baber/WOPTO huggingface dataset:
Patent CA-2164425-A1 (CA)
Title: Fault-tolerant elective replacement indication for implantable medical device
Inventor: MARKOWITZ H TOBY
IPC: G01R31/36
Filed: 1994-05-10
Abstract: A pacemaker having a fault-tolerant elective replacement indicator (ERI) triggering scheme in which transient excursions of parameters used as criteria for triggering ERI are rejected as triggering events. Periodic assessments of certain indicia of battery depletion are made, and subjected to a long-term low-pass filtering operation in order to reduce the effects of transient excursions of the indicia which result from non-ERI conditions. Over a long period of time (e.g., a day) predetermined threshold values of the indicia of interest must be exceeded a predetermined number of times in order for the device to issue an ERI. In one disclosed embodiment of the invention, the battery's terminal voltage and internal impedance are used as indicators of the battery's depletion level. Periodically, these values are measured and converted to digital values. The digital values are subjected to a low-pass filtering operation to prevent temporary or transient excursions of the impedance and voltage curves from causing ERI to be triggered. In another disclosed embodiment of the invention, a long term fading average of periodically measured values is maintained. When the measured values are found to fulfill the ERI criteria, assessment of the parameters of interest is performed at an increased rate. While assessments are performed at the increased rate, the continuously updated fading average value must fulfill the ERI triggering criteria at least a predetermined number of times before ERI is triggered. If the fading average fails to fulfill the ERI triggering criteria the required number of times, assessment are resumed at the first, slower periodic rate.
Patent CA-2169223-A1 (CA)
Title: Quick change debarking chain
Inventor: WARDELL MYRON H JR
IPC: F16G15/04
Filed: 1996-02-09
Abstract: A rotor link attached to a debarking cylinder.  An open link is attached to the rotor link and a chain is attached to the open link.  The open link must be rotated forward in the direction of rotation of the debarking cylinder so that a flat area of the rotor link is presented adjacent the open area of the open link.  This makes it less likely that the link will be disengaged by random movement of the chain during a debarking operation.  Thus, individual chains can be removed without removal of the attachment rod and all the chains on the cylinder.  A second chain may be attached to the open link through a similar series of translational and rotational movements.
Patent CA-2169902-A1 (CA)
Title: Combined color halftoning
Inventor: CHEUNG ALLAN CHIWAN
IPC: G06K9/00
Filed: 1996-02-20
Abstract: Halftoning algorithms such as error diffusion, blue noise mask, and void and cluster mask are known to produce visually pleasing, random, homogeneously distributed patterns of dots on output devices such as color displays or printers, for example. These algorithms are extended to take advantage of the mechanisms of each that cause a homogeneous distribution of dots of one colorant to produce a substantially homogeneous distribution of dots when using multiple colorants.  The number of dots of each colorant are combined to form an output dot level number of dots that is caused to be substantially homogeneously distributed.
Patent CA-2171357-A1 (CA)
Inventor: LE COENT JEAN-LOUIS
IPC: C10N10/04
Filed: 1996-03-08
Abstract: The superalkalinized alkylaryl sulphonates of alkaline earth metal according to the invention characterized in that the aryl sulphonate radical of alkaline earth metal in which the aryl radical is other than phenyl is fixed in a molar proportion comprised between 0 and 13%, preferably between 5 and 11% and more particularly between 7 and 10% in positions 1 or 2 of the linear alkyl chain. These sulphonates have at set of advantageous properties as additives for lubricating oils. The invention also relates to the corresponding alkylaryl hydrocarbons and preparation processes for these sulphonates and hydrocarbons
Patent CA-2172679-A1 (CA)
Title: Method for modifying the backbone of polymeric resins
Inventor: PRIDDY DUANE B JR
IPC: C08G64/14
Filed: 1996-03-26
Abstract: A process is disclosed whereby a polymeric resin (containing ester and/or carbonate bonds) is readily converted into a resin having a modified molecular structure. Accordingly, a cyclic carbonate (a monomer or oligomer) is transesterified with the polymer resin in the melt, preferably upon extrusion, optionally in the presence of a catalyst. Significantly, the cyclic carbonate which may include any of a variety of functional groups may, by the inventive process, be inserted into the structure of the polymer, effecting a modification to the structure and the properties of the resin. Among the disclosed beneficial modifications thus imparted to the resin are improved thermal stability, altered rheology and optical properties.
Patent CA-2177357-A1 (CA)
Inventor: COOK PHILLIP DAN
IPC: C12Q1/68
Filed: 1994-11-23
Abstract: Macromolecules are provided that have increased nuclease resistance, increasing binding affinity to a complementary strand, and that activate  RNase H enzyme.  The macromolecules have the structure PNA-DNA-PNA where the DNA portion is composed of  subunits  of 2'-deoxy-erythro-pentofuranosyl nucleotides and the PNA portions are composed of subunits of peptide nucleic acids.  Such macromolecules are useful for diagnostics and other research purposes, for modulating protein in organisms, and for the diagnosis, detection and treatment of other conditions susceptible to therapeutics.
Patent CA-2178271-A1 (CA)
Title: Combustion Chamber
Inventor: THOMPSON STANLEY PAUL
IPC: F23M9/00
Filed: 1996-06-05
Abstract: A combustion chamber has a vertically oriented body with an inner surface defining an inner combustion area.  A burner is disposed adjacent one end of the body so that the flame of the burner when lit will extend into the combustion area.  An annular insert is disposed in the combustion area and generally surrounds the flame of the burner.  The annular insert defines a secondary gas introduction zone for introducing secondary gases into the combustion area so that the recycled gases can be oxidized by the burner flame.  The insert has an inner surface presenting at least one  opening  for  allowing  fluid  communication  between  the introduction zone and the combustion area.  The opening is disposed tangentially to  the  insert  inner  surface to direct gases  in rotational motion to define a film of gases adjacent the inner surface of the combustion chamber.  The body of the chamber can include an outer shell and an inner cylindrical liner.  The outer shell has a generally horizontal inwardly extending support shelf.          The inner liner has an outwardly extending generally horizontal ridge positioned adjacent its upper end.  The ridge rests on the shelf to support the liner in a hanging fashion so that the liner can expand and contract when subjected to temperature variations.
Patent CA-2178397-A1 (CA)
Title: X-ray bone densitometry using multiple pass scanning with image blending
Inventor: STEIN JAY A
IPC: A61B6/03
Filed: 1996-06-06
Abstract: The system of the present invention uses x-rays having a narrow fan beam to scan patients for bone density and soft tissue body composition measurement and imaging. In addition to single pass scanning of body parts such as the spine, hip and forearm, a method for multiple pass whole body scanning is provided. The system includes a movable scan table configured to support a patient and a C-arm associated with the table. The C-arm is configured to support an x-ray source in opposite to an x-ray detector at opposite sides of the patient. A scanning mechanism is provided to move the scan table and C-arm to scan the patient with overlapping adjacent x-ray fan beams in successive scan passes along the length of the patient. A scan pass combination scheme that blends areas of overlap is employed to compensate errors related to height dependency.  The blending is performed according to the height of the part of patient scanned in the overlap and the distance from the edge of the scan pass.
Patent CA-2178680-A1 (CA)
Title: In vivo treatment of mammalian tissue with a metabotropic glutamate receptor agonist
Inventor: THERIAULT ELIZABETH
IPC: A61K31/198
Filed: 1996-06-10
Abstract: A method and composition for in vivo reducing the deleterious effect of traumatic CNS tissue injury by applying to said tissue a therapeutically effective amount of a metabotropic glutamate receptor agonist, preferably, trans-1-amino-1,3-cyclopentanedicarboxylic acid. The metabotropic glutamate receptor agonist preferably activates a mGluR subtype, for example the mGluR-1 subtype.
Patent CA-2180886-A1 (CA)
Title: Polymeric composition having low compression set
Inventor: NGOC HUNG DANG
IPC: C08F20/10
Filed: 1996-07-10
Abstract: Seals for automotive body applications (such as, windows, hoods, trunks and doors) and building applications (such as, window glazing gaskets and weather strips) should be dimensional stable, provide low compression set, and offer outstanding sealing characteristics over a broad temperature range. They must be capable of sealing out noise, wind and water, while providing long-term ultraviolet light resistance. This invention discloses a polymeric composition having excellent characteristics for seals and gaskets including dimensional stability, low compression set, and outstanding sealing characteristics, said polymeric composition being comprised of (1) a rubbery polymer which is comprised of repeat units which are derived from (a) butyl acrylate, (b) at least one member selected from the group consisting of methyl methacrylate, ethyl methacrylate, methyl acrylate, and ethyl acrylate, (c) acrylonitrile, (d) styrene, (e) a half ester maleate soap, and (f) a crosslinking agent; (2) at least one thermoplastic resin; and (3) at least one epoxide group containing material. Polyvinylchloride is a representative example of a preferred thermoplastic resin and epoxy resins are representative examples of preferred epoxide group containing materials.
Patent CA-2181658-A1 (CA)
Title: Anchor torque controller for anchor installing machines
Inventor: DZIEDZIC EDWARD
IPC: E21B3/02
Filed: 1996-07-19
Abstract: A torque controller which limits the output of a hydraulic motor is provided.  The torque controller includes a by-pass circuit which allows the hydraulic fluid in the hydraulic fluid circuit to by-pass the motor. A valve manifold is placed in the by-pass and includes a main chamber having a main valve member and one (and preferably two or more) poppet valves in communication with the main chamber. The pressure at which the poppet valves and the main valve open are individually adjustable and are set for different pressures.  Inlets to the poppet valves are closed with electrically operated solenoids such that the inlet to a selected poppet valve can be opened to activate that poppet valve.
Patent CA-2182887-A1 (CA)
Title: Encryption of signals to insure viewership of commercials
Inventor: LEVIEN JACK R
IPC: H04N7/173
Filed: 1995-11-03
Abstract: A system for distributing data to attract consumers to a commercial message provides for the delivery of free data to the consumer. The commercial message includes instructions in the form of a code, which can be a word or phrase, in the video or audio portion of the commercial message (46). The broadcast data is typically scrambled, such as by encryption, and the consumer uses the broadcast code to receive and decrypt the desired digital data for storage into a home computer. In order to receive the proper code, the consumer must pay close attention to the commercial message (46). The consumer's computer is connected to receiving circuitry so that upon entry of the proper code (52), broadcast data is downloaded into the computer memory and decoded. The complimentary digital data thus delivered is typically useful information such as stock prices, weather information, sports scores, etc. The packets of desirable data are delivered transparent to the receiver, or alternatively as a visual or audible burst (56).
Patent CA-2184161-A1 (CA)
Inventor: ROMO MARK G
IPC: G01L9/04
Filed: 1995-02-22
Abstract: A micromachined device (32) receiving a pressurizable fluid has a plurality of layers (34, 36) bonded together along at least one bond interface (35), the bond interface having a terminus bordering the pressurizable fluid.  In a vicinity of at least one bond interface (35) at least one layer (34, 36) has a shape that reduces a stress magnitude near the bond terminus.  In a preferred embodiment a width of at least one layer (34) increases toward the bond interface (35), to increase the pressure at which the device call operate without fracturing. In another embodiment, both layers (34, 36) bordering the bond interface (35) have widths in the vicinity of the bond interface (35) that increase toward the bond interface (35). Alternately, the layers (34, 36) have walls shaped such that, for a reference line perpendicular to the bond interface (35) and passing through an end of the bond interface (35) bordering the cavity, the cavity protrudes between the reference line and at least one of the walls.
Patent CA-2185130-A1 (CA)
Inventor: COSTANTINI JOHN J
IPC: B07B1/55
Filed: 1995-04-18
Abstract: Système de douche (12) formé d'un tuyau collecteur (40) comprenant un orifice d'entrée (46) pour le fluide, une pluralité de buses de pulvérisation (28a, 28b, 28c, 28d, 28e, 28f) disposées sensiblement verticalement (27) qui sont consécutivement attachées au tuyau collecteur (40) et disposées suivant une configuration sensiblement arquée (A), ainsi qu'un système d'entraînement (36) qui sert à actionner d'un mouvement alternatif latéral ledit tuyau collecteur (40). Ce système est utilisé pour nettoyer les surfaces de tamis d'un appareil de tamisage.
Patent CA-2185363-A1 (CA)
Inventor: CROSS PHILIP J
IPC: B62D53/08
Filed: 1996-09-11
Abstract: A fifth wheel hitch having a fifth wheel hitch plate, a plurality of lubricious polymeric pads configurated to form a bearing surface over the hitch plate, the pads having a plurality of downwardly extending integral bosses on the underside thereof in a spaced pattern corresponding to a like spaced pattern of a plurality of vertical orifices extending through the steel hitch plate, a first set of a plurality of fastener elements embedded in these bosses, and a second set of a plurality of cooperative fastener elements in the pattern of these orifices, one of said sets of fasteners extending through the bosses and the hitch plate orifices for attachment with the other set, whereby the fasteners prevent vertical displacement of the pads and the bosses prevent lateral displacement of the pads, and nearly the entire pad thickness can be worn.
Patent CA-2186234-A1 (CA)
Title: A cuboid flat gabled packing
Inventor: WEITEDER HANS-JOSEF
IPC: B65D5/74
Filed: 1995-03-21
Abstract: The specification represents and describes a cuboid flat gable package (1) made from a multi-layer composite, with the composite having at least one carrier layer made from paper or cardboard, a coupling layer, a barrier layer and a double-sided plastic coating made from polyethylene (PE), with an opening area provided in the package gable which forms the pour opening after the severing, with a pouring element (2) provided with a reclosable closing lid (3) whose flange (4) encompassing the opening area is rigidly connected to the package surface, with the closing lid (3) simultaneously representing the opening means. A reliable connection of pouring element (2) and package gable is ensured in such a way that the opening area is provided with a weakening for support, that the pouring element (2) is arranged on the side of the package surface on which the gable seam (5) is folded and that the part of the flange (4) of the pouring element (2) facing the gable seam reaches approximately up to the gable seam and up to the folding edge of the package tab and is fixed between package surface and folded gable seam (5). Furthermore, a process to produce such a flat gable package is described.          Fig. 1 is intended for the publication.
Patent CA-2187431-A1 (CA)
Title: Methods for the synthesis of 9-cis retinoids and their novel intermediates
Inventor: BENNANI YOUSSEF L
IPC: C07C253/30
Filed: 1995-05-24
Abstract: Methods for the synthesis of 9-cis retinoids, novel intermediates and methods for the synthesis of cyclohexadienyne nitriles and 9-cis alkyl cisoid nitriles, as well as 9-cis retinoids made using such methods are provided.
Patent CA-2189835-A1 (CA)
Title: Spontaneously formed clear silicone microemulsions
Inventor: HILL RANDAL MYRON
IPC: A61K8/06
Filed: 1996-11-07
Abstract: A method of spontaneously forming a highly stable clear microemulsion by combining (i) water; (ii) a volatile cyclic methyl siloxane or volatile linear methyl siloxane; and (iii) a silicone polyether surfactant. The amounts of each component are such that the composition is in the form of a microemulsion. The volatile methyl siloxane is present in the microemulsion in the form of particles having an average diameter of less than 100 nanometers. The resultant microemulsion is useful in personal care products.
Patent CA-2192237-A1 (CA)
Inventor: MOSKOS JAMES L
IPC: G06F13/10
Filed: 1996-11-13
Abstract: This invention relates generally to a method for transmitting electronic information from a first computer to a second computer.  The information is packaged in such a way that it can be unpacked at the second computer in a plurality of formats so as to be useable by applications available to the second computer.  Optionally the packaging/unpacking can be performed to allow for individual documents to be unpacked in groups or individually based on predefined preferences.
Patent CA-2192582-A1 (CA)
Title: Device for packing chromatographic stationary phases
Inventor: LADISCH MICHAEL R
IPC: G01N30/56
Filed: 1995-06-02
Abstract: Devices (10) and methods for packing a chromatography column with a continuous stationary phase. The preferred device (10) includes a brace member (11) with an engagement surface (12). The brace member (11) defines a thru-hole (13) at a location so that a passageway defined through the column is aligned with the thru-hole (13) of the brace member (11) when a first end of the column is engaged with the engagement surface (12) of the brace member (11). A funnel member engageable with an end of the column opposite the first end. The funnel member has converging walls configured to radially compress the continuous stationary phase for entry into the passageway of the column when the continuous stationary phase is pulled through the funnel member. The device (10) includes a mechanism for applying mechanical force (45) to pull the rolled continuous stationary phase through the funnel member wherein the stationary phase is radially compressed and enters the passageway of the column.
Patent CA-2193815-A1 (CA)
Title: Pneumatic transfer method and apparatus
Inventor: UEDA KAZUYUKI
IPC: B65G53/60
Filed: 1995-07-06
Abstract: A pneumatic transfer method, wherein slit-carrying platy members are joined to an inner wall surface of a compartment so that a transfer passage and a suction air passage which are defined by these members constituting a boundary between these passages are formed in a mutually inclined or substantially straight-opposed state, an air film being formed through the slit defined by the members. A pneumatic transfer apparatus includes a substantially cylindrical apparatus body, a suction air passage opened at one end thereof in an upper wall of the apparatus body and connected at the other end thereof to a suction blower, an article transfer passage connected to and passed through a side wall of the apparatus body so that the transfer passage extends so as to cross the suction air passage, a first air current control plate projecting between the suction air passage and transfer passage and extending at right angles to the transfer passage so as to be opposed at a free end thereof to the axis of the transfer passage, and a second air current control plate projecting at a predetermined angle to the first air current control plate so as to hold the suction air passage between these two control plates and so as to be separated at a free end portion thereof from the first air current control plate and form a slit thereby.
Patent CA-2194930-A1 (CA)
Title: Process for the preparation of triazolinone herbicides
Inventor: WECKBECKER CHRISTOPH
IPC: C07D249/12
Filed: 1997-01-13
Abstract: A process for the preparation of substituted 1,2,4-triazoline-3(2H)-ones of general formula (I) (see fig. I) (I) by reacting an amide of general formula (IV) (see fig. IV) (IV) with phosgen or thiophosgen or a phosgen substitute or thiophosgen substitute to a compound of general formula V       (see fig. V) (V) and subsequent reaction of (V) with a compound of general formula (VI) or of an acid addition salt of (VI) Q-NH-NH-CO-R26              (VI) to compounds of general formula (I). Compounds of general formula (I) can be used as herbicides.
Patent CA-2199692-A1 (CA)
Title: Dispositif permettant l'emission d'un jet stimule de matiere sous pression par une buse obturable
Inventor: COLOMBAT THIERRY
IPC: B41J2/165
Filed: 1997-03-11
Abstract: L'invention concerne un dispositif permettant l'émission de matière sous forme d'un jet par l'intermédiaire d'une buse (142), la buse pouvant communiquer avec une cavité (140) du dispositif par où transite ladite matière et où elle est mise en pression pour permettre la formation du jet sous l'effet de moyens de commande, des moyens de stimulation (125) étant situés à proximité de la buse pour fractionner le jet en une succession d'éléments. Le dispositif comprend des moyens d'obturation de la buse en l'absence d'émission d'un jet de matière constitués par un organe déformable (150), placé entre les moyens de stimulation et la buse, conçu et disposé pour obturer la buse lorsque les moyens de commande n'autorisent pas l'émission d'un jet de matière et pour libérer la buse lorsque les moyens de commande autorisent l'émission d'un jet.
Patent CA-2200501-A1 (CA)
Title: Glutathione antioxidant eye drops
Inventor: HOFMANN ROBERT F
IPC: A61K33/24
Filed: 1997-03-20
Abstract: An eye drop composition and a method of using the composition to alleviate eye discomfort and for improving lens pliability.
Patent CA-2201459-A1 (CA)
Title: Retaining wall system and method of construction thereof
Inventor: HERD IAN M
IPC: E02D29/02
Filed: 1997-04-01
Abstract: A retaining wall system comprising a plurality of scrap tire bales arranged to define a retaining wall structure.   A structural material  is  positioned or applied about the scrap tire bales in order to provide a continuous retaining wall structure serving to retain water, control erosion, support buildings and associated structures, provide a barrier or fence, or other similar functions.
Patent CA-2201626-A1 (CA)
Inventor: ISHISE FUMIHIKO
IPC: E02F9/20
Filed: 1996-10-08
Abstract: The present invention relates to a control apparatus for a construction machine.  When operation commands from manually operable means (30A, 30B) and results of detection from detection means (102) are received, requested flow rate information (Qra, Qrb) to actuators (7A, 7B) set by the manually operable means (30A, 30B) and working fluid supply flow rate information from working fluid supply means are compared with each other and optimal supply flow rates to the actuators (7A, 7B) are determined based on results of the comparison by a distributor function of valve control means (31) provided in control means, and valve means is controlled with the optimal supply flow rates.