baber/WOPTO huggingface dataset:
Patent CA-2247694-A1 (CA)
Inventor: KROCHMAL ANDREW CYRIL
IPC: H04R3/00
Filed: 1998-09-21
Abstract: A high output power is obtained for an audio power amplifier using an amplifier circuit topology wherein channels or stages of a multi-channel class AB monolithic integrated circuit are paralleled in order to drive a low impedance dual voice coil speaker.  The stages are paralleled by connecting their outputs through isolation resistors.  These resistors prevent the differences in output bias voltages from resulting in a short circuit from power to ground.  In addition, the resistors are sufficiently small to achieve the correct speaker damping factor, yet large enough to prevent excessive quiescent current.  The separate amplifier channels or stages are paralleled through isolation resistors which increases current drive resulting in a higher output power to the loud speaker.
Patent CA-2250101-A1 (CA)
Inventor: BEAUQUIN JEAN-LOUIS
IPC: E21B43/12
Filed: 1998-01-28
Abstract: The invention concerns a method for pumping a fluid, for instance an oil effluent derived from a source (14) adjacent to a well (10), towards an outlet (24), the well comprising a chamber (32) extending substantially over the whole length of the well, and a pipe column (18) passing through the chamber and communicating with it at one end, and, at an intermediate point on its length with the source (14).The invention is characterised in that it comprises the following steps: filling, up to a predetermined height, the lower end of the chamber and of the pipe column with a first liquid with a density higher than that of the effluent; filling the chamber, between the predetermined height and the outlet, with a second liquid with a density lower than that of the first liquid, and injecting an additional amount of the second liquid in the chamber so as to displace the first liquid and the effluent, in order to bring the effluent up towards the outlet. The invention also concerns a pumping installation.
Patent CA-2254057-A1 (CA)
Title: Compressor having capacity-controlling mechanism with abrasion-free cylinder
Inventor: ISHII MIKIHIKO
IPC: F04C28/26
Filed: 1998-11-12
Abstract: A compressor having a capacity-controlling mechanism (37b) is provided, by which the inner-peripheral surface of a blind opening provided in a piston (34b) is subjected to abrasion due to sliding and rotating motions of a coil spring (41b) in the piston. In the capacity-controlling mechanism, the coil spring is covered by a cover (50) made of abrasion resistant material and the covered coil spring is arranged in the blind opening, or a head of the coil spring is engaged to an inner surface of the blind opening.
Patent CA-2254242-A1 (CA)
Inventor: FANDELLA STEFANO
IPC: G05D16/06
Filed: 1998-11-16
Abstract: The device described for regulating the delivery pressure of a gas is arranged to keep the delivery pressure substantially constant with variations in the flow-rate of gas delivered. The device comprises a regulation unit with an adjustable, resilient actuator, means for adjusting the resilient load exerted on the actuator in order to vary the calibration of the device in dependence on the flow-rate of gas delivered, as well as indicator means associated with the means for adjusting the resilient load, for showing indices indicative of adjustment values of the adjustment means predetermined and preselected in dependence on pre-established values or ranges of values of the flow-rate delivered.
Patent CA-2256813-A1 (CA)
Title: Weep hole barrier
Inventor: DESSELLE DOUGLAS
IPC: E04B1/70
Filed: 1998-12-22
Abstract: A mesh apparatus positionable with respect to a weep hole in a masonry wall so as to bar passage by insects, rodents or other pests through said weep hole;  the apparatus including a frame having a central screen and may include a structural support member for releasably securing the apparatus to said wall.
Patent CA-2257393-A1 (CA)
Title: Compositions and methods for reducing respiratory depression
Inventor: BISHOP MICHAEL J
IPC: C07D295/155
Filed: 1997-05-28
Abstract: The present invention relates to diarylmethyl piperazine compounds and diarylmethyl piperidine compounds, and pharmaceutical compositions thereof, having utility in medical therapy especially for reducing respiratory depression associated with certain analgesics, such as mu opiates. This invention additionally relates to diarylmethyl piperazine compounds and diarylmethyl piperidine compounds having utility in assays for determining the respiratory reducing characteristics of other bioactive compounds, including other diarylmethyl piperazine compounds and other diarylmethyl piperidine compounds.
Patent CA-2257497-A1 (CA)
Inventor: FERGUSON ALEXANDER B
IPC: A01N1/02
Filed: 1996-06-14
Abstract: The present invention provides solutions and method for preserving biological material that enable organs, tissues and cells to be stored for extended periods of time with minimal loss of biological activity. The inventive solutions may be either (i) substantially isotonic with the biological material to be preserved and are substantially free of univalent oxyanions and of iodide and/or (ii) comprise a first neutral solute having a molecular weight of at least about 335 and a solubility in water of at least about 0.3 M, and a second neutral solute having a molecular weight of less than about 200 and having both hydrophilic and hydrophobic moieties. The inventive solutions preferably contain CaSO4, together with combinations of anions and cations from the protein-stabilizing ends of the Hofmeister series, such as K2SO4. The invention also encompasses pretreatment of the biological material with sodium butyrate prior to the preservation solution.
Patent CA-2257749-A1 (CA)
Title: Device for the intraocular transfer of active products by iontophoresis
Inventor: BEHAR FRANCINE
IPC: A61F9/007
Filed: 1999-01-04
Abstract: The invention relates to a device for transferring at least one active product, in particular a medicament, into the eyeball by iontophoresis, comprising a reservoir of active product, which can- be applied to a patient's eye. The reservoir has at least one active surface electrode arranged facing an eye tissue lying at the periphery of the cornea a return electrode and a current generator. The return electrode is preferably in contact with the patient's partly closed eyelids
Patent CA-2260471-A1 (CA)
Title: Holding device for the attachment of a microphone to an object
Inventor: SOEHNHOLZ GERD
IPC: H04R1/02
Filed: 1999-01-27
Abstract: A holding device for enabling essentially flexible attachment of a microphone to an object, the holding device comprising an attachment at a first end and a joining element at the second end to which a microphone is positioned, at least part of the holding device being constructed of a dimensionally stable material with high acoustic dissipation qualities.
Patent CA-2260867-A1 (CA)
Inventor: SANDHU BAL S
IPC: H03K17/22
Filed: 1997-07-24
Abstract: A power-up reset detector circuit is described which uses the threshold voltages of NMOS and PMOS transistors (M7 and M8) to detect the power-up of integrated circuits, and uses a current mirror (M2 through M6) to track power supply and process variations.
Patent CA-2264757-A1 (CA)
Title: Diagnostic method for atherosclerosis
Inventor: HEINECKE JAY W
IPC: G01N30/88
Filed: 1997-09-03
Abstract: A diagnostic method and screening test for atherosclerosis and analogous diseases involving activated phagocytes and/or inflammation is provided which comprises determining the presence of 3-chlorotyrosine in a test sample of a body fluid or tissue at a level which is elevated relative to the level in a normal patient.
Patent CA-2268382-A1 (CA)
Inventor: DEMCHYSHYN VASYL V
IPC: A23K20/00
Filed: 1999-04-21
Abstract: Recombinant strains of Bacillus subtilis for the production of riboflavin by fermentation have been described, e.g. in EP 405 370. These strains carry the riboflavin operon under the control of a strong promoter directing the production of the cognate enzymes in large amount. The gene constructs of the riboflavin operon under the control of a strong promoter can be present at one or several different locations on the B.  subtilis chromosome. The incorporation of an additional gene of the riboflavin pathway under the control of a strong promoter at a separate locus on the B. subtilis chromosome has also been shown to increase the yield of riboflavin obtained by fermentation, see EP 821 063. Thus the present specification provides a yeast strain which has been transformed by a recombinant DNA sequence comprising a DNA sequence which upon expression in a suitable host cell encodes at least one polypeptide with riboflavin biosynthetic activity and which DNA sequence is transcriptionally linked to a promotor functional in such yeast strain. The yeast strain may belong to the group of flavinogenic yeasts which overproduce riboflavin under conditions of iron starvation. The specification discloses the following groups: Schwanniomyces, preferably Schwanniomyces occidentalis, Debaryomyces, preferably Debaryomyces kloeckeri, Torulopsis, preferably Torulopsis candida, or Candida, preferably Candida guilliermondii or Candida famata.
Patent CA-2269123-A1 (CA)
Title: Methods for generating and screening novel metabolic pathways
Inventor: BRIAN PAUL
IPC: C12Q1/68
Filed: 1997-10-24
Abstract: The present invention relates to a novel drug discovery system for generating and screening molecular diversity. The system provides methods for mixing and cloning genetic materials from a plurality of species of organisms in combinatorial gene expression libraries to generate novel metabolic pathways and classes of compounds. The system also provides mobilizable combinatorial gene expression libraries that can be transferred from one species of host organism to another for expression. Also provided are specialized cloning vectors for making mobilizable gene expression libraries. The system also involves methods for pre-screening or identifying for host organisms containing a library that are capable of generating such novel pathways and compounds.
Patent CA-2273498-A1 (CA)
Inventor: BISHOP PAUL D
IPC: A23L29/281
Filed: 1997-04-23
Abstract: Enzymatically cross-linked protein gels and methods for preparing them are disclosed. The methods comprise adding a transglutaminase, such as factor XIII, to a composition of a temperature-sensitive gel-forming protein, such as gelatin or collagen, and incubating the composition and transglutaminase under gel-forming conditions.  The resulting gels have superior strength and thermal stability, and can be used within a variety of medical and industrial applications.
Patent CA-2275526-A1 (CA)
Title: Label stacker for a rotary machine/apparatus
Inventor: OLSEN STEEN
IPC: B65H29/24
Filed: 1997-12-17
Abstract: A label stacker is serving for stacking labels (6) from a rotary punching apparatus comprising a punching roll (14) with cutting edges (16) and a smooth counter-pressure roll (15) for, during operation, jointly punching labels out of a thin web (3) conveyed between the rolls while these are rotating in different directions. The label stacker comprises a belt conveyor with at least one endless belt (27) which, during operation, is driven with a lower speed than the circumferential speed of the rolls about a first rotating roll (29) at the discharge end of the rolls and a second rotating roll (30) at the stacking area. Thereby, the label stacker is given a compact structure, and it will be able to safely control the labels to the stacking area in an orderly formation which successively, during the final stacking, is pushed together to a stack of labels arranged correctly on top of each other.
Patent CA-2276537-A1 (CA)
Inventor: POLLET THIERRY
IPC: H04L27/26
Filed: 1999-06-28
Abstract: A multicarrier receiver (RX') comprises the cascade connection of a sliding Fourier transformer (SLIDING FFT) which subsequently Fourier transforms parts of an incoming cyclically extended multicarrier symbol (MS), and a per-carrier frequency domain equaliser (PC-FEQ) including for each carrier a tapped delay line (TD1, TD2, ..., TDN/2) for equalising the Fourier transformed parts of the incoming multicarrier symbol (MS). The per-carrier frequency domain equaliser (PC-FEQ) allows to optimise the system capacity individually per carrier, and in a preferred embodiment of the invention includes tapped delay lines (TD1, TD2, ..., TDN/2) with adaptive complex taps, with an adaptive length and with an individual delay that may differ for different carriers.
Patent CA-2281364-A1 (CA)
Inventor: VANHEERTUM RUDOLF
IPC: C07C29/90
Filed: 1999-09-03
Abstract: The reductive cleavage of linear and cyclic acetals, especially formals, in an aqueous medium containing a formate takes place by hydrogenation with hydrogen in the presence of a heterogeneous hydrogenation catalyst at a pH value of less than 7 at a temperature of over 200 °C. The catalyst-poisoning effect of the formate is overcome at over 200 to 300 °C, especially from over 200 to 280 °C, so that, in a suspension procedure, the weight ratio of metal having hydrogenating activity to acetal can be much lower than in the prior art, namely less than 0.1.
Patent CA-2282506-A1 (CA)
Title: Improved delivery of drugs to mucosal surfaces
Inventor: ILLUM LISBETH
IPC: A61K9/00
Filed: 1998-04-20
Abstract: Liquid pharmaceutical compositions for administration to a mucosal surface, comprising a therapeutic agent and a pectin with a low degree of esterification are described. Such compositions gel, or can be adapted to gel, at the site of application in the absence of an extraneous source of divalent metal ions.
Patent CA-2282856-A1 (CA)
Title: Air filter
Inventor: HOLLINGSWORTH ANTHONY
IPC: D04H1/4291
Filed: 1999-09-20
Abstract: An air filter is disclosed with a deep filter material (2) which includes a fleece (5) having a raw air side (7) and a clean air side (8), whereby the fleece (5) is made of adhesively and/or cohesively connected fibres (6), whereby the fibres (6) include entanglements which are produced by liquid jet treatment from the clean air side (8) prior to the adhesive and/or cohesive connecting, and whereby the fibres (6) are progressively densified by the liquid jet treatment from the raw air side (7) towards the clean air side (8) so that differently densified regions (A,B,C) are formed in which particles of different size can be separated.
Patent CA-2283481-A1 (CA)
Inventor: KOPP GERARD W J
IPC: A42B1/24
Filed: 1999-09-23
Abstract: A hat for supporting a pair of eyeglasses is shown. The eyeglasses can be, for example, sunglasses or prescription glasses, such as reading glasses. The hat includes a pair of apertures formed through the crown for accepting the temples of the eyeglasses therethrough while the lenses are supported on the brim of the hat.
Patent CA-2283740-A1 (CA)
Inventor: REFF MITCHELL E
IPC: C12N15/13
Filed: 1998-03-09
Abstract: A method for achieving site specific integration of a desired DNA at a target site in a mammalian cell via homologous recombination is described. This method provides for the reproducible selection of cell lines wherein a desired DNA is integrated at a predetermined transcriptionally active site previously marked with a marker plasmid. The method is particularly suitable for the production of mammalian cell lines which secrete mammalian proteins at high levels, in particular immunoglobulins. Vectors and vector combinations for use in the subject cloning method are also provided.
Patent CA-2285590-A1 (CA)
Inventor: DANKWORT RUDOLF
IPC: G01C19/72
Filed: 1998-05-29
Abstract: The extra bandwidth of a fiber optic sensor is suitably appropriated to determine the integrity of a sensor. The present apparatus preferably consists of a means for finding the amplitude of the noise within the chosen frequency range which preferably includes one of several types of signal processors. Once the amplitude of noise is suitably determined from the sensor's output, the computed amplitude is suitably compared to pre-established upper and lower noise bounds. If the noise amplitude falls outside these bounds, a flag or interrupt is set to notify the system processor or other monitoring device of the sensor failure.
Patent CA-2288471-A1 (CA)
Title: Lensed troffer lighting fixture
Inventor: MAYFIELD JOHN THOMAS III
IPC: F21S8/04
Filed: 1999-11-04
Abstract: An improved lensed fluorescent troffer lighting fixture intended for ceiling mounting and particularly for recessed mounting to a suspended ceiling grid within a shallow plenum, the embodiments of the fixture having dimensions, particularly depth-wise dimensions, which allow installation within the confines of reduced plenums while maintaining fixture quality and retaining desirable characteristics such as minimal lamp image. The present Tensed troffers can be manufactured at a high assembly rate due to the ability to snap together on an assembly line the various components of the fixture without the use of separate fasteners. The Tensed troffers of the invention are particularly configured for use with T8 fluorescent Tamping and low profile electronic ballast. The configurations of the several embodiments of the present Tensed troffer are chosen to fit within a shipping box shaped in a manner to allow maximum stacking efficiency and to maximize the number of fixtures which can be shipped within conventional volumes encountered in available transport vehicles. The fixtures include a door frame assembly hingeably mounted to said fixtures and carrying a prismatic lens cover while providing a light trap function.
Patent CA-2290270-A1 (CA)
Inventor: REXFORD DONALD G
IPC: C21C5/48
Filed: 1999-11-23
Abstract: A monolithic, fired ceramic gas diffuser for injecting gas into a molten metal bath, including a first portion, a second portion integrated with the first portion, and a bore passing through the first portion and communicating with the second portion for supplying gas to the second portion, wherein at least the second portion has a network of interconnected pores that provides preferential gas flow from the bore through the second portion to inject gas into the molten metal bath.
Patent CA-2291037-A1 (CA)
Title: Process for the production of 1,3-propanediol by hydrogenating 3 -hydroxypropionaldehyde
Inventor: FREUND ANDREAS
IPC: C07C31/20
Filed: 1998-06-16
Abstract: A process for the production of 1,3-propanediol by heterogeneously catalyzed hydrogenation of 3-hydroxypropionaldehyde in an aqueous solution at 30 to 180 ~C, a hydrogen pressure of 5 to 300 bar and a pH value of 2.5 to 7.0, wherein ruthenium on an oxide support is used as the catalyst.
Patent CA-2291266-A1 (CA)
Title: Device for storage disc-shaped articles
Inventor: BOKSTIJN TOM
IPC: G11B33/04
Filed: 1998-05-26
Abstract: Box-shaped device for storage of disc-shaped articles. A rectangular magazine is provided comprising adjacent storage cavities for the discs. This magazine is surrounded on all sides by a wall. At least the wall portion at the front side of the magazine is provided with an opening and is displaceable to position the opening in front of the related storage cavity. The opening is provided with sealing means whilst injector means are provided to remove the related disc.
Patent CA-2293760-A1 (CA)
Title: Additive for a detergent formulation, detergent formulation comprising such an additive and use of said formation for cleaning bottles
Inventor: BAARS EDWIN
IPC: C11D11/00
Filed: 1998-06-10
Abstract: An additive for a detergent formulation is described, comprising a sequestrant having formula (I), wherein: X = a COOH group or an alkyl chain comprising a COOH group; Y = an H atom; Z = an H atom, a C1-C30 alkyl group or a C2-C30 alkenyl group; and further comprising a nonionic surfactant and/or a hydrotrope. Preferably, said sequestrant is selected from the group of nitrilo triacetic acid (NTA), .beta.-alanine diacetic acid (.beta.-ADA)), methyl glycine diacetic acid (MGDA), serine diacetic acid (SDA) and ethyl glycine diacetic acid (EGDA). Furthermore, the use of a detergent formulation containing said additive for cleaning bottles, in particular returnable plastic bottles, such as PET (polyethylene teraphthalate) or polycarbonate bottles is described.
Patent CA-2295237-A1 (CA)
Title: Antigen delivery system comprising monoglyceride or diglyceride derivatives as adjuvant
Inventor: GIZURARSON SVEINBJOEM
IPC: A61K39/39
Filed: 1998-07-09
Abstract: Adjuvants for administration, particularly for mucosal administration, of an antigen, are described, as well as compositions comprising the described adjuvant in combination with an antigen and a physiologically acceptable vehicle. Methods of eliciting and enhancing an immune response utilizing the adjuvant compositions of the invention are also described. The adjuvant comprises mono- or diglycerides containing at least one water soluble polymer, e.g. poly oxyethylene (PEG2-30). The antigen can be bound to the adjuvant. The adjuvant may be used in the treatment of plants as well.
Patent CA-2296750-A1 (CA)
Title: Cellular vesicle called ''exosome'', preparation and use thereof in immune stimulation
Inventor: ZITVOGEL LAURENCE
IPC: A61K35/12
Filed: 1998-07-03
Abstract: The invention concerns a novel method for sensitising antigen-presenting cells, novel means for implementing the method, and novel membrane vesicles with immunogenic properties. The invention concerns particularly texosomes (vesicles derived from tumour cells ) and dexosomes (vesicles derived from dendritic cells loaded with antigens or not), and their use for vectoring and presenting antigens in vitro or in vivo and methods or compositions for treating cancers, infectious, parasitic or autoimmune diseases in particular.
Patent CA-2297713-A1 (CA)
Title: Method and apparatus for distributed synchronous clocking
Inventor: ROBERTS GORDON WALTER
IPC: H03K5/133
Filed: 2000-02-02
Abstract: A method and an apparatus are provided for synchronizing clock signals in spatially distributed nodes in large, synchronous electronic, optical, optoelectronic or wireless systems, such as systems comprising arrays of microprocessors and memories, and telecommunication systems. The nodes comprise a master node and a plurality of slave nodes. The master node generates first and second identical pulse trains and propagates them to the slave nodes via a first and second propagation channels, respectively, so that a pair of pulses, one from each pulse train, arrive at each slave node substantially simultaneously, travelling in opposite directions. Each slave node generates a clock signal event in response to the substantially simultaneous arrival of each pair of pulses. The master node maintains the rate of the two pulse trains such that there are "pn" pulses in each propagation channel at any time, where "n" is the number of nodes and "p" is an integer. Adjustable delays are provided at each slave node, disposed in each propagation channel. When the pulses in the two channels do not arrive simultaneously, the slave node adjusts the delay units so as reduce differences in the arrival times of subsequent pairs of pulses. The delay units may comprise pre-delay units upstream of the detection point and post-delay unit downstream of the detection point, any increment in a pre-delay being compensated by an equal decrement in the post-delay in the same propagation channel.