baber/WOPTO huggingface dataset:
Patent CA-2079649-A1 (CA)
Title: Mud pump noise cancellation system
Inventor: KOSMALA ALEXANDRE
IPC: E21B47/18
Filed: 1992-10-01
Abstract: ABSTRACT OF THE DISCLOSURE    Methods for recovering a LWD or MWD data signal in the presence of mud pump noise are provided and generally comprise calibrating the drilling mud pressure as a function of the mud pump piston position, and then tracking the piston position during transmission of the LWD or MMD data signal and using the calibration information to subtract out the mud pump noise.          Calibration is accomplished in the absence of the LWD or MWD data signal to provide a correlation between mud pump piston position and the drilling mud pressure.  Then, when the LWD or MWD data signal is being generated, the mud pump piston position is tracked such that the pressure due to the pump can be subtracted and the LWD or MWD signal recovered. Where a plurality of mud pumps are being utilized, calibration is accomplished by running the mud pumps together in the absence of the LWD or MWD data signal, and processing the received mud pressure signals in the Fourier domain to allocate respective portions of the mud pressure signals to respective mud pumps such that each mud pump is provided with a signature as a function of its own piston position.  With the piston position of each mud pump being tracked, the sum of the mud pressure signals generated by the mud pumps based on their piston positions is subtracted from the total received signal to recover the LWD or MWD signal.
Patent CA-2082203-A1 (CA)
Inventor: CHU SHAW-CHANG
IPC: C08J7/043
Filed: 1992-11-05
Abstract: F-6427-L(SGC) ABSTRACT            Monoaxially oriented polypropylene is coated with a pigmented polymer dispersion which imparts good print quality, ink adhesion, and smudge resistance to the ultimate biaxially oriented film.
Patent CA-2083072-A1 (CA)
Title: Method for manufacturing polyimide multilayer wiring substrate
Inventor: HASEGAWA SHINICHI
IPC: H01L23/538
Filed: 1992-11-17
Abstract: A layered structure comprising wiring layers and polyimide layers is formed on a ceramics board and a layered structure comprising wiring layers and polyimide layers is formed on an aluminum board.  Both the structures are bonded together through adhesives to bring metal bumps formed on the former structure into electric contact with metal bumps formed on the surface of the latter structure and thereafter the aluminum board is removed.
Patent CA-2083471-A1 (CA)
Title: Universal remote controller
Inventor: HO KEUNG TSE
IPC: G08C19/28
Filed: 1993-03-16
Abstract: ABSTRACT          UNIVERSAL REMOTE CONTROLLER            A universal remote controller which can be set to control one of a plurality of home appliances, including: A plurality of keys for user selection of home appliance to be controlled, each key corresponds to a respective home appliance. A electronic dis-play system for displaying user-selectable commands of the home appliance being controlled. Another set of keys for user selection of those user-selectable commands. Input/output terminal for interfacing with other computer-based storage device such as another remote controller, and a card insertion port for engaging with a removable memory card, so as to allow new data for remote control of new appliances to be supplied from outside to, or retrieved from, the universal remote controller.
Patent CA-2084114-A1 (CA)
Title: Dynamic shear rheometer and method
Inventor: ESCHBACH ALAN R
IPC: G01N3/02
Filed: 1992-11-30
Abstract: DYNAMIC SHEAR RHEOMETER AND METHOD     Abstract of the Disclosure An improvement in a rheometer and the method for measuring rheological properties of a viscoelastic test specimen at different temperatures, at which different temperatures the viscoelastic properties exhibit a relatively wide difference, wherein the test specimen is placed between and is coupled with opposed plates, one of the opposed plates is oscillated angularly relative the other of the opposed plates, and the angular displacement of one of the plates relative to the other of the plates and the torque associated with the relative angular displacement are measured within an optimum range of torque and angular displacement for determining the rheological properties, couples a first contact area on one of the opposed plates with the test specimen when the test specimen is at one of the different temperatures, and couples a second contact area on the one of the opposed plates with the test specimen when the test specimen is at another of the different temperatures, the first contact area being different from the second contact area such that, by virtue of the difference between the first and second contact areas, the torque and the relative angular displacement measured at each of the one and the another of the different temperatures fall within the optimum range.
Patent CA-2084713-A1 (CA)
Title: Semiconductor integrated circuit
Inventor: YONEDA MASATO
IPC: G11C15/00
Filed: 1992-12-07
Abstract: ABSTRACT OF THE DISCLOSURE  A semiconductor integrated circuit capable of retrieving data from a number of memory cells without mutual interference at high speed and making it possible to build a large capacity data base at higher speed is provided with a set of retrieval memory word blocks including a first and a second memory unit respectively for defining the electrical connection or otherwise nonconnection between a first or second data line and a source electrode line and a control word line for controlling these memory units, a match line having a first potential setting means for setting a first potential beforehand, a sense amplifier for detecting the potential of the match line, and a second potential fixing means for fixing the potential of the match line to a second potential with the source electrode line as a control input.          The second potential fixing means is made active or inactive by means of the control word line to control the potential of the match line by making or breaking the connection between the first and second data lines and the common source electrode line in accordance with the definition of the connections of the first and second memory units.
Patent CA-2085433-A1 (CA)
Title: Process for oligomerizing olefins using titanium salts or zirconium salts deposited on silicon dioxide
Inventor: SANDERSON JOHN R
IPC: C07C2/14
Filed: 1992-12-15
Abstract: ABSTRACT (D# 81,064-F) An improved process is disclosed for preparing synthetic lubricant  base  stocks.    Synthetic  lubricant  base  stocks  are prepared in good yield by oligomerizing linear olefins using silica gels having certain titanium or zirconium salts deposited thereon.
Patent CA-2087895-A1 (CA)
Title: Corrosion inhibitors
Inventor: ARMSTRONG PAUL
IPC: C09D161/04
Filed: 1993-01-22
Abstract: Coating composition comprising:      A) an organic film-forming binder; and B) a corrosion-inhibiting amount of a water-insoluble salt of i) a carboxylic acid having the formula (I):    in which a is 0 or an integer ranging from 1 to 5; m and n, independently, are 0 or an integer ranging from 1 to 10; X1 is O, S or -C(R5)(R6) provided that, if m and n are each 0, then X1 is not O or S; R1, R2, R3, R4, R5 and R6 are the same or different and each is hydrogen, C1-C15 alkyl, C2-C15 alkenyl, C3-C12 cycloalkyl, C2-C15 alkyl interrupted by one or more O-, N- or S-atoms, or each is C6-C10 aryl, C7-C12 aralkyl or C7-C12 aralkenyl each optionally substituted by one to five groups R, or any two of R1 and R2, R3 and R4 or R5 and R6 may form a C3-C12 cycloalkyl ring or a C6 aryl ring; and R is halogen, nitro, cyano, CF3, C1-C15 alkyl, C5-C12 cycloalkyl, C2-alkenyl, C1-C15 halogenoalkyl, C1-C12 alkoxy, C1-C12 thioalkyl, C6-C12 aryl, aryloxy, C7-C12 aralkoxy, C7-C12 alkaryl, CO2H, CO2-C1-C12 alkyl in which the alkyl group is optionally interrupted by one or more O-, N- or S-atoms, CO2-C7-C12 alkaryl, CO2-C6-C12-aryl in which the aryl group is optionally substituted with one or more carboxy groups, -C(=O)H, -C(=O)-C1-C12 alkyl in which the alkyl group is optionally interrupted by one or more O-, N- or S-atoms, -C(=O)-C7-C12 alkaryl, -C(=O)-C6-C12 aryl in which the aryl group is optionally substituted with one or more carboxy groups, NH2, NH-C1-C15 alkyl or N(C1-C15 alkyl)2 groups in which the alkyl groups are optionally interrupted by one or more O-, N- or S-atoms, or any two groups R may form a fused aliphatic or C6 aromatic ring; and ii) a base selected from a) a canon of Group Ib, IIa, IIb, IIIa, IIIb, IVa, IVb, Va, VIa, VIIa or VIIIa of the Periodic Table of Elements, b) an amine of formula II:    in which X, Y and Z are the same or different and each is hydrogen, C1-C24 alkyl optionally interrupted by one or more O- or N-atoms, C7-C9 phenylalkyl or C7-alkylphenyl, or two of X, Y and Z, together with the N-atom to which they are attached, forms a 5-, 6- or 7- membered heterocyclic residue which optionally contains one or more further O-, N- or S-atoms, and which is optionally substituted by one or more C1-C4 alkyl, amino, hydroxy, carboxy or C1-C4 carboxyalkyl groups, or two or X, Y and Z represent a double bond connected to a carbon atom and, together with the other one of X, Y and Z, form a heterocyclic ring which optionally contains one or more further O-, N- or S-atoms and may be fused to a phenyl ring, provided that X, Y and Z may not be simultaneously hydrogen; c) a guanidine of formula III:      R7~N~C(NH2)2 III in which R7 is hydrogen or C1-C15 alkyl; d) an amidine of formula IV:      R7~C(=NH)NH2 IV in which R7 has its previous significance; or e) melamine which is optionally substituted with one or more C1-C15 alkyl groups or phenyl groups.
Patent CA-2089420-A1 (CA)
Title: Inlet control device
Inventor: ENRIGHT PATRICK
IPC: F16K3/02
Filed: 1993-02-12
Abstract: ABSTRACT OF THE INVENTION   This invention relates to a device for controlling the flow of fluid through a manhole inlet comprising a base plate having an opening therethrough, the base plate being releasably securable to the manhole with the base plate opening communicating with the manhole inlet and a plate having a notch along one edge thereof releasably securable to the base plate so as to adjust and control the flow of fluid through the manhole inlet.
Patent CA-2090780-A1 (CA)
Title: Dual tank toilet or dual toilet
Inventor: KUZIC DANILO C
IPC: E03D1/14
Filed: 1993-02-26
Abstract: ABSTRACT            A solid, watertight Partition, divide water tank into two sec-tions, each with full set of me-chanisms, for independent flush-ing. It gives option, to be used as toilet, or,Urinal,only, thus saves large amounts of water.
Patent CA-2090900-A1 (CA)
Title: Valve snubber
Inventor: WINNIKE DON
IPC: F16K47/00
Filed: 1993-03-03
Abstract: A snubber which may be used with a diaphragm actuator or other movable member to prevent sudden movement of the movable member is provided. A typical diaphragm actuator has a diaphragm housing with a movable diaphragm therein dividing the diaphragm housing into two separate chambers. An actuator stem is connected to the diaphragm to move with the diaphragm. The snubber has a housing with an open interior space communicating through a communication path with a first one of the actuator chambers. A first piston is reciprocably movable within the snubber housing, the first piston being operably connected to the actuator stem to move therewith. The first piston divides the snubber housing space into two chambers, one on each side of the first piston. A passage is provided which leads from one of the snubber chambers to the other. A floating piston positioned in the communication path between the first piston and the first actuator chamber. Thus, as the first piston reciprocates within the snubber space, the floating piston moves in an opposite direction to accommodate the changing volume within the snubber space occasioned by the movement of the first piston into and out of the snubber space.
Patent CA-2092708-A1 (CA)
Inventor: HU HO-PIN
IPC: B01D67/00
Filed: 1991-09-11
Abstract: Cette invention concerne des membranes au polyéthersulfone semi-hydrophobe à charge cationique (CSHP) ayant des propriétés hydrophiles et semi-hydrophobes, ainsi que leur préparation par post-traitement. De manière spécifique et à titre d'exemple, un substrat de membrane au polyéthersulfone hydrophile microporeux qui renferme un additif polymère non-lixiviable ayant des groupes fonctionnels, est traité dans une solution alcaline pour produire une réaction simultanée ou séquentielle avec 1) un premier agent modifiant la charge qui est une polyamine modifiée par épichlorohydrine, et 2) un deuxième agent modifiant la charge polymère renfermant une charge positive (ou pour réagir avec le seul premier agent modifiant la charge); puis on cuit ledit substrat jusqu'à ce qu'il durcisse à une température élevée; et pour terminer on le lave et on le sèche. Les membranes au CSHP sont utilisées pour diverses applications telles que le filtrage de liquides et le transfert macromoléculaire de biomolécules à partir de gels d'électrophorèse ou directement pour l'immobilisation sur la membrane en vue de l'hybridation et de la purification. Les membranes au CSHP - qui ne présentent pas, comme les membranes chargées classiques, une baisse de sensibilité et de performance de ré-utilisation qui caractérise ces dernières - maintiennent leur sensibilité et leur performance de ré-essai et sont excellentes à ce niveau après plusieurs cycles de ré-utilisation.
Patent CA-2093243-A1 (CA)
Inventor: WATSON LOWELL G
IPC: B65D8/02
Filed: 1993-04-02
Abstract: A plastic drum is formed with a body having an access hole on top and protective chimes. The body also includes a sloping bottom with a sump aligned with the access hole to allow, substantially, all the contents of the drum to be removed without turning the body upside down.
Patent CA-2094970-A1 (CA)
Title: Drift tube and method of manufacture
Inventor: BALES FRANK E
IPC: G01N23/00
Filed: 1993-04-27
Abstract: ABSTRACT           A gate for an insulating cylindrical drift tube is comprised of a plurality of spaced parallel wires cemented to an edge of one end of the tube, the wires each having similar tension between the edge, even numbered wires being electrically connected together, and odd numbered wires separately being electrically connected together, whereby two mutually insulating interdigitated grids of wires having similar tension are formed.
Patent CA-2095965-A1 (CA)
Title: Thermal recording sheet
Inventor: MINAMI TOSHIAKI
IPC: B41M5/42
Filed: 1993-05-11
Abstract: ABSTRACT       An intermediate layer containing polymeric fine particles having a cross-linking structure with a particle diameter of 0.2 to 5.0µm and an inorganic pigment having an oil absorption of less than 170 ml/100g in a ratio of 1:1 to 1:9 is provided between a substrate and a thermal color developing layer,  thereby providing a thermal recording sheet having superior dot reproducibility and image quality, with no sticking or adherence of residue.
Patent CA-2096999-A1 (CA)
Inventor: EDMUNDS NEIL
IPC: E21B21/16
Filed: 1993-05-26
Abstract: A method is provided for the stabilization and control of the two-phase flow of hot fluid containing water issuing from the top of an upwardly rising conduit or riser of a horizontal oil-production well. The fluid enters the bottom of the riser at a temperature higher than the saturation temperature of water at the conditions prevailing at the top of the riser. A first mass rate flow controller is coupled to a mass rate flow detector at the top of the well for controlling mass flow at a substantially constant rate over a short time interval. Signals indicative of the optimal flow rate for the process are input to a second controller. The second controller adjusts the mass flow rate setpoint of the first controller. The second controller has a time constant significantly longer than that of the first controller. Thus, the mass rate of hot fluid is controlled at a substantially constant mass rate over the short term, thereby stabilizing two-phase flow, and is adjusted over the longer term to control the flow of fluid at an optimal rate.
Patent CA-2097517-A1 (CA)
Inventor: BECKER DANIEL P
IPC: A61K31/47
Filed: 1991-11-25
Abstract: 2097517 9210476 PCTABS00013 This invention relates to novel N-substituted lactams having formula (I) useful in the treatment and prevention of cholecystokinin (CCK) related disorders of the gastrointestinal, central nervous and appetite regulatory systems of mammals.
Patent CA-2097897-A1 (CA)
Inventor: PRYOR JOHN W
IPC: E04B9/00
Filed: 1993-06-07
Abstract: ABSTRACT      An apparatus for installing a cubicle curtain or IV track on a dropped ceiling constructed with standard tee-bars and lay-in tile includes a sliding channel member for sliding  engagement  over  the  track,  and  a  clip  device secured  to  the  upper  wall  of  the  channel  member  for engaging over a ceiling tee-bar.  The channel member can slide along the track and the clip device can slide along the tee-bar for positioning the track, before fastening the track in position.  The clip device in one version includes a vertical support for direct attachment to ceiling or roof wires, where additional support is necessary.
Patent CA-2100261-A1 (CA)
Title: Process for the preparation of wort
Inventor: VERSTEEGH CHRISTIAAN WILLEM
IPC: C12C7/06
Filed: 1992-01-10
Abstract: This invention relates to a process for the preparation of wort starting from mash, comprising the separation of spent grain from the mash to form a clear wort in at least one membrane filtration unit having a pore size of the filter not exceeding 2.0 µm, if desired addition of hop to the wort and boiling of the wort.
Patent CA-2100421-A1 (CA)
Inventor: CATTA DAVID
IPC: A47B9/00
Filed: 1993-07-13
Abstract: There  is  described  an  improved  mechanism  for adjusting the height of a work surface, comprising vertically movable shafts for supporting a work surface thereon for up and down movement,  an actuator operable  for  selectively raising or lowering the shafts, cables interconnecting the shafts and the actuator, the cables being displaceable to raise and lower the shafts in response to operation of the actuator and a compression resistant sleeve surrounding each of the cables between the shafts and the actuator.
Patent CA-2101072-A1 (CA)
Title: Waveguide sensor
Inventor: KLAINER STANLEY M
IPC: G01N21/55
Filed: 1992-01-24
Abstract: A species-specific metal clad segment on a waveguide, including a planar waveguide, allows controlled light leakage of light propagating through the waveguide by total internal reflection, to measure refractive index and identify chemical species. A waveguide sensor is designed for a particular chemical species by selecting a metal clad with an affinity for the species and by matching the refractive indexes of the waveguide body, clad, metal clad segment, and chemical species. Dual or multiple measurement methods use a pair of multiple metal clad segments of different specificity. The metal clad segment may include another material to provide a suitable refractive index while having the desired affinity for the chemical species or to provide a catalyst to react the species to form a reaction product which is more readily detected.
Patent CA-2103285-A1 (CA)
Inventor: VALIULIS STANLEY C
IPC: A47F5/00
Filed: 1993-11-17
Abstract: A hanger assembly, used for displaying merchandise in front of a perforated horizontal shelf, includes an elongated plate having a mounting anchor for attaching to the shelf, two depending wings for holding labels, and two hooks struck out of the wings for suspending display merchandisers. the hooks and the wings are oriented so that both the merchandisers and the labels are clearly visible from a line of sight parallel to the shelf, thereby increasing the potential sales of the merchandise supported from the hanger.
Patent CA-2105221-A1 (CA)
Title: Pivotal Tool Holder
Inventor: CARON CLEMENT
IPC: F16M13/00
Filed: 1993-08-31
Abstract: A tool holder enables a person to remotely operate a manual tool through an elongate shaft.  This tool holder is formed with a first tool holder section mechanically connectable to one end of the elongate shaft, and a second tool holder section mechanically connectable to the handle of the manual tool.   The first and second tool holder sections are articulated about a given pivot axis to adjust their relative angular  position  in  which  they  are  subsequently locked.   Therefore,  the tool can be remotely and manually operated through the elongate shaft after the relative angular position between the first and second tool holder sections has been adjusted to facilitate remote manual operation of the tool.
Patent CA-2105843-A1 (CA)
Title: Wheel cleaning system
Inventor: FREEMAN ERNIE
IPC: B62D55/088
Filed: 1993-09-09
Abstract: WHEEL CLEANING SYSTEM                 ABSTRACT OF THE DISCLOSURE             In a refuse compactor, a set of cutter blades, one on each wheel and one fixed relative to the wheel's associated axle operable to cut refuse entrained by the wheel and tending to be wrapped around the associated axle so as to avoid the build-up of refuse on the axle which otherwise can lead to unnecessary wear of the wheel and drive train as well as unnecessary fuel consumption.
Patent CA-2106150-A1 (CA)
Inventor: BAI SHUSHAN
IPC: F16H59/38
Filed: 1993-09-14
Abstract: FUZZY LOGIC SHIFT SCHEDULING FOR AUTOMATIC TRANSMISSIONS            ABSTRACT OF THE DISCLOSURE         Transmission output speed and engine throttle position are inputs to a control which determines acceleration and input speed.  Fuzzy logic has acceleration and throttle membership functions and a set of upshift and downshift values, and rules for weighting each of the values in accordance with the degree of membership of acceleration and throttle position in certain of the functions to determine a downshift point and an upshift point.  The input speed is compared to the shift points to decide whether to order a shift.  Two or more sets of shift values are stored and are selectable for different performance options.  The shift values are stated in terms of a percentage of engine governed speed to allow different engines to be coupled to the transmission.  Lockup clutch apply and release logic controls converter lockup to maintain converter mode when significant torque multiplication is occurring and generally to maintain lockup mode when the transmission range is at or above the lowest allowable lockup range.
Patent CA-2106191-A1 (CA)
Inventor: LEARY JAMES F
IPC: G01N33/00
Filed: 1992-03-18
Abstract: A system for sorting particles is arranged such that the presence or absence of multiple parameters (TOTAL, RARE1, RARE2, RARE3) is determined for each particle in a flow of particles, and a logic condition (R) is determined based on the multiple parameters.  Thereafter, particles are outputted from the system when the logic condition (R) is present. Accordingly, multiparameter high-speed measurements of a rare subpopulation of particles (e.g.  biological cells) can be made amidst a larger population of particles with differing characteristics. When attached to a multiparameter flow cytometer/cell sorter (10) and microcomputer, the system allows multiparameter analysis of cells at rates in excess of 100,000 cells/sec. This system can be an outboard module (12) attached to a commercially available or home-built flow cytometer.
Patent CA-2107194-A1 (CA)
Inventor: HARRIS ELLIS D
IPC: G02B5/18
Filed: 1993-09-28
Abstract: An optical scanning system uses a stationary binary diffractive optical element and a rotating binary diffractive element to focus and scan a beam along the scan line.