baber/WOPTO huggingface dataset:
Patent CA-2221817-A1 (CA)
Title: Thermally stable antistatic agents
Inventor: MONTE SALVATORE J
IPC: C08K5/41
Filed: 1996-04-30
Abstract: A process for rendering polymer compositions antistatic and the products of such process are described. The polymeric material is treated with a combination of selected trineoalkoxy amino zirconates and trineoalkoxy sulfonyl zirconates. These latter materials are soluble in the polyolefins, polyesters, polyamides, polyethers, polycarbonates, and polystyrenes and remain stable during the processing of these polymers. Furthermore, the antistatic agents of the invention are thermally stable to temperatures up to 825 °F, do not "bloom" during the polymer processing, and are colorless, permanent, non-blooming and non-moisture dependent.
Patent CA-2223992-A1 (CA)
Title: Orthopedic incline appliance and method
Inventor: KUSSICK LEON
IPC: A61C7/08
Filed: 1996-06-07
Abstract: The invention provides a prefabricated appliance (10) for correcting many types of malocclusions typically with no more than limited use of wires or bands. The appliance (10) is designed to be fitted stably and tightly to the upper front teeth or back teeth when needed. The appliance (10) comprises a teeth engaging box (20) adapted to engage the upper front teeth; a stabilizing segment (39) attached to the teeth engaging box and adapted to permit a stable and comfortable fitting of the appliance (10) in a patient's mouth; and a pair of spaced inclined remodeling segments (36a, 36b) extending from in front of the teeth engaging box downward and rearward at a predetermined angle designed so that the inclined remodeling segments (36a, 36b) contact the lingual contacting surface of selected lower front teeth and urge the lower jaw forward and upward to the desired degree.
Patent CA-2225751-A1 (CA)
Inventor: WHITNEY DAVID
IPC: H01L27/15
Filed: 1996-04-10
Abstract: L'invention se rapporte à un procédé de fabrication d'une structure monolithique pour photocoupleur, dans le but d'améliorer la linéarité. Le procédé consiste à placer une photodiode pour signaux de sortie (141, 142) et une photodiode pour signaux de commande de réaction (151, 152) sur une puce unique équipée d'une diode luminescente (190). On détermine la configuration et la position des photodiodes (141, 142, 151, 152) par rapport à la diode luminescente (190) de manière à compenser d'éventuels manques d'uniformité dans la lumière reçue venant de la diode luminescente (190).
Patent CA-2226000-A1 (CA)
Title: A method and a package for extending the shelf life of a food
Inventor: BECKEMAN CLAES-GOERAN
IPC: A23L3/02
Filed: 1996-07-01
Abstract: The disclosure relates to a method and an apparatus for heat-treating a food which is packed in a container (1, 14) of flexible or foldably formable packaging material for the purposes of extending the shelf life of the food. In order to accelerate the heat treatment, the container (1, 14) is disposed such that it is, during the heat treatment proper, caused to adopt a first position in which the distance between opposing side wall panels (7) and, thereby, the layer thickness of the packed food, is reduced to a minimum, taking into account the volume of the food and the surface of the packaging material, as well as the shape of the container proper.       After completed heat treatment, the container is brought to a second position in which the shape of the container corresponds to that shape in which the container (14), with its packed, heat treated food, is to be distributed, sold or used.
Patent CA-2228522-A1 (CA)
Inventor: VILLENEUVE ANNE
IPC: A61K39/00
Filed: 1996-08-08
Abstract: A recombinant hybrid protein is disclosed which expresses at least one chlamydial B-cell neutralizing antibody stimulating epitope and one chlamydial T-helper cell epitope, and is capable of inducing antibodies immunoreactive with Chlamydia trachomatis in vertebrate. Also disclosed is a nucleic acid molecule comprising at least a portion encoding the recombinant hybrid protein and an antibody immunoreactive with C. trachomatis producible by immunizing a host with an immunogenic component comprising the recombinant hybrid protein or the nucleic acid molecule and a carrier. The present invention relates to recombinant hybrid proteins, containing both B and T-helper cell epitopes which can be used in vaccines to provide a protective response to C.  trachomatis serovars.
Patent CA-2235098-A1 (CA)
Title: Polymere charge par des particules solides
Inventor: THIERRY-MIEG JEROME
IPC: C08L101/00
Filed: 1998-05-06
Abstract: L'invention concerne un procédé de préparation d'une composition à extruder comprenant un polymère et une charge de particules solides, comprenant une étape de mélange de la charge de particules solides avec des particules ou granulés dudit polymère, le cas échéant sous forme de suspension aqueuse. L'invention est particulièrement simple et mène, au niveau du matériau final, à de meilleures propriétés mécaniques que celles obtenues par incorporation directe de la charge solide dans le polymère ou copolymère. Cette amélioration est très sensible en particulier sur le plan de la résistance aux chocs du matériau final. L'invention concerne également une composition à base de polypropylène comprenant une charge de particules solides comme le kaolin, présentant un haut module de flexion et une bonne résistance aux chocs.
Patent CA-2235176-A1 (CA)
Title: Method and apparatus for improved inspection and classification of attributes of a workpiece
Inventor: JOHNSON EMERIC
IPC: G01N23/18
Filed: 1998-04-17
Abstract: An apparatus for detecting the probable existence, location, and type of defects in a workpiece is described. The apparatus includes a sensor subsystem, an optimizer, a control subsystem, and a computer system having a processor and computer readable memory. Sensor subsystem senses a first section of the workpiece and produces signals corresponding to a physical characteristic of the workpiece. The computer system is configured to generate a workpiece model based on the signals produced by the sensor subsystem. In an alternate embodiment, a defect assembler can be provided to merge signals from a plurality of sensor subsystems. The defect assembler can also be configured to generate the workpiece data model. The optimizer is configured to generate workpiece segmentation recommendations based on the workpiece data model. The processor is configured with a first producer thread program which, in response to the receipt of a first set of signals by the computer system, receives a data subscription request from a subsystem which uses data and transmits the signals from the computer readable memory to the generator of the data subscription request. The processor is further configured to generate a second producer thread in response to storage of a second set of signals in the computer readable memory. The second producer thread is configured to receive one of the data subscription requests and selectively send the second set of signals to the generator of the data subscription request. A tracking device for tracking selective kinematics of a workpiece moving through a plant is also disclosed. The tracking device includes an encoder wheel configured to tangentially contact a workpiece and rotate at an angular velocity coincident with the linear velocity of the workpiece. The tracking apparatus further includes a drive mechanism for driving the encoder wheel at a first angular velocity approaching the angular velocity of the encoder wheel which is coincident with the linear velocity of the workpiece. The tracking device also includes a signal generator configured to interact with the encoder wheel and generate a signal in response to the angular velocity of the encoder wheel. The tracking apparatus can be incorporated into the apparatus for detecting defects within a workpiece by providing the signal from the signal generator to the control subsystem.
Patent CA-2235568-A1 (CA)
Title: Method and apparatus in a radio messaging system for forming a current frame of data while maintaining a correct transmission order for numbered messages
Inventor: PHILLIPS W GARLAND
IPC: H04W88/18
Filed: 1998-04-22
Abstract: A processor (208) selects a candidate message (214) from a message queue (212), and tests (306) whether an available space (216) in the current frame of data is sufficient to accommodate the candidate message. The processor records (320, 420) a skip indicator (218, 220) into a predetermined memory location, in response to the candidate message being a numbered message and the available space in the current frame being insufficient. The processor skips (316) the candidate message during the current frame even though available space is sufficient, when the skip indicator is recorded in the predetermined memory location and is applicable to the candidate message. The processor adds (332) the candidate message to the current frame of data, when the available space in the current frame is sufficient and the candidate message is a message not affected by the skip indicator. The processor continues (330) to select, test, record, skip, and add, as above, to form the current frame of data.
Patent CA-2241113-A1 (CA)
Title: Winch
Inventor: MORFITT JEFFREY
IPC: B66D1/22
Filed: 1996-12-20
Abstract: There is provided a new and useful winch (10) comprising a cable drum (12); a motor (20) operatively connected to drive a cable drum (12); a fall arrestor (90) operatively connected to a cable drum (12) and having no power input requirement and a gear reduction group (32) through which a motor (20) and fall arrestor (90) are operatively connected to a cable drum (12).
Patent CA-2241235-A1 (CA)
Inventor: KETTLE PAUL J JR
IPC: B60T17/22
Filed: 1998-06-22
Abstract: An improved method is used to control the pressure in the IAR pipe of a train. The train is typically equipped with an independent brake handle, a control reservoir, an IAR control portion and a computer for controlling the IAR control portion generally according to position of the brake handle. The method involves the steps of: moving the brake handle to a point along its range of motion; and storing in the computer as a setpoint the value desired for the pressure within the IAR pipe. At whichever point the brake handle occupies along its range of motion, there is a particular pressure setpoint corresponding thereto. The method next includes the steps of: directing the computer to modify the actual pressure in the control reservoir to the setpoint thereby also causing the actual IAR pipe pressure to approach the setpoint. As the actual IAR pipe pressure approaches the setpoint, the computer is directed to adjust the actual control reservoir pressure to a value slightly above (if desiring to increase IAR pipe pressure) or below (if desiring to decrease IAR pipe pressure) the setpoint until the actual IAR pipe pressure reaches the setpoint. While monitoring the actual IAR pipe pressure, the computer then adjusts the actual control reservoir pressure to maintain the actual IAR     pipe pressure at the setpoint corresponding to the position of the independent brake handle.
Patent CA-2241279-A1 (CA)
Inventor: STOY JAMES RAYMOND
IPC: E21B43/12
Filed: 1998-06-22
Abstract: Methods for completing and producing hydrocarbon from a well having a highly permeable production formation having a water zone and a hydrocarbon zone are disclosed. In the disclosed techniques a cased well borehole is cemented in place through the production formation. A packer is set in the casing to isolate the hydrocarbon zone from the water zone. Perforations in the water zone and in the hydrocarbon zone produce a mixture of both fluids into the casing/tubing annulus at different bottom hole pressures (BHFP's) due to the installation of a flow restriction limiting the flow of either hydrocarbon or water into the tubing string. Artificial lift means are used to produce the fluid mixture to the surface.
Patent CA-2241873-A1 (CA)
Title: Evaluation of the content of a data set using multiple and/or complex queries
Inventor: NELSON PHILIP C
IPC: G06F17/30
Filed: 1996-12-31
Abstract: The invention enables evaluation of the content of a set of data to determine whether the data set satisfies one or more queries. The invention enables rapid evaluation of large numbers of data sets much more rapidly than has previously been possible, even when the number of queries is large and/or the queries are complex. The queries are evaluated using an execution plan of query terms that is constructed from one or more specified queries by translating each query term of each query into one or more evidence descriptors and one or more combination operators, and operably relating each of the combination operators to at least one of the evidence descriptors or other combination operators, such that each query is defined by one or more of the evidence descriptors and one or more of the combination operators that are operably related to each other. Preferably, none of the evidence descriptors or combination operators are duplicated in the execution plan. The invention can be used to evaluate data sets of a variety of types, such as text documents and databases. The invention can be further optimized to achieve rapid evaluation of a data set with respect to the queries in two steps. First, one or more candidate queries that may be satisfied by the data set are identified by approximately evaluating each query. Second, each of the candidate queries is fully evaluated to determine whether the candidate query is satisfied by the data set.
Patent CA-2242739-A1 (CA)
Inventor: JURT ALFRED
IPC: A46D1/00
Filed: 1997-01-06
Abstract: The plastic bristle (5) comprises a core (6), which is formed from mutually parallel, interconnected plastic filaments (7), and a plastic sheath (8) which encloses said core (6). The filaments (7) project beyond the sheath (8) at the active end (5a) of the bristle (5). This is achieved by the end (5a) of the bristles (5) being rounded, the sheath (8) being removed mechanically by this operation.
Patent CA-2247852-A1 (CA)
Title: System for attaching and separating satellites
Inventor: MARTINEZ LORENZO
IPC: B64G1/64
Filed: 1998-09-25
Abstract: System for attaching and separating satellites which comprises an open ring or metal band (1) which has a channel formed in its inner perimeter, in which jaws are integrated in a discontinuous way, which can slide in the said channel, two end pieces (5) fixed to the ends of the said ring, a tensioning bolt (4) which joins the two end parts, and three supports for retaining the ring (1) which are fixed to the structure of the launcher (3) of a satellite (2). The invention can be applied to artificial satellites of any weight and size.
Patent CA-2250159-A1 (CA)
Title: Materials delivery device
Inventor: JEFFREY PETER
IPC: A61M5/142
Filed: 1997-04-01
Abstract: Materials delivery devices, e.g. for drugs etc. (Figs 1-7) or body fluids (Figs 8-12), have administration means of piston-and-cylinder (100; 300) or peristaltic rollers and tube (546, 565; 646, 665; 746, 765; 846, 865; 946, 965) type, and intermittently incremental drive transmission means of cooperating toothed rack (143) or wheel (345; 445; 545; 645; 745; 845; 945) and deflectable biassed pawl (153, 156; 343, 356; 453, 456; 553, 556; 653, 656; 753, 756; 853, 856; 953, 956) type driven by pulsed reciprocating solenoid action (110; 310; 410; 510). Portable patient-wearable drug delivery devices (10; 30; 40; 50) can use pre-loaded cartridges (120; 320; 420; 520) and have solenoid drive (130) for needle-entry and battery-powered electronic control, etc. Intravenous infusion pumps (60; 70; 80; 90) can operate relative to body fluid reservoirs or for body fluid transfers.
Patent CA-2255878-A1 (CA)
Title: Bifurcated paint roller and painting method
Inventor: WAKAT GEORGE H
IPC: B44D3/00
Filed: 1997-05-29
Abstract: A bifurcated paint roller (10) and painting method using such. The paint roller (10) is a hand tool having two roller portions (20), having a nap (160) for picking up and spreading paint. The roller portions are spaced transversely from each other and rotate independently of the other. A paint pan (50) includes two receptacle portions (54), each of which holds a paint having a different characteristic. A divider (56) separates the receptacle portions- The distal end of the hand tool includes an open-ended slot (22) for reception of the divider.   Alternatively, the hand tool may include tubes (182) mounted thereon and feeding paint to the roller portions. A painting method includes the steps of applying a paint having a first characteristic to a surface, rolling the roller portions with paint having respective second and third characteristics across the surface, and pressing and removing a plastic sheeting (120) to the surface immediately after the painting steps.
Patent CA-2257046-A1 (CA)
Inventor: BENDLE FRED
IPC: B29C53/06
Filed: 1998-12-24
Abstract: A method of enclosing a top of a bathing enclosure. A first step involves providing a heat mouldable polymer plastic panel having a first face and a second face. A second step involves making a linear cut through the first face of the panel to form a fold line. A third step involves heating the second face of the panel while bending the panel along the fold line to form a desired shape. A fourth step involves securing an edge of the panel along a top periphery of a bathing enclosure that extends from a wall. A fifth step involves leaning the panel at an angle of at least 20 degrees against the wall.
Patent CA-2258380-A1 (CA)
Title: Modular universal flat bed cart with variable support and maneuvering handles
Inventor: SCHWICHTENBERG BRAD R
IPC: B62B3/02
Filed: 1999-01-07
Abstract: A modular, universal, molded plastic flatbed type cart (1) for carrying and supporting products includes variable interchangeable handles (7, 19, 32, 40, 34) located at opposed ends of the cart. The handles include vertical posts (7, 8, 36) continuous U-shaped handles (19), handles with a collapsible tray (32), and connector rails (19) spanning the handles from one end of the cart to the other. The product handles are usable for manipulating the cart supporting products and are integrated into the metal cart bed reinforcing elements (4).
Patent CA-2258507-A1 (CA)
Inventor: ROSEN CRAIG A
IPC: C07K16/24
Filed: 1996-06-17
Abstract: Membre de la famille des protéines chemokines CC humaines, et plus particulièrement molécules isolées d'acide nucléique codant la protéine chemokine .beta.-15. L'invention porte également sur des polypeptides chemokine .beta.-15 et sur des méthodes diagnostiques pour détecter les dysfonctionnements du thymus et sur des méthodes thérapeutiques pour moduler la prolifération et la différenciation des cellules de la moelle osseuse.
Patent CA-2262099-A1 (CA)
Title: Electrode with a helical attachment
Inventor: PFAFFEL JOHANN
IPC: H01J61/073
Filed: 1999-02-17
Abstract: An electrode for electrical lamps comprises a core pin with a pushed-on helical member. A boss (9) projecting beyond the diameter of the core pin (7) is laterally constructed on the core pin at a spacing from the tip, the helical member (8) being arranged with at least one turn behind the boss.
Patent CA-2265960-A1 (CA)
Title: Self-tightening shoe
Inventor: CROTEAU HANS S
IPC: A43C11/16
Filed: 1996-09-30
Abstract: The shoe incorporates adjustable straps (18) that are positioned to tighten the shoe casing (12) around a wearer's instep. A retractor mechanism (28) incorporates elastic members (84, 86, 130, 132). The elastic members (84, 86, 130, 132) are charged when the wearer loosens the shoe by pulling on the straps (18). The stored energy is released when a catch (104, 156) is released releasing the elastic members (84, 86, 130, 132) to tighten and cinch the shoe on the wearer's foot. During charging a first elastic member (18, 130) is extended an intermediate distance and a second elastic member (86, 132) is charged a greater distance. The second elastic member (86, 132) triggers the release of the first elastic member (84, 130) when it reaches the intermediate position, increasing the tension available for cinching the straps.
Patent CA-2266074-A1 (CA)
Inventor: MURRAY MICHAEL P
IPC: B41F17/34
Filed: 1997-09-17
Abstract: A compliant doctoring cup (12) particularly suited for inking non-flat plates (14), includes a body (18, 20, 22) defining a cavity for containing ink, and a blade (16) with two free ends (19, 19') coupled to the body along a periphery of the cavity. The body of the cup (12) defines a channel (19) generally along the periphery of the cavity, and the blade (16) is positioned with the channel (19). A resilient member, for example, a liner (18) interfaces the blade (16) to the body of the cup (12). The liner (18) contains the ink and defines the channel (19).
Patent CA-2266861-A1 (CA)
Inventor: MEYER MONTE W
IPC: A01M19/00
Filed: 1999-03-23
Abstract: The present invention is embodied within a portable exterminating apparatus using an ignited charge of gas to produce both concussion and heat within the burrow of a rodent, along with residual toxic fumes, all contributing to rodent extermination. The heat, concussion and toxicity produced by the present apparatus have a cumulative effect which greatly increases its effectiveness. The present invention comprises: a barrel, an injection control assembly, an ignition system, and a barrel system. The barrel from the barrel system of the apparatus is positioned for insertion of its nozzled end into the burrow opening facilitating discharge of a mixture of oxygen and an inflammable gas into the rodent's burrow and the subsequent ignition of this mixture. A mixing chamber allows for the mixing of an inflammable gas, such as propane, with oxygen, preferably from a bottled oxygen source, at a desired ratio. This ratio being variable by means of pair of adjustable valve members, one regulating the oxygen intake opening and the other regulating the gas intake opening. This mixture is then discharged by the user, while the apparatus is in use, into the barrel through use of a discharge valve. The ignition switch is conveniently located near the discharge valve for convenient one-hand operation of the apparatus. The ignition switch is part of the ignition system further comprising a battery and an improved ignition component inducing arcing across a pair of electrodes located within the nozzled end of the apparatus. The present invention also includes the safety features of a pressure sensor and a check valve.
Patent CA-2267918-A1 (CA)
Title: Circuit arrangement for operating low-pressure discharge lamps
Inventor: ZUCHTRIEGEL ANTON
IPC: H05B41/00
Filed: 1999-04-06
Abstract: In the circuit arrangement for the high-frequency operation of a low-power low-pressure discharge lamp having a mains rectifier and a half-bridge circuit, a diode is connected in series and in the DC non-conducting direction in the connecting line between the second electrode of the lamp and the positive or negative pole of the rectifier.  Moreover, the tap between the diode and the second electrode is connected to the other pole of the mains rectifier via a capacitor, and a resistor is connected in parallel with the diode. The circuit thus created acts as a passive harmonic filter which fulfills for the circuit arrangement the IEC regulations of class D with reference to line current harmonic content.