baber/WOPTO huggingface dataset:
Patent CA-2062836-C (CA)
Inventor: BURRAGE LAWRENCE M
IPC: C21D6/00
Filed: 1992-03-12
Granted: 2000-11-21
Abstract: A method of heat treating an amorphous metal alloy by immersing the alloy in a fluidized bed to heat the alloy to a temperature below its recrystallization temperature. The alloy is maintained in the fluidized bed for a time sufficient to reduce internal stresses while minimizing crystal growth and nucleation of crystallites in the alloy. Then, the alloy is removed from the fluidized bed and cooled. A magnetic field can be applied to the alloy before, during or after heating the alloy in the fluidized bed. The magnetic field is applied for a time sufficient to achieve substantial magnetic domain alignment while minimizing crystal growth and nucleation of crystallites in the alloy. The cooling step is effective to maintain the magnetic domain alignment in the alloy. The cooling step can be performed with a chill bath ar a fluidized bed which is cooled by a circulating gas such as nitrogen or air. The alloy can be slowly cooled by convection and radiation after it is removed from the first fluidized bed.      An apparatus for magnetic annealing of amorphous metal alloy cores. The apparatus includes a fluidized bed for heating the cores, a conveyor for transporting the core and immersing the core in the fluidized bed and at least one winding for applying a magnetic field to the core. The apparatus can include a chill bath and/or a second fluidized bed for cooling the core. A chamber can be provided between the tyro fluidized beds for slow cooling the core by convection and radiation prior to cooling the core at a faster rate in the second fluidized bed.
Patent CA-2067030-C (CA)
Title: Locking means for extendable baton
Inventor: PARSONS KEVIN L
IPC: F41B15/02
Filed: 1992-04-24
Granted: 1994-04-12
Abstract: ABSTRACT An extendable baton includes a hollow tubular barrel with nesting telescoping members which may be ex-tended to a fully expanded position.  The telescoping members are held in the closed position and the opened expanded position by a detent lock, with the ends of the telescoping members designed to engage each other in a positive, rigid, non-interfering relationship by using multiple, parallel tapered stop surfaces.
Patent CA-2070448-C (CA)
Title: Thermal modulation inlet system for gas chromatography
Inventor: SACKS RICHARD D
IPC: G01N30/38
Filed: 1992-06-04
Granted: 1997-12-23
Abstract: A gas chromatography system which incorporates a simplified sample injection system in which replaces conventional mechanical injection systems with one based strictly upon thermal trapping of a continuously supplied carrier gas and sample stream.  The carrier gas and sample stream pass continuously through the device which  incorporates a thermal  focusing chamber which communicates  with  the  inlet  end  of  a  gas  chromatography separation column.  By causing the focusing chamber temperature of a sample tube passing through the focusing chamber to be dropped, incoming components comprising the sample stream are condensed and trapped.  Injection into the column occurs rapidly heating the sample in the thermal focusing chamber causing a narrow sample plug to be introduced into the column.  Various embodiments of this invention are intended for operation for evaluating carrier gas and sample stream provided at a above atmospheric pressure, or which are drawn through the system by vacuum source at the outlet end of the column.   In addition, vacuum backflushing features are also described.
Patent CA-2071041-C (CA)
Title: Toilet paper device
Inventor: BRISSON ARTHUR J
IPC: A47K10/38
Filed: 1992-06-11
Granted: 1995-09-12
Abstract: A holder for toilet paper roll has a mount for mounting the holder on a fixed surface such as a wall. A roll carrier supports the roll for dispensing of the paper. The carrier is mounted on the mounting means by a support that allows the variable positioning of the carrier with respect to the mounting means against the wall. In one embodiment, the support is a telescopic tube arrangement. In a second embodiment, the support is a pantograph linkage. In the third embodiment, the support is an elongate flexible element.
Patent CA-2071197-C (CA)
Title: Method and apparatus for power transmission to a surface driving propeller mechanism and use of a turbine between the driving engine and propeller mechanism
Inventor: SELMER JOERGEN
IPC: B63H23/06
Filed: 1990-12-12
Granted: 1997-06-17
Abstract: A method and a device for power transmission from a motor having a supercharging assembly, particularly a supercharged Diesel-engine (7), to a gear (3) with a surface water driving propeller mechanism (4), mounted in a boat of the planing variety and preferably with a large propeller with a large pitch, in which a turbine coupling (10), which can be filled to a variable extent, is mounted between the supercharged motor (7) and the gear (3), the motor being designed to drive the pump portion (15) of the tur-bine coupling (10) and the turbine portion (17) of the turbine coupling (10) being connected to the input shaft (6) of the gear (3), the turbine coupling (10), when the boat is started, being emptied completely or partially, in such a way that it is at least partially disconnected from the gear, the motor being accelerated to such a speed, that the supercharging assembly of the motor (7) is con-nected, the turbine coupling being quickly filled with hydraulic medium, the propeller mechanism (4) being influenced by the sub-stantially maximum output of the motor, caused by the supercharging assembly, and when the boat has reached its planing speed the motor speed in the desired way being reduced and/or the extent of filling of the turbine coupling being reduced, yet not to a lower speed than that the boat will be propelled with a speed which is somewhat larger than the planing limiting speed. The in-vention also relates to the use of a turbine coupling in planing boats having gears of the above-described variety.
Patent CA-2073687-C (CA)
Title: Point-of-purchase coupon dispenser
Inventor: DEGASPERI THOMAS A
IPC: G09F27/00
Filed: 1991-01-11
Granted: 1996-06-18
Abstract: A device for automatically dispensing coupons or the like. The problem with conventional coupon distribution is that consumers do not really redeem the coupons. The device employs a point-of-purchase promotion and distribution of the coupons. The device is self-powered (109, 110) and a compact intelligent device (101) which has an element (105) which senses the proximity of a consumer and draws their attention by emitting an audio-visual signal (106) while simultaneously presenting the promotional material (108) through a slot (104).
Patent CA-2074255-C (CA)
Title: Composite materials and process
Inventor: KRUEGER DENNIS L
IPC: B29C48/08
Filed: 1991-01-07
Granted: 2001-01-02
Abstract: Inelastic multicomponent films characterized by at least one elastomeric core (2) and a surrounding in-elastic matrix (3); preferably prepared by coextrusion. The film, when stretched and allowed to recover, will create a textured elastomeric composite film. The composite film is useful in garment applications.
Patent CA-2076174-C (CA)
Title: Calibration for ultra high purity gas analysis
Inventor: LEGGERT GREGORY HOWARD
IPC: B01F23/10
Filed: 1992-08-14
Granted: 1995-11-21
Abstract: A calibration device is provided for rapidly delivering ultra high purity calibration gas mixtures, and sample gas, to a gas analyzer at elevated temperature conditions.  Steady flow rates are desirably provided to the highly sensitive analyzer.
Patent CA-2076326-C (CA)
Title: Down force adjustment and lift for an opener supported from a frame by lift arms
Inventor: FOLEY DANIEL MICHAEL
IPC: A01C7/20
Filed: 1992-08-18
Granted: 1996-07-30
Abstract: A plurality or parallel arm type openers are mounted on a frame tube, and a rockshaft is supported directly below the tube.  Adjacent each of the openers, a lever arm is fixed for rotation with the rockshaft and, upon rotation of the rockshaft in a first direction, the lever arm engages the parallel arms to lift the opener while the frame tube remains stationary in the vertical direction.  A tension spring assembly connected between the parallel arms and the lever arm applies varying down force when the opener is lowered by rotating the rockshaft in the opposite direction.  The amount of down pressure can be adjusted for varying conditions by rotation of the rockshaft, and adjustment can be made on-the-go from the tractor cab to compensate for changing ground conditions in a given field.  Locking structure on the row units permits selective lock-up of row units with a single cycle of the hydraulic lift system.
Patent CA-2079780-C (CA)
Title: Methods and formulations for stabilizing fibroblast growth factor
Inventor: FOSTER LINDA C
IPC: A61K38/22
Filed: 1991-03-28
Granted: 2002-02-12
Abstract: Pharmaceutical formulations and a method for their preparation are provided.  These formulations provide a stabilized ba-sic fibroblast growth factor (bFGF) which is less susceptible to oxidation or metal-induced aggregation by including an amount of a chelating agent effective to stabilize the bFGF.
Patent CA-2083534-C (CA)
Title: Indolopyrrolocarbazole derivatives
Inventor: KOJIRI KATSUHISA
IPC: A61K31/40
Filed: 1992-11-23
Granted: 2003-01-28
Abstract: A compound represented by the following general formula and a pharmaceutically acceptable salt thereof (see formula I) wherein R1 and R2 each independently represent a hydro-gen atom, lower alkyl group, lower alkenyl group, lower alkynyl group, aryl group, aralkyl group or heterocyclic group (the alkyl group, lower alkenyl group, lower alkynyl group, aryl group, aralkyl group and heterocyclic group may each have 1 to 5 substituents selected from the group consisting of carboxyl groups, carbamoyl groups, sulfo groups, amino groups, cyano groups, mono-lower alkylamino groups, di-lower alkylamino groups, hydroxyl groups and halogen atoms), or a group of the formula -Y-R3, and therein Y represents a carbonyl group, thio-carbonyl group or sulfonyl group, and R3 represents a hydrogen atom, lower alkyl group, cycloalkyl group, cycloalkylalkyl group, aryl group, aralkyl group, lower alkoxy group, hydrazino group, amino group, arylamino group, carbamoyl group or heterocyclic group (the lower alkyl group, cycloalkyl group, cycloalkylalkyl group, aryl group, aralkyl group and heterocyclic group may each have 1 to 4 substituents selected from the group consisting of halogen atoms, optionally protected hydroxyl groups, amino groups, carboxyl groups, carbamoyl groups, cyano groups, allyl groups and lower alkoxycarbonyl groups, and the amino group and carbamoyl group may each be mono- or di-substituted by lower alkyl group(s) optionally substi-tuted by substituent(s) selected from the group consist-ing of halogen atoms, hydroxyl groups, amino groups, carboxyl groups, carbamoyl groups and lower alkoxycar-bonyl groups); or R1 and R2 combine to represent a lower alkyli-dene group (the lower alkylidene group may have 1 to 4 substituents selected from the group consisting of amino groups, mono-lower alkylamino groups, di-lower alkylamino groups, hydroxyl groups, carboxyl groups and sulfonyl groups); or R1 and R2 combine together with the nitrogen atom to which they bind to form a heterocyclic group (the heterocyclic group may have on the ring lower alkyl group(s) optionally substituted by group(s) selected from the group consisting of amino groups, hydroxyl groups, carboxyl groups and sulfo group), G represents a pentose group or hexose group, and X1 and X2 each independently represent a hydro-gen atom, halogen atom, amino group, mono-lower alkyl-amino group, di-lower alkylamino group, hydroxyl group, lower alkoxy group, aralkoxy group, carboxyl group, lower alkoxycarbonyl group or lower alkyl group.      This compound has an excellent antitumor effect.
Patent CA-2088779-C (CA)
Title: Computer performance by simulated cache associativity
Inventor: SITES RICHARD L
IPC: G06F12/08
Filed: 1992-05-21
Granted: 1998-09-01
Abstract: A computer system using virtual memory addressing and having a direct-mapped cache is operated in a manner to simulate the effect of a set associative cache by detecting cache misses and remapping pages in the main memory so that memory references which would have caused thrashing can instead coexist in the cache. Two memory addresses which are in different pages but which map to the same location in the cache may not reside in the direct-mapped cache at the same time, so alternate reference to these addresses by a task executing on the CPU would cause thrashing. However, if the location of one of these addresses in main memory is changed, the data items having these addresses can coexist in the cache, and performance will be markedly improved because thrashing will no longer result. For a CPU executing a virtual memory operating system, a page of data or instructions can be moved to a different physical page frame but remain the same virtual address. This is accomplished by simply updating the page-mapping tables to reflect the new physical location of the pag e, and copying the data from the old page frame to the new one. The thrashing condition is detected and corrected dynamically by latching cache miss addresses and periodically sampling the latch, the remapping pages containing the addresses found upon samp ling. The direct-mapped cache must be large enough to hold two or more pages.
Patent CA-2091100-C (CA)
Title: Printed circuit board carried inside a cam-operated timer
Inventor: AMONETT DANIEL K
IPC: H01H43/02
Filed: 1993-03-05
Granted: 1996-03-19
Abstract: A dryness sensing printed circuit board carried inside a cam-operated timer housing is accomplished by bonding a printed circuit board inside a timer housing cover plate.  Electrical connections between the printed circuit board and timer components are provided by conductive pads on the printed circuit board that contact an electrical connector attached to timer components when the timer housing coverplate is installed on the timer housing.
Patent CA-2096728-C (CA)
Title: Data packet alignment in a communication system
Inventor: AVERBUCH NIMROD
IPC: H04B7/26
Filed: 1992-08-19
Granted: 1998-06-23
Abstract: A communication system provides data packet timing alignment to facilitate soft handoff. A vocoder (315) transmits compressed voice frames to base-stations (130, 131) along links (110, 112) of variable length, ~L. The ~L translates to a delay ~t in the air-frames to be transmitted by the base-stations (130, 131). To compensate for the time delay ~t, the communication system advances both sets of air-frames to be transmitted by base-stations (130, 131) by at least ~t so that skipping of frames, relative to an air-frame reference (300), during transmission does not occur.
Patent CA-2099848-C (CA)
Title: Rules-based interlocking engine using virtual gates
Inventor: WILSON RICHARD A JR
IPC: B61L21/04
Filed: 1993-07-05
Granted: 1997-01-14
Abstract: A method of implementing a computer based interlocking system for automatic train protection includes providing a data base of prestored rule sets for a plurality of guideway objects, the guideway objects being represented as one or more virtual gates of a plurality of virtual gate types, the rule sets defining conditions for a respective guideway object which must be met before entry through a virtual gate of the object is permitted.  A high-level description of a guideway layout including all of the guideway objects that form interlocking zones is input and processed using the pre-stored rule sets to form an overall interlocking system definition by locating, retrieving and linking appropriate rule sets corresponding to the respective input guideway objects.
Patent CA-2099987-C (CA)
Inventor: CORMA CANOS AVELINO
IPC: C10G11/05
Filed: 1992-11-06
Granted: 1999-08-31
Abstract: Material used as matrix and active in catalysts for the catalytic cracking of heavy fractions of petroleum (FCC), consisting in a fibrous magnesian silicate of the sepiolite type modified by substitution of Mg2+ terminal by trivalent cations and which is active and selective for bottom conversion and for passivation of basic compounds of nitrogen present in food products.
Patent CA-2100879-C (CA)
Inventor: GRENSING FRITZ CARL
IPC: C22C29/12
Filed: 1991-08-02
Granted: 2001-11-20
Abstract: A beryllium metal matrix phase includes up to 70 % by volume of beryllium oxide single crystals dispersed therein. The composites are useful for electronics applications because of their light weight, high strength and effective thermal properties.
Patent CA-2101137-C (CA)
Title: Adjustable brush delivery tip with secondary flow path
Inventor: FISCHER DAN E
IPC: A61C5/06
Filed: 1993-07-22
Granted: 1996-04-02
Abstract: An apparatus for applying coatings to various surface types.  The apparatus includes a dispenser for holding a quantity of the coating material and a delivery tip having adjustable bristles at one end.  The bristles are slidably secured in a spiral passageway formed by a helical ridge inside the delivery tip,  thereby allowing the coating material to be continuously applied without the need to stop  the  procedure  and  rewet  the  applicator.    The applicator  permits  accurate  control  of  the  amount  of coating material applied to the surface.  In this way, the surface receives neither an excessive nor an insufficient amount of the coating material.  Moreover, the bristles may be pushed in to permit the coating material to be applied to a small, irregular surface, such as pits and fissures, or pulled out to permit the  bristles  to  fan out  for application to broad surface areas.  Delivery of relatively viscous coating materials is made easier by providing the spiral passageway around the bristles so that the coating material does not have to flow through the bristles.
Patent CA-2102763-C (CA)
Inventor: BALLESTRAZZI ARIS
IPC: B65B51/14
Filed: 1993-11-09
Granted: 2004-07-20
Abstract: An apparatus for longitudinal welding with fast and reliable scrap removal, suitable for being coupled with a product conveyor for conveying products to be packaged inside a plastic material sheet comprising a saddle (16), capable of being reciprocated in longitudinal direction, above which a longitudinal welding unit (15) is provided, which is constituted by at least one welder bar (23) and one counter-welder bar (20), wherein at least one of the latter elements (23, 20) can be either downwards or upwards shifted in order to interact with the other of said elements (20, 23) and generate a longitudinal side seam (40) on the product (38) partially wrapped inside the plastic material, in which beside the welder bar (23) and the counter-welder bar (20) a pressing element (27) and a counte-pressing element (29) are longitudinally installed facing outwards, which clamp a longitudinal portion of the packaging plastic material, with at least one of said pressing and counter-pressing elements (27, 29) being suitable for being laterally turned over by means of an actuator means (34), and at least one of said elements (27, 29) being provided with a drive roller (27) for a plastic material trimmed scrap (41).
Patent CA-2116257-C (CA)
Title: Photodetector with a resonant cavity
Inventor: HUNT NEIL EDMUND JAMES
IPC: H01L31/0232
Filed: 1994-02-23
Granted: 1997-06-17
Abstract: Described is a resonant-cavity p-i-n photodetector based on the reflection or transmission through a Fabry-Perot cavity incorporating non-epitaxial, amorphous layers with alternating refractive index difference electron-beam deposited on a light-gathering side of a commercially available photodetector. The materials of the Fabry-Perot cavity are be selectable from materials refractive indices of which fall with a large range (from n=1.26 for CaF2 to n=3.5 for Si) preferably from materials which are depositable in an amorphous state. The material combinations are selected so that only wavelengths resonant with the cavity modewill be detected. The microcavity of the RC-PIN design can also be deposited on any existing detector structure, without modification of semiconductor growth. Such a photodetector would be useful for wavelength de-multiplexing applications. Theease of layer deposition, as well as the high degree of tailorability of spectral position, spectral detection width, and maximum numerical aperture of efficient detection, make the RC-PIN attractive for use in wavelength demultiplexing applications. An exemplary RC-PIN photodetector includes a Si/SiO2 Fabry-Perot cavity electron-beam deposited on the InP substrate of a commercial InGaAs photodetector. The detection efficiency relative to a reference device was 52 percent at the resonant wavelength of 1350 nm, with a resonance width of 14 nm, and a 4 percent response for off-resonance wavelengths in the 1100-1700 nm range.
Patent CA-2127002-C (CA)
Inventor: MACKAY SCOTT W
IPC: G01V1/36
Filed: 1994-06-29
Granted: 1998-08-04
Abstract: Disclosed is a method for processing geophysical data that have been gathered over irregular topography. According to the method, a datum is established that lies above the highest topographic peak. The data are time-shifted from the surface to the datum using a replacement velocity that is an extrapolation of the underlying formation velocity, The wavefields beneath the surface are forwardly modeled using a modeling velocity substantially equal to zero. Between the surface and the datum, the wavefields are upwardly modeled using the replacement velocity.
Patent CA-2136742-C (CA)
Title: Process for manufacturing olefin polymers and products prepared by the process
Inventor: HARLIN ALI
IPC: C08F10/00
Filed: 1994-03-25
Granted: 2005-12-27
Abstract: A process for manufacturing bimodal olefin polymers and copolymers having a ratio between low molecular weight fractions and high molecular weight fractions within the range of 40:60-70:30, by mining under shear conditions 5-50 per cent by weight of a low molecular weight unimodal polyolefin having a molecular weight (M w) between 15,000-30,000, and 95-50 per teat by weight of a bimodal polyolefin having a ratio between low molecular weight fractions and high molecular weight fractions within the range of 30:70-55:45. According to the preferred embodiment there is used a multi-phase process comprising a loop reactor followed by a gas-phase reactor, wherein a part of the product coming out from the loop reactor is separated and combined with the bimodal product coming out from the gas-phase reactor.
Patent CA-2141111-C (CA)
Inventor: LOREE DWIGHT N
IPC: C09K8/594
Filed: 1995-01-25
Granted: 1997-03-25
Abstract: A method  of  improving  oil  or  gas  well productivity from a well penetrating a formation in an oil  or  gas  reservoir,  by  injecting  a stream  of liquified drive fluid into the well ahead of a load fluid to establish a miscible bank of drive fluid in the well.  While injecting the stream of liquified drive fluid into the well, a load fluid in which the liquified drive fluid is miscible is injected into the well mixed with the liquified drive fluid. The ratio of liquified drive fluid to load fluid is initially at a level sufficient to form a miscible bank of drive fluid in the gaseous state ahead of the load fluid in the well. Subsequently, the ratio of liquified drive fluid to load fluid injected into the well is reduced.
Patent CA-2141420-C (CA)
Title: Detecting faults in power lines
Inventor: JOHNS ALLAN THOMAS
IPC: H02H1/00
Filed: 1993-08-23
Granted: 2002-01-08
Abstract: A system for detecting a fault in a power line (1) includes, in the power line (1), a first circuit (4) capable of attenuating sig-nals within a first frequency band, which is centered on a first frequency, substantially more than it attenuates signals outside the first frequency band, and, a second circuit (5) connected to the power line (1) on one side of the first circuit (4), the second circuit (5) being capable of extracting signals within a second frequency band that includes the first frequency. The relative levels of two signals extracted by the second circuit (5), are detected and signalled, the two signals being at respective frequencies which the first circuit is capable of attenuating by different relative amounts.