Patents by Inventor Lingling He
Lingling He 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: 11919818Abstract: A rapid sintering system and rapid sintering method, the rapid sintering system comprising: a furnace body (110) comprising a hearth (111) and a furnace mouth (112) that communicate with each other; a lifting device (120) arranged below the furnace mouth (112), comprising a support (122) and a sample stage (121), the sample stage (121) being disposed on the support (122); a temperature acquisition device (130), disposed on the sample stage (121); a control device (140), disposed outside of the hearth (111), electrically connected to the lifting device (120) and the temperature acquisition device (130) and used to control lifting of the lifting device (120) according to a temperature acquired by the temperature acquisition device (130) and a preset sintering condition; and a spacer (150), disposed at a first end of the lifting device (120), a first spacing being present between the spacer (150) and the sample stage (121), and the furnace mouth (112) is blocked by the spacer (150) when the rapid sintering systeType: GrantFiled: August 28, 2017Date of Patent: March 5, 2024Assignee: Liaoning Upcera Co., Ltd.Inventors: Lingling He, Wanting Xia, Ying Guo, Yingying Bai, Chengwei Han
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Patent number: 11835508Abstract: The present invention discloses a model test device for ground collapse caused by pipeline leakage, including a sand box, a pipeline water circulation device, a groundwater replenishment device, a water storage tank and a water head measuring pipe set. The sand box includes a sand box body and a mesh sieve plate. There are two mesh sieve plate which divides an inner cavity of the sand box into a penetration cavity and a test cavity. Corresponding positions on the side wall of the test cavity are provided with a tunnel construction hole and a plurality of pipe mounting hole groups, respectively. One side wall of the test cavity is provided with a plurality of rows. There is a plurality of rows of water head measuring hole groups, and each row is provided with a plurality of the water head measuring hole groups.Type: GrantFiled: April 20, 2021Date of Patent: December 5, 2023Assignee: CHINA UNIVERSITY OF GEOSCIENCESInventors: Fei Tan, Zhongmin Mao, Yuyong Jiao, Lingling He, Jiahe Lv, Junpeng Zou, Yi Cheng, Fubin Tu
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Patent number: 11384982Abstract: A dual-purpose sintering furnace including a furnace body having a furnace chamber, a first furnace mouth and a second furnace mouth which are communicated with the furnace chamber, a furnace door hinged to the furnace body and configured for closing the first furnace mouth, a blocking member lap-jointed inside the furnace chamber and configured for blocking the second furnace mouth, a sample stage, an ejection rod fixedly arranged on a sample placement face of the sample stage, a lifting device configured for driving the sample stage to raise or lower, so that the ejection rod pushes the blocking member until the second furnace mouth is opened, and so that the sample stage enters the furnace chamber through the second furnace mouth. The dual-purpose sintering furnace can complete a large amount of sintering as conventional sintering and also implement rapid sintering.Type: GrantFiled: June 14, 2017Date of Patent: July 12, 2022Assignee: LIAONING UPCERA CO., LTD.Inventors: Lingling He, Yao Xu, Ying Guo, Huailing Li, Jialing Li
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Publication number: 20220192804Abstract: A pre-sintered porcelain block for dental restoration; the pre-sintered porcelain block does not contain crystal phases and has a Vickers hardness of 0.5-2 GPa. Due to a hardness which is significantly lower than that of the porcelain block containing a lithium metasilicate crystal phase, the pre-sintered porcelain block may be processed by using dry machining and can simultaneously be processed by using wet machining when being mechanically processed into a dental restoration shape.Type: ApplicationFiled: April 15, 2019Publication date: June 23, 2022Inventors: Lingling HE, Guoyi SONG, Cheng HOU, Chengwei HAN, Zhongliang ZHAO, Jialing LI
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Publication number: 20220177358Abstract: Disclosed is a pre-sintered ceramic block for a dental restoration, which has a low pre-sintering temperature, contains a silica main crystal phase, but does not contain or contains a small amount of lithium metasilicate crystal phase. The pre-sintered ceramic block has a low hardness, with a Vickers hardness of 0.5-3 GPa, which is significantly lower than that of a ceramic block containing a lithium metasilicate crystal phase, and same is suitable for dry machining and also wet machining when being machined into a dental restoration. (FIG.Type: ApplicationFiled: April 15, 2019Publication date: June 9, 2022Inventors: Lingling HE, Guoyi SONG, Cheng HOU, Chengwei HAN, Zhongliang ZHAO, Jialing LI
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Publication number: 20220179122Abstract: The present invention discloses a model test device for ground collapse caused by pipeline leakage, including a sand box, a pipeline water circulation device, a groundwater replenishment device, a water storage tank and a water head measuring pipe set. The sand box includes a sand box body and a mesh sieve plate. There are two mesh sieve plate which divides an inner cavity of the sand box into a penetration cavity and a test cavity. Corresponding positions on the side wall of the test cavity are provided with a tunnel construction hole and a plurality of pipe mounting hole groups, respectively. One side wall of the test cavity is provided with a plurality of rows. There is a plurality of rows of water head measuring hole groups, and each row is provided with a plurality of the water head measuring hole groups.Type: ApplicationFiled: April 20, 2021Publication date: June 9, 2022Inventors: Fei Tan, Zhongmin Mao, Yuyong Jiao, Lingling He, Jiahe Lv, Junpeng Zou, Yi Cheng, Fubin Tu
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Patent number: 10995992Abstract: Disclosed is a sintering furnace comprising a furnace body and a lifting device, wherein the furnace body comprises a furnace chamber (10) and a furnace mouth (20), the furnace chamber (10) is connected with the furnace mouth (20), wherein the sintering furnace further comprises a sealing member (30) provided at the lifting device; when the sintering furnace is in a loading or unloading condition, the sealing member (30) blocks the furnace mouth (20). When the sintering furnace is in an unloading condition, the sealing member (30) can block the furnace mouth (20), the furnace chamber (10) does not contact with the outside directly, thus the temperature in the furnace chamber (10) will not drop sharply, and the service life of the sintering furnace will be increased.Type: GrantFiled: June 6, 2017Date of Patent: May 4, 2021Assignee: LIAONING UPCERA CO., LTDInventors: Lingling He, Wanting Xia, Ying Guo, Yingying Bai, Chengwei Han, Dapeng Yuan
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Publication number: 20200173722Abstract: A dual-purpose sintering furnace including a furnace body having a furnace chamber, a first furnace mouth and a second furnace mouth which are communicated with the furnace chamber, a furnace door hinged to the furnace body and configured for closing the first furnace mouth, a blocking member lap jointed inside the furnace chamber and configured for blocking the second furnace mouth, a sample stage, an ejection rod fixedly arranged on a sample placement face of the sample stage, a lifting device configured for driving the sample stage to raise or lower, so that the ejection rod pushes the blocking member until the second furnace mouth is opened, and so that the sample stage enters the furnace chamber through the second furnace mouth. The dual-purpose sintering furnace can complete a large amount of sintering as conventional sintering and also implement rapid sintering.Type: ApplicationFiled: June 14, 2017Publication date: June 4, 2020Applicants: Jurgen MasterDental Co., Ltd., Liaoning Upcera Co., Ltd.Inventors: Lingling HE, Yao XU, Ying GUO, Huailing LI, Jialing LI
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Publication number: 20200055782Abstract: A rapid sintering system and rapid sintering method, the rapid sintering system comprising: a furnace body (110) comprising a hearth (111) and a furnace mouth (112) that communicate with each other; a lifting device (120) arranged below the furnace mouth (112), comprising a support (122) and a sample stage (121), the sample stage (121) being disposed on the support (122); a temperature acquisition device (130), disposed on the sample stage (121); a control device (140), disposed outside of the hearth (111), electrically connected to the lifting device (120) and the temperature acquisition device (130) and used to control lifting of the lifting device (120) according to a temperature acquired by the temperature acquisition device (130) and a preset sintering condition; and a spacer (150), disposed at a first end of the lifting device (120), a first spacing being present between the spacer (150) and the sample stage (121), and the furnace mouth (112) is blocked by the spacer (150) when the rapid sintering systeType: ApplicationFiled: August 28, 2017Publication date: February 20, 2020Inventors: Lingling HE, Wanting XIA, Ying GUO, Yingying BAI, Chengwei HAN
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Patent number: 10556835Abstract: A method for post-processing a colored zirconium oxide ceramic, the method comprising: putting the colored zirconium oxide ceramic along with a deoxidant into a heating device, conducting a firing process at a preset temperature, and a colorant containing Pr3+ is used for the coloring, and the deoxidant is excessive with respect to a stoichiometric amount of oxygen in the heating device. The technical solution can completely replace Fe3+ with Pr3+ to color the zirconium oxide ceramic yellow.Type: GrantFiled: September 22, 2015Date of Patent: February 11, 2020Assignee: LIAONING UPCERA DENTAL CO., LTDInventors: Lingling He, Yanchun Zheng, Ying Guo
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Publication number: 20190219336Abstract: Disclosed is a sintering furnace comprising a furnace body and a lifting device, wherein the furnace body comprises a furnace chamber (10) and a furnace mouth (20), the furnace chamber (10) is connected with the furnace mouth (20), wherein the sintering furnace further comprises a sealing member (30) provided at the lifting device; when the sintering furnace is in a loading or unloading condition, the sealing member (30) blocks the furnace mouth (20). When the sintering furnace is in an unloading condition, the sealing member (30) can block the furnace mouth (20), the furnace chamber (10) does not contact with the outside directly, thus the temperature in the furnace chamber (10) will not drop sharply, and the service life of the sintering furnace will be increased.Type: ApplicationFiled: June 6, 2017Publication date: July 18, 2019Inventors: Lingling HE, Wanting XIA, Ying GUO, Yingying BAI, Chengwei HAN, Dapeng YUAN
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Publication number: 20170341992Abstract: A method for post-processing a colored zirconium oxide ceramic, the method comprising: putting the colored zirconium oxide ceramic along with a deoxidant into a heating device, conducting a firing process at a preset temperature, and a colorant containing Pr3+ is used for the coloring, and the deoxidant is excessive with respect to a stoichiometric amount of oxygen in the heating device. The technical solution can completely replace Pe3+ with Pr3+ to color the zirconium oxide ceramic yellow.Type: ApplicationFiled: September 22, 2015Publication date: November 30, 2017Inventors: Lingling HE, Yanchun ZHENG, Ying GUO
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Patent number: 9554881Abstract: A coloring solution for dental zirconia ceramics and a method for using the same are provided. The coloring solution consists of coloring agents, a solvent, and an additive. The coloring agents are a combination of two or more rare earth metal compounds, wherein the rare earth metal compounds having rare earth metal ions selected from the group consisting of praseodymium (Pr) ions, erbium (Er) ions, cerium (Ce) ions, and neodymium (Nd) ions. The concentration of the rare earth metal ions in the solution is 0.05˜3 mol/liter solvent. The molar ratio of Pr ions:Er ions:Ce ions:Nd ions in the solution is 1:(10˜50):(0˜20):(0˜30).Type: GrantFiled: April 28, 2013Date of Patent: January 31, 2017Assignee: SHENZHEN UPCERA DENTAL TECHNOLOGY CO., LTD.Inventors: Hongjuan Wang, Qingyun Yan, Dongbin Huang, Lingling He, Yanchun Zheng
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Publication number: 20150122147Abstract: A coloring solution for dental zirconia ceramics and a method for using the same are provided. The coloring solution consists of coloring agents, a solvent, and an additive. The coloring agents are a combination of two or more rare earth metal compounds, wherein the rare earth metal compounds having rare earth metal ions selected from the group consisting of praseodymium (Pr) ions, erbium (Er) ions, cerium (Ce) ions, and neodymium (Nd) ions. The concentration of the rare earth metal ions in the solution is 0.05˜3 mol/liter solvent. The molar ratio of Pr ions:Er ions:Ce ions:Nd ions in the solution is 1:(10˜50):(0˜20):(0˜30).Type: ApplicationFiled: April 28, 2013Publication date: May 7, 2015Inventors: Hongjuan Wang, Qingyun Yan, Dongbin Huang, Lingling He, Yanchun Zheng
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Patent number: 8697176Abstract: The present invention relates to a method for changing translucency of zirconia dental materials through applying an yttrium or ytterbium salt solution onto a pre-sintered zirconia material by dipping or brush-coating. Accordingly, the need of young patient in relation to the translucent requirement for incisal portion of anterior teeth is met in which the translucent level from the crown neck to the incisal portion is gradually changed in a natural manner, similar to natural teeth. A color gradient effect of the crown is produced through dipping in or brush-coating with yttrium or ytterbium salt solution. Moreover, the present invention involves simple operating steps and low cost while providing high consistency in quality.Type: GrantFiled: November 21, 2011Date of Patent: April 15, 2014Assignee: Liaoning Upcera Co., Ltd.Inventors: Hongjuan Wang, Qingyun Yan, Lingling He, Yanchun Zheng
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Publication number: 20130115365Abstract: The present invention relates to a method for changing translucency of zirconia dental materials through applying an yttrium or ytterbium salt solution onto a pre-sintered zirconia material by dipping or brush-coating. Accordingly, the need of young patient in relation to the translucent requirement for incisal portion of anterior teeth is met in which the translucent level from the crown neck to the incisal portion is gradually changed in a natural manner, similar to natural teeth. A color gradient effect of the crown is produced through dipping in or brush-coating with yttrium or ytterbium salt solution. Moreover, the present invention involves simple operating steps and low cost while providing high consistency in quality.Type: ApplicationFiled: November 21, 2011Publication date: May 9, 2013Applicant: LIAONING UPCERA CO. LTD.Inventors: Hongjuan Wang, Qingyun Yan, Lingling He, Yanchuan Zheng