Patents by Inventor CHENGWEI HAN

CHENGWEI HAN 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).

  • Patent number: 11919818
    Abstract: 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 syste
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: March 5, 2024
    Assignee: Liaoning Upcera Co., Ltd.
    Inventors: Lingling He, Wanting Xia, Ying Guo, Yingying Bai, Chengwei Han
  • Publication number: 20220192804
    Abstract: 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: Application
    Filed: April 15, 2019
    Publication date: June 23, 2022
    Inventors: Lingling HE, Guoyi SONG, Cheng HOU, Chengwei HAN, Zhongliang ZHAO, Jialing LI
  • Publication number: 20220177358
    Abstract: 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: Application
    Filed: April 15, 2019
    Publication date: June 9, 2022
    Inventors: Lingling HE, Guoyi SONG, Cheng HOU, Chengwei HAN, Zhongliang ZHAO, Jialing LI
  • Patent number: 10995992
    Abstract: 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: Grant
    Filed: June 6, 2017
    Date of Patent: May 4, 2021
    Assignee: LIAONING UPCERA CO., LTD
    Inventors: Lingling He, Wanting Xia, Ying Guo, Yingying Bai, Chengwei Han, Dapeng Yuan
  • Publication number: 20200055782
    Abstract: 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 syste
    Type: Application
    Filed: August 28, 2017
    Publication date: February 20, 2020
    Inventors: Lingling HE, Wanting XIA, Ying GUO, Yingying BAI, Chengwei HAN
  • Publication number: 20190219336
    Abstract: 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: Application
    Filed: June 6, 2017
    Publication date: July 18, 2019
    Inventors: Lingling HE, Wanting XIA, Ying GUO, Yingying BAI, Chengwei HAN, Dapeng YUAN
  • Patent number: 10180377
    Abstract: A test bed for electric wheel comprehensive performance is characterized in that the test bed comprises a foundation, a portal frame set on the foundation and including a cross beam and two columns supporting both ends of the cross beam individually, a main pin arm movably connected to the portal frame, and a main rotation shaft revolvably and perpendicularly mounted on the top of the main pin arm, wherein the electric wheel is mounted on the main pin arm and is located inside of the portal frame and right below the main rotation shaft. The test bed further comprises at least one of a road simulation mechanism, an inertia simulation mechanism, a driving power mechanism, a perpendicular loading mechanism, and a steering mechanism which take the simulation test on the electric wheel.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: January 15, 2019
    Assignee: SHENZHEN POLYTECHNIC
    Inventors: Ping He, Chengwei Han, Zhurong Dong, Songhua Hu
  • Publication number: 20170059451
    Abstract: A test bed for electric wheel comprehensive performance is characterized in that the test bed comprises a foundation, a portal frame set on the foundation and including a cross beam and two columns supporting both ends of the cross beam individually, a main pin arm movably connected to the portal frame, and a main rotation shaft revolvably and perpendicularly mounted on the top of the main pin arm, wherein the electric wheel is mounted on the main pin arm and is located inside of the portal frame and right below the main rotation shaft. The test bed further comprises at least one of a road simulation mechanism, an inertia simulation mechanism, a driving power mechanism, a perpendicular loading mechanism, and a steering mechanism which take the simulation test on the electric wheel.
    Type: Application
    Filed: November 11, 2014
    Publication date: March 2, 2017
    Inventors: PING HE, CHENGWEI HAN, ZHURONG DONG, SONGHUA HU