baber/WOPTO huggingface dataset:
Patent CA-2018348-A1 (CA)
Inventor: FREY HELMUT
IPC: H01M10/14
Filed: 1990-06-06
Abstract: ABSTRACT        Apparatus for forming stacks of accumulator plates having an endless horizontal conveyor device  (13)  for accepting and removing the stacks, which are each formed from a predetermined number of plates, to which conveyor device a device for transferring sets of plates (9)  is assigned,  which device  can  be  moved  in the vertical direction between, in relation to the conveyor device, a raised position, in which the transfer device (9) can be charged alternately and cyclically from magazines (2, 6) located opposite one another in pairs with a negative plate, a separator plate, a positive plate and a separator plate,  the transfer device  (9)  being capable of being lowered stepwise in accordance with the height of a set of plates,  and a lowered transfer position,  in which the transfer device transfers to the conveyor device, which can be moved intermittently, the stack of plates formed on said transfer device from a predetermined number of sets of plates. (Fig. 1)
Patent CA-2020076-A1 (CA)
Inventor: WASSERMAN DAVID
IPC: A61K9/00
Filed: 1990-06-28
Abstract: An absorbable mesh material useful as a dental implant. The mesh is cut by lasers to afford smooth edges which will not unravel.  The implant may be attached by a ligature or suture material, generally formed from the same material as the implant, and attached to the implant by, among other things, laser or ultrasonic welding or interweaving.
Patent CA-2020986-A1 (CA)
Title: Halogenated pyrimidine 3-oxide derivatives, their use for the treatment and prevention of hair loss and for stimulating its regrowth
Inventor: TULOUP REMY
IPC: A61Q5/02
Filed: 1990-07-12
Abstract: Compounds of formula: <IMAGE> in which: R1 and R2 denote, independently of each other, a hydrogen atom or a carbamoyl group of formula: <IMAGE> with R'3 denoting hydrogen or R3; an alkoxycarbonyl group of formula: <IMAGE> or an acyl group of formula: <IMAGE> in which R3 denotes an alkyl, alkenyl or cycloalkyl radical; R3 may also denote an aryl or aralkyl radical; R denotes a linear or branched C1-C6 alkyl radical substituted by one or more halogen atoms, and their use for the treatment and prevention of loss of hair and for stimulating its regrowth.
Patent CA-2023652-A1 (CA)
Title: Method of and apparatus for filling containers with liquids
Inventor: METTE MANFRED
IPC: B67C3/06
Filed: 1990-08-20
Abstract: ABSTRACT           Successive containers are filled with liquid during advancement along an elongated path wherein the containers are internally pressurized prior, during and subsequent to admission of liquid.  The containers are labelled and/or imprinted and sealed while their internal spaces are maintained above atmospheric pressure.  The filling apparatus has an annulus of discrete filling devices which are located above and register with discrete containers in the course of the filling operation and each of which is associated with a discrete container sealing unit.  Each filling device has a centering sleeve which engages the external surface of a container beneath the open upper end of the container and seals the inlet of the container from the atmosphere during pressurizing, filling, labelling, imprinting and sealing.  The labelling and/or imprinting units act upon the containers during filling, and the sealing units apply closures to freshly filled containers while the inlets of such containers are still sealed from the atmosphere by the respective centering sleeves.
Patent CA-2024664-A1 (CA)
Title: Method for selective plugging of a zone in a well
Inventor: MCDANIEL STEPHEN J
IPC: E21B33/14
Filed: 1990-09-05
Abstract: METHOD FOR SELECTIVE PLUGGING OF A ZONE IN A WELL            Abstract of the Disclosure A mixture of a liquid epoxy material and a hardener is selec-tively placed in a well traversing a subterranean formation adjacent to a zone in said formation which is to be plugged.  The mixture is dis-placed into the zone and allowed to harden, thereby plugging the zone. The process is particularly applicable to sealing off water production in a gravel-packed well.  A positive displacement bailer may be effect-ively used to deliver the mixture to the zone.  The epoxy material used is immiscible with and is heavier than the fluid in the well.  The epoxy material is further characterized as being essentially free of solids and having a low viscosity at downhole conditions of temperature and pressure. The hardener has an activation temperature which is lower than the downhole formation temperature.
Patent CA-2027400-A1 (CA)
Title: Molding composition
Inventor: WALLACE LAWRENCE R
IPC: C08K7/14
Filed: 1990-10-11
Abstract: MOLDING COMPOSITION                       ABSTRACT A novel molding composition is disclosed which comprises polybutylene terephthalate, polyethylene terephthalate, and 20-85% of zinc oxide by total weight of said molding composition.
Patent CA-2028019-A1 (CA)
Title: Double screen belt press
Inventor: KAPPEL JOHANNES
IPC: B30B9/24
Filed: 1990-09-19
Abstract: A double screen belt press for dewatering mixtures of fibrous material suspensions has a wedge compression zone comprising rolls and perforated plates  supporting generally upper and lower screen belts.   For dewatering mixtures of fibrous material suspensions having a high dry solids content,  at least one sealed material  feed empties  into  the  wedge  compression  zone  with  a  high pressure.   A generally vertically gravity tower with an outlet  port  is  provided  to  feed  material  into  the entrance of the wedge compression zone above the lower screen belt and in front of the front roll supporting the upper screen belt.  The outlet port area of the material feed is  sealed on at least the side facing the lower screen belt and optionally on the side facing the upper screen belt and on the other side of the material feed facing away from the wedge compression zone between the material feed and the lower screen belt.
Patent CA-2028050-A1 (CA)
Title: Production of grey scale images using pixellated exposure device
Inventor: LEA MICHAEL C
IPC: H01L33/48
Filed: 1990-10-19
Abstract: ABSTRACT                 PRODUCTION OF GREY SCALE IMAGES USING PIXELLATED EXPOSURE DEVICES          A method of forming grey-scale images on a photosensitive imaging medium by means of an exposing apparatus comprising a pixellated array of exposure sources, e.g., an array of light emitting diodes or liquid crystal shutters, the imaging medium being capable of  spatial resolution finer than the pixel dimensions of the exposing apparatus and developing  a transmission density in imaged areas that varies non-limearly with the exposure energy received by said imaged areas, in which the exposure conditions are adjusted such that the variation in average transmission over a whole pixel area from image pixel to image pixel caused by spatial energy distribution variations is less than 5% for the same energy delivered to each pixel area.
Patent CA-2030629-A1 (CA)
Inventor: BEWLEY WILBUR C
IPC: A47L5/36
Filed: 1990-11-22
Abstract: A vacuum cleaner has a disconnectable handle and dirt tube assembly mounted to a floor nozzle.  The assembly includes  a  wire  harness  connector  which  mates  to  a corresponding connector in the floor nozzle to provide power to the floor nozzle components.   The connectors are each securely mounted in their respective components,  so that when the handle assembly is connected to the floor nozzle, the electrical connection is automatically made.  Access to the floor nozzle components is had by removal of the floor nozzle  cover.   The  handle  assembly,  when  installed,  is located  in  spaced  relationship  from  the  floor  nozzle, overlying an arcuate portion of the floor nozzle top in all but a horizontal position of the handle assembly.  When the handle assembly is in a horizontal position, a body edge of the  handle  assembly  overlies  projections  on  the  nozzle cover.  As a result, in any handle position, the nozzle top may not be removed until the handle assembly is removed from the floor nozzle, thereby disconnecting power to the floor nozzle.
Patent CA-2031452-A1 (CA)
Title: Block copolymers
Inventor: WILLIS CARL L
IPC: C10N30/02
Filed: 1990-12-04
Abstract: Novel, selectively hydrogenated block copolymers, which copolymers comprise at least one block of polymerized alkyl methacrylate and one block of polymerized conjugated alkadiene, provide improved dispersant properties and viscosity index improvement to hydrocarbon lubricating oils.
Patent CA-2035615-A1 (CA)
Title: Flower greeting card
Inventor: REINHOLD HOLTKAMP JR
IPC: B65D85/52
Filed: 1991-02-04
Abstract: Abstract of the Disclosure A  greeting  card  assembly  comprised  of  a plurality  of  transparent  side  walls  and  a transparent back panel, all of which are integrally formed or connected.  A greeting card is adapted to be folded over the back panel so as to be visible when viewed from the front of the assembly, with the greeting card being hinged at one end so that it can be opened away from the back panel.  The back panel is formed with a hinged panel which permits access to the interior of the assembly.  A potted plant and a supporting water container can be inserted through such opening,  with a protective sleeve extending upwardly from the pot and around the foliage and flowers of the plant.  The upper edge of the sleeve is retained in position to prevent vertical upward movement of the pot,  container, and sleeve.   The entire assembly provides not only an attractive display of the plant, but also provides a greeting card visible through the transparent panels, with the card being unfolded for reviewing more intimate greetings or messages.
Patent CA-2037188-A1 (CA)
Title: Agent for treating disorders from cerebral neuro-degeneration
Inventor: TATSUOKA TOSHIO
IPC: A61K31/535
Filed: 1991-02-27
Abstract: ABSTRACT             AGENT FOR TREATING DISORDERS FROM   CEREBRAL NEURO-DEGENERATION      A therapeutic agent for alleviating disorders caused by nerve cell degeneration in the brain which contains a cyclopropachromen derivative represented by the following general formula (I):     (I)   wherein n is an integer of from 2 to 5; the carbon atom in the -(CH2)n- moiety may be option-ally substituted with a methyl group or a hydroxyl group;     Rl and R2 independentlY represent a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a phenyl group or an aralkyl group having 7 to 10 carbon atoms; or alternatively R1 and R2 form together with the nitrogen atom to which they are attached, a morpholino group, a thiomorpholino group, a pyrrolidinyl group, a piperidinyl group, a homopiperidinyl group, a piperazinyl group, a homopiperazinyl group, an N-alkylpiperazinyl group, N-alkylhomopiperazinyl group, an N-hydroxyalkylpiperazinyl group or a pyrrolidonyl group or alternatively R1 and R2 form together with the nitrogen atom to which they are attached, and further a carbon atom to which said nitrogen atom is bound, a pyrrolitidinyl group;     Al and A2 independently represent a hydrogen atom, a hydroxyl group, a halogen atom, an optionally halogenated alkyl group having 1 to 5 carbon atoms, an optionally substituted alkoxy group, an acyloxy group, a carbamyloxy group or an optionally substituted carboxyl group;     and Bl and B2 independently represent a hydrogen atom, a halogen atom, a nitro group, a cyano group, an optionally halogenated alkyl group having 1 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms or an optionally substituted carboxyl group; or a pharmaceutically acceptable salt thereof as an active ingredient, together with a pharmaceutical carrier or adjuvant.
Patent CA-2037829-A1 (CA)
Title: Process for preparing metallic mercury from calomel
Inventor: BARREAU GUY
IPC: C22B43/00
Filed: 1991-03-08
Abstract: PROCESS FOR PREPARING METALLIC MERCURY FROM CALOMEL     A B S T R A C T       The invention provides a process and an installation for producing mercury by reduction of calomel by implementing a process for preparing metallic mercury, said installation essentially comprising: a reaction vessel with an inclined base for the reduction provided with an agitator, connected by a conduit to said decanter and provided with water supply means and sulfuric acid supply means, and a mercury recovery tank connected to the lower part of the reaction vessel.
Patent CA-2038314-A1 (CA)
Title: Sensor for detecting fluid flow from a positive displacement pump
Inventor: NATWICK VERNON R
IPC: A61M5/142
Filed: 1991-03-14
Abstract: A SENSOR FOR DETECTING FLUID FLOW PROM A POSITIVE DISPLACEMENT PUMP       Abstract of the Disclosure A flow detector for use in a volumetric pump to determine if fluid is being displace by the pump. The volumetric pump (30) includes an inlet cracking valve (46) and an outlet cracking valve (52) disposed on opposite sides of a plunger (48) used to displace fluid by compressing flexible tubing (34). During a pumping segment of a pumping cycle for the volumetric pump, the outlet cracking valve is closed with a cracking force that compresses the flexible tubing until the pressure of the fluid displaced by the plunger exceeds a cracking pressure, at which time the outlet cracking valve opens to enable fluid flow from the volumetric pump. A cracking flexure (182) provides the cracking force. As the outlet cracking valve opens in response to the fluid pressure exceeding the cracking pressure, a flow detector (54) comprising in one preferred embodiment astrain gauge (198) mounted to the cracking flexure responds to the stress generated in the cracking flexure thereby, producing a signal indicative of fluid flow from the volumetric pump. Other types of sensors, including an optical sensor (300), and a linear variable displacement transformer (LVDT) (318) are alternatively used for sensing movement of an outlet valve arm (180) as fluid flows from volumetric pump (30). Since a compressible gaseous fluid in the pumping portion of the flexible tubing does not develop the cracking pressure, the flow detector also provides an indication when a source of liquid (31) for the volumetric pump has run dry.
Patent CA-2038491-A1 (CA)
Title: Detergent compositions
Inventor: BOSKAMP JELLES V
IPC: C11D3/20
Filed: 1991-03-18
Abstract: A detergent composition for fahric washing comprises detergent-active compounds and a detergency builder system comprising maximum aluminium zeolite P and a citrate.
Patent CA-2044061-A1 (CA)
Title: Epipodophyllotoxin glycosides
Inventor: OHNUMA TAKESHI
IPC: A61P35/00
Filed: 1991-06-06
Abstract: ABSTRACT      The present invention relates to novel antitumor compounds which are 4'-demethylepipodophyllotoxin derivatives.  More particularly, the novel compounds are 4'-demethylepipodophyllotoxin allopyranosides, allofuranosides, and mannopyranosides.
Patent CA-2045995-A1 (CA)
Inventor: MURASAKI RYUICHI
IPC: F16B21/08
Filed: 1991-06-28
Abstract: A surface fastener is dislosed for use in fastening a relatively rigid plate-like article (2) to a mounting base (3). The fastener is provided with a first flat base (1) which has surface fastener elements (11) on one face thereof, and a centrally disposed protrusion (13) projecting from the opposite face of the first flat base (1). The protrusion 13) reinforces the centre of the flat base (1) andis adapted to pass through an opening (31) in the respective mounting base (3). It carries the male member (12) of a snap-on hook mechanism for securement of the first flat base (1) to the mounting base (3) . The surface from which the protrustion (13) projects is provided, at opposed sides from the protrusion (13) and near the extremes of the flat base (1), with ribs (15) projecting therefrom in the same direction as the protrusion (13). Thus, by strategically determining the length of the snap-on male mechanism (12), a deformation of the first flat base (1) can be achieved to correspond to the curvature of the mating surface fastener (2) on a second relatively rigid plate (20) to secure a thorough interenagagement between the surface fastener elements (11, 21) secured to the first and second flat bases (1, 2).
Patent CA-2046354-A1 (CA)
Title: Method for producing fibrous preforms formed of superposed layers and having small radii of curvature, for the manufacture of composite material components
Inventor: CIAIS JEAN-PIERRE
IPC: B29C70/86
Filed: 1991-07-05
Abstract: IN  THE  C A N A D I A N  PATENT AND  TRADEMARK  OFFICE PATENT            APPLICATION            Entitled  : Method for producing fibrous preforms  formed  of superposed  layers and having small radii of  curvature,  for the manufacture of composite material components in the names of :  Jean-Pierre CIAIS                    Claude GRONDIN Jacques ADAN          Assignee :         SOCIETE EUROPEENNE DE PROPULSION     ABSTRACT OF THE DISCLOSURE   In a curved portion of the preform having a radius of curvature that is smaller than the thickness of the superposed layers (12), an insert (14) is introduced between two of the layers. The insert comprises a first curved surface (14a) having a first radius of curvature substantially equal to that of a surface of the layer adjacent an outer side of the preform, and a second curved surface (14b) having a second radius of curvature greater than the first radius of curvature and substantially equal to that of a layer adjacent an inner side of the preform.      Figure 2.
Patent CA-2047006-A1 (CA)
Title: Method of determining the drilling conditions associated with the drilling of a formation with a drag bit
Inventor: DETOURNAY EMMANUEL
IPC: E21B49/00
Filed: 1991-07-12
Abstract: This invention is based on a new model describing the drilling process of a drag bit and concerns a method of determining the drilling conditions associated with the drilling of a borehole through subterranean formations, each one corresponding to a particular lithology, the. borehole being drilled with a rotary drag bit, the method comprising the steps of: measuring the weight W applied on the bit, the bit torque T, the angular rotation speed .omega. of the bit and the rate of penetration v of the bit to obtain sets of data (W i, T i, .nu. i, .omega. i) corresponding to different depths;  calculating the specific energy E i and the drilling strength S i from the data (W i, T i, .nu. i, .omega. i); identifying at least one linear cluster of values (E i, S i), said cluster corresponding to a particular lithology; and determining the drilling conditions from said linear cluster. The slope of the linear cluster is determined, from which the internal friction angle .phi. of the formation is estimated. The intrinsic specific energy a of the formation and the drilling efficiency are also determined. Change of lithology, wear of the bit and bit balling can be detected.
Patent CA-2048103-A1 (CA)
Inventor: KIELLAND PETER J
IPC: F21S8/00
Filed: 1991-07-29
Abstract: ABSTRACT PORTABLE UNDERWATER SWIMMING POOL LIGHT A portable light fixture which illuminates the volume of water in a swimming pool to create a pleasing night-time appearance. The light source and all attendant electrical hardware are mounted above the water's surface to avoid the normal measures required to waterproof the light. Light from this element is projected downward into the water through a light shaft which which hangs over the edge of the pool and extends down below the water line. This combined light transmission shaft and light element enclosure is opaque to prevent any light escaping above the water line and detracting from the pool illumination effect. It also acts as a stilling well to calm the air/water boundary where the light rays enter the pool. The light shaft is vented to allow water to rise within itself to the same level as in the swimming pool. Light travels down the light shaft, traverses the air/water boundary and then exits the light shaft below the water line, These light rays then strike a reflective light diffuser suspended directly below the shaft exit. The light diffuser is conical in shape and vertically bisected. It spreads the beam away from the pool wall by reflecting the vertical rays exiting the light shaft into a horizontal fan pattern. Safe power to the lighting element is supplied via a standard commercially available ground fault protector or low voltage transformer located at a distance from the pool area. A non-standard connector on the line from the remote power supply insures that only safe power can be connected to the light apparatus.
Patent CA-2050329-A1 (CA)
Title: Method of treating viral infections using lfa-1
Inventor: SPRINGER TIMOTHY A
IPC: C12N15/09
Filed: 1990-03-09
Abstract: The invention features substantially pure recombinant .beta.-subunit of a human glycoprotein concerned with cellular adhesion, or a biologically active fraction thereof, an analog thereof, or a fragment thereof composed of at least 10 % of a contiguous sequence of the .beta.-subunit; a cDNA sequence encoding therefor; and a vector containing a DNA sequence encoding therefor. The invention also features any monoclonal antibody raised against the recombinant .beta.-subunit of human LFA-1 and a method of treating rhinoviral infections using LFA-1.
Patent CA-2050811-A1 (CA)
Title: Truck towing boom
Inventor: MAROLA MARTIN A
IPC: B62D53/08
Filed: 1991-09-06
Abstract: A boom assembly attaches to the fifth wheel of a tractor for towing a truck or other vehicle. The assembly has a main frame with a pair of uprights and a pair of pivotally mounted legs. The vehicle is secured at longitudinal spaced locations to the legs. Hydraulic cylinders are actuated to force the legs to a pivoted position which lifts the legs and the towed truck to an elevated position for towing.
Patent CA-2051921-A1 (CA)
Title: Oil extended ultra high molecular weight elastomers
Inventor: KANG JUNG W
IPC: C08L25/10
Filed: 1991-09-20
Abstract: Elastomer compositions comprising (A) ultra high molecular weight copolymer compositions of 1,3-conjugated dienes and aromatic vinyl compounds having a weight average molecular weight of greater than about 1,000,000 and (B) oil are described. The ultra high molecular weight copolymer compositions which are also characterized as having an intrinsic viscosity in tetrahydrofuran of at least about 4.0 may be obtained by a process which comprises polymerizing a 1,3-conjugated diene and a vinyl aromatic compound in a hydrocarbon solvent in the presence of a trimetalated 1-alkyne catalyst which comprises the reaction product of a 1-alkyne containing at least 4 carbon atoms, an organo metallic compound R°M and a 1,3-conjugated diene wherein R° is a hydrocarbyl group, M is an alkali metal, the mole ratio of R°M to 1-alkyne is about 3:1 and the mole ratio of conjugated diene to 1-alkyne is from about 2:1 to about 30:1. The oil extended elastomer compositions of the present invention preferably contain large amounts of oil such as 80 parts or higher per 100 parts of copolymer.
Patent CA-2053647-A1 (CA)
Title: Industrial asphalts
Inventor: MCGINNIS EDGAR L
IPC: C10C3/02
Filed: 1991-10-17
Abstract: ABSTRACT OF THE DISCLOSURE       Disclosed is a method of producing an industrial asphalt from a bituminous material.  One preferred embodiment com-prises mixing together without air-blowing:   a.   a feed material comprising a bituminous material having a viscosity of at least 50 centistokes at 350°F and wherein said feed material forms a single phase when mixed with 5 percent of 85 percent phosphoric acid; and b.   from about 0.1 to 20.0 percent by weight of phosphoric acid, said mixing being done at a temperature in the range of 351 to 600°F, whereby the softening point of the feed is substantially increased and the penetration is significantly decreased.   A second preferred embodiment comprises heating at an elevated temperature a mixture comprising:   l.  from about 0.1 to 20.0 percent by weight green phosphoric acid, and 2.  a bituminous material to make up 100 percent by weight, said bituminous material comprising asphalt.