baber/WOPTO huggingface dataset:
Patent CA-2196336-A1 (CA)
Title: Process for preparing aspartic acid polycondensates with improved biological degradability and their use
Inventor: KRONER MATTHIAS
IPC: C08G73/10
Filed: 1995-07-21
Abstract: A process is disclosed for preparing aspartic acid polycondensates with improved biological degradability by thermal polycondensation of finely powdered aspartic acid in solid phase, at temperatures from 180 to 250 ~C, until maximum 70 % by weight of the theoretically possible amount of water produced during polycondensation are removed from the reaction mixture. Also disclosed is the use of the thus produced polycondensates as additives for washing and cleaning agents and as scale inhibitors.
Patent CA-2198639-A1 (CA)
Title: Procede et appareil de dialyse automatique
Inventor: BOSETTO ANTONIO
IPC: A61M1/16
Filed: 1996-07-03
Abstract: Le procédé de dialyse automatique comprend les mémorisations de valeurs permises de la réduction relative de volume du sang (BV) et de perte de poids (WL), de mémorisation de valeurs permises de la vitesse de réduction relative du volume du sang (BV) et de la conductivité du liquide de dialyse (CD), d'acquisition de valeurs effectives de la perte de poids (WL) et de la réduction du volume du sang (BV) pendant le traitement de calcul de la vitesse de perte de poids (WLR) et de la conductivité du liquide de dialyse (CD) et de correction de la vitesse de variation du coefficient d'ultrafiltration (UFR) et de la conductivité du liquide de dialyse (CD) sur la base des valeurs calculées de la vitesse de perte de poids (WLR) et de la conductivité (CD).
Patent CA-2203261-A1 (CA)
Title: A set of golf club irons having a low density rear cavity perimeter insert for selected weight distribution of each iron
Inventor: BOONE DAVID D
IPC: A63B53/00
Filed: 1995-09-29
Abstract: This invention is an improved set of golf club cavity backed irons, wherein each golf club iron head has a structure for increasing the volume of the cavity (28) using an undercut perimeter which permits weight redistribution to increase the thickness of the top line (16), the toe (20), and the sole (18) of the club head. The undercut portion of the invention is sealed from moisture by means of a low mass density insert (30) wherein the insert is made of a low mass density material which addable serves the function of dampening sound and vibration upon ball impact. A weight slot (32) is used to vary the location of the center of gravity between the toe (20) and the heel (22) as a function of the loft of the club to provide maximum accuracy of trajectory and ball hitting capability.
Patent CA-2203881-A1 (CA)
Inventor: STENQUIST SVEN
IPC: F16F9/02
Filed: 1996-02-20
Abstract: A gas spring (10) that momentarily dwells in its retracted position after the retraction force is removed. The gas spring (10) has a casing (16), a first piston (18) received within the casing (16), a piston rod (12) protruding from the casing (16) and connected to the first piston (18), and a second piston (20) received within the casing (10). A compressible gas is received within the casing between the second piston (20) and the other end (22) of the casing (16). A hydraulic fluid is received within the casing (16) between the first (18) and second (20) pistons and between the first piston (18) and the one end (14) of the casing (16). A delay valve (26) and a check valve (24) carried by the first piston (18) controllably transfer hydraulic fluid between the two fluid chambers (64, 66), the delay valve (26) causing the first piston (18) and rod (10) to dwell in the retracted position by delaying the free transfer of fluid between chambers (64, 66).
Patent CA-2206254-A1 (CA)
Title: Preparation of ice crystals suspension in sugar solution and its use for making confections
Inventor: MOORE STEPHEN RAYMOND
IPC: A23G9/46
Filed: 1995-11-30
Abstract: A suspension containing a large number of very small ice crystals in a sugar solution is obtained by mixing a concentrated sugar solution with a less concentrated sugar solution or water, both solutions having been cooled to a temperature of from just above the metastable limit temperature of the respective solution to just above the melting point of the respective solution prior to mixing.
Patent CA-2206667-A1 (CA)
Title: Plasma mass spectrometer
Inventor: HAINES RAYMOND CLIVE
IPC: G01N27/62
Filed: 1997-05-30
Abstract: A plasma mass spectrometer comprises a plasma torch (1) for generating ions from a sample introduced into a plasma (2), a nozzle-skimmer interface (3,5) for transmitting said ions into a first evacuated chamber (11), ion guiding means (12), an apertured diaphragm (18) dividing said first evacuated chamber (11) from a second evacuated chamber, and an ion mass-to-charge ratio analyzer in the second chamber for producing a mass spectrum.  The ion guiding means comprises a multipole rod-set (13,14,15), means for applying an AC voltage between rods in the set, and means (22) for introducing into said ion guiding means an inert gas selected from the group comprising helium, neon, argon, krypton, xenon and nitrogen so that the partial pressure of said inert gas inside said rod-set is at least 10 -3 torr.  Interfering peaks in the spectrum, such as Ar+, are thereby reduced.
Patent CA-2207092-A1 (CA)
Inventor: ORLAMUENDER HARALD
IPC: H04M3/42
Filed: 1997-05-26
Abstract: A requesting terminal signals a call request (CALL) to a control unit of a first communications network.  The control unit then determines whether sufficient capacity is available in the first communications network to establish the connection requested by the call request.  In the event of insufficient capacity, the control unit transmits an overload message (DAT) to the requesting terminal.  It only initiates an alternative establishment of the requested connection via another, second communications network after it receives an acknowledge message (ACK) issued by the requesting terminal.
Patent CA-2208162-A1 (CA)
Title: Reactive pvd with neg pump
Inventor: OUELLET LUC
IPC: C23C14/06
Filed: 1997-06-19
Abstract: An apparatus for carrying out reactive physical vapor deposition on a substrate to form a nitride layer, comprises a vacuum chamber, a substrate support in the vacuum chamber, a target over the substrate support made of a refractory or noble metal, for example titanium and tantalum, a gas inlet for supplying nitrogen gas to the vacuum chamber, and a non-evaporable getter pump for serving as the primary pumping means in the vacuum chamber during the reactive physical vapor deposition of a nitride of the metal onto the substrate. The non-evaporable getter pump consists of a material insensitive to nitrogen, such as an alloy of zirconium and iron.
Patent CA-2208645-A1 (CA)
Inventor: KAPP MARTIN A
IPC: B23F19/00
Filed: 1997-06-24
Abstract: The present invention relates to a process for fine machining the tooth flanks (3) of a gear wheel  (2) on a machine tool in which a machining tool (1) that is essentially symmetrical about its axis is brought into contact with the tooth flanks (3) of the gear wheeled (2) that is to be machined, the machining tool (1) rotating about its axis and the gear wheel (2) rotating about its axis during the machining process.  The present invention is such that the machining surfaces (6) of the machining tool (1) do not abrade material from the tooth flanks (3) that are to be machined, but merely smooth the surface of the teeth (3) that are to be machined without removing any material from the surface of the teeth (3) that are to be machined.  This increases the load bearing capacity.
Patent CA-2210485-A1 (CA)
Inventor: KALINOSKI JOHN P
IPC: F16J15/14
Filed: 1996-01-19
Abstract: L'invention se rapporte à un joint électroconducteur, moulé sur place, tel qu'un joint de protection contre les interférences électromagnétiques (EMI), destiné à être utilisé entre des composants de corps d'accouplement d'un équipement électronique. Le joint est formé dans un matériau polymère fluide constitué de particules électroconductrices. Le procédé de formation du joint consiste à extruder le matériau polymère fluide chargé de particules électroconductrices à partir d'un système comprenant plusieurs réceptacles métalliques (A, B, C) conçus pour contenir divers composants prémélangés et une chambre de mélange (78). Le matériau polymère fluide est acheminé des réceptacles métalliques (A, B, C) à une chambre (141) de l'extrudeuse. Une pression est appliquée sur le matériau polymère fluide à l'aide d'un système d'amenée de pression qui comprend une source de pression positive (121) et de pression négative (125), et un module de commande (126) servant à introduire sélectivement une pression positive et négative dans la chambre d'extrusion (141) afin de former un cordon de matériau polymère fluide, électroconducteur, sur un substrat (115), qui est ensuite durci pour former le joint EMI.
Patent CA-2211195-A1 (CA)
Inventor: FRANK JOHN W
IPC: C09J133/06
Filed: 1996-01-11
Abstract: Le bâton de colle contient des polymères acryliques, des polymères acryliques dont l'adhésivité a été améliorée, des polymères acryliques contenant des unités macromères latérales spéciales, des polymères acryliques contenant des monomères (alkyle à chaîne longue)méthacrylate, des polymères acryliques contenant simultanément des groups macromères et des groupes alkyle à chaîne longue et des polymères acryliques contenant des additifs cristallins. La préparation adhésive est constitué par (a) un adhésif polymère à base acrylique, (b) un améliorant de l'adhésivité, (c) un additif cristallin et (d) au moins une charge.
Patent CA-2214075-A1 (CA)
Title: Method of producing tubular container and apparatus for producing the same
Inventor: IMAIZUMI YASUYUKI
IPC: B29C35/04
Filed: 1996-12-26
Abstract: It is an object of the present invention to provide a method of producing a tubular container which can efficiently and integrally produce a thinly walled neck section on the tubular container without altering the appearance and profile of the container. The method of producing a tubular container comprises the first step of arranging a thinly walled tube to a tube. holder, the second step of softening the inside of the front end of the thinly walled tube, the third step of shrinking the front end of the thinly walled tube, and the fourth step of forming a neck section and a shoulder section to the front end of the thinly walled tube by means of a male mold. After heating the thinly walled tube with hot air, the air is drawn and removed, and the outer wall surface is cooled so as to make the subsequent steps to be conducted smoothly and efficiently. Since hot air is drawn after heating the outer wall surface, a thinly walled tapered shoulder section can be produced without altering the appearance and profile of the tubular container. Also a marble pattern can be formed on the neck section and the shoulder section at the time of molding the tubular container.
Patent CA-2216856-A1 (CA)
Inventor: BARR PHILIP J
IPC: C07K14/47
Filed: 1996-04-19
Abstract: The present invention provides methods to screen for anti-viral agents utilizing a novel family of apoptosis-modulating proteins.
Patent CA-2217357-A1 (CA)
Title: Demand-based power and data rate adjustments to a transmitter to optimize channel capacity and power usage with respect to data transmission traffic over a fixed-bandwidth channel
Inventor: MAHANY RICHARD J
IPC: H04B7/005
Filed: 1997-09-30
Abstract: In a communication system in which a transmitter transmits data over a communication channel of a fixed bandwidth to a receiver, the method according to which the transmit data rate is continuously adjusted to a rate which is substantially equal to a short-term average input data rate. The channel capacity is, correspondingly to transmit data rate adjustments, continuously adjusted, through changes in transmit power, symbol rate and modulation format, to a level at which the ratio of received signal energy per bit to noise spectral density (Eb/No) at the receiver is close to but above its minimum acceptable level, thereby matching the channel capacity to the traffic.
Patent CA-2221418-A1 (CA)
Inventor: JEANNIN PHILIPPE
IPC: A01N25/34
Filed: 1997-03-26
Abstract: A method and a composition particularly suitable for controlling fleas on small mammals are disclosed. The composition comprises at least one 1-N-arylpyrazole insecticide, particularly fipronil, as well as at least one insect growth regulator (IGR) compound, in doses and proportions that are parasiticidally effective against fleas, and in a fluid carrier that is acceptable for use on the animal and suitable for topical application on the skin, preferably on a small area thereof.
Patent CA-2221800-A1 (CA)
Title: Reduction of ketone groups
Inventor: REEVE CHRISTOPHER DAVID
IPC: C12P41/00
Filed: 1996-06-17
Abstract: A compound of formula (III) is produced by selectively reducing a compound of formula (II) using a reductase possessing the properties of one produced by Beauveria, Candida, Kluyveromyces, Torulaspora or Pichia or a compound of formula (IV) is produced by selectively reducing a compound of formula (II) using a reductase possessing the properties of one produced by Candida pelliculosa, Neurospora crassa, Pichia trehalophila or preferably Hansenula anomola.
Patent CA-2228587-A1 (CA)
Title: Method and apparatus for tracking position and orientation of a stylus and for digitizing a 3-d object
Inventor: JACKSON BERNARD G
IPC: G06T15/00
Filed: 1996-07-29
Abstract: A method and apparatus for measuring three-dimensional (3-D) coordinates. A 3D object can be digitized into a mesh representation manipulable by a computer system (18) by tracing a stylus of a probe apparatus (22) over surfaces of the object. The probe apparatus includes an arm having a series of linkages and joints. The arm can be assembled by placing th ejoints of the arm in joint fixtures a desired distance and angle apart and bonding the joints to a linkage. The probe apparatus is calibrated by placing th etip of the stylus (22) at an arbitrary point in a work volume and varying the stylus orientation to find error values and determine calibration parameters. The sensors of the probe apparatus are zeroed by placing the probe apparatus in the only posible home position and assigning assumed starting angles to the sensors.
Patent CA-2228786-A1 (CA)
Title: Systeme de ventilation des plates-formes des aubes mobiles
Inventor: JUDET MAURICE
IPC: F01D11/00
Filed: 1998-01-26
Abstract: L'invention concerne un système de ventilation des plates-formes (10) des aubes mobiles (4) d'un étage de turbine à gaz. Des circuits de ventilation (30, 31, 32) sont réalisés sous forme de canaux sur la face inférieure des plates-formes (10). Ces canaux sont recouverts par des plaquettes d'étanchéité (17) empêchant la fuite d'air par l'espace (13) séparant les plates-formes (10) de deux aubes (4) adjacentes. L'arrivée d'air frais s'effectue par des orifices (36, 37, 38) ménagés dans les plaquettes (17) et débouchant dans des collecteurs (33, 34, 35) qui distribuent l'air dans les circuits de ventilation. Le débit d'air est évacué par des trous évents (39, 40) présents tout au long des circuits de ventilation (30, 31, 32).
Patent CA-2229890-A1 (CA)
Inventor: TREMBLAY MARC
IPC: H04N5/374
Filed: 1996-07-30
Abstract: The addressing and extracting apparatus is for addressing sensing cells of interest in a solid state sensor, and extracting thereof resulting signals.  The apparatus comprises a solid state sensor including a plurality of sensing cells, each of the sensing cells having a sensitive unit and a sensing controllable switch having a first terminal for receiving the resulting signal from the sensitive unit, a second terminal for delivering upon activation of the switch the resulting signal, and a control gate; a selecting line connected to a sensing array of n sensitive units by the control gates of their associated sensing controllable switches; a sensing activating device for activating the selecting line; n sensing data lines for receiving resulting signals of the sensitive units when the selecting line is activated;  a parallel analog multiplexer; an extracting activating device for individually activating extracting selecting lines of the parallel analog multiplexer, according to a given sequence; and a controller for controlling and synchronizing operation of the activating devices, whereby, upon activation of the activating devices, the sensing cells of interest are addressed, and the corresponding resulting signals are extracted via extracting data lines of the parallel analog multiplexer.
Patent CA-2230058-A1 (CA)
Inventor: FRIGG ROBERT
IPC: A61L31/12
Filed: 1995-09-06
Abstract: The bone plate proposed has several conical holes which taper towards the surface in contact with the bone and two screws designed to anchor the plate in place. Each of the screws has a conical head, with a patterned curved surface, shaped to fit into the conical holes in the plate, plus a threaded shank designed to anchor the screw in the bone. The patterned curved surface of the screw head is harder than the material of which the plate is made in the vicinity of the holes.
Patent CA-2233744-A1 (CA)
Inventor: HU MING
IPC: C09D171/00
Filed: 1998-03-31
Abstract: A primer composition for radiation curable inks comprising 75-99.99% water, 0.01-20% of a silane coupling agent having the general formula: (see formula I) and 0.001-20% of a nonionic surfactant which is a polyethylene glycol glyceryl fatty acid ester; a method for pre-treating a vitreous article prior to application of organic radiation curable decorative indicia with said primer composition; and a method for applying decorative indicia to the surface of a vitreous article comprising the steps of (a) applying to the surface of the article a primer composition containing a solvent and a coupling agent capable of forming a chemical bond between the surface of the vitreous article and an organic, radiation curable composition, (b) applying an organic radiation curable ink composition over the primer composition in a desired design, (c) curing the organic ink composition on the article by exposing it to the radiation by which it is curable, thereby causing the coupling agent to form a chemical bond between the surface of the vitreous article and the cured organic ink composition; and a method for pre-treating vitreous articles.
Patent CA-2234880-A1 (CA)
Title: Improved chelating resins
Inventor: FRANC JACQUES
IPC: B01J45/00
Filed: 1998-04-16
Abstract: The present invention is concerned with improved chelating resins. More particularly, the present invention is concerned with macroporous, aminoalkylphosphonic or iminodiacetic acid chelating resins having improved stability and capacity in the removal of cations (e.g. calcium, magnesium, barium and strontium) from brines and in the removal of metals (e.g. nickel, copper and zinc) from waste streams.
Patent CA-2241287-A1 (CA)
Title: Variable cut sheet stacker
Inventor: FOLSOM JAMES C
IPC: B65H31/34
Filed: 1998-06-22
Abstract: A variable cut sheet stacker has an internal stacking volume that is readily adjusted (in length, width and height) for a large variety of form sizes and thicknesses. First and second side members are spaced from each other horizontally and the positions between them can be adjusted, typically uniformly moved with respect to a central support. An inlet and support is provided in an inlet for the stacker, having a ramp, and an outlet end guide is adjustable with respect to the inlet end support. A top conveyor conveys cut sheets past the inlet support toward the outlet end guide in a first direction, and a bottom support is vertically spaced in an adjustable manner from the top conveyor for supporting cut sheets. The open interior volume defined by these elements is substantially a rectangular prism. The top conveyor includes a frame that is pivotable about a horizontal axis perpendicular to the first direction to move between a conveyance position and an adjustment-facilitating position. An eject device, in the form of a substantially-vertical paddle, mounted with each side member, is provided for movement with respect to the side members in the first direction to eject a stack of forms and then automatically stop.
Patent CA-2243913-A1 (CA)
Title: Liquid discharge method and liquid jet apparatus
Inventor: ISHINAGA HIROYUKI
IPC: B41M5/00
Filed: 1998-07-27
Abstract: A liquid discharge method is designed for a liquid jet head provided with first discharge openings, a first liquid flow path conductively connected with each of the first discharge openings, first energy generating devices for generating energy for the discharge of droplets from the first discharge openings, second discharge openings, a second liquid flow path conductively connected with each of the second discharge openings, and second energy generating devices for generating energy for the discharge of droplets from the second discharge openings.  Then, preceding the discharge of the first droplet from the discharge opening at a first discharge speed V1, the second droplet is discharged from the second discharge opening at a second discharge speed v2 smaller than the first discharge speed, and before each of the liquid droplets being impacted on an object, the first liquid droplet and the second liquid droplet are allowed to collide with each other to be combined.  In this way, it becomes possible to allow two droplets to be in contact or to collide with each other reliably to be mixed between the liquid jet head and the object within a range that does not render any hinderance practically even if discharge speeds may fluctuate, hence obtaining precise images in higher quality.
Patent CA-2247300-A1 (CA)
Title: (3-oxoisoindolin-1-ylidine) propandinitrile derivatives and method for preparing the same
Inventor: CHOI HYUN-CHEUAL
IPC: G02F1/361
Filed: 1998-09-16
Abstract: Derivatives of (3-oxoisoindolin-1-ylidine)propandinitrile, and a method for preparing the derivatives. The (3-oxoisoindolin-1-ylidine)propandinitrile derivatives can be prepared easily and at low cost. Also, the derivatives show good heat resistance at a temperature required for manufacturing an electro-optic device, and can minimize light loss at a near infrared light wavelength range by substituting hydrogen of C-H bond by halogen atom. As a result, the derivative of the present invention are useful as an optical material for an electro-optic device. In addition, the (3-oxoisoindolin-1-ylidine)propandinitrile derivatives can be used as an intermediate for synthesizing a new compound having good electro-optic characteristics and heat resistance.
Patent CA-2247765-A1 (CA)
Inventor: DEKEUSTER RICHARD MARK
IPC: F24H3/10
Filed: 1998-09-16
Abstract: A clamshell heat exchanger (10) is provided for use in a heating apparatus including a burner for producing hot combustion gas. The heat exchanger (10) defines a multi-pass flow passage (11) for the combustion gas and includes a first plate member (30) and a second plate member (32). The first plate member (30) has a first series of parallel ridges (36) and valleys (38a-b), with at least one of the valleys (38a) being deeper than other of the valleys (38b). The second plate member (32) faces the first plate member (30) and includes a second series of ridges (36) and valleys (38a-b) that are parallel to the first series of ridges (36) and valleys (38a-b), with at least one of the valleys (38a) of the second series being deeper than other of the valleys (38b) of the second series. A first pass (14, 16) of the multi-pass flow passage (11) is defined by a number N1 of the ridges (36) and valleys (38a-b) of the first and second series. A second pass (16,18) of the multi-pass flow passage (11) is defined by a number N2 of the ridges (36) and valleys (38a-b) of the first and second series. The at least one deeper valley (38a) of the first series cooperates with the at least one deeper valley (38a) of the second series to separate the second pass (16, 18) from the first pass (14,16).