baber/WOPTO huggingface dataset:
Patent CA-2103925-A1 (CA)
Title: Deghosting apparatus using pseudorandom sequences
Inventor: DIETERICH CHARLES B
IPC: H04N5/21
Filed: 1991-06-24
Abstract: Deghosting apparatus for eliminating multipath signal components in a received transmitted television signal incorporates a training signal which is a finite duration sequence of repetitions of a 2n-1 pseudorandom sequence. The 2n-1 pseudorandom sequences (12) are mapped into 2r sample intervals at either the transmitter (13) or the receiver (28) to facilitate fast Fourier transform processing. Power spectra of the received and mapped training signal (30) and a stored version (44) of the training signal are deconvolved (36) with the deconvolution coefficients produced in logarithmic form. The logarithms (32, 34) are inverse Fourier transformed (38) to produce (40) delay coefficients related to the time of occurrence of the multipath signals, which coefficients are utilized to program variable delay circuitry in an adaptive filter (42) to cancel the multipath components.
Patent CA-2104346-A1 (CA)
Inventor: PROTO GEORGE R
IPC: B23K26/02
Filed: 1993-08-18
Abstract: Appareil d'usinage d'aiguille qui présente une aiguille de stock à un dispositif pour percer un trou dans l'aiguille. L'appareil comporte également un appareil d'alimentation en aiguilles qui fournit une alimentation à grande vitesse d'ébauches d'aiguilles pour l'appareil d'usinage d'aiguille. Méthode d'alimentation à grande vitesse d'aiguille pour le perçage laser subséquent.
Patent CA-2106349-A1 (CA)
Title: Procede d'adsorption selective de l'azote avec adsorbants a faible capacite d'absorption d'oxygene
Inventor: GAFFNEY THOMAS R
IPC: B01J20/18
Filed: 1993-09-16
Abstract: L'invention consiste en un procédé pour l'adsorption sélective de l'azote, à partir d'un mélange de gaz, qui comprend le contact du mélange avec un adsorbant d'une capacité pour l'azote modérée et d'une sélectivité pour l'azote élevée par rapport aux autres composants du mélange. Quant à la séparation d'air, les adsorbants améliorés ont une capacité pour l'O2 peu élevée, et une capacité pour la N2 à peu près égale aux adsorbants courants, tel le CaA. Fait surprenant, des simulations de processus VSA O2 ont démontré que parmi les matières comportant la même sélectivité isotherme binaire opérationnelle, celles qui montrent une capacité moins élevée de sélectivité isothermale opérationnelle pour l'azote sont supérieures en tant qu'adsorbants d'O2 VSA, à la condition qu'elles aient une capacité opérationnelle pour l'azote des environs de 0,3 nmol/g, au moins.
Patent CA-2106796-A1 (CA)
Title: Use of Formate Salts as Auxiliary Agents for Low Density Rigid Foams
Inventor: CHRISTMAN DONALD L
IPC: C08J9/00
Filed: 1993-09-23
Abstract: It has been found that in addition to acting as an auxiliary blowing agent, various salts of formic acid may be used to tailor the reactivity characteristics of rigid, polyurethane foam formulation. Salts of particular interest are: ammonium formate, sodium formate, and potassium formate. By varying amounts and combinations of the above salts, characteristics of a formulation's reactivity such as cream time, gel time, rise time, and tack-free time may be manipulated.
Patent CA-2107732-A1 (CA)
Title: Retrovirus from the hiv group and its use
Inventor: GUERTLER LUTZ G
IPC: G01N33/68
Filed: 1993-10-05
Abstract: A novel immunodeficiency virus is disclosed which has the designation MVP-5180/91 and which has been deposited with the European Collection of Animal Cell Cultures (ECACC) under No. V 920 92 318. The characteristic antigens which can be obtained from it and which can be employed for detecting antibodies against retroviruses which are associated with immuno-deficiency diseases are also disclosed, as are the DNA and amino acid sequences of the virus.
Patent CA-2108366-A1 (CA)
Title: Road and traffic control system
Inventor: CHAU HAU DAN
IPC: G08G1/00
Filed: 1992-03-11
Abstract: A traffic control system is provided for improving the flow of traffic through an intersection. The control system utilizes traffic control signals which have only two phases and a turn lane (20) which extends from a traffic lane (16) across an oncoming lane (18) and then to the intersection so that traffic can queue up in the right turn lane (20) and make a right-hand turn when a green go signal is given without interfering with the oncoming traffic.
Patent CA-2108904-A1 (CA)
Title: Press and Method for Modifying a Press for Use in the Press Section of a Papermaking Machine or the Like
Inventor: ABERG BO-CHRISTER
IPC: D21F3/02
Filed: 1992-05-22
Abstract: 2108904 9220858 PCTABS00017 The invention relates, according to a first aspect, to a press (10; 110) for the press section of a papermaking machine. The press is of the type having a rotary press roll (12; 112), a substantially stationary pressure shoe (14; 114), and a press belt (18;  118) running in an endless path around the pressure shoe between this and the press roll and having a substantially impermeable inner surface facing the pressure shoe. A separate, endless reinforcing belt (30; 130) enclosing the press belt (18; 118) is in frictional engagement over the entire length of the press belt so as to run together with the press belt in the endless path. The reinforcing belt (30; 130) may be presstressed, e.g. by shrinkage, in its running direction and, optionally, also transversally thereof.  According to a second aspect, the invention relates to a method of modifying a press (10; 110) of the type indicated above, in which method the press belt (18; 118) is enclosed by a separate, endless reinforcing belt (30; 130) of the above-indicated type.
Patent CA-2109276-A1 (CA)
Title: Mechanisms for orienting and placing articles
Inventor: HAYWARD VINCENT
IPC: B25J13/02
Filed: 1993-10-26
Abstract: ABSTRACT      A mechanism for orienting an end member utilizes paired five-bar linkages wherein four joints are actuated.  Preferably the actuators are mounted at the base-link of the five bar linkages, such base-links being colinearly aligned.  The opposed corner links of each five-bar linkage are coupled through joints to the member to be moved.
Patent CA-2114978-A1 (CA)
Title: Suspension fork for a bicycle
Inventor: SUTTER EDMUND E
IPC: B62K25/08
Filed: 1994-02-04
Abstract: ABSTRACT OF THE DISCLOSURE A suspension fork assembly for a bicycle having a frame includes at least one stanchion tube connected to the bicycle frame, at least one receiving tube connected to the bicycle frame and slidably encasing a first portion of the at least one stanchion tube, and at least one compressible system comprising a plurality of toroidal members externally disposed around a second portion of the at least one stanchion tube between the bicycle frame and the at least one receiving tube. In preferred embodiments, a polymeric bushing tube is disposed along the length of the receiving tube between the receiving tube and the first portion of the stanchion tube.
Patent CA-2115701-A1 (CA)
Title: Rotating stirring device
Inventor: WU HUA
IPC: B01J19/18
Filed: 1994-02-15
Abstract: A rotating stirring device, particularly for mixing heterogeneous systems in mechanical stirred reactors, is fit to be joined to a drive shaft coaxial with respect to the device rotation axis. The device includes a plurality of extended and substantially C-shaped stirring elements, symmetrically arranged with respect to the rotation axis and joined to each other at respective ends corresponding with the rotation axis. Such a device permits a very efficient material exchange among different phases to be obtained and to remain substantially constant with an increase in the volume of the mass being stirred. The device is also characterized by high mixing homogeneity and particularly low shear stress values.
Patent CA-2116173-A1 (CA)
Inventor: POTIER THIERRY
IPC: H03L7/23
Filed: 1994-02-22
Abstract: Abrégé Synthétiseur de fréquence Le dispositif synthétiseur de fréquence comprend en combinaison : un oscillateur (OCT1), un comparateur de phase (CP), un générateur de fréquence (GF) possédant une entrée (EM1) recevant la fréquence de référence de valeur FO et N sorties (S1 à SN), avec N nombre entier pouvant être choisi de 1 à N, chaque sortie (S1 à SN) étant propre à délivrée une fréquence ayant une valeur égale à 2N FO, une boucle à verrouillage de phase (BVP) comprenant N maillons (A1 à AN) connectés en série entre la sortie (4) de l'oscillateur (OCT1) et la première entrée (6) du comparateur (CP), chaque maillon (A1 à AN) comprenant un mélangeur (XG1 à XGN) ayant une première entrée (E1X1 à E1XN) reliée à l'une des sorties (S1 à SN) du générateur de fréquence (GF), une seconde entrée (E2X1 à E2XN) et une sortie (SX1 à SXN), la seconde entrée (E2X1 à E2XN-1) du mélangeur courant (XG1 à XGN-1) étant reliée à la sortie (SX2 à SXN) du mélangeur précédent (XG2 à XGN) et la seconde entrée (E2XN) du mélangeur (XGN) étant reliée à la sortie (4) de l'oscillateur (OCT1). (Figure 1)
Patent CA-2117759-A1 (CA)
Title: Sports conveyance
Inventor: MILNE JOHN DE COURCEY
IPC: A63C17/01
Filed: 1993-04-08
Abstract: The invention provides a sports conveyance (10) having a frame (12) mounted on a pair of spaced front wheels (20) and also supported by rear wheel means (16), the front wheels having interconnecting means (29) whereby they may be turned in unison to either side of the line of intended motion, a board (11) mounted on the frame (12) to support a rider and having or comprising tiltable platform means adapted to be depressed at a respective side of the longitudinal centre line (31, 32) of the conveyance (10), said tiltable platform means being adapted to be disposed in inoperative attitude with the front wheels (20) unturned but so connected to the said interconnecting means (29) of the front wheels that depression of said platform means (11) by body weight of the rider at a respective side of the board causes pivoting of the wheels in unison in the respective direction upon movement of the platform means (11).
Patent CA-2119832-A1 (CA)
Title: Liquid household cleaning composition with insect repellent
Inventor: STELTENKAMP ROBERT J
IPC: A01N37/10
Filed: 1994-04-05
Abstract: ABSTRACT   An aqueous liquid detergent composition is provided for cleaning a hard surface and for repelling insects therefrom comprising a detersive proportion of a surface active detergent compound, an effective amount of at least one of certain defined insect repellent materials which is sufficient to repel insect from the hard surface after application of the detergent composition thereto, the liquid detergent composition being substantially free of a liquid hydrocarbon.
Patent CA-2121776-A1 (CA)
Title: Liquid crystal device with a liquid crystal in an optical modulation region having a pretilt angle smaller than the liquid crystal in a peripheral region surrounding the optical modulation region
Inventor: KODERA YASUTO
IPC: G02F1/1333
Filed: 1994-04-20
Abstract: A liquid crystal device is constituted by a pair of oppositely disposed substrates having opposing inner surfaces and opposing electrodes thereon, and a chiral smectic liquid crystal disposed between the opposing electrodes.  The liquid crystal device has an effective optical modulation region and a peripheral region outside the effective optical modulation region.  In the device, liquid crystal molecules in the peripheral region have a pretilt angle which is larger than a pretilt angle of liquid crystal molecules in the effective optical modulation region.          As a result, a local pressure irregularity or a cell thickness change caused by a liquid crystal molecular movement along an extension of the device is effectively suppressed.
Patent CA-2122701-A1 (CA)
Title: Coated polymeric fabric having durable wettability and reduced adsorption of protein
Inventor: QUINCY ROGER B III
IPC: A61F13/511
Filed: 1994-05-02
Abstract: A method of durably rendering a polymeric fabric, e.g., a polyolefin fabric, wettable and resistant to protein adsorption. The method involves providing a polymeric fabric having a surface, applying to the surface of the polymeric fabric a composition which includes water and a surfactant adapted to durably render the polymeric fabric resistant to protein adsorption, and drying the polymeric fabric. The surfactant has a solubility in water at 20°C no greater than about 5 percent by weight, based on the weight of the water, and is present on the polymeric fabric in an amount of the surfactant sufficient to reduce the adsorption of the protein by the fabric. The coated fabric not only exhibits durable reduced adsorption of protein but also has durable wettability by aqueous liquids. The coated fabric is especially suited for incorporation in such disposable absorbent articles as diapers, feminine care products, such as sanitary napkins and tampons, incontinent care products, training pants, wipes, and the like.
Patent CA-2123061-A1 (CA)
Inventor: ANDO SHINJI
IPC: G02B6/00
Filed: 1994-05-06
Abstract: An optical waveplate includes a polyimide with a film thickness of 20 µm or less.
Patent CA-2124127-A1 (CA)
Title: Electric connector
Inventor: HOPF GUSTAV
IPC: H01R13/719
Filed: 1994-05-24
Abstract: ABSTRACT     For an electric connector, in particular between a generator and an electronic controller for inflatable restraint systems (airbags) in motor vehicles, with a connector housing for housing the contact tubes with leads, where a connector housing in the coupling position lifts a jumper, disposed in a receptacle for the generator-sided plug pins, from the plug pins, it is provided  in  order to  simplify the  assembly  and mount  the connector reliably on the generator, that the connector housing (1) exhibits an assembly opening (2), which can be closed by means of a cover member (11), that the cover member (11) can slide over the assembly opening (2) of the connector housing (1) and can be held at the connector housing (1) by means of a pin (16), arranged in front in the push-on direction, and guide elements (12, 13, 14, 15), attached to the front and rear regions of the longitudinal sides, and can be arrested at the connector housing (1) in a preclick-stop position and click-stop position by means of shoulders (21) designed on the longitudinal sides, and strip-shaped extensions (18), which reach in the click-stop position as the blocking element behind hook-shaped spring elements (19, 20), which are attached to the connector housing (1) and engage with recesses (24) of the generator (29), and prevent a return swing.
Patent CA-2126955-A1 (CA)
Title: Process of molding multi-durometer soles
Inventor: VOLPE JOHN F
IPC: B29C43/20
Filed: 1994-06-28
Abstract: ABSTRACT  A process  of molding multi-durometer  footwear soles which includes forming elongated components from compression moldable compounds, each component having a different hardness (Shore A).   The components are configured and dimensioned such that the softer component will be positioned on top of and within the configuration of the bottom, harder component.   The assembled components are placed in a compression mold and covulcanized together.
Patent CA-2128684-A1 (CA)
Title: Low phosphorous, low etch cleaner and method
Inventor: OUYANG JIANGBO
IPC: C11D1/83
Filed: 1994-07-22
Abstract: Compositions and methods for cleaning and etching an aluminum surface with a low etch, low phosphate alkaline cleaner solution are dis-closed. The preferred composition employs a stable combination of an alkali metal hydroxide, gluconic acid, a detergent source, an aluminum sequestrant, an oil emulsifier, a defoamer, and a hydrotrope.
Patent CA-2130157-A1 (CA)
Inventor: UEDA KOHI
IPC: H04L25/03
Filed: 1994-08-15
Abstract: An adaptive equalizer which has a decision feedback adaptive equalizer unit 41, a linear adaptive equalizer unit 42, comparing circuit 47 which compares integrated equalizing error value of the decision feedback adaptive equalizer 41 with integrated estimation error value of the linear adaptive equalizer unit 42, and selecting circuit 48. The selecting circuit 48 selects one of the equalizer units 41 and 42, which has the better performance-based on the result of the comparison of comparing circuit 47.
Patent CA-2134477-A1 (CA)
Title: Analysis based on flow restriction
Inventor: WILDING PETER
IPC: C12Q1/68
Filed: 1993-04-29
Abstract: Disclosed are devices and methods for the clinical analysis of a sperm sample. The devices comprise a solid substrate, typically on the order of a few millimeters thick and approximately 0.2 to 2.0 centimeters square, microfabricated to define a sample inlet port (16A) and a mesoscale flow channel (20, 40) extending from the inlet port (16A). In one embodiment, a sperm sample is applied to the inlet port (16A), and the competitive migration of the sperm sample through the mesoscale flow channel (20, 40) is detected to serve as an indicator of sperm motility. In another embodiment, the substrate of the device is microfabricated with a sperm inlet port (16A), an egg nesting chamber (16B), and an elongate mesoscale flow channel (20, 40) communicating between the egg nesting chamber (16B) and the inlet port (16A). In this embodiment, a sperm sample is applied to the inlet port, and the sperm in the sample is permitted to competitively migrate from the inlet port (16A) through the channel (20, 40) to the egg nesting chamber (16B), where in vitro fertilization occurs. The devices of the invention may be used in a wide range of applications in the analysis of a sperm sample, including the analysis of sperm morphology or motility, to assess sperm binding properties, and for in vitro fertilization.
Patent CA-2134484-A1 (CA)
Title: Replaying of Messages Between Hearing Impaired Callers Using Keyboards and Other Callers
Inventor: MILLIOS WILLIAM L
IPC: H04M3/42
Filed: 1994-10-27
Abstract: A call between a caller using a telephone device for the deaf (TDD)  and another including a TDD user is connected by   automatically prompting the TDD caller for calling   information,   parsing   the   received   calling information to determine a forward number, and routing the call to one of a number of communication assistants.  One embodiment  involves  storing  the  forward  number  before routing the call so the communications assistant can press a single button to connect the call.  Another embodiment entails connecting the call automatically routing the call to the communications assistant.
Patent CA-2141812-A1 (CA)
Title: Axial piston machine, in particular an axial piston pump or an axial piston motor
Inventor: FREY BERNHARD
IPC: F01B3/02
Filed: 1993-08-06
Abstract: An axial piston machine of the axial piston pump or motor type, having a first subassembly (1), including a plurality of circumferentially spaced cylinder-piston units (2) around a central axis (3), a second subassembly (29) rotatable in relation to the first subassembly in a force-transmitting manner with the cylinder-piston units in a coupling plane (30) at a predetermined angle to the central axis, wherein one of these subassemblies is rotatably arranged within a housing (10) and coupled with rotational drive means, with the driving subassembly including two spaced first bearings (33, 34) that act at least substantially in a radial direction and a swivel-joint type second bearing (35) having a pivot center (36) located at about the mid point of the center-to-center distance between the two first bearings, with this type of construction being applicable to swash-plate, skew-plate and skew-drum type machines.
Patent CA-2143783-A1 (CA)
Inventor: BECKER RALF-JUERGEN
IPC: C08F4/02
Filed: 1995-03-02
Abstract: Method for the prepn of immobilised alkyl aluminoxanes on inert materials from alkyl aluminium cpds and water, characterised by the reagents being added to the whirlpool bed reactor with the gas stream and then being fixed onto the carrier directly from the gas phase after the reaction. Also claimed are the immobilised alkyl aluminoxanes on inert carrier materials prepd by the method.
Patent CA-2144809-A1 (CA)
Inventor: LIN CHUNG-MOU
IPC: B60R1/08
Filed: 1995-03-16
Abstract: A new structure of automobile exterior rearview mirror which integrates an arc-surface wide-angle mirror and a plane mirror together to form a one-piece design.   This design overcomes the drawbacks of the existing exterior rearview mirror,  in which a driver use a stick-on type wide-angle mirror.  In addition, the present invention also provides a blank surface area with parabolized image coating.  The blank surface area is formed between the wide-angle mirror and the plane mirror and its function is to prevent the refraction and reflection interferences caused by the wide-angle mirror and the plane mirror.  The exterior rearview mirror of the present invention is economical, will not fall off and has no blind spot.  It is a full view safety mirror for backing up the car, making turns and changing lanes in the roadway.
Patent CA-2144961-A1 (CA)
Title: Penem derivatives, their preparation and pharmaceutical compositions containing them
Inventor: ALTAMURA MARIA
IPC: A61P31/04
Filed: 1993-09-15
Abstract: Described are penems derivatives of general formula (I) wherein R1 is chosen in the group consisting of H, C1-C6 alkyl, C1-C6 alkoxy, C3-C7 cycloalkyl, optionally protected C1-C6 hydroxyalkyle; R2 is chosen in the group consisting of carboxyl group free or esterified with a group easily activated "in vivo", carboxylate anion; R3 is chosen in the group consisting of H, C1-C4 alkyl optionally substituted; R4 is chosen in the group consisting of: H, C1-C6 alkyl optionally substituted, C1-C6 hy-droxyalkyl optionally substituted, C1-C6 mercaptoalkyl optionally substituted, C1-C6 aminoalkyl optionally substituted, C1-C6 alkyl substituted by a quaternary ammonium group, C1-C6 carboxyalkyl optionally substituted, cycloalkyl, aryl, ary-lalkyl, heterocyclyl-alkyl optionally substituted, saturated or unsaturated heterocycle wherein the heteroatoms in the hetero-cyclic ring can be N, O, S, or R3 and R4 linked together form a heterocyclic ring having 3-7 atoms, optionally substituted, saturated or unsaturated which can contain other heteroatoms as O, N, S. R5 and R6 independently from one another are chosen in the group consisting of: H, C1-C6 alkyl, C1-C6 hydroxyalkyl, C1-C6 mercaptoalkyl, C1-C6 aminoalkyl, alkenyl, cycloalkyl, aryl, arylalkyl, alkylaryl, heterocyclyl-alkyl, C1-C6 alkyl carboxyamide wherein the alkyl group can be linear or branched (all these groups optionally substituted), or R5 and R6 taken together form an heterocyclic ring having 3-7 atoms optionally substituted, n is chosen in the group consisting of: 1, 2, 3; and their pharmaceutically acceptable salts.
Patent CA-2149316-A1 (CA)
Inventor: AHLUWALIA GURPREET S
IPC: A61K8/00
Filed: 1993-11-10
Abstract: Mammalian hair growth is reduced by applying to the skin a composition including pantothenic acid or an analogue of pantothenic acid.
Patent CA-2149418-A1 (CA)
Title: High flux hollow fiber membrane
Inventor: FERNANDEZ BEN
IPC: A61M1/16
Filed: 1993-11-10
Abstract: Semipermeable membranes are disclosed for purifying aqueous biological fluids.  The membranes are particularly suitable for purifying extracorporeal blood via hemodialysis. The membranes, preferably configured as hollow fibers, are made from a hy-drophilic polymeric material, preferably cellulose acetate. Features of the membranes include an ultrafiltration coefficient (K uF) of about 15 to about 55 mL/hr/mmHg/m2 (thus termed "high-flux" type membranes), a urea mass transfer coefficient (K oV (urea)) of at least 38 x 10 -3 cm/min, and a ratio of K oV(urea)/K uF of at least 2.5 x 10 -3. Hollow fibers of such membranes suitable for hemodialysis have a lumen diameter of about 175 to about 210 µm and a wall thickness of about 10 to about 35 µm. According to disclosed methods for making the membranes, a melt comprising about 32 to about 40 % w/w cellulose acetate, about 5 to about 10 % w/w glycerine, and about 50 to about 65 % w/w polyethylene glycol is extruded to make hollow fibers; the fibers are cooled, cold-stretched, water-leached, and replasticized using a glycerine solution.