baber/WOPTO huggingface dataset:
Patent CA-2086573-A1 (CA)
Title: Automatic Sidetone Selector
Inventor: FORRESTER CHRISTOPHER M
IPC: H04M1/58
Filed: 1992-12-31
Abstract: Sidetone in a four-wire telephone station set that is coupled to a two-wire telephone line through a four-to-two wire hybrid circuit is automatically set by incrementally adjusting a balancing impedance connected to the circuit until an optimum impedance match between the telephone set and line is achieved.  Under software control, during idle intervals between dialed digits when a call is initiated, a microcontroller mutes the telephone transmitter and receiver on the telephone side of the circuit and substitutes for these components a tone signal generator to produce a sidetone signal that is applied to a full-wave rectifier and therefrom to a peak voltage detector to generate a sidetone envelope.   Individual ones of several impedance balancing networks are then sequentially connected to the telephone side of the circuit and the sidetone envelope for each balancing impedance is digitally encoded and stored.  A mutual comparison of the stored data indicates a minimum sidetone value which corresponds to an optimum impedance match that is retained unless a subsequent telephone call results in a change of balancing impedance.
Patent CA-2087230-A1 (CA)
Title: Methode de reglage de l'induction remanente d'un aimant fritte et produit ainsi obtenu
Inventor: LANG JEAN-MARC
IPC: H01F13/00
Filed: 1993-01-13
Abstract: PRECIS DE LA DIVULGATION:            Méthode de réglage de la rémanence d'un aimant fritté par variation de l'instant d'application du champ orienteur lors de la compression à froid et le produit ainsi obtenu.  La méthode consiste à obtenir des poudres de granulométrie adaptée, à les comprimer à froid sous champ orienteur, à les fritter, à les traiter thermiquement, à les usiner et les aimanter, une précompression TP ? 20%, et de préférence 30-80%, étant effectuée avant application du champ orienteur. Cette méthode s'applique aux aimants de toutes formes devant posséder une induction magnétique bien définie en module et en direction, en particulier aux aimants annulaires pour les tubes à ondes progressives.
Patent CA-2090932-A1 (CA)
Title: Aminoacryloyl-containing terpolymers
Inventor: ADLER DAVID E
IPC: C11D3/37
Filed: 1993-03-03
Abstract: ABSTRACT OF THE DISCLOSURE     This invention provides novel water-soluble terpolymers. These terpolymers contain as polymerized units (a) from about 92 to about 30 percent by weight of one or more C3-C6 monoethylenically unsaturated carboxylic acids; (b) from about 5 to about 50 percent by weight of one or more aminoacryloyl derivatives; and (c) from about 3 to about 25 percent by weight of one or more monoethylenically unsaturated monomers polymerizable with (a) and (b). These terpolymers are useful in detergent formulations, particularly automatic machine dishwashing detergent formulations.
Patent CA-2091036-A1 (CA)
Title: Synthetic surface element
Inventor: LAWRENCE DAVID
IPC: E01C5/22
Filed: 1993-03-04
Abstract: A synthetic surface element having a central core of filler material, for example wood chips, saw dust, foam, or any other inert filling material, said central core being disposed between top and bottom layers of thermaplastic or thermaset material, the outer perimeter of the synthetic surface element being provided with first flanges extending substantially outwardly from the thermaplastic or thermaset material covering the top of the central core and said flanges having substantially downwardly extending supplementary flanges located proximate the terminus of the first flanges, the length of the supplementary flange being greater than the distance between the top and bottom surfaces of the layers covering the central core filler so as to define proximate the bottom of the synthetic surface element a continuous channel bounded by the supplementary flange and the central core, wherein in placing said synthetic surface element in engagement with a supporting surface, for example a gravel or aggregate bed, the hollows will engage with the supporting elements, for example the aggregate sand or the like, and position the synthetic surface element, and prevent it from moving in relation to the supporting surface.
Patent CA-2092704-A1 (CA)
Title: Bilayer wound dressing
Inventor: MURRAY D GARY
IPC: A61F13/02
Filed: 1991-09-12
Abstract: A skin covering material, e.g. for covering wounds, burns and the like, to protect them during the healing process, includes a tacky polymer complex layer (24) for adhesively contacting the skin, and a water vapour-permeable backing layer (22, 26) carrying the polymer. The polymer complex is produced by mixing together solutions of two hydrophilic polymers which are coprecipitatable, when mixed together, to form a water-insoluble complex. An example of a pair of such polymers is polyacrylic acid and polyethylene oxide. The assembly is suitably packaged in a sealed pouch (13) with high barrier properties towards water vapour and containing an atmosphere of high humidity.
Patent CA-2092993-A1 (CA)
Inventor: WISE ROBERT D
IPC: G01C9/10
Filed: 1991-09-05
Abstract: A positioning device (12) for a car seat (3) indicates when the car seat has been properly positioned in an automobile or on a shopping cart. The positioning device includes a paper backing (14) which is encapsulated in a plastic housing (16). The plastic housing includes a relief projection (20) in the shape of an arc. A ball (24) slides within the relief projection and against the paper backing. Printed information (30) on the paper backing indicates when the seat is in the proper orientation according to the posi-tion of the ball.
Patent CA-2093934-A1 (CA)
Inventor: CHUNG KENG H
IPC: C10G1/04
Filed: 1993-04-13
Abstract: Aerated bitumen froth containing bitumen, water, air and solids is the product of the hot water extraction process for recovering bitumen from oil sand.   Measurements related to the water content of the froth can be obtained by measuring its resonant frequency in a calibrated output, open-ended microwave cavity.   By also measuring the bulk density of the froth and assuming a constant relationship for the solids content, one can compute from the assembled data the output quality of the froth.          The measurements can be taken repetitively at the vessel as the froth is produced and used to almost instantly provide froth quality information.
Patent CA-2094253-A1 (CA)
Title: Meltblowing die
Inventor: ALLEN MARTIN A
IPC: B29C41/08
Filed: 1991-10-11
Abstract: A melt-blowing die assembly features (a) intermittent operation, (b) modular valve actuator to selectively shut off polymer flow, (c) an in-line electric heater, and (d) melt-blowing units arranged in side-by-side relationship.
Patent CA-2098765-A1 (CA)
Title: Dispositif de protection antifeu en materiau souple endothermique
Inventor: DECIDOUR JEAN-CLAUDE
IPC: E04B1/94
Filed: 1993-06-18
Abstract: - Dispositif de protection antifeu (G3), comportant un corps souple (A3) de matériau à propriétés endothermiques comprenant une charge libérant de la vapeur sous l'action du feu. - Selon l'invention, ce dispositif comporte, sur au moins la face dudit corps destinée à être dirigée vers le feu, au moins une couche (E3) d'un tissu constitué de fibres résistant au feu et imprégné d'un agent intumescent. Figure 3.
Patent CA-2099842-A1 (CA)
Title: Absorbent article having an umbilical protection feature and an abbreviated absorbent structure
Inventor: LANTZ JOANNE M
IPC: A61F13/514
Filed: 1993-07-05
Abstract: ABSTRACT            A distinctive absorbent  article comprises  a  substantially  liquid-impermeable outer cover member having a length and a width.  The outer cover provides a rear waistband portion and a front waistband portion, and has a layer of polymer film material on an outer surface of the front waistband  portion  of the  outer cover.   A  liquid  permeable topsheet layer is provided for contacting a wearer's  skin,  and an absorbent body is interposed between the outer cover and the topsheet layer.  The absorbent body has a length and width which are smaller than the outer cover length and width, thereby providing end margins and side margins of the outer cover.  An adhesive fastening mechanism adheres to the film layer to secure the front and rear waistband portions of the outer cover about the wearer.  An elastic member is connected to provide elasticized gathers along a cross-direction of the rear waistband portion of the outer cover.   An outermost layer of substantially nonwettable, resilient material is connected to overlie the polymer film of the outer cover along the front waistband portion of the outer cover, thereby sandwiching the polymer film between the topsheet layer and the outermost layer of resilient material.   The outermost resilient material has a lengthwise extent which is less than the length of the outer cover.
Patent CA-2103827-A1 (CA)
Title: Safety lock for an adjustable pet collar
Inventor: STOUT JAMES G
IPC: A01K27/00
Filed: 1993-08-11
Abstract: ABSTRACT OF THE DISCLOSURE         A pet collar (10) includes a first web portion (18) attached to a second web portion (19) by a locking device (16).  The locking device (16) includes opposed plates (22, 23) each of which have a plurality of apertures (27, 28, 29) therein which receive the web portions (18, 19).  A lock barb (26) is positioned at each end of each plate (22, 23) and the lock barbs (26) of opposed plates (22, 23) are opposed to each other so that when tension is placed upon a web portion (18, 19), the opposed lock barbs (26) will engage the web portion (18, 19) positioned therebetween.
Patent CA-2110092-A1 (CA)
Inventor: SHIRAMIZU AKIRA
IPC: G06F11/34
Filed: 1993-11-26
Abstract: A system and method for evaluating resource utilization are provided.  The utilization of each subsystem can then be displayed in a manner enabling a user to easily evaluate performance evaluation.  The present invention determines whether any of the resources constituting a computer system are subject to a heavy load by entering system management facility records and comparing them with preset threshold values for resource utilization ratios.  The job or resource which has subjected this resource to a heavy load is then identified as the bottleneck.  The result is presented to the user via a graphical display.
Patent CA-2110506-A1 (CA)
Title: Self-energized controllable belt tensioner
Inventor: KUMM EMERSON L
IPC: F16H9/14
Filed: 1992-05-28
Abstract: This invention includes a belt tensioner (10) in combination with a variable speed drive (8), which tensioner (10), upon command, uses a pump (26) continuously driven by a fixed diameter pulley (18) positioned by a rotary actuator (16) to take up and tension the belt (2) passing over the same pulley (18). Another embodiment includes a linear actuated tensioner (50) which replaces the rotary actuator (16) described above. A further embodiment includes a linear actuator (70) which is mounted on a rotary arm (71). All of the embodiments take up and tension the belt (2) passing over their respective pulleys.
Patent CA-2111231-A1 (CA)
Title: Acylated heparins as inhibitors of the replication of retroviruses
Inventor: CARAMAZZA IDA
IPC: C08B37/00
Filed: 1992-06-05
Abstract: Heparins that have been N-acylated with mono- or dicarboxylic acids inhibit the replication of retroviruses, in particular HIV.
Patent CA-2112262-A1 (CA)
Title: Agent for increasing somatostatin or for inhibiting decrease of somatostatin
Inventor: YAMASAKI KATSUYA
IPC: A61P1/00
Filed: 1993-04-27
Abstract: An agent for increasing secretion of somatostatin or inhibiting decrease of secretion of somatostatin which comprises as an active ingredient a carbostyril compound of formula (I), or a salt thereof, which is useful for treating diseases associated with the decrease of somatostatin such as esophagitis, Alzheimer's disease, etc.
Patent CA-2114200-A1 (CA)
Title: Flow limiting valve automatic control device
Inventor: CHAMEROY ERIC
IPC: A47J27/092
Filed: 1994-01-25
Abstract: Device for controlling a flow limiting valve mounted in a cover of an appliance for cooking under pressure, the appliance further including a container to be closed by the cover, the cover having a central axis and the valve being movable between an open position for permitting flow of fluid out of the appliance and a closed position for blocking flow of fluid out of the appliance, the device comprising a cover handle and a bolt mounted in the cover handle for movement between first and second end positions along a line passing through the central axis, the bolt being operatively associated with the valve for permitting free displacement of the valve when the bolt is in the first end position and for preventing the valve from moving to the closed position when the bolt is in the second end position, and wherein: the bolt comprise biasing for elastically urging the bolt toward the first end position; and the device further comprises defining an automatic locking-unlocking system coupled with the bolt for controlling movement of the bolt between the first and second end positions, the system having a first state for locking the bolt in the second end position and a second state for automatically unlocking the bolt when the cover is brought into a position to close the container.
Patent CA-2115806-A1 (CA)
Inventor: MONOT FREDERIC
IPC: C12P19/06
Filed: 1994-02-16
Abstract: COMPOSITION COMPRENANT UN MO?T DE XANTHANE ET DES PROTEINES ET APPLICATION DE LA COMPOSITION DANS UN FLUIDE DE FORAGE DE PUITS Invention de Frédéric MONOT, Christine NOIK et Daniel BALLERINI On décrit une composition d'un moût de xanthane ayant une propriété améliorée, préparée à partir d'un milieu de culture renfermant en particulier au moins une source de soufre de concentration comptée en élément soufre au plus égale à 60 mg par litre de milieu de culture et d'au moins une souche du genre Xanthomonas, et d'une source de protéines dans un rapport pondéral protéines sur xanthane compris entre 0,05 et 2. Le moût récupéré contenant de préférence les cellules, à pH alcalin et en présence de cations bivalents, avec les protéines, constitue une composition quimanifeste des propriétés de thixotropie. Application de la composition dans un fluide de forage pour le forage des puits. Figure 2 à publier.
Patent CA-2116577-A1 (CA)
Title: Disc brake
Inventor: SUNDSTROM PAUL
IPC: F16D55/224
Filed: 1992-08-31
Abstract: A disc brake assembly (1) has a pair of pivoted brake arms (4) carrying brake pads (3) located on re-spective opposite sides of a disc (2). The brake arms (4) are biased towards each other by springs to clamp the brake pads (3) against the disc (2). The disc brake assembly (1) also includes a cam member (9) having two double-sided cams, each of which co-acts with a cam follower (12) mounted on a respective brake arm (4). The cam member (9) is connected to an actuating cylinder (6). When the cylinder (6) is energised, the inner cam surfaces drive the cam followers (12) apart to release the brake. When the cylinder (6) is not ener-gised, the outer cam surfaces prevent outward move-ment of the cam followers (12) thereby positively locking the brake pads (3) against the disc (2). The disc brake also includes a mechanism for automati-cally adjusting the position of the brake pads (3) to compensate for wear.
Patent CA-2119498-A1 (CA)
Inventor: MALLON CHARLES B
IPC: C09D5/23
Filed: 1994-03-21
Abstract: MAGNETIC RECORDING MEDIA                             Abstract This invention relates to coating compositions used for forming a magnetic layer on the surface of substrates to prepare magnetic recording media, e.g., recording tapes, of which the characteristic ingredient is a copolymeric resin. The copolymeric resin is a copolymer obtained by the copolymerization of comonomers in a specified proportion including (1) vinyl chloride, (2) vinyl acetate, and (3) an acrylate or methacrylate moiety having a sulfonic acid group or a metal or amine salt thereof. This copolymeric resin is advantageous in respect of imparting enhanced dispersion and magnetic property characteristics while also having desirable rheological characteristics and thermal stability.
Patent CA-2120892-A1 (CA)
Title: Polymeric ophthalmic lens with crosslinker containing saccharide residue
Inventor: MOLOCK FRANK F
IPC: C08G83/00
Filed: 1994-04-08
Abstract: ABSTRACT      An ophthalmic  lens,  particularly a  soft hydrogel contact lens, is disclosed.  The lens can be derived from a  crosslinked polymer made by reacting a hydrophilic monomer with a crosslinking amount of a polyfunctional compound containing a saccharide residue.  The preferred hydrophilic monomer is actually a mixture of the following individual hydrophilic monomers:  a) the reaction product of a free radical reactive monoisocyanate and a monoalkoxy polyalkylether, b) N,N-dimethylacrylamide, and optionally c)hydroxyethyl methacrylate. The preferred polyfunctional compound  is  a prepolymer derived  from  an  alkoxylated glucose or sucrose.   This prepolymer can be made by reacting glucose or sucrose, which has been ethoxylated or propoxylated,  with a free radical  reactive  isocyanate which  has  been  capped.    The  free  radical  reactive isocyanate  can  be  capped  by  reacting  it  with  a polyalkylether,  such as polyethylene glycol,  and then reacting this intermediate with a diisocyanate.      Advantageously, a fluorinated monomer is added to the reactive components from which the crosslinked polymer of the  lens  is derived.  The preferred fluoromonomer is composed  of  the  reaction  product  of  a  free  radical reactive monoisocyanate and perfluorooctanol.      The polymerization is ideally carried out in the presence of an inert diluent, preferably the boric acid ester of polyethylene glycol 400.
Patent CA-2122744-A1 (CA)
Title: Photosensitive polymer composition for flexographic printing plates processable in aqueous media
Inventor: MIRLE SRINIVAS K
IPC: G03F7/00
Filed: 1994-05-03
Abstract: Abstract of the Disclosure A photocurable composition useful in preparing water-developable, solid printing plates is prepared by blending a urethane (meth)acrylate prepolymer with a complexing polymer based on poly(vinyl pyrrolidone) composition.  The resulting composition is suitably formulated with additional photoactive (meth)acrylate monomers or oligomers and photoinitiator for casting or extrusion on a substrate to form a flexographic printing plate.  Following UV exposure of the plate through a negative, unexposed areas can be removed by washing with aqueous media, to give a plate with a desirable relief image.  The use of the aqueous washout solution as opposed to organic solvents minimizes pollution problems.  The use of the complexing polymer significantly reduces the cold flow of the uncured plate and both increases toughness and reduces tack of the cured plate.
Patent CA-2122889-A1 (CA)
Title: Heterocyclic compounds
Inventor: GACSALYI ISTVAN
IPC: A61K31/435
Filed: 1994-05-04
Abstract: HETEROCYCLIC COMPOUNDS AND PROCESS FOR THE PREPARATION     THEREOF                         Abstract The invention relates to new heterocyclic compounds, a process for the preparation thereof, pharmaceutical compositions comprising the same, to the use of the said heterocyclic compounds for the treatment of diseases and for the preparation of pharmaceutical compositions suitable for the treatment of diseases. According to the invention the new heterocyclic compounds of general formula (1), wherein A stands for a group of formula -C?C- or -C=C-, and pharmaceutically acceptable said addition salts thereof can be prepared as follows: a) for the preparation of a compound of general formula (I), wherein A represents a group of formula -C?C-, subjecting 8-azaspiro[4,5]decane-7,9-dione-8-propyne(2) with 1-(1,2-benzisothiazol-3-yl) piperzine to Mannich condensation; or b) for the preparation of a compound of general formula (I), wherein A stands for a group of formula -C?C-, reacting 8-azaspiro[4,5]decane-7,9-dione-8-propyne(2) with an alkyl magnesium halide of formula R-Mg-Hal, wherein R stands for alkyl having 1 to 4 carbon atom(s) and Hal denotes chlorine, bromine or iodine, reacting the thus-obtained propyne magnesium halide of general formula (111), wherein Halis as stated above, with at least one molar equivalent of trioxymethylene or formaldehyde, converting the butynol derivative of formula (IV) thus obtained into a reactive derivative of general formula (V), wherein X stands for a reactive ester group, and reacting the compound of general formula (V) with 1-(1,2-benzisothiazol-3-yl) piperazine; or c) for the preparation of a compound of general formula (I), wherein A stands for a group of formula -CH=CH-, subjecting the compouod of general formula (I) containing a group of formula -C?C- in the place of A to partial reduction. The new compounds according to the invention possess anxioselective properties and can be used to advantage in the therapy.
Patent CA-2124496-A1 (CA)
Title: Transient Voltage Protector
Inventor: FORTUNE GLEN C
IPC: H02H9/04
Filed: 1994-05-27
Abstract: An improved apparatus is provided to protect an electrical device in a vehicle against transient changes in voltage provided by a power source. The transient voltage protector is connected with a conductor which conducts current from the power source to the electrical device.      The transient voltage protector responds to the rate of change of voltage in the conductor to shunt at least a portion of the electrical current in the conductor away from the electrical device when the rate of change of voltage in the conductor exceeds a predetermined rate. The transient voltage protector includes a high pass filter which provides an output signal when the rate of change of voltage in the conductor exceeds a predetermined rate. In response to the output from the high pass filter, a combined comparator and shunt controller effects operation of a shunt switch from an open condition to a closed condition. This completes a path through which current is directed away from the electrical device.
Patent CA-2124712-A1 (CA)
Inventor: CHEN HOMER H
IPC: H04N7/26
Filed: 1994-05-31
Abstract: The present invention is directed at a Transform Coder Unit (TCU) to transform an arbitrarily shaped image into optimal transform coefficients (OTC) for data transmission.  The TCU comprises a forward transform which transforms the image to transform coefficients, and a TCS generator which generates a transform coefficient set (TCS) from the transform coefficients.  The TCU also contains an inverse transform which transforms the TCS to a computed region block having computed pel values. Finally, the TCU comprises a replacer which replaces those computed pel values corresponding to the interior pel set with the original pel values to form a modified computed region block which is re-iterated until optimal transform coefficients are determined.     The present invention is also directed at a process for determining optimal transform coefficients using the aforementioned device.
Patent CA-2125390-A1 (CA)
Title: Laser control method and apparatus
Inventor: HEDBERG MATS OLOV JOAKIM
IPC: H01S5/00
Filed: 1993-01-19
Abstract: An apparatus for controlling the optical output intensity of a laser diode includes mean and peak power regulating structure. A method for controlling the optical output intensity of a laser diode includes the steps of sensing both peak and mean power and regulating based upon what is sensed.
Patent CA-2126734-A1 (CA)
Inventor: CARLO LOUIS D
IPC: B60R25/04
Filed: 1994-06-24
Abstract: An anti-theft device is disclosed for use on a motor vehicle having a starting circuit including an operating switch and a starting motor adapted to draw a substantial amount of current from a battery of the vehicle when the operating switch is actuated.  The anti-theft device comprises a power switching device having an unarmed condition connecting the battery to the starting circuit and an armed condition in which the switching device is operable to disconnect the starting circuit from the battery; means for arming and unarming the power switching device; and means for producing a noise simulating a weak battery when the power switching device is armed and the operating switch is actuated.