Patents by Inventor Xudong ZENG
Xudong ZENG 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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Publication number: 20220323964Abstract: Thermal cycling apparatus for polymerase chain reaction (PCR) of nucleic acid is provided. Bath media in a first bath and a second bath are maintainable at two different temperatures. A transfer means allows the reactor to be in the two baths in a plurality of thermal cycles to alternately attain a predetermined high target temperature THT and a predetermined low target temperature TLT. A florescent imaging means images the reaction material during the thermal cycling. A powder-cleaning device mechanically removes particles of powder that adhere to the reactor, when powder is the bath medium in use in at least one of the baths.Type: ApplicationFiled: July 15, 2020Publication date: October 13, 2022Applicant: STAR ARRAY PTE LTDInventors: Haiqing GONG, Xudong ZENG
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Patent number: 11155376Abstract: A cigarette filter rod boxing machine, including a cigarette filter rod holding mechanism and a cigarette filter rod pushing mechanism. The cigarette filter rod holding mechanism includes a lifting groove and a lifting power mechanism. The cigarette filter rod pushing mechanism includes a bottom plate, a middle push plate, a middle push vertical plate, an upper push plate, and an upper push plate limiting mechanism. The middle push vertical plate is vertically fixed on one side of the middle push plate, and the other side of the middle push vertical plate is precisely opposite to the other side of the U-shaped groove body. The first power mechanism used for controlling the middle push plate and the components on the middle push plate to advance to or return from the inside of the lifting groove is arranged between the bottom plate and the middle push plate.Type: GrantFiled: December 31, 2019Date of Patent: October 26, 2021Assignee: ZHENGZHOU HAIYI TECHNOLOGY CO. LTD.Inventors: Haiping Zhang, Jianfang Wang, Hui Liang, Xudong Zeng, Shuhua Zhao, Juqing Liu, Yizhen Chang, Kexin Shui
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Publication number: 20210086930Abstract: A cigarette filter rod boxing machine, including a cigarette filter rod holding mechanism and a cigarette filter rod pushing mechanism. The cigarette filter rod holding mechanism includes a lifting groove and a lifting power mechanism. The cigarette filter rod pushing mechanism includes a bottom plate, a middle push plate, a middle push vertical plate, an upper push plate, and an upper push plate limiting mechanism. The middle push vertical plate is vertically fixed on one side of the middle push plate, and the other side of the middle push vertical plate is precisely opposite to the other side of the U-shaped groove body. The first power mechanism used for controlling the middle push plate and the components on the middle push plate to advance to or return from the inside of the lifting groove is arranged between the bottom plate and the middle push plate.Type: ApplicationFiled: December 31, 2019Publication date: March 25, 2021Applicant: Zhengzhou Haiyi Technology Co. ltd.Inventors: Haiping ZHANG, Jianfang WANG, Hui LIANG, Xudong ZENG, Shuhua ZHAO, Juqing LIU, Yizhen CHANG, Kexin SHUI
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Publication number: 20200282401Abstract: Method and apparatus for thermal processing of nucleic acid in a thermal profile is provided. The method employs at least a first bath and a second bath, the method further employing a reactor holder for holding reactor(s) accommodating reaction material containing the nucleic acid. The method comprises maintaining bath mediums in the baths at two different temperatures; and alternately allowing the reactor(s) to be in the two baths in a plurality of thermal cycles to alternately attain a predetermined high target temperature THT, and a predetermined low target temperature TLT, wherein the bath medium in at least one of the baths is a high thermal conductivity powder.Type: ApplicationFiled: June 7, 2017Publication date: September 10, 2020Inventors: HAIQING GONG, WEN YAN, XUDONG ZENG
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Patent number: 10569273Abstract: A method and an apparatus for thermal processing of nucleic acid in a thermal profile. The method employs at least a first bath and a second bath, the method further employing a reactor holder for holding reactor(s) accommodating reaction material containing the nucleic acid. The method includes maintaining bath mediums in the baths at two different temperatures; and alternately allowing the reactor(s) to be in the two baths in a plurality of thermal cycles to alternately attain a predetermined high target temperature THT, and a predetermined low target temperature TLT, wherein the bath medium in at least one of the baths is a high thermal conductivity powder.Type: GrantFiled: November 26, 2018Date of Patent: February 25, 2020Assignee: STAR ARRAY PTE LTDInventors: Haiqing Gong, Yan Wen, Xudong Zeng
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Publication number: 20190134639Abstract: An apparatus for thermal processing of nucleic acid in a thermal profile. The apparatus employs a reactor holder for holding reactors to accommodate reaction material containing nucleic acid. The apparatus includes at least two baths separated by thermally insulating partition plate(s) where bath mediums are each maintainable at a predetermined temperature; and a transfer means for allowing the reactors to change position once or plurality of times between any two adjacent baths by selectively opening the partition plate(s) and without lifting the reactors out of the baths.Type: ApplicationFiled: December 6, 2018Publication date: May 9, 2019Applicant: STAR ARRAY PTE LTDInventors: Haiqing GONG, Yan WEN, Xudong ZENG
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Publication number: 20190118184Abstract: Apparatus and method for thermal processing of nucleic acid in a thermal profile is provided. The apparatus employs a reactor holder for holding reactor(s) each accommodating reaction material containing the nucleic acid. The apparatus comprises a first bath; and a second bath, bath mediums in the baths being respectively maintainable at two different temperatures THIGH and TLOW; and a transfer means for allowing the reactor(s) to be in the two baths in a plurality of thermal cycles to alternately attain: a predetermined high target temperature THT, and a predetermined low target temperature TLT, while the apparatus adapts to a temperature-offset feature defined by at least one condition from the group consisting: a) the THT is lower than the THIGH, b) the TLT is higher than the TLOW, and c) the conditions at a) and b).Type: ApplicationFiled: June 9, 2017Publication date: April 25, 2019Applicant: STAR ARRAY PTE LTDInventors: Haiqing GONG, Yan WEN, Xudong ZENG
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Publication number: 20190111435Abstract: An apparatus for thermally processing reaction material containing nucleic acid is provided. A reaction material is contained in reactors. The apparatus includes a reactor holder for statically holding the reactors; at least two heating means each being maintainable at a user specifiable temperature; and a transport means for positioning the heating means to make a contact with the reactors one at a time for specified duration. The positioning is conductable once or over a plurality of times for thermally processing the reactors between a plurality of temperatures.Type: ApplicationFiled: December 10, 2018Publication date: April 18, 2019Applicant: STAR ARRAY PTE LTDInventors: Haiqing GONG, Yan WEN, Xudong ZENG
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Publication number: 20190105656Abstract: An apparatus for thermal processing nucleic acid in a thermal profile. The apparatus employs a reactor holder for holding reactor(s) each accommodating reaction material containing the nucleic acid. The apparatus includes a first bath; and a second bath, bath mediums in the baths being respectively maintainable at two different temperatures; and a transfer means for allowing the reactor(s) to be in the two baths in a plurality of thermal cycles to alternately attain: a predetermined high target temperature THT, and a predetermined low target temperature TLT; and reciprocating means to enable relative reciprocating motion between the holder and at least one bath while the reactor(s) is/are placed in the at least one bath, the relative reciprocating motion being executable by shaking the bath or the holder or both.Type: ApplicationFiled: December 6, 2018Publication date: April 11, 2019Applicant: STAR ARRAY PTE LTDInventors: Haiqing GONG, Yan WEN, Xudong ZENG
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Publication number: 20190091694Abstract: A method and an apparatus for thermal processing of nucleic acid in a thermal profile. The method employs at least a first bath and a second bath, the method further employing a reactor holder for holding reactor(s) accommodating reaction material containing the nucleic acid. The method includes maintaining bath mediums in the baths at two different temperatures; and alternately allowing the reactor(s) to be in the two baths in a plurality of thermal cycles to alternately attain a predetermined high target temperature THT, and a predetermined low target temperature TLT, wherein the bath medium in at least one of the baths is a high thermal conductivity powder.Type: ApplicationFiled: November 26, 2018Publication date: March 28, 2019Applicant: STAR ARRAY PTE LTDInventors: Haiqing GONG, Yan WEN, Xudong ZENG