baber/WOPTO huggingface dataset:
Patent CA-2095164-C (CA)
Title: Seed drill filling apparatus
Inventor: SMITH DAVID R
IPC: A01C15/00
Filed: 1993-04-29
Granted: 1998-08-04
Abstract: A lift auger and hopper extension assembly for use with a no-till or like seeder drill having an elongated seed hopper mounted laterally across the seeder drill. The assembly comprises a lift auger unit mounted on the seeder drill for movement about horizontal and vertical axes and movable on a slide mechanism from a storage position parallel alongside the seed hopper to a fill position with a fill hopper adjacent the ground and a spout unit poised above the center of the seed hopper, and the associated hopper extension mounted on top of the seed hopper for receiving and distributing an even flow of grain from the spout unit toward both ends of the seed hopper.
Patent CA-2096176-C (CA)
Title: Variable length decoder
Inventor: KUSTKA GEORGE JOHN
IPC: H03M7/42
Filed: 1993-06-16
Granted: 1998-09-08
Abstract: Apparatus for decoding a stream containing codes of a variable length code (VLC) takes advantage of the fact that a tree representation of the VLC canbe pruned to leaves that each represent a complete binary tree. Combinational circuits or ROMs are then employed to decode the pruned tree, thereby substantially reducing the complexity of decoding a VLC. In one embodiment the decoding problem is partitioned into segments by considering a few bits at a time, starting with the most significant bits. Each segment either outputs a valid code or informs the next segment that the decoding process is incomplete and provides information to assist the next segment in its decoding effort. In applications where the VL code can be selected for greater efficiency of the decoder, the offered VL code can be restructured to minimize the number of k-nodes, to thereby minimize the pruned tree, and to concomitantly minimize the sizes of the ROMs in the decoder.
Patent CA-2098468-C (CA)
Title: Method for battery charging
Inventor: THEOBALD DAVID J
IPC: H01M10/44
Filed: 1993-06-15
Granted: 1998-09-01
Abstract: The battery charging process of the present invention uses three charging rates. The initial charge rate of C charges the battery (101) until the battery's temperature reaches a certain level (102). The charger then changes to a trickle charge rate of C/8 to finish charging the battery (103). Next, the charger reduces the charging rate to C/40 to maintain the battery's charge (105). The process then monitors the battery's voltage. If the voltage signal has a slope that indicates the battery is being used by an attached device (106), the charging rate is increased to the trickle charge rate to simultaneously power the device and charge the battery.
Patent CA-2101490-C (CA)
Inventor: SPITZER MARTIN
IPC: C08L71/02
Filed: 1993-07-28
Granted: 1999-03-30
Abstract: The invention relates to compositions comprising a) a polyol having on average 3 to 8 hydroxyl groups per molecule and an average molecular weight per hydroxyl group of up to 150; b) a polyether-polyol having on average 2 to 3 hydroxyl groups per molecule and an average molecular weight per hydroxyl group of 150 to 500 and c) a poly(oxyalkylene)polyamine having on average 2 to 4 amino groups per molecule and an average total molecular weight of between 1000 and 3000.   The compositions described are distinguished by a low tendency to demix, even during prolonged storage.   Reaction mixtures of the compositions described, as hardeners, and polyisocyanates of the diphenylmethane series cure fully without passing through a brittle phase. The shaped articles formed have good mechanical properties.
Patent CA-2108654-C (CA)
Inventor: ZARATE CARLOS E
IPC: A61N5/06
Filed: 1993-10-18
Granted: 2003-12-09
Abstract: An illuminator for photodynamic therapy includes a bulb, a condenser lens assembly and a filter assembly.      The filter assembly includes the following components in an optical path: (1) a high-pass filter to filter out light having wavelengths below a first wavelength value; (2) a low-pass dichroic filter to filter out light having wavelengths above a second wavelength value; and (3) a dichroic mirror which reflects light having wavelengths between the first wavelength value and the second wavelength value and which transmits infrared light. An exit lens assembly directs light transmitted through the high-pass filter and the low-pass dichroic filter and reflected by the dichroic mirror onto a patient for photodynamic therapy. The condenser lens assembly and the exit lens assembly scramble the beam to ensure that the patient is illuminated with light which is highly uniform in both intensity sand spectral characteristics (color) throughout the illuminated area.
Patent CA-2109068-C (CA)
Inventor: FEHRINGER RUDOLF
IPC: H02P25/024
Filed: 1992-04-28
Granted: 2001-08-14
Abstract: The aim of the invention is to obtain a process for operating a perm-anently excited single-phase alternating current machine which allows opti-mal exploitation of the machine and economical design of the converter. The process of the invention is characterized in that the effective value of a phase current i of the alternating current machine at maximum torque can be minimized by impressing certain shapes of a terminal voltage u, using a converter. The optimal voltage shape, eg., sinusoidal, square wave or mixed, is chosen in function of the operating range of the machine. The process of the invention makes it possible for the first time to use a conver-ter of economical design to supply a permanently excited single-phase al-ternating current machine, such as a transverse flux machine, and in so do-ing to turn all the advantages of this machine to account is a wide range of applications.
Patent CA-2109834-C (CA)
Title: Method for preparing active carrier particles of equal size for a polymerization catalyst
Inventor: KOSKINEN JUKKA
IPC: C08F4/42
Filed: 1992-05-29
Granted: 2003-03-25
Abstract: The active carrier particles of even size of the polymerization catalyst are prepared so that a melt of a complex composition is provided having the formula (I):      MgCl2 nROH mED, in which ROH depicts an aliphatic alco-hol, R is a C1-C6 alkyl, ED de-picts an electron donor, n is 1 to 6 and m is 0 to I ; the melt pro-vided is fed to a nozzle (4); the melt is sprayed from the nozzle (4) to the spraying area (5), in which it is divided into fine mel droplets and possibly partly so-lidifies; the possibly partly so-lidified melt particles are trans-ferred to a cooled crystallization area (6), where they crystallize to solid carrier particles; and the solid carrier particles are rec-overed. The melt mentioned is sprayed through a nozzle (4), which is rotated or which has attached to it a member that ro-tates and throws melt outwards from the rotating center to the spraying area (5).
Patent CA-2116949-C (CA)
Title: Process for the simultaneous absorption of sulfur oxides and production of ammonium sulfate
Inventor: SALEEM ABDUS
IPC: B01D53/50
Filed: 1994-03-03
Granted: 2004-12-28
Abstract: Process for the removal of sulfur oxides from sulfur oxide-containing gas with simultaneous production of ammonium sulfate. The process is carried out by first passing hot sulfur oxide-containing gas through a prescrubber wherein the gas contacts saturated aqueous ammonium sulfate liquor which is recycled in the prescrubber, followed by passing the prescrubbed gas through an absorber wherein the prescrubbed gas contacts dilute aqueous ammonium sulfate liquor. The sulfur oxide in the sulfur oxide-containing gas is absorbed by the dilute aqueous ammonium sulfate liquor in the absorber, and scrubbed gas is removed from the absorber.      The dilute aqueous ammonium sulfate liquor is treated with ammonia and air and the absorbed sulfur dioxide is converted to ammonium sulfate in the liquor. The dilute ammonium sulfate liquor is recycled into contact with the prescrubbed gas in the absorber. Dilute aqueous ammonium sulfate liquor is removed from the absorber and added to the saturated aqueous ammonium sulfate liquor in the prescrubber where it becomes saturated due to evaporation caused by the hot gas. Ammonium sulfate crystals form in the saturated aqueous ammonium sulfate liquor in the prescrubber are recovered as product from saturated aqueous ammonium sulfate withdrawn from the prescrubber.
Patent CA-2119912-C (CA)
Title: Thermostable xylanase from a strain of rhodothermus marinus
Inventor: DAHLBERG LEIF A L
IPC: D21C9/10
Filed: 1992-10-14
Granted: 2002-02-05
Abstract: This invention relates to novel enzymes. More specifically, the invention provides novel xylanases obtainable from strains belonging to the genus Rhodothermus. The invention also relates to the use of the xylanases in the treatment of lignocellulosic pulp.
Patent CA-2122273-C (CA)
Inventor: HAUSTEIN NORMAN E
IPC: B60B35/16
Filed: 1992-11-12
Granted: 1995-09-26
Abstract: A driving wheel suspension system for a vehicle such as a passenger car, a van or a light or heavy truck or bus, which in-cludes a pair of wheel support assemblies (15) each of which consists of a leaf spring (16) lying parallel to the vehicle's drive shaft (14) and a wheel spindle (19) journalled within a wheel spindle housing (18) mounted on the center of the leaf spring (16), and a straight dead axle (12) whose opposite ends are connected to one of the wheel spindle housings (18) by a pair of spaced apart conical bearings (30, 31) journalled in the wheel spindle housing (18) and surrounding the end (12b) of the straight dead axle (12), whereby the conical bearings (30, 31) supporting the dead axle (12) prevent torsional loads being imposed on the dead axle (12) caused by vertical displacements of the driving wheels as the vehicle is driven over rough, uneven terrain.
Patent CA-2127736-C (CA)
Title: Packaging structure for microwave circuit
Inventor: KOSUGI YUHEI
IPC: H01L23/66
Filed: 1994-07-11
Granted: 1999-03-23
Abstract: A packaging structure for a microwave circuit having excellent heat radiation and obviating an intricate and large-sized shielding case is provided, the packaging structure comprising a circuit module accommodating internally a semiconductor element and a mother substrate 10; the circuit module 1 having two grounding conductor layers, a center conductor layer inserted therebetween, center conductor electrodes connected to the center conductor, grounding conductor electrodes disposed in the vicinity thereof, on one of its surfaces, and a thermal spreading plate connected to the other surface; the mother substrate 10 having two grounding conductor layers, a center conductor layer inserted therebetween, center conductor electrodes, grounding electrodes disposed on one of its surfaces, wherein the circuit module and the mother substrate are bonded so as to have the mutual electrodes joined directly facing with each other; a heat conductive elastomer is inserted between the thermal spreading plate and a heat radiating plate; and a pressure is applied to the mother substrate by means of a spring in order to bring the thermal spreading plate and the heat conductive elastomer to a close contact.
Patent CA-2129575-C (CA)
Inventor: GONZALEZ TEODORO J
IPC: F16K11/078
Filed: 1994-08-05
Granted: 2004-03-23
Abstract: A single control water mixing valve assembly which includes a fixed and a movable ceramic plate mounted within a housing in contact with one another and which serve to control the flow of water from hot and cold inlet ports to an outlet port. Linear and rotary movement is transmitted from a lever through a bushing to the movable plate as the lever is turned on a radial axis within the bushing and rotated about the longitudinal axis of the lever.      The fixed plate is spaced from the base and tubular resilient seals are positioned in the space and firmly held in place within the space by radial ribs. The lever is received in a channel in the bushing with the sides of the lever adjacent to the sides of the channel, so that rotation of the lever about its longitudinal axis transmits torque to the bushing which, in turn, transmits the torque to the movable plate.
Patent CA-2135788-C (CA)
Inventor: NAKA HIROSHI
IPC: C05G3/00
Filed: 1994-07-19
Granted: 1999-01-05
Abstract: Engrais granulaire à revêtement en plusieurs couches, dont la surface est revêtue d'un premier film, contenant au moins un polymère immédiatement biodégradable choisi dans un groupe consitué par des polyuréthannes et des polyesthers aliphatiques immédiatement dégradables, et d'un deuxième film, insoluble à l'eau, contenant un polymère lentement biodégradable et/ou une résine photodécomposable choisi dans un groupe constitué par des dérivés cellulosiques lentement biodégradables, un polyéthylène à faible poids moléculaire, une cire à faible poids moléculaire et une paraffine à faible poids moléculaire. Cet engrais se caractérise ainsi en ce qu'il est revêtu de deux matériaux dont les vitesses de décomposition diffèrent, en ce qu'il autorise une certaine régulation dans la libération des éléments fertilisants et en ce qu'il ne laisse aucune enveloppe après la libération de ces éléments, d'où son incidence négative minime sur l'environnement naturel.
Patent CA-2143501-C (CA)
Inventor: LINDER ALBERT
IPC: A61B17/12
Filed: 1995-02-27
Granted: 2000-05-30
Abstract: There is disclosed an apparatus for applying a multiple component tissue adhesive, which apparatus has component conveying channels for the components of the tissue adhesive, extending in a one-piece construction part from a connecting part to a delivery part, and a gas conveying channel for a medicinal gas serving for atomizing the tissue adhesive components, wherein all the conveying channels end in separate exit openings at a front side of the delivery part and extend parallel to one another over at least that part of their longitudinal extension which is immediately upstream of the exit openings, and wherein the component conveying channels together are enclosed by the gas conveying channel at least on that part of their longitudinal extension immediately in front of their exit openings.
Patent CA-2151822-C (CA)
Title: An erasable product
Inventor: BILBIE CLIVE JAMES
IPC: B43L1/12
Filed: 1993-12-15
Granted: 2005-09-20
Abstract: PCT No. PCT/NZ93/00125 Sec. 371 Date Jun. 15, 1995 Sec. 102(e) Date Jun. 15, 1995 PCT Filed Dec. 15, 1993 PCT Pub. No. WO94/14148 PCT Pub. Date Jun. 23, 1994An erasable product such as a rewritable label, sign or the like includes a base layer and an upper sheet extending over the base layer. The upper sheet and the base layer are releasably adhesive together under pressure manually applied on the upper sheet to cause the base layer and upper sheet to adhere in a localized region of pressure in order to display writing, an indicia, or the like. A wipe-start region is provided where the base layer and the upper sheet are not adhesive together and in which a user may place a finger or thumb to wipe across the top surface of the upper sheet in order to separate the upper sheet from the base layer and erase the indicia.
Patent CA-2159093-C (CA)
Inventor: WELNA WALTON W
IPC: C09K21/14
Filed: 1994-02-18
Granted: 2005-12-13
Abstract: A flexible, fire-retardant, intumescent composition comprising: (a) an intumescent material; (b) an effective amount of a stabilizing agent, and (c) an organic binder throughout which the intumescent material and stabilizing agent are dispersed the elastomeric binder being at least partially crosslinked, wherein the stabilizing agent consists essentially of a compound selected from the group consisting of compounds within general formula (I) wherein R1-R4 inclusive are independently selected from the group consisting of hydrogen and alkyl groups having from 1 to about 5 carbon atoms with the provisos that: (i) either both of R1 and R2, or both R3 and R4 are alkyl groups having from 1 to about 5 carbon atoms; and (ii) the stabilizing agent has a melting point ranging from about 105 °C to about 125 ° C.
Patent CA-2160045-C (CA)
Inventor: GENRICH THAD J
IPC: H03H17/06
Filed: 1995-10-06
Granted: 1999-04-27
Abstract: A high speed digital filter for use in digital interpolation and decimation provides a parallel processing implementation for integrator stages (80) of a cascaded integrator-comb (CIC) filter. The parallel structure of the present invention is easily cascadeable since it allows subsequent integrator stages access to intermediate samples (82,84) generated by preceding integrator stages. The parallel integrator structure may be implemented directly or may be reduced in complexity by removing redundant logic for use in decimator output sections or interpolator input sections. The parallel implementation of a CIC filter allows much higher sample rate filtering to be implemented with fewer standard CMOS logic devices than currently recognized implementations.
Patent CA-2161951-C (CA)
Title: System for supplying consumers with heat energy, and apparatus therefor
Inventor: SCHWARZ ALOIS
IPC: F24S20/30
Filed: 1995-11-01
Granted: 2004-02-24
Abstract: A system for supplying consumers with heat energy, having a carrier medium heated in at least one heat source. The outlet line of the at least one heat source (A, B, 8) is thereby connected to the inlet of at least one distributor device (1, 2) associated with it, and the distributor device (1, 2) is embodied with a plurality of outlets to which the flow lines (71-79') to consumers of heat energy at a different temperature level are connected, wherein by means of the distributor device (1, 2), one of the consumers to which the heated carrier medium can be delivered, can be selected (Fig. 1).
Patent CA-2166212-C (CA)
Title: A baton projectile
Inventor: SAXBY MICHAEL ERNEST
IPC: F42B12/74
Filed: 1994-06-27
Granted: 2001-09-11
Abstract: A baton projectile comprises a case (1) of low density polyethylene and a co re (2) of a soft material such as a thermoplastic gel modified rubber. An air gap (4) is optionally formed at the front end of the  baton projectile between the core (2) and the case (1).  Upon impact with a target at acceptable forces the air pocket (4) reduces the spe ed of sound of the impact shockwave to reduce the risk o f unacceptable bone injury to the target. At higher than acceptable impact for ces, the case (1) ruptures and the core (2) spreads out to radially disperse the excess impact energy and to present a larger impact area to the  target so that the risk of unacceptable penetration and  trauma injury to the target is reduced.
Patent CA-2169438-C (CA)
Title: Device for concentrating trace components in a liquid
Inventor: DAVISON WILLIAM
IPC: G01N30/00
Filed: 1994-08-12
Granted: 2002-07-30
Abstract: A probe device for use in  measuring trace quantities of a component in a li quid environment comprises: (i) a membrane (2) which is permeable to the component; and (ii) a layer of a material (4) capable of  binding the component and arranged to receive material which has permeated through the membrane (2) from a face (6) thereof juxtaposed to  the fluid environment.  The membrane (2) may for exampl e be a polyacrylamide gel and the material (4) an ion exchange resin.  The dev ice may be used, for example, for determining quantities  of trace metals in an aqueous environment.
Patent CA-2173147-C (CA)
Title: Anti-obesity agent
Inventor: SUZUKI KUNIO
IPC: A23L33/20
Filed: 1994-09-30
Granted: 1999-08-31
Abstract: Anti-obesity agents which comprise 3-ketosteroid compounds as an active ingredient are provided.  The anti-obesity agents of the present invention have a high anti-obesity effect with little or no side effects and toxicity.  Food products which contain anti-obesity agents comprising 3-ketosteroid compounds as an active ingredient, pharmaceutical compositions which comprise 3-ketosteroid compounds as an active ingredient and pharmaceutically acceptable carriers, and methods for preventing and treating obesity which comprise administering an effective amount of a 3-ketosteroid compound to a human are also provided.
Patent CA-2176319-C (CA)
Inventor: EWASCHUK WILLIAM JOHN
IPC: B27D1/08
Filed: 1996-05-10
Granted: 2001-07-31
Abstract: The invention provides a method of applying a veneer to a substrate having edges with a compound curve. The invention includes the steps of trimming the veneer to provide a peripheral margin and applying a stretchable releasable adhesive tape to the margin, applying an adhesive to the surfaces of the substrate, positioning the veneer over the substrate and securing the veneer in position, and subjecting the veneer to a substantially uniform pressure over thesubstrate. An embodiment for convex edges provides the further steps of providing one or more v-shaped relief cuts converging where the curved edge surface meets the main surface and applying a releasable adhesive tape to retain a butt joint between the edges of each relief cut. An embodiment for concave edges provides the further steps of providing one or more slits extending into the margin of the veneer parallel to the direction of the grain and applying a releasable adhesive tape over the relief cuts. The invention thus permits a single sheet of veneer to be applied over the main and edge surfaces of furniture and the like having concave or convex rounded or bullnose edges.
Patent CA-2184682-C (CA)
Title: Solid state device for generating electromagnetic wave in terahertz-band
Inventor: YAMANISHI MASAMICHI
IPC: H01S5/00
Filed: 1996-09-03
Granted: 2000-06-27
Abstract: For generating a highly efficient monochromatic terahertz-band electromagnetic wave, a solid state device including on a compound semiconductor single crystal substrate, a first distributed Bragg reflector, an exciton generating region provided on the first distributed Bragg reflector, and a second distributed Bragg reflector provided on the exciton generating region to constitute a resonator.  A pulsed light wave is made incident upon the device to generate an exciton which is created and annihilated periodically in time at an extremely high frequency.  Electron and hole of an exciton are spatially separated from each other to form a dipole by applying a static electric field across the exciton generating region.
Patent CA-2184773-C (CA)
Inventor: BUNKER THOMAS A
IPC: B23K9/10
Filed: 1996-09-04
Granted: 1999-12-21
Abstract: A method and apparatus for providing a welding output is disclosed. The apparatus includes an ac generator having a field winding, a welding output winding and an electronic field controller connected to the field winding. The controller receives a current feedback signal and a voltage feedback signal and shapes the output curve in response to the desired output command signals. According to one embodiment the controller also receives a field current feedback signal. The controller may shape the output curves to emulate a DC generator, for example by causing the welding output V-A curves to have multiple breakpoints and/or a substantially preset slope over a welding range wherein the preset slope does not vary over the output current range of the power supply. Also, the slope of the V-A output curve below the welding range may be different than the slope in the welding mange. An auxiliary output winding having a substantially constant voltage may be provided on the generator and the generator may be either single or three phase.
Patent CA-2188272-C (CA)
Title: Hybrid electricity and telecommunications distribution network
Inventor: BROWN PAUL ANTHONY
IPC: H04M3/00
Filed: 1995-04-20
Granted: 2009-07-07
Abstract: A telecommunications network is disclosed for linking a plurality of premise s, comprising, typically, a fibre optic or coaxial cable (130), and a plurality of electrical power cables (134) each connected to a respective one of the premises for supplying mains electrical power thereto. Each of the power cables (134) is also connected to the fibre optic or coaxial cable (130) so that telecommunications signals are transmissible between the fibre optic or coaxial cable and each of the p ower cables. A telecommunications signal is transmissible to the plurality of premises by being transmitted along the fibre optic or coax ial cable and subsequently along the respective power cable of each of the premises.