baber/WOPTO huggingface dataset:
Patent CA-2202310-A1 (CA)
Title: Borehole invariant neutron porosity measurement system
Inventor: EVANS MICHAEL L
IPC: G01V5/08
Filed: 1997-04-10
Abstract: This invention is directed toward the determination of porosities of earth formations penetrated by a borehole, and more specifically is directed toward the determination of porosities of earth formations while the borehole is being drilled. Borehole invariant neutron porosity measurements are obtained using a borehole tool which provides the response of two detectors spaced axially at different spacings from a neutron source. No independent measure of borehole geometry is required to correct the resulting porosity measurements for variations in borehole size or variations of the position of the borehole tool within the borehole.
Patent CA-2203625-A1 (CA)
Inventor: CARR IAN T
IPC: E21C27/24
Filed: 1995-10-18
Abstract: A continuous highwall mining machine (10) includes a frame (12) and a ground engaging loading shovel (32) that is mounted to extend forwardly from the frame. A cutter (16) for winning aggregate material is mounted to the frame (12) so as to extend above and forwardly of the loading shovel (32). An armless conveyor system (40) conveys aggregate material won from the mineral seam. The armless conveyor system includes twin chains having a forked section (44) at the forwardmost end carried on the loading shovel (32) and an uninterrupted humpless and dipless path extending rearwardly to a discharge end.
Patent CA-2204297-A1 (CA)
Inventor: TOOGOOD ROGER
IPC: E21B33/06
Filed: 1997-05-02
Abstract: There is provided an improved blowout preventer valve having two rotatable segments mounted within a casing. Each segment is provided with an integral peripheral seal and has its concave face facing upstream of the liquid flow.
Patent CA-2207176-A1 (CA)
Title: Oxy-cutting torch
Inventor: PRIORETTI GUY
IPC: F23D14/54
Filed: 1995-11-29
Abstract: Oxy-cutting torch comprising at least one end forming an oxy-cutting means, said end including a cutting opening (6), heating apertures (8) and associated feeding channels. According to the invention, the cutting opening (6) and associated feeding channel are delimited by a cutting member (16) while said heating apertures (8) and associated feeding channels are delimited by a heating element (18), said cutting member (16) being discrete and separable therefrom. The cutting member and heating element (16), which define said oxy-cutting end (4), are further attached by a separable connection.
Patent CA-2209455-A1 (CA)
Inventor: YU JUN
IPC: G02F1/225
Filed: 1997-07-02
Abstract: A Mach Zehnder (MZ) modulator with improved coupling of input and output fibers is provided. The MZ modulator combines the advantages of weakly guided input sections with strongly guided sections to optimize the coupling efficiency and selectivity of the device.      Improved coupling between weakly and strongly guided sections of waveguide is provided by an intermediate tapered waveguide section which provides gradually changing mode confinement, which reduces the mode mismatch loss and therefore suppresses the relection at the junction between the weakly and strongly guided sections of the waveguide.
Patent CA-2209500-A1 (CA)
Inventor: TANAKA TAKASHI
IPC: E01F9/685
Filed: 1997-07-03
Abstract: A foldable guide sign assembled substantially into the shape of a triangular pyramid in use, wherein two planes (S1, S2), among three planes (S1, S2, S3) in adjacent with the apex (P) of the substantially triangular pyramid are formed each with an integral plate (2, 3) respectively, the integral plates (2, 3) being connected inwardly collapsably, and the remaining one plane (S3) has bisected plates (5R, 5L) split substantially in a right-to-left symmetrical shape connected collapsably with each other, each of the bisected plates (5R, 5L) is connected inwardly collapsably to each of the adjacent integral plates (2, 3) respectively. When each of the bisected plates (5R, 5L) is enforced to the inside of the triangular pyramid, the integral plates (2, 3) connected on both ends thereof overlap with each other and collapsed into the size of one integral plate (2, 3). Upon use, since the guide sign is assembled into the sterical shape of the substantially triangular pyramid, it is extremely stable and less turned down even if a window is blown strongly from any direction.
Patent CA-2212256-A1 (CA)
Title: Indanylidene compounds, a process for their preparation and their use as uv absorbers
Inventor: LANGNER ROLAND
IPC: C07C309/59
Filed: 1997-08-01
Abstract: Compounds of the formula I according to Claim 1 are excellently suitable as UV absorbers for use in cosmetic products, in particular sunscreen compositions, daytime care products and hair care products. They are furthermore suitable for protection of products.
Patent CA-2213375-A1 (CA)
Inventor: BERTOCCI GUIDO
IPC: H04M1/72505
Filed: 1997-08-20
Abstract: A cordless telephone provides both basic and enhanced features that are accessible through the combination of a portable unit and an auxiliary recharge cradle, some of these features being heretofore available only at a base unit which combines a cordless telephone fixed station and a telephone answering device. The cordless telephone includes a call screening feature which allows a user at the portable unit to monitor incoming messages received over telephone lines as they are being recorded at the telephone answering device. A loudspeaker is incorporated into the recharge cradle and, while the portable unit is in this recharge cradle, a user may configure the portable unit and cradle in a manner to monitor the incoming messages through the loudspeaker. An incoming message is received by the portable unit through a radio frequency link commonly shared by this unit and the base unit and then advantageously coupled from the portable unit via optical devices to amplifying circuitry in the recharge cradle for driving the loudspeaker. The amplifying circuitry is turned on upon receipt of the ringing signal by the portable unit. Once receipt of the incoming message is completed, the amplifier circuitry is turned off. The cordless telephone also includes a caller-ID feature which permits the user of the portable unit to selectably identify certain incoming messages for generation by the loudspeaker. In this aspect of the invention, the user of the portable unit is advantageously provided with incoming messages only from pre-identified calling parties and can listen to a message from one of these parties before the call is answered. This operation is achieved by the user entering into a memory table in the telephone each one of a plurality of desired telephone numbers for subsequent comparison with a caller-ID number received from a calling party. In response to a favorable comparison between the caller-ID signal and any one of the stored telephone numbers, the incoming message being received over the telephoneline is automatically generated in the loudspeaker in the recharge cradle.
Patent CA-2213988-A1 (CA)
Inventor: VAZ GUY ANDREW
IPC: A43B13/12
Filed: 1996-02-28
Abstract: A blast and fragment resistant polyester or polyether-based polyurethane boot sole (13) is described, comprising embedded protective material composed of at least one woven polyaramid (Kevlar) layer (18). One or more layers of graphite fibres, ceramic fibres, S-glass fibres or mineral fibres may be also interwoven with or placed between the polyaramid layers.
Patent CA-2216971-A1 (CA)
Title: Preparation of a stable dispersion of melamine in polyol components
Inventor: HENDREICH REGINA
IPC: C08L75/08
Filed: 1997-10-14
Abstract: A stable dispersion of melamine in polyol components comprising at least one relatively high molecular weight compound containing at least two reactive hydrogen atoms and, if desired, low molecular weight chain extenders and/or crosslinkers, blowing agents, catalysts, flame retardants and also further auxiliaries and/or additives is prepared by using the melamine in combination with at least one amine and at least one organic and/or modified organic isocyanate. Such a dispersion can be used for producing flame-resistant polyurethane foams.
Patent CA-2217686-A1 (CA)
Inventor: WONG THOMAS T Y
IPC: H04M3/38
Filed: 1996-04-05
Abstract: A communications system that uses electromagnetic waves. The communications system preferably operates in the millimeter-wave frequencies, and provides relatively high signal restoration and isolation. The communications system can use polarization diversity to increase the capacity of a channel.  Isolation and restoration features in the transceivers eliminate or reduce the effects of precipitation and/or reflection and diffraction from objects, and thus is well-suited for an urban environment.
Patent CA-2219879-A1 (CA)
Title: Configuration-independent methods and apparatus for software communication in a cellular network
Inventor: WHITE TIMOTHY R
IPC: H04W92/04
Filed: 1996-05-03
Abstract: A configuration-independent software architecture for implementing a cellular communication network that facilitates communication among a plurality of cellular handsets. The architecture includes a first software functional block for implementing a first set of functions and a second software functional block for implementing a second set of functions. The architecture further includes a configuration-independent linkage block, which has an interface that appears consistent to both the first software functional block and the second software functional block irrespective of a relative position between the second software functional block, the first software functional block, and the configuration-independent linkage block in the cellular communication network. The configuration-independent linkage block facilitates communication between the first software functional block and the second software functional block via the interface utilizing configuration-independent linkage block.  Advantageously, the first software functional block, the second software functional block, and the interface remain substantially unchanged when the first software functional block changes its location in the cellular communication network relative to the second software functional block.
Patent CA-2221093-A1 (CA)
Title: Process and plant for melting and purification of aluminium, copper, brass, lead and bronze alloys
Inventor: GASPERETTI BRUNO
IPC: C22B9/22
Filed: 1997-11-14
Abstract: The present invention relates to the apparatuses and methods in the field of melting and purification of aluminium, copper, brass, lead and bronze alloys. The plant is preferably compound by two magnetic induction apparatuses, one for melting of raw material and the second for purification of molten metal. Each apparatus is compound by a pot or crucible (1, 1'), an electromagnetic apparatus, a filter (11) and a power supply. Each crucible (1, 1') is surrounded in the lower part by a hollow permanent magnet (3, 3') where inside couples of electromagnets arranged in opposition are present. The process consists of the following stages: - charging of metallic raw material inside a crucible (1); - electromagnetic induction heating and melting of the metallic raw material (2) inside crucible (1) inside a three-phase magnetic system by a horizontal travelling or pulsed magnetic field and creation of a turbulent flux inside the melt (2'); - whirling stirring of melt (2') by electromagnetic induction and purification of it with extraction of hydrogen and of non-electroconductive inclusions by coagulation ofthem in agglomerates; - discharging of purified melt (2') by a magneto hydrodynamic pump for next treatments or technological actions such as the continuous or periodical casting  through a filter for the mechanical filtration of the agglomerates.
Patent CA-2222169-A1 (CA)
Title: Novel synthons for stereoselective oligonucleotide synthesis
Inventor: DEVLIN THERESA
IPC: C07H19/20
Filed: 1996-05-23
Abstract: The invention provides new reagents and processes for synthesizing oligonucleotides, including stereoselective oligonucleotide synthesis. In a first aspect, the invention provides novel monomer synthons for the synthesis of oligonucleotides. Monomer synthons according to this aspect of the invention are useful in the synthesis of oligonucleotides and can be used in place of the well known beta-cyanoethyl phosphoramidite monomer synthon in the phosphoramidite synthesis procedure. Certain monomer synthons according to this aspect of the invention are useful in this procedure for producing oligonucleotides having defined stereochemistry. In a second aspect, the invention provides processes for synthesizing monomer synthons according to the invention, including diastereomerically enriched or purified monomer synthons. In the processes according to this aspect of the invention, the chemical reactions are stereoretentive so that the products of each reaction retain the same stereoconfiguration as their precursor reagent. In a third aspect, the invention provides processes for synthesizing oligonucleotides using the well known phosphoramidite approach. In the processes according to this aspect of the invention, any of the monomer synthons according to the invention is used in place of the conventional beta-cyanoethyl phosphoramidite.
Patent CA-2222652-A1 (CA)
Inventor: KHAN AMIN MOHAMMED
IPC: A61K31/415
Filed: 1996-06-06
Abstract: La présente invention concerne des dérivés d'imidazole à substitution 1H-4(5) représentés par la formule générale (I). Dans cette formule, A représente (a), (b) ou (c), où R¿1? est alkyle inférieur ou alcoxy inférieur; R¿2?, R¿3?, R¿4?, R¿5?, R¿7? et R¿8? sont chacun indépendamment hydrogène ou alkyle inférieur; R¿6? est hydrogène, alkyle inférieur ou alcoxy inférieur, et R¿5? et R¿6? peuvent être reliés de façon à former un cycle à 4, 5 ou 6 chaînons. Les composés représentés par la formule (I) présentent une activité agoniste par rapport au récepteur H¿3? de l'histamine. L'invention concerne également des sels acceptables sur le plan pharmaceutique et des stéréoisomères individuels des composés représentés par la formule (I), ainsi que certains de leurs mélanges. L'invention concerne par ailleurs des compositions pharmaceutiques comprenant un excipient acceptable sur le plan pharmaceutique, en combinaison avec une quantité suffisante d'un des composés représentés par la formule (I). De plus, l'invention concerne un procédé de traitement des états dans lesquels l'activation des récepteurs H3 de l'histamine peut présenter une importance thérapeutique. Ces affections peuvent être des allergies, des inflammations, des affections cardio-vasculaires ou cérébro-vasculaires (telles que l'hypertension ou l'hypotension, l'ischémie, l'ictus, la migraine), des troubles gastro-intestinaux (tels que la sécrétion acide, les troubles de la motilité) et des troubles du système nerveux central, y compris des troubles de nature psychiatrique (tels que notamment, l'anxiété, les troubles maniaco-dépressifs, la schizophrénie, la psychonévrose obsessionnelle).
Patent CA-2223051-A1 (CA)
Title: Retail system
Inventor: POWELL KEN R
IPC: G06Q30/02
Filed: 1996-06-03
Abstract: A system for creating, dispensing, and redeeming electronic discount coupons in a store (1000). The system includes a "smart card" (245, 255, 275, 285) product stations (175, 185, 195) adjacent to selected products (172, 182, 192) in the store, and a checkout station (715) in the checkout area. To create an electronic coupon, the customer inserts the card into the product station adjacent to a product the customer wishes to purchase, and the product station then writes an electronic coupon onto the card. The customer thus shops throughout the store collecting electronic coupons for products of interest. Upon completion of shopping, the customer redeems the electronic coupons at the checkout area, by inserting the card into the checkout station. During checkout, when UPC data matches data stored on the card, the customer is credited with the value of the corresponding coupon. Periodically, the electronic coupon data is transferred to a remote cleaning house.
Patent CA-2223215-A1 (CA)
Title: Apparatus for processing folded printed products
Inventor: NEWSOME JOHN ROBERT
IPC: B65H29/62
Filed: 1997-12-01
Abstract: A gate for rejecting from a gathering conveyor folded printed products which are found to be defective.  The gate includes several mating pairs of ejector rolls positioned to form a nip above the gathering conveyor, and an air ejection system for lifting a defective product into the nip so that the ejector rolls engage the lifted product and convey it to a reject receptacle.
Patent CA-2223441-A1 (CA)
Title: Virtual medical instrument for performing medical diagnostic testing on patients
Inventor: SWENSON MICHAEL R
IPC: G06F19/00
Filed: 1996-06-04
Abstract: This invention is a virtual medical instrument (VMI) system which comprises data storage (12) for storing input diagnostic test protocols for two or more of EEG, EKG, EMG/NCV, PFT, CMG, EP, ENG, visual acuity, visual field, limb dynometric and audiogram testing (52a-52h). The VMI system includes a universal interface (36) having a number of electrical contacts (44) and sets of electrical conduits associated with the different stored diagnostic test protocols. A selector (16) enables a system user to select any one of the stored diagnostic test protocols for conducting on a patient. Further included is an electrical signal generator (34) connected to the universal interface for providing electrical signals to the patient if such electric signals are required by the selected test protocol. Electrical signals are received by the system through the electrical conduits connected to the universal interface from a patient and an output (28) corresponding to the received electrical signals is provided.
Patent CA-2223912-A1 (CA)
Title: Methods of combatting infectious diseases using dicationic bis-benzimidazoles
Inventor: TIDWELL RICHARD R
IPC: A61K31/445
Filed: 1996-06-03
Abstract: The present invention provides methods for treating Cryptococcus neoformans and Candida albicans in a subject in need of such treatment. The methods comprise administering to the subject a dicationic bis-benzimidazole in an amount effective to treat the conditions.
Patent CA-2224685-A1 (CA)
Inventor: PELTONEN KARI
IPC: D21C9/10
Filed: 1996-06-03
Abstract: The present invention relates to a method of and an apparatus for treating pulp in connection with digesting. The cellulosic material is digested to a kappa number of below 50, the digested pulp is taken at a consistency of 5 -20 % to indirect heat exchange means having heat exchange surfaces within the flow means for changing the temperature of the discharged pulp. The pulp is allowed to flow in said indirect heat exchange means at an average velocity of less than 5 m/s. Thus, the pulp is cooled at least 10 ~C in said indirect heat exchange means so that the temperature of the pulp leaving said indirect heat exchange means is 80 to 130 ~C.
Patent CA-2225727-A1 (CA)
Title: Telecommunications information dissemination system
Inventor: MCLORINAN ANDREW GEORGE
IPC: H04W4/02
Filed: 1997-04-29
Abstract: A method and system for disseminating information to subscribers of a mobile telecommunications network (30) from at least one information source (20) containing data which is updated continuously or at intervals. The system includes a message distribution centre (10) connected to at least one information source (20) and arranged to process the data to generate information messages for a particular subscriber in accordance with a customer-defined profile of the subscriber, the information messages being transmitted to the subscriber's mobile terminal (32) in the form of short message service (SMS) text messages. The information messages may be transmitted at predetermined times, or upon the occurrence of a predetermined event or may be dependent upon the subscriber's location. A particular subscriber may also request information from the information source (20) at any time, from any location or based on an event and receive the information, as well as the above-mentioned information messages, in a menu-driven format.
Patent CA-2227846-A1 (CA)
Inventor: CLAYSON STEPHEN
IPC: B25B27/04
Filed: 1998-01-23
Abstract: The hinge pin extractor of the present invention is used for the removal of a hinge pin from the barrel of a hinge on a hanging door. The hinge pin extractor comprises an elongate body, a peg extending perpendicular to one end of the elongate body, and a notch positioned on the elongate body at the end opposing the peg. To remove the hinge pin, the peg is inserted into the lower end of the hinge barrel to displace the hinge pin upwardly. The notched end may then be applied to extract a hinge pin from the upper end of the hinge barrel. The notched end may also taper in thickness to pry hinge pins from the hinge barrel,for example, to promote removal of decorative hinge pins from the lower end of a hinge barrel. The device prevents damage to a door or to the trim surrounding a door when extracting a hinge pin and permits removal of hinge pins in awkward locations.
Patent CA-2228842-A1 (CA)
Title: Reducing iron oxides in rotary hearth furnace
Inventor: INNES JOHN ALEXANDER
IPC: C22B1/216
Filed: 1996-08-07
Abstract: A process for at least partially reducing iron oxides comprises forming a bed of reactants on a hearth of a rotary hearth furnace, the reactants comprising (a) a mixture of iron ore fines and (b) micro-agglomerates of iron ore fines. The mixture is heated in the rotary hearth furnace to at least reduce the iron oxides. The "micro-agglomerates" are agglomerates that are less than 1400 microns (and preferably more than 500 microns) in diameter. The at least partially reduced product is used in the production of metallic iron. An apparatus for at least partially reducing iron oxides is also claimed. The process permits operation of the rotary hearth furnace without requiring pelletisation of iron oxides fines and coal.
Patent CA-2229101-A1 (CA)
Inventor: SCHMIDT CLAYTON
IPC: A47B88/40
Filed: 1998-02-06
Abstract: A suspension system is provided for the drawer of a cabinet wherein the drawer is supported for reciprocating movement within the cabinet by a cradle.  The cradle comprises a pair of parallel spaced generally U-shaped channel members connected to one another by cross braces secured to bottom flange portions of the channels.  The channels have pairs of closely spaced rollers defining slots for receiving hems provided on opposite sides of a drawer.  A pair of U-shaped second channel members are secured to opposite inside walls of the cabinet and are configured to telescopingly receive the first channel members thereby supporting the drawer within the cabinet.  The rear ends of the first channel members are open and not connected by an upstanding rear brace.  Thereby drawers of differing depths can be supported by the cradle without interference between the drawer and cross bracing connecting the ends of the first channel members.  By such a construction, one size cradle may be used in cabinets having a range of depths and, therefore, economies in manufacture can be achieved.
Patent CA-2229320-A1 (CA)
Title: Electrical connector assembly
Inventor: CHEN WEI CHIN
IPC: H01R12/50
Filed: 1998-02-10
Abstract: An electrical connector assembly includes an insulative housing having an interconnection end, an opposed contact receiving end and at least one contact member supported within the housing. The contact member is insertably positioned in the housing through said contact receiving end. The electrical connector assembly further includes a conductive shield which is positioned in partial circumscribing relation about the housing. The shield includes at least one cooperating interlocking engagement members located on the insulative housing and shield to positively latch the shield to the housing. The positively latched shield prevents the shield from lifting off the housing during interconnection and disconnection with the mating connector and provides greater alignment of the shield with respect to the housing. The shield is preferably a one-piece construction thus providing enhanced EMI shield protection.