baber/WOPTO huggingface dataset:
Patent CA-1331989-C (CA)
Title: Dianhydride coupled polymer stabilizers
Inventor: BARON ARTHUR L
IPC: C08K5/00
Filed: 1988-08-15
Granted: 1994-09-13
Abstract: DIANHYDRIDE COUPLED POLYMER STABILIZERS            ABSTRACT OF THE DISCLOSURE          The present invention comprises reaction products resulting from the reaction of hydrazido-substitued or certain aminosubstituted polymer stabilizers and cyclic dianhydrides, as well as the use of such products.  The polymer stabilizers of the invention are useful for protecting a large variety of synthetic polymeric organic materials from the degradative effects of heat, light and oxygen.  Some of the modifiers are flame retardants and many are metal deactivators in addition to their primary activity.
Patent CA-1288816-C (CA)
Title: System for diagnosing defects in electronic assemblies
Inventor: BAKER JOHN R
IPC: G06F19/00
Filed: 1988-08-22
Granted: 1991-09-10
Abstract: ABSTRACT OF THE DISCLOSURE A  system  (20)   for  diagnosing  defects  in  electronic assemblies is disclosed.  The system (20) comprises a knowledge base (26)  for storing information regarding the electronic assembly for receiving current test failure data regarding an electronic assembly (12).  The system further comprises a pattern search section (36) for comparing current test failure data to information stored in the knowledge base  (26).  A voting section  (40)  is also provided for generating a recommended repair procedure to eliminate the defect in the  electronic  assembly  (12).   Finally,  the  system  (20)  further comprises a historical pattern generation section (46) which updates the  knowledge  base  (26)  with  information  regarding  whether  the recommended repair procedure eliminated the defect.
Patent CA-1320751-C (CA)
Title: Fm-cw radar apparatus
Inventor: REITS BERNARD J
IPC: G01S13/34
Filed: 1988-09-26
Granted: 1993-07-27
Abstract: Abstract The invention relates to an FM-CW radar apparatus where the frequency sweep duration (R) corresponding with the transmitted signal is increased to obtain a mixing signal which is operational in a wider frequency range than the frequency sweep of the transmitted signal. This has the effect that processing of echo signals of sufficient length can be realised, also from objects which are located near the limits of the radar range.
Patent CA-1337575-C (CA)
Inventor: HERT MARIUS
IPC: C08F210/02
Filed: 1988-10-14
Granted: 1995-11-14
Abstract: Polymers with a melt index of between 1 and 20 dg/min, containing units (A) derived from ethylene, units (B) derived from an anhydride of an ethylenically unsaturated  alpha , beta -dicarboxylic acid and, if appropriate, units (C) derived from an alkyl acrylate or methacrylate whose alkyl group contains from 1 to 12 carbon atoms, characterised in that, per 100 moles, they contain: from 83 to 99.7 moles of units (A), from 0.29 to 3 moles of units (B), from 0 to 13.6 moles of units (C) and additionally from 0.01 to 0.4 moles of units (D) derived from at least one polyol poly(meth)acrylate. The process for their preparation consists in copolymerising a mixture of ethylene, of anhydride of an ethylenically unsaturated alpha , beta -dicarboxylic acid, of at least one polyol poly(meth)acrylate and, if appropriate, of at least one alkyl (meth)acrylate, at a temperature of between 140 and 280 DEG C, at a pressure of between 1000 and 2500 bars, in the presence of at least one free-radical initiator, and is characterised in that, before the copolymerisation, the polyol poly(meth)acrylate is dissolved in a solvent.
Patent CA-1300482-C (CA)
Title: Carrier assembling apparatus
Inventor: CUNNINGHAM ERNEST R
IPC: B65B17/02
Filed: 1988-12-13
Granted: 1992-05-12
Abstract: ABSTRACT OF THE DISCLOSURE             An apparatus for installing a plastic carrier onto a plurality of side-by-side cans includes a pair of canted discs arranged for rotation around non-coincident intersecting axes.  A number of shoes around the periphery of each disc, engage opposite edges of the carrier and expand the carrier as the discs rotate, while a conveyor moves the side-by-side cans into registry with the expanded carrier.  A rolling depressor, between the discs, presses downwardly on the expanded carrier, urging the carrier away from the shoes and onto the cans.
Patent CA-1318795-C (CA)
Title: Step frequency fibre optical fault locator
Inventor: IIZUKA KEIGO
IPC: G01M11/00
Filed: 1989-01-19
Granted: 1993-06-08
Abstract: ABSTRACT OF THE DISCLOSURE           A method and apparatus for determining the location of a discontinuity in a transmission medium such as an optic fibre is disclosed.  Wave energy is transmitted through the medium at a predetermined modulation frequency and the phase difference of the transmitted and reflected waves are compared to provide a number of possible locations of the faults.  The procedure uses a number of different modulation frequencies to determine uniquely locations of multiple faults in the optic fibre.
Patent CA-1338092-C (CA)
Title: Stabilization systems for polyacetals
Inventor: CAPOCCI GERALD A
IPC: C08G2/08
Filed: 1989-03-16
Granted: 1996-02-27
Abstract: The invention concerns a blend of:       (a)  a phenolic antioxidant such as a compound of the formula R1X(CaH2a)-Q in which R1 represents   in which X represents oxygen or sulfur, a is an integer from 6 to 30, b is an integer from 0 to 6, R2 and R3 are independently C1-C18 alkyl, C5-C12 cycloalkyl, phenyl or C7-C9 aralkyl and R2 may also be hydrogen, Q is hydrogen or A-(CyH2y)-R4, A is oxygen, sulfur or -N-, y is an integer from 2 to 20, B is C1-C4 alkyl or C1-C4 alkanoyl and R4 is hydrogen, hydroxy, C1-C4 alkanoyloxy or a group of the formula   wherein R2, R3 and b is as defined above; and (b)  a hydrazine compound such as a compound of the formula   in which R12 is a group such as C1-C18alkyl, C1-C18 alkyloxy, phenyl, C7-C9 aralkyl; or (c)  an oxamido compound of the formula   in which R15 is a group such as C1-C18 alkyl, phenyl, C7-C9 aralkykl and v is an integer from 0 to 6; the weight ratio of the components (a):(b) or (a):(c) is 20:1 to 1:10.  This blend is useful in reducing colour formation in acetal homo or copolymers containing component (a).
Patent CA-1307328-C (CA)
Title: Alternating current amplifier with digitally controlled frequency response
Inventor: HENDERSON ROBERT M
IPC: H03F1/34
Filed: 1989-03-31
Granted: 1992-09-08
Abstract: ALTERNATING CURRENT AMPLIFIER WITH DIGITALLY        CONTROLLED FREQUENCY RESPONSE                  Abstract of the Disclosure An improved A.C. amplifier circuit is disclosed which allows for digital control of the frequency response of the amplifier.  A fixed capacitor is serially coupled to a multiplier circuit and the serial combination placed in the feedback path of an operational amplifier circuit.  The multiplier provides an output voltage which is proportional to the binary value of a digital control signal and the voltage output of the amplifier circuit.  By altering the digital control signal, the effective value of the fixed capacitor may be altered to balance the input capacitance of the amplifier and thereby minimize the effect of the input capacitance on the amplifier frequency response.
Patent CA-1299078-C (CA)
Inventor: BIAGIOTTI GUGLIELMO
IPC: B65H19/30
Filed: 1989-04-07
Granted: 1992-04-21
Abstract: ABSTRACT         Pairs of rollers which receive and make the reel rotate are mounted on a device rotating about a fixed axis,  there being associated with said device means designed to keep the axes of the rollers of each pair on a horizontal plane during rotation of the device itself, gluing and rewinding of the strip, and means for impart-ing to said pairs of rollers an oscillation for unloading the glued reel.
Patent CA-1318978-C (CA)
Title: Extended input/output circuit board addressing system
Inventor: CULLEY PAUL R
IPC: G11C8/10
Filed: 1989-05-04
Granted: 1993-06-08
Abstract: EXTENDED INPUT/OUTPUT CIRCUIT BOARD ADDRESSING SYSTEM    ABSTRACT OF THE INVENTION      An extended addressing system for allowing use of existing circuit boards but obtaining more address space is disclosed.  If given bits in the address value indicate that a former system board address is being presented previously unutilized higher order bits are used as a slot identifier that slot's AEN signal is made low, while all the remaining AEN signals to each slot are made high to disable operation.  All the AEN lines remain low is an existing circuit board address is presented or a memory operation is occurring.  All the AEN lines go high during a DMA operation.
Patent CA-1326199-C (CA)
Inventor: REDDY PRATAP K
IPC: A61M25/10
Filed: 1989-05-09
Granted: 1994-01-18
Abstract: PROSTATE BALLOON DILATOR         Abstract An apparatus for dilation of the prostate urethra comprises a urinary catheter 10 for insertion in the prostate urethra, dilation means 18 mounted on the proximal section of the catheter and in communication with the interior of the catheter, location means 20 mounted axially on the catheter at a distance from the dilation means such that the location means is at the bulbous urethra when the dilation means is at the prostate urethra, and activating means for activating said dilation means and said location means.  A method for the treatment of benign prostatic hyperplasia comprises inserting a catheter having dilation means and location means and removing the catheter after dilation.
Patent CA-1309288-C (CA)
Title: Self-loading controlled deflection roll
Inventor: CROUSE JERE W
IPC: F16C17/03
Filed: 1989-06-14
Granted: 1992-10-27
Abstract: ABSTRACT OF THE DISCLOSURE      A self-loading type of controlled deflection roll has two sets of opposed, hydraulically actuated pressure shoes extending along its length.  Each set of opposed pressure shoes is arrayed in a plane and the two planes intersect perpendicularly with their line of intersection coincident with the longitudinal axis of the roll.  The distance from the surface of the beam on one pair of opposite sides to its longitudinal axis for one set of pressure elements is less than the corresponding distance on the other pair of opposite sides for the other set of pressure elements.          The self-loading roll is intended to be brought into nipping engagement with another roll.  The center support beam rotates in conjunction with a corresponding retraction of the pressure shoes in the oncoming direction toward the intended nip-line of engagement with another roll.  This permits the rotatable shell of the self-loading roll to be supported at a lower position relative to the longitudinal axis of the roll.   This creates a gap between the controlled-deflection roll and its mating roll.  Continued rotation of the self-loading roll causes the next set of oncoming pressure shoe(s) to rotate toward the nip-line of contact between the rolls.  Since the surfaces of the supporting shoes are further from the longitudinal axis in this oncoming group of support shoe(s), the roll shell is urged outwardly and into nipping engagement with its mating roll when this group of support elements is aligned in a plane extending along the longitudinal axes through the self-loading controlled deflection roll and its mating roll.
Patent CA-1323561-C (CA)
Inventor: KRY PETER R
IPC: E21B43/26
Filed: 1989-07-12
Granted: 1993-10-26
Abstract: A process is disclosed for achieving thermal communication and areal conformance in a weak uncemented tar sand formation between at least one injection well and at least one production well penetrating said formation, which comprises (1)  steam stimulation of said at least one production well by injection of steam for a time and at a volume and pressure sufficient to drive steam into said oil-bearing formation in the vicinity of said well, (2) terminating injection of steam to said at least one production well and producing fluids from said at least one production well while maintaining back pressure on said well to prevent substantial revaporization of steam condensate forming part of said fluids, until the bituminous fluid production rate is below an economically acceptable value, (3)  when the stress state favors horizontal fracturing, injecting a high viscosity fracturing fluid at said injection well at a rate and for a sufficient time to propagate horizontal fracturing from said injection well to said at least one production well, (4)  immediately subsequently injecting steam through said injection well at a rate and at a pressure necessary to promote material failure in said formation and which will decrease to less than overburden pressure while still in a state of net overinjection and producing steam condensate and bitumen at said at least one production well for a time sufficient to establish fluid communication and heated areal conformance between said injection well and said at least one production well.  A process is also disclosed for the production of bitumen from a weak tar sand formation which comprises the additional steps of (5)  reducing the rate of injection of steam at said injection well below that of said rate of production of fluids from said production well until the proportion of bitumen in said fluids from said production well decreases below a predetermined level, and (6)  increasing the rate of injection of steam at said injection well to increase the reservoir pressure at which the steam flood is occurring and condense vapours formed during step (5).
Patent CA-1312956-C (CA)
Title: Cmos digital to analog signal converter circuit
Inventor: PHILLIPS RICHARD S
IPC: H03K17/687
Filed: 1989-08-18
Granted: 1993-01-19
Abstract: ABSTRACT     A digital to analog converter comprising a differential amplifier formed of a pair of similar conductivity type field effect transistors, one transistor being connected to a load for driving the load in synchronism with a digital input signal, means for applying a reference voltage to the gate of the second transistor, and a third field effect transistor of conductivity type complementary to said one transistor, connected with its source-drain circuit in series with the source-drain circuit of the second transistor to a second reference voltage, and means for driving the gates of said one and third transistors together with said digital input signal, whereby the first and third transistors are synchronously and oppositely driven to conduct and cut off, thus ensuring substantially no current flow in the second transistor while the first transistor is conducting.
Patent CA-1332886-C (CA)
Title: Mousse product
Inventor: TANDY KAREN G
IPC: A23L21/10
Filed: 1989-08-21
Granted: 1994-11-08
Abstract: An instant mousse mix comprising a mixture of sugar, flavouring and from 5% to 40% by weight of Ca++DCS based on the total weight of the mix.
Patent CA-1331077-C (CA)
Inventor: JUDGE RONALD J
IPC: D01D1/06
Filed: 1989-08-23
Granted: 1994-08-02
Abstract: ABSTRACT OF THE INVENTION      An apparatus for spinning comprises a polymer inlet zone and a spinneret assembly.  A first metering pump for pumping a first set of molten polymer streams of equal flow rate to the polymer inlet zone and a second metering pump for pumping a second set of two molten polymer streams of equal flow rate to the polymer inlet zone are provided.  The second pump having twice the capacity of the first pump.  The spinneret assembly comprises a pair of spinnerets interchangeably locatable in the spinning pack.  One of the spinnerets is adapted to combine the first set of streams to produce three ends of filaments and the other of the spinnerets is adapted to combine each of the first streams with a respective one of the second streams to provide two ends of filaments.
Patent CA-1308332-C (CA)
Title: Combined alarm and back-flow prevention arrangement for fire suppression sprinkler system
Inventor: MCHUGH GEORGE J
IPC: F16K15/00
Filed: 1989-09-20
Granted: 1992-10-06
Abstract: ABSTRACT      An alarm valve and a backflow preventer are provided by a check valve and an alarm valve with a passageway provided between the check valve and the alarm valve preferably having a relief valve which selectively drains the passageway in response to the pressure in the main conduit upstream of the check valve.          An alarm is sounded when the alarm valve is open.  An impeller flow sensor or other detector may be provided in the backflow prevention device.
Patent DK-164382-C (DK)
Inventor: TEIJGELER HENDRIK
IPC: A01K31/16
Filed: 1986-10-09
Granted: 1992-11-09
Abstract: The installation has a frame made up of vertical posts (1) for attachment to a wall, and horizontal carrier arms (2) fixed to these, spread out and spaced vertically one above the other. Each of two carrier arms (2) arranged at the same level supports a box-shaped laying nest component (3), comprising several laying nests (4) arranged alongside one another in rows. Each laying nest component (3) has walls (5, 6, 7) which are preferably of wood. Box-shaped laying nest components (3), held one above the other on shelves in the frame (1, 2) can easily be removed from the frame (1, 2) for cleaning. Advantages are the more humane treatment of the fowl achieved by the design of the laying nests due to the closed-in walls, preferably of wood, and the consideration given to the hygienic necessity for easier dismantling of the installation in order to facilitate easy cleaning.
Patent FI-77018-C (FI)
Inventor: FOSTER BENNIE JOE
IPC: C07B57/00
Filed: 1981-11-12
Granted: 1989-01-10
Abstract: The (-)-enantiomer of the compound of formula (I): <CHEM> and its pharmaceutically-acceptable salts, are effective anti-depressant agents.
Patent FI-72700-C (FI)
Inventor: REIST WALTER
IPC: B65H29/66
Filed: 1983-05-30
Granted: 1987-07-10
Abstract: A guided endless, revolvingly driven traction element is equipped with controlled gripper units or grippers arranged in spaced relationship from each other. These gripper units are adapted to grip one margin of the paper products which constitutes a lateral marginal edge of the product as seen in the transport direction thereof. The gripper units have substantially planar clamping faces inclined at the same direction with respect to the traction element for stiffening that portion of the transported paper products which laterally project from the gripper units. The transported printed products thus have imparted thereto a corrugation or undulation extending transversely with respect to the transport direction which results in the desired stiffening of the products.
Patent FI-88183-C (FI)
Inventor: MUENCH RUDOLF
IPC: D21F7/06
Filed: 1989-02-10
Granted: 1993-04-13
Abstract: To achieve uniform and regular adjustment of a slice bar (1) within the limits of its elastic deformability, it is proposed that the slice bar (1) provided at the discharge gap of a headbox on a paper-making machine is capable of being moved by positioning elements (2) driven by servo-motors (5), the positioning elements being arranged at suitable intervals parallel to the slice bar (1) and connected to it so as to be able to apply a force to the connecting points (3) on the slice bar (1). It is possible to adjust each servo-motor (5) in a setting procedure to provide the currently-desired speed of thrust and the currently-desired length of stroke (6) for the positioning element (2) prior to the start up of the servo-motor (5). All the servo-motors (5) are started at the same time or, after the desired set-point position of the slice bar (1) has been reached, are switched off simultaneously. Electric stepping motors working in unison are particularly suitable for this purpose. The device and the setting procedure it offers are capable of being controlled and programmed by known electronic means. 
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Patent FI-92538-C (FI)
Inventor: PHILLIPS LARRY G
IPC: H04N5/45
Filed: 1989-06-12
Granted: 1994-11-25
Abstract: Upon receipt of an interlaced television signal, the field generator generates a first selector signal arbitrarily selecting one of the fields as top field and a second field selector signal selecting the other as bottom field. The received televsion signal is entered into memory under control of the field selector signals. A regenerated vertical synchronization signal is furnished for the first horizontal synchronization signal following vertical synchronization in top field. This regenerated vertical synchronization signal resets a counter which counts horizontal synchronization signals repetitively to a count of five. A second regenerated vertical synchronization signal is furnished when the count of five is reached following the vertical synchronization signal of bottom field. The counter is reset by each first regenerated vertical synchronization signal.
Patent FI-94046-C (FI)
Inventor: HAASE DIETER
IPC: C02F1/52
Filed: 1989-10-31
Granted: 1995-07-10
Abstract: A polynucleate aluminum hydroxy silicate-sulphate compound (PASS) having the following average composition: AlA(OH)B(SO4)C(SiOX)D(H2O)E  wherein  A is 1.0;  B ranges from 0.75 to 2.0;  C ranges from 0.30 to 1.12;  D ranges from 0.005 to 0.1; X is greater than 2.0 but less than or equal to 4.0 such that 3 = B + 2C + 2D (X-2); E is larger than 4 when the product is in aqueous form. The compound is useful for water treatment and other applications where an aluminum hydroxide gel system is required. The compound, in aqueous solution, has a long storage life.
Patent FI-92733-C (FI)
Inventor: NISKANEN JUHANI
IPC: F16C13/00
Filed: 1990-08-15
Granted: 1994-12-27
Abstract: The invention concerns a heatable variable crown roll, in particular a press roll or a calender roll (10) in a paper or board machine, comprising a hollow, tubular roll mantle (12), which is provided with heating means for heating of the roll mantle, said heating means comprising ducts (1;21), formed into the roll mantle (12), and electric resistors (2) fitted in said ducts (1;21) and connected to a voltage source, said roll being provided with a non-revolving roll axle (11) arranged inside the tubular roll mantle (12) and with crown variation means (14) acting upon the inner face of the roll mantle (12). The electric resistors (2) in said ducts (1;21) in the roll mantle (12) have been divided into zones (Z1, Z2, Z3, Z4) in the axial direction of the roll (10), and currents of different intensities are arranged to be fed into the different zones (Z1, Z2, Z3, Z4) to produce different heating effects in the different zones of the roll (10). <IMAGE>
Patent NO-137024-C (NO)
Inventor: GRAAT JOHANNES WILHELMUS
IPC: B01J19/14
Filed: 1973-08-14
Abstract: 1440476 Nitrogen-carbon dioxide gas mixture SMIT NIJMEGAN BV 21 Sept 1973 [22 Sept 1972] 44481/73 Heading C1A Inert gas mixtures (nitrogen/carbon dioxide as defined) are produced by burning a hydrocarboncontaining fuel with a substantially stoichiometric quantity of air, the reaction product being substantially cooled, the fuel for combustion being supplied at a substantially constant rate and the combustion products being continuously analysed in respect of a component thereof, a signal being generated in response to a change in the amount of said component in the gas from a preset value, the signal being used to adjust the flow of air for combustion at uniform intervals of time thus controlling the air/fuel ratio for combustion. The combustion air may be compressed or drawn in in the form of a main flow and a bypass flow. A scrubbing and/or cooling device may be provided on the output side of the combustion chamber.
Patent NO-166510-C (NO)
Inventor: PIANA IVANA
IPC: H01B7/36
Filed: 1984-10-25
Abstract: This open sleeve support is consisting of a central flat or slightly curved part (1), preferably of constant thickness, provided with two lateral branches (2) growing more narrow downwards, the latter being connected through a small fillet, to the two flat and parallel flanges (4) bent inwards and almost reaching the center of the sleeve, so that the support can be easily fitted on cables of various size (7) by slipping the sleeve on laterally, without risk of failure, while remaining firmly in place.