Patents by Inventor Martin Kwan Yu Leung
Martin Kwan Yu Leung 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: 11906096Abstract: A thermal expansion compensating device has a conduit with a first opening and a second opening for connection to a first pipe and a second pipe of a hot water system, respectively, the first and second pipes being formed by removing a section from a length of pipe of the hot water system. A pre-tensioning force is applied to the device to axially displace the first opening from the second opening until after connection of the openings of the pipes. A resiliently deformable pipe segment defines a portion of the conduit between the first opening and the second opening and is resiliently deformed to a tensioned position by the application of the pre-tensioning force. Once the hot water system is activated, the pipes axially thermally expand such that the first opening moves towards the second opening and the pipe segment moves from the tensioned position towards a rest position decreasing the stress on the device.Type: GrantFiled: October 27, 2021Date of Patent: February 20, 2024Assignee: IPEX TECHNOLOGIES INC.Inventors: Martin Kwan Yu Leung, Ivan Lee Stiehl
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Publication number: 20220049808Abstract: A thermal expansion compensating device has a conduit with a first opening and a second opening for connection to a first pipe and a second pipe of a hot water system, respectively, the first and second pipes being formed by removing a section from a length of pipe of the hot water system. A pre-tensioning force is applied to the device to axially displace the first opening from the second opening until after connection of the openings of the pipes. A resiliently deformable pipe segment defines a portion of the conduit between the first opening and the second opening and is resiliently deformed to a tensioned position by the application of the pre-tensioning force. Once the hot water system is activated, the pipes axially thermally expand such that the first opening moves towards the second opening and the pipe segment moves from the tensioned position towards a rest position decreasing the stress on the device.Type: ApplicationFiled: October 27, 2021Publication date: February 17, 2022Inventors: Martin Kwan Yu Leung, Ivan Lee Stiehl
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Publication number: 20210386137Abstract: A frame extending from a first end to a second with a curved portion therebetween has a first dual hooking member at the first end and a second dual hooking member at the second end. Each dual hooking member has a strap hook, facing away from their respective ends, and an external hook, facing toward their respective ends. The strap hooks engage selected holes in a resilient elastomeric strap to bias the first end to the second end across a gap therebetween to frictionally hold the frame to a user's forehead. While the frame is frictionally held to the user's forehead, the external hooks extend externally from the strap to engage opposed strings of a face mask on the users face, and, a visor can be releasably secured to the frame in a visor functional position with a see-through area in front of the user's eyes.Type: ApplicationFiled: June 10, 2020Publication date: December 16, 2021Inventors: Filippo MARTINO, James Bruce Anthony CAMPBELL, Jis SIMON, Martin Kwan Yu LEUNG
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Patent number: 11193618Abstract: A thermal expansion compensating device has a conduit with a first opening and a second opening for connection to a first pipe and a second pipe of a hot water system, respectively, the first and second pipes being formed by removing a section from a length of pipe of the hot water system. A pre-tensioning force is applied to the device to axially displace the first opening from the second opening until after connection of the openings of the pipes. A resiliently deformable pipe segment defines a portion of the conduit between the first opening and the second opening and is resiliently deformed to a tensioned position by the application of the pre-tensioning force. Once the hot water system is activated, the pipes axially thermally expand such that the first opening moves towards the second opening and the pipe segment moves from the tensioned position towards a rest position decreasing the stress on the device.Type: GrantFiled: October 31, 2018Date of Patent: December 7, 2021Assignee: IPEX TECHNOLOGIES INC.Inventors: Martin Kwan Yu Leung, Ivan Lee Stiehl
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Patent number: 10401027Abstract: A non-return valve having an accumulation damper movable relative to a housing and shaped like a bowl to accumulate condensate running down from the chimney. The non-return valve has a smaller floating damper made of a material having a density less than water for resting against the accumulation damper when the appliance is in standstill and sealing the drainage holes in the accumulation damper when the condensate accumulation is below a threshold. Once condensate accumulates in the accumulation damper beyond the threshold, the floating damper is buoyed by the condensate thereby breaking the seal with the drainage holes and permitting the condensate to drain through drainage holes in the accumulation damper. When the appliance is operational, exhaust from the appliance lifts the floating damper and, in some cases, the accumulation damper also, to permit exhaust of combustion gases up the chimney.Type: GrantFiled: March 28, 2017Date of Patent: September 3, 2019Assignee: IPEX TECHNOLOGIES INC.Inventors: Martin Kwan Yu Leung, Filippo Martino
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Publication number: 20190162349Abstract: A thermal expansion compensating device has a conduit with a first opening and a second opening for connection to a first pipe and a second pipe of a hot water system, respectively, the first and second pipes being formed by removing a section from a length of pipe of the hot water system. A pre-tensioning force is applied to the device to axially displace the first opening from the second opening until after connection of the openings of the pipes. A resiliently deformable pipe segment defines a portion of the conduit between the first opening and the second opening and is resiliently deformed to a tensioned position by the application of the pre-tensioning force. Once the hot water system is activated, the pipes axially thermally expand such that the first opening moves towards the second opening and the pipe segment moves from the tensioned position towards a rest position decreasing the stress on the device.Type: ApplicationFiled: October 31, 2018Publication date: May 30, 2019Inventors: Martin Kwan Yu Leung, Ivan Lee Stiehl
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Publication number: 20180283685Abstract: A non-return valve having an accumulation damper movable relative to a housing and shaped like a bowl to accumulate condensate running down from the chimney. The non-return valve has a smaller floating damper made of a material having a density less than water for resting against the accumulation damper when the appliance is in standstill and sealing the drainage holes in the accumulation damper when the condensate accumulation is below a threshold. Once condensate accumulates in the accumulation damper beyond the threshold, the floating damper is buoyed by the condensate thereby breaking the seal with the drainage holes and permitting the condensate to drain through drainage holes in the accumulation damper. When the appliance is operational, exhaust from the appliance lifts the floating damper and, in some cases, the accumulation damper also, to permit exhaust of combustion gases up the chimney.Type: ApplicationFiled: March 28, 2017Publication date: October 4, 2018Applicant: IPEX TECHNOLOGIES, INC.Inventors: MARTIN KWAN YU LEUNG, FILIPPO MARTINO
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Patent number: 10088156Abstract: In a preferred embodiment, there is provided a water heater venting assembly for directing a combustion air and a flue gas between an outdoor atmosphere and a water heater, and which includes a generally hollow housing defining a combustion air aperture, a flue gas exhaust conduit disposed in the housing, and an adjustable inlet duct coupling assembly having a retention member for placement in the housing proximal to the aperture, a gasket for placement around an outer periphery of the aperture and a combustion air supply member. The retention member is for retaining the supply member in fluid sealing engagement with the gasket to effect fluid communication between the aperture and the supply member, and is sized to permit slidable movement of the supply member relative to the gasket.Type: GrantFiled: June 2, 2017Date of Patent: October 2, 2018Inventors: Martin Kwan Yu Leung, Ivan Lee Stiehl
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Publication number: 20170356646Abstract: In a preferred embodiment, there is provided a water heater venting assembly for directing a combustion air and a flue gas between an outdoor atmosphere and a water heater, and which includes a generally hollow housing defining a combustion air aperture, a flue gas exhaust conduit disposed in the housing, and an adjustable inlet duct coupling assembly having a retention member for placement in the housing proximal to the aperture, a gasket for placement around an outer periphery of the aperture and a combustion air supply member. The retention member is for retaining the supply member in fluid sealing engagement with the gasket to effect fluid communication between the aperture and the supply member, and is sized to permit slidable movement of the supply member relative to the gasket.Type: ApplicationFiled: June 2, 2017Publication date: December 14, 2017Inventors: Martin Kwan Yu LEUNG, Ivan Lee STIEHL
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Patent number: D798423Type: GrantFiled: December 21, 2015Date of Patent: September 26, 2017Assignee: IPEX TECHNOLOGIES INC.Inventors: Ian Aubin, Martin Kwan Yu Leung
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Patent number: D837742Type: GrantFiled: May 15, 2017Date of Patent: January 8, 2019Assignee: IPEX TECHNOLOGIES INC.Inventors: Martin Kwan Yu Leung, Aaron Kitagawa
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Patent number: D857858Type: GrantFiled: October 24, 2017Date of Patent: August 27, 2019Assignee: IPEX TECHNOLOGIES INC.Inventors: Martin Kwan Yu Leung, Ivan Lee Stiehl
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Patent number: D873389Type: GrantFiled: January 5, 2018Date of Patent: January 21, 2020Assignee: IPEX TECHNOLOGIES INC.Inventor: Martin Kwan Yu Leung
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Patent number: D882738Type: GrantFiled: January 5, 2018Date of Patent: April 28, 2020Assignee: IPEX TECHNOLOGIES INC.Inventor: Martin Kwan Yu Leung
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Patent number: D900983Type: GrantFiled: April 15, 2019Date of Patent: November 3, 2020Assignee: IPEX TECHNOLOGIES INC.Inventor: Martin Kwan Yu Leung
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Patent number: D906496Type: GrantFiled: May 31, 2019Date of Patent: December 29, 2020Assignee: IPEX TECHNOLOGIES INC.Inventors: Martin Kwan Yu Leung, Ivan Lee Stiehl