baber/WOPTO huggingface dataset:
Patent CA-2051628-A1 (CA)
Title: Spring Bedding Product
Inventor: SCOTT TERENCE A
IPC: A47C27/04
Filed: 1990-04-10
Abstract: 2051628 9012525 PCTABS00002 A spring interior (21) comprising a plurality of longitudinally extending bands (22) of springs disposed side by side and connected together by helical lacing wires (23) in the top (25) and bottom (26) faces of the bands. Each band of springs (22) comprises a single length of wire formed into a plurality of substantially vertical coils (31) of springs interconnected by interconnecting segments (35, 36) of wire located alternately in the top and bottom faces of the bands. Each interconnecting segment (35, 36) comprises a longitudinally extending bridging portion (37), a pair of transversely extending end portions (38), and a transversely extending support structure (40). The corners (38a, 38b) defined by the intersections between the bridging portions (37) and the end portions (38) of the interconnecting segments are radiused by radii of differing dimension so as to colinearly align the bridging portions of each band of springs. Misalignment of the bridging portions of the bands of springs had heretofore reduced the durability of the spring interior (22).
Patent CA-2052861-A1 (CA)
Inventor: HUBERT JEAN-LUC
IPC: B08B9/02
Filed: 1991-10-07
Abstract: ABSTRACT OF THE DISCLOSURE    To remove a thick insulating coating from a steel pipeline, with high efficiency and speed, multiple cooling and scraping steps are performed sequentially.  In a first cooling step, a low temperature coolant is sprayed onto the coating for a time sufficient to cool only a portion of the coating to a temperature below the embrittlement temperature thereof.          After scraping away the embrittled outer layers of the coating, subsequent cooling and scraping steps are performed until all of the coating has been embrittled and removed.  It has been found that the time required for removing the coating by use of such multiple spraying and scraping steps is substantially less than that where the coating is to be embrittled in a single step.
Patent CA-2056287-A1 (CA)
Title: Cationic polymerisation of 1-olefins
Inventor: MILN COLIN D
IPC: C08F10/08
Filed: 1991-11-27
Abstract: Case7667(2) ABSTRACT OF THE DISCLOSURE     This invention relates to a process for producing a polymer predominating in terminal unsaturation by cationically polymerising a 1-olefin in the liquid phase at a temperature from -100 to +100°C in the presence of a catalyst composition comprising tin tetrachloride and a co-catalyst which is a source of cations and which is substantially free of organometallic compounds. The process is particularly suited to producing polybutenes having high vinylidene content which have high reactivity, especially towards forming maleic anhydride adducts.
Patent CA-2056903-A1 (CA)
Title: Radio transceiver
Inventor: VAN KAMPEN ADRIAN C A
IPC: H04B1/403
Filed: 1991-12-04
Abstract: ABSTRACT         A radio transceiver has a transmit path comprising a first angle modulator for producing a radio transmission signal comprising a carrier wave of a first frequency modulated by a transmit message signal applied thereto, and having a receive path comprising first and second mixers for producing a resultant intermediate frequency signal from a radio reception signal applied thereto.  The transceiver further comprises a second angle modulator for producing a local oscillator signal comprising a carrier wave of a second frequency modulated by the transmit message signal applied thereto.  The radio transmission signal produced by the first angle modulator is applied to a local oscillator input of the first mixer and the local oscillator signal produced by the second angle modulator is applied to a local oscillator input of the second mixer.  A phase shifter is so arranged that the phase of the transmit message signal applied to the first angle modulator differs from the phase of the transmit message signal applied to the second angle modulator.  The respective modulation characteristics of the first angle modulator and the second angle modulator are so matched and the phase shifter has such a phase delay that substantial rejection is achieved in the second mixer of a modulation component related to the transmit message signal present in the receive path.
Patent CA-2058964-A1 (CA)
Inventor: WALSH DEREK
IPC: A61M39/26
Filed: 1991-02-27
Abstract: A disposable infuser is provided having a source of pressur-ized liquid contained in a liquid chamber (14). The liquid chamber (141 includes housing (20) defining an access aperture (83). A one-way duck-bill valve (80) is contained in the access aperture (83). A separate outlet conduit (84) is provided having a blunt cannula (98). When the outlet conduit (86) is attached to the housing (20). the blunt cannula (98) extends into the duck-bill valve (80) sufficiently to open the duck-bill valve (80) to establish fluid communication between the source of pressurized liquid (14) and the outlet conduit (84).
Patent CA-2059330-A1 (CA)
Inventor: CORNELISON RICHARD C
IPC: F01N13/02
Filed: 1992-01-14
Abstract: ABSTRACT OF THE DISCLOSURE     There is provided a core element for an electrically heatable catalytic converter, and an electrically heatable catalytic converter containing the same, the core element being characterized by a corrugated thin metal foil strip, preferably herringbone corrugated, and in laminar relationship therewith, a flat thin metal foil strip of either stainless steel or brazing metal, or a combination of both, the flat thin metal foil strip having a width less than the the width of the corrugated thin metal foil strip.  The strips are then spirally wound, or accordion folded to form a monolith, and suitably connected to a voltage source to supply electrical power to the unit.
Patent CA-2060045-A1 (CA)
Title: Process for preparing perhalogenated olefins
Inventor: MONTANARI VITTORIO
IPC: C07C23/06
Filed: 1992-01-27
Abstract: The invention relates to a process for preparing perhalogenated olefins which comprises reacting a perhalogenated alkane, having at least one atom of a halogen different from fluorine, with a tris-dialkylamino phosphine at temperature not higher than 60°C.
Patent CA-2060197-A1 (CA)
Title: Zone density sector counter
Inventor: WILSON ROSSER S
IPC: G11B27/10
Filed: 1990-06-05
Abstract: ABSTRACT OF THE DISCLOSURE     In the present invention, a single sector counter and accompanying multiple buffer registers are used to provide the sector count for a plurality of recording zones.  Initially, the sector counter is validated by synchronizing it with an index mark.  In one embodiment, an angular position sensing counter counts a clock having a frequency and phase to match the occurrence of segments in a reference zone.  A look up table or computation provides an offset value representing the difference between each reference zone segment boundary, and the occurrence of the next consecutive sector in each of the recording zones.          Additional logic generates periodic sector pulses once the zone transition has been accomplished, and provides means to prevent generation of shortened sector intervals.  This permits rapid validation of the sector signal so that it is no longer necessary to wait for the index in a hard-sectored drive before establishing the sector position when changing zones.  This improves the latency of the disk drive and overall system performance.
Patent CA-2063619-A1 (CA)
Title: Regeneration of alkaline permanganate solutions and electrochemical cell therefor
Inventor: LEISTRA JAMES A
IPC: H05K3/00
Filed: 1992-03-20
Abstract: REGENERATION OF ALKALINE PERMANGANATE SOLUTIONS AND ELECTROCHEMICAL CELL THEREFORE                 ABSTRACT OF THE DISCLOSURE        Described herein is a process for the electro-chemical regeneration of spent alkaline permanganate solutions in a particular electrochemical cell.
Patent CA-2065641-A1 (CA)
Title: Method for producing by continuous heat treatments oil-tempered steel wires for springs having high strength and high toughness
Inventor: SUGITA HEIJI
IPC: C21D1/19
Filed: 1992-04-09
Abstract: Disclosed herein is a method for continuously hardening and tempering oil-tempered steel wires for springs having high strength and high toughness, and which meet a requirement for weight reduction.  The method is applicable to medium-carbon low-alloy spring steel having a chemical composition which does not undergo martensitic transformation substantially upon oil hardening alone and thus has an Mf point lower than 80° C.  The steel is one which contains carbon in amount of 0.40-0.65 weight %, Si, Mn, and at least one species selected from the group consisting of Cr, Ni, Mo and V.  The method comprises performing a two-step accelerated hardening consisting of subjecting the heated spring steel to oil hardening, wiping oil from the steel, followed immediately by water hardening to produce a hardened steel.  Subsequently, tempering is performed on the hardened steel to produce a tempered steel.
Patent CA-2066842-A1 (CA)
Title: Corneal treatment agents
Inventor: MULLER DAVID F
IPC: A61K9/08
Filed: 1992-04-22
Abstract: ABSTRACT OF THE DISCLOSURE          Aliphatic alcohols are disclosed for the treatment of discomfort and visual artifacts following laser surgical procedures on the cornea of the eye.  Such compositions reduce the inflammation associated with photorefractive keratectomy and promote the regrowth of epithelial tissue over the reprofiled corneal surface.
Patent CA-2068909-A1 (CA)
Inventor: GETTIG WILLIAM A
IPC: A61L2/04
Filed: 1992-05-19
Abstract: A sterilizing apparatus and method for contaminated  syringe needles includes an elongated heating tube having a central  bore capable  of receiving only the needle of a syringe  assembly  and which is heated by electrical resistance material surrounding the tube.  Precise regulation over the interval and level of  heating of  the  tube is provided through a power  controller  associated with logic circuitry, switches and a series of timers sequential-ly  initiated.  In this manner, should a fault in  the  apparatus exist  and the temperature within the heating tube not  reach  at least 482 degrees C. within the duration of the cycle of a  first one  of  the timers, the power controller interrupts  passage  of current  to the heating tube.  On the other hand, when this  tem-perature is achieved during the time cycle of the first timer,  a second timer is initiated and allows continued passage of current to  the  heating  tube for a prescribed  interval  calculated  to achieve  the  desired sterilization.  The concentrated  heat  as applied to the air within the restrictive tube bore  additionally physically  renders  the sterilized needle un-usable as  it  will have been annealed and this fact will be apparent from its black-ened appearance.
Patent CA-2072400-A1 (CA)
Inventor: NAIR JAYAPRAKASH B
IPC: B01D11/00
Filed: 1992-06-25
Abstract: A method for extracting taxanes such as taxol .TM. comprising the use of supercritical fluids.
Patent CA-2074448-A1 (CA)
Inventor: SCARAMUCCI JOHN P
IPC: F16K15/03
Filed: 1992-07-22
Abstract: A top-entry  check valve  having  a  seat,  cage,  disc  and removable bonnet utilizes a retainer ring to prevent movement of the seat, cage and disc in the downstream direction.  An annular shoulder in the valve body prevents movement of the seat, cage and disc in the upstream direction.  The disc has a hinge pin which is cradled in hinge pin supports of the cage to hold the disc in place.  The retainer ring is secured in the valve body by fitting into a transverse groove formed in the inside surface of the valve body.  Removal of the bonnet allows access to the valve chamber for replacement of the seat, cage, disc or retainer ring.
Patent CA-2075477-A1 (CA)
Title: Blood cryopreservation bag
Inventor: IRR JOSEPH D
IPC: A61J1/00
Filed: 1991-01-17
Abstract: This invention relates to bags (6) for the cryopreservation of mammalian cells and particularly for the long-term freezing of red blood cells. This invention also relates to methods of manufacturing such bags.
Patent CA-2075661-A1 (CA)
Title: Flow control system
Inventor: TAYLOR STEPHEN A
IPC: G05D7/00
Filed: 1992-08-10
Abstract: A fluid flow control system in which a vortex valve is combined in series with a non-fluidic control valve. The non-fluidic control valve is upstream of the vortex valve and is so arranged that small changes in its state control the operation of the vortex valve, which provides the major control over the flow of the fluid.  Erosion in the non-fluidic valve due to abrasion or cavitation in the non-fluidic valve is thereby reduced.
Patent CA-2076257-A1 (CA)
Title: 4-¬4-¬4-(4-hydroxyphenyl)-1- piperazinyl|phenyl|-5-methyl-3h -1,2,4-triazol-3-one derivatives
Inventor: HEERES JAN
IPC: A61K31/41
Filed: 1992-08-17
Abstract: ABSTRACT   4-[4-[4-(4-HYDROXYPHENYL)-1-PIPERAZINYL]PHENYL]-5-METHYL-3H-1,2,4-TRIAZOL-3-ONE     2-[2-(4-chlorophenyl)-2-(hydroxy or oxo)ethyl]-2,4-dihydro4-[4-[4-(4-hydroxy-phenyl)-l-piperazinyl]phenyl]-5-methyl-3H-1,2,4-triazol-3-one having the formula (I),   wherein X represents C=O or CHOH, for use as 5-lipoxygenase inhibitors. Pharmaceutical compositions, processes for preparing said compounds and compositions; and a method of treating leukotriene mediated diseases.
Patent CA-2077460-A1 (CA)
Title: Waste water treatment process using improved recycle of high density sludge
Inventor: WENTZLER THOMAS H
IPC: C02F1/62
Filed: 1990-11-30
Abstract: An improved process for removing dissolved metals from waste water using a recycle high density sludge is described. Specifically, the process comprises the steps of: (1) treating waste water containing dissolved metals with a recycle stream containing alkaline surface active recycle particles to precipitate the dissolved metals on the surface of the recycle particles; (2) treating a portion of the treated waste water containing metal precipitate solids with an alkaline reagent to form alkaline surface active recycle particles; (3) recycling the alkaline treated stream containing the alkaline surface active particles; and (4) separating the portion of the stream from step (1) not treated with alkaline reagent into a water component which is free of dissolved metals and solids and a sludge component which contains solids. The improved process is further enhanced by using a solids classification step to preferentially separate finer metal precipitate particles, which are treated with an alkaline reagent and recycled, from larger metal precipitate particles, which are discarded.
Patent CA-2077869-A1 (CA)
Title: Variable frequency solenoid driver circuit
Inventor: BAKER KEITH R
IPC: H03K17/00
Filed: 1992-09-09
Abstract: VARIABLE FREQUENCY SOLENOID DRIVER CIRCUIT         Abstract of the Disclosure A circuit provides a driving current to a coil of a solenoid.  The circuit includes a current sensing feedback resistor in series with the solenoid coil.  This current is sensed by a comparator which turns the driving current off when the coil current exceeds a reference level and turns the driving current back on when the current drops below the reference level.  The hysteresis of the comparator circuit provides a controllable off and on time, and thus provides a variable frequency driving current which has a peak-to-peak characteristic which remains substantially constant regardless of changes in the input signal and which has an average current value which varies substantially linearly as a function of changing input signal.
Patent CA-2078196-A1 (CA)
Title: Arrangement for obtaining authentication key parameters in a cellular mobile telecommunications network
Inventor: CHANG CHENG-TZE
IPC: H04W12/06
Filed: 1992-09-14
Abstract: ARRANGEMENT FOR OBTAINING AUTHENTICATION     KEY PARAMETERS IN A CELLULAR MOBILE     TELECOMMUNICATIONS NETWORK Abstract This invention relates to apparatus and methods for providing cellular mobile telecommunication service in accordance with the requirements of the Global Systems for Mobile Communications (GSM) standard. A modular switching system is provided which performs the functions of the mobile switching center plus those of a home location register, authentication center, visitor location register, and equipment identity register. The latter functions are advantageously spread among the modules of the switching system, thus avoiding the getting started cost of expensive dedicated data bases. A wireless global switching module advantageously switches mobile communications control messages among the modules of the system and between the modules and the base station systems, and terminates signaling links between the mobile switching center and the base station systems.
Patent CA-2083808-A1 (CA)
Inventor: LANG KO-WEI
IPC: F16J15/44
Filed: 1992-11-25
Abstract: This invention is for adjustable gap hydrostatic bearings and adjustable gap seals. The adjustable gaps are useful to compensate for wear, thermal expansion, journal speed, and radial deflection of the journal. 1'he invention comprises a housing 10 adjacent to a journal 2.      The housing contains an annular electrodeformable material 5 which will expand or contract radially with the application of voltage and thus adjust the gap between the liner material 3 and the journal.
Patent CA-2085368-A1 (CA)
Inventor: BARRAT ALAN
IPC: H02G15/18
Filed: 1991-06-20
Abstract: An arrangement for enclosing a branch-off between a pair of cables (2, 3, 4) comprises a dimensionally recoverable sleeve (5) which can surround the branch-off, and one or more clips (6) which can be positioned about opposed walls of the sleeve to divide the sleeve into channels for the cables. The or each clip (6) is of unitary form and has a pair of legs (8) that are splayed outwardly to facilitate positioning of the clip over the sleeve walls. The or each clip is deformable so that the legs can be forced towards each other after the clip has been positioned on the sleeve walls but is sufficiently rigid, at least in its deformed state, it will resist opening out of the legs under the recovery forces of the sleeve.  The invention provides a relatively simple and easy to install enclosure for branch-offs in harnesses for example that are intended to be used in automotive vehicles.
Patent CA-2086283-A1 (CA)
Inventor: MASUI SUSUMU
IPC: C21D8/02
Filed: 1992-12-24
Abstract: A low-yield-ratio high-strength hot-rolled steel sheet having the advantageous features of both conventional precipitation-strengthened steel and structure-strengthened steel and free from the drawbacks of these conventional steels, and a manufacturing method characterized in hot-rolling such a steel sheet.  The steel sheet has an upper limit of C content of about 0.18 wt%, and the lower C content limit approximately satisfies C  0.05 + Ti/4 + Nb/8 in relationship with the content of Ti and/or Nb.  The steel sheet also contains about 0.5 to 2.5 wt% Si and has a structure essentially formed of ferrite in which a carbide of Ti and/or Nb is precipitated, martensite and retained austenite.
Patent CA-2089313-A1 (CA)
Title: Boot binding system for a snowboard
Inventor: JESPERSEN RANDY
IPC: A63C10/12
Filed: 1993-02-11
Abstract: ABSTRACT OF THE DISCLOSURE      A boot binding system for a snowboard includes a rigid heel support adapted for attachment to a heel of a boot.  The heel support has a protruding member.  A rigid ankle support is provided which is adapted for attachment along a rear seam of a boot.  The ankle support is pivotally secured to the heel support, such that the ankle support pivots laterally, and flexes forwardly, while providing rigid support rearwardly. A heel binding is provided having an overlay member which overlays the protruding member thereby preventing the heel of the boot from being raised.  A toe binding is provided which is adapted to secure a toe of a boot to a snowboard thereby preventing the protruding member from being moved relative to the overlay member.
Patent CA-2091938-A1 (CA)
Inventor: VAN EEDEN JOHANNES P
IPC: E01F8/00
Filed: 1991-07-19
Abstract: The invention relates to a method and means for manufacturing freely supported dome or tunnel-shaped structures by means of spraying a particular mortar with micro silica onto an inflated bladder (2) or sheet with or without a primarily applied layer (15) of foam and with or without reinforcing means (23, 24, 28) in particular for manufacturing a tunnel-shaped span (21) for a highway or railway portion.
Patent CA-2093413-A1 (CA)
Title: Improved ablation-transfer imaging/recording
Inventor: ELLIS ERNEST W
IPC: B41M5/385
Filed: 1991-09-25
Abstract: A unique method/system for simultaneously creating and transferring a contrasting pattern of intelligence on and from a composite ablation-transfer imaging medium to a receptor element in contiguous registration therewith is improvedly radiation sensitive and versatile, is kinetically rapid and not dependent on a sensitized ablative topcoat, and is well adapted for such appli-cations as, e.g., color proofing and printing, the security coding of various documents and the production of masks for the gra-phic arts and printed circuit industries; the composite ablation-transfer imaging medium, per se, comprises a support substrate (i), at least one intermediate "dynamic release layer" (ii) essentially coextensive therewith and an imaging radiation-ablative carri-er topcoat (iii) also essentially coextensive therewith, said imaging radiation-ablative carrier topcoat (iii) including an imaging amount of a contrast imaging material contained therein, and said at least one dynamic release layer (ii) absorbing such imaging radiation at a rate sufficient to effect the imagewise ablation mass transfer of at least said carrier topcoat (iii).
Patent CA-2093620-A1 (CA)
Title: Hot water supply system
Inventor: RANGER GARY C
IPC: F24D17/00
Filed: 1993-04-07
Abstract: ABSTRACT OF THE DISCLOSURE          In a domestic hot water supply system including at least one user terminal such as a shower head to which blended hot and cold water are supplied at a selected temperature, the cold water of the blend is supplied via a check  valve which  responds  to  changes  in  hydrodynamic pressure so as to regulate the volumetric flow of cold water and thereby compensate for changes of water demand in other parts of the system.
Patent CA-2093718-A1 (CA)
Title: Nozzle cleaning system including spray gun cover for can coating system
Inventor: WARYU JOSEPH C
IPC: B05B15/02
Filed: 1993-04-08
Abstract: An apparatus for cleaning a coating gun nozzle used in spraying the inner surface of cans with a coating material comprises a cleaning nozzle of a cleaning gun for spraying a cleaning solution onto the spray nozzle to remove oversprayed coating material collecting thereon.        The cleaning nozzle is secured to an end of an elongated cleaning gun extension and is positioned above a spray nozzle secured to one end of a coating gun extension for spraying cleaning solution onto said spray nozzle. Cover sleeves, forming liquid-tight seals with the cleaning and spray nozzles, have removable friction engagement with the cleaning and spray gun extensions to shield the cleaning and spray guns from oversprayed coating material. A control system controls the operation of the coating and cleaning guns.
Patent CA-2097769-A1 (CA)
Title: Beacon for electric cable lines or suchlike products
Inventor: MARTIRENA LARUMBE FERNANDO
IPC: H02G7/00
Filed: 1993-06-04
Abstract: Marker for overhead power line cables or the like, intended to chase away birds and/or to warn them of the existence of the cables, comprising a central body which is fixed to the overhead line in the manner of a clamp, provided with lateral fins which are arranged vertically and which have a colour, arrangement and configuration in harmony with the terrain and the fauna of the region. In order to instal them, a device in the form of a trolley (carriage) has been provided, equipped with an electric motor and powered from a battery, which device is furnished with a marker charger (loader) and with a device which attaches them, and which moves along the overhead line and is activated by remote control. <IMAGE>