baber/WOPTO huggingface dataset:
Patent CA-2046048-C (CA)
Title: Method of and apparatus for rewritable recording and erasing and rewritable recording film
Inventor: YAMADA KEIKI
IPC: B41M5/30
Filed: 1991-07-02
Granted: 1996-11-05
Abstract: In a rewritable recording apparatus using a recording medium 1 having a recording layer which exhibits a color developing property when a first kind of heat energy is applied thereto and a tone reducing property when a second kind of  heat  energy is  applied thereto, a recording-energisation control section 34 supplies an image recording signal corresponding to a desired display image to a heating device 3 to cause it to generate  heat with the first kind of heat energy.  This heating device 3 imparts the first kind of heat energy to the recording medium 1, whereby a desired display image is recorded on the recording medium 1.  An erasure control section 35 supplies an image erasing signal corresponding to a desired erasing range to the heating device 3 so as to cause it to generate heat with the second kind  of heat energy.  This heating  device 3 imparts the second kind of heat energy to the recording medium 1, whereby the image recorded on the recording medium 1 is erased.
Patent CA-2047627-C (CA)
Title: Gravel pack well completions with auger-screen
Inventor: RICHARD BENNETT MARTIN
IPC: E21B43/04
Filed: 1991-07-23
Granted: 1997-11-04
Abstract: A method and apparatus for installing a gravel pack completion which does not require the circulation of fluids during installation.  the gravel is first placed or preset within the completion zone and then a well completion tool (e.g. a fluid-permeable liner) having an auger blade thereon is lowered and rotated into the preset gravel without circulating fluid through the tool. Since the auger blade mechanically displaces the gravel upward as the tool is moved into the preset gravel, there is no need to flow fluid under pressure to "fluidize" the gravel as is required in prior completions of this type.
Patent CA-2048218-C (CA)
Title: Universal internal core lifter apparatus
Inventor: STARKEY GLENN
IPC: B29C45/44
Filed: 1991-07-31
Granted: 2002-09-17
Abstract: In a mold having a pair mold halves for molding plastic parts, there is provided an internal core lifter that has one end attached to an ejector system of a mold and that has an opposite end used to mold and eject the plastic part. A universal internal cone lifter is provided that reduces the number of custom core lifter designs and inventories because it can be cut to the desired length and pivoted to the desired angle. The one end of the core lifter blade both pivots and translates because it is mounted by a curved dovetail connection on a universal coupling that translates along a support. A linear dovetail sliding connection on the universal coupling slidably mounts the universal coupling for translation along a mating dovetail surface on a support as the mold halves shift between open and closed positions.
Patent CA-2048883-C (CA)
Title: Method and apparatus for preventing thermal damage of workpieces due to heat developed by a grinding process
Inventor: PICKERT WERNER
IPC: B24B49/14
Filed: 1991-08-09
Granted: 1993-11-30
Abstract: Abstract of the Disclosure The present invention discloses a method and a  device  for  preventing  thermal  damage  of workpieces due to heat developed by a grinding process.  According to the method the temperature increase at the surface being ground is determined and the resulting actual value is compared to a reference value which has been established under the same grinding parameters with a grinding disk that  caused  thermic  damage  to  the reference workpiece.    During  manufacture,  the  grinding process  with  the respective  grinding  disk  is interrupted as soon as a temperature increase has been detected that corresponds to the respective temperature causing thermic damage.  The reference value  is  determined  such  that  it  includes  a certain safety margin.  The determination of the actual  value  and  the  reference  value  may  be accomplished by using geometric deformation of the workpiece that result from the temperature increase due to the grinding process.  The device is characterized by special measuring devices for measuring  the  geometric  deformations  of  the workpieces.
Patent CA-2050088-C (CA)
Inventor: PLESS BENJAMIN D
IPC: A61N1/37
Filed: 1991-08-28
Granted: 1998-08-04
Abstract: An implantable cardiac defibrillator is provided having a battery, capacitive means, means coupled to the battery for charging the capacitive means, and means for coupling the capacitive means to a patient's heart, for delivering a high voltage shock to the heart.  Current leakage from the capacitive means is detected.   If the current leakage exceeds a predetermined amount, charging of the capacitive means is terminated.  In one embodiment, voltage at the patient is directly sensed.   In another embodiment, the voltage across a resistance located in series with the patient is sensed.  In another embodiment, a test charge is provided for a short interval.   The capacitive means is sensed to determine excessive loss of energy after the test charge.  If excessive loss of energy is determined, charging is terminated.
Patent CA-2051570-C (CA)
Inventor: BADESHA SANTOKH S
IPC: G03G15/20
Filed: 1991-09-17
Granted: 1996-03-26
Abstract: A fuser member comprising a supporting substrate having an outer layer of a cured fluoroelastomer and having a thin surface layer of a polyorganosiloxane having been grafted to the surface of said cured fluoroelastomer in the presence of a dehydrofluorination agent for the fluoroelastomer and from a polyorganosiloxane having reactive functionality and the formula:       where R is an alkyl, alkenyl or aryl group having less than 19 carbon atoms or an aryl group substituted with an alkyl or alkenyl group having less than 19 carbon atoms, the functional group A is hydrogen, hydroxy, alkoxy, amino, epoxy, vinyl, acrylic or mercapto, and n is 2 to 350.
Patent CA-2053425-C (CA)
Title: Method and apparatus for gravel packing of wells
Inventor: MCQUEEN ROBERT W
IPC: E21B43/04
Filed: 1991-10-15
Granted: 1994-08-30
Abstract: ABSTRACT       A well penetrator has a housing moveable down a well casing with a radially moveable punch being supported in the housing for movement between retracted and extended positions; a fluid jet is discharged from the outer end of the punch with liquid for the jet coming from a tube fixedly positioned at one end in the housing and held in slightly bowed condition when the punch is retracted to permit movement of the punch to its extended position from its retracted condition without the creation of excessive force on this metal tube.   The jet creates a bulbous drumstick shaped cavity in the earth which is packed with a gravel slurry which hardens and cannot move into the casing due to the bulbous shape of the hardened slurry mass.   Similar procedures are employed using a hose or lance with a nozzle at its outer end; one nozzle embodiment includes radial jets activated to transversely enlarge the cavity at a location spaced from the casing.
Patent CA-2056701-C (CA)
Title: Fet amplifier with gate voltage control
Inventor: FUJITA NORIYUKI
IPC: H03F1/32
Filed: 1991-11-29
Granted: 1996-07-09
Abstract: In an amplifier comprising an FET (11) having a gate electrode and source and drain electrodes and a drain bias circuit (19) controlled by an output power control command to supply a drain bias to the drain electrode, a gate bias circuit (17) is controlled by the output power control command to supply the gate electrode with a controlled voltage as a gate bias,  The gate bias circuit may have a voltage source terminal (25) given a predetermined voltage and comprises a gate bias control device (27) for controlling the predetermined voltage into the controlled voltage in accordance with the output power control command, Preferably, the device comprises an ROM for memorizing gate voltage data and a voltage producing section for converting the predetermined voltage to the controlled voltage in compliance with one of the gate voltage data that is selected by the command,  Alternatively, the device comprises a voltage divider for dividing the predetermined voltage into divided voltages and a selector for selecting one of the divided voltages as the controlled voltage in accordance with the command,
Patent CA-2061659-C (CA)
Title: Media handling system for photoplotter and method of use
Inventor: SCHIMANSKI FREDDIE G
IPC: G03F9/00
Filed: 1992-02-21
Granted: 1997-03-18
Abstract: In a light-tight photoplotter, a system handles sheets of photosensitive media F from an initial supply location through the photoplotter and advances them to final a location.  The system includes a loading device interposed between the supply location and a workpiece support surface on which surface a work operation is conducted on the involved media sheet.  It further in-cludes an off-loading device positioned at the opposite end of the workpiece support surface and the collecting location.  The loading device includes a locating mechanism which allows the involved media to be precisely oriented on the workpiece support surface in registry with two orthogonally oriented coordinated axes.  The system further permits loading and unloading of covered cassettes in daylight without exposing the media supply to light which might otherwise be cast onto it.  The system further provides for the safety locking of stacked media within the photoplotter to prevent inadvertent removal.
Patent CA-2062161-C (CA)
Title: Corn husker and method of husking corn
Inventor: REJSA JACK J
IPC: A01F11/06
Filed: 1992-03-02
Granted: 1997-03-18
Abstract: A device for husking corn ears is disclosed. The device removes the husks and silks and at the same time avoids substantial damage to the kernels.   The device includes a plurality of rollers and drive means which rotate the rollers at selected speeds in selected directions in a selected sequence.  A method of husking corn comprising the steps of cutting the butt end off the ear, and positioning the ear between closely spaced rollers rotating in opposite directions to gently remove the husks is also disclosed.
Patent CA-2062414-C (CA)
Title: A circuit for interconnecting integrated semiconductor circuits
Inventor: HORITA SATOMI
IPC: H03K19/0185
Filed: 1992-03-06
Granted: 1999-03-30
Abstract: An interconnection circuit has a first circuit portion in one of two integrated semiconductor circuits to be connected, for limiting the amplitude involtage of the signal output from the one circuit, and has a second circuit portion in the other one of the two circuits, for discriminating the logic level of the signal input thereinto based on a threshold level set at a level intermediate of the limited amplitude. The amplitude of the logic signal transferred between the two circuits is thus compressed, thereby decreasing a delay time for the signal to transfer between the two circuits.
Patent CA-2066896-C (CA)
Title: Method of forming a welded joint between polyolefinic members
Inventor: STAFFORD TREVOR G
IPC: B29C65/68
Filed: 1992-04-23
Granted: 1995-06-13
Abstract: A polyethylene pipe (10) is jointed by a welded joint to a cross-linked polyethylene coupler (14) which has been expanded to make the coupler heat recoverable. Radiant energy (eg light in the visible spectrum or infra-red light) illuminates the outer surface of the coupler (14) supplied by an array of150W reflector lamps (20). The coupler (14) shrinks and is forced into engagement with the pipe (10) and the pipe (12) to join the pipes. A fusion welded joint is formed between the coupler (14) and each pipe (10), (12). In an alternative a pipe is drawn down and inserted in an aperture through the wall of another pipe. A lamp is inserted in the drawn down pipe and the radiant energy causes the pipe to expand into engagement with the edge of the aperture and to be joined to it by a welded joint.
Patent CA-2076990-C (CA)
Title: Slotted microstrip electronic scan antenna
Inventor: STERN RICHARD A
IPC: H01Q21/00
Filed: 1992-08-27
Granted: 1996-11-19
Abstract: An rf, phase-array, microstrip antenna having a slotted ground plane mounted on one surface of a dielectric substrate.  A network of strip lines  is  mounted on an opposed surface of the dielectric substrate.  The network includes eight parallel rows of coupling strip lines mounted in superposition with eight rows of radiating slots.   The slots in each row form a linear array. The slot spacing in each row is uniform and is different for different rows.  The network further includes an input/output strip line, a plurality of switchable microstrip circulators and a plurality of branching strip lines connected to the circulators in a tree network.  A scanning circuit is connected to the control terminals of the circulators for selectively completing an rf transmission path between the input/output strip line and the coupling strip lines.  Each linear array is directional, having a major lobe, and each major lobe is oriented in a different direction.  Periodic switching by the scanning circuit between the linear arrays causes the antenna to scan a region of space via the different  major lobes.
Patent CA-2077310-C (CA)
Title: Cooling method of continuous casting and its mold
Inventor: NAGAI YOSHITAKA
IPC: B22D11/124
Filed: 1992-09-01
Granted: 1998-07-14
Abstract: A  cooling method and a cooling mold in a continuous casting wherein even if a continuous casting rate is increased, a proper cooling is carried out to prevent a danger of a breakout, so as to improve the stability of the casting and the high quality of an ingot.      A cooling mold comprises water cooling jackets which are provided in the inner part of the mold, a first cooling water jetting mouth which is arranged at a distance of 15 to 40 mm from a meniscus, and a second cooling water jetting mouth which is arranged at an interval of 20 to 45 mm between a contact position of a primary cooling water and an other contact position of a secondary cooling water on an ingot.      By use of the cooling mold wherein a primary and a secondary cooling water impinging angles are respectively set at 15 to 30 degrees and at 30 to 60 degrees, the primary cooling water is impinged from the first cooling water jetting mouth to a molten metal which is cooled with the inner surface of the cooling mold to carry-out a primary cooling, and nextly, the secondary cooling water is impinged from the second cooling water jetting mouth to initial zones of a transition boiling zone and a film boiling zone which are produced with the impingement of the primary cooling water, so that a vapor film generated in the transition boiling zone and the film boiling zone is broken out to provoke a nucleate boiling so as to carry-out a direct secondary cooling with the secondary cooling water.
Patent CA-2092732-C (CA)
Title: Improved screening system and method for screening particulate material
Inventor: GALTON ZANLEY F
IPC: B07B1/46
Filed: 1993-03-26
Granted: 1999-06-29
Abstract: A system for screening particulate material includes replaceable screening modules mounted to a rigid frame by lock pin assemblies.  The lock pins are fixed into housing holes in the frame and interlockingly and removably engage recess apertures in the sidewalls of the screening modules so that the lock pins remainfixed to the frame while allowing the modules to be removed and replaced as required due to wear or to change sieve size.  The lock pin assembly comprising an elongate connector strip having first and second major opposite surfaces, a plurality of lock pins joined to said first major surface, and means joined to the second major surface for connecting the lock pin assembly to said frame.  The lock pins includes means for interlockingly and removably engaging said attachment apertures to maintain the positioning of each screening module on the frame whenthe lock pin assembly is attached to the frame.  The lock pin assembly remains connected within at least one mounting aperture of the frame while allowing removal of a screening module from the frame and positioning of a replacement screening module on the frame.
Patent CA-2093337-C (CA)
Inventor: STUART JAMES F
IPC: F25C5/00
Filed: 1991-10-01
Granted: 2001-03-06
Abstract: Appareil de mise en sachet de glaçons comprenant une zone collectrice de glaçons (10a, 10b) qui comporte un élément d'évacuation d'eau (24), un transporteur à vis de glaçons (16) situé au-dessous de la zone collectrice de glaçons et en communication avec cette zone ainsi qu'avec une zone de sortie et de mise en sachet de glaçons (3) séparée. La zone de sortie et de mise en sachet comprend un fond pourvu d'une fermeture à détection de poids (38) et un élément de traction (26) pourvu d'une surface aspirante (31) pour saisir et déplier un sachet (66) sur la fermeture de manière à recevoir des glaçons livrés par le transporteur. L'appareil de mise en sachet de glaçons est combiné avec un appareil de fabrication de glaçons (2) et une zone de stockage de glaçons en sachets (4).
Patent CA-2096506-C (CA)
Title: Cosmetic composition
Inventor: GIBSON WALTER T
IPC: A61K8/00
Filed: 1993-05-18
Granted: 1999-01-19
Abstract: A composition suitable for topical application to mammalian skin and hair for inducing, maintaining or increasing hair growth comprises a hair growth promoter chosen from glutamic acid derivatives and salts thereof. The composition preferably also comprises an activity enhancer which may be chosen from hair growth stimulants, penetration enhancers and cationic polymers.
Patent CA-2097925-C (CA)
Inventor: RYDIN BJOERN
IPC: D21F1/00
Filed: 1991-12-17
Granted: 1998-12-01
Abstract: 2097925 9211412 PCTABS00014 A woven fabric, such as a base fabric for a press felt, which is designed for a papermaking machine or the like has along each one of two end edges a plurality of seam loops (11-14) to be included in a loop seam to form an endless woven fabric. The fabric is characterised in that there is provided, at least at one of the end edges, at least one string of material, preferably in the form of one or more extra yarn threads (30), extended substantially parallel to the above-mentioned one end edge adjacent the regular thread system (V1-V4) of the fabric. The extra yarn thread or threads (30) are woven to only such portions of the seam loops (11-14) as are facing a first side of the fabric, preferably the paper side thereof. In this manner, there is formed in the seam zone a type of extension of the regular thread system of the fabric, whereby the loop seam is conformed to the rest of the fabric to avoid markings in a paper web at the loop seam.
Patent CA-2105660-C (CA)
Inventor: JOHANSSON LENNART
IPC: E04G21/10
Filed: 1992-03-09
Granted: 2002-05-14
Abstract: A supporting element for use in casting concrete floors on a foundation and comprising a base member (1) and a top mem-ber (2) with a sliding plane surface (3) to allow a concrete-levelling device carried by the supporting element to be moved along the sliding plane surface (3). According to the invention the supporting element comprises two longitudinal form stable side walls (4, 5) defining between them a longitudinal space (6). At least one of the side walls (4, 5) is provided with a plurality of through-holes (7, 8) disposed to permit fresh concrete to flow through into said space (6) during said casting, so that the space is filled with concrete.
Patent CA-2112639-C (CA)
Title: Procede de deshydratation et/ou de fractionnement simultane d'un effluent de gisement petrolier
Inventor: LERMITE CHRISTOPHE
IPC: C10G5/06
Filed: 1993-12-30
Granted: 2004-07-27
Abstract: On décrit un procédé de déshydratation et/ou dessalage et fractionnement simultané d'un effluent de gisement pétrolier contenant de l'huile, du gaz associé et de l'eau pouvant être salée qui comprend: (a) au moins une étape de séparation des phases liquides et gazeuse à la pression P1 d'évacuation du gaz, produisant d'une part une fraction gazeuse G1 qui est évacuée et d'autre part, une fraction liquide L1 qui est envoyée à l'étape (b); (b) au moins une étape de séparation au moins partielle des deux phases liquides en mélange dans la fraction liquide L1, la phase aqueuse étant partiellement évacuée et la phase huile contenant une quantité de phase aqueuse résiduelle étant envoyée à l'étape (c); (c) au moins une étape de distillation opérée à une pression P2 inférieure ou au plus égale à la pression P1 de l'étape (a), dans une zone de distillation C1, ladite distillation étant effectuée en présence de la phase huile provenant de l'étape (b), ladite zone C1 comportant une zone d'échange de chaleur interne et une zone de rebouillage, et permettant de recueillir d'une part une fraction gazeuse G2 et d'autre part une fraction liquide L2, ladite fraction L2 étant constituée d'une phase liquide d'huile et d'une phase liquide aqueuse non miscible avec la phase liquide d'huile; et (d) au moins uneétape de séparation des deux phases liquides en mélange dans la fraction liquide L2, la phase huile étant envoyée dans ladite zone d'échange interne, puis évacuée.
Patent CA-2115879-C (CA)
Inventor: MERCHANT ZOHAR M
IPC: A23C7/04
Filed: 1994-02-17
Granted: 2003-08-19
Abstract: A method of extracting cholesterol from a milk product by shearing a mixture of oil:milk product in a ratio of between about 1:99 to about 1:4 and separating the decholesterolized milk product and oil phases.
Patent CA-2119457-C (CA)
Title: Molding method and cooling apparatus for pressure resisting bottles of synthetic resin
Inventor: IIZUKA TAKAO
IPC: B29C49/08
Filed: 1993-07-20
Granted: 1998-06-30
Abstract: In order to improve the productivity of pressure-resisting bottles by reducing the blow time from 4-5 seconds in a conventional bottle molding method to not more than 3 seconds, and mold pressure resisting bottles free from the occurrence of crazing and bottom-breakage, a biaxially stretched blow molded bottle (1) of a synthetic resin having a big foot type petaloid bottom is produced in a blow time of not more than 3 seconds, and after the product has been released from the mold, the bottom portion (3) has become not higher than 70°C, whereby the shortage of the capability of the metal mold of cooling the bottom portion (3) is supplemented.  This allows both the prevention of the irregular deformation of the central part (6) of the bottom portion, and the molding of the bottom portion (3) of high pressure resisting strength and mechanical strength with a sufficient height H of the central part (6) of the bottom portion ensured.
Patent CA-2119477-C (CA)
Inventor: BURTON ROBERT MATTHEW SR
IPC: D04H1/42
Filed: 1994-03-21
Granted: 2005-11-01
Abstract: A nonwoven fiber and fabric and process for production are provided which have comparable strength characteristics to conventional fibers and fabrics and are of a finer diameter. This is accomplished through a process of producing a nonwoven fabric made from at least one polymer which has a melt temperature between about 410 and 470 ° F (210 and 243 ° C), xylene solubles between about 3.5 and 7.0 %, a melt flaw rate between about 30 and 45, and an isotacticity of at least about 94%, extruding the polymer through fine openings, drawing the polymer to produce fibers of a denier of 1.4 or less, and then depositing the fiberized polymer on a collecting surface to form a web of dispersed fibers.      The nonwoven fabric of this invention may be used in products such as, for example, diapers, feminine hygiene products, adult incontinence products, wound dressings, bandages, sterilization wraps, surgical drapes and wipers.
Patent CA-2122981-C (CA)
Inventor: HOLLAND RONALD BLAND
IPC: G03C3/00
Filed: 1994-05-05
Granted: 2003-06-17
Abstract: A container for a strip (12) of light-sensitive material includes an elongated opening for withdrawing the material from the container. Strips (22) of light-locking material are provided on both sides of the opening, the strips being made from a napped and sheared woven fabric (12, 14). The fabric is dyed, dried, napped, sheared and heat set prior to preparation of the strips. A method of producing such a light-locking material is taught which includes steps of passing the woven fabric multiple times through napping and shearing operations to increase the pile density.