baber/WOPTO huggingface dataset:
Patent CA-2064597-C (CA)
Title: Barrier fabrics and methods of making same
Inventor: TAYLOR JEFFREY L
IPC: A61B46/00
Filed: 1992-04-01
Granted: 2005-09-27
Abstract: A liquid impermeable barrier fabric which resists penetration of liquids under finite hydraulic heads and maintains that capable after upwards of 75 institutional washing/sterilization cycles. The barrier fabric is structurally characterized by a silicone membrane attached to a fabric substrate. The substrate is a tightly woven fabric which is constructed of polyester yarns.   Attachment of the membrane to the fabric substrate by a bonding mechanism in which the silicone material is in intimate contact with a substantial portion of the looped portions of the yarn, which define the surface of the fabric. This bonding mechanism also includes hydrophilicity of the yarn surfaces with which the silicone is in intimate contact. The fabric is treated with a hydrophilic finish to provide this aspect of the bonding mechanism. This barrier fabric is provided through the use of coating/calendaring apparatus. A film of highly viscous, uncured silicone is formed with a Mooney viscosity of 45 and then pressed between rollers, into a fabric web; to attain the referenced intimate contact.  The silicone is then cured.
Patent CA-2065911-C (CA)
Inventor: SPENCER CHARLES P
IPC: B61F5/14
Filed: 1992-04-13
Granted: 1994-12-06
Abstract: A constant contact side bearing for railcar trucks utilizes wedges or rollers to adjustably separate opposing and converging surfaces of a base member and a vertically biased cap member.
Patent CA-2068132-C (CA)
Inventor: LOGOTHETIS ELEFTHERIOS MILTIAD
IPC: G01N27/407
Filed: 1992-05-07
Granted: 2004-07-20
Abstract: An apparatus and a method for sensing hydrocarbons and carbon monoxide in a measurement gas, e.g., the exhaust gas from an automobile engine. A solid state electrochemical oxygen pumping cell adds oxygen into the apparatus which contains a solid state combustibles sensor for sensing the hydrocarbons and carbon monoxide. The oxygen may be obtained from ambient air or by dissociation of gasses like water present in the measurement gas.
Patent CA-2075881-C (CA)
Title: Transmission systems for the polarisation-independent transmission of signals
Inventor: VAN DEVENTER MATTIJS OSKAR
IPC: H04B10/135
Filed: 1992-08-12
Granted: 1996-10-29
Abstract: Transmission system for the polarisation-insensitive transmission of signals over a signal route (ST) between a first system connection point (S1) for a transmitter (T) and a second system connection point (S3) for a receiver (R), and between two further system connection points (S2 and S4) for an additional transmitter and a receiver. On one side the high-order retarder (HR) is disposed between the system connection points and the signal route (ST). The system comprises a first and a second hybrid circuit (H1, H2) each provided with two unidirectional connection points and a bidirectional connection point. The unidirectional connection points form the system connection points (S1 to S4 inclusive). The bidirectional connection point of one of the hybrid circuit (H1) is connected via the high-order retarder (HR), and the bidirectional connection point of the other hybrid circuit (H2) is connected directly, to the signal route (ST).            (Figure 7) fig- 7
Patent CA-2082416-C (CA)
Inventor: KRUMBERG YAKOV
IPC: G03G5/04
Filed: 1990-05-08
Granted: 2000-04-11
Abstract: L'invention se rapporte à un photoconducteur organique comprenant une couche de base formée d'un premier matériau et une couche photoconductrice formée d'un second matériau. Ce photoconducteur organique se caractérise en ce qu'il est maintenu selon une orientation incurvée avec la couche photoconductrice faisant face à l'extérieur, cette couche photoconductrice étant soumise à moins de contrainte que la couche de base. Dans un premier mode de réalisation, le premier matériau est relativement plus flexible et plus étirable que le second matériau et ces deux matériaux sont précontraints dans des directions opposées. Dans un second mode de réalisation, le premier matériau est relativement flexible et étirable et le second matériau est constitué par un matériau initialement moins flexible et moins étirable, qui a été soumis à un traitement chimique destiné à augmenter son étirabilité et sa flexibilité.
Patent CA-2084525-C (CA)
Inventor: SAMSON GENE
IPC: A61M39/00
Filed: 1992-01-28
Granted: 1995-08-08
Abstract: A single lumen valved balloon catheter assembly is disclosed that consists of a single lumen catheter tube (18) that has a distally located integral balloon (42) and a built-in guidewire (16) that has a distal valve member (54) that may be moved axially to engage and block the distal end of the catheter. The diameter of the guidewire is reduced at its distal end and the diameter of the lumen of the catheter tube distally of the balloon is reduced to below that of the proximal diameter of the balloon so that the axial movement of the guidewire distally is limited.
Patent CA-2086641-C (CA)
Title: Method and apparatus for detecting stator faults in rotary dynamoelectric machines
Inventor: PENMAN JAMES
IPC: G01R31/34
Filed: 1993-01-04
Granted: 1997-11-04
Abstract: In order to determine the occurrence of a stator fault in an induction motor during operation of the motor, the axial leakage flux is monitored during operation of the motor.  The occurrence of a stator fault is detected by observing a change in selected harmonic components of the axial leakage.  The angular position of the fault with respect to a datum position is determined by noting and recording changes in the axial leakage flux at a plurality of positions distributed symmetrically around the axis of the motor and computing the angular position by triangulation.  The axial leakage flux is detected by individual search coils located at said plurality of positions.
Patent CA-2087885-C (CA)
Title: Halftone image device and its driving circuit
Inventor: SHIBUYA AKIRA
IPC: H04N1/40
Filed: 1993-01-22
Granted: 2003-10-28
Abstract: The invention makes it possible to drive a halftone image device and achieve high halftone reproduction by allowing at least one of the leading and trailing edges of a pulse width-modulated signal applied to a recording head, or forming amplitude- and width-modulated pulses, respectively, as driving pulses for placing one dot under halftone control, and changing a pulse width change of pulse width modulation in a stepwise manner, using the pulse width of the amplitude-modulated pulse as a unit pulse width.      The invention intends to achieve high-voltage and high-speed pulse output and low power consumption by converting input data such as halftone image data to a voltage signal, superposing pulse voltages of opposite polarities and applying the resulting signal to a switching circuit constituting an output state in the form of a switching signal, and also makes it possible to achieve high speed and high-voltage driving by connecting at least one of equivalent two-terminal elements in series to at least one of the respective driving elements of a complementary FET driving circuit, said equivalent two-terminal elements are each put on with a current of a certain or higher value passing therethrough to show constant-voltage characteristics and put off with a current of a certain or lower value passing therethrough to become a constant resistance.
Patent CA-2089130-C (CA)
Title: Anti-web adhering contour surface for a photographic processing apparatus
Inventor: BARTELL ROGER EDWIN
IPC: G03D3/13
Filed: 1993-02-09
Granted: 2003-11-11
Abstract: Textured surfaces on respective walls of racks and tanks of photographic processing apparatus reduce the frictional forces between the photosensitive material leading edge surfaces and the walls of the racks and tanks. The processing solution flows through fissures in the textured surfaces, thereby providing a solution bearing layer between the photosensitive material and the textured surfaces. This allows a greater photosensitive material leading edge impact angle with the textured walls which allows the photosensitive material to change direction unimpeded.
Patent CA-2089929-C (CA)
Title: Railway drawbar with fabricated section
Inventor: HAWTHORNE V TERREY
IPC: B61G5/02
Filed: 1993-02-19
Granted: 1999-01-19
Abstract: A railway car with a slackless drawbar arrangement for unit trainservice and the like is provided and includes a drawbar having a section which is fabricated.  The fabricated intermediate section is cut from a section of seamless pipe or tubing or can be fabricated from plate, while the coupling end pieces attached to each end of the shank are cast members made from typical casting methods.  The coupling end pieces can be cast into standard fixed or rotatable drawbar ends or even be a combination thereof with rotational capability.  The geometric shape of the intermediate section is varied, depending upon the application, so that resistance to torsional or bending loads is maximized.  The fabricated shank portion is hollow, as well as part of the body of the coupling end pieces, thereby reducing the railcar's weight and costs to manufacture.
Patent CA-2094884-C (CA)
Title: Cementing apparatus
Inventor: COONE MALCOLM G
IPC: E21B21/10
Filed: 1993-04-26
Granted: 1994-07-12
Abstract: CEMENTING APPARATUS                        ABSTRACT      There is disclosed an assembly of parts for use in cementing a casing string in a well bore comprising a float collar connectible as part of the string, a cement plug lowerable onto the collar, and a wiper plug lowerable onto the cement plug, the lower end of the cement plug having threads for limited make-up with threads on the upper end of the collar and the lower end of the wiper plug having threads for limited make-up with the cement plug, so as to limit rotation between them.
Patent CA-2097110-C (CA)
Inventor: MARZOLA ROBERTO
IPC: C08K5/22
Filed: 1993-05-27
Granted: 1998-12-08
Abstract: Disclosed are functionalized polyolefins prepared by mixing a polyolefin with a concentrate and extruding the resulting blend,  wherein said concentrate is in the form of olefin polymer  particles  coated  with  a  mixture  of  additives comprising:          A)   from 0.05 to 30% by weight, based on the total weight of the concentrate, of one or more nonpolymerizable polar vinyl monomers;          B)   from 0.05 to 30% in moles, with respect to (A), of a free radical generating initiator which is not active at temperatures lower than or equal to 70°C, and optionally, C)   from 0.1 to 5% by weight, based on the total weight of the concentrate, of a coating substance.
Patent CA-2098695-C (CA)
Title: Process for recovery of free aluminum from aluminum dross or aluminum scrap using plasma energy with oxygen second stage treatment
Inventor: LINDSAY RICHARD D
IPC: C22B4/00
Filed: 1993-06-17
Granted: 2004-10-19
Abstract: A process for recovering free aluminum and aluminum compounds such as aluminum oxide from aluminum dross and aluminum scrap in a furnace heated with a plasma arc torch followed by oxygen injection after significant aluminum separation has occurred is described. The injected oxygen reacts with aluminum nitrides and unrecoverable aluminum in the dross to provide processing energy. High aluminum recovery is obtained with greatly reduced cycle times at lower overall operating costs.
Patent CA-2101255-C (CA)
Title: Self-loading, controlled deflection roll
Inventor: BROWN DALE A
IPC: D21C1/02
Filed: 1992-01-29
Granted: 1996-12-03
Abstract: A self-loading, controlled deflection roll (10) for forming a pressure nip (N) with another roll (34) has at least one support shoe (24, 26), and preferably two opposed support shoes, mounted in a stationary support shaft (16) for controlling the deflection of the roll shell (18) in the direction of the nip (N). At either end of the controlled deflection roll (10), a pair of opposed guide shoes (44, 82) are pivotally disposed on the stationary support shaft (16) to apply pressure against the roll shell (18) to stabilize the position of the roll shell (18) relative to the stationary shaft (16). At least one guide shoe (44, 82) at either end of the roll (10) is equipped with a compensating piston to permit its face surface to move radially outwardly relative to the guide shoe support on the stationary shaft (16). Also, at least one of the guide shoes (44, 82) at either end of the roll (10) is pivotally supported on the stationary shaft (16) to allow rotational movement of its guide shoe about an axis in a plane substantially parallel with a nip plane (NP) through the nip (N) and the longitudinal axis of the roll. The guide shoes (44, 82) provide equal stabilization forces at substantially right angles to the plane of the nip regardless of the relative translational position of the roll shell (18) disposed about the stationary shaft (16).
Patent CA-2102074-C (CA)
Inventor: UETA KOSAKU
IPC: F16J15/08
Filed: 1993-10-29
Granted: 2000-02-01
Abstract: The present invention relates to a metallic gasket comprising two elastic metal base plates and a thinner subplate disposed between inner sides of the base plates.      At least two cylinder bore holes are perforated in each of the base plates and subplates and a bead protrudes outwardly from each base plate at the periphery of each cylinder bore hole by way of a flat area. A linear bead joining the beads for both of the adjacent cylinder bore holes is formed between the adjacent. cylinder bore holes.      The subplate comprises an essentially circular circumferential edge portion present only at the periphery of each of the cylinder bore holes and a continuous portion between adjacent cylinder bore holes. The subplate is secured to the circumference at the inner side of one of the base plates at a portion of the flat area of the base plate near the cylinder bore hole. The outer circumferential end, at the peripheral edge of the subplate, is made varied within the bead width of the base plate and a linear bead that can be contained within the linear base plate bead is formed only in the continuous portion of the subplate.
Patent CA-2103687-C (CA)
Inventor: LERNER BERNARD
IPC: B65B51/30
Filed: 1993-08-06
Granted: 1999-02-16
Abstract: ABSTRACT   A jam prevention device comprises a light beam source that emits a light beam and is located on a main frame structure of a packaging machine in the machine's sealing section. During operation, the light beam is reflected off tworeflective surfaces located on a moveable support operably connected to a prime mover. The reflected beam is received by a receiver located opposite the source.A clamping sub-assembly includes a seal bar and a reciprocatable seal pad housing. The housing is spring-mounted on the clamping sub-assembly and substantially surrounds the seal bar. The reflective devices are mounted on the housing. The prime mover moves the clamping sub-assembly towards a heater bar sub-assembly. The housing defines two cavities for receiving the reflective devices. The movement of the clamping sub-assembly brings a loaded bag into contact with the heater bar sub-assembly for the purpose of effectuating a seal of the bag. The pressure applied by the clamping sub-assembly during the meeting of the clampingsub-assembly and the heater bar sub-assembly causes the housing to move during the sealing process thereby moving the reflective devices into the cavities and disrupting the light beam. A photo-sensor is provided for detecting the reflection of the light beam during the sealing process as just described. Control structure either allows or disallows the sealing process to continue based upon detection of the light beam.
Patent CA-2104279-C (CA)
Title: Balance vent for an internally vented float bowl carburetor
Inventor: DITTER STEPHEN D
IPC: F02M1/16
Filed: 1993-08-17
Granted: 1999-10-19
Abstract: A balance vent for an internally vented float fuel bowl type carburetor in order to dampen pulse signal fluctuation to the internal vent that is created upon an excess vacuum buildup in the float bowl. The balance vent is a restricted passageway that communicates at one end with the internal vent circuitry and at its opposite end with the atmosphere external of the carburetor. The balance vent is sued so that the vacuum in the fuel bowl is bled off to the atmosphere only to a certain extent to permit an overall bowl vacuum to remain so that the characteristics of the internal bowl vent are maintained.
Patent CA-2113382-C (CA)
Inventor: ATTAL DENIS
IPC: G06F13/00
Filed: 1994-01-13
Granted: 1998-07-07
Abstract: Ce procédé d'administration d'une ressource informatique par un quelconque système d'administration (MAN) autorise la gestion d'une quelconque application (APP) dont la table des symboles (ST) est contenue dans l'exécutable. Pour ce faire, un agent (AGE) est créé en conformité avec le protocole administratif standard (SNMP), cet agent étant paramétrable au moyen du fichier de configuration (CF) qu'il contient. Une fois créé, l'agent (AGE), par l'intermédiaire d'une part de la table des symboles (ST) donnant la correspondance entre le nom d'une variable et son implantation en mémoire et d'autre part d'un appel d'une fonction système (SC) du type processus d'analyse, accède directement à la zone mémoire dont l'implantation est donnée par la table des symboles (ST) pour permettre le traitement adéquat fonction des requêtes du système d'administration (MAN).
Patent CA-2118879-C (CA)
Inventor: MORGAN DENNIS R
IPC: G06F17/14
Filed: 1994-03-11
Granted: 1997-09-23
Abstract: A subband adaptive filter is disclosed that retains the computational and convergence speed advantages of subband processing while eliminating delay in the signal path. The technique has applications in active noise control where delay seriously limits cancellation performance and in acoustic echo cancellation where transmission delay specifications may limit the use of conventional subband designs. A reference signal and a residual error signal are each decomposed into a plurality of subband signals, and a set of adaptive weighting coefficients is generated for each of these subbands by a conventional complex LMS (least-means-squared) technique. These sets of subband weighting coefficients are then transformed into the frequency domain, appropriately stacked and inverse transformed back into the time domain to obtain wideband filter coefficients for a programmable filter. The reference signal, which is correlated with the disturbance signal to be eliminated, is filtered by this programmable filter to produce a disturbance estimate signal which may be subtracted from the signal containing the disturbance.  The process iterates in order to minimize the residual error signal and thereby reduce the disturbance.
Patent CA-2121147-C (CA)
Title: Synthetic lung surfactant having antioxidant properties
Inventor: MCLEAN LARRY R
IPC: A61P11/16
Filed: 1992-10-13
Granted: 2002-12-10
Abstract: Synthetic pulmonary surfactants having antioxidant properties consisting of a complex of a polypeptide, with an antioxi-dant moiety, having an alpha-helical structure and a lipid consisting of one or more of the lipids associated with natural pulmon-ary surfactant were prepared. These surfactants are useful in the treatment of respiratory distress syndrome.
Patent CA-2123606-C (CA)
Title: New substituted pyrazolylpyrazoles, processes for their preparation, as well as intermediates, and their use as herbicides
Inventor: HARTFIEL UWE
IPC: C07D/
Filed: 1992-11-12
Granted: 2003-05-20
Abstract: Disclosed are substituted pyrazolylpyrazoles of general formula I    in which R1 is C1-C4-alkyl, optionally substituted by one or more halogen atoms;      R2 hydrogen, or a C1-C4-alkyl, C1-C4-alkylthio, C1-C4-alkoxy, each of which is optionally substituted by one or more halogen atoms, or R1 and R2 together form the group -(CH2)n-X-, where X is bound at R2;      R3 is hydrogen or halogen, R4 is hydrogen or C1-C4-alkyl, R5 is hydrogen, nitro, cyano or the group -COOR6 or -CONR7R8, R6 is hydrogen, C1-C6-alkyl, C2-C6-alkenyl or C2-C6-alkynyl;      R7 and R8 independently of each other are hydrogen or C1-C6-alkyl or R7 and R8 together with the nitrogen to which they are attached form a morpholino, piperidino or a pyrrolidino group X is CH2, O, S (O) m or NR9, R9 is hydrogen or C1-C4-alkyl, m is 0, 1 or 2, and n is 2, 3 or 4.
Patent CA-2124677-C (CA)
Inventor: RHODES JOHN RICHARD
IPC: A61K31/12
Filed: 1993-09-30
Granted: 2008-09-09
Abstract: This invention relates to the use of a class of compounds as immunopotentiators, compositions containing such compounds and their manufacture, combinations of such compounds with anti-tumour or anti-infective drugs and the use of such combinations in the prophylaxis or treatment of such diseases arising from tumours or infections.
Patent CA-2134663-C (CA)
Inventor: CRUYSBERGHS RUDIGER JOSEF CHAR
IPC: B65D83/14
Filed: 1992-04-30
Granted: 1999-01-05
Abstract: An apparatus for dispensing product from a container (16) in which first and second members (36, 40) are provided in a vessel (32) which is disposed in the container (16). The first member (36) defines with the vessel a first chamber (38), and the second member (40) defines with the first member (36) a second chamber (46). When the first member moves to a second position in response to the pressure in the container decreasing below the predetermined pressure the first chamber is connected with the container to permit the pressurized gas in the first chamber to pass to the container. When the first member moves to a first position this connection is disconnected to prevent the passage of the gas.
Patent CA-2140276-C (CA)
Inventor: BAIRD JAMES CLARK
IPC: B65D51/16
Filed: 1993-07-02
Granted: 1999-10-12
Abstract: L'invention concerne un capuchon (2) destiné à un récipient contenant des liquides. Le capuchon (2) selon l'invention permet la mise à l'air libre (5) du récipient, ainsi que la distribution (8) du liquide.
Patent CA-2140599-C (CA)
Inventor: LEIDREITER HOLGER
IPC: A61K8/37
Filed: 1995-01-19
Granted: 2002-03-26
Abstract: The invention relates to the method of preparing a hair conditioner based on diacetyl tartrate esters of fatty acid glycerides of the following general formula: (see formula I and II) wherein Ac is the acetyl group, FA is the acyl group of a fatty acid or of a fatty acid mixture with 8 to 18 carbon atoms, and a) and b) being present in a ratio by weight of 100 : 0 to 60 : 40.
Patent CA-2145828-C (CA)
Inventor: GRIMMER ROBERT A
IPC: B01J13/02
Filed: 1995-03-29
Granted: 2002-11-26
Abstract: Spherical particles having a diameter between .007" and .040" are formed from melt extruded thermo-plastic material suitable for casting on a heated mold surface and melting thereon to form a thin layer of material having a nominal thickness of  .040" that is cooled and removed from the mold surface as a part having  a  porosity  less  than  a  visually  observable threshold.  The process includes the steps of providing microspheres formed of blended and melt extruded thermo-plastic, plasticizers (if necessary) and pigment addi-tives that constitute less than 5% by weight of the blend and shaped as a smooth round spherical particle; providing a heated casting surface and distributing a predetermined charge of such microspheres against the heated casting surface; melting the microspheres as a layer of thermoplastic material having a porosity less than .003 inches and thereafter cooling and removing the non-porous  layer  from  the  casting  surface;  in  one embodiment of the process the microspheres are provided as a fixed charge having a weight substantially the same as the finished part and wherein the fixed charge is comprised of such microspheres; centrifugally casting the microspheres onto a heated mold surface where they are melt flowed into a thin layer, cooled and removed from the mold; in another embodiment of the process the microspheres are provided in greater weight quantities than the weight of the finished part and are placed on a heated mold surface to maintain a static pressure of the  microspheres  material  against  the  heated  mold surface as they are melt flowed into a thin layer.