baber/WOPTO huggingface dataset:
Patent CA-2282816-A1 (CA)
Inventor: BARR GERALD L
IPC: E06B1/10
Filed: 1999-09-21
Abstract: The invention is a prefabricated door assembly for installation in a rough-in door frame. The assembly includes a pair of vertically extending door jambs having inter-engaging casings and a header unit spanning the upper ends of the door jambs. The header unit includes a header board or jamb having inter-engaging horizontal casings. Both horizontal and vertical casings have pin nails protruding from their tongue portions which engage the jambs lightly during transport and installation prior to final nailing in place. The assembly also includes L-shaped brackets affixed to the upper outer corners which join and fasten the vertical and horizontal jambs together. The assembly may be packaged as a kit, which may include hinges, shins and/or shimming hardware.
Patent CA-2284043-A1 (CA)
Title: Light assembly
Inventor: WILSON GRAHAM JOHN
IPC: F21Y101/00
Filed: 1998-04-20
Abstract: A lighting assembly (10) which extends through the thickness of a wall (14) having a first side (16) and a second side (20) is described. The lighting assembly (10) comprises at least one light source (46) to illuminate an area on the first side (16) of said wall (14) and means being included to enable replacement of said light source from the second side (20) of said wall (14) wherein said means includes at least one duct (30) extending at least part of the way from the first side (16) of the wall (14) to the second side (20) of the wall (14); light source carrier means (50) on which said light source is mounted, said light source carrier means (50) and said light source (46) being movable through said at least one duct (30) from said second side (20) to said first side (16); moving means (80) to move said light source (46) and said carrier means (50) through said at least one duct (30); and, power supply means to said light source (46).
Patent CA-2285106-A1 (CA)
Inventor: SILVER DAVID M
IPC: G06F9/44
Filed: 1998-04-01
Abstract: A JAVA-based virtual machine that supports input method editor (IME) functionality in three contexts: (1) using JAVA-based IMEs with a JAVA virtual machine; (2) writing JAVA-based IMEs; and (3) integrating a JAVA virtual machine to system IMEs. The virtual machine includes a windows manager, an input method manager, one or more IMEs and/or keyboard drivers (KBDs), and a component. The virtual machine may also include an IME bridge for integrating the virtual machine with a system IME. The windows manager serves as a gateway between the operating system and the virtual machine. The input method manager (IMM) serves as a router between the windows manager and a plurality of IMEs and keyboards driver (KBDs). The IME includes a look-up table of composed characters that are indexed by Unicode keyboard commands. The component typically renders a user interface that allows the user to manipulate the composed characters returned by the IME. The functionality of the IME and the component may vary from platform to platform, and from user to user. The virtual machine can implement a predefined set of interfaces that allow the IME and the component to communicate with each other and with the windows manager and the input method manager. These predefined interfaces allow users to modify the functionality of the IME and component and integrate these modified elements with the virtual machine.
Patent CA-2287614-A1 (CA)
Title: Television receiver employing v chip system and method of displaying rating information in television receiver employing v chip system
Inventor: SHIOMI YOSHIHARU
IPC: H04N5/445
Filed: 1999-10-25
Abstract: A method of displaying rating information comprises the step of tuning in to a designated channel when a program selecting operation is performed and acquiring rating information, and the step of displaying the acquired rating information, together with a program image obtained by the tuning, on a display device.
Patent CA-2294914-A1 (CA)
Inventor: BENNETT ROBERT ALFRED
IPC: F16K15/14
Filed: 1998-07-06
Abstract: A duckbill valve is provided which includes a hollow cylindrical elastomeric body (2) with first (4) and second (6) ends. The first end (4) has walls (8) parabolically tapering to an elongate slit (10), the slit being surrounded by an upper and lower lip (12). The second end (6) has a non-uniformly round (e.g. oval) outer wall terminating in an open mouth. When inserted into a perfectly round apertured fitting, the non-uniformly round outer walled elastomeric body is bowed to form-fit the round configuration thereby forcing shut the lips and slit. Upon increased air pressure within the elastomeric body, the slit is forced open. In a further embodiment, the inner wall of the second end may be non-uniformly (e.g. oval) round. Insertion of a round tubular fitting within the non-round inner wall of the elastomeric body also achieves a bowed form-fit configuration which forces shut the lips and slit.
Patent CA-2296414-A1 (CA)
Title: Method for electronically selecting the dependency of an output signal from the spatial angle of acoustic signal impingement and hearing aid apparatus
Inventor: MAISANO JOSEPH
IPC: H04R3/00
Filed: 1998-07-14
Abstract: An acoustical beam former is proposed with at least two acoustical/electrical converters (2a, 2b) in a predetermined physical distance. The mutual phasing of the output signals of the two converters is detected (27) and is multiplied by a constant or frequency-dependent factor. In dependency (46, 48) from multiplied phasing and from at least one of the output signals of the converters (2a, 2b) there is generated an electric output signal which has a dependency from spatial impinging direction of acoustical signals to the converters (2a, 2b), as if the two converters were located at a virtual distance from each other which is different and especially considerably larger than the real physical distance they are mutually located.
Patent CA-2297970-A1 (CA)
Title: Process for the production of improved psa's
Inventor: AKELEY JAMES P
IPC: C08F2/22
Filed: 1998-07-31
Abstract: General purpose inherently tacky acrylic pressure sensitive adhesive polymers formed of alkyl acrylates, vinyl esters, and saturated carboxylic acids, having improved properties, a lower residual monomer content are formed by a sequential emulsion polymerization process in which 40 to 70 percent, typically 45 percent, of the monomers are incrementally added to a reactor as a first charge containing substantially all of the vinyl esters, the balance of the monomers being fed in a second incremental charge.
Patent CA-2298603-A1 (CA)
Inventor: DU YUHUA
IPC: C07F17/00
Filed: 1998-07-16
Abstract: Processes using heterogeneous adsorbents are disclosed for synthesis of sulfur-bridged molybdenum dimers with carbonyl containing cyclopentadienyl ligands and water soluble carboxylate salts thereof. Molybdenum sulfide dimers synthesized according to this invention are particularly useful agents for separation, recover, and/or purification of unsaturated hydrocarbons, in particular, relatively impure olefins produced by thermal cracking of suitable hydrocarbon feedstocks.
Patent CA-2300336-A1 (CA)
Inventor: ROBL JAMES M
IPC: C12N15/09
Filed: 1998-08-04
Abstract: L'invention concerne un système de culture permettant d'élaborer des cellules sexuelles primordiales ou des cellules germinales d'embryon par la mise en culture tissulaire prolongée de cellules sexuelles primordiales. Le système de culture considéré fait appel aux facteurs suivants : facteur inhibiteur des leucocytes (LIF), facteur basique de croissance des fibroblastes (bFGF), facteur de croissance insuline-like (IGF) et facteur des cellules souches (SCF). Les cellules germinales d'embryon résultantes sont utiles pour la production d'oiseaux transgéniques et chimères (en particulier, poulets et dindes) ainsi que pour le clonage.
Patent CA-2300862-A1 (CA)
Title: Microscope slide
Inventor: LORINCZ ANDREW E
IPC: G02B21/34
Filed: 1998-09-03
Abstract: A self-staining microscopic slide designed for immediate staining and viewing of cells in biological fluid and tissue samples, preferably with an epi-fluorescence microscope. The pre-prepared microscope slide (11) preferably has a supravital fluorescent stain (13) applied thereon, which is overlaid with a transparent film (16). During use, the film (16) is peeled back to expose the stain (13) so that a sample (14) can be applied thereon for intermixture therewith. The film (16) is then replaced over the stained sample to act as a cover slip for immediate viewing. The slide can include reference standards (19, 24) to facilitate microscope focusing and to allow measurements of cells and microorganisms.  An alternate embodiment provides a flexible microscope slide (11) which can be folded over such that a viewing portion (12) of the slide (11) can be placed against a specimen (21) to obtain a sample directly therefrom.
Patent CA-2301564-A1 (CA)
Title: Utilisation de shp-1 et shp-2 pour deceler des composes impliques dans la survie neuronale
Inventor: MARSH H NICK
IPC: G01N33/50
Filed: 1998-08-20
Abstract: Cette invention concerne l'identification de composés qui modulent l'activité biologique des SHP dans les neurones et qui, ainsi, régulent la mort cellulaire neuronale.
Patent CA-2306612-A1 (CA)
Title: Liquid container, liquid supply system, and method for manufacturing such liquid container
Inventor: HINAMI JUN
IPC: B41J2/175
Filed: 2000-04-26
Abstract: A liquid container comprises an inner wall that forms the liquid containing portion to contain liquid therein; an outer wall that forms the container to contain the liquid containing portion therein; and a liquid supply portion for supplying liquid from the liquid containing portion to the outside. Then, the inner wall is arranged to be a member to generate negative pressure in the liquid containing portion by being deformed following the leading-out of the liquid, and also, formed by the material having an elastic modulus change of 25% or less against the temperature change of use environment. With the liquid container thus structured, it is possible to implement the stable supply of liquid by stabilizing the characteristic of negative pressure in the liquid containing portion thereof irrespective of the temperature changes of use environments.
Patent CA-2307537-A1 (CA)
Inventor: MACBETH BRUCE F
IPC: H02H3/17
Filed: 2000-05-04
Abstract: Arcing faults are detected by sensing a voltage signal proportional to the rate of change, or di/dt, of the line current when the current steps into an arc fault. A current transformer is used to create the di/dt signal. The transformer has a selected core type, number of windings, and size which saturates at a pre determined level of primary current. The saturation acts to clamp the maximum di/dt voltage signal at the transformer output, and produce a constant output voltage. The constant output voltage eliminates a signal with a high di/dt, which may occur during a lamp burnout, from producing a much larger di/dt signal than that caused by an arc fault at a lower level of step current. The di/dt signal is passed through a high pass filter, which attenuates 60hz sinusoidal signals, after which the signal is integrated. The integrator acts to delay circuit interruption means until a predetermined number of arcs has occurred. When the integrator voltage reaches a predetermined voltage level, a trigger device activates an electronic switch, which in turn activates circuit interrupting means. One of the novel aspects of this invention is the elimination of the need for a DC power supply.
Patent CA-2310582-A1 (CA)
Title: Method and apparatus for displaying images
Inventor: REGO ALAN W
IPC: H04N1/00
Filed: 1998-11-04
Abstract: A method and apparatus for displaying a digital image of at least a portion of an object displayed in a film transparency having object identifying indicia thereon is provided. The apparatus uses a position sensitive panel having a surface for supporting the film transparency and further having an output for providing an output signal corresponding to the two dimensional spatial position of a selected point of interest on the panel. The apparatus is further provided with an object identifying indicia reader having an output for providing an output signal corresponding to object identifying indicia on the film transparency. The apparatus and method is particularly useful for fast screening of medical images with the added benefit of digital image enhancement capabilities when needed.
Patent CA-2311365-A1 (CA)
Title: Crosstalk reduction in a bidirectional optical link
Inventor: MATS GUSTAVSSON
IPC: H04B10/2507
Filed: 1998-11-05
Abstract: The present invention relates to a method and a device for crosstalk reduction in a communication link for simultaneous and bidirectional optical transmission.  In order to reduce crosstalk, two different optical wavelengths and two different electrical carrier frequencies are utilised. Applications of interest include optically based subscriber access systems and systems for optical interconnections in various information processing systems, such as computers.
Patent CA-2311815-A1 (CA)
Title: Double-barreled syringe with detachable locking mixing tip
Inventor: HAYMAN ROBERT G
IPC: B01F23/47
Filed: 1999-10-12
Abstract: A double-barreled syringe is provided which includes a mixing tip which is detachable after the tip is locked to the syringe body, so that the tip may be replaced by a locking cap. Locking occurs when a neck extending from the body between two shoulders is inserted into a bore in the tip (or, alternatively, the cap) and the tip is rotated so that two symmetrically opposed tabs attached to the tip are each received within a recess determined by a shoulder and a locking rib attached to the shoulder, and two diametrically opposed detents extending from the neck are each received within a recess in the bore surface.
Patent CA-2313144-A1 (CA)
Inventor: WELK PAUL
IPC: C22B3/02
Filed: 2000-06-30
Abstract: This invention has applications in the manufacturing of salts, analysis, mining, extraction and refining of transition metals, particularly Platinum Group Metals. A physical and electrochemical process in a compartmentalized electrolytic cell changes refractory transition metal compounds to readily soluble salts. The electrolytic cell has three compartments, a mixing chamber, a reduction chamber and an oxidation chamber. The mixing chamber contains the electrolyte, the substance processed, the reduction chamber and the oxidation chamber. In the reduction chamber, the negative electrode and the electrolyte produce a concentration of nascent hydrogen, which reduces the metals. In the oxidation chamber, the positive electrode and the electrolyte produce a concentration of nascent chlorine and oxidizing agents, which oxidize metals as soluble salts, or soluble complex ionic compounds. Convection currents or pumps circulate the substance processed through the various chambers.
Patent CA-2315098-A1 (CA)
Title: Improved locking pin for excavating equipment
Inventor: KREITZBERG JOHN S
IPC: F16B21/12
Filed: 1998-12-11
Abstract: An improved locking pin (10) for locking together two pieces of equipment (12, 14) through aligned locking apertures (16, 18). The pin comprises a steel casing (20), a steel insert (22) and an elastomer member (24). The two steel parts assemble together in a particular sequence and are adjusted so that when completely assembled, the insert (22) is locked into the casing (20) with the body of the casing (20) and the insert (22) being parallel and spaced from one another. The elastomer member (24) is interposed in the space defined between the casing and insert, and fills the space between the steel parts.      The assembled steel parts are firmly locked together by introduction of the elastomer member (24) into that the space. There is no adhesive joining the steel and elastomer members which makes the pin more amenable for use in corrosive environments and also eases manufacture of the pin components. A tightly constructed locking pin also avoids the problems of the components becoming loose or lost.
Patent CA-2315621-A1 (CA)
Inventor: LEIJON MATS
IPC: H01F29/14
Filed: 1998-09-29
Abstract: L'invention concerne un dispositif électromagnétique statique haute puissance doté d'une inductance variable qui présente un circuit magnétique présentant une zone de retenue du flux. Un enroulement principal et au moins un enroulement de commande entourent les parties de la zone de retenue du flux. Un dispositif de commande est couplé à l'enroulement de commande afin de modifier la répartition du flux. L'enroulement est constitué d'un câble isolant magnétiquement perméable de confinement du champ électrique.
Patent CA-2316783-A1 (CA)
Title: A multi-pattern antenna having independently controllable antenna pattern characteristics
Inventor: CHANDLER CHARLES W
IPC: H01Q5/47
Filed: 2000-08-28
Abstract: An antenna for providing a first antenna pattern at a first frequency of operation and a second antenna pattern at a second frequency of operation from first and second RF signals, respectively. The antenna included a horn which is dimensioned to generate the first antenna pattern from the first RF signal. A  conduit is located within the horn and is configured to propagate the second RF signal in a waveguide mode. A corrugated rod having a first and a second portion is associated with the conduit. The first portion of the rod is located inside the conduit and the second portion of the rod protrudes from the conduit into the horn.  The rod is configured to be responsive to the second RF signal and is operative to transition the second RF signal from a waveguide mode to a surface wave mode and propagate the second RF signal in a surface wave mode along the rod. The rod is configured to generate a second antenna from the second RF signal propagating in a surface wave mode. The first antenna pattern has first antenna pattern characteristics and the second antenna pattern has second antenna pattern characteristics. Changes in the dimensions of the horn will alter the pattern characteristics of the first antenna pattern but will have substantially no effect on the characteristics of the second antenna pattern. Changes in the length of the first portion of the rod will alter the pattern characteristics of the second antenna pattern but have substantially no effect on the pattern characteristics of the first antenna pattern generated by the horn.
Patent CA-2317142-A1 (CA)
Inventor: WEAVER CARL FRANCIS
IPC: H04B7/005
Filed: 2000-08-30
Abstract: A method and system for controlling downlink transmit power during a soft hand-off in a spread-spectrum wireless system supports independent power control of multiple forward channels to reduce fading. For a soft hand-off, a mobile switching center determines if a forward control channel is transmitted from different sectors of base stations than a forward data channel is. The base stations preferably adjust transmit powers of the forward channels grouped into different physical channels by receiving power control data over the allocated reverse power control channels to compensate for fading of the forward channels during a soft hand-off.</SDOAB >
Patent CA-2318377-A1 (CA)
Inventor: SJOBERG ERIC R
IPC: C12N9/90
Filed: 1999-01-15
Abstract: This invention provides methods for practical enzymatic conversion of GDP-mannose to GDP-fucose. These methods are useful for efficient synthesis of reactants used in the synthesis of fucosylated oligosaccharides.
Patent CA-2318569-A1 (CA)
Title: Impedance modulation signalling
Inventor: WOOD JOHN
IPC: H04L25/49
Filed: 1999-01-11
Abstract: Signalling between transmitting means and receiving means wherein signals from the transmitting means are subjected by the receiving means to deliberate reflections and resulting signals are transmitted back as meaningful at the transmitting means, different deliberate reflections having effects on said resulting signals that have different meanings at said transmitting means. Two-way signalling involves first signalling in one direction by sending signals with certainty of deliberate reflection thus resulting signals for return related to the signals sent according to the nature of the deliberate reflection and second signalling in the other direction by varying the nature of the deliberate reflection.
Patent CA-2319115-A1 (CA)
Inventor: MCMURRY LAURA M
IPC: C07K16/40
Filed: 1999-01-22
Abstract: Methods and mutants for identifying an antimicrobial compound which interacts with an ER polypeptide are disclosed. In particular, the method pertains to the screens for identifying an antimicrobial compound using FabI or InhA mutant cells or polypeptides.
Patent CA-2319486-A1 (CA)
Title: Renegeration of somatic embryos from plant tissues
Inventor: DOUGLASS L KATHERYN
IPC: A01H4/00
Filed: 1999-02-02
Abstract: This invention is directed to a method for producing somatic embryos on plant tissue. Furthermore, somatic embryos may be produced using explants obtained from a broad range of plant species, and using either juvenile or mature tissues. The method involves obtaining a stock tissue culture plantlet by exposing the plant tissue to a medium comprising salts, vitamins and an energy source; preparing an explant from the stock tissue culture plantlet; tranferring the explant to a proliferation medium comprising salts, vitamins, an energy source and at least one growth regulator for a period of time sufficient to produce a callused explant; and transferring the callused explant to a medium comprising salts, vitamins, an energy source and at least two growth regulators for a period of time sufficient to produce somatic embryos. Following this method somatic embryos are produced in significantly less time than observed using other somatic embryogenesis protocols. Plants produced from the somatic embryos are easily prepared. Since somatic embryos can be obtained from mature tissues, specific plants of agronomic importance comprising desirable traits, may now be clonally propagated. Furthermore, somatic embryos produced following the method of this invention may be used for the preparation of synthetic seed.
Patent CA-2322029-A1 (CA)
Title: Dual-polarized dipole antenna
Inventor: GABRIEL ROLAND
IPC: H01Q21/26
Filed: 1999-12-16
Abstract: The invention relates to a dual-polarized dipole antenna which consists of several separate dipoles. Said dipoles are preferably arranged in front of a reflector (33) and form a dipole square when viewed from above, whereby each dipole (111-114) is supplied with current via a symmetrical line (115-118).  The invention is characterized by the following features: The dual-polarized dipole antenna transmits electrical radiation in a polarization at an angle of +45~ or -45~ in relation to the constructively predetermined alignment of the dipoles (111-114); the ends of the symmetrical or approximately symmetrical lines which lead to the respective dipole halves (111a to 114b) are interconnected in such a manner that the corresponding line halves (115a to 118b) of the adjacent dipole halves (114b and 111a; 111b and 112a; 112b and 113a; 113b and 114a) which are vertical in relation to one another are electrically connected; and the supply of electric power to the diametrically opposite dipole halves results for a first polarization and decouples a second polarization which is orthogonal thereto.
Patent CA-2322509-A1 (CA)
Title: Garment stain removal product which uses sonic or ultrasonic waves
Inventor: SENAPATI NAGABHUSAN
IPC: C11D17/04
Filed: 1999-02-19
Abstract: A garment stain removal product and process is disclosed. The product includes a liquid cleaning composition which contains water, an organic solvent and a surfactant, an absorbent stain receiver, and a sonic or ultrasonic wave generating source for imparting sonic or ultrasonic waves onto stains on textiles. The sonic or ultrasonic wave source is, for example, a hand-held, pen-shaped device with a directed point to focus the sonic or ultrasonic waves at the stain to be removed.