baber/WOPTO huggingface dataset:
Patent CA-2013645-C (CA)
Inventor: ROBERT JEAN
IPC: F16H9/10
Filed: 1990-04-02
Granted: 1999-09-28
Abstract: In a variable speed transmission of the pulley type, one of the pulley cheeks is movable axially with respect to the other which is stationary. The movable cheek faces a reaction cup which is solid with the stationary cheek. The cup and the movable cheek are formed with converging cam surfaces which define between them a chamber into which are disposed centrifugal weights having ends sliding on the cam surfaces. When the pulley and reaction cup rotate, the weights are thrown outward and force the movable cheek toward the stationary one.     According to the invention, the cam surface of the reaction cup is concave, having a radius of curvature of predetermined length. On the other hand, the end edges of the centrifugal weights slidable on the cam surface of the reaction cup are convex and have a radius of curvature shorter than said predetermined length so that the ends of the weights bear only on a limited part of the cam surface of the reaction cup.
Patent CA-2019546-C (CA)
Title: Process for crystallization of polyethylene naphthalate
Inventor: DUH BEN
IPC: C08G63/78
Filed: 1990-06-21
Granted: 2001-07-17
Abstract: High molecular weight polyester resins are sometimes produced from low molecular weight polyester prepolymers having the same composition by solid state polymerization. Polyester prepolymers are generally converted from the amorphous state to the crystalline state prior to solid state polymerization in order to raise their sticking temperature. This is done to keep the polyester prepolymer from sticking together as a solid mass in the solid state polymerization reactor.      Such polyester prepolymers are traditionally crystallized by simply heating them to an elevated temperature at which crystallization occurs. However, polyethylene naphthalate prepolymer cannot be crystallized by utilizing this simply traditional approach. This inventions discloses a process for crystallizing amorphous polyethylene naphthalate prepolymer which comprises: (1) heating the amorphous polyethylene naphthalate prepolymer to a temperature which is within the range of about 80°C to about 140°C in the presence of a stream of an inert gas or under a vacuum to devolatilize the amorphous polyethylene naphthalate prepolymer; and (2) subsequently heating the devolatilized polyethylene naphthalate prepolymer to a temperature which is within the range of about 150°C to about 260°C while providing agitation to produce the crystallized polyethylene naphthalate prepolymer.
Patent CA-2021553-C (CA)
Inventor: MICHAUD GHISLAIN
IPC: B62K27/02
Filed: 1990-07-19
Granted: 2000-10-24
Abstract: Un sida-car pour motocyclette, caractérisé en ce que la caisse du sida-car surplombe la roue du sida-car directement au-dessus de celle-ci. Le raccord d'accouplement latéral du sida-car à la moto contraint la roue du sida-car à s'incliner à l'intérieur d'une courbe, avec les roues de la moto, lorsque le véhicule en mouvement emprunte une courbe sur une route. Le cadre et la caisse du sida-car s'inclinent avec la roue, de sorte que le centre de gravité du sida-car demeure continuellement dans le plan de sa roue. Au dur et à mesure que les roues de la moto s'inclinent, leur valeur angulaire A par rapport à la verticale augmentera par rapport à la valeur angulaire a représentant l'inclinaison de la roue du sida-car par rapport à la verticale.
Patent CA-2025312-C (CA)
Title: Method and device for generating and for validating a digital message and application of such a device
Inventor: PERIOU PIERRE
IPC: H04L9/12
Filed: 1990-09-13
Granted: 1995-11-14
Abstract: In this method,  a number N is assigned to transmitting  and  receiving  stations  comprising  syn-chronous clocks (2), the coded message being obtained by calculating a time Tie from the time elapsed since the initialization of the clock of the transmitting station, a code Ae1 from N and from Tie in accordance with a first relationship, a code Ae2 from Ae1 in accordance with a second relationship, and the coded message M from N, Tie and Ae2, in accordance with a third relationship. The validation operation is performed by calculating a time Tir1 from the time elapsed since the initialization of the clock of the receiving station, a code Ar1 from the received coded message M, from N and from Tir1, by using the third relationship, a code Ar2 from the n highest order bits of Ar1, n being the number of bits of Ae1, a code Ar3 from Ar2 in accordance with the second relation-ship, a time Tir2 from M, from N and from Ar3, by using the third relationship, and a code Ar4 from N and from Tir2 by using the first rela`tionship, and by verifying that Ar2 is equal to Ar4 and that the absolute value of the difference Tir2 - Tir1 is less than a specified threshold.
Patent CA-2028124-C (CA)
Inventor: HASEGAWA KENJI
IPC: B41J2/14
Filed: 1990-02-28
Granted: 1995-12-19
Abstract: There is provided a non-single crystalline material characterized by containing Ir, Ta and Al at the following respective composition rates: 28 atom percent ? Ir ? 90 atom percent, 5 atom percent ? Ta ? 65 atom percent, and 1 atom percent ? Al ? 45 atom percent.    There is also provided a member comprising a substrate and a film composed of said non-single crystalline material being disposed on said substrate.
Patent CA-2033404-C (CA)
Title: Solid catalyst components for olefin polymerization and processes for the polymerization of olefin using same
Inventor: KIOKA MAMORU
IPC: C08F10/02
Filed: 1990-12-28
Granted: 1995-09-05
Abstract: The present invention relates to solid catalyst components for olefin polymerization formed by prepolymerizing at least two types of .alpha.-olefin on an olefin polymerization catalyst comprising a solid titanium catalyst component, an organometallic compound catalyst component, and if necessary, an electron donor, to olefin polymerization catalyst comprising said soild catalyst component for olefin polymerization, an organometallic compound catalyst component, and if necessary, an electron donor, and to processes for olefin polymerization using said olefin polymerization catalyst.    According to the present invention, there can be manufactured olefin polymer particles having low adhesive among the polymer particles as well as good particle distribution and excellent granular properties even when they contain a large amount of an amorphous olefin polymer portion.
Patent CA-2034287-C (CA)
Title: Acoustic signal reproducing apparatus
Inventor: INANAGA KIYOFUMI
IPC: H04R5/033
Filed: 1991-01-16
Granted: 2001-06-12
Abstract: An acoustic signal reproducing apparatus for reproducing acoustic signals by headphone devices is disclosed. The left channel and right channel acoustic signals are provided by a device for processing the transmission characteristics with constant transmission characteristics from an imaginary sound source as far as both of the listener's ears. The left channel and right channel acoustic signals, processed in this manner by the device for processing the transmission characteristics, are provided by an acoustic signal processing device with a level difference and a time difference consistent with changes in orientation of the user's head. In this manner, optimum binaural reproduction with respect to the imaginary sound source may be achieved.
Patent CA-2035410-C (CA)
Inventor: KATAYAMA HIROYUKI
IPC: G11B7/26
Filed: 1991-01-31
Granted: 1997-09-30
Abstract: A surface of a magneto-optical recording medium is textured with fine physical protrusions and recessions. The shapes of the physical protrusions and recessions vary with radial location on the medium such that, for example, roughprotrusions and recessions are formed in inner parts of the recording medium andfine protrusions and recessions are formed in outer parts thereof. Therefore, a floating force provided in the outer parts to a floating head by the medium being rotated through an air layer using the constant-angular-velocity method is equal to a floating force provided in the inner parts. Consequently, since the floating height of the floating head becomes constant irrespective of radial location on the medium, information can be recorded under constant recording conditions, permitting the accuracy of the recording to be improved. In a method for processing the surfaceof a magneto-optical recording medium relating to the present invention, a texture tape with large roughness is used in inner parts of the medium while a texture tape with small roughness is used in outer parts thereof. As a result, a magneto-optical recording medium having the above characteristics is produced.
Patent CA-2035533-C (CA)
Title: Method and an apparatus for separatring gas from a suspension containing gas
Inventor: LEHTINEN JOUNI
IPC: D21D5/26
Filed: 1991-02-01
Granted: 1999-02-23
Abstract: A method of and an apparatus for separating gas from a gas-containing suspension, generally a liquid medium, which may contain solid material, such as fibers in the pulp and paper industry. At least a portion of the suspension is first subjected to the centrifugal action of a centrifugal pump and then to further centrifugal separation of a centrifugal separator so as to divide the suspension at least once into two fractions, of which the heavier fraction containing less gas is discharged from the apparatus and the lighter fraction containing more gas is returned back to the suction side of the centrifugal pump. The apparatus is characterized in that the casing of the centrifugal pump is connected to a centrifugal separator for dividing the suspension into two fractions, the separator having a conduit for the discharge of the heavier fraction from the separator and a conduit for returning the lighter fraction to a channel leading to the suction side of the pump.
Patent CA-2037746-C (CA)
Inventor: DE FRANK MICHAEL P
IPC: G01K1/08
Filed: 1991-03-07
Granted: 1995-12-26
Abstract: The protective apparatus for a biomedical thermometer having a protruding probe containing a waveguide includes mounting a transparent window at the patient end of the waveguide to seal the waveguide from contamination while permitting infrared energy to pass. A protective sleeve protects and mounts the transparent window to the waveguide and material is provided along the entire probe-length of the waveguide to protect it. An outer boot is mounted over the transparent window and waveguide protection material to provide further protection and to supply a mounting and retaining surface for a protective probe cover. A disposable protective probe cover having a generally thin, flat, frame member with an aperture therethrough, is sized to fit over and be retained over the base of the probe. Extending across the aperture of the probe cover frame member is a material which stretches to generally conform to the shape of the probe when the tip of the probe is inserted through the aperture of the frame. A probe cover sensor is provided to indicate the existence of a protective probe cover.
Patent CA-2038568-C (CA)
Title: Atm cell broadcasting system
Inventor: KAKUMA SATOSHI
IPC: H04L45/16
Filed: 1991-03-19
Granted: 1997-10-07
Abstract: A feature of this invention resides in an ATM          (asynchronous transfer mode) cell broadcasting system used in ATM switches comprising switch matrices for exchanging ATM cells inputted from a plurality of input highways and outputting them to a plurality of output highways.    The ATM cell broadcasting system comprises: either tag information adders,  provided at respective input terminals of the switch matrices, for adding tag information according to respective identifiers assigned to the ATM cells; or ATM-cell-switching  identifier  determinant memories, provided for respective switch elements in the switch matrixes, for storing determinant data enabling the switch elements to determine, from the identifiers of the ATM cells, which ones of the ATM cells to switch and output to their output highways.
Patent CA-2038843-C (CA)
Title: Apparatus and methods for performing an application-defined operation ondata as part of a system-defined operation on the data
Inventor: ANDRADE JUAN MANUEL
IPC: G06F15/16
Filed: 1991-03-22
Granted: 1998-05-19
Abstract: Apparatus and method for performing an application-defined operation on data as part of a system-defined operation on the data. The apparatus and method are embodied in a distributed transaction processing system in which processes running on component systems which may be heterogeneous interact according to the client-server model. In the apparatus and method, a type is associated with the data and application-defined operations which are part of certain system-definedoperations are defined for each type. The system-defined operations which the application-defined operations are part of include allocation, reallocation, anddeallocation of buffers and sending buffers between clients and servers using remote procedure calls. In the allocation and reallocation operations, the application-defined operation is initialization; in the deallocation operation, it is uninitialization. In buffer sending, the application-defined operations include operations done on the buffer contents before sending, routing, encoding the buffer contents into a transfer syntax, operations done on the buffer contents after sending, decoding the buffer contents from the transfer syntax after receiving, and operations done on the buffer contents after receiving. Data structures in the processes associate the data and its type and a type and its application-defined operations. Servers employ a shared bulletin board data structure to indicate the types they accept.
Patent CA-2043757-C (CA)
Title: Glass-ceramic li-al-si-o composition and process for its production
Inventor: LARNAC GUY
IPC: C03C10/00
Filed: 1991-06-03
Granted: 1996-10-22
Abstract: In the process according to the invention, a gel is prepared by hydrolysis and polycondensation of  precursor  compounds  which  comprise  at  least silicon  alcoholate  and  aluminum  alcoholate  and inorganic compounds of lithium and/or magnesium, the solvent  is  removed,   and  the  gel  obtained  is subjected  to   a  heat   treatment   resulting   in dehydration and oxidation,  then to compacting and ceramisization.   The   composition   obtained   is substantially   in   the   form  of   solid   ceramic solutions,  such  as  .beta.-spodumene,   cordierite  and mullite.
Patent CA-2043769-C (CA)
Title: Locking ring binder
Inventor: GILLUM STEVEN
IPC: B42F13/22
Filed: 1991-06-03
Granted: 2001-08-28
Abstract: A locking ring binder assembly has a resilient sheet metal cover and a pair of operating levers rotatably mounted on the covers. A detent consisting of a projection on the inside of the cover and a corresponding projection on the operating levers locks the binder in a closed position even though the operating levers are not rotated to an over center position.
Patent CA-2045438-C (CA)
Title: Control device for robot in inertial coordinate system
Inventor: IOI KIYOSHI
IPC: B25J9/18
Filed: 1991-06-25
Granted: 1996-10-08
Abstract: The present invention discloses a control device whereby a  means  for   detecting   a    velocity or an acceleration is provided in a main robot body, a velocity or acceleration expressed in a robot coordinate system is detected from the detection means, and an output from the detection   means   is added  to a desired value that is expressed in an absolute  coordinate  system that is an inertial reference frame of an arm of the robot.  In this way, the robot  arm can  be  made to follow any desired path, by   using   desired  positions  in  the absolute coordinate system that is an inertial coordinate system.
Patent CA-2045712-C (CA)
Inventor: ZAFIROGLU DIMITRI PETER
IPC: D03D15/56
Filed: 1991-06-26
Granted: 2001-02-27
Abstract: An improved process is provided for making stitchbonded elastic fabrics more economically. The improvements involve stitching with an elastic thread having a high residual stretch, overfeeding fibrous web to the stitchbonding machine and removing the resultant product under low tension.
Patent CA-2046784-C (CA)
Title: Method for producing molded article of thermoplastic resin
Inventor: HARA TAKAHISA
IPC: B29C45/14
Filed: 1991-07-11
Granted: 2005-04-26
Abstract: The present invention provides a molded article of a thermoplastic resin with good appearance which may have a skin material. The article is produced by providing upper and lower molds having a product part-molding section and a non-product part-molding section, supplying a melt of a thermoplastic resin in a cavity of the molds or a space between the skin material and either one of the upper and lower molds through a resin melt passage which is formed in a wall of one of the molds and has an opening for supplying the melt in the non-product part-molding section when a clearance of the cavity is larger than a thickness of a finally produced article. The molds are then closed to effect press molding and the molds are then cooled.
Patent CA-2048578-C (CA)
Title: Control for electronic image processing systems
Inventor: ALLEN IRENE M
IPC: G06F9/46
Filed: 1991-08-07
Granted: 2000-11-28
Abstract: A realtime control process for an electronic reprographic system in which background and job requests are dynamically partitioned into unique combinations of virtual machines for carrying out each request, with each virtual machine having certain system services to carry out the function provided by the virtual machine.
Patent CA-2049870-C (CA)
Title: System for expelling volatile impurities from groundwater
Inventor: BERNHARDT BRUNO
IPC: B09B3/00
Filed: 1991-08-26
Granted: 1994-11-01
Abstract: A system for expelling volatile impurities from groundwater and from the area of ground through which such groundwater flows, by the generation of a partial vacuum in a shaft of small diameter and by the introduction of air or other gases through a nozzle body into the groundwater within the shaft.
Patent CA-2051703-C (CA)
Title: Apparatus and method for the detection of air in fluid delivery systems
Inventor: FRANK JEFFREY LYNN
IPC: A61M5/36
Filed: 1991-02-18
Granted: 1997-10-14
Abstract: An infusion device includes an infusion pump (16) for delivering a liquid through an infusion conduit (12) from 8 separate source of the liquid into a patient, a bubble detector (17) for detecting the presence of an air bubble in the infusion conduit, and control circuitry (22) responsive to the bubble detector for determining if the size of the air bubble is unacceptable. The control circuitry is configured to determine if during the time the air bubble is detected it advances a distance indicative of the unacceptable size, one embodiment counting the steps of a linear perisaltic infusion pump for that purpose.
Patent CA-2052323-C (CA)
Title: Oligosaccharide conjugate vaccines
Inventor: PORRO MASSIMO
IPC: A61K47/48
Filed: 1991-09-26
Granted: 2001-04-17
Abstract: The present invention relates to an improved method for producing oligosaccharide conjugate vaccines. Tn an additional aspect of the invention, oligosaccharide vaccines are produced which elicit a monospecific and homogeneous immune response to capsular polysaccharide. A specific embodiment of the invention provides for vaccines which induce immunity to prevalent serotypes of streptococcus pneumoniae.
Patent CA-2056870-C (CA)
Title: Sodium tripolyphosphate composition and method of producing it
Inventor: HENSLER PAUL LEONARD
IPC: C11D11/00
Filed: 1991-12-03
Granted: 1996-03-19
Abstract: A granular STPP suitable for detergent compositions which is non-caking in non-agitated water is produced by wetting anhydrous phase II STPP granules and drying the granules to remove free water.  The resulting granules, when incorporated in detergent compositions, form a free flowing detergent slurry in detergent dispensing sys-tems.
Patent CA-2062477-C (CA)
Inventor: CHAGNOT CATHERINE J
IPC: F24F3/14
Filed: 1992-03-06
Granted: 2003-09-16
Abstract: A heat recovery ventilator having a rotary wheel heat exchanger included a unique configuration for driving both the rotary wheel heat exchanger and impellers to provide an inexpensive, compact and light-weight ventilator unit adaptable for use across a wide range of residential, commercial and industrial applications. A random matrix media is also used to provide high thermal efficiency in exchanging heat and moisture between inlet and exhaust air streams.
Patent CA-2063598-C (CA)
Title: Slimming pharmaceutical composition
Inventor: ASTRUP ARNE
IPC: A61P3/04
Filed: 1990-04-20
Granted: 1997-12-09
Abstract: A pharmaceutical composition for treatment of overweight and obesity or complica tions thereof, the composition comprising a combination of an adrenerg .beta. agonist and .alpha. xanthine, e.g. a combina tion of ephedrine and caffeine, in a weight ratio from about 1:8 to about 1:24, calculated (when the .beta. agonist is not L-ephedrine) on the isothermogenic amount of L-epherdrine and (when the xanthine is not caffeine) on the isothermogenic amount of caffeine to obtain a supraadditive thermogenic effect in the body after oral, rectal, nasal or parenteral administration. The composition can furthermore be used in a domestic animal with the purpose of improving the body content of meat at the expense of the body con tent of fat.
Patent CA-2064157-C (CA)
Title: Sprayable agricultural compositions
Inventor: CHAMBERLAIN PETER
IPC: A01N25/10
Filed: 1992-03-26
Granted: 2001-06-12
Abstract: The systemic activity of systemic active ingredients in sprayed foliar systemic compositions is improved by incorporating water soluble polymer. The polymer can have a molecular weight sufficiently low that its presence does not substantially affect the spray pattern of the composition and such that the polymer can initially be supplied as an aqueous solution having 1 to 25% concentration. When the active ingredient is water soluble, for instance glyphosate or chlormequat, a concentrate can comprise an aqueous solution of the active ingredient and the polymer.
Patent CA-2065537-C (CA)
Inventor: KAMEZAKI HIROSHI
IPC: H01L21/48
Filed: 1992-04-07
Granted: 1996-04-09
Abstract: A process for manufacturing a multi-layer glass ceramic substrate which comprises the steps of forming green sheets containing ceramic powders and glass powders as main ingredients, laminating the green sheets, and firing the laminated green sheets to form a multi-layer glass ceramic substrate, wherein at least one green sheet contains porous glass powders/as a part of the glass powders, is provided to control the shrinkage of the green sheets and prevent cracks or delamination.  The preferred process comprises the steps of forming a signal layer by i) forming first green sheets containing ceramic powders, glass powders, hollow glass spheres and porous glass powders as main ingredients, ii) forming an interconnection layer on each of the first green sheets, and iii) laminating the first green sheets with the interconnection layer; sandwiching the signal layer between upper and lower green sheets containing ceramic powders and glass powders as main ingredients; and firing the sandwiched signal layer to form the multi-layer glass ceramic substrate.
Patent CA-2065906-C (CA)
Title: Absorbable composition
Inventor: KENNEDY JOHN
IPC: A61L17/12
Filed: 1992-04-13
Granted: 2003-07-08
Abstract: The invention relates to a block copolymer which comprises a proportion of units having the formula:      as one of the blocks, and another of the blocks comprising a proportion of units having the formula:      and a proportion of units having the formula:      the units of formula (II) and formula (III) being randomly combined.
Patent CA-2068222-C (CA)
Inventor: HUGHES-JONES NEVIN CAMPBELL
IPC: A61K38/00
Filed: 1990-11-13
Granted: 1999-05-11
Abstract: La présente invention décrit des séquences d'ADN encodant des régions, déterminant la complémentarité, de domaines variables d'anticorps humains anti-RhD, et leur emploi dans la production de molécules d'anticorps chimériques de recombinaison.