Patents Assigned to URSATECH LTD.
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Patent number: 11794043Abstract: A system for use with a ceiling fixture, a portion of which projects though an opening in a ceiling wall, for assisting in preventing spread of fire through the opening. The system has a metal collar for lining the opening. The metal collar has an upper rim overlying a top surface of the ceiling wall at the opening, a middle section facing an inner edge of the ceiling wall at the opening and a lower rim underlying a bottom surface of the ceiling wall at the opening. The system also has an intumescent ring for surrounding the projecting portion of the fixture so as to be interposed between the metal collar and the projecting portion of the fixture.Type: GrantFiled: December 10, 2019Date of Patent: October 24, 2023Assignee: URSATECH LTD.Inventors: Xiaoxiong Luo, John B. Page
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Patent number: 11408570Abstract: An intumescent firestop element is supported within a light can by fire sensitive supports each having a base fabricated of a meltable or flammable material and a supporting element fabricated of metal and supported by the base, with the base joined to the light can. In response to a fire, the fire sensitive supports cease to support the firestop element which drops to a deployed position in the light can until arrested by a limiter.Type: GrantFiled: June 4, 2020Date of Patent: August 9, 2022Assignee: URSATECH LTD.Inventors: Xiaoxiong Luo, John B. Page
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Patent number: 10704751Abstract: An intumescent firestop element is supported within a light can by fire sensitive supports each having a base fabricated of a meltable or flammable material and a supporting element fabricated of metal and supported by the base, with the base joined to the light can. In response to a fire, the fire sensitive supports cease to support the firestop element which drops to a deployed position in the light can until arrested by a limiter.Type: GrantFiled: September 13, 2018Date of Patent: July 7, 2020Assignee: URSATECH LTD.Inventors: Xiaoxiong Luo, John B. Page
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Patent number: 10593921Abstract: A battery housing has a body and a lid mateable with the body. The body and the lid, when mated, provide a chamber dimensioned to hold at least one battery; and a venting passageway from the chamber. At least a portion of at least one of the body and the lid comprises an intumescent flame retardant material with an expansion ratio sufficient to drive gas from the chamber through the venting passageway and to seal the chamber when the material intumesces in the event of thermal runaway of a battery housed in the chamber.Type: GrantFiled: September 25, 2017Date of Patent: March 17, 2020Assignee: URSATECH LTD.Inventors: John B. Page, Xiaoxiong Luo
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Patent number: 10551016Abstract: A firestop element is provided which is fabricated from a polymer intumescent composition. The element is associated with a light can of a downlight. In some embodiments, the firestop element drops to a deployed position in the light can in the event of a fire.Type: GrantFiled: October 23, 2017Date of Patent: February 4, 2020Assignee: URSATECH LTD.Inventors: Xiaoxiong Luo, John B. Page
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Patent number: 9853267Abstract: A battery housing has a body and a lid mateable with the body. The body and the lid, when mated, provide a chamber dimensioned to hold at least one battery; and a venting passageway from the chamber. At least a portion of at least one of the body and the lid comprises an intumescent flame retardant material with an expansion ratio sufficient to drive gas from the chamber through the venting passageway and to seal the chamber when the material intumesces in the event of thermal runaway of a battery housed in the chamber.Type: GrantFiled: February 3, 2014Date of Patent: December 26, 2017Assignee: URSATECH LTD.Inventors: John B. Page, Xiaoxiong Luo
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Patent number: 9803845Abstract: A firestop element is provided which is fabricated from a polymer intumescent composition. The element is associated with a light can of a downlight. In some embodiments, the firestop element drops to a deployed position in the light can in the event of a fire.Type: GrantFiled: November 26, 2014Date of Patent: October 31, 2017Assignee: URSATECH LTD.Inventors: Xiaoxiong Luo, John B. Page
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Patent number: 9797563Abstract: A firestop element is provided which is fabricated from a polymer intumescent composition. The element is associated with a light can of a downlight. In some embodiments, the firestop element drops to a deployed position in the light can in the event of a fire.Type: GrantFiled: May 29, 2015Date of Patent: October 24, 2017Assignee: URSATECH LTD.Inventors: Xiaoxiong Luo, John B. Page