baber/WOPTO huggingface dataset:
Patent CA-2070543-C (CA)
Title: Video motion detector with full-band response except for diagonal spatial frequencies
Inventor: KO JUNG-WAN
IPC: H04N9/78
Filed: 1992-06-05
Granted: 1999-06-15
Abstract: In a motion detector operative on a composite video signal comprising chrominance, signal components as well as a luminance signal component, the chrominance signal components are suppressed by a filter that removes only diagonal high frequencies in the spatial-frequency domain. These diagonal high frequencies in the spatial-frequency domain include the chrominance signal components of the composite video signal in accordance with a standard such as the NTSC standard. Motion detection is improved by reason of including more of the spatial high-frequency components.
Patent CA-2071426-C (CA)
Inventor: LIN JIN-CHEN
IPC: F16C35/06
Filed: 1992-06-17
Granted: 1996-08-06
Abstract: An axle structure for driving a bicycle to move includes an axle rotatably mounted in an axle housing which then, rigidly connected into a shell to transfer force received from a pair of cranks to a driven chain wheel to drive the bicycle forward.
Patent CA-2071594-C (CA)
Title: Methods for nucleic acid amplification
Inventor: ERLICH HENRY A
IPC: C12Q1/68
Filed: 1992-06-18
Granted: 2003-06-17
Abstract: Methods are provided for enhanced specificity and sensitivity of nucleic acid amplification. The methods are simplified nested amplification procedures wherein both inner and outer primer pairs are present in the amplification reaction mixture. According to the methods, the thermocycling profile, as well as the sequences, length, and concentration of amplification primers, is modified to regulate which primers are annealed and extended on the target during any particular amplification cycle. The methods described are particularly suitable in PCR amplifications and have numerous applications in molecular biology, medical diagnostics and forensics.
Patent CA-2077275-C (CA)
Title: Engine/pump with eccentric elliptical gear mechanism
Inventor: AROV ANATOLY
IPC: F02B53/02
Filed: 1992-09-01
Granted: 1998-04-21
Abstract: A particular arrangement for controlling the rotational movements of vanes of a vaned engine or pump are disclosed.  The rotational movement, in particular the relative movement of the vanes during the various cycles, are controlled by an elliptical gear train.
Patent CA-2077604-C (CA)
Title: Method and apparatus for determining the frequency of words in a document without document image decoding
Inventor: CASS TODD A
IPC: G06V30/262
Filed: 1992-09-04
Granted: 1999-07-06
Abstract: A method and apparatus for determining word frequency from a document without first converting the document to character codes.  The method includes morphological image processing to determine word unit characteristics for placement into equivalence classes utilizing non-content based information.  Word shape representations are preferably determined and compared to define equivalent word units.
Patent CA-2078178-C (CA)
Title: Method of securing a conductor to a ceramic ptc
Inventor: BELHOMME CHARLES J G
IPC: B23K35/36
Filed: 1992-09-14
Granted: 2003-02-18
Abstract: The invention provides a method of soldering a conductor on to a ceramic resistor body having a positive temperature coefficient, said method employing a soldering flux which is free of organic compounds having a high molecular weight. Preferably, the soldering flux comprises an aqueous solution of zinc chloride and hydrazine hydrochloride. The inventive method reduces the risk of explosion of soldered PTCs.
Patent CA-2079259-C (CA)
Inventor: RICHARDSON PHILIP
IPC: A61B17/06
Filed: 1992-09-28
Granted: 1998-11-10
Abstract: Surgical suturing apparatus comprises upper and lower jaw elements selectively movable relative to one another between open and closed position. Each jaw element is provided with a respective recess arranged to receive a portion of an elongate incision member or length of surgical thread and securing means is provided arranged to selectively secure the surgical incision member or length of surgical thread in a respective recess. The jaw elements are typically provided at an end of an elongated positioning and operating arm making the device particularly useful for use in laparoscopic surgery.
Patent CA-2080149-C (CA)
Title: Permanent magnet brushless dc motor having reduced cogging
Inventor: GIZAW DANIEL
IPC: H02K23/42
Filed: 1992-10-08
Granted: 2002-04-02
Abstract: An improved salient pole configuration for a dynamoelectric machine is disclosed, particularly for a permanent magnet brushless DC motor wherein cogging torque is a problem. One or more apertures or "reluctance holes" are disposed within the head portion of the salient poles in the stator such that the reluctance holes are substantially adjacent but not adjoining the pole face, thereby forming a bridge between the aperture and the pole face. The reluctance hole bridge provides a substantially constant air gap flux density to reduce cogging, while at the same time, provides a low reluctance shunt path for the armature reaction flux around the permanent magnet to improve the demagnetization margin. The efficiency of the machine is also improved.
Patent CA-2082139-C (CA)
Title: Deactivating device for deactivating eas dual status magnetic tags
Inventor: BALCH BRENT F
IPC: G08B13/24
Filed: 1992-11-04
Granted: 1997-11-11
Abstract: A deactivating device for deactivating a dual status EAS tag for use in an EAS system in which the device utilizes a detection field for detecting the presence of an active tag in a detection/deactivation zone and in which the device further utilizes a deactivation field which is matched to the detection field.
Patent CA-2083727-C (CA)
Title: Method of redirecting a telephone call to an alternate destination
Inventor: CHAKRAVARTI VANDANA S
IPC: H04M3/46
Filed: 1992-11-25
Granted: 1997-03-25
Abstract: A facility is provided for redirecting a call from one destination point in a communications network to another destination point in the event that the call is not answered within a predetermined period of time, or in the event that after the call has been answered, the called party requests such redirection.
Patent CA-2090509-C (CA)
Title: Process for preparing fibrinogen receptor antagonists
Inventor: CHUNG JOHN Y L
IPC: A61K31/4465
Filed: 1993-02-26
Granted: 1997-02-25
Abstract: The invention is a highly efficient synthesis for making compounds of the formula:       wherein: R1  is   a six member saturated or unsaturated heterocyclic ring containing one or two heterocyclic atoms wherein the heteroatoms are N; or NR6, wherein R6 is H or C1-10 alkyl; m   is an integer from two to six; and R4  is aryl, C1-10 alkyl, or C4-10 aralkyl.
Patent CA-2092911-C (CA)
Inventor: LUESSI ANDRE
IPC: A47J31/40
Filed: 1992-07-28
Granted: 2000-11-21
Abstract: Un dispositif de préparation comprend un cylindre de préparation (9) pourvu d'un passage cylindrique (10) dans lequel un piston inférieur (8) peut se déplacer librement dans le sens longitudinal. Un piston supérieur (7) est fixé à demeure à un cadre (1). Une broche d'entraînement (6) pourvue d'organes de guidage (23) s'étend parallèlement au cylindre de préparation vertical (9). Un organe d'entraînement (24) relié au cylindre de préparation comprend d'autres organes de guidage (25) qui sont en prise avec ceux de la broche d'entraînement (6). Lorsque l'on met en rotation la broche d'entraînement (6) dans l'une ou l'autre direction, le cylindre de préparation monte ou descend. Le café en poudre est introduit dans le cylindre de préparation par l'intermédiaire d'un entonnoire pivotant (12). Afin de déterminer la quantité de café en poudre introduite, le cylindre de préparation monte en un temps contrôlé jusqu'à ce qu'une force contraire appliquée par le piston supérieur (7) sur le café en poudre comprimé soit égale à la force d'entraînement de la broche. La chambre de préparation formée entre les deux pistons (7, 8) est à nouveau légèrement élargie avant le processus de préparation proprement dit, pour que le café en poudre puisse être infusé sans être trop tassé, ce qui est préférable lors de la préparation du café. Ce dispositif de préparation se caractérise en particulier par une structure simple ayant peu de pièces d'usure. L'élimination d'interrupteurs de fin de course, compte tenu du contrôle du temps de déplacement de la broche d'entraînement, contribue à simplifier la structure du dispositif de préparation.
Patent CA-2109977-C (CA)
Title: Giardia vaccines
Inventor: OLSON MERLE E
IPC: C07K16/20
Filed: 1993-11-25
Granted: 2009-05-12
Abstract: The invention provides vaccines and methods for preventing or treating intestinal protozoal infections in an animal. In particular, vaccines and methods for prevention or treatment of giardiasis are provided. The invention also encompasses methods of preparing and methods of use of novel toxins, antibodies, vaccine strains and compositions that result from or are used in these methods.
Patent CA-2110650-C (CA)
Inventor: KELLER SILVANO
IPC: C23C4/134
Filed: 1993-12-03
Granted: 1997-11-25
Abstract: The plasma spray apparatus for the coating of the inner walls of bores and tubes essentially comprises a housing, a supply member, a plasma gun shaft member and a plasma gun head member. The plasma torch created in the head member escapes transversely with regard to the central longitudinal axis of the plasma spray apparatus. The supply member is rotatably received in the interior of the housing and is driven by an electric motor and a gear box. The supply member comprises a swiveling coupling member by means of which the plasma gun shaft member is connected to the shaft member. Thus, the rotatable shaft member can be radially deflected with reference to the axis of rotation. Thus, the head member fixed to the free end of the shaft member can be radially adjusted. With such a plasma spray apparatus, bores and tubes having greatly varying inner diameters can be reliably coated.
Patent CA-2111169-C (CA)
Inventor: ARTUS SURROCA JUAN JOSE
IPC: A61K31/22
Filed: 1993-12-10
Granted: 2001-05-01
Abstract: The invention relates to phenylacetic acid derivatives, a process for the preparation thereof and corresponding use. These derivatives are identified by the following formula:       where R1, R2 and R3 are the same or different and are a either methyl, ethyl or propyl radicals; or R2 and R3, which are attached as shown by -(R2....R3)-, jointly form a -(CH2)n- radical where n = 4 or 5, with the exception of the case where R1 = R2 =      R3 = CH3, and also with the exception of the case where R1 = R3 =      CH3 and R2 = ethyl; the process comprises the reaction of a diclofenac salt with the corresponding alkyl haloacetate of formula X-CH2-COO-CR1R2R3, (X = Cl or Br) in an homogenous medium.  They are used for the preparation of [2-(2,6-dichloroanilino)phenyl]acetoxyacetic acid, by treatment with acids in an anhydrous medium. The derivatives have therapeutic activity as analgesics or anti-inflammatories.
Patent CA-2115987-C (CA)
Inventor: EYRAUD CHARLES
IPC: B03C3/32
Filed: 1992-08-20
Granted: 1998-11-03
Abstract: PCT No. PCT/FR92/00811 Sec. 371 Date Mar. 16, 1994 Sec. 102(e) Date Mar. 16, 1994 PCT Filed Aug. 20, 1992 PCT Pub. No. WO93/03849 PCT Pub. Date Mar. 4, 1993A gas is purified using both mechanically atomized liquid and liquid dispersed by electrostatic atomization at asperities arranged at surfaces of emitting electrodes. The concentration of washing liquid between the make-up pipeline and discharge pipeline is obtained, on the one hand, by recycling using atomization pipes of a group of electrodes for the run-off liquid collected by an accumulation tank and, on the other hand, using a back-flow of the liquid between successive accumulation tanks through interconnecting pipelines. A physical and/or chemical treatment line for the liquids and the sludges is also associated with the gas treatment line.
Patent CA-2120171-C (CA)
Title: Linear electromagnetic driving apparatus and use of same for lens adjustment
Inventor: SAKAMOTO SATOSHI
IPC: G02B7/10
Filed: 1994-03-29
Granted: 2002-12-31
Abstract: A linear electromagnetic driving apparatus includes a substantially rectangular tube-shaped magnetic yoke comprised of outer and inner frame plates spaced apart to form a gap with at least one magnet secured to an outer or inner frame plate to generate magnetic flux. A bobbin supporting a coil which extends in a direction parallel to the longitudinal axis of the magnetic yoke is positioned in the gap. A driven member is secured to and coaxial with the bobbin and has openings to receive the inner frame plates of the yoke such that when the coil is energized to move the bobbin in the gap, the inner frame plates extend into and through the bobbin and into and through the openings of the driven member. A fixed shaft extends parallel to the longitudinal axis of the yoke; and a bearing secured to the bobbin structure and extending outwardly therefrom receives and is slidable on the fixed shaft. At least one of the corners formed on the rectangular tube-shaped yoke is cut out to define an open portion through which the bearing passes so as to be unobstructed as the bobbin slides within the yoke.
Patent CA-2124117-C (CA)
Title: Removable and guillotinable emulsion pressure-sensitive adhesives
Inventor: REAVES JESSIE COSTON
IPC: C09J7/02
Filed: 1992-11-20
Granted: 2003-07-01
Abstract: There is provided a removable, repositionable and guillotinable pressure-sensitive construction comprising a backing hav-ing thereon an acrylic emulsion adhesive modified by a wax surfactant or mixtures thereof. Removability may be enhanced by use of a plasticizer.
Patent CA-2125751-C (CA)
Title: Polarization independent transmissive/reflective optical switch
Inventor: CHROSTOWSKI JACEK
IPC: G02F1/31
Filed: 1994-06-13
Granted: 2001-09-04
Abstract: In an optical fibre system, an optical fibre is monitored to determine if a transmitted signal is being received at a receiving end. A bi-modal optical switch located between the laser transmitter and receiver operates in a first transmitting mode to allow a transmitted signal to pass through and in a second reflecting mode to reflect back the transmitted signal to the transmitting end. A monitor at the transmitting end monitors the fibre for the absence or presence of the reflected signal. The switch can be used to remotely monitor the receiver in an optical fibre link, to control handshaking between two computers, to remove idle sections from an optical fibre communications network, and to control the reflectance of a laser mirror.
Patent CA-2129228-C (CA)
Title: Mixing valve with a collared ball valve
Inventor: TANG TAGE
IPC: F16K11/087
Filed: 1992-09-22
Granted: 1998-07-14
Abstract: A mixing valve for a faucet has a ball valve (16) mounted for pivotable motion about a longitudinal axis (76) and a second perpendicular axis (86) that is fixed with respect to the pin (84) that extends through the spherical section (42) of the ball valve (16). Distal ends of the pin are connected to a collar (46) that is fitted about the spherical section (42). The collar has cam stops that abut an edge (102) of upturned flange (104) of a seating ring (48). The spherical section (42) has inlet openings (90, 94) that are configured  with convex and concave sections to produce a desired flow pattern.
Patent CA-2134107-C (CA)
Title: Gas barrier coating and coated elastomeric toy balloons
Inventor: SINCLAIR HAROLD K
IPC: A63H27/10
Filed: 1993-03-12
Granted: 2002-02-05
Abstract: The floating life of toy elastomeric balloons inflated with helium is greatly increased through modifying polyvinyl alcohol coatings from the prior art by removing the glycerine plasticizer from the coating and adding an extender comprised of a saccha-ride, such as dextrose, at levels up to four times the weight of polyvinyl alcohol. The improved coatings of the present invention typically give double the floating life of the prior art coatings under a wide range of humidifies.
Patent CA-2138468-C (CA)
Title: Cycloolefin copolymers and process for their preparation
Inventor: KREUDER WILLI
IPC: C08F8/46
Filed: 1994-12-19
Granted: 2007-01-30
Abstract: Cycloolefin copolymer having a solution viscosity (eta) > = 0.25 dl/g, A) comprising polymerized units of at least one polycyclic olefin, B) polymerized units of at least one olefin which comprise at least one double bond and, if desired, C) polymerized units of one or more acyclic monoolefins, wherein the equivalent weight with regard to olefinic double bonds is less than or equal to the number-average molecular weight, and which additionally contains at least one repeating unit which possesses at least two electronwithdrawing groups. The cycloolefin copolymer is suitable as a coating composition and as an additive.
Patent CA-2144082-C (CA)
Title: Toxic remediation system and method
Inventor: MATTHEWS STEPHEN M
IPC: B01D53/70
Filed: 1993-08-11
Granted: 1999-10-12
Abstract: What is disclosed is a novel toxic waste remediation system designed to provide on-site destruction of a wide variety of hazardous organic volatile hydrocarbons, including but not limited to halogenated and aromatic hydrocarbons in the vapor phase. This invention utilizes a detoxification plenum (31) and radiation treatment which transforms hazardous organic compounds into non-hazardous substances. Said plenum is shielded by surrounding earth. An accelerator electron (32) is coupled to said plenum with a window (35, 36). Vapor passes through the plenum where it is exposed to an electron beam and exits through outlets (42, 43).
Patent CA-2144277-C (CA)
Title: Atm switching systems
Inventor: HAYTER ANDREW T
IPC: H04L12/56
Filed: 1995-03-09
Granted: 2006-05-16
Abstract: An ATM switching system comprising at least one server statistical multiplexing unit (Server SMU), which facilitates the transmission of ATM cells between input and output ports which do have buffers and flow control, and input and output ports which do not have buffers and flow control.
Patent CA-2144611-C (CA)
Inventor: HARTMANN ACHIM
IPC: C01G23/07
Filed: 1995-03-14
Granted: 1999-09-28
Abstract: Small quantities of an alkali metal salt control additive, along with the addition of a rutile promotion additive, preferably aluminum trichloride as rutile promoter, is added in the oxidation of titanium tetrachloride into the titanium dioxide burner reaction zone.  Metal used to make aluminum trichloride is introduced into a aluminum chloride generator reactor in a main branch, and the alkali metal salt is introduced in a subsidiary branch in a controlled addition provided by a "dilution" mixture of the salt in aluminum powder and preferably by applying additional agents which improve the free-flowing properties of the mixture such as, for example, anhydrous potassium oleate.
Patent CA-2148327-C (CA)
Title: Raised center sanitary napkin with raised edges
Inventor: MCCOY SHERILYN S
IPC: A61F13/475
Filed: 1995-05-01
Granted: 2007-03-06
Abstract: A feature of this invention is the raised longitudinal hydrophobic edges or edge members in combination with the raised central member. Since the raised central member captures the body fluids close to the source of fluid discharge it contains the body fluids in the central portion of the napkin. In addition, the raised hydrophobic longitudinal edges or edge members prevent fluid from wicking through to the undergarment of the user.
Patent CA-2148761-C (CA)
Title: Rare earth sulfide composition containing at least one alkaline element; process for preparing the same and use thereof as a colored pigment
Inventor: MACAUDIERE PIERRE
IPC: A61K8/00
Filed: 1995-05-05
Granted: 2001-07-24
Abstract: The compsns. are based on a rare earth metal sulphide doped with ≥ 1 alkali metal, where the sulphide is in the form of microcrystalline particles with an average size of  NOTGREATER  1.5 mu m. Also claimed is: (i) a process for prepn. of a compsn. based on a rare earth metal sulphide doped with ≥ 1 alkali metal, comprising contacting a rare earth metal carbonate or hydroxycarbonate with ≥ 1 alkali metal cpd. and heating in the presence of H2S and/or CS2; (ii) a coloured pigment comprising ≥ 1 compsn. as above; and (iii) coloured materials, esp. plastics, paints, lacquers, rubber, ceramics, glazes, paper, inks, cosmetic prods., dyes (teintures) and laminated coatings, contg. a compsn. or pigment as above.
Patent CA-2148842-C (CA)
Inventor: KITTLE KEVIN JEFFREY
IPC: C09D5/46
Filed: 1993-11-05
Granted: 2004-07-06
Abstract: A powder coating composition comprises at least one film-forming polymeric material and has dry-blended therewith two or more dry-blended additives selected from solid, particulate, inorganic, water-insoluble materials which may be ceramic or mineral materials and/or may be oxides, mixed oxides, hydrated oxides, hydroxides, oxide-hydroxides or oxysalts of metals and metalloids, at least 95 % by volume of the powder coating composition having a particle size not exceeding 50 microns.
Patent CA-2150462-C (CA)
Inventor: STROPPOLO FEDERICO
IPC: A61K47/12
Filed: 1993-11-23
Granted: 2005-04-19
Abstract: A syrup containing N-acetyl-cysteine, stable for at least two years having pleasant taste and smell, consists of an aqueous solution of NAC, a sweetening agent and a thickening agent. The solution can also contain a flavouring agent and a preservative. The pH is between and 8.
Patent CA-2155131-C (CA)
Title: Downhole gas-liquid separator for wells
Inventor: WEINGARTEN JEAN S
IPC: B01D19/00
Filed: 1994-04-20
Granted: 2001-06-12
Abstract: A downhole gas-liquid separator (36) for multiphase fluid producing wells (10) includes a tubular member (39) with a spiral baffle (42) disposed therein and a duct (48) including an inlet (50) disposed adjacent the discharge end (46) of the spiral baffle (42). Fluid flow into the separator (36) undergoes substantial gas an d liquid separation by centrifugal forces imposed on the liquid as it progresses through the spiral flowpath (43). Gas is drawn off at the discharge end (46) of the spiral baffle (42) and discharged into the wellbore annulus (26) while liquid and a small amount of gas pass on through the separator (36) and the production tubing (22) to the surface. The spiral baffle (42) may be disposed in the wellbore between the distal end (23) of the production tubing string and the point of entry (20) of gas and liquid into the wellbore. The separator (36) may inlcude a retrievable tubular body (80) inserted in a ported nipple (66) interposed in the tubing string (22).
Patent CA-2164535-C (CA)
Title: Exposure apparatus
Inventor: ISHIKAWA MASAZUMI
IPC: H04N1/50
Filed: 1995-12-06
Granted: 2000-07-25
Abstract: The converter circuit (63) has such data for conversion in which the duration of voltage application to the PLZT elements is determined so that the gray levels are proportional to the actual density of color.      The PLZT controller circuit (64) is provided for applying a given voltage to a group of PLZT elements for the duration T.
Patent CA-2170145-C (CA)
Inventor: WEAVER MAX ALLEN
IPC: C08G63/685
Filed: 1994-08-17
Granted: 1999-06-22
Abstract: This invention provides certain blue substituted 1,4-bis(2,6dialkylanilino) anthraquinones in combination with selected red anthraquinone and anthrapyridone (3H dibenz[fij] isoquinoline-2,7-dione) compounds which provide a toner system useful in imparting a desirable neutral to slightly blue hue to polyesters having a yellow appearance. The thermally stable colored compounds can have polyester reactive groups and are preferably incorporated into the polyester polymer structure during polymerization.
Patent CA-2173711-C (CA)
Inventor: FARNWORTH BRIAN
IPC: A41D3/00
Filed: 1996-04-09
Granted: 2005-11-15
Abstract: A parka is formed with a substantially rhomboid shaped beaver tail secured at the center and adjacent to the bottom of the back of the parka and is movable from a stored position to a deployed operative position wherein it extends between the legs and part way up the front of the parka, thereby to pull the bottom circumferential edge of the parka into close relationship with the top, the outside of the legs of the wearer while the beaver tail is in close contact with the inside of the legs in the crotch area to provide a better sealed garment.