baber/WOPTO huggingface dataset:
Patent CA-2053533-C (CA)
Title: Information recording unit, apparatus and method for information recording/reproduction in conjunction with a scanning tunneling microscope
Inventor: KAWADA HARUKI
IPC: G01Q10/00
Filed: 1991-10-16
Granted: 1999-08-03
Abstract: A method and apparatus for recording information on an information recording medium and/or reproducing information from the recording medium, for use in conjunction with a scanning tunneling microscope. Probes for recording and/or reproducing information and a support for supporting the probes are arranged so that the probes are positioned to face the information recording medium. The support and the information recording medium are relatively moved by sliding on sliding surfaces thereof. The distance between the support and the recoding medium is roughly set by projections formed between the support and the recording medium, and is finely adjusted during operation by a mechanism for moving the probes.
Patent CA-2055686-C (CA)
Inventor: VON KALER ROLAND L
IPC: F16H3/083
Filed: 1991-11-15
Granted: 1995-05-09
Abstract: The present invention is an improved key for an in-line transmission.  The key is located within a channel in the shift shaft and selectively engages keyways of gears disposed about the shift shaft.  A shift fork and collar axially move the key within the shift shaft by engaging and moving the base of the key.  The key includes a shoulder which connects the head and the shank portion of the key, with the shoulder being thicker than the shank to cause more of the key to be supported within the shift shaft channel and thereby the key is better able to withstand the shearing forces which result from the rotational coupling of the shift shaft and the gears.  The shoulder includes the portion of the key which extends out of the channel to the keyway and connects with the head, and which also faces the same direction as the head.
Patent CA-2065027-C (CA)
Title: Impeller, in particular for hairdressing appliances
Inventor: VIETH ALFRED
IPC: F04D29/32
Filed: 1990-08-06
Granted: 1995-03-14
Abstract: In an impeller (10) of an axial fan, in particu-lar for appliances for drying and dressing hair, adja-cent blades (11, 12) completely overlap each other over the radial extent of the blades in the edge re-gions of the blades. To ensure that the injection-moulded impeller is ejected from the mould, the angle of opening (26) is less than or equal to the angle of rotation (25).
Patent CA-2070891-C (CA)
Title: Binary weighted digital flow regulating system
Inventor: POWELL TERRY D
IPC: B60T13/66
Filed: 1992-05-01
Granted: 2002-10-29
Abstract: A binary weighted digital fluid flow regulating arrangement including a microprocessor responsive to a brake command controller for initiating the energization and deenergization of select ones of a plurality of parallel connected electromagnetic flow control valves which have orifice diameters that are successively proportioned by a power of two.
Patent CA-2072316-C (CA)
Title: Superconductive magnetically levitated railway, and power-feed system therefor
Inventor: FUJIE JUNJI
IPC: B60L13/04
Filed: 1992-06-25
Granted: 1997-05-20
Abstract: A superconductive magnetically levitated railway is provided with six phases of propulsion-levitation-guidance ground coils arranged on both side walls of a track, and with a pair of superconducting magnets, which are mounted on the vehicle, corresponding to the six phases of the ground coils.  The ground coils are a U-phase coil, a negative W-phase coil, a V-phase coil, a negative U-phase coil, a W-phase coil and a negative V-phase coil arranged successively at a 60°  pitch along both side walls of the track.  As a result, higher harmonics of the magnetic field produced by the propulsion-levitation-guidance ground coils can be reduced.  In addition, the number of layers of the ground coils can be reduced one and the number of ground coils can be decreased.
Patent CA-2074481-C (CA)
Title: Ventilatory instrument for measuring peak expiratory flow
Inventor: STOCKWELL JAMES ALFRED
IPC: A61B5/08
Filed: 1991-01-21
Granted: 1996-03-12
Abstract: A peak flow meter has a flexible resilient vane (15) which is rigidly mounted by one end and which has its other end en-gaged with a slider indicator (17) which slides in a slot (16) formed in a curved wall of the casing. In use the human subject blows into the casing through a mouthpiece (14). The vane (15) is bent by the expiration which vents through the part of the slot (16) between the slider (17) and the mouthpiece (14). The slider (17) stops at the furthest point from the mouthpiece (14) to which it is moved by the vane (15) and that point is an indication of the peak expiratory flow of the human subject.
Patent CA-2075029-C (CA)
Title: Shipping carton, dunnage and method
Inventor: CARROLL HAZEN J
IPC: B26F1/12
Filed: 1992-07-30
Granted: 1997-12-23
Abstract: A storage or shipping carton for automotive parts or the like has disposed therewithin layers of resilient tubular dunnage having part configured cut outs  in  the  side  walls.     The  dunnage  extends transversely of the carton between two of the side walls while the parts  extend  transversely of  the dunnage between the other two side walls.  The tubular dunnage is preferably formed of low density polyethylene and the notches in the dunnage are formed by flattening the dunnage and severing the side walls thereof while in the flattened condition and then reopening the dunnage to its normal configuration.
Patent CA-2077143-C (CA)
Title: Remote controlled steering mechanism
Inventor: MACHEN EDMUND H
IPC: A63B55/60
Filed: 1992-08-28
Granted: 1995-01-03
Abstract: A steering mechanism for a remotely-controlled golf caddie having a drive motor coupled to a steering assembly by a non-positive coupling. The non-positive coupling between the drive motor and the steering assembly allows the steering assembly to disengage from the drive motor when the caddie runs into an obstruction. Also, the steering mechanism uses a potentiometer assembly for allowing the caddie to center itself after receiving a command to turn left or right.
Patent CA-2077312-C (CA)
Inventor: DALY JOHN
IPC: B01J49/00
Filed: 1992-09-01
Granted: 2000-02-08
Abstract: High pressure boiler condensate returns are polished and softened with a macroreticular cation exchange resin, and the resin is regenerated with a readily ionizable organic acid salt of a relatively low volatility amine corrosion inhibitor.
Patent CA-2080894-C (CA)
Title: Process for isomerizing 1,1,2-trifluoro-1,2-dichloroethane to 1,1,1-trifluoro-2,2-dichloroethane
Inventor: CUZZATO PAOLO
IPC: C07C17/00
Filed: 1992-10-19
Granted: 2005-07-26
Abstract: 1,1,2-trifluoro-1,2-dichloroethane (A123a) is isomerized to 1,1,1-trifluoro-2,2-dichloroethane (A123) by contacting it with AlF3 at temperatures ranging from 180° to 400°C. Advantageously, it is operated with mixtures of A123a and/or other chlorofluorocarbons coming from the preparation of A123 by hydrofluorination of perchloroethylene.
Patent CA-2080956-C (CA)
Title: Apparatus for reducing interrupt retry attempts
Inventor: BARLOW GEORGE J
IPC: G06F15/177
Filed: 1992-10-20
Granted: 1997-08-19
Abstract: A multiprocessor computer system having a first processor having a first interrupt mechanism for generating interrupt requests, a second processor having a second interrupt mechanism, and a system bus for communicating interrupt requests from the first processor to the second processor.  The second interrupt mechanism is responsive to an interrupt request by generating an acknowledge response on the system bus when the second processor accepts the interrupt request and generating a not acknowledge response on the system bus when the second processor contains a previous and pending interrupt request of higher level and refuses the interrupt request.  The second interrupt mechanism is responsive to the completion of servicing of an interrupt request by the second processor by placing on the system bus an interrupt completed command, which includes an address identifying the second processor and a code indicating that the second processor has completing servicing an interrupt request.  The first processor includes an interrupt retry means, which includes a refused interrupt register means responsive to a not acknowledge response from the second processor in response to an interrupt requested from the first processor for storing the channel number of the second processor, and level monitor logic connected from the system bus.  The level monitor logic detects the occurrence of an interrupt completed command on the system bus, compares the address in the interrupt completed command to a second processor identification stored in the refused interrupt register means, and generates a retry interrupt output to the first processor when the address in the interrupt completed command corresponds to a second processor identification stored in the refused interrupt register means. The first processor is responsive to an interrupt retry output from the level monitor means by retrying the corresponding previously refused interrupt request.
Patent CA-2081763-C (CA)
Title: Mold device for forming concrete pathways
Inventor: HUPP JACK T
IPC: E01C9/00
Filed: 1992-10-29
Granted: 1997-02-04
Abstract: The present invention is directed to a apparatus for forming concrete pathways. The apparatus comprises a mold incorporating a plurality of openings for receiving concrete therein. The mold openings define separate and distinct concrete cavities. Concrete pathways, are formed by placing the mold of the invention on a surface for receiving the concrete in the concrete cavities. Upon removal of the mold, the concrete segments retain the shape of the mold cavities and are slightly separated from each other. The procedure is repeated to form a pathway of a desired length and configuration.
Patent CA-2082574-C (CA)
Inventor: MUELLER STEFAN
IPC: A01N55/00
Filed: 1992-11-10
Granted: 2003-05-13
Abstract: 3-Isoxazolylphenyl compounds Ia and Ib (see Formulas Ia and Ib) where R is halogen; alkyl; haloalkyl; alkoxy; haloalkoxy; alkenyl; haloalkenyl; unsubstituted or substituted phenylethenyl; alkynyl; cycloalkyl; aryl; hetaryl; CO2R5 or CONR7R8, R6 is hydrogen, alkyl, cycloalkyl or benzyl;      R7 and R8 are each hydrogen, alkyl, cycloalkyl or benzyl or, together with the nitrogen atom to which they are bonded, form a heterocyclic radical; n is 0, 1 or 2;      R1 is halogen or alkyl;      R2 is hydrogen; alkyl; alkenyl; alkynyl or cyano;      R3 and R4 independently of one another are each unsub-stituted or substituted alkyl, alkenyl, cycloalkyl, phenyl, naphthyl, pyridyl or pyrimidinyl; or R3 and R4 together form unsubstituted or substituted alkylene;      R5 is hydrogen; unsubstituted or substituted alkyl or one of the groups stated fox R3;     X is CH2, O, S or NR9 and R9 is hydrogen, alkyl, cycloalkyl, alkenyl, alkynyl or unsubstituted or substituted benzyl, processes for their preparation, agents containing them and the use thereof.
Patent CA-2093841-C (CA)
Title: Color film
Inventor: EDGAR ELBERT D
IPC: H04N1/00
Filed: 1993-04-13
Granted: 1996-12-03
Abstract: A method,  system and process for a universal,  multispeed film for use in conjunction with the production of a digital image by scanning an image on the film as it develops and creating a digital representation of the image on the film is disclosed. Unlike conventional colour film that typically has six layers but only three standard dye colours, the film of the subject invention assigns six dye colours among the layers. The processed film is scanned with a separate colour for each dye,  giving for each pixel  an equation of  six variables. Solving this matrix separates the six dye images. Then,  the dye image or blend is selected for each pixel which  yields  the  most  grainless  representation.   The resultant image is superior to current technology films over a wide range of effective film speeds.
Patent CA-2097738-C (CA)
Inventor: VANGOOL WILLIAM
IPC: E04B1/19
Filed: 1993-06-04
Granted: 1997-06-03
Abstract: There is provided an improved separable joint for arm and hub constructions for structural frameworks. The separable joint comprises a hub having sides and opposite ends. A plurality of spaced, longitudinal, parallel apertures extend end to end through the hub positioned towards the sides of the hub. Parallel, longitudinally extending slots extend between the sides of the hub and central portions of the apertures. An elongated spline is provided having ends and sides. A keyway slot extends from end to end through the spline and opening to one side. The sides of the spline are contoured to conform to the sides of the corresponding apertures in the hub and to be releasable received therein with the keyway slot opening and the hub aperture slot aligned adjacent to each other. The spline has secured in its keyway slot a co-operative interlocking key formed in an end of a corresponding arm. Securing means are provided at the ends of the hub to prevent accidental removal of the splines and associated arms when in position in the hub apertures.
Patent CA-2101354-C (CA)
Title: Modular jack
Inventor: OKADA MASANOBU
IPC: H01R12/71
Filed: 1993-07-27
Granted: 2000-12-19
Abstract: A modular hack which is made thin. A hole is pierced in a flat :member and a box member is disposed at an opening on one side of the hole. A modular plug is inserted through an opening opposite to the opening where the box member is located. At that time, the insertion direction is regulated by the inner walls of the hole or the inner walls of the box member, push is stopped by a bottom portion of the box member, return is stopped by a hook portion located near the opening through which the modular plug is inserted, and an electrode section is electrically connected to the modular plug. Springs enable only one action to be required.
Patent CA-2101580-C (CA)
Title: Machine pour l'epluchage de salades
Inventor: BEAUMONT LAURENT
IPC: B26D3/00
Filed: 1993-07-29
Granted: 2003-12-30
Abstract: Machine comportant des chariots (2) pourvus chacun d'une tête montée à rotation et supportant une pince (5) pour l'accrochage d'une salade à l'état sus- pendu sous ce chariot, un chemin de transfert en cir- cuit fermé (4) sur lequel circulent les chariots, ma- chine caractérisée en ce que la pince comprend, d'une part des aiguilles mobiles par coulissement entre une position sortie pour l'accrochage d'une salade et une position escamotée à l'intérieur de la tête, d'autre part des crochets mobiles par pivotement à l'extrémité de la tête entre une position écartée et une position rapprochée pour l'accrochage de la salade, ces aiguil- les et crochets étant placés en position active pour l'accrochage d'une salade en des zones différentes du chemin de transfert.
Patent CA-2107239-C (CA)
Title: Method for recycling plastic coated paper product waste and polymeric film
Inventor: BROOKS JOE G
IPC: D21B1/32
Filed: 1992-03-20
Granted: 2004-05-25
Abstract: A method for reclaiming plastic from plastic waste material, including hydropulper or polymeric film and contaminants such as cellulosic fiber, adhesive labels, paper, dirt, or organic material.  The plastic waste material is reduced in size to particles having a maximum dimension ranging between about 1 inch and 8 inches. A  portion of the contaminants, including cellulosic fiber is mechanically separated from the plastic waste. Another portion of the contaminants is separated from the plastic by washing. The particle size of the plastic is further reduced to a maximum dimension of about 1/2 inch while in a wet slurry. Flotation with agitation further separates cellulosic fiber from plastic. The plastic is dewatered and dried to a moisture content of less than about 10 weight percent. The dried plastic is then rolled into pellets in a controlled low heat pelletizer.
Patent CA-2107268-C (CA)
Title: Ultra high-strength hydraulic cement compositions
Inventor: YONEZAWA TOSHIO
IPC: C04B28/02
Filed: 1993-09-29
Granted: 2002-10-15
Abstract: Ultra high-strength hydraulic cement compositions with extremely low water-to-cement ratio of 10-30% and having high fluidity and improved capability of preventing slump loss, from which high-quality ultra high-strength hardened concrete and mortar can be obtained with superior workability, contain a binder composed of cement or a mixture of cement and a microscopic powder admixture, aggregates, water and a cement dispersion agent composed of water-soluble vinyl copolymers obtained by aqueous solution radical polymerization of four or five specified kinds of monomers at a ratio within a specified range. The unit content of the binder is 400-1300kg/m3, the water-to-binder ratio is 10-30% and the content of cement dispersion agent is 0.1-2.0 weight parts for 100 weight parts of the binder.
Patent CA-2108728-C (CA)
Inventor: OKAMURA TAKAAKI
IPC: B32B15/08
Filed: 1993-10-19
Granted: 2001-02-13
Abstract: A triple layered thermoplastic resin laminated metal sheet for a can stock having excellent flavour retention of packed foods and drinks, excellent formability, excellent adhesion of the thus laminated resin layer to a metal sheet and excellent denting resistance, particularly excellent denting resistance at a low temperature, which comprises formation of a triple layered thermoplastic resin layer wherein a polycarbonate resin layer is sandwiched between polyester resin outer and inner layers on one or both sides of a metal sheet covered with a single layer of hydrated chromium oxide or a double layer consisting of an upper layer of hydrated chromium oxide and a lower layer of metallic chromium by using conventional film laminating, extrusion coating or the combination of these techniques.
Patent CA-2114617-C (CA)
Inventor: DRURY LEE
IPC: H02G5/04
Filed: 1992-08-05
Granted: 1997-06-24
Abstract: A flexible conductive track (1), comprises a flexible insulative plastics housing (2) of constant cross section. This housing is substantially rectangular in shape with three recesses (3) open to one side of the housing. A conductor (4) in the form of a copper wire is held in the bottom of each recess. Affixed to the wire (4) along the whole length of the wire is a conductive blade (5) which is conductively bonded to the wire (4) to form a double spring blade contact (5). A recess (16) is located on the other side of the housing (2). When the track (1) is bent laterally the recess (16 and 3) collapse to assist in the bending.
Patent CA-2116812-C (CA)
Title: Rare earth mineral pigments, preparation method and uses thereof
Inventor: CHOPIN THIERRY
IPC: C09C3/04
Filed: 1994-03-02
Granted: 2000-06-13
Abstract: New coloured (green) inorganic pigments which are characterised in that they include mixed oxides corresponding to the formula R2MxM'yO5 in which R denotes at least one element taken from the group consisting of yttrium and the rare earths of atomic numbers between 62 and 71 inclusive, M and M' are identical or different and denote at least one element chosen from metallic elements exhibiting at least one valency state +2, and x and y are two numbers, preferably integers, whose sum is equal to 2. Process for obtaining these pigments, which consists (i) in preparing a mixture, preferably aqueous, containing soluble salts of the elements R, M and M' in the required stoichiometric proportions, (ii) in drying the mixture obtained, and then (iii) in calcining the dried product and finally, optionally, (iv) in grinding and/or disintegrating the calcined product. Finally, use of the said pigments for colouring various materials such as plastics, ceramics and others.
Patent CA-2119674-C (CA)
Title: Enantiomeric resolution of 4-(3,4-dichlorophenyl)-3,4-dihydro-1(2h)-naphthalenone
Inventor: BROSE DANIEL J
IPC: C07B57/00
Filed: 1994-03-23
Granted: 1998-04-14
Abstract: There is disclosed a method of separating enantiomers of 4-(3',4'-dichlorophenyl)-3, 4-dihydro-1(2H)-naphthalenone comprising contacting the same with a homogeneous or nonhomogeneous liquid mixture of solvent and water, the mixture containing substantially pure and unsupported gamma-cyclodextrin or its derivatives.  Also disclosed are methods of further enantiomerically enriching solid mixtures obtained from the enantiomer separation method and further extracting one enantiomer by solvent extraction of the solid mixtures obtained.
Patent CA-2120933-C (CA)
Title: Apparatus for drying a web
Inventor: SKAUGEN BORGEIR
IPC: D21G9/00
Filed: 1992-11-13
Granted: 1997-04-08
Abstract: A paper machine drying apparatus is disclosed for drying a first and a second side of the web. The apparatus includes a first single tier drying section for drying only the first side of the web (12). The first drying section includes a first plurality of dry-er cylinders (58, 63) for drying the first side of the web, and a first plurality of vacuum rolls disposed in close proximity between adjacent dryer cylinders of the first plurality of dryer cylinders. A second single tier drying section for drying only the second side of the web (12) in which the drying section includes a second plurality of dryer cylinders (94-99) for drying the second side of the web, such cylinders (94-99) being disposed immediately downstream relative to the first drying section. A second plurality of vac-uum rolls are arranged such that each vacuum roll is disposed in close proximity between adjacent dryer cylinders of the second plurality of dryer cylinders (94-99). At least one of the vacuum rolls of the first and the second drying sections have a smaller di-ameter than the diameter of any of the dryer cylinders of the first and second drying sections, and the second drying section is a displaced downstream mirror image of the first drying section.
Patent CA-2132476-C (CA)
Inventor: FLETCHER WADE D
IPC: B65D33/00
Filed: 1994-09-20
Granted: 1999-06-29
Abstract: T-SHIRT TYPE PLASTIC BAG   FOR CARRYING HOT FOOD               Abstract Of The Invention A T-shirt type plastic bag is adapted for carrying hot foods from fast food restaurants.  The bag includes front and rear wall sections, gussetted side wall sections integrally connecting the front and rear wall sections together and means connecting the bottoms of the front, rear and gussetted side wall sections together to define a closed bottom.  At least a part of the front and rear wall sections are open at the tops to define a mouth portion.  Laterally spaced handles are integral with the front, rear and gussetted side wall sections and extend upwardly from opposed sides of the mouth portion.  Apertures extend through at least one of the wall sections for providing a venting air flow from the outside of the bag and through the inside of the bag when the bag is carrying hot food.
Patent CA-2137702-C (CA)
Title: Injection molding nozzle with separable core and one-piece collar
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/20
Filed: 1994-12-07
Granted: 2004-11-02
Abstract: An injection molding nozzle with an elongated body removably seated in a one-piece outer collar. The outer collar has a circular insulation flange which seats in the mold to locate the nozzle. The elongated body has an electrical heating element coiled around a central melt channel. Terminal portions of the heating element extend outwardly through a U-shaped opening in the outer collar into a ceramic connector. The connector is secured in place by an inner lip which slides into a groove around the U-shaped opening.
Patent CA-2142794-C (CA)
Inventor: ANTUNES ERNESTO
IPC: H04B1/7156
Filed: 1995-02-17
Granted: 2001-03-13
Abstract: A wireless Local Area Network (LAN), in which each wireless adapter includes a controller and a transceiver which arc located a finite distance from each other. Each controller and transceiver has their own hop clock and hop table. A data interface which includes a command set is defined between the controller and the transceiver. The command set includes commands and procedures for synchronizing the hop clocks and hop tables between the controller and the transceiver.