baber/WOPTO huggingface dataset:
Patent CA-2205531-A1 (CA)
Title: Power transmission for mechanical press
Inventor: HAYASHI KEIICHIRO
IPC: B30B1/00
Filed: 1993-03-16
Abstract: A power transmission shaft which transmits rotational energy of a flywheel is divided into a first shaft section adjacent to the flywheel and a second shaft section adjacent to a power take-off gear.  A planetary gearing is arranged between the shaft sections and is adapted to be driven by a servo motor.  A power take-off gear is mounted on an output section of the planetary gearing so as to transmit the power to drives.  The servo motor controls the rotation of the output section of the planetary gearing to vary the rotation of the power take-off gear so that the action velocity of the slide or the like can be freely controlled and press working for different kinds of materials can be carried out.  A load cell on the slide drive for detecting any overload acting on the slide are for providing a sequel to the servo motor.
Patent CA-2205570-A1 (CA)
Title: Pressure injection apparatus for capillary electrophoresis apparatus
Inventor: RECKNOR MICHAEL WILLIAM
IPC: G01N1/00
Filed: 1996-09-19
Abstract: A present invention and method provides a pressure injection apparatus (20) that injects a quantitatively defined volume of liquid sample (21) from a container (22) into a capillary device (23). A servo pressure primary regulator (26) is included which precisely regulates the fluid from a supply pressure (PS) to a substantially constant regulated pressure (PR) in communication with the liquid sample (21) for a predetermined period of time.  A feedback mechanism cooperates with a valving assembly (31) to continuously monitor and adjust the regulated pressure (PR) to be substantially constant and precise for delivery to the container (21).
Patent CA-2211658-A1 (CA)
Title: Seat with surface material having multilayer having different hardness and method for manufacturing the same
Inventor: OGAWA TARO
IPC: B29K105/04
Filed: 1996-10-21
Abstract: A seat for eliminating the occurrence of crease due to a separate structure of a surface skin and a cushion body, providing soft feeling and having a hardness capable of supporting the weight of the sitting person. The seat (1) comprises the surface skin (2) and the cushion body (6, 10) covered with the surface skin. The cushion body has a shape substantially similar to the outer shape of the seat, and comprises a first cushion body (6) as the upper layer which is integral with at least a part of the back of the surface skin (2) and a second cushion body (10) as the lower layer which is integral with the first cushion.
Patent CA-2214380-A1 (CA)
Inventor: KERKAR AWDHOOT VASANT
IPC: C04B24/02
Filed: 1996-02-13
Abstract: L'invention porte sur un adjuvant de ciment composé d'un mélange de certains additifs à base d'oxyalkylène d'éther alkylique inférieur et de certains alkylènes diols, permettant d'obtenir des compositions cimentaires pour mortier ou béton qui empêchent le retrait au cours du séchage tout en permettant un entraînement d'air notable et en améliorant la résistance à la compression.
Patent CA-2215006-A1 (CA)
Title: Dead bolt lock assembly cover
Inventor: MILLER EDWARD
IPC: E05B9/00
Filed: 1997-09-10
Abstract: A dead bolt lock cover for a dead bolt lock assembly comprises a cover and a lock assembly. The cover is sized to enclose the lock casing of the dead bolt lock assembly to prevent unauthorized tampering therewith. The lock assembly fixes the cover to the dead bolt lock base or a separate base member. With the lock assembly, only an authorized person can gain access to the lock casing of the dead bolt lock.
Patent CA-2216501-A1 (CA)
Inventor: MOLITOR ROBERT P
IPC: A63B41/00
Filed: 1997-09-25
Abstract: A ball comprising an interior layer; an intermediate layer having a plurality of spacer panels extending radially outwardly from the interior layer, the panels each having interior edge located adjacent to the interior layer and an exterior edge and lateral side edges therebetween coupled to lateral side edges of adjacent panels in a waffle-like configuration to form a plurality of recesses extending downwardly from the exterior edges to thereby form a grid pattern of recesses with an exterior surface formed from the free exterior edges; and an exterior layer adjacent to the exterior surface of the intermediate layer for entrapping pockets of air within the recesses.
Patent CA-2217978-A1 (CA)
Title: High pressure gas compressor
Inventor: CHEN TZE-NING
IPC: F04B25/02
Filed: 1996-04-26
Abstract: There is presented a gas compressor including a housing (2) defining adjacent first and second chambers (4, 6) in axial alignment, a rod (8) extending through the first chamber and into the second chamber, a tubular projection (10) extending from a first end of the housing into the second chamber, a cylindrically-shaped end portion (14) fixed to the rod and disposed slidably upon the projection and within the second chamber, a piston (16) fixed to the rod and slidably disposed within the first chamber, and conduits for admitting gas to the first chamber, transferring gas from one compression stage to another, and discharging compressed gas from the housing.
Patent CA-2220163-A1 (CA)
Inventor: TAKEUCHI HIDEO
IPC: C11D3/39
Filed: 1997-11-04
Abstract: A hydrogen peroxide-containing bleach liquor containing one or more compounds selected from organic phosphonic acids and their salts; and a water-soluble alkylamide.  A bleaching method comprising using this bleach liquor or this bleach liquor deprived of the water-soluble alkylamide; and performing bleaching with the bleach liquor set at pH 10.0 to 10.7 and heated at 80 to 130°C (110 to 130°C in the absence of the alkylamide).  The hydrogen peroxide-containing bleach liquor achieves an excellent bleaching effect without using a silicic acid-derived substance which causes a silicate-induced trouble.  The bleaching method achieves an unsurpassed bleaching effect by use of the bleach liquor at a temperature in a broad range of 80 to 130°C under lower alkaline conditions while curtailing the diminution of the physical properties of fibers to be bleached, whether cotton or synthetic fibers.
Patent CA-2221405-A1 (CA)
Title: Foam distribution jacket and method of insulating a hot water heater with expandable foam material
Inventor: LEWIS BRIAN M
IPC: F24H1/18
Filed: 1997-11-18
Abstract: A foam distribution jacket (10) for containing an insulating expandable liquid foam mixture (44) prior to expansion into a space (17) between a hot water tank (22) and an outer casing (29) secured thereabout. The jacket (10) comprises a pair of sheets (11-12) which are superimposed to define a bottom trough section (13) having a straight bottom edge (15) and opposed end edges (16). A seal (17) is formed along the straight bottom edge and the opposed end edges to form the trough (13) and to interconnect the sheets (11-12). The pair of sheets (11-12) converge to a crest portion (19) at a top end section (14) thereof. An attachment hole (20) is provided in the crest of an inner one of the pair of sheets (11-12) and is adapted to attach the jacket (10) in a depending manner from a nipple (21) in a top wall (48) of a hot water tank (22). The method of insulating a surrounding space (27) formed between the hot water tank (22) and the outer casing (29) using the foam distribution jacket (10) is also described.
Patent CA-2222515-A1 (CA)
Title: High moisture nutrient formulation for poultry and other animals
Inventor: DIBNER JULIA J
IPC: A23K1/18
Filed: 1996-06-04
Abstract: A nutrient formulation including moisture which is designed for use in poultry and other animals, and a method of feeding it which improves subsequent livability, cumulative feed efficiency and weight gain is disclosed.
Patent CA-2222712-A1 (CA)
Inventor: STANFORTH ROBERT R
IPC: A62D3/00
Filed: 1996-05-15
Abstract: Cette invention concerne un procédé de traitement de matière contaminée par de l'arsenic, lequel procédé fait appel à un composé d'aluminium conjointement avec un tampon alcalin, ce qui a pour effet de stabiliser l'arsenic contenu dans la matière contaminée et de réduire les capacités de lixiviation. Ce composé d'aluminium est, de préférence, un sel d'aluminium soluble tel que du sulfate d'aluminium, tandis que le tampon alcalin est de préférence de l'oxyde de magnésium.
Patent CA-2223476-A1 (CA)
Title: Device in a powder cartridge for a dialysis machine
Inventor: FALKVALL THORE
IPC: B65D41/34
Filed: 1996-07-03
Abstract: A device in a powder cartridge (11) for a dialysis machine (10), having an externally threaded neck (21) which can be closed by means of a screw cap (26). In this screw cap there is provided a normally closed valve (36) which can be adjusted to open position at insertion of the powder cartridge into the dialysis machine. The end wall (28) of the screw cap and the neck (21) have mutually cooperating means (25, 33) which are adapted, when the cap is screwed on, to be interengaged for preventing unscrewing of the cap , and the end wall (28) has a break connection with the rest of the screw cap to allow unscrewing of the cap only under breaking of the connection (29) between the end wall and the rest of the cap in order to separate the end wall from the cap.
Patent CA-2224183-A1 (CA)
Inventor: ENOS SUSAN S
IPC: H01B7/00
Filed: 1996-11-12
Abstract: The invention relates to a process for making metal wire, comprising: (A) forming metal foil (28); (B) cutting (20) said foil (28) to form at least one strand (30) of metal wire; and (C) shaping (22, 24) said strand of wire to provide said strand with desired cross-sectional shape and size. The process is particularly suitable for making copper wire, especially copper wire having a very thin diameter (e.g., about 0.0002 to about 0.02 inch).
Patent CA-2226002-A1 (CA)
Inventor: ONISHI ICHIRO
IPC: B60N2/28
Filed: 1997-12-30
Abstract: A vehicular child safety seat realizes a position in which a seat portion (16) and a backrest (11) are substantially coplanar in a horizontal state when the backrest (11) is reclined backwards at the most reclined state to form a bed plane on which a child is laid, and a position in which the backrest (11) is most upright with respect to the seat bottom (16).  A seat main body 1B is attached to a base body 1C in a rotatable manner.  Thus, a vehicular child safety seat can be provided that can be used constantly throughout the entire childhood for a baby, an infant, and a child of school age.
Patent CA-2226149-A1 (CA)
Title: Method of manufacturing a printed circuit board assembly
Inventor: FORD DOUGLAS MONTGOMERY
IPC: H05K1/02
Filed: 1998-01-05
Abstract: The present invention provides a method of making a printed circuit board assembly.  The method includes the steps of applying a solder paste to a substrate and partially filling vias in the substrate and assembling electrical components thereto.  The method further includes heating the printed circuit board to cause the solder paste to reflow and then cooling the printed circuit board.
Patent CA-2239708-A1 (CA)
Title: Fan filter
Inventor: SOBALA RANDY
IPC: F04D29/70
Filed: 1998-06-05
Abstract: A filter for a fan comprising air permeable material exteriorally embracing the suction portion of said fan.
Patent CA-2239921-A1 (CA)
Inventor: PRUD HOMME DOMINIC
IPC: A45C7/00
Filed: 1998-07-14
Abstract: A convertible backpack which is convertible in size between a full backpack to a belt or waist mounted utility pack. The backpack is comprised of a plurality of end to end interconnected panels foldable about the point of interconnection and with a sheet fabric material extending between the side marginal edges to form the front and sides of the backpack. The upper portion of the backpack is foldable within a lower portion such that the pack may be converted between the full backpack configuration to a utility pack configuration designed to be worn around the waist of the user.
Patent CA-2240105-A1 (CA)
Title: Method for automatic multi-layer welding
Inventor: SANDSTR M LARS
IPC: B23K9/127
Filed: 1996-12-20
Abstract: In a method for automatic multi-layer welding of a joint (33) formed by two joint surfaces according to which method the contour of the joint in a number of cross sections is established by means of a sensor (20) emitting signals representative of the contour of the current cross section of the joint. After evaluation, said signals control the deposition of the weld beads by means of a continuously fed electrode (32) which is directed towards a welding zone in the joint.
Patent CA-2240248-A1 (CA)
Title: Seat, in particular office swivel chair
Inventor: UHLENBROCK JOHANNES
IPC: A47C1/032
Filed: 1998-06-10
Abstract: The invention relates to a seat (1), in particular an office swivel chair comprising a foot (2) with a centre column (22) extending upwards therefrom wherein the centre column (22) may be variable in length and/or spring mounted, a seat carrier (3) secured at the upper end of the centre column (22), a seat top (4) pivotable around a horizontal axis (43) close to the front edge of the seat top, connected with the seat carrier (3), and biased by a spring arrangement with an upwards directed force, and a back rest (5) attached at at least one upwards extending lever (6) which is articulatedly connected with the seat carrier (3) at a first link point (63) under the seat top (4), and spaced therefrom is articulatedly connected with the underside (42) of the seat top (4) at a second link point (64) wherein both link points (63, 64) comprise swivelling axes in parallel with the seat top swivelling axis (43). The seat according to the invention is characterized in that the length (L) of the lever (6) between the first link point (63) and the second link point (64) is variable by displacing the first link point (63) and/or the second link point (64) in the direction of the lever (6).
Patent CA-2240552-A1 (CA)
Inventor: FIORITTO BRIAN
IPC: B60J10/08
Filed: 1998-06-12
Abstract: A door seal for an automotive vehicle is provided that requires low insertion effort and high extraction effort, that makes correct insertion easier, and that provides a complete seal even in tight corners without adversely affecting door closing effort, and also provides cosmetic members to hide.  The seal attaches to a weld flange located around the perimeter of a body side door opening of an automobile, and has such features as a channel with hinged gripping fingers and digits, an anti-rotation member, a bulb shaped hollow sealing member, interior trim gap hiding lip and weld hiding member.
Patent CA-2242362-A1 (CA)
Title: Method and apparatus for controlling body temperature
Inventor: GINSBURG ROBERT
IPC: H01L51/00
Filed: 1997-01-07
Abstract: The present invention provides a method and apparatus for controlling the internal body temperature of a patient. According to the present invention, a catheter (20) is inserted into a large blood vessel of a patient. By selectively heating or cooling a portion (15) of the catheter lying within the blood vessel, the patient's body temperature may be increased or decreased as desired. The invention will find use in treating undesirable conditions of hypothermia or hyperthermia, or for inducing a condition of artificial hypothermia when desired. The method and system further provide for the cooling of initially hyperthermic patients whose blood or body temperature has been cooled below the desired target temperature.
Patent CA-2246322-A1 (CA)
Inventor: BOUSKA ANNETTE G
IPC: H04R17/00
Filed: 1997-02-18
Abstract: L'invention a trait à un tampon (101) permettant la transmission d'ondes acoustiques entre une sonde ultrasonore (107) et une surface cible (105). Ce tampon (101) comporte une première couche (102) pourvue d'une première partie poreuse délimitant une série de pores la traversant, ces pores étant d'une première dimension. Le tampon (101) comporte, en outre, une seconde couche (103) pourvue d'une première partie poreuse délimitant une série de pores la traversant, ces pores étant d'une seconde dimension. La seconde couche (103) se rattache à la première (102) de manière à constituer un espace (104) entre elles. La première partie poreuse de la première couche (102) repose sur la première partie poreuse de la seconde couche (103). Un milieu de couplage ultrasonore (100) est mis en place dans l'espace (104) situé entre la première couche (102) et la seconde (103). Les molécules du milieu de couplage (100) sont d'une taille inférieure ou sensiblement égale à celle des pores de la première et de la seconde couche.
Patent CA-2246532-A1 (CA)
Title: Perceptual audio coding
Inventor: NAJAFZADEH-AZGHANDI HOSSEIN
IPC: G10L19/02
Filed: 1998-09-04
Abstract: A method and apparatus for perceptual audio coding. The method and apparatus provide high-quality sound for coding rates down to and below 1 bit/sample for a wide variety of input signals including speech, music and background noise. The invention provides a new distortion measure for coding the input speech and training the codebooks, where the distortion measure is based on a masking spectrum of the input frequency spectrum. The invention also provides a method for direct calculation of masking thresholds from a modified discrete cosine transform of the input signal. The invention also provides a predictive and non-predictive vector quantizer for determining the energy of the coefficients representing the frequency spectrum. As well, the invention provides a split vector quantizer for quantizing the fine structure of coefficients representing the frequency spectrum. Bit allocation for the split vector quantizer is based on the masking threshold. The split vector quantizer also makes use of embedded codebooks. Furthermore, the invention makes use of a new transient detection method for selection of input windows.
Patent CA-2246616-A1 (CA)
Inventor: WALL WAYNE
IPC: H04L47/32
Filed: 1997-03-17
Abstract: A packet-switched network comprises a network manager and means for notifying the network manager of discards due to congestion.
Patent CA-2247147-A1 (CA)
Title: Improvements in or relating to a collapsible trolley
Inventor: LOWENSTEIN FRANK
IPC: A45C5/14
Filed: 1997-02-24
Abstract: A luggage trolley comprises an item of luggage (1) with wheels (2, 3) at the lower end which permit it to be towed when tilted by a telescopable handle (4) at the upper end. A generally rigid housing (8) is secured to the luggage for containing or including the handle and at least one telescopable member (5, 6) which is thereby substantially protected from mechanical damage by the housing.
Patent CA-2247217-A1 (CA)
Title: A device for creation of an oxidation and precipitation zone or a reduction zone in an aquifer
Inventor: MARTINELL RUDOLF H
IPC: B09C1/08
Filed: 1996-02-21
Abstract: The invention refers to a device for creating in an aquifer an oxidation and precipitation zone or a reduction zone between a number of injection wells arranged around one or more extraction wells for purified water, said injection wells each comprising an outer water-pervious tube (1). For preventing such a device from being clogged the invention suggests that at the upper end of the outer tube (1) is mounted a circulation vessel (2) from which extends downwardly within the outer tube (1) a first conduit (3), ending at the height of the upper portion of the aquifer and provided with a pressure inlet means (5) so as to form an upper ejector, and a second conduit (4), which at its lower end supports an externally sealingly mounted balloon body (7), which is inflatable into sealing engagement with the inner surface of the outer tube (1), said second conduit closely above said body carrying a pressure inlet means (6), so as to form a second ejector.
Patent CA-2251119-A1 (CA)
Inventor: SCHIMION WERNER
IPC: C25D7/06
Filed: 1998-10-22
Abstract: A current roller for an electrolytic strip coating plant includes a roller wall having an inner wall surface and an outer wall surface and two essentially cylindrical base bodies having cylindrical walls and filling out the roller wall, wherein the base bodies have sides facing each other and facing away from each other, wherein the roller wall and the base bodies are releasably connected to each other.
Patent CA-2251395-A1 (CA)
Title: Moulded transducer
Inventor: HARE RONALD GREGORY
IPC: H04R17/00
Filed: 1998-10-26
Abstract: An electro-acoustic transducer is manufactured by forming a transducer  assembly at  least  one piezoelectric  element, electrodes  contacting the  element,  and acoustic  loading blocks,  and applying  successive  superposed mouldings  of material  of  differing  acoustic  properties  around  said transducer  assembly  to  provide  the  transducer,  while maintaining  electrical  coupling  between  the  transducer assembly and the exterior of the transducer, the mouldings providing at least one acoustic matching layer covering a radiating  surface  of  the  transducer  assembly,  a  casing surrounding the remainder of the transducer assembly,  at least one layer of acoustic isolating material between the casing and the transducer assembly.  The successive layers may either be moulded in situ, or moulded separately and then assembled.
Patent CA-2251707-A1 (CA)
Title: Technique de controle de la course de travail d'un dispositif mu par un cylindre hydraulique et systeme correspondant
Inventor: LAAKSONEN JARI
IPC: F15B15/28
Filed: 1997-01-20
Abstract: L'invention a trait à une technique et au système correspondant permettant, d'une part, de contrôler avec précision la course de travail d'un appareil entraîné par un cylindre hydraulique, la course d'une scie à débiter ou d'une abatteuse-tronçonneuse par exemple, et, d'autre part, de prévoir exactement et sûrement le moment où s'achève cette course. Cette invention peut notamment servir à synchroniser le marquage coloré de rondins à tronçonner comme à stopper la scie en fin de course. L'une des caractéristiques de l'invention réside dans le fait que l'huile refoulée du cylindre hydraulique durant la course de travail est amenée dans un moteur hydraulique (30). Les rotations ou les rotations partielles du moteur hydraulique (30) sont enregistrées et transformées en impulsions électriques par un transducteur inductif (24) ou un dispositif similaire.
Patent CA-2251915-A1 (CA)
Title: Handover in a mobile communication system
Inventor: AALTO RISTO
IPC: H04W28/04
Filed: 1998-02-11
Abstract: The invention relates to a handover method in a mobile communication system in which error correction of a radio signal can be arranged with different protection levels. The method comprises measuring the signal level and/or quality of neighbouring base stations (BTS) at a receiver of a mobile station (MS), comparing the measurement results thus obtained and other variables of the connection with handover criteria, and performing a handover from the source cell to the target cell, when the pre-set handover criteria are met.  The method of the invention is characterized by determining at least one error connection possible for the connection in a potential target cell for the handover, determining at least one handover criterion on the basis of the determined error correction of the potential target cell, and setting the error correction of the connection in the target cell (BTS2) as said error correction of the base station of the target cell. The invention further relates to a mobile communication system for performing handover.