baber/WOPTO huggingface dataset:
Patent CA-2154357-A1 (CA)
Title: Microstructures and single-mask, single-crystal process for fabrication thereof
Inventor: SHAW KEVIN A
IPC: H01L29/82
Filed: 1993-12-03
Abstract: The invention provides a single mask, low temperature reactive ion etching process for fabricating high aspect ratio, released single crystal microelectromechanical structures independent of crystal orientation.  A dielectric mask (12) on a single-crystal substrate (154) is patterned to define isolating trenches. A protective conformal layer (28) is applied to the resultant structure. The conformal layer (28) on the floor of the trenches is removed and a second etch deepens the trench to expose the mesa walls which are removed during the release step by isotropic etching. A metal layer (44) is formed on the resultant structure providing opposed plates (156) and (158) of a capacitor. The cantilever beam (52) with the supporting end wall (152) extends the grid-like structure (150) into the protection of the deepened isolation trenches (54). A membrane can be added to the released structures to increase their weight for use in accelerometers, and polished for use as movable mirrors.
Patent CA-2154530-A1 (CA)
Title: Mobile communication device having an output power sensor succeeding a transmission filter
Inventor: HORII HIROYUKI
IPC: H03G5/16
Filed: 1995-07-24
Abstract: In a mobile communication device, a power amplifier amplifies the power of a signal to be transmitted. A transmitter filter limits the frequency band of the amplified signal to a predetermined frequency band for transmission. The signal limited in frequency band is transmitted via an antenna. Output power control circuitry controls the output power of the signal to be transmitted and has an output power sensor and an automatic power control circuit. The output power sensor succeeds the transmitter filter in the direction of flow of the signal to be transmitted, and senses the output power of the signal. The automatic power control circuit controls the gain of the power amplifier such that the output power sensed by the output power sensor coincides with a preselected reference value.
Patent CA-2158180-A1 (CA)
Inventor: BARDHAN BIBHUTI BHUSAN
IPC: B60J5/10
Filed: 1995-09-18
Abstract: In a van or such other vehicle having a rear door, the latter opens either vertically up or down as a whole or with one panel vertically up and another panel vertically down, or, the door may open as a whole swinging out horizontally on either side or with two panels each opening horizontally on each one's own side.
Patent CA-2162554-A1 (CA)
Inventor: SAMSON GENE
IPC: A61M25/00
Filed: 1995-11-09
Abstract: This invention is a surgical device. In particular, it is a catheter suitable for accessing a tissue target within the body, typically a target which is accessible through the vascular system. Central to the invention is the use of a stiffener ribbon, typically metallic, wound within the catheter body in such a way as to create a catheter having controllable stiffness. The stiffener ribbon is adhesively bonded to a flexible outer tubing member so to produce a thin wall catheter section which is exceptionally flexible but highly kink resistant. The catheter sections made according to this invention may be used in conjunction with other catheter sections either using the concepts shown herein or made in other ways. Because of the effective strength and ability to retain a generally kink-free form, these catheters may be effectively used in sizes which are quite fine, e.g., 0.015'' to 0.020'' in diameter, and usable within typical vascular catheters. <IMAGE>
Patent CA-2163025-A1 (CA)
Inventor: CHU MICHAEL S H
IPC: A61B10/02
Filed: 1994-05-17
Abstract: The invention features a medical instrument for collecting multiple biopsy specimens including a long shaft having proximal and distal ends; a biopsy assembly located at the distal end of the long shaft defining an exposed biopsy space for receiving tissue to be severed and an enclosed storage space located proximally of the biopsy space and axially moveable with respect to the shaft for storing severed tissue; an actuator located at the proximal end of the shaft; and a force-transmitting member associated with the shaft, extending from the actuator to the biopsy assembly. Driving the actuator severs tissue which is located in the biopsy space and thereafter stored in the storage space. Multiple specimens may be taken sequentially and stored in the assembly.
Patent CA-2163137-A1 (CA)
Title: Method and apparatus for controlling downhole rotary pump used in production of oil wells
Inventor: WOLODKO BEN B
IPC: E21B43/12
Filed: 1995-11-17
Abstract: A downhole rotary pump driven by a polished rod and a string of sucker rods from the earth's surface by a variable or fixed frequency, three phase electric motor, is controlled by measurements of power consumed by the electric motor and by measurements of the rotary speed of the polished rod, the combinations of such measurements being indicative of the torque exerted on the polished rod. Determinations of such torque being either within or outside of predetermined upper and lower torque limits are used to either maintain the rotary speed of the downhole pump, or to vary the rotary speed of the downhole pump, or alternatively, to completely shutdown the downhole pump. Power generated by the motor is monitored and the measured value of power may also be used to terminate motor operation when a low power limit is exceeded.
Patent CA-2163294-A1 (CA)
Title: Process and apparatus for testing a multi-trip bottle for contamination
Inventor: PIRANI PETER
IPC: G01N21/90
Filed: 1995-11-20
Abstract: To test a bottle (1) for contamination, the bottom of the bottle is laterally illuminated with a measuring light beam (7) from a source (2).  This measuring light beam is deflected, as if in a waveguide, in the ring of residual liquids (3) at the bottom of the bottle.  Light (8) reemerging from the residual liquid is imaged on a detector (5) by an imaging lens (4).  The detector measures the spectral composition of the deflected light (8) and compares this with theoretical values which should be yielded by the liquid with which the bottle was last filled.  If deviations from the theoretical values are excessive, the bottle is rejected.  The process described provides a simple way of determining whether a multi-trip bottle has contained an extraneous liquid.
Patent CA-2166140-A1 (CA)
Title: Speech pitch lag coding apparatus and method
Inventor: SERIZAWA MASAHIRO
IPC: G10L25/90
Filed: 1995-12-27
Abstract: A pitch lag is extracted for each of a predetermined number of sub-frames. A predicted pitch lag for a pertinent sub-frame in the predetermined number of sub-frames is calculated on the basis of at least two pitch lags extracted for sub-frames other than the pertinent sub-frame or at least one pitch lag extracted for sub-frame other than the pertinent sub-frame and the preceding sub-frame by one sub-frame. A difference between the predicted pitch lag and the extracted pitch lag is then coded. Thus, an input speech signal pitch lag is coded for each sub-frame having a predetermined length.
Patent CA-2166181-A1 (CA)
Title: Apparatus for Use in Sorting Granular Materials
Inventor: ROMAN ROBERT MERLIN
IPC: B07B13/16
Filed: 1995-12-27
Abstract: An apparatus for use in sorting granular materials which includes a bin having an outlet.   A conveyor is disposed beneath the outlet of the bin.  A pin is provided having a first end and a second end.  The first end is affixed to the conveyor.  The second end extends into the outlet of the bin. A motor is used to vibrate the conveyor.  The pin vibrates in the outlet of the bin as the conveyor vibrates,  thereby promoting a flow of granular material from the bin onto the conveyor in direct proportion to the rate of vibration of the conveyor.
Patent CA-2167946-A1 (CA)
Title: Method for the use of enzymes in processing and bleaching of paper pulp, and apparatus for the use thereof
Inventor: TOLAN JEFFREY
IPC: D21C9/02
Filed: 1992-05-07
Abstract: A method and apparatus for treating wood pulp that includes incompletely washed brownstock, in which the brownstock is treated at a pH range of approximately 7.0 to 9.0 with a hemicellulase enzyme preparation that has a pH optimum below 6Ø          Also, a method and apparatus for treating wood pulp containing incompletely washed brownstock in which the brownstock is treated at a pH range of approximately 6.0 to 9.0 with a hemicellulase enzyme preparation that has a pH optimum below 6.0 and that has a low cellulase content such that not more than about 10,000 FPU are added per ton of pulp.
Patent CA-2170345-A1 (CA)
Title: Optical seeking method and apparatus
Inventor: LEWIS DAVID EARL
IPC: G11B7/09
Filed: 1996-02-26
Abstract: There is disclosed a method for moving an optical head from an initial track (10) to a target track (11) on a storage medium (1). The total number of tracks (3) to be crossed is determined, and the optical head is moved toward the target track (11). A reflectivity level of light from the storage medium (1) is measured, and a tracking error signal is derived from the reflectivity level. The tracking error signal has both true and false indicators of track crossings. A data indicator signal is derived from the reflectivity level, having indicator points corresponding to the false indicators of track crossings. A track count number is incremented for each true indicator of a track crossing, and the optical head is stopped when the track count number equals the total number of tracks (3) to be crossed. Another method is disclosed whereby a track count signal is generated from the tracking error signal and the data indicator signal. The track count signal indicates track crossings corresponding to the true track crossing indicators in the tracking error signal. An apparatus is disclosed comprising a sensor (14) for measuring the reflectivity level from a storage medium (1), a tracking error signal generator (17) for generating a tracking error signal, a preamplifier (15) for generating a data signal, a track crossing signal generator (18) responsive to the tracking error signal, and a track/hold selector (16) responsive to the data signal to direct the track crossing signal generator (18) to generate a track crossing signal without the false track crossing indicators from the tracking error signal. A second apparatus is disclosed comprising a sensor (14) for measuring the reflectivity level from a storage medium (1), a preamplifier (15) for generating a data signal, a tracking error signal generator (32) responsive to the reflectivity level for deriving a tracking error signal, a track/hold selector (31) to direct the tracking error signal generator (32) to generate a signal of constant amplitude (43) for a predetermined period of time based on the data signal, and a track crossing signal generator (33) responsive to the tracking error signal for deriving a track crossing signal indicating the crossing of an information track by the optical head.
Patent CA-2170443-A1 (CA)
Inventor: LIGTENBERG HENDRIKUS CORNELIS
IPC: A61F2/82
Filed: 1996-02-27
Abstract: The invention relates to a catheter comprising a tube-like basic body with a distal and a proximal end and a balloon member arranged at the distal end. A light conductor extends from the proximal to the distal end which has close to the proximal end a light-absorbing end-section and close to the distal end a light-emitting end-section positioned inside the balloon member. The catheter comprises furthermore a light sensor, with a light-sensitive element situated inside the balloon member and a conductor conducting a light-dependent signal to the proximal end.
Patent CA-2173436-A1 (CA)
Inventor: BACON DENNIS RAY
IPC: C11D3/22
Filed: 1994-10-07
Abstract: Procédés de préparation de complexes de cyclodextrine consistant à préparer le complexe cyclodextrine/agent actif par voie mécanique dans des conditions réactionnelles concentrées, et en présence d'une quantité de solvant égale ou inférieure à 40 % environ, ledit solvant étant par exemple de l'eau, afin d'obtenir une granulométrie finale complexe inférieure à 12 microns environ, et, de préférence sans soumettre le mélange réactionnel complexe ainsi obtenu à aucune opération supplémentaire, à incorporer ce mélange, de préférence à une température comprise entre 60 et 95  DEG C environ, à au moins un produit de conditionnement de tissus, de préférence un agent actif cationique de conditonnement de tissus, de préférence sous forme liquide (fondue), puis à traiter ledit mélange par voie mécanique de manière à ramener la granulométrie globale complexe à une valeur inférieure à 200 microns environ. Le mélange complexe/produit de conditonnement de tissus ainsi obtenu est utilisé dans la préparation, par exemple, d'un article tel qu'une feuille d'adoucissant textile utilisable dans un sèche-linge. De préférence, le mélange du complexe et du produit adoucissant pour tissus renferme une faible quantité d'un tensioactif anionique destiné à réduire les dépôts, par exemple, de cyclodextrine inaltérée sur le matériel utilisé dans la préparation de l'article (feuille) et/ou de la composition de conditionnement de tissus.
Patent CA-2173479-A1 (CA)
Inventor: BIAGIOTTI GUGLIELMO
IPC: B26D3/16
Filed: 1994-10-04
Abstract: A machine for producing tubes by winding into a spiral strips of ribbon-shaped material (N) on a spindle (1), comprises a winding unit (5) which winds into a spiral two or more overlapping and staggered strips of ribbon-shaped material on the said spindle (1) and causes the tube (T) formed from the said material to advance continuously, and a cutting unit (33) fitted with rotating tube-cutting means (63, 65) and provided with a reciprocating traveling motion along the direction of advance of the tube to cut the said tube into sections of predetermined length during the advance of the tube. The said cutting unit (33) is associated with members (97, 101, 105, 107) for driving the rotating cutting means (63, 65), which impart to the said rotating cutting means (63, 65) a rotary motion derived from the reciprocating traversing motion of the said cutting unit (33).
Patent CA-2173564-A1 (CA)
Inventor: TALLONE LUIGI
IPC: G01N21/45
Filed: 1996-04-04
Abstract: A method and device for calculating refractive index for a wafer of vitreous material.  A light beam is transmitted to a wafer at different angles of incidence, to produce fluctuations in the transmittance of the beam by the wafer.  The transmittance of the wafer is measured as the angle of incidence varies and the angular positions of transmittance maxima and minima are determined with respect to  a  maximum  or  minimum  corresponding  to  a  normal incidence.   The refractive index is obtained from these positions and from the number of maxima and minima in various angles of incidence.
Patent CA-2173821-A1 (CA)
Title: Method for determining pharmacodynamic parameters and designing a dosing regimen for a drug
Inventor: NATARAJAN CHANDRA
IPC: A61K9/00
Filed: 1996-04-10
Abstract: Method for determining a particular characteristic value of an effect compartment, such as the exit rate constant, after administration of a drug to a central compartment coupled to the effect compartment.  Drug concentrations in the effect compartment are ascertained as a function of the exit rate constant, and a measured effect of the drug is obtained.  A hysteresis loop between the drug concentrations in the effect compartment and the measured effect is graphically formed, and the hysteresis loop is collapsed by varying the exit rate constant of the effect compartment.  A pharmacodynamic model which fits the curve of the collapsed hysteresis loop is selected, and a predicted effect is obtained in accordance with the selected pharmacodynamic model and the drug concentrations in the effect compartment.  An error between the predicted effect and the measured effect is calculated, and the exit rate constant of the effect compartment is then adjusted until the calculated error between the predicted effect and the measured effect is minimized, thus obtaining the exit rate constant of the effect compartment.  A dosing regimen for the drug is then designed in accordance with the exit rate constant at which the calculated error is minimized.
Patent CA-2174094-A1 (CA)
Title: Process for manufacturing cellulose moulded bodies
Inventor: KALT WOLFRAM
IPC: D01D4/02
Filed: 1995-06-26
Abstract: The invention is concerned with a process for the production of cellulose moulded bodies wherein a suspension of cellulose in an aqueous solution of a tertiary amine-oxide is transformed into a mouldable solution, said solution being extruded by means of a forming tool and conducted into a precipitation bath. The process is characterized in that at least part of the materials in devices and pipes for the transportation and processing of the solution, which material is in contact with the mouldable solution contains at a minimum of 90% up to a depth of at least 0,5 .mu.m, preferably more than 1 .mu.m, at least one element of the group consisting of titanium, zirconium, chromium and nickel in elementary form and/or in the form of compounds provided that the remaining of the material does not contain any of the elements of the group consisting of copper, molybdenum, tungsten or cobalt. By means of the use of certain elements and compounds according to the invention, it is possible to control the occurrence and the extent of exothermal degradation reactions in the cellulose solution.
Patent CA-2174105-A1 (CA)
Title: Tricyclic carbamate compounds useful for inhibition of g-protein function and for treatment of proliferative diseases
Inventor: BISHOP W ROBERT
IPC: A61K31/496
Filed: 1994-10-12
Abstract: A method of inhibiting Ras function and therefore inhibiting cellular growth is disclosed.  The method comprises the administration of a compound of formula (1.0).  Also disclosed are novel compounds  of formulae (1.1, 1.2 and 1.3).  Also disclosed are processes for making 3-substituted compounds of formulae (1.1, 1.2 and 1.3).  Further disclosed are novel compounds  which are intermediates in the processes for making the 3-substituted compounds  of formulae (1.1, 1.2 and 1.3).
Patent CA-2174946-A1 (CA)
Title: Real time suspended particle monitor
Inventor: REINTJES JOHN F
IPC: G01N15/02
Filed: 1994-10-31
Abstract: A method and apparatus for real-time monitoring of particulates in a fluid (200). The fluid (200) is illuminated by illuminating system (10, 16), and an image (202, 204, 212, 214) formed of the interior of the fluid (200). The image (202, 204, 212, 214) is then detected by a detecting system (20, 72, 74), and processed to determine the size, shape, etc. of particulates within the fluid (200).
Patent CA-2175034-A1 (CA)
Title: Liquefied gas supply system
Inventor: MATSUMURA MASAO
IPC: F17C9/02
Filed: 1996-04-25
Abstract: A self-contained liquefied gas supply system has a tank for storing a liquefied gas, a primary pump for delivering the liquefied gas from the tank, a secondary pump for pressurizing the liquefied gas delivered from the primary pump, a vaporizer for vaporizing the liquefied gas discharged from the secondary pump into a vaporized gas, an expander for actuating the secondary pump with the vaporized gas produced by the vaporizer, and a back-pressure line connected to an outlet of the expander. A bypass pipe is connected between the primary pump and the vaporizer in bypassing relation to the secondary pump for supplying the liquefied gas from the primary pump to the vaporizer. A joint line is connected between the back-pressure line and a substantially atmospheric pressure line, the joint line having a first flow regulating valve for regulating a rate of flow of a gas from the back-pressure line to the substantially atmospheric pressure line. A bypass line is connected between the vaporizer and the back-pressure line in bypassing relation to the expander, the bypass line having a second flow regulating mechanism for regulating a rate of flow of the vaporized gas from the vaporizer to the back-pressure line. For starting the secondary pump, the liquefied gas is delivered from the primary pump through the bypass pipe to the vaporizer, which produces a vaporized gas supplied to the expander.
Patent CA-2175688-A1 (CA)
Inventor: UMEHARA KAZUYUKI
IPC: E04B2/74
Filed: 1995-09-04
Abstract: There is provided a partition wall which is characterized in that studs are secured to upper and lower runners fitted to a skeleton in a zigzag arrangement or as common studs; that basic face materials are fitted to the skeleton through sound insulation materials so that the face materials are arranged, in parallel, on both outer sides of the studs, while the studs are internally positioned; and that a hard gypsum sheet comprising fibers dispersed in the gypsum core thereof is arranged on the corresponding outer side of each basic face material. This partition wall is particularly suitable for use as a dry party wall, has satisfactory characteristic properties such as fire protecting properties, sound insulation properties, deformation-follow-up properties, out-of-plane flexural rigidity and hardness. The wall comprises gypsum based construction materials as the top end boards and thus the weight and wall thickness thereof can be reduced.
Patent CA-2177651-A1 (CA)
Title: Microbiological process for the preparation of heteroaromatic carboxylic acids using microorganisms of the genus alcaligenes
Inventor: KIENER ANDREAS
IPC: C12R1/05
Filed: 1996-05-29
Abstract: A microbiological process for the preparation of heteroaromatic carboxylic acids or physiologically tolerated salts thereof, of the general formulae:   in which R1 and R2 are identical or different and denote a hydrogen or halogen atom and X denotes a nitrogen atom or -CH-, is described herein. The conversion is carried out in such a way that heteroaromatic nitriles of the general formulae:   in which R1, R2 and X are as previously defined, are converted as substrate, using 2-cyanopyridine-utilizing microorganisms of the genus Alcaligenes which have been cultured before the biotransformation in the presence of a dicarboxylic acid, tricarboxylic acid or a carbohydrate, into the corresponding carboxylic acid, and the latter is converted where appropriate into a physiologically tolerated salt thereof.
Patent CA-2178376-A1 (CA)
Title: Video data retrieval method for use in video server environments that use striped disks
Inventor: OZDEN BANU
IPC: H04N21/231
Filed: 1996-06-06
Abstract: A method for retrieving video data from a video server, the video data having been stored on a plurality of disks based on a disk striping technique. In accordance with one illustrative embodiment, the method comprises the steps of retrieving a predetermined number of bits from the plurality of disks in the video server, and storing that predetermined number of bits in a buffer memory, wherein the number of bits retrieved and stored is based on the number of disks and on the capacity of the buffer memory. These steps, which together may illustratively constitute one round of the video retrieval process, may be repeated until the entire video has been retrieved and, for example, transmitted to the intended recipient(s) at a required transmission rate.