baber/WOPTO huggingface dataset:
Patent CA-2048349-A1 (CA)
Title: Amorphous nylon composition and films
Inventor: BEKELE SOLOMON
IPC: B32B7/02
Filed: 1991-08-02
Abstract: A multi-layer film useful in vacuum skin packaging and other packaging applications, and having a combination of good implosion resistance, formability and high oxygen barri-er characteristics, includes a core layer having an oxygen barrier material such as ethylene vinyl alcohol copolymer (EVOH) and a layer or layers comprising an amorphous nylon with or without a low flexural modulus polymeric material such as low modulus nylon (polyamide or copolyamide). Layers of ethylene vinyl acetate copolymer (EVA) or other olefin homopolymers or copolymers, polymeric adhesive layers, a heat-sealable layer, and a heat resistant layer are also disclosed. A composition of matter comprising a blend of an amorphous nylon and a low modulus polymeric material, espe-cially a low modulus nylon, is also disclosed.
Patent CA-2048407-A1 (CA)
Title: Gonadoliberin antagonists
Inventor: KONIG WOLFGANG
IPC: A61K38/00
Filed: 1991-08-02
Abstract: Peptides of the formula X - A - B - C - Ser - D - E - F - G - Pro - H in which X is alkanoyl, A is optionally substituted D-Nal(2), D-Phe or D-Trp, B is optionally substituted D-Phe, C is D-Pal(3) or optionally substituted D-Phe or D-Trp, and D is Tyr or His, E is D-Ser (R1), F is Leu, Trp or Phe, G is L-Ser(R1), H is Gly-NH2, D-Ala-NH2 or Azagly-NH2 and R1 is a glycosyl radical have an inhibitory effect on the formation of the gonadotropins lutropin and follitropin and thus also on the synthesis of testo-sterone and estrogen. A process for the preparation of these peptides is described.
Patent CA-2054765-A1 (CA)
Inventor: DENT PAUL W
IPC: H03D13/00
Filed: 1991-02-26
Abstract: An electrical circuit for producing a digital value which is representative of instantaneous phase of an electrical input signal relative to a reference frequency signal.  The circuit includes a digital counter for continuously generating a stored count representing a value resulting from dividing the reference frequency signal by a repeating count cycle frequency which is of the same order as an expected center frequency of the electrical input signal.  A trigger unit produces a trigger pulse in response to the trigger unit receiving a sampling pulse and a transition edge of the electrical input signal.  An intermediate register stores a momentary state of the counter circuit in response to receiving the trigger pulse.  The momentary state of the counter circuit corresponds to an instantaneous phase value of the electrical input signal.  A correcting circuit is provided for correcting a resulting numerical value in the intermediate register by removing an accumulating phase offset value.  An output register is provided for storing the corrected resulting numerical value of the counter circuit.
Patent CA-2059763-A1 (CA)
Title: Radial tire with rubber composition compatible with vehicle weight and engine power
Inventor: SAITO YUICHI
IPC: B60C1/00
Filed: 1992-01-21
Abstract: The present invention provides a radial tire with a tread rubber having the following relation between a viscoelasticity (tan .delta.) peak temperature (Tg) and .alpha. value; -50 < Tg < -20 ~~~~~(1) 10.7 .alpha. - 58 < Tg < 22.9 .alpha. - 48 ~(2) wherein Tg is obtained from a viscoelasticity (tan .delta.) temperature distribution curve that is determined using a viscoelastic spectrometer at a frequency of 10 Hz, an initial strain of 10%, an amplitude of ~ 0.250 and a temperature elevating rate of 2°C/min, and a is obtained from an equation represented by Engine output × 10~~~ (3) Body weight + 60 wherein the Engine output is a net value in ps units and the body weight is the weight of an empty car in Kg.
Patent CA-2060761-A1 (CA)
Title: Tether locked door mounted newspaper delivery box
IPC: A47G29/12
Filed: 1992-02-06
Abstract: A newspaper delivery box is provided for attachment to or placement outside the door of a house or apartment.  The box is provided with a hinged top having a one-way slot, a lock adapted to lock the lid to the main portion of the box and a tether adapted to secure the box to a door knob or the like behind the closed door.
Patent CA-2061701-A1 (CA)
Inventor: SCHULTZ ROGER L
IPC: E21B41/00
Filed: 1992-02-20
Abstract: A downhole electrical pawer supply apparatus has a high fluid pressure source zone and a low fluid pressure discharge zone each defined at least partially within the apparatus. A fluid powered engine provides rotational mechanical output and is powered by fluid flowing from the source zone through the engine to the discharge zone. An electrical powered generator converts the rotational mechanical output of the engine into electrical output.
Patent CA-2063019-A1 (CA)
Title: A process for production of an ether-rich additive
Inventor: MARQUEZ MARCO A
IPC: C07C41/06
Filed: 1992-03-13
Abstract: A process for the production of an ether-rich additive for gasoline, and more particularly, the production of TAME from light hydrocarbon streams comprising admixing the light hydrocarbon stream, preferably from an FCC feedstock, prior to distillation of the feedstock with an alcohol in a C5 feedstock and contacting the feedstock with a catalyst under etherification process conditions.
Patent CA-2064242-A1 (CA)
Title: Process for the treatment of a pigment suspended in water and method of manufacturing paper
Inventor: DESSAUER GUIDO
IPC: D21H17/69
Filed: 1991-05-08
Abstract: ABSTRACT OF THE DISCLOSURE      Pigments for the papermaking industry, in particular kaolin, are treated with a high molecular polymerizate that is solvated by means of carboxylate groups and belongs to an ethylenically unsaturated, radically polymerizable carboxylic acid as the binder.  By gradually adding an acidifying agent the binder is coacervated and totally precipitated on the pigment.  It is important that the quantity of the acidifying agent is limited in such a manner that the pigment retains negative surface charge and the coacervate still contains water.  With the pigment treated thus printing papers with increased pigment content and/or increased breaking strength can be manufactured.
Patent CA-2065207-A1 (CA)
Title: Ceramic band-stop filter
Inventor: TURUNEN AIMO
IPC: H01P/
Filed: 1992-04-06
Abstract: 1182-3 In order to provide a sufficient isolation between the resonators of a band-stop filter, prior art band-stop filters must be manufactured from separate ceramic resonator blocks. According to the invention the band-stop filter can be manufactured in a single ceramic block (1), having on one side surface strip-like areas (14; 15) of electrically conducting material extending perpendicularly from the bottom edge to the top edge and being located in the area between the resonators (A and B, B and C) and having dimensions selected so that they substantially cancel the electric and magnetic field between the resonators. If necessary, the coupling between the resonators can be adjusted by changing the width of the strip-like areas (14; 15) or by providing them with discontinuities.
Patent CA-2066071-A1 (CA)
Title: Variable displacement slant plate type compressor with improved dynamic bearings
Inventor: HIGUCHI TERUO
IPC: F04B27/18
Filed: 1992-04-15
Abstract: A slant plate compressor with a variable displacement mechanism including a driving mechanism having a drive shaft is disclosed. The compressor includes a compressor housing having a cylinder block. A plurality of peripherally located cylinders are formed through the cylinder block. A piston is slidably fitted in each of the cylinders and is reciprocated by the driving mechanism. An inner end of the drive shaft is rotatably supported in the cylinder block by bearing which is fixedly disposed within a central bore formed through the cylinder block. The bearing may be, for example, a radial ball bearing or a circular cone roller bearing both rearward and radial forces acting on the drive shaft are effectively received and compensated for by the bearing without providing an axial position adjusting element, such as, a washer having the various thicknesses for adjusting an axial position of the drive shaft.
Patent CA-2066548-A1 (CA)
Inventor: AUGE JACQUES
IPC: H04B10/293
Filed: 1992-04-21
Abstract: Telecommunications system with erbium-doped fibre optic amplifiers for transmitting signals, at least one of which has a wavelength of the order of 1550 nm, characterised in that: 
 
  - the said amplifiers have fibres whose cores are doped with erbium and with germanium and are devoid of aluminium, 
  - and, for each of the said amplifiers, the length of the said fibre and the pumping power which is injected into it are such that the noise generated by the said fibre is emitted essentially around 1550 nm. 
 
<??>As is apparent in the figure, the signal-to-noise ratio remains adequate after 10,000 km of propagation, with no intermediate filter. 
<IMAGE>
Patent CA-2066643-A1 (CA)
Title: Assay method for biological target complexes on the surface of a biosensor
Inventor: EBERSOLE RICHARD C
IPC: G01N33/553
Filed: 1990-09-25
Abstract: A biosensor detector method for detecting biological targets, using specific binding, or hybridization techniques coupled with enzymatic amplification and the mass sensing capability of a piezoelectric oscillator. An optical biosensor is also contemplated.
Patent CA-2066665-A1 (CA)
Inventor: PUDNEY RICHARD
IPC: B60R9/045
Filed: 1991-04-30
Abstract: An adjustable mounting for an article restraining cross bar of an automobile luggage rack is provided to interconnect the cross bar to a pair of stanchion members mounted for longitudinal movement along a pair of parallel side rails so that one stanchion may be longitudinally adjusted relative to the other stanchion. A pivot plug is provided which is secured to each end of the cross bar and includes an extending tongue portion having a slot therein. The stanchions each contain a socket adapted to receive the tongue portion of the pivot plug and a fastening screw extends through the socket and tongue slot to secure the plug within the socket while permitting limited inward and outward movement of the tongue within the socket and limited pivotal movement of the plug around the fastening screw disposed in the slot.
Patent CA-2067726-A1 (CA)
Title: Spherical roller for kneading a dough ball
Inventor: DECHRISTOPHER EUGENE L
IPC: A21C11/00
Filed: 1990-10-25
Abstract: There is shown a roller (10, 30, 40) for pressing and working a dough ball (D) into a pizza shell (P). In its preferred form, the roller (10, 30, 40) is in the form of a spherical cluster (30, 40) of balls (32, 46), which are molded or otherwise formed on a polygonal core (44). The spherical cluster (30, 40) is rotatably contained within a complementary spherical shell (14) carried on the lower end of a fluid duct (20). Olive oil or other material flowing through the duct (20) will flow ports (22, 24, 28) in the shell (14) to be carried by the cluster (30, 40) of balls (32, 46) and distributed over (14) the dough ball (D). Ports (24) in the side of the duct (20) allow the oil to flow around the shell (18) to drip directly onto the dough ball (D) near the outer edges thereof. A conical hood (18) round the cluster (30, 40) of balls (32, 46) and the carrier block and retain any olive oil vapors that otherwise may be inhaled by bakery workers.
Patent CA-2068059-A1 (CA)
Title: Procedure for disinfecting and cleaning contact lenses
Inventor: PERALES RONTOME CARLOS
IPC: C11D7/18
Filed: 1992-05-06
Abstract: The present invention relates to a procedure for cleaning and disinfecting contact lenses. This procedure is essentially characterized by the fact that it consists in submerging said lenses in a container together with a hydrogen peroxide and a tablet or other galenical form, producing from the beginning peroxide controlled unstabilization, in order to obtain its activation due to oxygen lability increase in the whole solution mass, with consequent increase of its germicide and cleaning effects, producing hydrogen peroxide degradation down to a level allowing the solution to be compatible with the eye.
Patent CA-2068160-A1 (CA)
Inventor: EL-HAMAMSY SAYED-AMR A
IPC: H05B41/28
Filed: 1992-05-07
Abstract: A passive, resonant starting circuit for an electrodeless HID lamp includes a starting coil that is shielded from stray capacitances that would otherwise result in detuning the resonant circuit and hence decreasing efficiency. The starting circuit further includes a capacitance coupled in series with the starting coil and another capacitance coupled in parallel with the coil. In a preferred embodiment, the starting coil is enclosed in a conductive cylindrical housing which functions as both a shield from external capacitances and the resonant capacitance in parallel with the starting coil. The housing has a lengthwise gap in order to prevent the housing from acting as a short circuit secondary with respect to the starting coil. A conductive disk is mounted to the ground end of the housing to increase shielding even further. The parallel resonant capacitance is determined by the length of the housing and the distance between the coil and the housing.
Patent CA-2074442-A1 (CA)
Title: Catalytic processes
Inventor: DAAGE MICHEL
IPC: C10G45/72
Filed: 1992-07-22
Abstract: ABSTRACT OF THE DISCLOSURE            The hydrotreating  of  petroleum feedstock  is  improved  by using a layered transition metal catalyst, a mixture of such  catalysts or a stacked  bed of  transition metal  catalysts that  has a  selected ratio of edge  to rim sites  sufficient to provide  a product having  a predetermined sulfur and nitrogen content.            In another aspect of the present invention, there is provid-ed a method for selecting a transition metal catalyst system for use in hydrotreating nitrogen and  sulfur containing feedstocks  to provide  a hydrotreated product having a predetermined nitrogen and sulfur content and at a predetermined reaction residence time, which method comprises: selecting the amount of sulfur and nitrogen to be removed from a  given feedstock by hydrotreating to obtain  a product having a  predetermined nitrogen and sulfur content; determining the variation in the  reaction kinetics for  sulfur and  nitrogen removal  of the  given feedstock  by hydrotreating with a transition metal  catalyst of varying edge to  rim ratios; selecting, for  a predetermined reaction  residence time,  that ratio from  the varying  edge to  rim ratios  of the  transition  metal catalyst that provides  the requisite  sulfur and  nitrogen removal  to provide the product of predetermined sulfur and nitrogen content.
Patent CA-2074983-A1 (CA)
Title: Methods for inhibiting metal corrosion in aqueous systems
Inventor: GEIGER GARY EDWIN
IPC: C23F11/14
Filed: 1992-07-30
Abstract: ABSTRACT         Methods are provided for inhibiting the corrosion of metals in certain aqueous systems.  The methods comprise adding an effective amount of an alkyl benzotriazole compound to the system for which corrosion inhibition is desired.
Patent CA-2075978-A1 (CA)
Inventor: FEATHERS LEONARD J
IPC: A62B35/04
Filed: 1991-12-19
Abstract: A fall-arrest safety anchorage has a safety line drum (10) and braking means as-sembled to a spine plate (1). The braking means comprises a rotatable brake component (2) and fixed brake components (1, 7) one of which is constituted by such spine plate. The rotatable brake component (2) constitutes the driven member of a centrifugal clutch comprising coupling elements (17) which are mounted on the drum and become centri-fuged into engagement with abutments (16) on said rotatable brake element if the un-winding speed of the drum exceeds a certain value. The rotation of the brake compo-nent (2) takes place against a frictional resistance imparted by friction rings (5, 6) which are sandwiched under pressure between that brake component and the fixed brake com-ponents (1, 7).
Patent CA-2076043-A1 (CA)
Title: Capteur solaire de toiture
Inventor: NELSON RICHARD
IPC: F24S90/00
Filed: 1991-02-14
Abstract: Un toit collecteur (20) d'énergie solaire comprend une plaque collectrice (72) pourvue d'une pluralité de conduits transparents dans lesquels s'écoule une mince couche d'eau qui sort d'un réservoir isolé (58) afin d'augmenter la température de l'eau contenue dans celui-ci par absorption de chaleur dans la plaque collectrice (72). Un condenseur par évaporation (74) qui comprend des conduits transparents dans lesquels circule l'air reçoit dans les conduit d'air l'eau préchauffée du réservoir isolé (58), qui se répand dans les conduits d'air de préférence sous forme d'une mince couche. Une partie de l'eau dans les conduits d'air s'évapore et l'air saturé de vapeur traverse un condenseur à tourbillon (68), ce qui entraîne la précipitation de l'eau et la génération d'énergie thermique. On peut utiliser l'énergie thermique pour entraîner une turbine à gaz (62) ou un autre type de dispositif de conversion d'énergie.
Patent CA-2079553-A1 (CA)
Title: Scratch game
Inventor: DESBIENS JEAN-PIERRE
IPC: A63F3/06
Filed: 1992-09-30
Abstract: ABSTRACT OF THE DISCLOSURE:            A scratch game is disclosed, which has a substrate on which is printed a first grid of randomly selected informations, such as numbers, each information of the first grid being printed in a separate box that forms part of this grid.  A scratchable rub-off coating is applied onto the first grid to hide the informations printed in at least some of the boxes of this first grid.   A second grid of selected informations, such as numbers identical to the numbers of the first grid, are printed on the rub-off coating.  Each information contained in the second grid is printed in a separate box that forms part of the second grid.  The boxes of the second grid are located exactly over the boxes of the first grid hidden by the rub-off coating and the informations that are contained in the second grid are correlated with the informations that are contained in the underlying boxes of the first grid.   Such a double grid combination is particularly useful  to mark the called numbers in a BINGO game.
Patent CA-2086881-A1 (CA)
Inventor: LIN CHING-CHIH
IPC: B01D46/26
Filed: 1993-01-07
Abstract: A turbo exhaust pipe 10 with exhaust gas and black smoke filters comprises mainly a casing 11, a chemical   filter 20,   a   turbine blade 23,  a smoke filter 25,  a  cleaning  element 29,  a  movable  member 31,  and  a  smoke  collector 17, characterized by the disposition of exhaust gas which is discharged to the casing 11 from the engine's exhaust  pipe through  an inlet 15 of the casing so that the exhaust  gas  flow drives    the  turbine  blade 23  to    rotate,    and consequently rotates  the spindle  19  and hence  smoke content in  the exhaust gas is filtered out by the smoke filter 25  and falls into the smoke collector 17 beneath the casing by  gravity, and the remaining exhaust gas is then  filtered by  the chemical filter 20 located at the back   section   of the   casing   to filter out carbon monoxide   and   nitride before   discharging   to the atmosphere to  minimize  air  pollution.
Patent CA-2087278-A1 (CA)
Title: Roofing shingle preform and methods of manufacturing and using the same
Inventor: HAGEMAN JOHN P
IPC: E04D5/00
Filed: 1993-01-14
Abstract: ROOFING SHINGLE PREFORM AND METHODS OF MANUFACTURING AND USING THE SAME            ABSTRACT OF THE DISCLOSURE          A roofing shingle preform which includes a strip of bitumen membrane having a plurality of spaced tabs formed of a bitumen membrane attached thereto. Preferably, the bitumen membrane is a modified bitumen membrane whyich includes a core of polyester having a layer of SBS or SEBS modified bitumen thereover.  In manufacture, the preform is preferably formed into a roll and, in fabricating a roof from the preform, the roll is unwound in succeeding courses to form the roof.
Patent CA-2089617-A1 (CA)
Title: Control circuit for automatically controlled feed forward nonlinear distortion compensation amplifier
Inventor: SAKAMOTO HIRONORI
IPC: H03F1/32
Filed: 1993-02-16
Abstract: A control circuit for an automatically controlled feed forward nonlinear distortion compensation amplifier.  The control circuit controls a distortion detection loop and a distortion removal loop.  The distortion detection loop is a loop for feeding forward input to a main amplifier into a first directional coupler.  The distortion removal loop is a loop for feeding forward distortion elements into a second directional coupler.  The main amplifier is preceded by a variable attenuator and a variable phase shifter.  A variable attenuator and a variable phase shifter are also located in a feed forward path to the second directional coupler.  The control circuit controls the variable attenuator and the variable phase shifter preceding the main amplifier for detecting the distortion elements.  The control circuit controls the variable attenuator and the variable phase shifter located in the feed forward path to the second directional coupler for removing the distortion elements.  A temperature compensation signal and an adjustment signal are added to a control signal by each adder provided at the output stage of the control circuit.
Patent CA-2090319-A1 (CA)
Title: Cabin, especially for a cross-country vehicle
Inventor: NYSTROEM STEN
IPC: E02F9/16
Filed: 1991-08-22
Abstract: A cabin intended primarily for cross-country vehicles and supported at the top thereof by a carrier frame (2) mounted on the vehicle. The cabin (1) is freely suspended from the carrier frame (2) by means of a carrier device (3) which is so located in relation to a vertical line which passes through the centre of gravity of the cabin (1) that the cabin will always be located essentially in the horizontal plane. The cabin is also connected to the carrier frame (2) by means of shock absorbers (5) which are spaced from the carrier device.
Patent CA-2091412-A1 (CA)
Title: Catalytic system and process for copolymerizing carbon monoxide with one or more olefins
Inventor: SOMMAZZI ANNA
IPC: C08G67/00
Filed: 1993-03-10
Abstract: "CATALYTIC SYSTEM AND PROCESS FOR COPOLYMERIZING CARBON MONOXIDE WITH ONE OR MORE OLEFINS"                       Abstract A catalyst active in the preparation of alternating olefin/carbon monoxide (CO) copolymers is constituted by: (a) at least one salt of a metal of Group IB of the Periodic System, (b) a mono or bidentate ligand base containing one or two nitrogen or phosphorus atoms capable of linking to the metal atom by means of dative bonds, (c) a mineral or organic oxidizer agent.      Also disclosed are the preparation of the catalyst and the use of said catalyst in alternated copolymerization of ethylene (C2) and/or other olefins with carbon monoxide (CO).
Patent CA-2092923-A1 (CA)
Title: Skate with aligned wheels, with improved fit
Inventor: SARTOR MARIANO
IPC: A63C17/04
Filed: 1992-07-20
Abstract: A skate with aligned wheels, with improved fit, including a support (2) for the sole (4) of a shell (5) inside which an innerboot can be arranged, whose peculiarity is that it has a band (7) which passes inside and transversely to the shell at the region overlying the user's heel. The band allows to achieve optimum fit by allowing to adjust the pressure which can be exerted at the user's heel.
Patent CA-2093608-A1 (CA)
Inventor: LUI NORBERT
IPC: C07C17/00
Filed: 1993-04-07
Abstract: Avoiding hexachlorobutadiene as the starting material, 2-chloro- and 2,3-dichloro-1,1,1,4,4,4-hexafluoro-2-butene are prepared by reacting a chlorobutene derivative of the formula (I) Cl2C=CH-X             (I) in which X    represents CCl=CCl2 or CCl2-CCl2H   with hydrogen fluoride and chlorine in the presence of a catalyst at temperatures in the range of 50 to 550°C.