baber/WOPTO huggingface dataset:
Patent CA-2034935-C (CA)
Title: System for the transmission of data packets
Inventor: INGLIS ANDREW
IPC: H04L12/28
Filed: 1991-01-25
Granted: 2000-02-22
Abstract: A system for the transmission of data packets of mutually equal durations from a plurality of substations to a main station via one or more transmission channels, the main station comprising transmission means for transmitting on each transmission channel a synchronising signal which indicates the beginning of a frame, programmable memory means for storing, in respect of each transmission channel, a maximum link establishment time and a maximum link disestablishment time both of which being a characteristic of the transmission channel from the substations to the main station, the substations each comprising programmable memory means for storing said maximum link establishment times and said maximum link disestablishment times, means which on reception of the synchronising signal on a transmission channel subdivide the frame into a number of consecutive time slots of mutually equal durations at least equal to the sum of the duration of a said data packet, said stored maximum link establishment time and said stored maximum link disestablishment time of that transmission channel, means for transmitting a said data packet, if so desired, by selecting a time slot from the sequence of time slots and transmitting the data packet within a period within the selected time slot, the period beginning at a time equivalent to said stored maximum link establishment time of that transmission channel after the beginning of the selected time slot and ending at a time equivalent to said stored maximum link disestablishment time of that transmission channel before the end of the selected time slot.
Patent CA-2038510-C (CA)
Title: Process for producing oxygen enriched product stream
Inventor: HIROOKA EIJI
IPC: C01B13/02
Filed: 1991-03-18
Granted: 2000-11-21
Abstract: A two bed pressure swing absorption process is disclosed having high yield and high production rate. The process utilizes fine or normal size zeolite sieve material and relatively short cycle times. A power saving is obtained by sequencing the various steps of the process to provide continuous use of a vacuum pump.
Patent CA-2040969-C (CA)
Title: Repopulation of macrophages and granulocytes using transforming growth factor-beta
Inventor: BURSUKER ISIA
IPC: C12N5/0789
Filed: 1991-04-23
Granted: 1996-10-15
Abstract: Treatment with Transforming Growth Factor-.beta. alone or in combination with a Colony Stimulating Factor therapeutically increases the number of granulocytes and monocyte/macrophages in mammals.
Patent CA-2044879-C (CA)
Title: Method and apparatus for low pressure casting of metals using blind sand mould and mould for use thereof
Inventor: SOURLIER PASCAL
IPC: B22C9/02
Filed: 1991-06-18
Granted: 1996-02-06
Abstract: At each stage of the mould (4), the sum of the areas of the inlet cross-sections of the intermediate channels (30A, 30B) which feed the casting runners (32A, 32B) is markedly smaller than the area of the cross-section of the casting pool. Application to the multi-stage casting of thin-wall castings. <IMAGE>
Patent CA-2048370-C (CA)
Title: Power converting apparatus
Inventor: TOKIWA YUKIO
IPC: H02M7/17
Filed: 1991-08-02
Granted: 1995-12-12
Abstract: A power converting apparatus comprises self-commutated converter, fault current restricting device, fault detector, and cutoff circuit.  Self-commutated converter converts AC power supplied from an AC power system into DC power and supplying the DC power to a common DC circuit, and for converting DC power supplied from the DC circuit into AC power and supplying the AC power to the AC power system.  The fault current restricting device is inserted between the self-commutated converter and the DC circuit, and includes a diode provided to permit a DC circuit current to flow from the self-commutated converter to the DC circuit, and a series circuit having a reactor and a DC power supply and connected in parallel to the diode.  The fault detector detects a fault current generated when self-commutated converter is short-circuited.  When the fault detector detects a short circuit occurring in self-commutated converter, the cutoff circuit cuts off power supply to that self-commutated converter.  With this structure, the DC power supply supplies a circulat-ing current according to a rated current of the self-commutated converter to the reactor and the diode.
Patent CA-2052580-C (CA)
Inventor: OSBORN CHARLES
IPC: F16H59/74
Filed: 1991-10-01
Granted: 1994-03-29
Abstract: ABSTRACT         A locking mechanism and system for a vehicle shifter in which the shifting lever is locked in a park lock position until the brakes of the automotive vehicle are applied and/or the steering lockout mechanism located in the steering column of the vehicle is released by the ignition key of the vehicle.  In one embodiment of the invention the pawl of the shifting lever is restrained by a lockout arm through which the brake mechanism and the lockout cable extending to the steering column are connected.  In another embodiment, the lockout cable is eliminated by providing two electrical control modules operatively connected to the brake mechanism and the ignition key switch which controls the steering lockout mechanism.  These two modules are connected in a unique circuit 80 that the shifting lever cannot be shifted out of park to other gear positions until the brake is applied and the steering lockout mechanism is released by the ignition key switch.  This system prevents the return of the ignition switch to the lock position until the shifting lever is in the park position.  In other embodiments of this invention, a manual apparatus is provided for retracting the lock pin of a control module to unlocked position.  In still another embodiment, a structure is provided for overriding the extension of the lockout pin of a control module by exerting a greater than normal force on the shifting lever.
Patent CA-2053363-C (CA)
Title: Open-end wrench with reduced size jaws
Inventor: ANNIS JEFFREY R
IPC: B25B13/08
Filed: 1991-10-11
Granted: 2002-04-16
Abstract: The one-piece, open-end wrenching head includes two substantially equal-length jaws with a throat recess there-between. The jaws respectively include driving surfaces spaced apart a distance slightly greater than the across-flats dimension of an associated hexagonal fastener, with each driving surface having a length no greater than the length of one of the flat sides of the associated fastener and having a serrated region thereon. The distance from the deepest part of the throat to an imaginary line connecting the distal ends of the jaws is approximately 0.86 times the across-flats dimension of the fastener.
Patent CA-2055331-C (CA)
Title: Accumulator with a valve connected float
Inventor: SCHNEIDER JEFFRY A
IPC: F16L55/052
Filed: 1991-11-12
Granted: 1994-08-09
Abstract: A liquid-gas accumulator having a housing with a top gas port and a bottom liquid port. A spring-loaded, normally open valve is positioned in the liquid port and a buoyant float is rigidly connected to the valve element for controlling the opening and closing of the valve in response to the liquid level in the housing. A resilient seal may be provided between the float and the valve element positioned to seat around the valve as the valve closes thereby providing a secondary seal.
Patent CA-2056159-C (CA)
Title: Non-chromated cobalt conversion coating
Inventor: SCHRIEVER MATTHIAS P
IPC: C23C22/83
Filed: 1991-11-25
Granted: 2001-07-03
Abstract: (A.) A process for forming a cobalt conversion coating on a metal substrate, thereby imparting corrosion resistance and paint adhesion properties. The invention was developed as a replacement for the prior art chromic acid process. The process includes the steps of: (a) providing a cobalt conversion solution comprising an aqueous solution having a pH of about 7.0 to 7.2 and containing a soluble cobalt-III hexacoordinated complex, the concentration of the cobalt-III hexacoordinated complex being from about 0.1 mole per gallon of solution to the saturation limit of the cobalt-III hexacoordinated complex; and (b) contacting the substrate with the solution for a sufficient amount of time, whereby the cobalt conversion coating is formed. The substrate may be aluminum or aluminum alloy, as well as magnesium and its alloys, Cd plated substrates, and Zn plated substrates. The cobalt-III hexacoordinated complex may be present in the form of Me3[Co(NO2)6] wherein Me is one or more of Na, K, and Li. (B.) A chemical conversion coating solution for producing the cobalt conversion coating on a metal substrate, the solution being an aqueous solution having a pH of about 7:0 to 7.2 and containing a soluble cobalt-III hexacoordinated complex, the concentration of the cobalt-III hexacoordinated complex being from about 0.1 mole per gallon of solution to the saturation limit of the cobalt-III hexacoordinated complex. The cobalt conversion solution may be prepared by a bath makeup sequence including the steps of: (a) dissolving a metal nitrite salt; (b) dissolving an accelerator such as NaI; (c) dissolving a cobalt-II salt; and (d) then adding an oxidizer such as H2O2. (C.) A coated article exhibiting corrosion resistance and paint adhesion properties, the article including: (a) a metal substrate; and (b) a cobalt conversion coating formed on the substrate, the cobalt conversion coating including aluminum oxide Al2O3 as the largest volume percent, and cobalt oxides CoO, Co3O4, and Co2O3.
Patent CA-2060020-C (CA)
Title: Tapered block copolymers of conjugated dienes and monovinylarenes
Inventor: TREPKA WILLIAM J
IPC: C08F297/04
Filed: 1992-01-28
Granted: 1996-09-17
Abstract: A method  for preparing tapered block copolymers  in a polymerization process by sequentially charging: (1) an initiator and monovinylaromatic monomers in the presence of a randomizer; (2)  an initiator and a mixture of monovinylaromatic and conjugated diene monomers; (3)   an initiator and a mixture of monovinylaromatic and conjugated diene monomers; and (4)  a coupling agent to produce a polymodal tapered block copolymer.  The copolymers are particularly useful for packaging applications which require good environmental stress crack resistance.
Patent CA-2063533-C (CA)
Inventor: FRISWELL MICHAEL R
IPC: C10L1/00
Filed: 1992-03-19
Granted: 1995-10-10
Abstract: Liquid petroleum products are marked with markers having the formula:       wherein the R1s and the R2s are the same or different and are each selected from -H and C1-C7 alkyls; provided that at least one, and preferably both, R1s are a C3-C7 alkyl; and wherein the R3s are the same or different and are selected from -H, -NO2, -Cl, -Br, -F, -CN, and -Me; and provided that at least one R3 is selected from -NO2, -Cl, -Br, -F, and -CN.
Patent CA-2065034-C (CA)
Inventor: WELSCH GARY ANDREW
IPC: G06F7/38
Filed: 1991-07-15
Granted: 1996-12-24
Abstract: Apparatus and method for transferring segmented memory between memory units (756, 764) determines a need for memory transfer and searches a memory unit segment by segment until a valid data record is found. This valid data record is conveyed to another memory unit via the asynchronous mode. If a valid data record is not found within a predetermined amount of time, a message identifying the memory segment last searched is conveyed. If no remaining valid data records are found, a message with no information is conveyed. Priority is given to asynchronous messages.
Patent CA-2065068-C (CA)
Title: Hub assembly with integral abs exciter ring seal
Inventor: DEANE ALASTAIR R
IPC: F16C35/04
Filed: 1992-04-03
Granted: 1994-09-06
Abstract: A hub assembly for a motor vehicle equipped with an anti-lock brake system is disclosed in which the exciter ring for the ABS is press fit over the outer surface of the hub with the ring providing an inner cylindrical surface for a press fit mount of a seal assembly into the exciter ring rather than providing a mounting surface in the hub for the seal assembly.  As a result, only the bearing race and the exciter ring are press fit to the hub.    This configuration  enables  the  exciter  ring  to  be positioned radially outwardly from the bearing such that the bearing provides radial support to the hub beneath the exciter ring whereby distortion of the hub assembly components due to multiple press fit mounts is reduced, part to part variation is reduced and dimensional instability of the assembly is reduced.
Patent CA-2068579-C (CA)
Title: Expansion dowel with friction reducing coating
Inventor: SCHIEFER ERWIN
IPC: F16B1/00
Filed: 1992-05-13
Granted: 2001-02-27
Abstract: An expansion dowel has a friction reducing coating on the contacting surfaces formed by an inside surface of an expansion sleeve and an outside surface of the shank contacting the inside surface of the sleeve. The coating effects a smaller friction value between the expansion sleeve and the expansion part than the friction value between the expansion sleeve and the surface of a borehole into which the dowel is inserted. This difference in friction assures an effective re-expansion of the expansion dowel in a fractured or broken tensile zone of a receiving material containing the borehole. In addition to the coating, protrusions arranged in pairs are formed on the outside surface of the expansion sleeve for maintaining contact with the borehole surface, particularly in the broken tensile zone during large displacement of the expansion dowel.
Patent CA-2072098-C (CA)
Title: Seismic device
Inventor: SVENNING BJORNAR
IPC: G01V1/38
Filed: 1990-10-22
Granted: 1999-12-07
Abstract: Device comprising instruments for the collecting and recording of signals in seismic exploration of the formation off-shore. The intermediate main portion (1) is approximately cylindrically shaped and is connected to a pointed end (2) via a vibration absorbing spacer (6). The other end of the intermediate main part is connected to a top part designed for insertion/pulling and other ways of handling the device, where the pointed end at least comprises geophones and a hydrophone is placed in or near the upper end of the device, and the other instruments of the device are situated in the middle main portion.
Patent CA-2073482-C (CA)
Inventor: HASHIGUCHI YUJI
IPC: C07H15/04
Filed: 1992-07-08
Granted: 2003-08-19
Abstract: A nuclear magnetic resonance imaging agent comprises a complex compound composed of (a) dialdehyde-saccharide having a molecular weight of from 500 to 10,000, at least one of constituent monosaccharides of which is oxidation-cleaved, (b) at least one complexing agent that is chemically coupled to an aldehyde group of the dialdehyde-saccharide and (c) a paramagnetic metal ion that is chemically coupled to the complexing agent. The agent has improved performance, included a more desirable retention time in blood.
Patent CA-2073639-C (CA)
Title: Explosive powder charge operated setting tool with magazine for fastening elements
Inventor: OEHRY NORBERT
IPC: B25C1/18
Filed: 1992-07-10
Granted: 1998-09-22
Abstract: An explosive powder charge operated setting tool includes a housing containing an axially extending fastening element guide which is axially displaceable opposite to the driving direction when the front end of the setting tool is pressed against a structural component into which a fastening element is to be driven.  When it is axially displaced, the fastening element guide displaces a piston guide which, in turn, means a device into a cocked position so that a firing pin in the device is ready to ignite the powder charge.  The fastening element guide has an axially extending feed slot aligned with a magazine forming a part of the housing.   Fastening elements are connected together in a belt-like fashion by guide bushes each positioned on a fastening element.  The feed slot has a stepped width extending in the axial direction so that in axial displacement of the fastening elements only a single fastening element can be positioned to be driven from the fastening element guide .
Patent CA-2076292-C (CA)
Title: Arrangement for monitoring roller bearings
Inventor: KOSS ENGELBERT
IPC: G01M13/04
Filed: 1992-08-18
Granted: 1998-04-21
Abstract: A device for detecting and monitoring damage to races (3 & receiver 24) or adjacent areas on the rings (1 & 2) in antifriction bearings. The object of the present invention is a device that will not only precisely measure the dimensions of cracks and pits in the race or in the transition between the races and the ring but will also forward the results to the processing equipment with no perforations in the ring and without cables and plugs. One or more sensors (13 & 14) are positioned between the rolling components (5) inside the antifriction bearing, whereby the signals they generate are transmitted electromagnetically to a receiver antenna (23) outside the antifriction bearing.
Patent CA-2076836-C (CA)
Inventor: HENRY ARNOLD W
IPC: C08L27/12
Filed: 1992-08-25
Granted: 1999-04-13
Abstract: A multilayered fuser member for fusing thermoplastic resin toner images to a substrate in a fuser system of the type wherein a polymeric release agent having functional groups is applied to the surface of the fuser member, the fuser member has a base support member, a thermally conductive silicone elastomer layer, an amino silane primer layer, an adhesive layer and an elastomer fusing surface comprising poly(vinylidenefluoride-hexafluoropropylene-tetrafluoroethylene) a metal oxide present in the fusing surface to interact with the polymeric release agent to provide an interfacial barrier layer between the fusing surface and the toner and substantially unreactive with the elastomer, the elastomer having been cured from a solvent solution with a nucleophilic curing agent soluble in the solution and in the presence of inorganic base per 100 parts of polymer, the adhesive layer having been cured from a solvent solution of the above composition from which the fusing surface is cured and from about 5 to about 10% by weight of a coupling agent represented by the formula:                 where R can be an alkyl having 1 to 4 carbon atoms; R' can be an alkyl group having 1 to 7 carbon atoms; R" can be H, R or the acyl radical,   X is a vinyl group or an alkenyl group or an alkyl, having 1 to 4 carbon atoms, substituted alkenylcarboxy group of less than 8 carbon atoms; and q is 1 or 2, k is 0 to 3, b is 0 to 2, a is 0 or 1, p is 0 to 20 and k + b + a = 3.
Patent CA-2076899-C (CA)
Title: Video image processor and method for detecting vehicles
Inventor: ALVES JAMES F
IPC: H04N11/04
Filed: 1992-08-26
Granted: 1999-04-06
Abstract: A method for processing video images having the steps of generating video images (103) with a multi-spectral video source (102) and converting analog color data contained in the generated video images (103) to digital color data for subsequent signal processing.  The method further includes the steps of extracting the digital color data from designated areas of the generated video images and utilizing the extracted digital color data for identifying a color distinguishable from a background color. Thus, the invention provides a method for processing generated video images which has an intrinsic immunity to the effects of shadows by exploiting multi-spectral color information to distinguish, for example, a passing vehicle from the roadway 116.  In a preferred embodiment, a video image processor (100) is employed having a multi-spectral video source (102) for generating the video images.  A color digitizer (104) is employed for converting the analog color data contained in the generated video images to the digital color data for the subsequent signal processing.  Then, a digital signal processor (106) is employed to extract the digital color data from the designated areas of the generated video images.  Finally, a central processing unit (108) utilizes the extracted digital color data to identify a color distinguishable from the background color.
Patent CA-2083752-C (CA)
Title: Composition containing benzyltoluenes and benzylxylenes, its application as dielectrics
Inventor: COMMANDEUR RAYMOND
IPC: C07C15/16
Filed: 1992-11-25
Granted: 1998-06-09
Abstract: A dielectric oil which is a mixture of benzyltoluenes and of benzylxylenes. This oil can be prepared by a Friedel and Crafts condensation of benzyl chloride with a mixture of toluene and xylene.   The dielectric strength (breakdown voltage) of this oil has been measured.
Patent CA-2086795-C (CA)
Title: Water repellents containing organosilicon compounds
Inventor: BANK HOWARD M
IPC: D06M13/02
Filed: 1993-01-06
Granted: 2001-10-09
Abstract: A composition which is an aqueous solution including (i) an alkyltrialkoxysilane with C1 to C6 alkyl groups on silicon; (ii) a silane coupling agent, (iii) an amino resin and (iv) a quaternary ammonium silane. The composition is used to render surfaces water repellent.
Patent CA-2087806-C (CA)
Title: Defective equipment window stickers
Inventor: LONGTIN ANDRE G
IPC: G09F3/10
Filed: 1993-01-21
Granted: 2002-08-20
Abstract: A specially constructed label is useful for application of a first face of the label to the inside face of a transparent pane so that it is visible from the outside face, and which label may have indicia applied to its first face. The label first face has self-imaging material, and it is covered by a transparent release liner, with laminating adhesive between the release liner and the label first face. Writing applied to the release liner will be transferred to the first face. The label is preferably part of a business form having a paper sheet attached by adhesive at an overlap area between the paper sheet and the label. Perforations allow ready detachment of the label from the paper sheet. The business forms are constructed by passing a web of plain paper and NCR paper to an adhesive application station, to printing stations for the application of printing to the first faces, to a station where the release liner and adhesive are brought into contact with the NCR paper, and then to a cutting station where the web is cut into individual forms, perpendicular to the direction of movement of the web during construction.
Patent CA-2096561-C (CA)
Title: Conveyor belt cleaners
Inventor: GORDON JAMES R
IPC: B65G45/16
Filed: 1993-05-19
Granted: 1994-12-06
Abstract: A primary conveyor belt cleaner includes an elongated support extending across but spaced from a conveyor belt of width W and includes a stiff guide extending for approximately the full length of the support; a scraper blade of resilient elastomer resin is mounted on the support and engages the conveyor belt surface.  The scraper blade has a short base wall removably mounted on the support by a reinforcement that interfits with the guide; the blade has two longer curved side walls, an inner wall concave toward the belt and an outer wall convex away from the belt.  The two side walls come together to form a scraping edge.  The belt cleaner includes a torsion bias mechanism that resiliently maintains the belt scraping edge in continuous engagement with the belt.  Two or more primary cleaners may be incorporated in one system.  Flexure of the blade permits passage of a mechanical splice in the belt without appreciable damage to the blade or to the splice.