baber/WOPTO huggingface dataset:
Patent CA-2032216-C (CA)
Title: Method for avoiding call blocking
Inventor: SZLAM ALEKSANDER
IPC: H04M3/51
Filed: 1990-12-13
Granted: 1993-05-18
Abstract: METHOD FOR AVOIDING CALL BLOCKING            Abstract Methods for avoiding a call blocking feature. In a first method a list is kept for the trunks previously used to call a particular telephone number. Each time that particular telephone number is called a different trunk, not on that list, is used to place the call. The list is cleared and restarted whenever all the trunks have been used. In a second method a list is kept for trunks for which a call blocking message has been received when an attempt was made to call that telephone number. Each time that particular telephone number is called a trunk which is not on that list is used to place the call. Only non-blocked trunks are used to call a telephone number.
Patent CA-2032601-C (CA)
Title: Method for polymerizing vinyl chloride while inhibiting adhesion to the polymerization reactor
Inventor: MASUKO SEIICHI
IPC: C08F14/06
Filed: 1990-12-18
Granted: 1996-11-12
Abstract: A method for polymerizing vinyl chloride comprises polymerizing vinyl chloride in an aqueous medium or bulk-polymerizing vinyl chloride, wherein the inner wall of a polymerizer and parts of devices which come in contact with the monomer during the polymerization are coated, prior to the polymerization, with a reaction product having a molecular weight ranging from 500 to 100,000, obtained by condensing a polyhydric phenol and sulfur dichloride in the presence of a Lewis acid as a catalyst. The amount of the polymer adhered to the polymerizer during polymerization of vinyl chloride is substantially lowered and the adhered polymer can be easily washed away through simple water washing according to the foregoing method. Moreover, the method does not adversely affect the reaction time and the quality of the resulting product at all.
Patent CA-2033986-C (CA)
Title: Folding crate for holding packages
Inventor: MAROVSKIS HARIJS B
IPC: B65D21/032
Filed: 1990-06-18
Granted: 1995-07-18
Abstract: A folding crate includes a bottom having a substantially planar support surface for receiving packages, a first side wall and a second side wall. A fist hinge arrangement is provided for hin-gedly connecting the first side wall to the bottom and a second hinge arrangement is provided for hingedly connecting the second side wall to the bottom. The hinge arrangements permit the first and second side walls to be folded inwardly toward the bottom when packages are not locat-ed in the crate. The hinge axis of the first and second hinge arrangements are posi-tioned at elevationally different positions to that the first and second side walls can be folded inwardly toward the bottom and positioned substantially parallel to one another.
Patent CA-2034811-C (CA)
Title: Selective processes for fosinopril polymorphs
Inventor: GROSSO JOHN A
IPC: A61K31/66
Filed: 1991-01-23
Granted: 2001-04-03
Abstract: Described herein is a process for selectively preparing and interconverting polymorph salts of fosinopril, an antihypertensive agent that inhibits angiotensin converting enzyme. Each polymorph is prepared by mixing an alkali metal carrier, fosinopril, water and a keto and/or hydroxylic solvent and isolating the polymorph formed from the reaction mixture. The less exothermic polymorph A is formed when the water makes up more than about 0.2% of the water and solvents; at about 0.2% or less, the more exothermic polymorph B is formed.
Patent CA-2035039-C (CA)
Title: Recombinant poxvirus and streptococcal m protein vaccine
Inventor: FISCHETTI VINCENT A
IPC: C12N15/63
Filed: 1990-06-21
Granted: 2000-02-01
Abstract: Viruses of the family poxviridae such as vaccinia or fowlpox viruses are modified to contain a gene which expresses a protein corresponding to the conserved exposed region of the M6 protein. The modified products are useful as vaccines against streptococcal infection.
Patent CA-2035161-C (CA)
Inventor: LE ROUX JEAN-YVES
IPC: G07F7/08
Filed: 1991-01-29
Granted: 1997-02-04
Abstract: Le procédé de gestion de transactions dans un système comportant des lecteurs de cartes et les cartes à microcircuit associées,consiste à organiser la mémoire des cartes destinée à l'enregistrement des transactions en deux zones, une zone accessible par présentation du code porteur à chaque transaction,pour les transactions de montant supérieur à une valeur prédéterminée, l'autre accessible pour les transactions de montant inférieur à la valeur prédéterminée, sans présentation systématique du code porteur: une présentation du code porteur commande l'écriture de bits d'ouverture d'espaces d'enregistrement dans cette deuxième zone jusqu'à ce que le nombre d'espaces ouverts soit égal à N prédéterminé. L'invention s'applique, notamment aux cartes de crédit, aux cartes de téléphone, et aux cartes multiusages.
Patent CA-2039416-C (CA)
Title: Geometric vector quantization
Inventor: JAYANT NUGGEHALLY SAMPATH
IPC: H04N19/94
Filed: 1991-03-28
Granted: 1996-09-03
Abstract: A method of coding a set of multi-level signals that includes exhaustively comparing the set with each of a number of vectors to determine a set of difference metrics. A vector is selected that minimizes the difference metric, and a coded representation is then generated based on the selected vector. Each one of the vectors includes a geometric array of one or more elements having a respective magnitude. The metrics reflect at least two magnitudes of the elements of the geometric array. The coded representation is generated only when the differencesbetween respective pairs of magnitudes exceed corresponding threshold values. The coded representation is a null coded representation whenever the differences between respective pairs of the magnitudes do not exceed the threshold value. This technique can be used in the context of a full motion video coder based on a three-dimensional sub-band framework.
Patent CA-2042381-C (CA)
Title: Polysaccharide resolving gels and gel system for stacking electrophoresis
Inventor: NOCHUMSON SAMUEL
IPC: B01J19/08
Filed: 1990-01-16
Granted: 1997-05-06
Abstract: Electrophoretic resolving gel compositions, discontinuous stacking gel systems containing these and other resolving gel compositions, and kits for preparing such gel systems, comprising one or more polysaccharide hydrogels of which agarose is typical wherein at least one of the gels in the resolving gel composition has been derivatized and at least one of the gels in the resolving gel composition has been depolymerized sufficiently to reduce its casting-effective viscosity.
Patent CA-2044310-C (CA)
Title: Piperidine-triazine co-oligomers for use as stabilizers for organic materials
Inventor: BORZATTA VALERIO
IPC: C08K5/3492
Filed: 1991-06-11
Granted: 2001-04-24
Abstract: The present invention relates to novel co-oligomers containing recurring units of the formulae (Ia} and (Ib) (see formula I) ,  (see formula II) which have a molecular weight of e.g. from 1,000 to 5,000 and a (Ia):(Ib) ratio of e.g. 1:1, and in which R1 and R5 are e.g. N-(2,2,6,6-tetramethyl-4-piperidyl)-n-butylamino, R2 is e.g. 2,2,6,6-tetramethyl-4-piperidyl, R3 is e.g. hexamethylene, R4 is e.g.  hydrogen and X is e.g, a group (see formula III) These compounds are particularly suitable for stabilizing organic materials against light, heat and oxidation.
Patent CA-2047196-C (CA)
Title: Fabry-perot modulator
Inventor: WHITEHEAD MARK
IPC: G02F1/21
Filed: 1990-02-22
Granted: 1996-05-21
Abstract: An asymmetric Fabry-Perot modulator comprises a multiple quantum well (MQW) p-i-n diode (8, 10, 12) defined by a front surface of reflectivity 0.3 and back surface of reflectiv-ity 0.95. The cavity length L is such that reson-ance occurs close to the long wavelength side of the unbiased MQW absorption edge so that application of a bias signal to the MQW (12) causes the reflectivity of the cavity to become close to zero. This arrangement provides a high contrast modulator less sensitive to tem-perature variations and deviations from ideal reflectivities of the front and back surfaces than high-finesse Fabry-Perot modulators.
Patent CA-2052784-C (CA)
Title: Co-rotational scroll apparatus with optimized coupling
Inventor: UTTER ROBERT E
IPC: F01C17/06
Filed: 1991-10-04
Granted: 1995-08-22
Abstract: In a co-rotational scroll apparatus having two interleaving scroll wraps secured to end plates rotating about parallel, non-concentric axes to produce a relative orbital motion, a coupling for causing concurrent rotation and for enhancing the nutational stability of the scroll element.  In the preferred embodiment, the nutation reducing means is comprised of an Oldham-type coupling engaging extension members on one of the scroll end plates and drive keys on the other respective end plate.  The angular disposition thereof is optimized to cause the Oldham coupling to generate during rotation a moderating moment load in opposition to the tipping moment load of at least one of the scroll elements and thereby enhance the nutational stability of the scroll elements.  The moderating moment load of the coupling imposed on the scroll elements may be altered by varying the angular and radial disposition of the center of gravity of the coupling.
Patent CA-2055678-C (CA)
Title: Blood extraction device
Inventor: SARSTEDT WALTER
IPC: A61B5/15
Filed: 1991-11-15
Granted: 1997-06-17
Abstract: A blood extraction device comprising a cannula, the front end of which can be pushed into the vein of a patient and the rear end of which opens into an inner tube which is located in the interior of a sample tubule that is hermetically closed at its rear end and closed at its front end apart from a vent. The inner tube is secured in the blood extraction position against withdrawal from the sample tubule by a cap with a releasable axial blocking means, preferably by a screw cap. A puncturable and self-closing membrane is mounted in the front part of the cap and in the blood extracting position sealingly closes the inner tube at its front end and simultaneously presses the inner tubewithout play against an abutment in the sample tubule. The inner tube and the closure cap are so connected to one another by means of a tow connection that, during axial removal of the cap from the sample tubule, the seal between the membrane and the inner tube is first cancelled and the inner tube is only subsequently moved with the cap.
Patent CA-2057623-C (CA)
Title: Freezer with means preventing the formation of frost
Inventor: HANNIBALSEN FOLMER OSVAL
IPC: F25D21/04
Filed: 1991-12-13
Granted: 1999-05-04
Abstract: The storing space of a freezer (10) communicates with a flexible bag (30) arranged on the outside of the freezer. The bag takes up the volume changes which the air in the space goes through as a consequence of normal temperature oscillation of cooling surfaces (14) in the space. By this, the humidity of ambient air is prevented from being sucked into the space past the lid or door sealing (20) of the freezer and form frost on the cooling surfaces (14).
Patent CA-2059532-C (CA)
Title: Charge director compositions for liquid developers
Inventor: ALMOG YAACOV
IPC: G03G9/135
Filed: 1990-07-24
Granted: 2002-10-15
Abstract: A liquid developer system for use in electrostatic imaging processes of the positive toner type comprises toner particles micro-dispersed in a carrier liquid and at least one charge director compound soluble in the carrier liquid, wherein the total amount of charge director compound is associated with the toner particles and essentially no charge director compound is present in the carrier liquid. Especially useful charge director compounds are those which have been reacted with at least about one molar equivalent of at least one acid containing at least one organic moiety, the acid being effective in that the reacted positive charge director compound increases the short-term charging of the micro-dispersed toner particles as compared with charging when the same molar amount of unreacted charge director compound is used. Positive charge director compounds reacted with acid are e.g. those of the general formula RSiX3 wherein R is a hydrocarbon radical, one or more of the hydrogen atoms of which may be substituted by halogen atoms, and X is halogen or lower alkoxy; the reaction products with acid of the compounds RSiX3 are believed to be novel.
Patent CA-2062256-C (CA)
Title: Safety baseboard molding for concealing indoor domestic wiring
Inventor: MANARAS GEORGE
IPC: H02G3/10
Filed: 1992-03-04
Granted: 1995-09-12
Abstract: A   decorative   baseboard   molding   for concealing the wiring of an appliance comprises an elongated retainer clip mounted to a wall and an elongated cover removably mounted to the retainer clip.  The retainer clip and the cover define, when assembled,  an  elongated  channel  which  receives therein the wiring.  A top wall of the retainer clip defines horizontally spaced apart openings through which  the wiring  can be passed.   Therefore,  the wiring  of  the  appliance  is  laid  in  the  channel between a first and a second of the openings thereof located adjacent the appliance and the wall outlet. The molding also includes a wall outlet cover which is adapted to be mounted to the wall while encasing therein  the  mural  plate  and  the  plug  of  the appliance.    A  vertical  hollow  sleeve  is  mounted against the wall between the wall outlet cover and the elongated channel defined by the assembly of the retainer clip with the cover.  The wall outlet cover prevents, for instance, children from accessing the electrical plugs  of the  appliances  and pets  from chewing on the wiring thereof.
Patent CA-2077305-C (CA)
Title: Key for electronic and mechanical locks
Inventor: HYATT RICHARD G JR
IPC: G07C9/00
Filed: 1991-02-28
Granted: 1996-03-26
Abstract: ABSTRACT OF THE DISCLOSURE     A hybrid key for operating both electronic and mechanical locks has the electrical components in a separate and removable housing which is normally secured to the bow portion of the key blade but may be removed, the disclosed means for securing the electrical housing to the key bow is via a configuration including grooves in the housing, a hook portion on the key bow, and holes through the housing and bow at a single point for rivet securing means.
Patent CA-2082281-C (CA)
Title: Perfume composition
Inventor: BEHAN JOHN M
IPC: A61K8/33
Filed: 1992-11-06
Granted: 1999-02-23
Abstract: A perfume composition contains at least 50% by weight of materials which fall into five categories defined by structure, and molecular weight.  Amounts of material within each category fall within specified ranges of percentage of the whole composition.  Two categories, ethers and salicylates, must be present.  At least two of the remaining three categories, which are alcohols, acetate/propionate esters and methyl aryl ketones, must also be present.      The compositions enable good levels of deodorant activity to be achieved along with consumer-acceptable fragrance.
Patent CA-2083015-C (CA)
Title: Hockey puck
Inventor: MAHOOD HARRY JOHN
IPC: A63B67/14
Filed: 1992-11-16
Granted: 1996-04-30
Abstract: A hockey puck comprises a circular body formed of resilient material with flat, parallel, upper and lower surfaces.  A central aperture extends through the body of the puck and tapers outwardly from approximately the mid point of the thickness of the puck towards the upper and lower surfaces.
Patent CA-2085706-C (CA)
Title: Process for producing a lactone or an ester
Inventor: MURAHASHI SHUN-ICHI
IPC: C07J73/00
Filed: 1992-12-17
Granted: 2003-09-23
Abstract: A process for producing a lactone or an ester represented by the following general formula (2), wherein R1 and R2, identical or different, each represents (C1-C20) alkyl group; alkyl group substituted with a terminal alkenyl, halogen, alkoxy, phenoxy or acyloxy; phenyl group; or phenyl group substituted with alkyl, halogen, alkoxy, phenoxy or acyloxy; phenylalkyl group; or phenylalkyl group substituted with alkyl, halogen, alkoxy, phenoxy or acyloxy; provided that when R1 and R2, identical or different, each represents unsubstituted alkyl group or alkyl group substituted with a terminal alkenyl, halogen, alkoxy, phenoxy, acyloxy or phenyl, the respective alkyl parts of R1 and R2 may be conjunct to each other; which comprises reacting a ketone represented by the following general formula (1), wherein R1 and R2 are as defined above, with oxygen in the presence of an aldehyde either in the absence of catalyst or in he presence of a heterogeneous iron-containing or ruthenium-containing catalyst:      The above-mentioned process of this invention is an advantageous process for producing lactones or esters by the oxidation of ketones with oxygen either using no catalyst or using a readily available and recoverable catalyst.
Patent CA-2090275-C (CA)
Title: Ice hockey skate
Inventor: GRAF KARL
IPC: A63C1/32
Filed: 1993-02-24
Granted: 1998-06-30
Abstract: The blade of an ice hockey skate, which blade consists of a plastic material blade body and a runner body made of metal, must be exchanged from time to time due to damages suffered. Until now this was a quite in-trinsic procedure and the exchanging had to be made at the manufacturer of the ice hockey skate because the blade is mounted to the boot by tubular rivets. Here, the blade is mounted to the shoe by means of such nut and bolt mounting devices which are in a position to take up the considerably higher loadings encountered at ice hockey skates in comparison with figure skating or ice dancing ice skates. The nut of the mounting device is a special structural member which is separate from the shoe sole and consists preferably of a metal.
Patent CA-2092652-C (CA)
Title: Antiherpes peptide derivatives having a ureido n-terminus
Inventor: DEZIEL ROBERT
IPC: A61K8/00
Filed: 1993-03-12
Granted: 2001-07-24
Abstract: Disclosed herein are peptide derivatives of the formula A-B-NHCH{CH2C(O)R1}C(0)-NHCH{CR2(R3)COOH}C(O)-D wherein A is a terminal group, for example, an alkylaminocarbonyl or a phenylalkylaminocarbonyl;      B is an amino acid residue; R1 is alkyl, cycloalkyl or a disubsubstituted amino; R2 is hydrogen or alkyl and R3 is alkyl, or R2 is hydrogen and R3 is phenylalkyl, or R2 and R3 are joined to form a cycloalkyl; and D is a terminal unit, for example, an alkylamino or a monovalent amino acid radical such as NHCH(alkyl)C(O)OH. The derivatives are useful for treating herpes infections.
Patent CA-2092700-C (CA)
Title: Method and device for attaching an object to a lightweight-construction wall
Inventor: GRUEN JUERGEN
IPC: F16B37/04
Filed: 1991-10-07
Granted: 1995-03-21
Abstract: In order to fix a screw-in insert with a self-tapping external thread into a lightweight-construction wall, the invention uses an insertion tool with a driver blade which is inserted into a cavity inside the screw-in insert, passing through the insert and emerging at the far end.  The part of the driver blade which projects out at the far end of the insert forms a rough drilling, into the walls of which the thread of the insert cuts as the insert is pushed in by the tool.
Patent CA-2094481-C (CA)
Title: Processes for the preparation of amylase inhibitor
Inventor: MIYAZAKI TOSHIYUKI
IPC: A23L29/00
Filed: 1993-04-20
Granted: 2002-10-29
Abstract: A process for the preparation of an amylase inhibitor is disclosed which comprises the steps of: (a) extracting wheat, wheat flour or wheat gluten with water, a dilute acid, a dilute alkali or an aqueous alcohol to produce a solution containing the amylase inhibitor; (b) adding a polysaccharide to said solution to form an insoluble complex of the amylase inhibitor with the polysaccharide and separating the insoluble complex from the solution; (c) dissolving or dispersing said complex in a solution, then separating the polysaccharide from the solution to collect a solution containing the amylase inhibitor; and (d) treating the collected solution with a cation exchanger to recover the amylase inhibitor from fractions that have not been adsorbed on the cation exchanger.      The amylase inhibitors produced by the above process possess a high amylase inhibitory activity but substantially no trypsin inhibitory activity, and are useful in the prophylaxis and treatment of diseases such as hyperglycemia, diabetes, hyperlipemia, arteriosclerosis and obesity.
Patent CA-2096565-C (CA)
Inventor: OETIKER HANS
IPC: F16L33/035
Filed: 1993-05-19
Granted: 1996-07-09
Abstract: An open reusable clamp structure, especially of the earless type, with a clamping band having overlapping inner and outer band portions adapted to be detachably interconnected by mechanical connecting means; first tool-engaging surfaces are provided in the inner and outer band portions, preferably in the form of pressed-out cold-deformed embossments for tightening the clamping band about an object to be fastened thereby, and second tool-engaging surfaces are provided in the inner and outer band portions which are separate from the first tool-engaging surfaces and are again preferably in the form of pressed-out cold-deformed embossments for reopening the previously interconnected overlapping band portions.  To prevent over-torquing during reopening, undulations or the like are provided in the outer band portion intermediate the first and second tool-engaging surfaces.
Patent CA-2096655-C (CA)
Title: Security device and authenticatable item
Inventor: HASLOP JOHN MARTIN
IPC: B42D15/10
Filed: 1991-11-22
Granted: 1998-05-12
Abstract: An authenticatable item and security device carry a number of symbols (4A, 4B, 4C, 6A, 6B, 6C) identifiable to the naked eye, there being at least two sets of at least three symbols. All the symbols within a set are substantially identical, are positioned in a non-overlapping, regular geometric arrangement, and at least one common viewing angle of inclination, exhibit substantially the same optical performance, the optical performance varying with inclination viewing angle.
Patent CA-2098821-C (CA)
Title: Benzodioxane derivatives
Inventor: KODA AKIRA
IPC: A61P25/20
Filed: 1992-10-21
Granted: 2004-01-27
Abstract: Compounds represented by the general formula (I):      (where R1 is an admantyl group; R2 is a hydrogen atom, a lower alkyl group, a lower alkenyl group or an aralkyl group; R3 is a 1,4-benzodioxane ring that may optionally have 1 - 4 substituents selected from among a lower alkyl group, a lower alkoxy group, a halogen atom, an amino group, a hydroxyl group and a lower alkylcarbonyl group; n is an integer of 1 - 4) or a salt thereof. These compounds have both antianxiety and antidepressant actions and yet they cause less side effects. Therefore, they can be used as excellent drugs that are highly effective in the prevention and treatment of various diseases such as neurosis, psychosomatic diseases, autonomic imbalance and depression.
Patent CA-2104598-C (CA)
Inventor: COHEN JUSTUS B
IPC: C12P21/00
Filed: 1992-02-20
Granted: 2003-01-07
Abstract: The present invention relates to improved methods for the selection of recombinant host cells expressing high levels of a desired protein, which methods are useful with a wide variety of eukaryotic host cells and avoid the problems inherent in existing cell selection technology. The invention further relates to intron-modified selectable genes, comprising the coding sequence of a selectable gene and an intron that reduces the level of selectable protein produced from the selectable gene in a host cell, which are useful in the methods of the invention.