baber/WOPTO huggingface dataset:
Patent CA-2037523-A1 (CA)
Title: Purifying fluids by adsorption
Inventor: JAIN RAVI
IPC: B01D53/04
Filed: 1991-03-04
Abstract: ABSTRACT             The invention relates to a process and a reactor for purifying a fluid by adsorption wherein the fluid flows along an axis from an inlet toward an outlet of a container of particles which treat the fluid.  The improvement arises by arranging the particles into a first region connected to the inlet and a second region connected to the outlet such that the average particle size in the second region is smaller than in the first region.  The axial length of the second region is preferably selected to be at least the length of the expected mass transfer zone for an adsorption process.  Use of smaller size particles decreases the length of the mass transfer zone and increases the utilization of the adsorbent material.
Patent CA-2037592-A1 (CA)
Title: Ratchet wrench with manually removable core
Inventor: CHOW KIRK K
IPC: B25B23/00
Filed: 1991-03-05
Abstract: Abstract of the Disclosure A ratchet wrench is described which includes a cap-surmounted core having a rotatable body sleeved in a drive ring.  A shiftable pawl intercouples the drive ring and the core for driving the core selectively in each of opposed annular driving modes.  A shaft projecting axially from the core terminates in a stud for carrying a tool element.  The wrench is characterized in that there is provided a washer-like locking plate having a central opening and positionable axially over the shaft of the core to overlie the body of the core.  The plate is configured at its central opening for lockingly keying with the shaft releasably to couple the locking plate with the shaft and to secure the core in the drive ring.
Patent CA-2038303-A1 (CA)
Title: Lightweight cement for high pressure applications
Inventor: CHAN KENG S
IPC: C09K8/46
Filed: 1991-03-14
Abstract: PATENT     ABSTRACT OF THE DISCLOSURE           A lightweight cement composition for use in high pressure environments (greater than 3000 psi) comprises an aqueous slurry of a hydratable cement, ceramic microspheres and a foaming surfactant.  It has been found that the presence of the foaming surfactant synergistically overcomes the normal tendency of the ceramic microspheres to crush at a pressure than about 3000 psi.
Patent CA-2039388-A1 (CA)
Title: Method for the specific multiplication of nucleic acid templates and for the determination of nucleic acids
Inventor: KESSLER CHRISTOPH
IPC: C12Q1/6865
Filed: 1991-03-28
Abstract: A b s t r a c t A method for the specific multiplication and for the detection of nucleic acid templates by hybridization of two nucleic acid primers to this template, formation of a nucleic acid complementary to the template with these primers and transcription of the nucleic acid formed into a multitude of nucleic acids analogous to the template, characterised in that the template is hybridized with two primers which are arranged in the same orientation, which contain sequences complementary to the template and of which the second primer carries, at the end facing away from the first primer, a transcription-initiation site and a double-stranded sequence to which a RNA polymerase can bind, the two primers hybridized in this way are covalently linked to form a nucleic acid complementary to the template by filling up the gap between them, transcripts of this nucleic acid complementary to the template are formed and, if desired, these transcripts are detected in a known manner.
Patent CA-2040996-A1 (CA)
Title: Composition and method for controlling cholesterol
Inventor: ALBRIGHT ROBERT L
IPC: C08F20/52
Filed: 1991-04-23
Abstract: ABSTRACT OF THE DISCLOSURE       A nontoxic polymer comprising a backbone having pendant groups which have sites which are capable of forming ionic bonds and sites capable of forming hydrogen bonds with respective receptive sites on the anions of conjugate acids formed by the reaction of bile acids with glycine and of bile acids with taurine, preferred polymers including polymeric amides, and pharmaceutical compositions containing the same for treatment of hypercholesterolemia.
Patent CA-2041876-A1 (CA)
Title: Process for co-oligomerizing propylene and alpha-olefins to prepare synthetic lubricant base stocks having improved properties
Inventor: SANDERSON JOHN R
IPC: C07C2/22
Filed: 1991-05-06
Abstract: ABSTRACT (D# 80,943-F) A process is disclosed for preparing synthetic lubricant base stocks having improved properties.  Synthetic lubricant base stocks may be prepared in good yield by oligomerizing linear olefins  using  certain  acidic  calcium  montmorillonite  clay catalysts.  When a mixture of propylene and long-chain alpha-olefin is used, in which up to about 20 wt.% of the mixture comprises propylene,   and   the   co-oligomers   prepared   therefrom   are hydrogenated, a synthetic lubricant base stock having a lower pour point and a higher viscosity index is prepared.
Patent CA-2042954-A1 (CA)
Title: Injection molding controller with controlled variable learning
Inventor: STROUD JAMES W III
IPC: G05B19/02
Filed: 1991-05-21
Abstract: A controller for an injection molding machine controls the injection ram by means of profiles having segments with programmable setpoints. The injection molding machine is initially controlled during each segment in an open-loop manner. Closed-loop control is then adopted. The difference between the open-loop and the closed-loop output to the injection molding machines valves is used to change the setpoints with each cycle to improve the open-loop accuracy over time. The learning rate of change of the open-loop setpoints decreases after the initial correction.      During the open loop control, the closed loop control is deactivated to prevent it from being affected by the previous open loop error.
Patent CA-2043355-A1 (CA)
Title: Luggage case
Inventor: LEE DOO Y
IPC: A45C3/00
Filed: 1991-05-28
Abstract: IMPROVED LUGGAGE CASE    Abstract of the Disclosure A  luggage  case  including  a  rectangular  shell  of relatively flexible material having a back, front, top, bottom and ends, with the front having a closable opening therein; a reinforcing strip which extends along the top and partially down each of the sides for providing structural support to the shell to maintain the rectangular shape thereof; and a pair of support rods respectively secured to the sides,  each of the support rods having a substantially rectangular shape corre-sponding to the shape of the perimeter of each of the sides, and being secured thereto.   In this manner,  when a force is exerted on the sides, the sides may flex in the direction or the  force,  and when  the  force  is removed,  the  sides will resume their  initial position due to the elastic restoring force of the support rods.  Both the reinforcing strip and the support  rods  are  disposed  on  the  inside  surfaces  of  the luggage  case.    The  luggage  case  further  may  include  a plurality of wheel units which are disposed on the underside of the bottom at a location proximate the sides,  each wheel unit having  a  U-shaped  tongue which  extends  therefrom  and which entraps each of the support rods so as to maintain the position of the support rods.
Patent CA-2046720-A1 (CA)
Inventor: BEARDSLEY BRENT C
IPC: G06F13/12
Filed: 1991-07-10
Abstract: A control unit for DASD operation to transfer data between the device and a buffer and between a channel and a  buffer. In  that  manner  the  channel  and  device  are  enabled  to transfer data independently of each other.  Mechanisms are provided for communication between the channel  interface process in the control unit and the device interface process in the control unit.  Some of these mechanisms are stored with the record in the buffer and others are  stored in control storage.  Principle communicating mechanisms include a device record pointer, a channel record pointer, a next operation field,  a device state indicator,  record control flags, and two buffer pointers.
Patent CA-2048833-A1 (CA)
Title: Automotive fuel dispensing nozzle
Inventor: GOHRING SIEGFRIED
IPC: B67D7/52
Filed: 1991-08-08
Abstract: ABSTRACT OF THE DISCLOSURE         Gasoline and other fuel dispensing nozzles are often unnecessarily complicated, tend to drip following use, and cause pressure surges or hammering in the feed hose and pump.          A solution to these problems is afforded by a nozzle for use on the end of a fuel hose which includes a tubular housing; a main valve in the housing downstream of the middle thereof in the direction of fuel flow; a control valve which is opened by movement of an operating lever, and which diverts liquid from the main valve to cause a pressure drop and opening of such main valve; a pressure valve connected to the control valve for closing when the fuel rising in the fuel tank or other receiver blocks a port in the outlet end of the nozzle, the closing of the pressure valve resulting in closing of the main valve, closing of the control valve, and the return of the operating lever to the rest position; and a detent on the operating lever for releasably retaining the lever in one of a plurality of open positions.
Patent CA-2051290-A1 (CA)
Inventor: SCHILDKRAUT JAY S
IPC: G02B6/12
Filed: 1991-09-13
Abstract: A quasi-phase matching optical waveguide (100) for producing a second harmonic of an internally propagated polarized laser beam having a wavelength in the range of from 700 to 1300 nm disclosed. The waveguide (100) is comprised of at least one array of laterally spaced transparent electrodes (105) in direct contact with a transmission medium (107) containing similarly polar aligned organic molecular dipoles in overlying areas (109). The transparent electrodes (105) and overlying areas (109) of the transmission medium (107) are each of the same width and spacing. <IMAGE>
Patent CA-2054818-A1 (CA)
Inventor: GADELLE CLAUDE
IPC: E21B43/30
Filed: 1991-11-01
Abstract: Dans un drain pourvu d'un casing perforé, on injecte un fluide sous pression en différents emplacements par une modification sélective de la position des points d'injection par rapport à ces emplacements au moyen d'un tube. On fait varier la position des orifices d'injection et/ou leur aire, par ouverture sélective de vannes ou par déplacement d'un tube d'injection. On peut également faire varier la densité de perforations du casing et/ou du tube d'injection. On réalise un balayage du réservoir traversé par le drain en injectant par exemple un fluide gazeux chaud tel que de la vapeur d'eau sous pression et on choisit par exemple la densité de perforations d'un tube pour que la quantité de chaleur transférée à la formation soit sensiblement constante le long du drain.      Application au balayage d'un réservoir pétrolifère par exemple.
Patent CA-2058518-A1 (CA)
Inventor: HSU AN-SUN
IPC: B23D63/12
Filed: 1991-12-27
Abstract: The method of making a saw blade includes the steps: (1) provision of a trapezial tooth between every two triangular teeth, the trapezial tooth having two opposite sides which extend towards one another at a top end, a distal bottom end opposite the top end and two opposite trapezial faces; (2) provision of cutting edges by forming two inclined faces which converge from one of the trapezial faces towards the other one of the trapezial faces; (3) provision of a cut at a rear one of the inclined faces which cut forms an inverted "L" shape that extends vertically to a predetermined height from the distal bottom end; and (4) the grinding of the distal bottom end to form a triangular tip face which extends inclinedly from a front section to a rear section of the trapezoid tooth.
Patent CA-2059040-A1 (CA)
Inventor: GHEERAERT PHILIPPE
IPC: B22D11/124
Filed: 1991-01-08
Abstract: SOCIETE DITE: SOLLAC Capteur de contrôle de refroidissement secondaire d'une machine de coulée continue, mannequin équipé de tels capteurs et procédé de contrôle d'une machine de coulée continue. DU CONTINU TECHNIQUE DE L'INVENTION L'invention concerne un capteur de contrôle du refroidissement secondaire d'une machine de coulée continue qui comporte des rampes de refroidissement secondaire munies de diffuseurs d'eau et disposées dans les travées séparant les rouleaux, ledit capteur étant entraîné de manière à circuler devant lesdites rampes de refroidissement, caractérisé en ce qu'il est constitué d'une enceinte (1) étanche de volume réduit qui présente une paroi (3) en matériau isolant munie d'un plot (12) thermiquement conducteur qui est disposé de manière à faire face aux rampes de refroidissement lors de la circulation du capteur, les autres parois de ladite enceinte (1) étant thermiquement isolantes, en ce qu'au moins une résistance électrique (6,7) de chauffage est disposée dans ladite enceinte, en ce que la ou lesdites résistances (6,7) sont commandées de manière à réguler la température dans ladite enceinte à une valeur de consigne et en ce qu'il comporte un capteur (11) de température disposé dans ladite enceinte étanche. Fig. 1
Patent CA-2064460-A1 (CA)
Title: Laser beam aiming device
Inventor: BAIKRICH MICHEL
IPC: F41G1/35
Filed: 1990-10-16
Abstract: The laser generator (20) is mounted in a sleeve (13) in such a way that its barrel (22) is held by three support elements (25, 25', 30) two of which consist of a sliding part (25, 25') having a bearing surface (24, 24') extending in an oblique plane with respect to the axial plane which is perpendicular to the radial direction of the support element in question, while the oblique bearing surface (24, 24') of each sliding part coacts with a rib (23) projecting from the outer surface of the barrel (22) of said laser generator (20). The side of the sliding part (25, 25'), which is opposite the above mentioned bearing surface having a thread (26, 26'), engages a thread formed on the inner surface of a ring (28, 29) so that the rotation of the ring (28, 29) moves the sliding part (25, 25') along the axis of the sleeve (13) in a direction parallel thereto, while the above mentioned oblique bearing surface (24, 24') moves the axis of the laser generator barrel (22) in a direction parallel to the radial direction in question.
Patent CA-2064767-A1 (CA)
Title: Tray for use in a sorting machine
Inventor: SOLUND JORGEN
IPC: B07C5/36
Filed: 1990-08-31
Abstract: A tray e.g. for use in a sorting machine of the type known from the Danish Patent 155 207 consists of a rectangular frame (17) which is covered with fabric (18). The frame (17) is pivotally suspended from two U-shaped rods (19) and is horizontal in the position of equilibrium. The frame (17) can be pivoted from the position of equilibrium to an inclined discharge position. During this, discharge means (22, 25) or (23, 24) hit the fabric (18) and stretches it so that emptying of the contents of the tray takes place rapidly and effectively.
Patent CA-2065802-A1 (CA)
Title: Process for the preparation of 2-pyridylsulfonylureas, and thiadiazolopyridines as intermediates in this process
Inventor: KEHNE HEINZ
IPC: C07D513/04
Filed: 1992-04-10
Abstract: ABSTRACT OF THE DISCLOSURE:               HOE 91/F 108 Process for the preparation of 2-pyridylsulfonylureas, and thiadiazolopyridines as intermediates in this process The process according to the invention for the prepara-tion of herbicidal pyridylsulfonylureas of the formula (I)                 (I) in which R1 to R5 and X are as defined in claim 1 com-prises the reaction of the zwitterion (II) with the amino heterocycle (III)                      (II)                     (III) The novel zwitterionic 1,1,3-trioxo-1,2,4-thiadiazolo-[4,5-a]pyridines  can  be  obtained  according  to  the invention by the reaction of phosgene with compounds IV, or the reaction of phosgene with compounds V            (IV)                                    (V) in the presence of an alkyl isocyanate.
Patent CA-2067135-A1 (CA)
Title: 2-anilino phenylacetic acid derivatives as inhibitors of pla2 and lipoxygenase
Inventor: FAILLI AMEDEO A
IPC: A61K31/403
Filed: 1990-10-27
Abstract: The are disclosed compounds of formulae (I) or (II), wherein R is hydroxy, lower alkoxy or lower alkoxyamino; one of R1 and R2 is A(CH2)nO-, the other is hydrogen; n is 1 - 2; A is phenoxyethyl, phenoxyphenyl or a group having formula (a), wherein X is -N= or (b); z is (c), (d), (e), (f), -S- or -O-; R3 is hydrogen, lower alkyl or phenyl; R4 is hydrogen or lower alkyl; or R3 and R4 taken together form a benzene ring optionally substituted by halogen; in which case the point of attachment of A to the rest of the molecule may be from this ring; R5 is hydrogen or lower alkyl and each may be the same or different; R6 is hydrogen, halo or lower alkyl and each may be the same or different;  and the pharmacologically acceptable salts thereof, and their use in the treatment of inflammatory conditions, such as rheumatoid arthritis, ulcerative colitis, psoriasis and other immediate hypersensitivity reactions; in the treatment of leukotriene-mediated naso-bronchial obstructive air-passageway conditions, such as allergic rhinitis, allergic bronchial asthma and the like; and as gastric cytoprotective agents.
Patent CA-2068673-A1 (CA)
Title: Composite structure and method of making
Inventor: PALL DAVID B
IPC: B01D63/06
Filed: 1992-05-14
Abstract: Abstract of the Disclosure A composite structure, particularly a filter structures, is provided comprising a support having a surface and a porous membrane formed integrally to the surface of the support.  The support preferably includes means for directing a fluid away from the surface of the support.  The support surface is at least slightly soluble in a solvent.  The porous membrane comprises a resin soluble in the solvent and precipitated while the casting solution is in contact with a porous substrate and the surface of the support.  The membrane is formed and integrally secured to the surface of the support contemporaneously.
Patent CA-2068711-A1 (CA)
Inventor: WALDORF RONALD A
IPC: A61B3/113
Filed: 1992-05-14
Abstract: A non-invasive apparatus for monitoring physiological responses for detecting the presence of drug impairment.  The oculomotor and pupillary system is monitored and evaluated to detect the ingestion of drugs and the impairing effect or influence thereof.  The horizontal, vertical, oblique and torsional eye movement, eye lid blink activity as well as the size and reactivity of the pupil are the primary data sources.  An enclosed chamber surrounds each of the eyes of the subject, and thereby precludes the admission of ambient light.  Within each chamber are disposed point sources of infrared radiation specifically oriented with respect to the subject's eye.  An infrared sensitive video camera is positioned to minimize the effect of cosine compression within each chamber relative to the subject and is positioned with respect to the infrared radiation sources in order to provide maximum contrast between the pupil and iris of the eye.  To detect movement of the eye in response to visible stimulus, a plurality of low intensity, visible light sources are disposed horizontally and vertically within each chamber.  The sequential illumination of the visible light sources simulates eye movement while precluding pupil reaction thereto.  The output of the video camera is processed concurrently with data responsive to other physiological responses to determine drug impairment.
Patent CA-2069642-A1 (CA)
Title: Material for the preparation of sintered composite materials
Inventor: BERGER MICHEL
IPC: B22F1/14
Filed: 1990-11-20
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention relates to a base compo-site material for the preparation of sintered composite materials  reinforced with  long fibers,  wherein  said matrix is  formed from a combination of a polymeric organic material and/or an inorganic material of the ceramic type and a metallic material, which are pre-ferably intimately mixed.     It further relates to the materials resulting from the  sintering of these base materials,  to the process for their manufacture and to their use in the field of aeronautics,  the aerospace sector or high-speed vehicles such as TGV (high-speed trains), or in the automobile sector, or non-flammable  products.
Patent CA-2071591-A1 (CA)
Inventor: IATROPOULOS GEORGES
IPC: E03C1/306
Filed: 1992-06-18
Abstract: A device for unplugging drains comprises an elongated body defining therein a longitudinal bore and including a pair of opposed end sections each adapted to threadably receive a standard hose and provided with two different configurations of L-shaped lugs  for connection to various  drain pipe strainers.   The  device  defines  central  outside threaded sections with an enlarged nut being engaged thereon. Between the central threaded sections and both the end sections  are defined smooth annular neck sections adapted to receive a resilient annular member for sealing the mouth of the drain pipe when the device is mounted to the strainer thereof. Water supplied by the hose through the bore of the device provides  water  pressure  in  the  drain  pipe  for unclogging the same. Various adapters which can be fitted  to  the  end  sections  of  the  device  are contemplated for allowing the device to be used with further   drain   configurations   and   also   with compressed air.
Patent CA-2071857-A1 (CA)
Title: Method and apparatus for producing films
Inventor: KINNUNEN PAAVO K J
IPC: B05C3/09
Filed: 1990-12-14
Abstract: The invention concerns a method for continuously producing a monomolecular film at a liquid-gas interface in a trough, by means of a barrier element (7) rotating horizontally around a vertical shaft, which barrier moves the film from a film formation compartment (4) through a connection zone (6) to a deposition compartment (5) to be deposited onto a substrate. On the opposite side of the barrier with respect to the rotational direction of the barrier element, more film forming substance is added to the liquid surface for forming a new film, which in turn is transferred by a rotating barrier element at a suitable surface pressure to elastically join the first mentioned film as an extension to the same. The invention also concerns a trough apparatus for continuously producing films.
Patent CA-2073320-A1 (CA)
Inventor: NAKAYAMA JUNICHIRO
IPC: G11B11/105
Filed: 1992-07-07
Abstract: A magneto-optical  medium  has  a  substrate  through which  a  light  beam  is  transmitted  and  a  recording-reproduction  layer.   The  recording-reproduction  layer, which exhibits an in-plane magnetization characteristic at the first temperature while still containing magnetization components in the perpendicular direction corresponding to information,    comes   to   exhibit   a   perpendicular magnetization characteristic above the second temperature higher   than   the   first   temperature.     In   this magneto-optical   recording   medium,    information   is reproduced by utilizing a temperature distribution of the recording-reproduction    layer    being    subjected    to irradiation of a light beam and by raising the temperature of a portion within a light spot of the light beam from the first temperature to the second temperature.
Patent CA-2073485-A1 (CA)
Title: Planetary gear system for sweeper brush roll
Inventor: ZAHURANEC TERRY L
IPC: A47L11/22
Filed: 1992-07-08
Abstract: PLANETARY GEAR SYSTEM FOR SWEEPER BRUSH ROLL               ABSTRACT OF THE DISCLOSURE A floor sweeper includes a housing and wheels rotatably mounted on the housing for supporting the housing on a subjacent surface.  A brush roll is rotatably mounted on the housing.   A pair of gear cartridge members are located on opposite sides of the housing.  Each of the gear cartridge members includes a first planetary gear train including a sun gear coupled to a respective end of the brush roll, a gear ring encircling the sun gear and a plurality of planet gears engaging both the sun gear and gear ring.  A first drive wheel is coupled to the gear ring and a casing encloses the first planetary gear train.