Tag Archives: FILTER

Method for preventing sealing failure of sintered metal filter element for hydroxylamine catalyst filter

Application Number: 00113401Application Date: 2000.04.26Publication Number: 1320471Publication Date: 2001.11.07Priority Information: International: B01D35/02;B01D35/153Applicant(s) Name: Yingshan Petro-Chemical Plant, Baling Petro-Chemical Co.Address: Inventor(s) Name: Guan JianPatent Agency Code: 00000Patent Agent: Abstract A method for preventing the sealing failure of sintered metallic filter element in hydroxylamine catalyst filter features that annular slot is made on the filter element surface… Read More »

Dielectric filter, dielectric duplexer and communication equipment using the same

Application Number: 00118770Application Date: 2000.06.23Publication Number: 1287391Publication Date: 2001.03.14Priority Information: 1999/6/25 JP 179675/99International: H01P1/201Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Kuroda Katsuto;Ishihara Jinnakoto;Kato HideyukiPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract A dielectric filter and a dielectric duplexer have simple structures, in each of which the resonance frequency of a TE mode is controlled in… Read More »

Water filter

Application Number: 00124497Application Date: 2000.09.13Publication Number: 1342506Publication Date: 2002.04.03Priority Information: International: B01D36/02;C02F1/00Applicant(s) Name: Ding YeAddress: Inventor(s) Name: Ding YePatent Agency Code: 00000Patent Agent: Abstract A water filter is composed of coarse water filter, water filter and fine water filter, and is aimed at filtering the daily used water.

Anerobic hydrolysis and high-performance biological filter as water treating system

Application Number: 00115740Application Date: 2000.05.17Publication Number: 1323749Publication Date: 2001.11.28Priority Information: International: C02F3/28Applicant(s) Name: Tongyi Univ.Address: Inventor(s) Name: Yang Jian;Lu YongsenPatent Agency Code: 31202Patent Agent: tan shenweiAbstract Anaerobic hydrolysis-high efficiency biological filtering tank water treatment system is composed of grillage, aeration and sand precipitation tank, anaerobic hydrolysis tank, elastic filler biological filtering pool, secondary precipitation pool… Read More »

Auto-cleaning and screen net type oil filter

Application Number: 00121178Application Date: 2000.08.01Publication Number: 1336523Publication Date: 2002.02.20Priority Information: International: F24C15/20Applicant(s) Name: Tang JianzhongAddress: Inventor(s) Name: Tang JianzhongPatent Agency Code: 00000Patent Agent: Abstract The invention relates to a kitchen ventilator. The characteristics of this kind of automatic creen fume filter are as follows. Such screen filter is specially installed in fume channel where the… Read More »

Dielectric filter, dielectric duplexer and communication equipment system

Application Number: 00126982Application Date: 2000.09.01Publication Number: 1287392Publication Date: 2001.03.14Priority Information: 2000/7/18 JP 217842/00; 1999/9/3 JP 250249/99International: H01P1/205Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Okada Takako;Ishihara Jinsei;Kato HideyukiPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract This invention provides a dielectric filter and a dielectric duplexer that can improve an out-band attenuation characteristic in the vicinity of… Read More »

Chestnut shell adsorption filter material and its making process

Application Number: 00110914Application Date: 2000.02.29Publication Number: 1311050Publication Date: 2001.09.05Priority Information: International: B01D39/04;B01J20/24Applicant(s) Name: Ren QingyunAddress: Inventor(s) Name: Ren QingyunPatent Agency Code: 37100Patent Agent: jiang mengAbstract The present invention relates to walnut shell filtering material and its making technology. The particle size of walnut shell is 0.4 to 2.5 mm. Walnut shell is crushed, screened, high… Read More »

Glass for optical filter, and optical filter

Application Number: 00118012Application Date: 2000.06.05Publication Number: 1286230Publication Date: 2001.03.07Priority Information: 1999/8/30 JP 242973/99International: C03C3/062;C03C3/076;C03C4/00;G02B5/28Applicant(s) Name: K.K. OharaAddress: Inventor(s) Name: Goto NaoyukiPatent Agency Code: 72001Patent Agent: lu xinhuaAbstract Glass for a light filter capable of preventing variation of refractive index in a band-pass filter has a coefficient of thermal expansion within a range from 90 x… Read More »

Impedance blocking filter circuit

Application Number: 00122790Application Date: 2000.08.09Publication Number: 1283920Publication Date: 2001.02.14Priority Information: 1999/8/9 US 09/370,137International: H04M1/74Applicant(s) Name: Exellsas Tech. Co., Ltd.Address: Inventor(s) Name: F.J. JicoPatent Agency Code: 31100Patent Agent: qian weiminAbstract An impedance blocking filter circuit is provided for use in telecommunication systems, which comprises: first, second, and third inductors connected in series between a first input… Read More »

Process for cyclically regenerating cellular filter core

Application Number: 00113504Application Date: 2000.06.23Publication Number: 1330983Publication Date: 2002.01.16Priority Information: International: B01J38/00Applicant(s) Name: Chen YangAddress: Inventor(s) Name: Chen Guoqi;Chen Shu;Chen YangPatent Agency Code: 00000Patent Agent: Abstract A process for cyclically regenerating cellular filter core includes classifying the waste cellular filter cores, immersing, immersing in acid, pressure rinsing, bleaching, washing in water, removing residual chlorine, washing… Read More »

Module socket with connector for filter and connector thereof

Application Number: 00118873Application Date: 2000.06.22Publication Number: 1278666Publication Date: 2001.01.03Priority Information: 1999/6/22 US 09/338,354International: H01R13/648;H01R13/66Applicant(s) Name: Connector System Tech. co.Address: Inventor(s) Name: Yakof Buieluopolisgi;Robert E. MachelPatent Agency Code: 11038Patent Agent: zhang jinxiAbstract A modular jack has an insulative insert having outer walls defining a first recess therein. The insert is mounted within an insulating housing interior… Read More »

Transverse flow filter

Application Number: 00124591Application Date: 2000.09.25Publication Number: 1290566Publication Date: 2001.04.11Priority Information: International: B01D24/02;B01D24/10Applicant(s) Name: Wang QuanxiAddress: Inventor(s) Name: Wang QuanxiPatent Agency Code: 00000Patent Agent: Abstract The transverse flow filter is one vertical cylinder structure and filter mode is transverse flow one with filtering area four times that of similar vertical flow filter. The filamentous filtering material… Read More »

Phase-shifting filter for projecting etching imaging

Application Number: 00116190Application Date: 2000.10.20Publication Number: 1350193Publication Date: 2002.05.22Priority Information: International: G02B27/46Applicant(s) Name: Inst. of Photoelectronic Techn, Chinese Academy of SciencesAddress: Inventor(s) Name: Chen Xunan;Luo Xiangang;Yao HanminPatent Agency Code: 51200Patent Agent: zhang yigongAbstract The present invention relates to a projection photo-etching image phase-shifting filter equipment, consisting of light source, condenser group, imaging objective and silicon… Read More »

Method for prepn. of filter element

Application Number: 00121355Application Date: 2000.07.21Publication Number: 1298989Publication Date: 2001.06.13Priority Information: 1996/6/3 JP 139814/1996; 1995/7/28 JP 193818/1995International: B01D39/18;D21J5/00Applicant(s) Name: Denso K.K.Address: Inventor(s) Name: Sugiura Masaudo;Murase Toshihiro;Sanami HirosaPatent Agency Code: 72002Patent Agent: gan lingAbstract A filter element for use in an oil filter is composed of main fibers of at least 5 mu m diameter and micro… Read More »

Double-pipe press filter

Application Number: 00110997Application Date: 2000.04.07Publication Number: 1269255Publication Date: 2000.10.11Priority Information: International: B01D29/15;B01D29/82;B01D29/84Applicant(s) Name: Zheng PingxiAddress: Inventor(s) Name: Zheng PingxiPatent Agency Code: 00000Patent Agent: Abstract A pulp washing equipment is characterized by that it possesses on internal pipe with water-filtering pores and an external pipe with water-filtering pores, the above-mentioned internal pipe is sleeve-mounted in the… Read More »

Medium wave filter, medium duplexer and communication equipemtn using same

Application Number: 00118028Application Date: 2000.05.29Publication Number: 1275822Publication Date: 2000.12.06Priority Information: 1999/5/27 JP 147992/99; 2000/3/28 JP 89253/00International: H01P1/205;H01P1/213Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Hiroshima Motoharu;Nishijima Kohachi;Kato HideoyukiPatent Agency Code: 31100Patent Agent: shen zhaokunAbstract A dielectric filter and a dielectric duplexer adapted to two frequency bands formed by using a single component are disclose, in… Read More »

Packing method of cigarette with filter tip

Application Number: 00123067Application Date: 2000.10.12Publication Number: 1348901Publication Date: 2002.05.15Priority Information: International: B65B19/04Applicant(s) Name: Han RuixingAddress: Inventor(s) Name: Han RuixingPatent Agency Code: 21100Patent Agent: he gongAbstract The present invention relates to packaging method of filter tip cigaertte, the filter tip end of cigarette is put at the bottom part of rectangular packaging box, the box cover… Read More »

Wavelet filter for data compression and decompression

Application Number: 00113587Application Date: 2000.08.01Publication Number: 1336729Publication Date: 2002.02.20Priority Information: International: H03M7/30Applicant(s) Name: Wang GuoqiuAddress: Inventor(s) Name: Wang GuoqiuPatent Agency Code: 43113Patent Agent: xia jingAbstract The small wave filter is used to do small wave decomposition and small wave reconsitution for the data needing to compress or decompress. In the invention method, selected is a… Read More »

Method and device for cleaning filter

Application Number: 00119312Application Date: 2000.06.29Publication Number: 1280026Publication Date: 2001.01.17Priority Information: 1999/7/9 JP 195840/99International: B01D41/04Applicant(s) Name: Kawasaki Jukogyo K.K.Address: Inventor(s) Name: Hatanaka Shingo;Ebina ShojiPatent Agency Code: 11105Patent Agent: li xiaoshuAbstract In a method and apparatus for cleaning filter, the cleaning is efficiently performed by selecting cleaning steps according to the degree of contamination of the filter… Read More »

Stripping two-way filter

Application Number: 00124592Application Date: 2000.09.25Publication Number: 1290567Publication Date: 2001.04.11Priority Information: International: B01D24/18;B01D24/46Applicant(s) Name: Wang QuanxiAddress: Inventor(s) Name: Wang QuanxiPatent Agency Code: 00000Patent Agent: Abstract The stripping two-way filter is one vertical cylinder structure and its filtering mode is vertical two-way filtering with a filtering area two times that of similar single-way filter. The filter has… Read More »

Method and device for implementing N-order interpolation filter

Application Number: 00116472Application Date: 2000.06.13Publication Number: 1328381Publication Date: 2001.12.26Priority Information: International: H03H17/02Applicant(s) Name: Huawei Technology Co LtdAddress: Inventor(s) Name: Gui Yijun;Zhu JingningPatent Agency Code: 31100Patent Agent: zuo yibengAbstract A method and device for implementing N-order interpolation filter features use of (N-1)-order comb filter, zero-order holder and (N-1)-order integrator. The signals are processed by sequentially passing… Read More »

Tandem basket type filter and siphonage proof valve device for jet nozzle and the like

Application Number: 00121374Application Date: 2000.07.25Publication Number: 1285244Publication Date: 2001.02.28Priority Information: 1999/8/23 US 09/379042International: B05B1/30Applicant(s) Name: Masco Corp.Address: Inventor(s) Name: Ato Karl Almendinger;Gari Robin MartiPatent Agency Code: 72003Patent Agent: pan peikunAbstract A hand held spray spout (10) has a basket filter (26) seated against an anti-siphon valve (24) proximate the base end of a water passage… Read More »

Submicron graphite particle filter cake, black-background electrically conductive paint and preparing process thereof

Application Number: 00111024Application Date: 2000.04.21Publication Number: 1320666Publication Date: 2001.11.07Priority Information: International: C09D5/24Applicant(s) Name: Xite Electrochemical Materials Co., Ltd, YantaiAddress: Inventor(s) Name: Yin Lihui;Luo Ming;Liu TiegangPatent Agency Code: 00000Patent Agent: Abstract The present invention relates to the filter cake of submicron-class graphite particles, the black-background electrically conductive paint, and its preparing process. Said paint is prepared… Read More »

Orthogonal modulator with integrated distributive resistance-capacitance filter

Application Number: 00118117Application Date: 1995.09.14Publication Number: 1290064Publication Date: 2001.04.04Priority Information: 1994/9/14 US 08/305702International: H03H1/02;H04L27/20Applicant(s) Name: Ericsson Inc.Address: Inventor(s) Name: P.W. DentPatent Agency Code: 72001Patent Agent: li efeiAbstract A quadrature modulator for generation of complex modulated signals includes a unique pair of balanced, low-pass filters which, through a switching arrangement for switching into and out of… Read More »

Microporous ceramic filter element

Application Number: 00123311Application Date: 2000.11.24Publication Number: 1355059Publication Date: 2002.06.26Priority Information: International: B01D39/20;C04B33/00;C04B35/14;C04B38/00Applicant(s) Name: Qiu BaochenAddress: Inventor(s) Name: Qiu BaochenPatent Agency Code: 22204Patent Agent: luan shuhuaAbstract A novel microporous ceramic filter element for filtering industrial liquid is prepared from diatomite osmatrix and compounding with organic/inorganic adhesive through mixing, shaping and calcining. Its advantages include low cost,… Read More »

Modularized parallel extended, unified controlled active power filter

Application Number: 00113666Application Date: 2000.09.04Publication Number: 1319929Publication Date: 2001.10.31Priority Information: International: H02J3/01;H02J3/18Applicant(s) Name: Xiao QianghuiAddress: Inventor(s) Name: Xiao QianghuiPatent Agency Code: 43105Patent Agent: wang fananAbstract The active power filter includes PWM controller and PWM current transformer, line voltage synchronous directional control circuit and voervoltage, undervoltage, overcurrent and short-circuit failure detection and protecting circuit, the module… Read More »

Centrifugal filter

Application Number: 00119448Application Date: 2000.07.13Publication Number: 1334146Publication Date: 2002.02.06Priority Information: International: B04B1/00;B04B7/16;B04B11/08Applicant(s) Name: Shen PangluAddress: Inventor(s) Name: Shen PangluPatent Agency Code: 31128Patent Agent: shen yuanAbstract A centrifugal filter is composed of base, casing, screw shaft with spiral blades and rotary sieve. Said screw shaft has one end linked to base via front axle and bearing… Read More »

Inductance-capacitance filter

Application Number: 00124891Application Date: 2000.09.21Publication Number: 1289180Publication Date: 2001.03.28Priority Information: 1999/9/21 JP 266728/1999International: H03H7/09Applicant(s) Name: Murata Manufacturing Co., Ltd.Address: Inventor(s) Name: Uchida Katsuyuki;Sugitani ShobiPatent Agency Code: 11021Patent Agent: zhu haibeiAbstract An LC filter includes a capacitor with a small residual inductance, and having a good attenuation property up to a high frequency range, so as… Read More »

Apparatus for viewing gas leakage and water inpurity filter of gas range water heater

Application Number: 00117135Application Date: 2000.06.06Publication Number: 1285489Publication Date: 2001.02.28Priority Information: International: F24H1/16Applicant(s) Name: Luo ZhixingAddress: Inventor(s) Name: Luo ZhixingPatent Agency Code: 00000Patent Agent: Abstract The present invention relates to gas leakage observation and water impurity filter equipment for gas (stove) water-heater, and is characterized by that the gas water-heater is matched with the leakage-resisting storage… Read More »

Optical filter

Application Number: 00121973Application Date: 2000.07.27Publication Number: 1281973Publication Date: 2001.01.31Priority Information: 1999/7/27 JP 212190/1999International: G02F1/225;H04B10/18Applicant(s) Name: Sumitomo Electric Industries Ltd.Address: Inventor(s) Name: Hatayama Kin;Sasaoka EishiPatent Agency Code: 11038Patent Agent: wang sibengAbstract The present invention relates to an optical filter comprising a simple structure which easily realizes slope control of loss spectrum in a signal wavelength band… Read More »