baber/WOPTO huggingface dataset:
Patent CN-113441807-B (CN)
Title: 一种工业电源元器件的焊接装置
IPC: B23K3/00
Filed: 2021-06-28
Granted: 2022-04-29
Abstract: 本发明涉及焊接设备技术领域，且公开了一种工业电源元器件的焊接装置，手柄的顶部固定连接有位于手柄外围的环套，滑槽的内部套接有伸出手柄底部位置的保护套，加热体的中部固定安装有烙铁头，保护套顶部与滑槽顶壁之间呈对称固定安装有波纹管，手柄两侧中部的内部开设有呈U型的液压孔，液压孔的外侧端活动套接有液压按钮，手柄内部位于滑槽与液压孔之间开设有分别与其连通的环腔，转槽与环腔之间活动安装有磁块，手柄内部位于环腔两侧中部靠上的位置开设有开关腔，开关腔内部活动安装有磁性闸刀，开关腔内部靠近环腔侧固定安装有磁性闸槽，该焊接装置利用保护套、环套和内部的电路结构设置使用时更加节能环保和安全。
Patent CN-113433034-B (CN)
IPC: G01N11/00
Filed: 2021-06-28
Granted: 2022-07-01
Abstract: 本发明公开了一种浇注式沥青混合料温度感应流动度测定仪，属于沥青桥面铺装技术领域。该仪器包括容器、支架和重锤。容器和支架由不锈钢制成；支架附有可以控制松紧度的螺栓和导向装置；重锤下部为铜制半球体，上部的导向管内部设置了温度感应装置，它可以将测得的温度转化为频率信号借由带电缆送入频率转换器后计数并译码，最终将温度与流动度秒数显示在导向管的显示器上。目前传统的浇注式沥青混合料流动度测定仪虽然构造简单，但是使用时需要两至三人同时操作并且在精度上存在偏差。本发明通过加入温度感应装置，将温度计、秒表和重锤结合为一个整体，仅需要一人即可完成操作，不仅操作简单，节省人力，并且测得的数据精确直观。
Patent CN-113484546-B (CN)
Title: 一种扫描隧道显微镜针尖处理装置
IPC: G01Q70/16
Filed: 2021-07-20
Granted: 2022-06-03
Abstract: 本发明涉及一种扫描隧道显微镜针尖处理装置，该装置包括真空腔体、外接电源和位于真空腔体内部的退火组件。真空腔体包括视窗法兰、带有电路接线端子的法兰、泵组及其接口法兰、真空规及其接口法兰、控制内部退火钨丝移动的驱动装置和控制内部样品台位置的驱动装置；退火组件包括钨丝、固定钨丝的支撑杆、针托样品架和样品台。该针尖处理装置能够实现在真空条件下对扫描隧道显微镜的针尖进行退火，可以有效热解和脱附针尖表面的氧化层和污染物，从而在真空腔体内部直接获得导电性质良好、工作状态稳定的金属针尖。
Patent CN-113385052-B (CN)
IPC: B01D71/02
Filed: 2021-07-22
Granted: 2022-04-08
Abstract: 本发明公开一种低成本氧化铝基陶瓷平板膜的制备方法，所述陶瓷平板膜包括支撑体和膜层两部分，所述支撑体采用挤出成型的方法制备，所述膜层采用喷涂法涂覆在支撑体生坯外表面，所述支撑体生坯和膜层共同干燥后，采用“支撑体+膜层”一步共烧结工艺制得陶瓷平板膜。该法缩短了陶瓷平板膜的制备周期，减少了烧结次数，在时间和能源耗用方面节省了大量成本。本发明通过支撑体和膜层间的颗粒级配，减小两者在高温烧结时产生的收缩率差异，制得的陶瓷平板膜表面平整，无裂纹，孔径分布集中，具有良好的热稳定性、化学稳定性和力学性能。
Patent CN-113353883-B (CN)
Title: 一种基于相位检测原理的mems压力传感器及制备方法
IPC: G01L1/14
Filed: 2021-08-09
Granted: 2021-11-30
Abstract: 本发明提供一种基于相位检测原理的MEMS压力传感器及制备方法，包括：CPW传输线，设置在衬底上，该CPW传输线包括CPW信号线以及位于CPW信号线两侧的CPW地线，CPW信号线与CPW地线相互平行，凹槽设置在衬底上且位于CPW信号线下方；MEMS梁，位于凹槽的底面和靠近CPW地线的两个侧面上并呈倒置的拱桥状，且与CPW地线相连接；MEMS薄膜位于凹槽上方，并与CPW信号线的底面接触，其两端置于CPW地线上，并与凹槽形成密闭腔体。利用密闭腔体来感测外部环境的压强，RF信号在CPW传输线上传输前后的相位差发生变化，从而通过测量RF信号的相位便可获取环境压强。
Patent CN-113360701-B (CN)
IPC: G06F16/55
Filed: 2021-08-09
Granted: 2021-11-02
Abstract: 本发明公开了一种基于知识蒸馏的素描图处理方法及其系统，包括：获取预训练的由图像分类模型构成的教师模型，并基于教师模型提取样本图像的教师特征和教师分类概率；构建能够基于素描图进行图像分类的学生模型，并基于学生模型提取样本图像的第一学生特征和第一学生分类概率，并基于学生模型提取样本图像对应样本素描图的第二学生特征和第二学生分类概率；基于教师特征、教师分类概率、第一学生特征、第一学生分类概率、第二学生特征和第二学生分类概率计算分类损失和蒸馏损失，并基于分类损失和蒸馏损失更新学生模型；学生模型基于待检测素描图和待查询图像生成零样本跨模态检索结果。
Patent CN-113510920-B (CN)
IPC: B29C35/16
Filed: 2021-09-10
Granted: 2021-12-10
Abstract: 本发明公开了一种吹塑薄膜的生产设备，包括机箱，机箱的上侧固设有开口向上的辅料箱，辅料箱内开设有辅料腔，辅料腔内设有辅料进料机构，辅料进料机构用于控制辅料的进入，辅料腔的下侧固设有混合箱，混合箱的下侧开设有运输腔，运输腔内设有混合运输机构，运输腔的下侧设有熔化出料机构，熔化出料机构的上侧设有风冷机构，机箱的上侧固设有冷却除湿箱，通过辅料进料机构的工作能够在进行运料的过程中，同时通过螺旋台进行运输，能够有效的对物料进行混合，通过设置风冷机构对塑料薄膜进行四周内外的冷却，同时对塑料薄膜进行冷却的空气进行了除尘除湿工作，防止塑料薄膜在冷却过程中因为粉尘和水汽影响生产的质量。
Patent CN-113530463-B (CN)
Title: 一种便于调节的石油开采用勘测装置
IPC: E21B15/00
Filed: 2021-09-15
Granted: 2021-12-03
Abstract: 本发明公开了一种便于调节的石油开采用勘测装置，涉及石油技术领域，主要是为了解决现有的石油开采用勘测装置存在调节不便的问题，包括承载部、转动机构和移动机构，转动机构内的驱动部带动转动部在固定套装件内旋转，固定套装件上安装有第二传动齿轮，移动机构内的活动部与转动部和啮合部连接，移动机构内的传动组件包括蜗杆和活动套装件，蜗杆上开设有第一限位槽、凹槽和第二限位槽，活动套装件上安装有第二限位凸起，移动机构在跟随转动机构旋转的过程中，可通过手动调节活动套装件的方式，将活动套装件上的第二限位凸起在蜗杆上的第一限位槽、凹槽和第二限位槽之间来回移动，以此来达到快速调节钻孔设备的角度或者位置的目的。
Patent CN-113575381-B (CN)
IPC: A01G25/16
Filed: 2021-09-29
Granted: 2021-12-10
Abstract: 本发明公开了隐蔽式园林浇灌自动喷雾装置及自动喷雾系统，涉及园林园艺技术领域，包括喷雾器、连通管架和固定杆架，若干喷雾器依次通过与连通管架和固定杆架插接构成喷雾网架结构；喷雾器内设内喷管和调节套，内喷管内部安装有涡轮，通过设置喷雾器、连通管架和固定杆架，能够根据园林区域进行对应的组装埋设，同时在安装过程中三者均埋设于土壤内部，避免了喷雾器暴露于地面上方影响其他园艺工作的情况；通过设置内喷管、调节套和涡轮，在喷雾过程中利用高压水流带动涡轮旋转，再通过齿轮联动结构带动调节套旋转调整喷雾的方向；通过设置举升电机和齿条，实现内喷管与固定管架之间的滑动关系，能够对喷雾高度和范围进行调节控制。
Patent CN-113851114-B (CN)
IPC: G10L15/02
Filed: 2021-11-26
Granted: 2022-02-15
Abstract: 本发明提供一种语音信号的基频确定方法和装置，属于数据信号处理领域。所述方法包括：获取待处理的音频信号；在所述待处理的音频信号中，逐音节获取至少一个目标语音信号；确定所述目标语音信号的基频基准值；根据所述基频基准值，确定所述目标语音信号的每帧信号的基频。采用本发明，可以提高基频检测结果的准确性。
Patent CN-113983787-B (CN)
IPC: F26B25/02
Filed: 2021-12-03
Granted: 2022-05-20
Abstract: 本发明公开了一种饲料颗粒加工用烘干装置，包括支撑盘、进气组件和驱动机构，所述支撑盘的上方设置有若干料盒组件，若干料盒组件沿支撑盘的轴线圆周均布；若干料盒组件共同连接一个驱动机构，驱动机构用于带动各料盒组件绕支撑盘轴线旋转；进气组件用于向料盒组件内部通入气体；所述料盒组件包括外框，所述外框内部固定连接有支撑板，且支撑板的底部与外框的底部相齐平；所述支撑板的一侧边缘铰接有第一连接板，第一连接板远离支撑板的一侧边缘铰接有第二连接板；本发明能够均匀快速烘干饲料颗粒，且能够减少饲料颗粒之间的粘接、凝结。
Patent CN-113883984-B (CN)
IPC: G01B5/04
Filed: 2021-12-07
Granted: 2022-03-04
Abstract: 本发明适用于数据线长度计量技术领域，提供了一种用于数据线检测的长度计量装置，所述用于数据线检测的长度计量装置包括：操作台，所述操作台上安装有安装架，所述操作台上设置有传导组件，所述传导组件中设置有数据线；导向板，安装在所述操作台上，所述导向板上安装有控制组件；驱动组件，安装在所述安装架上，所述驱动组件上连接有安装块，所述安装块上安装有牵拉组件；启动驱动组件，则驱动组件会带动牵拉组件运转，进而通过与控制组件之间的配合关系，通过往复式拉动数据线的方式进行传输，且每次拉动数据线传输的长度相等，并根据拉动次数，通过驱动组件自动计算出传输长度，实现已传输的数据线的长度计量工作。
Patent GE-P19960402-B (GE)
Title: Device for Remote Metering and Control of Water Expenditure in the Large Diameter Pipes
Inventor: KHAINDRAVA TEIMURAZ
IPC: G01F1/00
Filed: 1993-07-26
Abstract: This device refers to the technical means of mete¬ring and control of water expenditure in the large diameter (300 mm or more) pipes and can be used in the urban objects of water supplying systems at determining of drinking water expenditure in the pipelines of large diameter.     The technical result of the invention is preciseness, the work reliability and increase in functional possibilites.     On the horizontal level in large diameter pipes at a distance of 0,242 from the inner radius of the pipe a hydraulic shunt of the small diameter bent pipe (e.g. din = 50 mm), with gyroscopewheel and a mechanical mirror counter placed in it is brought in and installed. The frequency of flow impulses, obtained by diode infra - red ray irradiation of wheel impulse modulation is an average velocity of the water - flow in the metered pipe, and the corresponding characteristics of the seconds expenditure for various values of average velocities is programmed beforehand in the microschemes of constant memory.      The device automaticaly questions this microscheme, the corresponding code characteristics of the seconds expenditure in respect with average velocities. The device also makes the digital integration of the seconds expenditure in any time interval, and the similar registering device makes graphic registration of the seconds expenditure within the time.
Patent GE-P19991655-B (GE)
Title: Prestresssed Reinforced Concrete Pile
Inventor: STURUA USHANGI
IPC: E02D27/12
Filed: 1997-04-15
Abstract: 1. Technical Result Increase in the carrying capacity of the pile.            2. Essence A reinforced concrete pile comprises rods 8 of the same length, the ends of which are in pairs introduced into the holes disposed by the circumference of the rings 1. The rods are inclined under the equal angles and in opposite directions.             3. Field of Application Construction, in particular antimudflow, civil and industrial constructions.             4fig.
Patent GE-P20032949-B (GE)
Title: Method and Device for Hydrocarbon Conversion
Inventor: CZERNICHOWSKI (FR) M PIOTR
IPC: C01B3/34
Filed: 1998-08-28
Abstract: 1. Technical Result Improvement of conversion technology.          2. Essence A method comprises treating hydrocarbons accompanied by their steam reforming and/or reforming with CO2 in a plasma reactor consisting of two compartments. The first compartment is provided with gliding electric discharges that form plasma. The flow of products activated by the plasma from the first compartment comes into contact with a metal placed in the second compartment.          3. Field of Application Chemical technology.
Patent GE-P20022856-B (GE)
Title: Device for Quenching Impact Power in Transport Means
Inventor: SHIOSHVILI TAMAZ
IPC: B60R19/02
Filed: 2001-06-08
Abstract: 1. Tehnical Result Increase in security.         2. Essence A device comprises disposed at the beginning and at the end of the transport means a system of buffers and springs arranged in pairs and obliquely disposed levers 1 and 4, which from their side are hingedly connected to a rigid frame 3. The ends of the levers 1 and 4 are resiliently or rigidly connected therebetween, the connection of the lower ends 7 additionally comprises longitudinally and laterally disposed system 6 of preliminarily strained flat springs, and the system in itself is rigidly connected to the rigid frame 3 by means of cables. The rigid frame comprises longitudinally and laterally disposed supports 9 and obliquely disposed cables 10.         3. Field of Application Transport means.
Patent CA-1289492-C (CA)
Title: Process for the production of chymosin
Inventor: CAREY NORMAN H
IPC: A61K39/395
Filed: 1983-06-07
Granted: 1991-09-24
Abstract: A PROCESS FOR THE PREPARATION OF CHYMOSIN                  ABSTRACT          There is described a process for the preparation of chymosin in which an insoluble form of a chymosin precursor, such as methionine-chymosin, is produced by a host organism, such as Saccharomyces cerevisiae or E.coli, transformed with a vector including a gene coding for the chymosin precursor,  wherein the insoluble  form of the chymosin precursor is solubilised to produce a soluble native form of the chymosin precursor prior to cleaving the soluble native form of the chymosin precursor to produce chymosin.    The  solubilisation  involves  denaturing the insoluble  chymosin  precursor  and then  allowing  it  to renature forming the normal or native form of the chymosin precursor.   The native form may then be cleaved to form chymosin.  The denaturants used include aqueous solutions of urea or guanidine hydrochloride and alkaline solutions of pH between pH 9.5 and pH 11.5 either separately or in combination.    In  a  particular type  of  colubilisation described, the insoluble chymosin precursor is denatured using a urea or guanidine hydrochloride solution.   The resulting  solution  is then  diluted  into  an  alkaline solution  to  yield  the  native  form  of  the  chymosin precursor.
Patent CA-1292617-C (CA)
Title: Apparatus for the gasification of a pulverized solid fuel
Inventor: VAN DER BURGT MAARTEN J
IPC: F23K3/02
Filed: 1985-02-19
Granted: 1991-12-03
Abstract: A B S T R A C T         Apparatus for the gasification of a pulverized solid fuel, comprising a gasification reactor with at least one pair of burners arranged opposite to each other in the side wall of the reactor, and at least one fuel supply with fuel lines to the burners, the fuel lines which are connected with the burners of one pair, being symmetrical and originating from one common fuel supply.
Patent CA-1337119-C (CA)
Title: Conduite calorifugee de facon etanche pour le transport de fluides
Inventor: DRIDI HAMADI
IPC: F16L/
Filed: 1985-04-24
Granted: 1995-09-26
Abstract: L'invention est relative à une conduite calorifugée pour le transport de fluides comportant autour d'un tube ou noyau central une structure d'isolation thermique. Elle comporte autour dudit tube ou noyau interne (1) une pluralité de cloisons annulaires (3) réparties sur la longueur dudit noyau et solidaires de celui-ci, un matériau d'isolatlon (6) remplissant les chambres annulaires ménagées entre les faces frontales des cloisons successives et le revêtement extérieur (2) du noyau interne, et une gaine externe extrudée en continu (4) concentriquement audit noyau et solidaire des surfaces périphériques desdites cloisons annulaires et dudit matériau d'isolation.
Patent CA-1267216-C (CA)
Title: Piezoelectric device
Inventor: SONI PRAVIN L
IPC: H10N30/095
Filed: 1985-07-08
Granted: 1990-03-27
Abstract: ABRIDGEMENT A piezoelectric device comprising a first conductor, a conductive polymer member which contacts the first conduc-tor, a piezoelectric polymer member which contacts the con-ductive polymer member but which is separated from the first conductor and which has been rendered piezoelectric by stretching and polarizing it while it is in contact with the conductive polymer member, and a second conductor which con-tacts the piezoelectric polymer member but which is separated from both the conductive polymer and the first conductor.
Patent CA-1276584-C (CA)
Title: Compositions solides a base de superoxydes a conduction ionique elevee, leur procede de fabrication et leurs applications electrochimiques
Inventor: JEANNE FRANCIS
IPC: B01D53/32
Filed: 1986-02-14
Granted: 1990-11-20
Abstract: Les compositions solides a base de superoxyde de l'invention comportent un matériau inerte vis-à-vis des anions O2- jouant le rôle de matrice à l'égard de ces anions, et des anions O2 - ces compositions formant un matériau stable jusqu'à environ 100.degree.C. Cette matrice permet la mobilité des ions O2- dans ce domaine de température. Ces compositions sont utilisables comme electrolytes dans une cellule électrochimique.
Patent CA-1278526-C (CA)
Title: Circuit arrangements for modifying dynamic range using action substitution and superposition techniques
Inventor: DOLBY RAY M
IPC: H03G7/00
Filed: 1986-06-09
Granted: 1991-01-02
Abstract: ABSTRACT OF THE DISCLOSURE              CIRCUIT ARRANGEMENTS FOR MODIFYING DYNAMIC RANGE USING ACTION SUBSTITUTION AND         SUPERPOSITION TECHNIQUES     Circuits for modifying the dynamic range of signals, particularly compressors and expanders for use in noise reduction compander systems, in which the plurality of characteristics are superposed such that as dominant signal components appear, hidden characteristics are revealed and become active.  The emergence of characteristics can also be described as "action substitution" in the sense that the action resulting from one, or perhaps more than one characteristic is substituted for one or more other characteristic actions that have the potential to operate in the same frequency and level regions when the level and spectral content of the input signal components change.  One particularly useful combination of superposed characteristics is a fixed band characteristic (variable attenuation throughout all or part of the frequency band) and a sliding band characteristic (variable attenuation through part of the frequency band achieved by a variable pass filter). The advantages of such characteristics are obtained, without the disadvantages normally inherent in each characteristic.  Fixed band and sliding band circuit elements are operated in various equivalent circuit topologies:  in the preferred and simplest arrangement the circuit elements are in a "stack", the output of one element acting as a reference for the other.  The elements operate in generally the same level range and at least a partial overlapping in frequency range.
Patent CA-1275533-C (CA)
Inventor: OWEN CHARLES S
IPC: A61B5/055
Filed: 1986-10-02
Granted: 1990-10-23
Abstract: Abstract A magnetic-polymer particle, useful in immunoassay techniques and various other biological/medical applications is produced by coprecipitation of transition metals in the presence of a polymer having available coordination sites. These particles are capable of forming stable aqueous suspensions and may be easily resuspended after agglomeration.
Patent CA-1309714-C (CA)
Title: Process for the preparation of (2s,3s)-3-acetoxy-5-(n, n-dimethylaminoethyl)-2-(4-methoxyphenyl)-2,3-dihydro- 1,5-benzothiazepin-4(5h)-one
Inventor: GIZUR TIBOR
IPC: C07D281/10
Filed: 1986-11-05
Granted: 1992-11-03
Abstract: PROCESS FOR THE PREPARATION OF /2S,3S/-3-ACETOXY-5--/N,N-DIMETHYLAMINOETHYL/-2-/4-METHOXYPHENYL/-2,3--DIHYDRO-1,5-BENZOTHIAZEPIN-4/5H/-ONE     A b s t r a c t The invention relates to a new process for the preparation of /2S,3S/-3-acetoxy-5-/N,N-dimethyl-aminoethyl/-2-/4-methoxyphenyl/-2,3-dihydro-1,5-benzo-thiazepin-4/5H/-one of the formula /I/       (1) and acid addition salts thereof, by a/  alkylation and acetylation of /2S,3S/-3--hydroxy-2-/4-methoxyphenyl/-2,3-dihydro-1,5-benzo-thiazepin-4/5H/-one of the formula /III/       (111) in an optional order, or b/  alkylation of 3-acetoxy-2-/4-methoxyphenyl/--2,3-dihydro-1,5-benzothiazepin-4/5H/-one of the formula /V/       (V) and if desired, conversion of the compound of formula /I/ obtained into an acid addition salt thereof,    w h i c h     c o m p r i s e s carrying out the alkylation with 2-dimethylaminûethanol mesylate hydrochloride and/or carrying out the acetylation with isopropenyl acetate.
Patent CA-1283111-C (CA)
Title: 3,4-diphenyl-n-phenyl-4,5-dihydropyrazole-1-carboxamide
Inventor: NEH HARRIBERT
IPC: A01P7/04
Filed: 1986-12-19
Granted: 1991-04-16
Abstract: ABSTRACT            Compounds of formula I                                         (I) in which X, Y and Z have various meanings, are described, as well as processes for their preparation and their use as insecticides and acaricides.
Patent CA-1282709-C (CA)
Title: Composition for oral hygiene
Inventor: AFSETH JOHN
IPC: A61K31/505
Filed: 1986-12-23
Granted: 1991-04-09
Abstract: Abstract of the disclosure A composition for oral hygiene with efficacy against dental plaque contains a mixture with synergistic effect of copper compounds and hexetidine, pre-ferably in an amount of about 0,05 to about 1,5 % by weight, calculated to the total composition.
Patent CA-1295242-C (CA)
Inventor: FRANZ HELMUT
IPC: A61K47/38
Filed: 1987-02-03
Granted: 1992-02-04
Abstract: Abstract Pharmaceutical formulations for topical administration which stabilise the .alpha.-interferon contained therein, comprise as carrier and stabiliser a mixture of 1.   a cellulose derivative, polyvinyl alcohol, polyvinylpyrrolidone, polyacrylic acid polymer or a mixture of any of these, and 2.   gelatine, which has been subjected to acid or alkaline digestion, and, in addition, an anti-adhesion agent.
Patent CA-1278074-C (CA)
Title: Electric motor-actuated load clamp with clamping force control
Inventor: OLSON JOHN E
IPC: G05D15/01
Filed: 1987-03-06
Granted: 1990-12-18
Abstract: Abstract of the Disclosure An electric motor-actuated load clamp for automatically-guided vehicles has clamp arms which are selectively opened and closed by a plurality of rotary electric motors connected to the clamp arms by ball screws.  Clamping force is accurately controlled by regulation of current to the electric motors, any of a number of different predetermined clamping forces being selectively obtainable.  During clamping of a load, the electric motors are energized only a small fraction of the time according to a time-sequenced clamping and reclamping procedure, clamping force being otherwise maintained by a one-way brake.  Further control features ensure against inaccuracy and overclamping due to current in-rush, and against malfunctions which could cause safety hazards.
Patent CA-1316358-C (CA)
Title: Beverage cooler having a cold plate and plastic bin
Inventor: BULL RONALD E
IPC: F25D3/02
Filed: 1987-03-23
Granted: 1993-04-20
Abstract: ABSTRACT OF THE DISCLOSURE         A beverage cooler has a cold plate and a plastic ice cube  bin  secured  to  the  cold  plate  by an  adaptor which  is permanently  adjoined  to  plastic  walls  of  the  hopper.   The adaptor has a tongue, a plate  arm   which fits into a rabbet on the  cold  plate,  a  foam  flange  which  extends  out  into  foam insulation and a plate flange fastened to the cold plate; the plastic hopper walls have a foot molded into the plate flange and rivets molded into the tongue.   A method of manufacturing the plastic ice bin has the plastic walls being molded onto the adaptor,  preferably  by rotomolding using polyethylene as the material.    A  beverage  cooler  construction  has  a  rotomolded exterior shell fastened to the plastic ice hopper by a spacer and top molding and has insulated beverage outlet lines which exit the shell through an offset under the molding rim.   The beverage  cooler  has  a  structure  which  meets  all  sanitation codes, which is reliable, which has a long expected life, which is sanitary, and which can be manufactured by the rotomolding process.
Patent CA-1296709-C (CA)
Title: Heat exchanger
Inventor: STEWART PETER J
IPC: F28D7/16
Filed: 1987-03-24
Granted: 1992-03-03
Abstract: ABSTRACT     A heat exchanger for heating fluid particulate material comprising a heating chamber,  heating means associated with  the  heating  chamber,  a hopper mounted above  the heating  chamber,  a delivery chamber located below the heating  chamber,  a  set  of  flow  passageways  extending through  the  heating  chamber  between  the  hopper  and delivery chamber, said delivery chamber having an outlet at its lower portion.
Patent CA-1297529-C (CA)
Inventor: BRECHT WILLIAM B
IPC: H01M50/193
Filed: 1987-04-07
Granted: 1992-03-17
Abstract: Abstract of the Disclosure A  lead-acid  battery includes  a  case having an apertured cover with the aperture being  for  passage  of  a  terminal post therethrough  for  electrically  connecting electrodes within the battery case to apparatus outside the battery, with  the terminal post extending  through the  aperture.  A rubber layer, devoid of rubber fillers and plasticizers,  circumferentially surrounds the post at  the aperture.  A rubber-bonding epoxy polymer is between the rubber layer and the aperture through the case.   A method of securely  sealing  a  battery  post  within  an  aperture passing through a lead-acid battery case includes the steps of applying a rubber undercoat  which  is  devoid  of fillers and plasticizers annularly about the battery post portion which is  closest to the aperture when  the post is secured with the aperture, positioning the post within and annularly spaced  from the  aperture with the annular  undercoat  proximate  to  the aperture and filling space within the aperture between the annular undercoat and the battery case with  a rubber bonding epoxy material thereby bonding to the annular undercoat and to the battery case.
Patent CA-1292673-C (CA)
Inventor: YEH TSO-PING
IPC: F17C13/00
Filed: 1987-04-15
Granted: 1991-12-03
Abstract: Abstract PASSIVE PROPELLANT MANAGEMENT SYSTEM     A  passive  propellant  management  system  for  a spacecraft liquid propellant tank (1) comprises several preferably  V-shaped  channels  (2)  which  communicate liquid propellant from regions within the tank (1) to an outlet port (8), which expels liquid propellant but not pressurant gas.  A liquid/bubble chamber assembly (9) couples the channels (2) with the outlet port (8). The channels (2) comprise relatively open portions (11) and relatively closed portions (10).  In the relatively open portions  (11),  liquid is retained in a gap (12) between open ends of the V channels (2) and the inner wall  of  the  tank  (1).   In  the  relatively  closed portions (10), a screen, mesh or  perforated plate (14) covers the open end of the V channels (2), intermediate the V channels (2) and the inner wall of the tank (l). The  placement  of  the  relatively  open  and  closed portions   (11,   10,   respectively)   is   intentionally preselected  based  upon  mission  requirements.   Where pressurant gas ullage is expected to be present, e.g., during-periods of high-g, relatively open portions (11) are used.  Where liquid propellant is expected to be present,  e.g.,  during  periods  of  relatively  low  g, relatively  closed  portions   (10)   are   used.    The liquid/bubble chamber assembly  (9)  comprises a liquid trap   (27)   and  bubble  trap   (28),   which  operate synergistically with each other and with the channels (2) to provide optimum liquid flow during all phases of the spacecraft mission.
Patent CA-1326072-C (CA)
Inventor: JOVE STEPHEN A
IPC: G01R33/09
Filed: 1987-04-15
Granted: 1994-01-11
Abstract: ABSTRACT OF THE INVENTION          VOLTAGE AMPLIFIER FOR CONSTANT VOLTAGE BIASING AND AMPLIFYING SIGNALS FROM A MR SENSOR      An amplifier for voltage biasing and amplifying the signals produced by a magnetic sensor is provided.          Electrically, the resistance of the sensor is disposed between the bases of a differential pair comprising the input stage of the amplifier.  Constant bias voltage for the sensor is provided independently of sensor resistance.  DC feedback to the input stage balances current flow in both paths of the differential input stage to correct for DC offset arising in the output from input stage emitter resistor.  The amplified signal, representing ?Rh/Rh, is sensed as a voltage across the magnetoresistive sensor, where .DELTA.RH    the change in steady-state resistance, Rh, of the sensor.