baber/WOPTO huggingface dataset:
Patent CA-2016037-A1 (CA)
Inventor: MUSIL EDWARD C
IPC: F16G3/02
Filed: 1990-05-03
Abstract: ABSTRACT OF THE DISCLOSURE          A wire belt fastener is formed from a piece of wire to have a wire body having a pair of arms joined by a U-shaped hinge pin section.  The ends of the wire are flattened to form wide areas having grooves to receive the head and the bent ends of a staple.  The fasteners are aligned in a juxtaposed array by a connector wire or rod extending normal to the arms and spanning across a series of belt fasteners to space them evenly to receive interdigitated hinge loops of another array of belt fasteners. A belt stop comprising a projecting piece of wire is secured to an inner surface of one arm of the wire belt fastener to be abutted by the cut belt end to limit its insertion into the gap between the arms of the wire belt fastener.  To reduce the lateral width of the belt fasteners and to place more metal in the splice, the wire cross-section at the hinge loop is substantially oblong with flat faces of adjacent, intermeshed fasteners being side by side.  The wire body is oblong in shape except for the flattened ends without having to cut away metal from the wire body and scraping the severed metal.          When bending the wire into a U-shape, the interior hemispherical surface becomes wider than the outer hemispherical surface at the hinge loop.
Patent CA-2016245-A1 (CA)
Title: Electronic brake monitoring system and method
Inventor: HERMAN MARK N
IPC: B60Q1/44
Filed: 1990-05-08
Abstract: ABSTRACT         A brake monitoring system for a motorized vehicle having fluid brakes including a pressurized fluid chamber having an engaging means which exerts pressure on a braking member that is connected to the engaging means,  whereby the brake shoes of the braking member are placed in contact with a brake drum causing the motorized vehicle to brake. A measurement is made of the fluid pressure exerted by the fluid chamber on the engaging means causing the engaging means to be extended toward the braking member.  A measure-ment is also made of the distance the engaging member is extended from the fluid chamber toward the braking member. A  determination is made from the measured fluid pressure and measured engaging means distance as to whether the brakes are out of adjustment at any given fluid pressure and engaging means distance.
Patent CA-2016793-A1 (CA)
Inventor: MIURA KATSUNORI
IPC: H04N5/922
Filed: 1990-05-15
Abstract: A FM signal is applied to a variable gain amplifier (5) of an FM demodulator.  The gain of variable gain amplifier (5) is varied in response to a gain control signal.  The output signal of variable gain amplifier (5) is applied to an FM demodulating circuit (7) constituting a PLL circuit via a BPF (6). The output signal of BPF (6) is also applied to a synchronous detector (12) via a 90° fixed phase shifter (11).  The output signal of a VCO (10) included in the PLL circuit is applied to synchronous detector (12) as the reference signal.  The synchronous detector (12) is responsive to the reference signal for synchronous detecting the output signal of 90° fixed phase shifter (11).  The output signal of synchronous detector (12) is applied to variable gain amplifier (5) via a LPF (13) as the gain control signal.  Thus, variable gain amplifier (5) is responsive to the output signal of synchronous detector (12) for making the amplitude of the FM audio signal included in the FM signal constant.
Patent CA-2019516-A1 (CA)
Inventor: FRENCH EDDIE C
IPC: C09K8/54
Filed: 1990-06-21
Abstract: A method of inhibiting corrosion in an oil well comprises introducing into the well a pourable emulsion comprising a.   50-95% of a discontinuous aqueous phase (such as ordinary water); and b.   5-50% of a continuous oil phase (such as kerosene or similar hydrocarbon) containing a corrosion inhibiting compound (such as an imidazoline).     This method results in more consistent corrosion protection, even if longer treatment intervals are used.
Patent CA-2020006-A1 (CA)
Title: Azole derivatives and anti-ulcerative composition containing same
Inventor: KATANO KIYOAKI
IPC: C07D513/04
Filed: 1990-06-27
Abstract: ABSTRACT OF THE DISCLOSURE Compounds of the general formula (I):                  (I) and pharmaceutically acceptable salts thereof, in which A, B, C and D each represent -CH= or -N=, with the proviso that at least one of them is -N=;        X represents -NH-, -O- or -S-; Y  represents  -(CH2)p- wherein p  is an  integer from 0  to  4,  -C(CH3)2-,  -CH2CH=CH-,  -CH2CO-,  -CF2-  or -CH2COCH2-;        R1  represents  a  hydrogen  atom,  a  C1-4  alkyl group, a halogen atom or a C1-4 alkoxy group;        R2 represents a hydrogen atom, a hydroxyl group, a saturated or unsaturated C1-6 alkyl group, a C1-6 alkoxy group, a carboxyl group, a saturated or unsaturated C1-12 alkoxycarbonyl group which may be optionally substituted, a cycloalkoxycarbonyl group, a saturated or unsaturated five- or six-membered heterocyclic group containing at least  one  nitrogen  atom  optionally  with  one  or  more nitrogen and/or oxygen atoms, which may   be optionally condensed and/or substituted, -CONR3R4, -NR3R4, -OCOR3 or -NHCONHR3 wherein R3 and R4, which may be the same or different,  represent  a  C1-6  alkyl  group which may  be optionally substituted or a cycloalkyl group, and m and n each represent an integer from 0 to 2.
Patent CA-2020643-A1 (CA)
Title: Corrosion free phosphoric acid fuel cell
Inventor: WRIGHT MAYNARD K
IPC: H01M8/04
Filed: 1990-07-06
Abstract: ABSTRACT OF THE DISCLOSURE A phosphoric  acid fuel cell with an electrolyte fuel system which supplies electrolyte via a wick disposed adjacent a cathode to an absorbent matrix which transports the electrolyte to portions  of the  cathode and  an anode which  overlaps  the  cathode  on  all  sides  to  prevent corrosion within the cell.
Patent CA-2021052-A1 (CA)
Inventor: ANGER CLIFFORD D
IPC: H04N5/359
Filed: 1990-07-12
Abstract: The  Charge  Coupled  Device  ("CCD"),  which  is  an integrated circuit array sensor in "chip" form, of a pushbroom spectrographic imager is operated to achieve fast dumping of unwanted rows of charges.  The chip is provided with antiblooming structure in the image area and the first row of the storage area.  The rows of charges are divided into groups of several rows.  The groups of interest (i.e. the active groups) and those that are not wanted (i.e. the discard groups) are so designated.          The rows in each group are summed in the antiblooming structure of the storage area.  The active summed rows are sequentially transferred  by  the  chip's  transport  register  to  an  output amplifier,  wherein the  individual  charges  are read out and digitized to yield signal values for collection.   The discard summed rows are cleared without digitization.
Patent CA-2021155-A1 (CA)
IPC: G11B7/085
Filed: 1990-07-13
Abstract: An optical disk recording and reproducing apparatus in which during coarse access, an adjustable target speed is obtained using a speed offset value stored in a speed offset memory.  The speed offset value being determined between a plurality  of  reference  velocities  and  a  plurality  of adjustable offset velocity values.  The system also performs fine access within a defined distance from the optical head to the designated track upon completion of the coarse access mode.  The speed offset values are continually updated by to improve the accuracy of the coarse access operation saving overall access time.
Patent CA-2021578-A1 (CA)
Title: Mannich condensates of a substituted phenol and an alkylamine containing internal alkoxy groups
Inventor: SPERANZA GEORGE P
IPC: C07C217/48
Filed: 1990-07-19
Abstract: MANNICH CONDENSATES OF A SUBSTITUTED  PHENOL AND AN ALKYLAMINE CONTAINING       INTERNAL ALKOXY GROUPS   (Docket No. 80,330 -F) Abstract of the Invention Products useful as surfactants, corrosion inhibi-tors, water repellent agents, paint adhesion promoters, etc. are prepared by reacting formaldehyde and a phenol with an alkyl amine containing internal propoxy or propoxy/ethoxy groups to thereby provide a corres-ponding Mannich condensate having a desired utility.          The Mannich condensates may also be reacted with an alkylene oxide feed stock containing ethylene oxide or propylene oxide or 1,2-butylene oxide or a mixture thereof under conventional alkoxylation conditions to thereby provide a corresponding alkoxylated Mannich condensate having a utility which may be the same as or different from the utility of the initial Mannich condensate.
Patent CA-2022065-A1 (CA)
Inventor: GARG DIWAKAR
IPC: C23C16/30
Filed: 1990-07-26
Abstract: ABSTRACT OF THE DISCLOSURE An improved highly erosive and abrasive wear resistant multi-layered coating system on a substrate which provides protection against impact of large particles is disclosed comprising a plurality of composite layers. In each of the composite layers the first layer closest to the substrate comprises tungsten of sufficient thickness to confer substantial erosion and abrasion wear resistance characteristics to the coating system and a second layer deposited on the first layer comprises a mixture of tungsten and tungsten carbide and the tungsten carbide comprises W2C, W3C, or a mixture of both. Because the resulting coating system has enhanced high cycle fatigue strength over the substrate the coating system is especially useful on such structures as turbine blades and similar articles of manufacture where such high stress cycles occur during normal operation. Also disclosed is the method for preparing such improved composite coating systems.
Patent CA-2024584-A1 (CA)
Title: Wheeled transfer device for moving an aircraft
Inventor: SINKKONEN MATTI
IPC: B64F1/10
Filed: 1990-09-04
Abstract: (57) Abstract The object of the invention is a transfer device equipped with support wheels  (4)  to move an aircraft  (1)  or other device equipped with double wheels (6) over a base (2), which transfer device includes at least one so-called self-wedging friction roller (3) which grips the wheels (6) of the device to be moved beneath  their  axles,  and  two  support  wheels  to  drive  at essentially  the  same  peripheral  velocity  in  the  opposite direction,  and  in which transfer device these  two driving support wheels (4) are located close to the line of the friction roller (3)  The transfer device in accordance with the invention includes a pushing section  (12)  with its own wheels,  power source  drive  and steering devices,  and that the  friction rollers and driving support wheels are located in a transfer unit (9), which is connected to the pushing section (12) by means of a boom (11), which is connected to the transfer unit (9) by means of a vertical point (10) and to the pushing unit (11) by means of a horizontal joint (13).
Patent CA-2024658-A1 (CA)
IPC: G02F1/15
Filed: 1990-09-05
Abstract: An electrochromic window includes a first transparent substrate, an electroconductive film electrode, a transparent electrochromic film in contact with said electroconductive film, an ion-conductive layer in contact with said electrochromic film, a counter electrode in contact with said ion-conductive layer, and a second transparent substrate overlaying the counter electrode.  A preferred copolymer electrolyte is a reaction product of a sulfonic acid monomer such as acrylamidomethylpropane sulfonic acid or ethylene sulfonic acid, and a hydrophilic acrylate comonomer such that the copolymer is curable with ultraviolet radiation.  The optimum moisture content of the ion-conducting polymer sheet is maintained by means of a moisture vapor barrier surrounding the perimeter of the cell.  A plurality of bus bars extend across the electroconductive film electrode to distribute electrical current throughout the film electrode and provide a more uniform current density between the film electrode and the counter electrode.
Patent CA-2026043-A1 (CA)
Inventor: FERNANDEZ JOSEPH
IPC: D21H19/54
Filed: 1990-09-24
Abstract: Rapidly immobilizing paper coating compositions may be prepared by formulating an aqueous coating composition comprising a cationic starch, pigment and sufficient base to obtain a pH above the pK of the starch derivative so that the starch is no longer cationic; coating the paper substrate; and lowering the pH of the coating such that the starch becomes cationic.
Patent CA-2026617-A1 (CA)
Title: Method and apparatus for measuring multiple optical properties of biological specimens
Inventor: KAMENTSKY LOUIS A
IPC: G06K9/00
Filed: 1990-10-01
Abstract: The invention relates to an apparatus and methods for generating multiparameter optical data that characterize a population of cells. The invention includes the steps of scanning the cell population with a beam to produce sets of digital data samples, each sample set of digital data representing multiparameter optical interactions from a specific location within the cell population; storing the digital data, e.g., in a computer memory; locating a cell within the population, e.g., by comparing the digital data to a preselected threshold value; defining a neighborhood around the digital data representing the located cell; estimating a background level for the neighborhood based upon digital data corresponding to locations outside the neighborhood; and correcting each of the samples corresponding to the neighborhood with the estimated neighborhood background level to generate the optical data. The invention further relates to specific methods of background correction and data calibration as well as specific sampling features to enable precise estimates of multiple cellular constituents or other cell properties at high rates of speed.
Patent CA-2030126-A1 (CA)
Inventor: SCHAPIRA JOSEPH
IPC: C23C22/18
Filed: 1990-11-16
Abstract: Process for the chemical conversion of metallic substrates comprising the use, at the moment of the phosphatization step proper, of a zinc conversion bath comprising phosphate ions and nitrate ions as well as ferrous or ferric ions and from about 21 to about 100 g/l of at least one organic chelating agent.
Patent CA-2032667-A1 (CA)
Title: Process of producing 1,3,3-trimethyl-5-oxo-cyclohexane-carbonitrile
Inventor: HUTHMACHER KLAUS
IPC: C07C253/10
Filed: 1990-12-19
Abstract: The addition of hydrogen cyanide to isophorone for the production of 1,3,3-trimethyl-5-oxo-carbonitrile is successful when using lithium hydroxide in an amount from 0.005 to 5 mole % at 100 to 160°C with a high yield and with a substantially higher space time yield than was possible with the use of other alkaline reacting alkali compounds.
Patent CA-2033336-A1 (CA)
Title: Porous percutaneous access device
Inventor: HALLETT MICHAEL D
IPC: A61M25/16
Filed: 1990-06-01
Abstract: A tissue interface material in a particular form comprises a cuff (12) of generally cylindrical shape which encircles a tube (10).  The cuff (12) is made from biocompatible material having a homogeneous, interconnected structure of the type which can be produced by the replamineform process. The cuff (12) is surgically placed subcutaneously whereby downgrowth of dermal and epidermal tissue is supported by the porous structure of the cuff (12) so as to form a seal which acts to prevent ingress of microorganisms which would elicit a pathological state. The structure is particularly suited to anchoring a conduit (10) within skin layers and promoting a biological seal at the same time.
Patent CA-2034060-A1 (CA)
Title: Method of preparing a solution of sulfonated aryl azo/diaryl guanidine-complexed dye
Inventor: FRISWELL MICHAEL R
IPC: C09B69/04
Filed: 1991-01-11
Abstract: A liquid dyestuff, useful as a major component of a ballpoint ink is prepared.  A dye base, having both a sulfonic acid group and an azo group bonded to the same aromatic ring system, is provided in the aqueous phase of a two-phase system in which the organic phase is about 30 percent or more benzyl alcohol.  In this two-phase system, the dye base is complexed with a diaryl guanidine,  and the resulting dye concentrates in the organic solvent phase.
Patent CA-2037324-A1 (CA)
Title: Apparatus and method for calibration in a spectrophotometer
Inventor: CARGILL MARK A
IPC: G01N21/47
Filed: 1991-02-28
Abstract: A spectrophotometer apparatus (200) is adapted to provide spectral reflectance measurements of object samples. The apparatus (200) comprises a source light (254) and a reflection optics assembly (264, 268). Signals representative of reflected light are analyzed and data provided to an operator representative of the spectral response characteristics of the object sample (252). The apparatus (200) further comprises a side sensor (276) having a fixed spectral response characteristic for compensating the reflectance measurements in accordance with the light intensity emanating from the lamp. For purposes of calibration, a series of time-sequenced measurements are made of a reference sample. Utilizing these measurements, the apparatus (200) provides computations of compensation coefficients for each spectral segment. The compensation coefficients are utilized, with the side sensor measurements, to provide normalization of the reflectance measurements for each segment and for each measurement within the timed sequence. For each segment, a scale factor is then determined. The scale factors, compensation coefficients and side sensor measurements are employed to compensate actual reflectance measurements, with further compensation provided by a determination of temperature coefficients.
Patent CA-2037738-A1 (CA)
Title: Active ingredient coating process using a ph-sensitive polymer
Inventor: ARDAILLON PIERRE
IPC: A61P43/00
Filed: 1991-03-07
Abstract: Coating with one or more pH-sensitive polymers of medicinal and/or alimentary active principles by spraying onto the latter an emulsion or aqueous dispersion of the pH-sensitive polymer(s).
Patent CA-2037933-A1 (CA)
Title: Methode de traitement a l'aide d'agents medicaux
Inventor: MADDOCK STEPHEN W
IPC: A61K51/10
Filed: 1990-08-02
Abstract: Méthode de traitement thérapeutique ou de diagnostic utilisant un agent médical qui aura des effets bénéfiques si le niveau d'agent médical en circulation est réduit artificiellement plus vite que la réduction par l'évacuation normale ou par les voies normales qui préviennent les mécanismes d'évacuation. La méthode comprend l'enlèvement extracorporel de l'agent médical en passant le liquide issu du corps du patient au-dessus d'un support conçu pour immobiliser de manière sélective l'agent médical.
Patent CA-2037950-A1 (CA)
Inventor: SMITH B JACK
IPC: E05D11/06
Filed: 1991-03-11
Abstract: An adjustable door stop for a hinge mounted door having at least one hinge leaf connected to the door, one hinge leaf connected to a doorway, and a hinge pin. A body receives the hinge pin in order to rotate substantially perpendicular to the axis of the hinge pin. An adjustable mechanism extends from the body and rests against the doorway. A finger extends from the body substantially parallel to the axis of the hinge pin so that the hinge leaf connected to the door may rest against the finger, thereby stopping movement of the door.
Patent CA-2038286-A1 (CA)
Inventor: NATWICK VERNON R
IPC: F04B43/08
Filed: 1991-03-14
Abstract: VOLUMETRIC PUMP WITH SPRING-BIASED CRACKING VALVES              Abstract of the Disclosure A volumetric pump and method for displacing a predetermined quantity of fluid at a predefined cracking pressure, independent of supply and output pressures. The volumetric pump (30) includes an inlet cracking valve (46), an outlet cracking valve (52), and a plunger (48) for displacing fluid from a pumping portion (34b) of flexible tubing (34) that extends through the volumetric pump. The pumping portion of the flexible tube fills with liquid when the inlet cracking valve is fully opened and is urged to expand by jaws (236) on pivotally-mounted arms (234). The arms are forced to pivot, as tubing reshaper rollers (160), disposed on the plunger, roll along the inner surface (232) of each arm. During a pumpback-pressurization segment of the pumping cycle, the inlet cracking valve applies a cracking force to the flexible tubing, while the plunger compresses the pumping portion of the flexible tubing sufficiently to develop a cracking pressure that displaces excess fluid back through the inlet cracking valve toward a container (32). After the excess fluid has been forced from the pumping portion of the flexible tubing, a pumping segment of the cycle begins, wherein the inletcracking valve closes fully and the outlet cracking valve applies a cracking force to compress the flexible tubing. Fluid is then forced by the plunger from the pumping portion of the flexible tubing into a distal portion (34c). The volumetric pump compensates for variations in elasticity of the flexible tubing that would otherwise cause variations in the cracking pressure, using balance blocks (42 and 58). A volumetric pump (400) for use with a cassette (300) comprises a second embodiment of the volumetric pump, in which inlet and outlet cracking valves aredefined in respect to the forces applied by actuators against a flexible membrane (340) in the cassette, while a plunger (326) displaces fluid from a pumping chamber (360) in the cassette. Volumetric pump (400) applies appropriateforces to an inlet valve actuator (318) and an outlet valve actuator (332) to achieve cracking and closure forces, just as in the first embodiment.
Patent CA-2039749-A1 (CA)
Title: Card holding container system
Inventor: GORA PAUL R
IPC: B65D25/20
Filed: 1991-04-04
Abstract: Abstract A container which allows for selective fastening of a card holding member or the like on the walls of the con-tainer.  The selective fastening of the card holding member allows the card holding member to be visible without concern for the position of the container.  In a preferred embodi-ment, the container is of the stack only type and removable fasteners are employed to fasten the card holding member to the container.
Patent CA-2040413-A1 (CA)
Title: Attaching method for a masking member and a masking member
Inventor: HORIKI SEINOSUKE
IPC: B05B15/04
Filed: 1990-09-06
Abstract: ABSTRACT    The present invention provides an attaching method for a masking member comprising the attaching of a masking member made of polyolefin to a part of an article and fixing said masking member onto said part by an adhesive tape which is attached between the outside of said masking member and the surface of said article, and the present invention also provides a masking member used in said method.  Applying said method, the adhesive layer of said adhesive tape does not transfer to the surface of said article when said masking member is removed from said part having been protected.
Patent CA-2041491-A1 (CA)
Title: Method for controlling cage in a metal rolling mill
Inventor: FAPIANO DONALD J
IPC: B21B37/16
Filed: 1991-04-30
Abstract: PATENT     ABSTRACT A method for controlling metal strip thickness in a multi-stand rolling mill is provided which employs feed forward control to adjust the main drive armature current at the upstream mill stand when strip thickness data arrives at the downstream mill stand, establishes a control signal representing the desired speed of the first stand as a function of the second stand's measured speed, the strip thickness measurements, and the scheduled speeds of the first and second stands, develops an armature current reference modifier which is added to the current reference developed by the conventional speed regulator and thereby  improves gage control by reducing the response time for upstream stand speed changes and by correcting upstream stand speed for unplanned changes in downstream stand  speed.