes a first anode end and a first cathode end. A second plurality of diodes is coupled in series. The second plurality of diodes includes a second anode end and a second cathode end. A first terminal is electrically coupled to the first cathode end and said second anode end to form a first node. The second terminal is coupled to said first anode end. A third plurality of diodes is coupled in series. The second plurality of diodes includes a third anode end and a third cathode end. The third terminal is coupled to the third cathode end. A fourth terminal is electrically coupled to the second cathode end and the third anode end to form a first node.Type: GrantFiled: May 23, 2017Date of Patent: May 22, 2018Assignee: eLumigen, LLCInventors: Brian Petku, Mahendra Dassanayake, Gennaro Fedele
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Publication number: 20170343165Abstract: A light engine includes a first plurality of diodes coupled in series. The first plurality of diodes includes a first anode end and a first cathode end. A second plurality of diodes is coupled in series. The second plurality of diodes includes a second anode end and a second cathode end. A first terminal is electrically coupled to the first cathode end and said second anode end to form a first node. The second terminal is coupled to said first anode end. A third plurality of diodes is coupled in series. The second plurality of diodes includes a third anode end and a third cathode end. The third terminal is coupled to the third cathode end. A fourth terminal is electrically coupled to the second cathode end and the third anode end to form a first node.Type: ApplicationFiled: May 23, 2017Publication date: November 30, 2017Applicant: eLUMIGEN LLCInventors: Brian PETKU, Mahendra DASSANAYAKE, Gennaro FEDELE
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Patent number: 9829187Abstract: An assembly includes a contact interface device, a lamp base and a circuit board. This device is connected to the circuit board and is used to bias the circuit board within the center of a cavity of a light bulb. This device contains two or more biasing portions that are connected to one another through a bridge portion. The biasing portions engage an interior threaded portion of the lamp base in order to lock into place and not allow the circuit board to move. The bridge portion allows the biasing portions to counteract one another and suspend the circuit board in the middle of the cavity of the light bulb.Type: GrantFiled: October 8, 2015Date of Patent: November 28, 2017Assignee: eLumigen LLCInventors: Gennaro Fedele, Mahendra Dassanayake, Brian Petku, Kevin Nalezyty, Christopher Darr
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Patent number: 9702535Abstract: A light assembly that includes a cover, a housing coupled to the cover, and a lamp base coupled to the cover. The light assembly also includes a first circuit board disposed within the housing. The first circuit board has a plurality of light sources thereon. A heat sink is thermally coupled to the light sources and is disposed within the housing. The heat sink includes openings therethrough. Each of the outer edges is in contact with the housing. The light assembly also includes an elongated control circuit board assembly electrically coupled to the light sources of the first circuit board and the lamp base. The control circuit board extends through the openings. The control circuit board has a plurality of electrical components thereon for controlling the light sources.Type: GrantFiled: March 25, 2015Date of Patent: July 11, 2017Assignee: eLumigen, LLCInventor: Mahendra Dassanayake
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Patent number: 9651219Abstract: A light assembly includes a cover having an upper portion and a redirection portion. The cover has a longitudinal axis and a housing that is coupled to the cover. A lamp base is coupled to the housing. A circuit board is disposed within the housing. The circuit board has a plurality of light sources thereon. An internal redirection element is coupled to the circuit board and has a curvilinear shaped surface for reflecting a first portion of light from the plurality of light sources through the redirection portion of the cover and transmitting a second portion of light therethrough.Type: GrantFiled: August 10, 2015Date of Patent: May 16, 2017Assignee: eLumigen LLCInventors: Mahendra Dassanayake, Brian Petku
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Patent number: 9644824Abstract: A light assembly that includes a cover, a housing coupled to the cover, and a lamp base coupled to the cover. The light assembly also includes a first circuit board disposed within the housing. The first circuit board has a plurality of light sources thereon. A heat sink is thermally coupled to the light sources and is disposed within the housing. The heat sink includes openings therethrough. Each of the outer edges is in contact with the housing. The light assembly also includes an elongated control circuit board assembly electrically coupled to the light sources of the first circuit board and the lamp base. The control circuit board extends through the openings. The control circuit board has a plurality of electrical components thereon for controlling the light sources.Type: GrantFiled: November 24, 2014Date of Patent: May 9, 2017Assignee: eLumigen, LLCInventors: Mahendra Dassanayake, Srini De Mel, Jagath Samarabandu
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Publication number: 20160102853Abstract: An assembly includes a contact interface device, a lamp base and a circuit board. This device is connected to the circuit board and is used to bias the circuit board within the center of a cavity of a light bulb. This device contains two or more biasing portions that are connected to one another through a bridge portion. The biasing portions engage an interior threaded portion of the lamp base in order to lock into place and not allow the circuit board to move. The bridge portion allows the biasing portions to counteract one another and suspend the circuit board in the middle of the cavity of the light bulb.Type: ApplicationFiled: October 8, 2015Publication date: April 14, 2016Applicant: eLUMIGEN, LLCInventors: Gennaro FEDELE, Mahendra DASSANAYAKE, Brian PETKU, Kevin NALEZYTY, Christopher DARR
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Publication number: 20160053966Abstract: A light assembly includes a cover having an upper portion and a redirection portion. The cover has a longitudinal axis and a housing that is coupled to the cover. A lamp base is coupled to the housing. A circuit board is disposed within the housing. The circuit board has a plurality of light sources thereon. An internal redirection element is coupled to the circuit board and has a curvilinear shaped surface for reflecting a first portion of light from the plurality of light sources through the redirection portion of the cover and transmitting a second portion of light therethrough.Type: ApplicationFiled: August 10, 2015Publication date: February 25, 2016Inventors: Mahendra DASSANAYAKE, Brian PETKU
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Patent number: 9163819Abstract: A light assembly includes a light source circuit board, a plurality of light sources disposed on the light source circuit board, a housing thermally coupled to the light source circuit board and a lens cap assembly comprising a lens cap and a heat dissipation layer. The heat dissipated layer distributes heat from the light source circuit board through the lens cap and external to the light assembly.Type: GrantFiled: August 8, 2013Date of Patent: October 20, 2015Assignee: ELUMIGEN, LLCInventors: Mahendra Dassanayake, Gennaro Fedele, Srini De Mel
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Publication number: 20150198315Abstract: A light assembly that includes a cover, a housing coupled to the cover, and a lamp base coupled to the cover. The light assembly also includes a first circuit board disposed within the housing. The first circuit board has a plurality of light sources thereon. A heat sink is thermally coupled to the light sources and is disposed within the housing. The heat sink includes openings therethrough. Each of the outer edges is in contact with the housing. The light assembly also includes an elongated control circuit board assembly electrically coupled to the light sources of the first circuit board and the lamp base. The control circuit board extends through the openings. The control circuit board has a plurality of electrical components thereon for controlling the light sources.Type: ApplicationFiled: March 25, 2015Publication date: July 16, 2015Applicant: eLumigen, LLCInventor: Mahendra Dassanayake
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Publication number: 20150103512Abstract: A light assembly that includes a cover, a housing coupled to the cover, and a lamp base coupled to the cover. The light assembly also includes a first circuit board disposed within the housing. The first circuit board has a plurality of light sources thereon. A heat sink is thermally coupled to the light sources and is disposed within the housing. The heat sink includes openings therethrough. Each of the outer edges is in contact with the housing. The light assembly also includes an elongated control circuit board assembly electrically coupled to the light sources of the first circuit board and the lamp base. The control circuit board extends through the openings. The control circuit board has a plurality of electrical components thereon for controlling the light sources.Type: ApplicationFiled: November 24, 2014Publication date: April 16, 2015Applicant: ELUMIGEN, LLCInventors: Mahendra Dassanayake, Srini De Mel, Jagath Samarabandu
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Patent number: 8723424Abstract: A light assembly includes a light source circuit board and a plurality of light-emitting diodes disposed on the light source circuit board. A plurality of light pipes axially extends from and adjacent to each light-emitting diode. Each light pipe has a respective first end adjacent to the plurality of light-emitting diodes and a second end opposite to the light-emitting diodes. The plurality of light pipes communicates light from the light-emitting diodes therethrough and defines a cavity therebetween. A plurality of thermal vanes forms a heat sink for removing heat from the light-emitting diodes. The plurality of thermal vanes extend adjacent to the plurality of light pipes. A driver circuit board is disposed within the cavity.Type: GrantFiled: December 22, 2011Date of Patent: May 13, 2014Assignee: eLumigen LLCInventors: Mahendra Dassanayake, Gennaro Fedele, James A. Karchon, Alles Hiranthini
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Publication number: 20140043808Abstract: A light assembly includes a light source circuit board, a plurality of light sources disposed on the light source circuit board, a housing thermally coupled to the light source circuit board and a lens cap assembly comprising a lens cap and a heat dissipation layer. The heat dissipated layer distributes heat from the light source circuit board through the lens cap and external to the light assembly.Type: ApplicationFiled: August 8, 2013Publication date: February 13, 2014Inventors: Mahendra Dassanayake, Gennaro Fedele, Srini De Mel
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Patent number: RE48806Abstract: An assembly includes a contact interface device, a lamp base and a circuit board. This device is connected to the circuit board and is used to bias the circuit board within the center of a cavity of a light bulb. This device contains two or more biasing portions that are connected to one another through a bridge portion. The biasing portions engage an interior threaded portion of the lamp base in order to lock into place and not allow the circuit board to move. The bridge portion allows the biasing portions to counteract one another and suspend the circuit board in the middle of the cavity of the light bulb.Type: GrantFiled: November 25, 2019Date of Patent: November 2, 2021Assignee: eLUMIGEN, LLCInventors: Gennaro Fedele, Mahendra Dassanayake, Brian Petku, Kevin Nalezyty, Christopher Darr
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Patent number: RE48812Abstract: A light assembly that includes a cover, a housing coupled to the cover, and a lamp base coupled to the cover. The light assembly also includes a first circuit board disposed within the housing. The first circuit board has a plurality of light sources thereon. A heat sink is thermally coupled to the light sources and is disposed within the housing. The heat sink includes openings therethrough. Each of the outer edges is in contact with the housing. The light assembly also includes an elongated control circuit board assembly electrically coupled to the light sources of the first circuit board and the lamp base. The control circuit board extends through the openings. The control circuit board has a plurality of electrical components thereon for controlling the light sources.Type: GrantFiled: July 11, 2019Date of Patent: November 9, 2021Assignee: eLUMIGEN, LLCInventor: Mahendra Dassanayake