baber/WOPTO huggingface dataset:
Patent CA-2318901-A1 (CA)
Title: Novel calcium channel drugs and uses
Inventor: GRIFFIN JOHN H
IPC: A61K47/48
Filed: 1999-06-07
Abstract: Novel multibinding compounds are disclosed. The compounds of this invention comprise 2 - 10 ligands covalently connected, each of the ligands being capable of binding to a ligand binding site in a Ca++ channel, thereby modulating the biological activities thereof.
Patent CA-2319564-A1 (CA)
Title: Methods and devices for separating catalyst from oxidation mixtures
Inventor: VASSILIOU EUSTATHIOS
IPC: C07C51/31
Filed: 1999-01-14
Abstract: This invention relates to methods for controlling the oxidation of hydrocarbons to dibasic acids, in the presence of a catalyst and a monobasic acid, by removing the catalyst from the reaction mixture, outside the oxidation zone, after the oxidation has taken place at least partially. Initially, the catalyst is partially precipitated and removed by reducing the water level in the reaction mixture and/or subjecting the reaction mixture to a temperature, at which or over which catalyst precipitates. After the initial partial precipitation of the catalyst, the remaining catalyst is subjected to a thermal treatment, during which at least part of the monobasic acid is removed leaving behind molten dibasic acids, in which, at least a major part of the remaining catalyst is precipitated, and it is removed. A minor part of remaining catalyst is removed by methods, which include but are not limited to ion exchange, precipitation with a base or appropriate salt, and electrodialysis. The precipitated catalyst in the three removal stages may be recycled in miscellaneous ways. The dibasic acid(s) may be removed at least partially before or after any catalyst precipitation stage.
Patent CA-2320780-A1 (CA)
Title: Energy guiding chain
Inventor: FISCHER KURT
IPC: F16G13/16
Filed: 1999-02-15
Abstract: The invention relates to an energy guiding chain (1) for housing and guiding ducts (2) between a fixed base (3) and a mobile driver (4). Said chain comprises two parallel plate-link lines consisting of plate-links (5) which are opposite to each other in a cross-wise direction and connected by means of transverse links (7). Those plate-links (5) of each plate-link line which are directly adjacent have overlapping joint areas so that they can be pivoted in relation to each other in the direction of bending of the chain. At least in an area of the chain adjacent to the driver (4) the chain links (7a, 7b, 7c, 7d, 7e, 7f, 7g) are linked to each other in a traction-stable manner in several sections by means of at least one element (6) which is substantially non-extendible in the longitudinal direction of the chain and flexible in the direction of bending of the chain. The invention aims to ensure that the chain functions reliably especially in hot and humid environments. To this end the chain links, in several sections of at least three links, and the driver (4) are fixed to the element(s) (6) in such a way that forces transmitted by the fixation to the chain links act approximately at the level of the pivoting axes of the chain links and the tension of the element(s) (6) in the longitudinal direction of the chain is such that it tends towards zero when the chain is thrust by the driver (4) or comes to a halt after a thrust.
Patent CA-2320950-A1 (CA)
Inventor: CATALDO DOMINIC A
IPC: A01M1/20
Filed: 1998-02-20
Abstract: Procédé et dispositif destinés à empêcher la décomposition et la détérioration d'objets en bois causées par des parasites, à l'aide d'un dispositif à libération régulée qui est constitué de polymères contenant des pesticides. Dans le procédé décrit, le dispositif à libération régulée est placé à proximité du bois. Le pesticide est progressivement libéré du dispositif et absorbé par la structure en bois. Le pesticide absorbé par le bois crée une barrière ou une zone d'exclusion empêchant la pénétration des insectes. Ledit dispositif maintient un taux minimal efficace de pesticides dans la barrière ou zone d'exclusion pendant une période prédéterminée.
Patent CA-2324175-A1 (CA)
Inventor: WERMER RICHARD I
IPC: F16L19/025
Filed: 2000-10-23
Abstract: A swivel coupling used to connect metal tubes to externally threaded fittings in hydraulic systems includes a swivel nut which is attached to a tail piece by deforming a collar portion of the swivel nut into a locking relationship with the tail piece. This is accomplished by having facing and aligned shoulders on the swivel nut and on the tail piece which prevent the swivel nut from axially disengaging from the tail piece when the swivel nut is rotated to thread onto the threaded fitting.  The tail piece has a flat end face which engages a flat end face on the fitting so that a leak-proof joint is formed between the tube and the fitting. The nut includes a frusto-conical portion that is engaged by a frusto-conical die surface on a split die ring in order to cam the collar portion toward the tail piece and align the respective shoulders thereof.
Patent CA-2325500-A1 (CA)
Inventor: CARPENTER IAN WILLIAM
IPC: H01M8/06
Filed: 1999-03-22
Abstract: A process for the catalytic generation of hydrogen by the self-starting, selfsustaining combination of partial oxidation and steam reforming of dimethyl ether comprises contacting a mixture of the dimethyl ether, an oxygencontaining gas and steam with a precious metal catalyst which is selective for the partial oxidation reaction. Suitable catalysts include platinum or rhodium supported on zirconia or a mixture of ceria and zirconia.
Patent CA-2327887-A1 (CA)
Inventor: ILOWSKI JOHN J
IPC: H03F1/32
Filed: 2000-12-07
Abstract: The present invention provides a biasing method and apparatus which provides bias circuits of radio frequency (RF) power transistors with a low reactive impedance at low frequencies to reduce hysteresis related distortion without affecting the transistor input or output impedance or any impedance matching network which may be used. In one embodiment, the invention is incorporated in a lateral diffused metal-oxide semiconductor (LDMOS) transistor to reduce hysteresis brought about by a drain bias circuit without any impact on the transistor output impedance. By removing the effect of the bias circuit at RF frequencies, the bias circuit can be designed with a low reactive impedance at low frequencies without any material consequences on the transistor output impedance. With a low enough reactive impedance, the hysteresis introduced by the bias circuit is substantially reduced. An auxiliary bias feed external to an RF transistor package is also embodied.
Patent CA-2328940-A1 (CA)
Title: Soil test
Inventor: JONES KEVIN CHRISTOPHER
IPC: G01N33/24
Filed: 1999-04-16
Abstract: A test for determining the bioavailable fraction of an organic pollutant present in soil comprises determining the fraction of the organic pollutant present in the soil which may be extracted by a cyclodextrin or derivative thereof.
Patent CA-2330457-A1 (CA)
Inventor: PETIT-CLAIR CARINE
IPC: C10G67/00
Filed: 2001-01-02
Abstract: Procédé d'élimination de mercure et éventuellement d'arsenic d'une char ge hydrocarbonée comprenant:  1 ) une distillation de la charge hydrocarbonée de façon à obtenir au moins une coupe légère et au moins une coupe lourde.  2) un traitement d'au moins une dite coupe lourde lequel traitement comporte  deux étapes - une première étape de mise en contact de la coupe dite lourde avec de l'hydrogène et un catalyseur. - une deuxième étape consistant à faire passer l'effluent de la première éta pe sur une masse de captation de mercure, éventuellement d'arsenic.
Patent CA-2333226-A1 (CA)
Title: Toothbrush with fluorescence means for locating dental plaque
Inventor: SCHOPPLEIN MICHAEL
IPC: A61B5/00
Filed: 1999-05-12
Abstract: An apparatus for detecting biological deposits on the surface of a tooth. Th e device has illumination means to direct exciting radiation onto a test tooth  surface and detection means to detect fluorescence emission from the test tooth surface at a wavelength associated with that of auto fluorescence emission from clean tooth surface. The intensity of the said fluorescence emission from the test tooth surface is compared with an intensity of auto fluorescence emission from clean tooth surface and the comparison is associated with the presence of deposits on the test tooth surface. The devi ce is preferably embodied in a toothbrush which indicates to the user that deposits are present and are being removed.
Patent CA-2335123-A1 (CA)
Title: Check weighing apparatus and method
Inventor: PETTY MICHAEL
IPC: G01N24/00
Filed: 1999-06-24
Abstract: A check weighing system is provided which can check weigh samples (1) on a production line. The check weighing system comprises a magnet (13) for creating a static magnetic field over an interrogation zone for creating a net magnetisation within a sample (1) located within the interrogation zone and an RF coil for applying an alternating magnetic field over the interrogation zone for causing excitation of the sample (1) within the interrogation zone according to the principles of NMR. The check weighing system also comprises a sensor for sensing the energy emitted as the sample relaxes back to an equilibrium state after excitation as the samples pass through the interrogation zone on a conveyor belt (9) forming part of the production line.  The sensed signal from the sample (1) is then compared with calibration data which is obtained for at least one similar sample of known mass, which calibration data relates the mass of the similar sample to the corresponding signal output by the sensor, to provide the indication of the mass of the sample.
Patent CA-2335607-A1 (CA)
Title: Ohai technology user interface
Inventor: MAILMAN DANIEL S
IPC: G06F1/16
Filed: 1998-06-25
Abstract: A variety of methods and systems for presenting and delivering user application input choices. One-handed or vocal user input (1) provides chords or syllables (21). The invention includes systems and methods for presenting user application input choices, chord or syllable based apparatus and sub-system for generating user application input choices in response to input signals associated with chords or syllables (21). The chord blocks (21) have two parts: a row (23) on the top called the chord map and a large of rectangle (24) below called the selecting cell.      One embodiment of input device resembles a joystick (1) and includes a base (2) and a key carrier (3) extending from the base (2). A single key (4) is provided along the top of the carrier, and four keys (5-8) extend widthwise along a side surface. A system presents and delivers user application input choices. An input device receives chords and syllables (21). A processor associated with the input device (1) receives chords or syllables (21) and generates input signals, a second processor for receiving and evaluating the input signals and for sending a user application signal to the user application processor of the computer.
Patent CA-2336592-A1 (CA)
Title: Cell lines for the propagation of mutated herpes viruses
Inventor: COFFIN ROBERT STUART
IPC: A61K35/76
Filed: 1999-08-03
Abstract: A process for propagating a mutant herpes virus having a mutation in its endogenous HSV VP16 gene or a homologue thereof, which process comprises infecting a cell line with the mutant herpes virus and culturing the cell line, wherein the cell line comprises a nucleic acid sequence encoding a functional herpes simplex virus (HSV) VP16 polypeptide, or a homologue thereof, operably linked to a control sequence permitting expression of the polypeptide in said cell line; the nucleic acid sequence being (i) capable o f complementing the endogenous gene and (ii) unable to undergo homologous recombination with the endogenous gene. In addition, the present invention provides cell lines which can be used for the growth of mutant herpes viruse s which have defects in certain immediate early genes together with mutations in VP16 or homologue thereof.
Patent CA-2337072-A1 (CA)
Inventor: KERKHOF PIETER THEODORUS
IPC: C07D503/00
Filed: 1999-07-13
Abstract: La présente invention concerne un procédé de préparation d'un sel aminé d'acide clavulanique et sa transformation en un sel ou un ester pharmaceutiquement acceptable. Pendant la phase de cristallisation du sel aminé d'acide clavulanique, on ajoute soit une solution renfermant de l'acide clavulanique au sel aminé, éventuellement avec un co-solvant, soit les deux réactifs ensemble dans une cuve de cristallisation. L'invention concerne également l'application au processus de cristallisation d'un profil de température (à diminution dans le temps), d'un profil de vitesse d'adjonction (à augmentation dans le temps) et d'un profil du rapport sel aminé/acide clavulanique (à augmentation dans le temps).
Patent CA-2341043-A1 (CA)
Inventor: CARUSO CARLO
IPC: A01K63/00
Filed: 2001-03-18
Abstract: The invention is a miniature aquarium built on a tractor-trailer. In this patent we will describe the miniature aquarium built on a tractor-trailer of a miniature 18-wheeler. The wheels on the vehicle will be locked for security. There is a removable top with breathing holes on the aquarium. The front end of the vehicle swivels. The aquarium will contain living animals, plants and gravel.
Patent CA-2342140-A1 (CA)
Inventor: GIEN BERNARD LIONEL
IPC: E21B4/14
Filed: 2001-03-27
Abstract: The invention concerns a down the hole drill hammer assembly providing a full piston area exposure to driving fluid pressure by the omission of the usual finger valve from the upper piston area and providing the piston with blind bores at each end and passages through the piston wall enabling predetermined communication between the blind bores for exhausting pressure fluid through the drill bit assembly. Fluid transfer passages are also provided in the inner wall of an outer wear sleeve of the drill hammer assembly.
Patent CA-2342474-A1 (CA)
Title: Image sensor with a voltage switching circuit for low afterglow
Inventor: SHINOTSUKA SUKEYUKI
IPC: H04N5/335
Filed: 2001-03-30
Abstract: Disclosed is an image sensor consisting of light sensor circuits arranged to form an array of pixels, each of which produces in a photoelectric converting element a sensor current proportional to the quantity of light falling thereon and converts the sensor current into a voltage signal by a MOS type transistor with a logarithmic output characteristic in a weak inverse state, wherein a means for changing over a drain voltage of the transistor for each light sensor circuit to a value lower than a normal value for a specified time to remove a charge accumulated in a parasitic capacity of the photoelectric converting element to initialize the circuit before detecting a light signal. The image sensor can obtain a voltage signal corresponding to the quantity of incident light even if the sensor current was rapidly changed, thereby eliminating the possibility of occurrence of afterglow of each pixel even at a small quantity of incident light.
Patent CA-2342559-A1 (CA)
Title: Method and device for the reception of broadcast contents by subscribers
Inventor: REICHENBACH JOERG ARNT
IPC: H04N7/16
Filed: 2001-03-30
Abstract: The invention relates to a method which is new and improved compared with the prior art, and to a device adapted thereto, for the reception of broadcast contents by subscribers which provide both for the reception of traditional broadcast programmes and for direct subscriber-specific consideration in the assembly of programmes.      To this end, it is provided to separate at least one first signal sequence with information blocks ("a" to "k") embedded therein from a number of broadcast signal sequences (3, 5, 6, 7, 8, 9) having defined signal characteristics, optionally to store the information blocks ("a" to "k") obtained and to access information blocks ("a" to "k") embedded in the first signal sequence and/or stored, in dependence on chaining information, in such a manner that information blocks combined in accordance with the chaining information are supplied to a reproduction device. A correspondingly adapted device according to the invention comprises a receiving device (24) for separating at least the first signal sequence, a device (25) for storing information blocks ("a" to "k") and a processor device (26) which, in dependence on chaining information, controls a selection device (27) for accessing information blocks ("a" to "k") embedded in the signal sequence and/or stored, in such a manner that information blocks ("a" to "k") selected in accordance with the chaining information can be successively supplied to a reproduction device.
Patent CA-2342678-A1 (CA)
Title: Device for breaking nicks connecting two edges of a cutting line
Inventor: LOEWENSBERG DENIS
IPC: B26D1/24
Filed: 2001-03-29
Abstract: This device comprises a frame carrying means for conveying blanks along a substantially planar path and two parallel shafts (10, 11), which are mounted so as to be rotatable on opposite sides of the plane of the path and comprising tool supports (19a, 19b, 20a, 20b) for inducing a shearing between the adjacent edges of a cutting line during their displacement, in order to break nicks on the cutting line. Each parallel shaft (10, 11) comprises at least one tool support (19a, 19b, 20a, 20b) for connecting the shearing tools to the respective shafts (10, 11) and means for angularly (10a, 11a) and longitudinally positioning these tool supports (19a, 19b, 20a, 20b) on the respective shafts (10, 11).
Patent CA-2347930-A1 (CA)
Inventor: KASHIWAGI KOICHIRO
IPC: H04M1/00
Filed: 2001-05-16
Abstract: A telephone set is provided which can prevent a user of the telephone set from having a distrust in its operations, can prevent missing of a head of a transmitted speech and can make the user free from stresses.      A control section, when detecting an off-hook operation, instructs a tone generator and a codes to stop a transmission of an incoming call and simultaneously instructs, using an awaiting voice generation instructing function section, the tone generator to produce a signal voice informing an awaiting state and the codes to transmit it to a handset. At the same time, the control section generates an off-hook signal and transmits it to a packeting section. The off-hook signal is incorporated in the packet to be transmitted by the packeting section and is transmitted from a packet network interface to a packet network.
Patent CA-2351921-A1 (CA)
Inventor: KAFRAWY ADEL
IPC: B29C45/26
Filed: 2001-06-27
Abstract: A method and an apparatus is disclosed for forming a one-piece introducer needle having a member portion and a needle by feeding a molten polymer into a cavity of a mold.
Patent CA-2352077-A1 (CA)
Inventor: GROMALA DAVID S
IPC: G06K19/07
Filed: 2001-07-04
Abstract: A lumber product is described having electronically readable grade and or strength information encoded integrally with the product. The method of making the product is also included within the scope of the disclosure. Information on lumber properties may be determined by known machine or X-ray grading methods. This is transferred to one or more programmable and remotely readable microchips that are attached to the individual piece of lumber. The method permits much more information to be included than is conventionally grade stamped on the piece; e.g., compressive or tensile strength, dimensions, prediction error, and other properties.
Patent CA-2352815-A1 (CA)
Title: Packing article, particularly for pre-baked and frozen dough products
Inventor: PEDERSEN STEEN
IPC: B65D81/34
Filed: 1999-09-15
Abstract: There is described a packing item (2), especially for prebaked and/or frozen dough items, e.g. pizzas, calzones, and pies, which packing item (2) at the side facing the dough item is provided with a so-called susceptor coating, for example consisting of a polyester coated, patterned metallizing or metal coating where a bottom part (4) of the packing item (2) is designed with a number of ventilation openings (8) around a central area (10).
Patent CA-2353327-A1 (CA)
Title: Behind panel mount, directional lighting bracket
Inventor: GLOISTEN JENNIFER L
IPC: F21W107/30
Filed: 2001-07-20
Abstract: A lighting bracket assembly has a base, a lens holder, a retaining ring and a light housing. The base has a locking channel and a top edge radiused to define a first sphere. The lens holder is disposed within the locking channel and is adapted to provide upon installation of the assembly an external surface continuous with a surface defining an opening into which the assembly is installed. The retaining ring is fastened to the base and biases the light housing. The light housing comprises a back portion with an outer circumference and a plurality of curved wing members defining the contour of a second sphere concentric to the first sphere extending from the back portion along the outer circumference. The light housing is adapted to rotate through an angular range of up to 20 degrees upon application of force against the bias of the retaining ring.
Patent CA-2355355-A1 (CA)
Inventor: LECLERC OLIVIER
IPC: H04B10/2507
Filed: 2000-10-12
Abstract: The invention concerns the generation of optical carriers in optical transmission systems with RZ signals. It concerns a device for generating RZ signals, comprising optical sources delivering wavelength multiplexed input signals, an optical clock delivering a clock signal, and an optical gate receiving on its input the multiplexed optical signals and on its control input the clock signal. The optical gate delivers in output RZ signals. The optical gate is a loop non-linear mirror with one or two optical amplifiers, and one or two control inputs for injecting into the loop the clock signal. The invention enables to generate quality RZ carriers, from a single optical clock.
Patent CA-2356017-A1 (CA)
Inventor: LI JIN
IPC: G06F9/44
Filed: 2001-08-29
Abstract: A wizard user interface capable of being cancelled and later resumed without  loss of data is disclosed. Canceling from the wizard prior to its completion will  optionally cause data entered on any of the wizard's pages to be saved to a file and stored i n non-volatile memory. Subsequent invocation of the same wizard user interface will optionally cause the data to be read from the file and repopulated into the wizard's pages to restore the cancelled wizard to its pre-cancellation state. The user interface according ly permits data entry to be performed in phases, with the wizard being exited between phases .
Patent CA-2356533-A1 (CA)
Title: Inhibitors of the bitter taste response
Inventor: MARGOLSKEE ROBERT F
IPC: A23L27/00
Filed: 1999-12-22
Abstract: The present invention relates to methods for identifying inhibitors of the bitter taste response, and by methods of using such inhibitors to either blo ck the perception of bitterness and/or promote the perception of a sweet taste.  The inhibitors of the invention may be used as flavor enhancers in foods and  pharmaceuticals. The methods of the invention may further be used to characterize the gustatory perception of novel tastants.