baber/WOPTO huggingface dataset:
Patent CA-2256798-A1 (CA)
Inventor: AMANO KENITI
IPC: C23C8/14
Filed: 1999-01-07
Abstract: The invention provides a steel product having superior weathering which is coated with a rust layer containing 50 or more weight % of non-crystalline rust, a method of producing the steel product, and a method of forming weathering protective rust on a material surface of the steel product. A material of a steel product is placed in an atmosphere in which the dew point is kept constant and the temperature of the steel product material is repeatedly varied between a temperature range of 5°C or more higher than the dew point and a temperature range of 5°C or more lower than the dew point. Weathering protective rust is thereby formed on the material surface of the steel product and a steel product having superior weathering is obtained. Preferably, the atmosphere contains 15 to 50 volume % of oxygen gas, and the temperature of the steel product is varied at a rising rate of 0.1 to 2°C/minute and a lowering rate of 0.01 to 2°C/minute. Alternatively, a desired steel product can also be obtained by placing a material of the steel product in an atmosphere containing 15 to 50 volume % of oxygen gas, keeping constant the dew point in the atmosphere, and keeping the temperature of the steel product material in the atmosphere at a certain value in a temperature range between a temperature 5°C lower than the dew point and a temperature 20°C  lower than the dew point; or by placing a material of the steel product in an atmosphere containing 15 to 50 volume % of oxygen gas, and forming and keeping a water film with a thickness not more than 500 µm but not less than 50 µm on a material surface of the steel product.
Patent CA-2261330-A1 (CA)
Title: Method and apparatus for removably inserting an electronic tire tag into a tire
Inventor: RENSEL JOHN D
IPC: B60C19/00
Filed: 1999-02-09
Abstract: An improved method and apparatus permits the insertion and removal of an electronic monitoring device from a tire, while securing the electronic monitoring device to the tire so that stress, strain, impact, cyclic fatigue and vibration are minimized. After a rubber patch is vulcanized, the patch is permanently assembled to the inner liner of a vulcanized tire by affixing it to the tire inner liner. An electronic monitoring device, after having been encapsulated in a suitable rigid potting material to form a rigid tag, is fitted with a power source to form a tag assembly in a shape which allows for insertion into a cavity in the patch. The tag is carefully inserted into the cavity housing. The tag assembly is locked into place within the cavity using a suitable removable locking means.
Patent CA-2261416-A1 (CA)
Title: Containers and caps having tamper-evident liners
Inventor: FLANAGAN THERESE ANN
IPC: B65D51/20
Filed: 1999-02-09
Abstract: The present invention provides containers and container caps for salad dressings, ketchup, barbecue sauces and other dispensable contents, which have liners which indicate whether or not the containers have been tampered with, and which may be removed by the user without the use a knife or similar tool.
Patent CA-2263385-A1 (CA)
Title: Conception de lampes electroluminescentes
Inventor: FELDMAN MICHAEL C
IPC: H05B33/10
Filed: 1997-08-14
Abstract: Cette invention se rapporte à la conception de lampes électroluminescentes et à des procédés de fabrication de telles lampes. Les lampes de la présente invention présentent une structure laminaire incorporant une couche électriquement conductrice à travers laquelle sont ménagées une ou plusieurs ouvertures séparées par des éléments conducteurs. Lesdites ouvertures ont de préférence une distance minimale d'un bord à l'autre qui est inférieure à 0,005 pouce environ et les éléments conducteurs possèdent une largeur inférieure à 0,002 pouce. Les lampes de la présente invention peuvent également présenter une structure "iso-plane" incorporant une couche électriquement conductrice munie d'un ou de plusieurs canaux séparant ladite couche en au moins deux éléments électriquement conducteurs et une matière électroluminescente disposée entre lesdits éléments électriquement conducteurs. Il est possible de fabriquer lesdites lampes de structure laminaire ou iso-plane au moyen de techniques d'impression et, en ce qui concerne les lampes iso-planes, au moyen de techniques d'attaque corrosive. Il est possible de modifier de manière définitive à la fois les lampes laminaires ou iso-planes imprimées au moyen de techniques de formage de feuilles telles que le formage sous vide ou le formage sur moule positif.
Patent CA-2263421-A1 (CA)
Inventor: PATEL UMESH H
IPC: C12N5/071
Filed: 1997-08-22
Abstract: A graft prosthesis, materials and method for implanting, transplanting, replacing, or repairing a part of a patient. The graft prosthesis includes a purified, collagen-based matrix structure removed from a submucosa tissue source. The submucosa tissue source is purified by disinfection and removal steps to deactivate and remove contaminants, thereby making the purified structure biocompatible and suitable for grafting on and/or in a patient.
Patent CA-2266969-A1 (CA)
Inventor: BEDARD ROBERT L
IPC: C01B37/00
Filed: 1999-03-25
Abstract: Ammonium ions are selectively removed from an aqueous stream by contacing the stream at adsorption conditions with a new family of crystalline molecular sieves having a microporous structure of ZrO3 octahedral units, and at least one of SiO2 tetra-hedral units and GeO2 tetrahedral units which can, optionally, contain M metals such as titanium, niobium, or tin. These novel molecular sieves adsorbents are prepared hydrothermally from a reaction mixture composed of reactive sources of the components.
Patent CA-2269458-A1 (CA)
Inventor: CHATELAIN MICHEL
IPC: F02B75/34
Filed: 1999-04-21
Abstract: Le moteur comprend au-moins deux cylindres 2 disposés à plat et opposés l'un à l'autre, un vilebrequin 9 pour transmettre à l'arbre de sortie du moteur l'énergie fournie par les explosions dans les cylindres 2. Un embiellage 18 rigide relie le vilebrequin 9 aux pistons 17 mobiles dans les cylindres 2. L'embiellage 18 est monté directement sur le vilebrequin 9 qui est monobloc, sans patin de glissement. Le fond de chaque cylindre 2 se termine par un tronc de c8ne dont le sommet détermine, avec une extrémité du piston 17, une lumière d'échappement qui se ferme avant les lumières de transfert, en déclenchant une forte dépression et une suralimentation du moteur. Le moteur selon l'invention est plus léger, plus fiable et d'un moindre prix de revient.
Patent CA-2269914-A1 (CA)
Inventor: KAMINSKA BOZENA
IPC: G01R31/3183
Filed: 1998-06-02
Abstract: In the method for constructing a fault dictionary, a description of the circuit is first made. A list of faults is extracted from this description of the circuit, and a fault-free circuit distribution of an output parameter of the circuit is calculated in response to the circuit description. A faulty circuit distribution of the output parameter is calculated in response to the faults of the list, and a fault value is calculated from the fault-free and faulty circuit distributions. The calculated fault value is stored in the fault dictionary in view of subsequently specifying a test vector for application to the circuit in view of testing this circuit. To specify test vectors in view of testing a given circuit, (a) a set of stimuli is first selected and then (b) a stimulus of this set is selected, (c) a fault from a list of faults of the circuit is selected, (d) a fault value related to the selected fault and stimulus is found in a fault dictionary, (e) the fault value found in step (d) is compared to a typical fault value, (f) whether the selected fault is detected or undetected by applying the selected stimulus to the circuit including the selected fault is determined in accordance with the result of the comparison of step (e), (g) steps (b, c, d, e and f) are repeated for each pair of stimulus and fault; and (h) test vectors are built from the stimuli of the set most susceptible to detect faults in the circuit.
Patent CA-2269927-A1 (CA)
Title: Method and apparatus for transmitting packets and data frames
Inventor: KAWAKAMI HIROSHI
IPC: H04W72/04
Filed: 1998-09-11
Abstract: A timing controller (22) generates timing information Tf when a packet transceiver (21) sets up a connection so that packets may be evenly dispersed, and informs the packet transceiver (21) and a base station (3) of the timing information (Tf). The packet transceiver (21) generates a packet in accordance with a frame offset value specified by the timing information (Tf). Therefore packets arrive at a packet multiplexer in a packet transmission period at averaged timings. The waiting time of the packet multiplex transmission is shortened. Therefore, a transmission link (L1) can be efficiently used while satisfying the service quality demanded.
Patent CA-2270017-A1 (CA)
Title: Rotary pump top drive
Inventor: TESSIER LYNN P
IPC: F04B47/02
Filed: 1999-04-26
Abstract: A high torque drivehead apparatus is provided for driving a downhole rotary pump. The drivehead utilizes a switched reluctance motor having a stator and frame secured to the wellhead. The motor's rotor is fitted with a concentric hollow drive shaft for accepting the rod string's polish rod. Further, the rotor is supported from the frame with thrust bearings for supporting the rod string. In operation, the drivehead provides consistent torque at a wide range of speeds including nearly zero rpm. Upon power failure, backspin of the rod string does not result in dangerous speed magnification at the drivehead and thus is not a threat to safety.
Patent CA-2272777-A1 (CA)
Inventor: HAMIEL CHARLES ELMER
IPC: B60C9/20
Filed: 1999-05-20
Abstract: The belts of the reinforcing structure of a pneumatic tire are reinforced with high strength, light weight aramid cords having a linear density of 420 to 1100 dTex, said cords having a twist of 315 to 551 TPM (8 to 14 TPI). In alternative embodiments, overlay material may be incorporated into the belt reinforcing structure. The use of the high strength, lightweight cords reduces the material in the tire and makes possible a tire construction that has reduced gauge, less heat buildup, lighter weight and has improved handling properties and high speed properties. An illustrated embodiment of the tire has a belt reinforcing structure comprising a folded belt folded around a cut belt.
Patent CA-2273346-A1 (CA)
Title: Folding table release latch apparatus
Inventor: SCHWINGHAMMER SCOTT
IPC: A47B3/00
Filed: 1999-05-31
Abstract: A folding leg apparatus is provided to mount a leg to an article of furniture, such as a tabletop, so that the leg can be moved between extended and retracted positions. The table leg has a pair of upright bars disposed apart from each other. the apparatus includes a pair of support brackets mounted to the underside of the tabletop and straddling the upright bars of the leg. A pair of swivel brackets and a pair of brace links are pivotably mounted at opposite ends of each support bracket. A pair of pivot rods are attached to the upright bars adjacent the free end of the leg, and the swivel brackets and brace links are pivotably connected to a corresponding pivot rod. The apparatus includes a latch and release mechanism that includes a release lever having an actuator plate positioned within the envelope of the support brackets. The release lever includes a pair of lever arms that each define a locking notch for receiving one of the pivot rods therein to lock the leg in its upright position. The latch release mechanism further includes a torsion spring operatively connected between the release lever and the support brackets to bias the release lever to a position in which the locking notch captures the pivot rod.
Patent CA-2275096-A1 (CA)
Title: System and method of managing competitive price information
Inventor: GOODWIN JOHN C III
IPC: G06Q30/00
Filed: 1999-06-16
Abstract: A system and method of managing competitive price information which adjust prices which are higher than competitive prices and which display a promotional message if prices are lower than competitive prices. The system includes a plurality of electronic price labels associated with a plurality of items for displaying price information about the items, a storage medium containing a number of competitive price data files containing an item identification number and a competitor price for each of the items, and a computer which obtains the competitor prices from the competitive price data files, reads current prices of the items from a price look-up (PLU) data file, determines whether the current prices are greater than the competitor prices, and for each current price which is greater than the corresponding competitor price, changes the current price in the PLU data file to a new price based upon predetermined rules, and sends a message to the EPL associated with the item to display the new price.
Patent CA-2276133-A1 (CA)
Title: Method for making tubular containers
Inventor: MACK ROBERT
IPC: B29C65/00
Filed: 1998-01-16
Abstract: In the manufacture of multichamber tubular containers it has been found that the inner divider walls (12) should be bonded to the exterior wall (10) by means of a band sealing method. In the band sealing method there is a band (30) that contacts the upper film and a band (32) that contacts the lower film that are to be bonded. In the present processes the upper band contacts the inner divider wall while the lower band contacts the exterior surface of the outer wall of the tubular container. In order to prevent the marring or otherwise putting a defect into the exterior surface of the outer wall the temperature of the lower band is maintained at a lower temperature than the upper band. This will decrease the temperature of the exterior surface of the outer wall and prevent imperfections in the exterior surface of the outer wall. The advantage is a multichamber tubular container without any imperfections in the exterior surface. This enhances the overall appearance of the tubularcontainer.
Patent CA-2276525-A1 (CA)
Inventor: READER VALERIE A
IPC: A61P17/00
Filed: 1998-01-08
Abstract: This invention relates to substituted bis-acridines and related compounds which are ligands, in particular, antagonists, of the CCR5 receptor. In addition, this invention relates to the treatment and prevention of disease states mediated by CCR5, including, but not limited to, asthma and atopic disorders (for example, atopic dermatitis and allergies), rheumatoid arthritis, atherosclerosis, psoriasis, autoimmune diseases such as multiple sclerosis, and inflammatory bowel disease, all in mammals, by the use of substituted bis-acridines and related compounds which are CCR5 receptor antagonists. Also, since CCR5 is a co-receptor for the entry of HIV into cells, selective receptor ligands may be useful in the treatment of HIV  infection.
Patent CA-2276632-A1 (CA)
Title: Cosmetic composition exploiting synergistic radical-scavenging effects
Inventor: FRITSCH MARIE-CLAIRE
IPC: A61K8/897
Filed: 1999-06-30
Abstract: The composition embodying the invention comprises an extract of chrysanthellum and at least one of the following compounds : a plant extract which is rich in phenolic compounds, a plant extract which is rich in carotenoids, a plant oil which is rich in tocopherols, an antioxidant of natural or synthetic origin and an enzymatic system for trapping free radicals. This composition exploits synergistic radical-scavenging between the chrysanthellum and the aforesaid compounds.
Patent CA-2278289-A1 (CA)
Title: Dressings
Inventor: ROBINSON JOSEPH WILLIAM
IPC: A61F13/00
Filed: 1998-01-21
Abstract: A wound dressing is provided comprising a backing layer, an apertured wound facing layer and an intermediate absorbent layer comprising fibres of material which upon contact with moisture will form a gel. The intermediate layer is also comprised of a non-gel forming component, e.g. another fibrous material which can support the formed gels. The backing layer is also characterised in that its water transmission rate is greater than its moisture vapour transmission rate.
Patent CA-2279570-A1 (CA)
Title: Underground storage vault
Inventor: MISIEWICZ-DELZOTTO LAURA
IPC: B65D90/24
Filed: 1999-07-30
Abstract: A double-walled, below-grade, modular, liquid containment vault that contains one or more primary storage tanks. Dispensing pumps and sundry conduits and support equipment are attached to or supported to a cover or top wall of the vault. The outer shell or base and primary tanks of the vaults can be constructed from concrete, steel, fiberglass or other composites. In concrete and steel vaults, the cover is secured to the primary tanks. The cover can also be bound to the walls of the outer shell. The pumps can be coupled to a remote control and communications kiosk. A manhole turret provides access to a ventilated secondary containment and inspection space within a base unit.  Spill and overflow containment turret assemblies surround fill and vent pipes in the cover and direct spillage to the secondary storage space. Tertiary and auxiliary containment is also provided for spillage from the dispensing pumps and backup storage for the overflow containment assemblies. Additional standpipes communicate with the secondary containment and inspection space and support additional monitoring and inspection equipment.
Patent CA-2281506-A1 (CA)
Title: Method of discriminating bacterial from aseptic meningitis
Inventor: BARNUM SCOTT R
IPC: G01N33/564
Filed: 1998-01-27
Abstract: The present invention provides a method for the differential diagnosis of bacterial meningitis in an individual in need of such diagnosis, comprising the steps of: measuring the levels of complement C3 and complement factor B in the cerebrospinal fluid of said individual; and determining whether said individual has bacterial meningitis based on the levels of complement C3 and complement factor B in the cerebrospinal fluid of said individual. Also provided is a method for the differential diagnosis of bacterial meningitis in an individual in need of such diagnosis, comprising the steps of: measuring the levels of complement factor B in a sample from said individual; and determining whether said individual has bacterial meningitis based on the levels of complement factor B in the sample from said individual.
Patent CA-2284208-A1 (CA)
Title: Over-wrap label
Inventor: MEHTA RAJENDRA
IPC: G09F3/10
Filed: 1998-03-11
Abstract: An over-wrap label (10) for a container includes a label substrate (14) having a first end (20) and a second end (22), a first major surface (16) and a second major surface (18). The first major surface (16) includes a first area of adhesive material adapted to secure the first end of the label substrate to the container, a second area of adhesive material adjacent to the second end of the label substrate, and at least one portion (26) of the first major surface remains free of adhesive. The second major surface (18) includes an area of release material (36), the label (10) being of a size such that the second end (22) of the label substrate (14) extends around the container and overlaps the first end (20). The second end (22) is releasably securable to the second major surface of the label substrate by contacting the second area of adhesive material with the area of release material.
Patent CA-2285428-A1 (CA)
Title: Surgical retractor stay apparatus
Inventor: FOWLER JAMES M JR
IPC: A61B17/02
Filed: 1998-03-31
Abstract: An improved surgical retractor stay (10) has an integrally formed handle body (12) and elongated elastic member (13) with a tail that can engage a slot of a retractor. The improved construction preferably includes an injection molded one-piece handle and elongated member so that void spaces are eliminated. A wire hook member (11) includes multiple folded sections that are encapsulated by the handle (e.g., during injection molding of the handle about the hook member). An exposed portion of the hook member extends beyond the distal tip of the handle body and provides a sharp end portion (23) that is used to engage selected body tissue.
Patent CA-2290039-A1 (CA)
Inventor: QIAN SU
IPC: C12N15/85
Filed: 1998-05-13
Abstract: La présente invention concerne un embryon animal transgénique exempt de préséniline 1 native et un animal transgénique ne possédant qu'une préséniline 1 non native. Les animaux et les cellules transgéniques qui en résultent peuvent être utilisés pour l'étude des schémas d'expression, de l'activité et des modulateurs de la préséniline 1, pour l'étude du rôle joué par la préséniline 1 dans la maladie d'Alzheimer et pour l'étude des troubles du système nerveux central.
Patent CA-2293662-A1 (CA)
Title: Valve pin actuator
Inventor: LEE CHRISTOPHER W
IPC: B29C45/28
Filed: 1998-05-27
Abstract: A valve pin actuator is disclosed that includes a cyclinder (54) mounted to the clamping plate (36), a piston (56) slidably mounted in the cylinder (54), and a valve pin assembly carried by the piston (56). A hydraulic or pneumatic circuit is provided for controlling the movement of the piston (56), and in turn translation of the valve pin (28) between the seated and unseated positions. The valve pin assembly includes a first part (60, 62, 68) removably secured to the piston (56) so as to translate therewith, and a second part (64) for receiving the valve pin (28) and secured to the manifold (16). The actuator assembly enables removal of the clamping plate (36) without removal of the valve pin assembly, and also adjusting of the valve pin (28) without removal of the clamping plate (36). The assembly further provides a clearance (103) between the piston (56) and valve pin assembly, to accommodate expansion and movement of the manifold (16) that would otherwise cause a side load to be exerted on the valve pin (28).
Patent CA-2293903-A1 (CA)
Title: Method and apparatus for determining real time liquid and gas phase flow rates
Inventor: RIVAS OSWALDO
IPC: G01F1/74
Filed: 2000-01-04
Abstract: A method for determining real time liquid phase flow rate from a biphase stream includes the steps of: providing a stream of a biphase fluid including a gas phase having a known gas density and a liquid phase having a known liquid density; providing a separator having a known volume gradient corresponding to liquid level in the separator; feeding said stream to the separator so as to provide a separated liquid phase containing a portion of the gas phase as entrapped gas and a separated free gas phase in the separator; measuring density of the separated liquid phase; measuring change in level over time of the separated liquid phase in the separator; and determining a liquid phase flow rate from the change in level over time, the separated a liquid phase density, the known gas density and the known liquid density.
Patent CA-2295863-A1 (CA)
Title: Procede de levee d'ambiguite sur les mesures en distance effectuee par un radar
Inventor: ARTIS JEAN-PAUL
IPC: G01S13/38
Filed: 1998-07-03
Abstract: L'invention concerne un procédé de levée d'ambiguïté sur les mesures en distance effectuée par un radar. Le radar émettant un signal commuté entre une première fréquence (F1) et une deuxième fréquence (F2) et recevant les signaux renvoyés par une cible sur deux voies de réception associées chacune à une fréquence (F1, F2), les mesures étant réalisées à partir de la différence de phase entre les signaux présents sur chacune des voies, chaque voie (41, 42) recevant un signal dont la fréquence est comprise entre la première et la deuxième fréquence, à la fréquence Doppler près de la cible. Elle s'applique notamment à des radars à onde continue dont la fréquence du signal émis est alternativement commutée entre au moins deux fréquences.