Technology for washing well by screw pump with hollow rotor

Application Number  00129129 Application Date  2000.09.28 Publication Number  1305048 Publication Date  2001.07.25 Priority Information     International Classification  E21B37/00   Applicant(s) Name  Inst of Oil Recovery Technology, Daqing Oil Field Co Ltd   Address     Inventor(s) Name  Wei Jide;Wang Jinsong;He Yan   Patent Agency Code  23202 Patent Agent  zhu shiwen AbstractA technology for washing Read more

Screw driver

Application Number  00128784 Application Date  2000.09.21 Publication Number  1335214 Publication Date  2002.02.13 Priority Information   2000/8/2 GB 0018957.1   International Classification  B67B7/04   Applicant(s) Name  Su Guoquan   Address     Inventor(s) Name  Su Guoquan   Patent Agency Code  11105 Patent Agent  he xiumeng AbstractThe screw driver includes one main body, one screw shaped central Read more

Reproducing method and device for stereo image in chromatographic X-ray photographic system of screw conic beam scanning computer

Application Number: 00124249Application Date: 2000.08.16Publication Number: 1290513Publication Date: 2001.04.11Priority Information: 1999/8/16 US 09/374,679International: A61B6/03Applicant(s) Name: Analoque Technology Co.Address: Inventor(s) Name: Lai JingmingPatent Agency Code: 72002Patent Agent: wu jingbeiAbstract An apparatus and method for reconstructing image data for a region are described. A radiation source and an array of detectors located on opposed sides of a Read more

Screw type open and close machine

Application Number: 00125918Application Date: 2000.08.19Publication Number: 1299905Publication Date: 2001.06.20Priority Information: International: E02B7/36Applicant(s) Name: Zhang ShizhongAddress: Inventor(s) Name: Zhang ShizhongPatent Agency Code: 00000Patent Agent: Abstract The present invention discloses a screw rod type hydraulic lifting and closing machine, which is mainly characterized by that the screw nutis divided into screw nut inner sleeve and screw nut Read more

Pile-forming method by perforating with long screw and pumping concrete

Application Number: 00110560Application Date: 2000.06.22Publication Number: 1331365Publication Date: 2002.01.16Priority Information: International: E02D5/36Applicant(s) Name: Changchun Architectural Foundation Engineering Group Co.Address: Inventor(s) Name: Hu Yojngfu;Sun HengzhanPatent Agency Code: 22100Patent Agent: zhao zhengAbstract A pile-forming technology for the saturated or unsaturated clay or sandy stratum features that a long-screw drill with central tube is used to drill hole Read more

Self-protecting liner without screw bolt connection for vertical grinder

Application Number: 00110620Application Date: 2000.11.03Publication Number: 1353014Publication Date: 2002.06.12Priority Information: International: B02C17/22Applicant(s) Name: Inst of Metals, Chinese Academy of SciencesAddress: Inventor(s) Name: Meng Yuqun;Wu Mingjie;Su ShaolingPatent Agency Code: 21002Patent Agent: zhang chenAbstract A self-protecting linear without screw bolts to link for vertical ore grinder is composed of a set of liner cells, inserted bars, limiting Read more

Method for preventing bearing failure in tail shaft of screw conveyor

Application Number: 00113631Application Date: 2000.08.19Publication Number: 1339392Publication Date: 2002.03.13Priority Information: International: B65G33/32Applicant(s) Name: Baling Branch Co., China Petrochemical Corp.Address: Inventor(s) Name: Guan Jian;guan Yong;Yang WuPatent Agency Code: 00000Patent Agent: Abstract The method of preventing bearing failure in tail shaft of screw conveyor features that one suspended frame is set between the tail shaft and the Read more

Method and device for fastening screw between glass and main unit of car lamp

Application Number: 00117614Application Date: 2000.05.24Publication Number: 1275501Publication Date: 2000.12.06Priority Information: 1999/5/26 JP 146702/99International: B25B23/08;B60Q1/00Applicant(s) Name: Koito Manufacturing Co., Ltd.Address: Inventor(s) Name: Terao Kazumichi;Mochitsuki TakuyaPatent Agency Code: 11105Patent Agent: yang wuAbstract An apparatus and a method for fastening a screw between a vehicular lighting device body and lens is provided, in which there is no possibility Read more

Swirl compressor with swirl end plate having thickness of more than height of its screw thread

Application Number: 00118006Application Date: 2000.06.06Publication Number: 1276482Publication Date: 2000.12.13Priority Information: 1999/6/8 JP 161689/99International: F04C18/02Applicant(s) Name: Mitsubishi Jukogyo K. K.Address: Inventor(s) Name: Takeuchi Naomi;Ito Takahide;Miura ShigekiPatent Agency Code: 11105Patent Agent: li xiaoshuAbstract The scroll compressor comprises a casing; a fixed scroll provided in the housing and comprising an end plate and a spiral protrusion built on Read more

Winder for internal screw copper pipe coil-drawbench

Application Number: 00119010Application Date: 2000.10.09Publication Number: 1347773Publication Date: 2002.05.08Priority Information: International: B21D22/14;B21H3/08Applicant(s) Name: Suzhou Canghuan Electromechanical Industry Co., Ltd.Address: Inventor(s) Name: Zhou Zhijun;Yan RuiPatent Agency Code: 32103Patent Agent: sun fangweiAbstract The winder for internal screw copper pipe coil-draw bench includes a circular grooved disc with a groove at its edge, a circular accepting disc beside Read more

Internal screw copper pipe machining process and its special apparatus

Application Number: 00119013Application Date: 2000.10.10Publication Number: 1347775Publication Date: 2002.05.08Priority Information: International: B21D35/00;B21H3/08Applicant(s) Name: Suzhou Canghuan Electromechanical Industry Co., Ltd.Address: Inventor(s) Name: Zhou Zhihong;Yan RuiPatent Agency Code: 32103Patent Agent: sun fangweiAbstract The present invention features that the copper pipe after being annealed in an in-situ annealing apparatus is fed to an inner screw forming machine directly Read more

Back screw lifting device for hand-held electric or pneumatic rock drill

Application Number: 00120524Application Date: 2000.10.27Publication Number: 1290803Publication Date: 2001.04.11Priority Information: International: B25D11/06;E21B1/12Applicant(s) Name: Li XuedongAddress: Inventor(s) Name: Li XuedongPatent Agency Code: 51102Patent Agent: lu zhiqiangAbstract The back screw lifting device of the present invention has a driving gear on the shaft of motor and meshed with three planetary gears, ring gear on flange casing meshed Read more

Crank installation screw for bicycle

Application Number: 00121230Application Date: 1996.08.05Publication Number: 1333161Publication Date: 2002.01.30Priority Information: 1996/2/8 JP 046657/1996; 1995/8/4 JP 219835/1995International: B62M3/00;B62M3/16;F16B23/00Applicant(s) Name: Shimano Inc.Address: Inventor(s) Name: Yamanaka MasahiroPatent Agency Code: 72002Patent Agent: li shumengAbstract A crank arm for fitting to a crank fitting to the crank axle includes a crank axle mounting section having a centering structure for centering Read more

Screw, its forming mould and its screw driver

Application Number: 00121301Application Date: 2000.07.14Publication Number: 1334411Publication Date: 2002.02.06Priority Information: International: B25B15/02;F16B23/00Applicant(s) Name: Lin ZhaoweiAddress: Inventor(s) Name: Lin ZhaoweiPatent Agency Code: 11127Patent Agent: liu lingdiAbstract A screw is composed of head and screw rod, and features that on the top face of head there are a combined slot including 4 symmetrical fan-slots and a central Read more

Box type complete screw compressor

Application Number: 00122541Application Date: 1994.02.19Publication Number: 1290817Publication Date: 2001.04.11Priority Information: International: F04C18/20Applicant(s) Name: HItachi, Ltd.Address: Inventor(s) Name: Tsuru Seishi;Horise Arakazu;Okita AtsuichiPatent Agency Code: 11038Patent Agent: wang jinglinAbstract Dry bolt compressor includes one bolt type raised tooth rotor, one bolt type depressed tooth rotor, and one casing. The raised tooth rotor and the depressed tooth rotor Read more

Screw storage

Application Number: 00123562Application Date: 2000.08.22Publication Number: 1338419Publication Date: 2002.03.06Priority Information: International: B65D85/24Applicant(s) Name: Acer Computer Co LtdAddress: Inventor(s) Name: Zhang Mucai;Su Junwei;Li BaizongPatent Agency Code: 72002Patent Agent: li shumengAbstract A screw storage for preventing the screws from being oxidized and easily taking screw out of it has a main body with a screw inlet and Read more

Method for manufacturing stator of screw pump

Application Number: 00109599Application Date: 2000.06.28Publication Number: 1273330Publication Date: 2000.11.15Priority Information: International: F04D3/02Applicant(s) Name: Sun PingAddress: Inventor(s) Name: Sun PingPatent Agency Code: 00000Patent Agent: Abstract A technology for manufacturing the stator of spiral lobe pump features that the base of pump casing is fixed in the center of bottom in constant-temp box, a stator mould is Read more

High elastic screw carbon fibre and its preparing method

Application Number: 00108831Application Date: 2000.06.07Publication Number: 1327093Publication Date: 2001.12.19Priority Information: International: D01F9/12Applicant(s) Name: Huaqiao Univ.Address: Inventor(s) Name: Chen Xiuqin;Motoshima SeijiPatent Agency Code: 00000Patent Agent: Abstract The high elastic screw carbon fiber is prepared with hydrocarbon with small amount of dissolved impurity and through chemical gaseous deposition in H2/N2 atmosphere in the presence of metal or Read more

Electric tool for fastening and loosening screw connector

Application Number: 00108397Application Date: 2000.05.17Publication Number: 1279143Publication Date: 2001.01.10Priority Information: 1999/6/23 US 09/338,616International: B25B13/46;B25B21/00Applicant(s) Name: J. K. JonecsAddress: Inventor(s) Name: J. K. JonecsPatent Agency Code: 11038Patent Agent: zheng xiuzheAbstract A power tool for tightening and loosening threaded connectors has a link having a link housing and a ratchet mechanism for turning an engaging element so Read more

Screw arbor assembly and its fastening device

Application Number: 00108396Application Date: 2000.05.17Publication Number: 1294269Publication Date: 2001.05.09Priority Information: 1999/10/22 US 09/425,331International: F16B31/04Applicant(s) Name: John K. JohncosAddress: Inventor(s) Name: John K. JohncosPatent Agency Code: 11038Patent Agent: zheng xiuzheAbstract A bolt for connecting two parts with one another has a bolt member having an axis, a threaded portion provided with a thread, and another portion Read more

Energy-saving compressor with single screw bolt

Application Number: 00107950Application Date: 2000.06.01Publication Number: 1283751Publication Date: 2001.02.14Priority Information: International: F04D19/00Applicant(s) Name: Cha QianAddress: Inventor(s) Name: Cha Shiliang;Cha QianPatent Agency Code: 11139Patent Agent: sun haochenAbstract An energy-saving compressor with single scrow bolt is composed of main shaft, main body, sprocket and screw bolt whose contour is conic surface or the combination of conic surface Read more

High-strength screw

Application Number: 00107699Application Date: 2000.05.19Publication Number: 1274812Publication Date: 2000.11.29Priority Information: 1999/5/21 JP 141272/99; 1999/10/12 JP 289294/99; 1999/12/28 JP 375677/99International: F16B25/00;F16B33/06Applicant(s) Name: Okami KoshiAddress: Inventor(s) Name: Okami KoshiPatent Agency Code: 72002Patent Agent: huang jianfengAbstract An object is to provide a high strength screw in which a high strength steel material not used in the prior art Read more

Mixedness regulating device of twin screw extruder

Application Number: 00107079Application Date: 2000.04.28Publication Number: 1271645Publication Date: 2000.11.01Priority Information: 1999/4/28 JP 121059/99International: B29C47/40Applicant(s) Name: The Japan Steel Works, Ltd.Address: Inventor(s) Name: Watada Satoru;Naito KatsuyukiPatent Agency Code: 72001Patent Agent: yang yongAbstract A cylinder is formed with an upper guide bore and a lower guide bore at a position corresponding to a gate part. Gate rods Read more

Low speed regulating screw for carburettor

Application Number: 00106293Application Date: 2000.05.10Publication Number: 1290807Publication Date: 2001.04.11Priority Information: 1999/10/1 JP 281571/99International: F02M7/24Applicant(s) Name: Kyohama Co., Ltd.Address: Inventor(s) Name: Nakadaira Akira;Sasa Toshiaki;Ogasawara KazuyukiPatent Agency Code: 11216Patent Agent: liu jiyangAbstract The present invention provides a slow adjust screw for a carburetor, wherein adjust passage formed in a carburetor main body is structured such that a Read more

Dual-safety medical screw driver

Application Number: 00106099Application Date: 2000.04.21Publication Number: 1320412Publication Date: 2001.11.07Priority Information: International: A61B17/88Applicant(s) Name: Anyang Iron and Steel Group Co., Ltd.Address: Inventor(s) Name: Feng Shiyi;Hou Jibing;Li HaoPatent Agency Code: 11019Patent Agent: bai jiajuAbstract A dual-safety medical screw driver for bone operation is composed of main screw driver, pressurizing unit and fixator. Said main screw driver consists Read more

High strength screw bolt steel with good delay resistant breaking performance

Application Number: 00105872Application Date: 2000.04.17Publication Number: 1275632Publication Date: 2000.12.06Priority Information: International: C22C38/24;C22C38/28Applicant(s) Name: Iron & Steel Research General Inst., Ministry of Metallurgical IndustryAddress: Inventor(s) Name: Hui Weijun;Dong Han;Wang MaoqiuPatent Agency Code: 11207Patent Agent: liu beiAbstract The chemical composition of a high-strength bolt steel with excellent delayed breaking-resisting performance, belonging to the field of alloy steel, Read more

Automatic composite centrifuge with double-stage filtering screw and centrifugal unloader

Application Number: 00105100Application Date: 2000.05.21Publication Number: 1324697Publication Date: 2001.12.05Priority Information: International: B04B1/12Applicant(s) Name: Dong ShoumeiAddress: Inventor(s) Name: Dong ShoumeiPatent Agency Code: 00000Patent Agent: Abstract The present invention utilizes two-stage composite drum and main shaft planetary differential transmission equipment to form said two-stage separation system combined by two separatio forms of spiral filtration and centrifugal discharge. Read more

Screw extruding grouting pile rotating machine

Application Number: 00104405Application Date: 2000.03.17Publication Number: 1314526Publication Date: 2001.09.26Priority Information: International: E02D5/34;E02D5/56Applicant(s) Name: Huang FurenAddress: Inventor(s) Name: Huang FurenPatent Agency Code: 00000Patent Agent: Abstract The present invention is one piling machine comprising frame, drive mechanism, rotary drilling mechanism, and features that the drive mechanism drives vertical spline shaft, screw column with inner spline and screw Read more

Double side expanding screw

Application Number: 00103919Application Date: 2000.03.01Publication Number: 1311401Publication Date: 2001.09.05Priority Information: International: F16B13/06Applicant(s) Name: Meng XianghouAddress: Inventor(s) Name: Meng XianghouPatent Agency Code: 00000Patent Agent: Abstract A double side expanding screw is mainly to be used for fixing the articles on the constructions made of bricks and concrete. It is designed with double side expansion tube and Read more

Full buried double side expanding screw

Application Number: 00103917Application Date: 2000.03.01Publication Number: 1311400Publication Date: 2001.09.05Priority Information: International: F16B13/06Applicant(s) Name: Meng XianghouAddress: Inventor(s) Name: Meng XianghouPatent Agency Code: 00000Patent Agent: Abstract A double-side expanding screw of all buried type is mainly to be used for fixing the articles on the constructions made of bricks and concrete. It is designed with expansion head Read more