baber/WOPTO huggingface dataset:
Patent CA-2035410-A1 (CA)
Inventor: NAKAYAMA JUNICHIRO
IPC: G11B11/10
Filed: 1991-01-31
Abstract: A surface of a magneto-optical recording medium is textured with fine physical protrusions and recessions. The shapes of the physical protrusions and recessions vary with radial location on the medium such that, for example, roughprotrusions and recessions are formed in inner parts of the recording medium andfine protrusions and recessions are formed in outer parts thereof. Therefore, a floating force provided in the outer parts to a floating head by the medium being rotated through an air layer using the constant-angular-velocity method is equal to a floating force provided in the inner parts. Consequently, since the floating height of the floating head becomes constant irrespective of radial location on the medium, information can be recorded under constant recording conditions, permitting the accuracy of the recording to be improved. In a method for processing the surfaceof a magneto-optical recording medium relating to the present invention, a texture tape with large roughness is used in inner parts of the medium while a texture tape with small roughness is used in outer parts thereof. As a result, a magneto-optical recording medium having the above characteristics is produced.
Patent CA-2038326-A1 (CA)
Title: Jet reduction discharge of dye color
Inventor: MCBRIDE DANIEL T
IPC: D06P5/15
Filed: 1991-03-14
Abstract: ABSTRACT OF DISCLOSURE      The process for producing patterns on ground dye colored textile fiber pile substrates, particularly wherein the pile fibers are in the form of yarns comprised predominately of polyamide fiber, and wherein at least some of the ground dye component is at least partially color dischargeable and selected from vat, reactive, direct, acid, premetallized or mordant dyes, the process comprising contacting selected portions of the colored pile fibers with a reducing system which optionally can contain one or more reduction resistant dye or pigment materials for in-situ coloring of the substrates, the contacting being characterized by jet forcing the reducing system interstitially of the pile fibers to deposit the reducing system thereon substantially below the surface thereof, and to effect the color discharge of at least a portion of the ground dye component.
Patent CA-2039419-A1 (CA)
Title: Pervaporation process for separating a lower alcohol compound from a mixture of a lower alcohol compound and an ether compound
Inventor: NAKATANI MASAYUKI
IPC: C07C29/76
Filed: 1991-03-28
Abstract: ABSTRACT OF THE DISCLOSURE    A lower alcohol compound is separated from a mixture of a lower alcohol compound and an ether compound by a pervaporation method comprising the steps of:  bringing a feed comprising an ether compound and a lower alcohol compound into direct contact with a feed face of a specific asymmetric separating membrane comprising an aromatic imide polymer which has 70 to 100 molar% of recurring units selected from those of the formulae (I) and (II)                 (I) and                 (II) wherein R = divalent aromatic group having two or more benzene rings and X = -S-, -SO2-, -CO-, -O-, -C(CH3)2-, -CH2- and -C(CF3)2-; exposing a delivery face Opposite to the feed face of the membrane to a pressure-reduced atmosphere to cause the lower alcohol compound to selectively permeate through the membrane and to be then vaporized at the delivery face side, and collecting the lower alcohol compound at the delivery face side of the membrane.
Patent CA-2042286-A1 (CA)
Title: Cased telescoped ammunition round
Inventor: MARTWICK WILFORD E
IPC: F42B5/045
Filed: 1991-05-10
Abstract: ABSTRACT OF THE DISCLOSURE A cartridge case 64 for a cased telescoped ammunition round 10.  Cartridge case 64 includes a casing 12 having inwardly tapering conical end portions 14, 16 and end seals 20, 22 which undergo elastic deformation when round 10 is fired from a gun.  A plurality of spring fingers 62 are formed on portions 14, 16.  Conical portions 14, 16 fit into seals 20, 22. Casing 12 is secured to seals 20, 22 by the tips 66 of spring fingers 62 fitting into catch grooves 56, 56' of seals 20, 22.  A control tube 24 is secured to rear seal 20 and a primer 30 is mounted in control tube 24. Projectile 26 is mounted within round 10 with its piston 28 located within control tube 24.  Main propellant charge 36 is positioned around control tube 24 and round 26.  A booster charge 32 is positioned with control tube 24.  Axial growth of casing 12 compresses spring fingers 62 retract end seals 20, 22 after firing.  Radial expansion of cartridge case 64 is accommodated by elastic deformation of the casing.
Patent CA-2042852-A1 (CA)
Inventor: CHEN MICHAEL S
IPC: C01B13/02
Filed: 1991-05-17
Abstract: Un procédé est offert pour purifier l'argon, et particulièrement un courant d'argon obtenu par séparation cryogénique de l'air, où l'argon est chauffé et comprimé, puis soumis à une perméation à travers une membrane électrolytique solide sélective pour l'oxygène de préférence à d'autres constituants du gaz, et par élimination de l'oxygène de l'argon par perméation sélective de l'oxygène à travers la membrane. L'argon purifié peut alors être distillé pour enlever les autres constituants comme l'azote.
Patent CA-2042912-A1 (CA)
Title: Oxygen recovery from turbine exhaust using solid electrolyte membrane
Inventor: CHEN MICHAEL S
IPC: B01D53/22
Filed: 1991-05-21
Abstract: ABSTRACT   A process is provided for extracting high purity oxygen from gas turbine exhaust streams by passing the gas turbine exhaust over the feed side of solid electrolyte membrane selective to the permeation of oxygen over other components of the exhaust stream to separate the oxygen from the exhaust stream, and removing the oxygen product stream from the permeate side of the membrane.
Patent CA-2044170-A1 (CA)
Title: Breathable backing
Inventor: SABLOTSKY STEVEN
IPC: A61F13/02
Filed: 1990-01-10
Abstract: ABSTRACT A composition comprising a flexible backing for a transdermal drug preparation with a water vapor transmission rate about equal to or in excess of that of ethylene vinyl alcohol copolymer, namely equal to or in excess of, at one mil thickness, of about 2 to 4 grams and more preferably in excess of 6 grams per 29  hours  per  100  square  inches  at  40°C  and  90% relative  humidity  and  an  oxygen  transmission  rate equal  to  or  less  than  ethylene  vinyl  alcohol copolymer,  namely at one mil thickness equal to or less than about 0.01 to 0.1 cubic centimeters per 100 square inches measured over 24 hours at 1 atmospheric pressure, 20°C and 65% relative humidity.     Patent/M/19SM/03-10-90
Patent CA-2044445-A1 (CA)
Inventor: BOURUETAUBERTOT ALAIN
IPC: B01J23/02
Filed: 1991-06-12
Abstract: La présente invention concerne un matériau à matrice poreuse contenant un second élément sous forme dispersée et son procédé de fabrication. Le matériau comprend une matrice poreuse constituée en au moins un oxyde d'élément métallique contenant de manière dispersée des particules d'oxyde d'au moins un second élément métallique et se caractérise en ce que les particules dudit second élément métallique présente une augmentation de leur dimension moyenne égale au plus à 1000% entre la dimension moyenne de ces particules après un traitement thermique à 350.degree.C pendant 4 heures et celle des particules après un traitement thermique à 1100.degree.C pendant 4 heures.
Patent CA-2047535-A1 (CA)
Title: Panel, clip and method of mounting panel
IPC: E04B2/74
Filed: 1991-07-22
Abstract: A panel assembly includes a resiliently deflectable panel and a plurality of retainer clips. The panel includes a relatively thick rectangular base section and a relatively thin rectangular lip section which extends outwardly from the periphery of the base section.  The retainer clips are connected with the base section and cooperate with the lip section of the panel to engage a support structure to hold the panel in place.  To mount the panel in the support structure, the panel is resiliently flexed.  The panel is then released and its natural resilience causes a retainer clip to engage the support structure to hold the panel against movement relative to the support structure.  A disengagement tool may advantageously be inserted between the panel and the support structure to apply force against the retainer clip and to resiliently flex the panel to disengage the retainer clip from the support structure.
Patent CA-2048087-A1 (CA)
Title: In-situ emulsion polymerization of polyethylene derivatives
Inventor: PHELPS CRAIG H
IPC: E21B43/26
Filed: 1991-07-29
Abstract: ABSTRACT        A profile control method for closing off a more permeable zone of a formation where water, high fluid flow, or high pressures are encountered.  A water-external emulsion containing a monomer, a cross-linker, free radical initiators and reaction inhibitors is injected into the formation.  There they react to form plastic-like solid spheres in the more permeable formation zone.  Because the spheres are not water soluble and have high compressive strength, they can be used in severe flow applications. Ethylene, propylene and styrene monomers, for example, can be utilized to form solid spheres of polyethylene, polypropylene or polystyrene.
Patent CA-2049751-A1 (CA)
Title: Fishing reel
Inventor: STEVENSON DAVID L
IPC: A01K89/015
Filed: 1991-08-23
Abstract: 69738-?     ABSTRACT         This invention is directed to a fishing reel which includes a casing equipped to be mounted on a fishing rod and a spigot-like formation extending from the casing in a direction substantially normal to a longitudinal axis of the fishing rod.          The spigot-like formation is rotatably mounted about a shaft which in turn is rotatably mounted in the casing.  A spool, mounted on the spigot-like formation, is rotatable with the spigot-like formation.  Control means are mounted within the casing for controlling the operation of the spigot-like formation.
Patent CA-2057661-A1 (CA)
Title: Pet vacuum comb
Inventor: EREMITA NUNZIO A
IPC: A47L5/24
Filed: 1991-12-13
Abstract: ABSTRACT OF THE DISCLOSURE     This vacuum comb is designed to quickly remove flees, ticks, other insects, loose hair, and debris from a pet's coat.  The device utilizes a housing having spaced apart tines on the front open end for loosening the fleas, ticks, other insects, loose hair and other debris, so as to enable the vacuum produced by the device to pull same into a debris collecting compartment in a removable canister of the device.          The housing further includes a motor with a fan blade on its interior for producing the vacuum and an air cooling tube is attached to one end of the motor and extends through the handle grip of the device to a filter, for drawing in atmospheric air to efficiently cool the motor.
Patent CA-2057911-A1 (CA)
Title: Method of establishing communication between independent communication system
Inventor: COMROE RICHARD A
IPC: H04B7/14
Filed: 1990-04-19
Abstract: In one embodiment, independent communication systems (101 and 102) are provided with additional receivers (112 and 113) that allow the systems to monitor one anothers' outbound control signalling channels. Secondary control signalling (204) can be interleaved with the primary control signalling (201) information on this communication resource, which secondary control signalling information is intended for reception and use by the monitoring system. In another embodiment, communication systems (301 and 302) having dedicated communication resources are provided with receivers (311 and 316) that monitor the communication resources of other communication systems. Communications between communication units (321 and 323) in various systems are interchanged through appropriate interaction of the repeaters and the dedicated receivers so provided. In another embodiment, communication systems (401 and 402) having dedicated communication resources are provided with receivers (416) that monitor the communication resources of other communication systems, and roamers (423) are preregistered (431) in non-home systems. Using this infrastructure, a group call can be sourced in one system and relayed to roamers located in other systems.
Patent CA-2058076-A1 (CA)
Title: Styrene/maleates terpolymers
Inventor: LEE KANG I
IPC: C08L25/06
Filed: 1991-12-19
Abstract: Terpolymers of styrene, mono-iso-butyl maleate and mono-2-(n-butoxy)ethyl maleate wherein the ratio of styrene units to maleate units is in the range of about 1:1 to about 1.6:1 and the ratio of mono-iso-butyl maleate units to mono 2-(n-butoxy)ethyl maleate is in the range of about 3:2 to about 1:3.  The terpolymers are useful as alkali soluble binders for photoresist compositions.
Patent CA-2064046-A1 (CA)
Inventor: KAPER JAMES B
IPC: C12N1/21
Filed: 1991-06-05
Abstract: This invention relates to methods of isolating deletion mutants of Vibrio cholerae. In one method, the deletion is predetermined by digestion with restriction endonucleases of known specificity. The deletions are inserted into the Vibrio cholerae chromosome by in vivo recombination between a plasmid carrying the desired deletion, with adjacent flanking sequences, and the Vibrio cholerae chromosome. In another method, an initial in vivo recombination event of homologous sequences from the recombinant plasmid into the chromosome provides a selectable marker at this site. A second in vivo recombination event between homologous flanking sequences results in excision of proficient genes from the chromosome with the end product being a deletion mutation. The invention includes the isolation and characterization of a new Vibrio cholerae strain having a deletion in the ctx gene, as defined by Acc I, Xba I, Cla I and/or restriction endonuclease sites and further having a deletion in the gene encoding zonula occludens toxin.
Patent CA-2066305-A1 (CA)
Title: Oligosaccharide having affinity for fibroblast growth factor and process for producing same
Inventor: HABUCHI HIROKO
IPC: C08B37/00
Filed: 1992-04-16
Abstract: ABSTRACT OF THE DISCLOSURE       An oligosaccharide having an affinity for fibroblast growth factor, which is composed of 8 to 18 monosaccharide residues, wherein a principal disaccharide unit comprising L-iduronic acid 2-sulfate and N-sulfo-D-glucosamine and a process for producing the oligosaccharide comprising digesting haparan sulfate.
Patent CA-2067175-A1 (CA)
Title: Line connection device with protection function to protect against overvoltage and overcurrent
Inventor: KURASAWA KOUICHI
IPC: H02H9/04
Filed: 1990-08-14
Abstract: This invention relates to a circuit connection device having overvoltage/overcurrent protection function for communication equipments which can eliminate an overvoltage and an overcurrent. In order to protect communication equipment from overvoltage and overcurrent, a surge absorption element (2) is connected in parallel with terminals for connecting the equipment, and a metal wire (3) having a low melting point is connected in series with them in the proximity of the surge absorption element (3). The communication equipment is protected from surges between the lines of the communication equipment and between the lines and the ground by the surge absorption element and from continuous overvoltage and overcurrent by the low-melting metal wire because the surge absorption element is overheated and the metal wire blows out by the heat.
Patent CA-2068217-A1 (CA)
Inventor: MIETTINEN LAURI
IPC: B27B25/02
Filed: 1990-11-13
Abstract: An apparatus for guiding a piece of timber, especially a block (2) to be machined in a chipper canter. A chain conveyor (10) for conveying the block is provided in front of the chipper canter and at least one press roll (24, 26), for pressing the block against the chain conveyor. Between the chain conveyor and the chipper canter, there is a raisable and lowerable feed roll (14) which in its lower position is below the level of the chain conveyor and in its raised position is above said level. At an appropriate distance in front of and behind the chipper canter, there is a pair of side rollers (48, 50) the rollers of which (52, 56, 54, 58) can be pressed against the sides of the block in such a way that they center the block or move freely in the lateral direction.
Patent CA-2068249-A1 (CA)
Inventor: SCHMUHL JAMES M
IPC: A61G1/04
Filed: 1992-05-08
Abstract: A medical support system comprises a pole for supporting intravenous related medical equipment.  The pole has two different diameters to enable it to be interchangeably inserted into a wheeled stand, a wheelchair bracket, and a gurney cart socket.  A stop in the stand limits insertion of the pole into the stand, and a locking knob locks the pole to the stand.          The pole and the stand are designed to enable the pole to be inserted into and removed from the stand under normal ceilings without having to tip the stand.  The wheelchair bracket receives and locks the pole in a manner similar to the stand.  The medical support system enables a patient connected to the intravenous related medical equipment to be transported in a wheelchair or gurney cart without also having to transport the stand.
Patent CA-2068389-A1 (CA)
Title: Method for inhibiting bone resorption
Inventor: SATO MASAHIKO
IPC: A61P43/00
Filed: 1992-05-11
Abstract: TITLE OF THE INVENTION NEW METHOD FOR INHIBITING BONE RESORPTION            ABSTRACT OF THE DISCLOSURE         Disclosed is a new method for treating bone disease in mammals, which is associated with increased bone resorption activity (dissolution or breakdown), and involves the new use and administra-tion of known bone acidic glycoproteins 75 (BAG 75), having a molecular weight of 75kDa as determined by SDS-PAGE, or the 50kDa (SDS-PAGE) fragment thereof, wherein BAG 75 contains an N-terminal sequence of:                               , (SEQ. ID NO. 1), (LPVARYQNTEEEE). The method is applicable and indicated for osteoporosis, Paget's disease, hyperparathyroidism, hypercalcemia of malignancy, osteopenia due to bone metastases, bone loss due to immobilization, sex hormone deficiency, glucocorticoid treatment, periodontal disease, and periarticular erosion in rheumatoid arthritis.
Patent CA-2073197-A1 (CA)
Title: Preparing refractory articles by a freezecast process
Inventor: SUEY PAUL V
IPC: B28B1/00
Filed: 1992-07-06
Abstract: Refractory articles are prepared by a freezecast process where a ceramic fiber mat is saturated with a colloidal silica aqueous suspension, frozen and then heated to produce a preform. The preform is then saturated with a colloidal silica aqueous suspension, frozen, and then heated to produce a refractory article having silica particles substantially uniformly distributed throughout. The density of the refractory article can be increased by compression of the saturated mat prior to freezing.
Patent CA-2074450-A1 (CA)
Inventor: STAUFFER WILLIAM O
IPC: C05D1/02
Filed: 1992-07-22
Abstract: Scrap aluminum is reclaimed by a salt flux-based reclamation process using potassium chloride in place of the commonly used sodium chloride. The spent flux which remains after the recovery of the aluminum is useful as a soil fertilizer, with the potassium content of the flux serving as a source of potassium nutrient for the soil.  The potassium in the spent flux is highly water soluble at all values of pH while the aluminum in the spent flux remains at a limited solubility, particularly under the conditions expected to be encountered in soil.  Thus, despite the known phytotoxicity of aluminum and the presence of aluminum in the spent flux, the spent flux is discovered to be useful as a plant fertilizer with the maximum benefit from the potassium and minimal if any harm from the aluminum.
Patent CA-2074813-A1 (CA)
Title: Optical amplifier
Inventor: HEIDEMANN ROLF
IPC: G02F1/39
Filed: 1991-12-19
Abstract: ABSTRACT     OPTICAL AMPLIFIER          Known optical amplifiers, which are used in a light transmis-sion path to amplify the light signals to be transmitted, have the disadvantage that the semiconductor lasers, used as pump lasers therein, are very sensitive to feedback.            According to the invention, the operating current of such pump lasers (4) is modulated at a high frequency, which causes the pump laser to operate in a multi-mode, thereby making it in-sensitive to feedback.  For example, the operating current is DC, on which AC is superimposed.            In the event the optical amplifier has two pump lasers, their operating current is also modulated.  Both pump lasers are then advantageously alternately switched on and off at a suf-ficiently high switching frequency, which also prevents recip-rocal interference.            Figure 1.
Patent CA-2076325-A1 (CA)
Title: Double-wrap brake band assembly
Inventor: GRZESIAK ANTHONY J
IPC: F16D49/02
Filed: 1992-08-18
Abstract: Abstract of the Disclosure An improved double-wrap brake band is disclosed wherein the bracket member (16) consisting of an apply bracket (20), a reaction bracket (22), and a connector bracket (24) are secured to three generally parallel bands (12A, 12B, 12C). The bands (12A, 12B, 12C) include a plurality of position oriented slots (36) designed to accept extruded tabs (44) extending from the bracket member (16). The tabs (44), after clinching, serve to retain the bracket member (16) securely on the bands (12A, 1213, 12C).
Patent CA-2077319-A1 (CA)
Inventor: CLAY ANTHONY J
IPC: G09F7/14
Filed: 1992-09-01
Abstract: ABSTRACT            The invention is concerned with means and method for providing re-usable displays of the type that are formed of alphanumeric characters and are usable in shop windows and the like.  Each character can be formed from a number of like elements and strips thereof, the elements being in the form of elongate rectangles having chamfered or tapered or rounded end portions and the elements and/or strips being made from or coated with a material which allow them to be peeled from the display surface for subsequent re-use.            Figure 7
Patent CA-2077415-A1 (CA)
Inventor: MCLENNAN WILLIAM R
IPC: F16L29/00
Filed: 1992-09-02
Abstract: A rotary valve has a wiper member formed from an elastomeric   material,   the   wiper   member   extending circumferentially of the valve seat, and, in an unstressed condition of the wiper member, extending radially inwardly of said valve seat,  the wiper member being operatively positioned for it to wipe clean an outer circumferential surface of the valve member as the valve member is moved from an open position to a closed position, the wiper member being supported for limited movement relative to the valve seat, whereby, upon stressing of the wiper member by the valve member, the wiper member can retract into the valve seat.
Patent CA-2077799-A1 (CA)
Title: Clamp for crushing a main, such as a gas pipe
Inventor: BRUGALIERES LOUIS-BERNARD
IPC: B25B7/02
Filed: 1992-09-09
Abstract: ABSTRACT         Clamp comprising a first and second articulated jaws (3, 5) each having an inner surface (29, 31) formed facing each another.        According to the invention,  in the closed or substantially closed position of the clamp, the inner surfaces  (29,  31)  of the jaws define between them a clamping profile in the shape of an elongate and curved slot, for example "V"-shaped, with an intermediate space (33).        Application to the local crushing of a main in order to stop the flow therein.        Figure 2.
Patent CA-2078440-A1 (CA)
Inventor: BUHL NANCY
IPC: H04W68/00
Filed: 1991-04-26
Abstract: A mobile communications system in which a mobile subscriber may roam includes a number of exchanges having coverage areas in which the mobile subscriber may roam.  An interrogation exchange receives incoming calls to the mobile subscriber and requests information as to the location of the mobile subscriber from its home exchange.  The home exchange includes a list of a plurality of possible exchanges in which the mobile subscriber may be located which is used to supply information  as  to  the  location  of  the  mobile subscriber.     The  home  exchange  initiates   and coordinates the paging process and reacts according to the outcome of this process.