baber/WOPTO huggingface dataset:
Patent CA-2016990-C (CA)
Title: Electrical power distribution system
Inventor: WITEHIRA PITA
IPC: H02J7/00
Filed: 1990-05-17
Granted: 1996-12-17
Abstract: The present invention relates to power distribution systems and more particularly, to such systems using power storage devices such as batteries and involving a first electrical load best served by a power source having a low current rate and slow discharge period, and a second electrical load best served by a power source having a high current rate and rapid discharge period. One particular application involving these requirements is in automobile electrical systems. The present invention provides an electrical control circuit that functions in conjunction with such power sources to satisfy such electrical system operating requirements. The system of the present invention maintains the power sources in electrically separate condition when the associated vehicle engine is not running, so as to prevent discharge of the power source serving engine starting systems as a result of inadvertent discharge of the other power source. The control circuit detects presence of external conditions such as vibration or voltage drop created as an operater is about to start the engine. The control circuit electrically connects the power sources for starting, and may retain the connection for charging purposes, but disconnects the power sources from each other after engine operation is concluded.          Controls are also provided for connection or disconnection of the power source in response to detected conditions such as undesirable voltages or current flows in the electrical system.
Patent CA-2019451-C (CA)
Inventor: DELGADO JOE M
IPC: E06B9/68
Filed: 1990-06-20
Granted: 1999-12-07
Abstract: A roll-up door for enclosing a doorway in a building. The doer comprises a horizontal rotatable drum mounted above the doorway and a flexible door panel is wound on the drum. A pair of first pulleys are secured to opposite ends of the drum and one end of a flat belt is secured to each first pulley, while the opposite end of each belt is dead-ended an a fixed object. A counterbalancing weight is attached to the belt intermediate its ends and exerts a counterbalancing force to wind the door panel on the drum. A pair of second pulleys are secured to opposite ends of the drum and located adjacent the first pulleys. One end of a second flat belt is secured to each second pulley, while the apposite end of each second belt is connected to the lower end of the door panel. A drive member, such as a hydraulic motor, is operably connected to the drum and operation of the motor in one direction will unwind the door panel from the drum and move the door to a closed position, while operation of the motor in the opposite direction will wind the door panel on the drum to move the door panel to an open position. A resilient member or spring is connected to the second belt intermediate its ends and exerts a biasing force to stretch the door panel.
Patent CA-2024651-C (CA)
Title: High-absorbable transvaginal preparation containing biologically active polypeptide
Inventor: FUJII TAKERU
IPC: A61K9/20
Filed: 1990-09-05
Granted: 2000-08-01
Abstract: The present invention is directed to a high-absorbable transvaginal preparation having excellent active ingredient absorbability, which comprises a biologically active polypeptide and an absorption promoter comprising a polyoxyethylenealkylphenyl ether and one or more compounds selected from the group consisting of an N-acylamino acid, cholic acids, pectic acid, taurine, saccharin, glycyrrhizic acid, aspartame, or a salt thereof. The preparation of the present invention is suitable for use in administering biologically active polypeptides.
Patent CA-2027338-C (CA)
Title: Highly filled thermoplastic polyester molding compositions
Inventor: FISHER ROBERT ALLAN
IPC: C08K5/10
Filed: 1990-10-11
Granted: 2002-12-10
Abstract: A novel compositions is disclosed which comprises polybutylene terephthalate, polyethylene terephthalate, and 30-85% by total weight of barium sulfate of said molding composition.
Patent CA-2027655-C (CA)
Title: Lightning protection apparatus for rf equipment and the like
Inventor: FELDMAN NATHAN W
IPC: H01Q1/50
Filed: 1990-10-15
Granted: 1999-02-16
Abstract: Lightning protection apparatus for antenna-coupled RF equipment is provided.  A one quarter wavelength shorting stub bandpass filter shunts the RF equipment and a distributed capacitance, high voltage coaxial capacitor is serially coupled between the equipment and antenna.  The shorting stub is tuned to one quarter wavelength of the RF equipment operating frequency.          The series capacitor passes frequencies at or above the operating frequency of the RF equipment.
Patent CA-2033209-C (CA)
Inventor: KUBO NAMI
IPC: B01J47/12
Filed: 1990-05-24
Granted: 2001-02-13
Abstract: This invention relates to a method for treating water by using a precoated filter.      Since the method of the present invention utilizes ion-exchange fibers having an ion-exchange polymer and a reinforcing polymer as the precoating material together with a cation-exchange resin powder and an anion-exchange resin powder, the method made it possible to prominently prolong the lifetime of the precoating material and to improve the quality of the treated water.     The method for treating water of the present invention is s~ited for the treatment of water to be used in, or waste eater from atomic power plants, steam power plants, pharmaceutical companies and the like.
Patent CA-2038446-C (CA)
Title: Dispersive holographic spectrometer
Inventor: DRUMMOND JAMES E
IPC: G01J3/28
Filed: 1991-03-18
Granted: 1995-04-11
Abstract: This invention relates to a dispersive holographic spectrometer  (12)  for  analyzing  radiation  from  an infrared  source  (16).   The  holographic  spectrometer (12)  comprises  a piezoelectric block  (40)  having  a holographic  lens  (38)  on  one  face,  an  array  of detectors (36)  on another face and a pair of vernier electrodes (32, 34) on opposite faces.  Radiation from the source (16) incident upon the holographic lens (38) is dispersed into component wavelengths  (44,  46)  and directed  towards  the  detector  array   (38).  The holographic lens  (36)  has a holographic interference pattern  recorded  on  it  such  that  radiation  of predetermined  wavelength  components  are  dispersed sufficiently enough  such that radiation of  specific wavelengths falls on different detector elements (48) of the detector array (36).  By applying a voltage to the electrodes (32, 38), an electric field is created within the piezoelectric block  (40)  such that it is either  compressed  or  expanded.   This  change  in the piezoelectric block (40)  alters the direction of the radiation  from  the  holographic  lens  (38)  to  the detector array  (36).   Therefore,  misalignment of the source  (16)  with the  holographic  lens  (38)  can  be compensated for such that piezoelectric adjustment of the block  (40)  will make the radiation of individual wavelengths fall on the desired detector element (48). Further,  radiation from different wavelengths can be directed from one detector element to another.   The detector  array  (36)  is  self-scanning  such  that  an absorption spectrum can be measured and recorded over a range of frequencies.
Patent CA-2038795-C (CA)
Title: Dispensing gun
Inventor: EYRE CHRISTOPHER J
IPC: B05C17/01
Filed: 1991-03-21
Granted: 1993-10-19
Abstract: ABSTRACT OF THE DISCLOSURE       A dispensing gun for viscous materials comprises a stock supporting a push rod which is advanceable along a keep in which is mounted a cartridge of the material. The rod is advanced by means of a catch plate and trigger arrangement which bites on the rod and is retreated by a return spring.  A release plate prevents the rod retreating with the catch plate.  The release plate is frictionally engaged with the rod so that it acts as a lost motion brake once force is removed from the trigger.  In this way the rod is allowed a limited retreat to take the dispensing force off the cartridge to prevent leakage when the trigger is not depressed.
Patent CA-2039037-C (CA)
Title: Optical fiber built-in type composite insulator
Inventor: IKEDA MITSUJI
IPC: G02B6/44
Filed: 1991-03-26
Granted: 1994-08-30
Abstract: An excellent optical fiber built-in type compo-site insulator of reduced damage rate in the producing operation and the handling operation thereof, reduced loss of light signal transmission property at initial time and in a desired temperature range, and reduced trouble rate after thermal shock test, is provided. The optical fiber built-in type composite insulator of the present invention having a penetration hole in the central axis portion of the insulator, an optical fiber extending in the penetration hole, and an inorganic glass arranged at the both end portions of the penetra-tion hole for sealing the optical fiber therein, comprises protective tubes each having a bore of an inner diameter of substantially equal to the outer diameter of coating portion of the optical fiber to allow insertion of the coating portion of the optical fiber therethrough each arranged in the penetration hole at such a position that a portion of the coating portion of the optical fiber and a portion of the coating-stripped portion of the optical fiber exist in each bore of the protective tube to protect the portions of the coating portion and the coating-stripped portion of the optical fiber in the both end portions of the penetration hole.
Patent CA-2040112-C (CA)
Title: A device for obtaining crystallizates of defined grain size
Inventor: BAKARDJIEV IVAN
IPC: B01D9/02
Filed: 1991-04-09
Granted: 1998-12-08
Abstract: A device is disclosed for obtaining crystallizates of defined grain size, while a certain flow profile is maintained in the crystallization chamber.
Patent CA-2042163-C (CA)
Inventor: KNAUER SCOTT C
IPC: H04N7/16
Filed: 1991-05-09
Granted: 1995-02-07
Abstract: An arrangement for a television receiver to attenuate correlated noise injected by the transmission medium. Recognizing that there is substantial line to line correlation of the transmission noise injected by interfering television stations, this arrangement enhances noise immunity by inserting in the receiver a de-emphasis stage that includes a circuit for removing the correlated noise. To account for the modifications to the desired signal that are introduced by the de-emphasis circuit, a pre-emphasis circuit is included in the transmitter. In accordance with one embodiment, the receiver's circuit comprises a feed-forward arrangement where the received signal of a scan line is subtracted from a fraction of the received signal of the previous scan line. At the transmitter, a feedback loop develops a scan line to be transmitted that corresponds to a video scan line subtracted from a fraction of the previous scan line to be transmitted. This arrangement also removes some of the correlation in the signal of the video scan lines, which results in the developed scan lines having lower amplitudes. The latter permits insertion of a gain stage, which increases the signal power relative to the noise and thereby improves the signal to noise ratio at the receiver.
Patent CA-2044825-C (CA)
Title: Full-range, high efficiency liquid chiller
Inventor: PARADIS MARC A
IPC: F25B47/00
Filed: 1991-06-18
Granted: 2004-05-18
Abstract: A liquid cooling system for generating very cold liquid flows, comprising sending said liquid to a heat pump circuit; said circuit including a hot-side heat exchanger (HSHE) and a cold-side heat exchanger (CSHE); said CSHE being provided with conduit means through which said liquid flows; said conduit means being in contact with and being cooled externally by cold medium. The improvement in the system comprising the installation of proper thermal barriers between said cold medium and said liquid in all areas where the velocity of said liquid is much lower than the average velocity found inside said conduit means; said improvement also comprising proper design of the entrance of said conduit means to prevent flow detachment; said design preventing any freeze-up of said liquid as well as improving efficiency and durability.  An alternative to the above said improvement is simply the elimination of all areas where the velocity of said liquid is much lower than the average velocity found inside said conduit means. Other alternatives are proposed. The improvement in the system also comprising the capability to generate and manipulate supercooled liquids in a way that prevents liquid line and cooler freeze-ups. The improvement in the system also comprising new vapor compression cycles as well as new absorption cycle arrangements for better practicing the described method.  Applications in very diversified fields are described. The technology is given the name "SUPERPAC", which stands for "SUPER Pompe A Chaleur", or super heat pump.
Patent CA-2049724-C (CA)
Title: Thermocontrol method for an injection molding machine
Inventor: SUGANUMA MASASHI
IPC: B29C45/78
Filed: 1991-08-22
Granted: 1994-10-11
Abstract: To eliminate a temperature overshoot or an undershoot during thermocontrol of thermocontrolled components, e.g. an injection cylinder, with respect to an object temperature in each operating status of the injection molding machine, the Fuzzy Control theory is used for controlling the injection molding machine. By using the Fuzzy Control system, the object temperature of the thermocontrolled components can be attained with practically eliminated overshoot and undershoot.
Patent CA-2055183-C (CA)
Title: Process and an apparatus for cooking a mass of scrambled eggs
Inventor: HARLAUX GINETTE
IPC: A23L15/00
Filed: 1991-11-08
Granted: 1997-08-12
Abstract: After the incorporation of water and starches in a mass of eggs, the product obtained is homogenized and then placed in an enclosure (1) where steam under pressure is injected into the mass of scrambled eggs containing added water and starch, the enclosure being additionally heated through its wall (2).    Application to the production of a mass of scrambled eggs  coagulated to  a homogeneous  and controlled  level intended for incorporation in a dish for subsequent deep-freezing.
Patent CA-2057597-C (CA)
Title: Low temperature degradation of galactomannans
Inventor: DAWSON JEFFREY C
IPC: C09K8/68
Filed: 1991-12-13
Granted: 1997-09-30
Abstract: A method is shown for fracturing a subterranean formation in which a hydratable polymer, crosslinking agent and breaker are combined to form a gelled fracturing fluid.  The pH of the fracturing fluid is initially raised above about 9.0 to deactivate the breaker.  A pH regulating substance is added to the fracturing fluid which slowly hydrolyzes to produce an acid, thereby dropping the breaker to produce a controlled break of the polymer gel.
Patent CA-2060953-C (CA)
Title: Combustion method for simultaneous control of nitrogen oxides and products of incomplete combustion
Inventor: HO MIN-DA
IPC: F23N1/02
Filed: 1992-02-10
Granted: 1996-03-12
Abstract: A combustion method for the simultaneous control of PICs and NOX wherein the combustion is carried out in two combustion zones.  High velocity oxidant is injected into the second combustion zone to aspirate exhaust from the first combustion zone prior to combustion within the second combustion zone. The first combustion zone is preferably operated under pyrolytic conditions.
Patent CA-2067354-C (CA)
Inventor: HEEGARD CHRIS
IPC: H04L12/413
Filed: 1990-10-02
Granted: 2001-03-27
Abstract: On a mis au point un procédé et un appareil de détection de collisions, destiné à détecter les infractions aux règles du code dans des paquets de données codées selon le code Manchester. Les signaux delta0 = S2n - S2n-1, delta1 = S2n+1 - S2n, delta2 = S2n+1 - S2n -1, sigma0 = S2n + S2n -1, sont déterminés au temps nT où S2n -1 et S2n constitue la paire binaire du code Manchester, représentative du énième bit dans un flux de données ayant une période binaire T. Le traitement de ces signaux permet la détection de la plupart des collisions, puisque les règles de codage Manchester sont trangressées pendant plus de la moitié du temps dans le signal formé par les paquets venant en collision. Afin d'assurer une détection de collisions à 100 %, un préambule utilisant une infraction intentionnelle au code Manchester dans la configuration 10 11 01 10 est avantageusement utilisé dans chaque paquet de données, et une collision est signalée lors de la détection de deux infractions de codage ou plus.
Patent CA-2070017-C (CA)
Inventor: VAN ERDEN DONALD L
IPC: B29C48/32
Filed: 1992-05-29
Granted: 1995-08-22
Abstract: A seamless tube useful in making a roofing batten is extruded from a polymeric material consisting essentially of a major amount of poly(ethylene terephthalate) and a minor amount of at least one polyolefin, flattened in a vacuum sizer so as to define two plies, and milled and drawn so as to orient the tube longitudinally.  As milled and drawn, the tube is oriented so as to have a tensile strength of at least about 25,000 psi in a longitudinal direction.  The plies are punched so as to have holes therethrough at spaced intervals along the tube.  When used to make a roofing batten to coact with conventional fasteners, such as roofing screws, the tube exhibits superior characteristics of split resistance and pull-through resistance.
Patent CA-2077272-C (CA)
Title: Managing class method names
Inventor: CONNER MIKE H
IPC: G06F9/44
Filed: 1992-09-01
Granted: 2000-01-11
Abstract: A method, system and program for effectively managing class method names by collecting representations of all of the names and additional supporting information in a single data structure. Management is accomplished by the operation of an algorithm in the memory of a processor which employs two mechanisms. First, the class method procedure tables are initialized by class specific procedures. This allows applications to access the methods without requiring externalization of the method names. The information provided by the specific procedures is retained by the class object and is accessible via class methods whenever the information is required. Second, any additional supporting information for methods, in particular the offset in the method procedure table for each method, is recorded in a single externally named data structure. The combination of the two mechanisms eliminates the requirement of external names on a per method basis.
Patent CA-2077635-C (CA)
Title: Procede et dispositif de separation du paraxylene dans des hydrocarbures aromatiques en c8 avec une adsorption en lit mobile simule et une cristallisation
Inventor: HOTIER GERARD
IPC: B01D3/00
Filed: 1992-09-04
Granted: 2007-04-17
Abstract: On décrit un procédé et un dispositif permettant de produire et de séparer e n continu du paraxylène haute pureté à partir d'une charge d'hydrocarbures en C8 aromatique. On utilise en combinaison successivement : 1) une étape de séparation de paraxylène à basse pureté (75 à 98%) par chromatographie d'adsorption à lit mobile simulé , avec un rapport de débits de solvant sur charge de 1,2 à 2,5 ; 2) une étape de purification et de lavage du paraxylène basse pureté au moyen de l'étage de recristallisatian ( - 25 à + 10.degree.C) des procédés classiques de production du paraxylène par cristallisation, évitant ainsi un premier étage de ces procédés particulièrement coûteux en énergie ; 3) une étape d'isomérisation catalytique de la fraction de la charge épuisée en paraxylèn e par l'étape de séparation et l'on récupère un isomérat que l'on recycle. Le solvant de désorption dans l'étape (1) et de lavage dans l'étape (2) est avantageusement le toluène.
Patent CA-2083666-C (CA)
Title: Method and apparatus for preprogrammed infusion of iv medicaments
Inventor: BOLLISH STEPHEN J
IPC: A61M5/172
Filed: 1992-11-24
Granted: 1997-03-11
Abstract: An apparatus for infusing TPN fluids to a patient includes a source of fluid, a pump for infusing fluid from the source to the patient, and a computer for controlling the operation of the pump.   During the operation of the apparatus the infusion rate of the pump is varied according to an infusion regimen that is based on the volume of fluid to be infused and the time during which the fluid is to be infused.   This regimen is characterized by a trifurcated ramp up region having interrelated incremental rates of infusion which transition the pump from a zero rate of infusion to a steady state rate of infusion.  The infusion regimen is also characterized by a period of steady state infusion which follows the ramp up region, and a ramp down region in which the infusion rate is decremented from the steady state rate based on the remaining volume of fluid to be infused to the patient and the remaining time  for infusing this remaining volume of fluid.   Infusion rate changes  in both the ramp up and ramp down regions is accomplished in steps.  Depending on the calculated steady state infusion rate, the step sizes may be either 5 ml/hr or 1 ml/hr.  The different time intervals between steps in the ramp up region are related to each other and to the total time for infusing fluids to the patient and the time intervals  between  steps  in  the ramp  down  region  are controlled by the computer.
Patent CA-2087239-C (CA)
Title: Filtering apparatus
Inventor: BENSON ROBERT A
IPC: B01D29/62
Filed: 1993-01-13
Granted: 2002-06-11
Abstract: Apparatus effecting separation of a clear filtrate from a body of fluid in which particles are suspended includes a filter medium (17) in a tubular structure (11) configured in the form of a closed loop (14). Filter maintenance structures (28) mounted on a continuous string (21) lying within the lumen of the tubular structure are continually driven over the surface of the filter medium to maintain an optimum condition of the filter surface. This string with attached filter maintenance structures is driven around the loop of the tubular structure by hydraulic forces generated by the fluid introduced into the apparatus for filtering.
Patent CA-2093797-C (CA)
Inventor: FRIARY RICHARD J
IPC: C07D471/14
Filed: 1991-10-04
Granted: 1998-09-22
Abstract: Composés de formule (1.0), où R1 est H ou un groupe alkyle C1-C7, cycloalkyle C3-C7, CF3, aryle avec ou sans substitution, hétéroaryle, -O-alkyle C1-C7 ou -O-cycloalkyle C3-C7; R2 et R3 sont chacun indépendamment H, ou un groupe alkyle C1-C7, cycloalkyle C3-C7, CF3, NO2, halogéno, OR7, NR8R9 ou S(O)mR10, m étant 0, 1 ou 2; R4 est H, un alkyle C1-C7, un arylméthyle avec ou sans substitution; R5 et R6 sont chacun indépendamment H ou un groupe alkyle C1-C7, cycloalkyle C3-C7, aryle avec ou sans substitution, hétéroaryle, arylméthyle avec ou sans substitution, ou alors représentent ensemble une chaîne de groupes (CH2)k, où k est 3, 4 ou 5; R7, R8 et R9 sont chacun indépendamment H, un groupe alkyle C1-C7, -C(= O)-(alkyle C1-C7), -C(= O)-aryle ou -(C = O)hétéroaryle; R10 est un groupe alkyle C1-C7, cycloalkyle C3-C7, aryle avec ou sans substitution, hétéroaryle avec ou sans substitution ou encore arylméthyle avec ou sans substitution; une seulement des lignes en pointillé a, b, c et d, représente une liaison carbone-carbone; n est 0, 1, 2 ou 3; Z est O ou S, Q est CH, N ou NO, à la condition que Z ne soit pas S lorsque Q est NO.  L'invention décrit également un sel d'addition avec un acide, de qualité pharmaceutique, d'un de ces composés.  Tous ces composés sont des agents utiles pour le traitement de l'asthme ou d'autres allergies, ainsi que des maladies inflammatoires.