baber/WOPTO huggingface dataset:
Patent CA-2234749-A1 (CA)
Inventor: NEVREKAR VENKATESH R
IPC: F16K/
Filed: 1995-10-16
Abstract: A valve assembly (100) comprises a valve body (110) having a fluid flow passageway (112-114) in communication with the valve body cavity (116) in which is disposed a flow control member (118) for selectively closing or opening the fluid flow passageway. A valve operator (150) actuates a stem (120) connected to the flow control member by a connecting means which allows axial movement of the stem (120) but substantially no rotary movement between the stem (120) and the flow control member (118). The flow control member (118) comprises stop means (130) to arrest axial movement of the stem (120) towards the flow control member (118) in order to transmit the stem force to the flow control member (118) so as to provide a better sealing function in the selected valve position. A stem moving means (152) associated with the valve operator and the steam causes the stem (120) to rotate and reciprocate. The valve operator (150) selectively moves the flow control member (118) to a flow closed position or to a flow open position.
Patent CA-2237455-A1 (CA)
Title: Foldable geostationary satellite antenna pointing guide and method
Inventor: AUTREY TIMOTHY N
IPC: G06C1/00
Filed: 1998-05-12
Abstract: In a preferred embodiment, a foldable geostationary satellite antenna pointing guide (Figure 4, 40), comprising: at least a first panel (42) including on a front surface thereof a first portion of a world map; a flexible transparent overlay panel (50) attached to said at least a first panel (42) and having printed thereon scales of degrees of azimuth and elevation, a central point thereof representing ninety degrees elevation; said transparent overlay panel (50) being foldable over said front surface of said at least a first panel (42) and moveable with respect thereto such that said central point can be positioned over the location of a first geostationary satellite (46) on said first portion of a world map, such that a user can locate said user's position on said first portion of a world map and read from said scales of degrees of azimuth and elevation, at said position, an optimum direction to point a radio antenna toward said first geostationary satellite (46).
Patent CA-2240694-A1 (CA)
Title: Ultrasonic apparatus
Inventor: ROBERTS ALLAN J
IPC: B06B1/02
Filed: 1998-07-09
Abstract: An ultrasonic apparatus useable for welding metal by vibrations in the ultrasonic frequency range, employs a horn dimensioned to be resonant as a full wavelength resonator for vibrations of a predetermined frequency traveling longitudinally therethrough. To increase the energy available, the horn is coupled to a pair of transducers, one transducer coupled to each of the radially disposed end surfaces of the horn.          During operation, one transducer must be in its longitudinal expansion mode when the other transducer is in its longitudinal contraction mode and vice versa.  In order to accomplish this, two substantially identical transducers are used, but the orientation of the piezoelectric disc or discs in one of the transducers is reversed with respect to the orientation of the disc or discs in the other transducer.
Patent CA-2241823-A1 (CA)
Title: Micromechanical optical switch and flat panel display
Inventor: STERN ERNEST
IPC: G02B26/08
Filed: 1997-01-03
Abstract: The invention provides an optical coupling switch and flat panel display including an array of such optical coupling switches. The optical coupling switch includes a light storage plate adapted to set up conditions for total internal reflection such that light injected into the plate is internally reflected. A light tap is disposed proximal to a coupling surface of the light storage plate for coupling internally reflected light out of the light storage plate and into the light tap when the light tap is brought into contact with the light storage plate coupling surface. The light tap is capable of movement in a direction perpendicular to the light storage plate in response to an applied electrostatic force. The optical coupling switch includes a scattering mechanism, such as a scattering surface or scattering medium, for scattering light in the light tap into a viewing volume. With this configuration, the optical coupling switch provides an elegantly uncomplicated geometry that accommodates a range of actuation schemes for efficiently producing high-speed optical switching. Also provided is an optical display in which an array of light taps are disposed proximal to a light storage plate coupling surface. Each light tap is adapted to move in response to an applied electrostatic force in a direction perpendicular to the coupling surface, and each light tap includes a scattering surface for scattering coupled light. A light source is disposed at an edge of the light storage plate for injecting light into the plate. Control circuitry is provided connected to the array of light taps for applying an electrostatic force to selected one or more of the light taps in the array.
Patent CA-2242499-A1 (CA)
Inventor: PRATT RONALD LEE
IPC: A01C7/08
Filed: 1998-08-14
Abstract: A plastic product tank for containing product under pressure has a lower funnel portion including a product outlet and an upper container portion having a product-containing capacity substantially greater than the lower funnel portion. The lower funnel portion and upper container portion are in substantially gas-tight communication with each other and the upper container portion of the tank includes side walls formed by a plurality of substantially planar surfaces adjacent to each other. Each interior angle between adjacent side walls of the upper container portion is greater than ninety degrees.
Patent CA-2246233-A1 (CA)
Title: Fluorescent orange azo pigments
Inventor: MERCHAK PAUL A
IPC: C09B67/10
Filed: 1998-08-27
Abstract: Orange azo fluorescent pigments and a process for a preparing same. Orange azo fluorescent pigments as a component of printing ink, coating, plastic compositions and articles of manufacture and used for controlling manufacturing operations.
Patent CA-2248467-A1 (CA)
Title: Molded polymer article having a hydrophilic surface and process for producing the same
Inventor: YASUDA TOKUGEN
IPC: C08J5/00
Filed: 1998-09-28
Abstract: A molded polymer article comprises a main molded body having on the surface thereof a hydrophilic polymer layer, the article being obtained by polymerizing both a monomer having a hydrophilic group and coated on the surface of a hydrophilic mold, and a polymerizable composition consisting essentially of a monomer and/or oligomer and placed in the mold.    The  hydrophilic   polymer   layer  has  excellent adhesiveness to the main body of the molded polymer article and  excellent  durability,  so  that  the  high  hydrophilic property can be maintained, even when the article is exposed to external forces such as friction, over a long period of time.   The  molded  articles  are  therefore  useful  as,  in particular, contact lenses.
Patent CA-2259169-A1 (CA)
Inventor: ENGELSMA JONATHAN R
IPC: H04M11/00
Filed: 1997-04-16
Abstract: Dans cette invention, l'utilisateur, après avoir eu accès (41) au système de communication, sélectionne (42) une option service de messagerie électronique pagée. En réponse, le système de communication répartit (43) un bloc logique de service à un noeud supplétif de service d'un système de messagerie électronique. Ce bloc logique de service est déposé (44) dans un magasin de bloc logique de service à spécificité du site, faisant partie du système de messagerie électronique. Une fonction de surveillance de messagerie électronique est établie (45) pour le système de messagerie électronique. Une fois établie cette fonction de surveillance, le système de messagerie électronique envoie (46) un accusé de réception au système de communication. L'utilisateur est ensuite informé par une notification (47) de la réception de l'accusé de réception.
Patent CA-2262681-A1 (CA)
Title: Optical waveguide filters
Inventor: ROBINSON ALAN
IPC: G02B6/34
Filed: 1997-10-08
Abstract: A distributed Bragg reflection pass-band filter in an optical fibre waveguide (170) is provided by grating elements (172) arranged to provide improved flatness of reflection pass-band, a high rate of roll-off, and reduced amplitude side-bands by the use of nonlinear chirp and apodisation profiles that are related such that the square of the coupling coefficient is substantially proportional to the rate of change of chirp.
Patent CA-2266870-A1 (CA)
Inventor: WANG ROBERT CHUENLIN
IPC: H04L25/03
Filed: 1999-03-25
Abstract: Dibits (i.e., pairs of bits) in an input data stream are converted into a modulation signal (e.g., a .pi./4-DQPSK modulation signal) using a technique that relies on pre-computed filter output values to reduce the processing required to generate each sample in the modulation signal. The pre-computed filter output values are stored in one or more look-up tables, which are accessed in real time during signal conversion to retrieve values as needed. In one implementation, the dibits, which are represented by complex values in a complex symbol space, are converted into two streams of state variables: one stream for the even symbols and one stream for the odd symbols. The two streams of state variables are used to generate address pointers that are used to access the pre-computed filter output values from the look-up tables. Addition/subtraction operations are then applied to the retrieved values to generate the real and imaginary parts of the complex samples in the modulation signal. By greatly reducing the computations involved in generating each complex sample in the modulation signal, the present invention can be used to reduce the costs of implementing the modulation process and/or increase the rate at which the input data stream is over-sampled, thereby reducing distortion in the modulation signal.
Patent CA-2267784-A1 (CA)
Inventor: MOYSE MARJORIE ANNE
IPC: G02C5/00
Filed: 1997-10-07
Abstract: Magnifying spectacles for cosmetic use include a crosspiece (2, 4) which extends across the face of the user and projecting upwardly from which are two magnifying lenses (12) whose size is not substantially larger than that of the human eye. The crosspiece includes a bridgepiece (8) which extends over the bridge of the nose of the user and whose apex is situated forwardly of the lenses (12). The crosspiece (2,4) is connected at each end to a respective side arm (16) which extends towards a position midway up the height of the ear of the user and terminates in an ear engagement portion. The ear engagement portion includes a portion (20) which extends upwardly along the front of the ear over a substantial proportion of its height. The eyebrows of the user are thus wholly exposed and may be plucked with the aid of the magnifying lenses (12) and a mirror. The lenses (12) are pivotally mounted on the crosspiece (2, 4) and may thus be pivoted in tum away from the associated eye to permit the application of cosmetics to that eye.
Patent CA-2269601-A1 (CA)
Inventor: FOWLER TIMOTHY JOHN
IPC: A61K8/42
Filed: 1997-10-23
Abstract: The present invention relates to a substantially dry, disposable, personal cleansing product useful for both cleansing and conditioning the skin or hair. These products are used by the consumer by wetting the dry product with water. The product comprises a water insoluble substrate, a lathering surfactant, and a water soluble conditioning agent. The invention also encompasses methods for cleansing and conditioning the skin or hair using these products and methods for manufacturing these products.
Patent CA-2270951-A1 (CA)
Title: A dissolution test method for solid steroidal pharmaceutical formulations
Inventor: DEGHETTO PAUL KEVIN
IPC: G01N33/15
Filed: 1997-11-07
Abstract: The invention provides for a method of determining the dissolution rate of a steroid from its solid pharmaceutical formulation. Said method comprises:  adding a steroidal formulation to a paddle assembly containing an aqueous solution of polysorbate 20, where the concentration of polysorbate 20 is about 0.025 to about 0.15 % weight/volume and the temperature of the assembly is about 37 ~C; removing aliquots and measuring the percentage of steroid in each aliquot.
Patent CA-2271020-A1 (CA)
Title: Marker with large barkhausen discontinuity
Inventor: YAMASAKI JIRO
IPC: G08B13/24
Filed: 1997-09-09
Abstract: A harmonic-type EAS marker (120) includes a wire segment (123) formed of cobalt alloy. To form the wire segment (123), the cobalt alloy is cast (30) as an amorphous wire, die-drawn (32) to a smaller diameter, and then annealed with application of longitudinal tension (34). The annealed wire is cut (36) to produce wire segments which have a magnetic hysteresis loop with a large Barkhausen discontinuity at a lower threshold level than has previously been achieved.
Patent CA-2272005-A1 (CA)
Inventor: ESTHER JEAN-CYRIL
IPC: G11C5/00
Filed: 1999-05-11
Abstract: L'invention concerne un procédé de fabrication d'un cube mémoire, comprenant l'empilement d'une pluralité de mémoires (31-39) et d'éléments de connectique (41) dans un moule assurant positionnement, et le moulage des mémoires et des éléments de connectique dans la résine, à l'intérieur de ce moule. En plaçant les mémoires et les éléments de connectique directement dans le moule, qui est conformé de sorte à assurer leur positionnement, on assure une fabrication plus simple et plus sûre. En outre, on obtient un cube mémoire dont la largeur et la hauteur sont très proches des dimension d'une mémoire, et dont l'épaisseur est sensiblement égale à la somme des épaisseurs des mémoires.
Patent CA-2275635-A1 (CA)
Title: Pesticidal 1-arylpyrazoles
Inventor: WU TAI-TEH
IPC: C07D401/04
Filed: 1997-12-18
Abstract: The invention relates to 1-phenylpyrazole derivatives of formula (I), wherein R1, R2, R3, R4 and X are as defined in the description, and to their use as insecticides.
Patent CA-2275967-A1 (CA)
Title: Vessel comprising a swivel assembly
Inventor: POLLACK JACK
IPC: B63B27/34
Filed: 1998-10-28
Abstract: The invention relates to a vessel comprising a swivel assembly wherein each swivel is individually connected to a support structure. As the swivels (10, 11, 12) are not interconnected in a weight-bearing manner, they can easily be removed from the assembly for maintenance purposes. Preferably the piping (28, 29, 30) extending within the central space of the swivel assembly is comprised of individual pipe segments which can be disconnected for easy removal of one swivel in the radial direction.
Patent CA-2277411-A1 (CA)
Title: Polymer secondary battery and method of making same
Inventor: OKADA SHINAKO
IPC: H01M10/0565
Filed: 1999-07-08
Abstract: A polymer secondary battery is disclosed. The battery uses, for at least one of the active material of positive electrode and the active material of negative electrode, a polymer-carbon composite material comprising powdered carbon having its surfaces coated with an organic compound polymer capable of adsorbing and desorbing protons electrochemically. The polymer secondary battery has a high rate of appearance of capacity and excellent cycle characteristics.
Patent CA-2278666-A1 (CA)
Inventor: DANNER JEFFREY B
IPC: B01J8/02
Filed: 1998-01-26
Abstract: A reactor (5, 15, 301) and process for the production of oxirane compounds by reaction of an olefin such as propylene with an organic hydroperoxide using a solid contact catalyst, characterized by the following features: (1) the reactor is divided into a series of separate zones (8, 10, 16, 19, 304, 311), each zone (8, 10, 16, 19, 304, 311) containing a bed of solid epoxidation catalyst; (2) about 25-75 % of the heat of reaction is removed by preheating cold reactor feed by direct contact with a heated recycle stream from the reactor; and (3) about 25-75 % of the heat of reaction is accounted for by a reaction mixture temperature rise of 20-100 °F and by vaporization of 15-40 of the net reactor product.
Patent CA-2280871-A1 (CA)
Title: Use of nitric oxide synthase inhibitors for the treatment of diabetes
Inventor: PIERCY VALERIE
IPC: A61P3/10
Filed: 1997-02-13
Abstract: A method for the treatment and/or prophylaxis of Type II diabetes, which method comprises the administration, to a human or non-human mammal, of an effective non-toxic pharmaceutically acceptable amount of an NO synthase inhibitor, such as aminoguanidine, or a pharmaceutically acceptable derivative thereof.
Patent CA-2282065-A1 (CA)
Inventor: MARCOCCIA BRUNO S
IPC: D21C3/24
Filed: 1999-09-08
Abstract: In the production of chemical pulp, such as kraft pulp, it is possible to reduce the amount of ancillary equipment, and/or the size of the continuous digester vessel, while achieving enhanced uniformity of treatment by avoiding "hang ups". Instead of providing vertical counter-current flow of liquid and comminuted cellulosic fibrous material being treated in the lower half of the digester, the counter-current flow may be a cross flow, that is substantially horizontal (e.g. radial) while the flow of the chip column is vertical. Regardless of the configuration of the digester vessel, a single pump may be utilized for all of the recirculations, or only a few pumps for all of the recirculations.
Patent CA-2282568-A1 (CA)
Inventor: IRVIN DAVID RAND
IPC: H04M1/72412
Filed: 1998-03-05
Abstract: An incoming call alert system for use with a portable communication device is disclosed as including an accessory unit physically separate from the portable communication device for providing an alerting signal, a wireless link between the portable communication device and the accessory unit, and circuitry electrically connected to operating circuitry of the portable communication device for providing a message exclusively to the accessory unit over the wireless link when an incoming call is received by the portable communication device, the message causing the accessory unit to activate the alerting signal. The circuitry further includes an interface for maintaining and terminating the electrical connection between the circuitry and the operating circuitry of the portable communication device, a transceiver for transmitting messages exclusively to and receiving messages exclusively from the accessory unit over the wireless link, and control logic for monitoring receipt of an incoming call by the portable communication device and activating the transceiver to transmit the message in response thereto. The accessory unit further includes a power source, a transceiver for receiving messages exclusively from and transmitting messages exclusively to the circuitry over the wireless link, a transducer which provides the alerting signal upon activation, and control circuitry for activating the transducer upon receipt of the message by the receiver via the wireless link.
Patent CA-2285337-A1 (CA)
Inventor: BROWN BRUCE
IPC: A61F13/472
Filed: 1998-03-30
Abstract: L'invention concerne une serviette hygiénique composite, constituée d'un élément absorbant primaire et d'un élément absorbant secondaire. L'élément absorbant primaire, qui a une longueur, une largeur et une épaisseur, comprend un élément absorbant primaire et une couche de protection perméable aux fluides superposée à l'élément absorbant primaire. L'élément absorbant secondaire, qui a une longueur, une largeur et une épaisseur, comprend une feuille perméable aux fluides tournée vers le corps, une feuille imperméable aux fluides tournée vers le vêtement et reliée à ladite feuille perméable aux fluides, et un élément absorbant secondaire positionné entre la feuille perméable aux fluides et la feuille imperméable aux fluides. L'élément absorbant primaire est fixé par un système de liaison sur le côté feuille perméable aux fluides tournée vers le corps de l'élément absorbant secondaire. Le rapport entre l'épaisseur de l'élément absorbant primaire et sa largeur est compris entre 0,05 et 1,5. L'élément absorbant primaire a la capacité d'absorber le flux menstruel quand la serviette hygiénique est appliquée sur un corps féminin en vue de son utilisation.
Patent CA-2285981-A1 (CA)
Title: Method for separating a plurality of flat objects arranged at least partially on top of each other, at a predetermined point
Inventor: MAEDER CARL CONRAD
IPC: B42F21/00
Filed: 1998-04-07
Abstract: On the surfaces of superimposed, flat articles (2) a static charge is produced by passing the superimposed articles (2) through an electric d.c. voltage field oriented substantially perpendicular to the principal surfaces of the articles. Due to the charging, electric forces of attraction between the surfaces of the articles increase the mutual adhesion. The effect of the static charging is reduced or prevented for at least one of two surfaces participating at a predetermined separation point, by treating this surface beforehand with an antistatic agent (3). Due to the antistatic agent there is no charge concentration on said surface or it is very rapidly compensated such that there is no adhesion increase at the separation point or it is much lower than between surfaces not participating at the separation point. Thus, at the separation point it is possible to displace the articles against one another with much smaller force expenditure. The method is particularly suitable for opening multipage printed products between two predetermined pages.
Patent CA-2286445-A1 (CA)
Inventor: GEORG ERICH
IPC: G05B17/02
Filed: 1999-10-18
Abstract: Memorized in an apparatus (10, 12, 14) for use in an industrial process, connectable to a central control unit (18) via a bus (16) for communicating data and control signals, is a software apparatus model (20, 22, 24) which contains a comprehensive mimic image of the apparatus including its parameters, functionality and sequence programs.
Patent CA-2286849-A1 (CA)
Inventor: MAULER-MACHNIK ASTRID
IPC: A01N43/653
Filed: 1998-04-06
Abstract: Ces nouvelles combinaisons de substances actives constituées d'un benzimidazol halogène de formule (I), dans laquelle Z désigne chlore ou brome, et des groupes (1 à 25) de substances actives énumérés dans la description possèdent de très bonnes propriétés fongicides.
Patent CA-2289190-A1 (CA)
Title: Composition and method combining an antidepressant with an nmda receptor antagonist, for treating neuropathic pain
Inventor: CARUSO FRANK S
IPC: A61K31/343
Filed: 1998-05-06
Abstract: The neuropathic pain alleviating effectiveness of an antidepressant is significantly potentiated by administering the antidepressant prior to, with or following the administration of a nontoxic NMDA receptor antagonist.
Patent CA-2293012-A1 (CA)
Inventor: BUTLER JOHN J
IPC: A63B63/00
Filed: 1999-12-15
Abstract: A miniature hockey goal net, which replaces the normal size hockey net and the goalie and is used for playing an alternate style of roller hockey or ice hockey, has a tubular steel frame with a hockey net mesh attached to the frame for trapping a hockey ball. The frame consists of two U-shaped pieces, one U-shaped piece which is vertical and forms the front opening of the net, the other U-shaped piece which is horizontal and forms the base of the net. The two U-shaped pieces are joined by two elbows, which are situated at the base of the two side pieces of the vertical U-shaped piece and are attached to the two side pieces of the horizontal U-shaped piece. A larger second opening for scoring is provided by reversing the position of the two U-shaped pieces, raising the horizontal U-shaped piece to the vertical position. An optional center back brace can be attached between the upper crossbar and the lower crossbar for additional support and weight.