baber/WOPTO huggingface dataset:
Patent CA-2011825-C (CA)
Inventor: CLARK JOSEPH D
IPC: G06T15/00
Filed: 1990-03-09
Granted: 2001-04-10
Abstract: Apparatus and method for providing x, y and z values so as to construct  figures from  unit vectors  rotated in  three space wherein the x, y and z values result from processing construction and rotation parameters according to the following relationships:             .DELTA.X' = .DELTA. X COS (Gz) + .DELTA.Y SIN (Gz) .DELTA.Y' = - .DELTA. X SIN (Gz) + .DELTA.Y COS (Gz) .DELTA.Z' = .DELTA. Z where, .DELTA.X = COS (Rz) COS (Ry + Gy) .DELTA.Y = COS (Rz) SIN (Ry + Gy) SIN (Gx) - SIN (Rz) COS (Gx) .DELTA.Z = COS (Rz) SIN (Ry + Gy) COS (GX) + SIN (Rz) SIN (GX) X =  X + .DELTA.X', Y = Y + .DELTA.Y', Z = Z + .DELTA.Z' and, Rz, and Ry are construction rotation parameters for  the Z  and Y axes, respectively,  and  Gy,  Gx  and  Gz  are  global  rotation parameters for the Y, X and Z axes, respectively.  As used  in a graphics display  system, the invention provides offset values to an apparatus for summing  offset values  from a  specified point.          An apparatus  for providing  depth cuing  related to  the  offset values  may   be advantageously   included  in   an  alternative embodiment  for   apparatus  employing   the  principles  of  the invention.   Processed  x, y  and z  values, together  with color cuing information  may then  be  stored  in  a  memory  prior  to displaying the figure.
Patent CA-2012535-C (CA)
Inventor: TAKAI KAZUO
IPC: A61B1/00
Filed: 1990-03-19
Granted: 1995-02-07
Abstract: Remote Fiber Optic Medical Procedure and Device Abstract of the Disclosure A medical procedure involving direction of the operative end of a medical instrument (46) via observation through a remote small caliber fiber optic bundle (30) disposed through a prepositioned needle lumen (20).
Patent CA-2012809-C (CA)
Title: Digital signal clamp circuitry
Inventor: FLING RUSSELL T
IPC: H04N5/18
Filed: 1990-03-22
Granted: 1999-11-16
Abstract: A digital signal clamp circuit is realize using an adder and an up/down counter. The digital signal is coupled to one input of the adder and the counter output is coupled to a second input of the adder. The up/down counter is enabled to count only during signal intervals exhibiting the desired clamping level. The counter is controlled to count up or down depending on the polarity of the signal provided by the adder.      The count value in the counter is continuously applied to the adder to provide clamping. Using a truncated count value from the counter enhances clamping performance.
Patent CA-2019050-C (CA)
Title: Method and apparatus for steel making
Inventor: NABI GHULAM
IPC: C21B11/00
Filed: 1990-06-14
Granted: 1997-10-14
Abstract: This invention provides a method and appratus whereby steel of various compositions may be produced from iron ore and coal through a series of stages without the intermediate production of liquid iron.  A reforming reactor receives top gases from the steel making reactors, and converts them to high reduction potential gases which are returned to the steel making reactors.  The iron ore and reductants, such as coal, are charged to a controlled atmosphere reactor which may be an inclined rotary cylindrical shaft.  From the controlled atmosphere reactor the charge is moved to a potential shift reactor which is inclined or vertical and encounters increasing heat and rising gases for converting  the carbonised sponge into a semi-molten state.  The charge then passes to a high temperature reactor where it encounters the reducing gases from the reforming reactor and preheated oxygen to create temperature in which steel is made.  Hot gases from the  high temperature reactor pass through the PSR and the CAR and  are returned to the reforming reactors to complete the cycle.
Patent CA-2019600-C (CA)
Title: Multiple access satellite communication system for mini-earth station networks
Inventor: KOU YUKARI
IPC: H04L1/00
Filed: 1990-06-22
Granted: 1994-06-21
Abstract: ABSTRACT OF THE DISCLOSURE      A multiple access satellite communication system in which a plurality of mini-earth stations each transmits data packets to a hub earth station via a satellite over an inbound channel, while the hub station transmits to the mini-earth stations in a broadcast mode over outbound channels.  Each mini-earth station selectively uses a fixed assignement access method, random access method, and demand assignment access method, depending on the frequency of the transmission from a terminal connected thereto, the amount of transmitted data, and whether or not the transmission from the terminal is periodic.  The hub station outputs a reception response signal to the outbound channels by determining whether or not a conflict of data packets or a transmission error has occurred on the inbound channels.  Packets for re-transmission are sent out to the inbound channels by the demand assignment access method at all times, with no regard to the access method used at the time of transmission.
Patent CA-2020113-C (CA)
Title: Tree delimber with tree feeding means
Inventor: COTE JEAN-MARIE
IPC: B27B25/02
Filed: 1990-06-28
Granted: 1995-04-18
Abstract: A tree delimber having delimbing means and feed rollers for moving a tree past the delimbing means.  Three feed rollers are provided with one roller fixed on the machine and the other two rollers movable toward each other and the one roller to hold a tree between all three rollers so as to feed the tree.  The other two rollers are movable away from each other and the one roller to load or unload a tree to or from the rollers.    The delimber has a boom assembly with a sleeve, and a boom slidable through the sleeve.  Tree gripping means are mounted on the front end of the boom and the tree delimbing means are mounted on the sleeve.  The feed rollers are also mounted on the sleeve.
Patent CA-2023040-C (CA)
Title: Latch-operating mechanism for a panic egress device
Inventor: COLEMAN MICHAEL D
IPC: E05B65/10
Filed: 1990-08-09
Granted: 1997-10-07
Abstract: The mechanism is configured to operate both a primary latch bolt and secondary latches, and provides for immediate, ready egress for the side of a door to which the mechanism is mounted, but offers high security for the other, outside of the door. The latch bolt is directly controlled by a first linkage, and the secondary latches are directly controlled by a second linkage.  During egress, both linkages translate together, via a pin connection. However, a lost motion arrangement prevents retraction of either the bolt, or the secondary latches, if the other is compromised (or operated by a key or combination).  From the outside, high security side of the door, the latch bolt and the secondary latches must be retracted together.
Patent CA-2025413-C (CA)
Title: S-triazolo¬3,4-i|purine derivatives
Inventor: KARASAWA AKIRA
IPC: A61P7/10
Filed: 1990-09-14
Granted: 1997-11-04
Abstract: There are disclosed s-triazolo[3,4-i]purine derivatives represented by formula:     (see fig. I) wherein Y-Z represents  (see fig II)  or (see fig. III)  where R4 represents hydrogen, alkyl, substituted or unsubstituted aromatic heterocyclic group or substituted or unsubstituted aryl; and X2 represents oxygen, sulfur or NH; each of R1 and R2 independently represents hydrogen, alkyl, cycloalkyl, aralkyl or substituted or unsubstituted aryl;  R3 represents alkyl, cycloalkyl, aralkyl or substituted or unsubstituted aryl;  X1 represents oxygen or sulfur;  and  ~ represents a single bond or a double bond or pharmaceutically acceptable salts thereof.
Patent CA-2025416-C (CA)
Title: Lubricating oil compositions containing novel combination of stabilizers (no. 2)
Inventor: COHEN STEPHEN CEDRIC
IPC: C10N40/30
Filed: 1990-09-14
Granted: 1999-06-22
Abstract: Lubricant compositions are disclosed in which a synergistic combination of low-volatility tri-substituted phosphite and selected substituted isocyanurate phenolic stabilizers  provide  surprisingly effective  antioxidant qualities to lubricating oils selected from hydrotreated oils,  poly-.alpha.-olefin  oils,  paraffinic  white  oils  and mixtures thereof.
Patent CA-2030103-C (CA)
Title: Technique for stimulating long intervals
Inventor: MOHAUPT HENRY H
IPC: E21B37/08
Filed: 1990-11-15
Granted: 1994-10-18
Abstract: A gas generating type fracturing tool is designed to work on long productive intervals and includes a series of separate propellant charges, an igniter for initiating combustion of one of the charges and means for transferring combustion from one charge to the next.  In one embodiment, combustion of the charges occurs one after another with little or no delay between successive charges.  In other embodiments, a delay is incorporated  in  the  combustion  train between  successive charges.  Some embodiments are specifically designed to unplug uncemented slotted liners and have very small gas generation capability.
Patent CA-2030573-C (CA)
Inventor: LAI TA-WANG
IPC: C09K8/72
Filed: 1990-11-22
Granted: 1994-05-03
Abstract: ABSTRACT      The production of oil or gas from a subterranean formation is enhance by injecting into the formation, such as in acidized fracturing, an aqueous fluid containing as a viscosifier a crosslinked vinylamine polymer.  Acidizing fluids are provided containing HCl and a viscosifying amount of a gel of the crosslinked polymer, preferably poly(vinylamin) crosslinked with a dissocyanate, a polyepoxide or epichlorohydrin.
Patent CA-2031549-C (CA)
Inventor: BENGSTON JON E
IPC: C23C18/30
Filed: 1990-12-05
Granted: 1998-04-28
Abstract: Conductive surfaces such as copper and/or tungsten surfaces, particularly copper circuitry areas of printed circuit board substrates or fused tungsten circuitry areas of fused tungsten-ceramic packages,  are activated for receipt of electroless nickel plating thereon by providing the surfaces with particulate zinc metal, particularly by contact of the surfaces with an aqueous suspension of particulate zinc metal.
Patent CA-2031679-C (CA)
Title: Non-aqueous dispersions
Inventor: RAO MADHUKAR
IPC: C08L101/06
Filed: 1990-12-06
Granted: 2003-04-08
Abstract: This invention relates to high solids alkyds, non-aqueous disper-sions, and coating compositions containing those alkyds and non-aqueous dispersions, having non-volatile materials contents greater than about 75% NVM, with very law volatile organic contents of less than 305 g/1, which exhibit excellent stability, viscosity and tack-free and dry times when formulated as air dry coating compositions.
Patent CA-2031910-C (CA)
Title: Preparation of flexible, soft polyurethane foams having viscoelastic, structure-borne soundproofing properties, and polyoxyalkylene-polyol mixtures which can be used for this purpose
Inventor: LUTTER HEINZ-DIETER
IPC: C08G18/66
Filed: 1990-12-10
Granted: 1998-06-02
Abstract: The present invention relates to a process for the preparation of flexible, soft polyurethane foams having viscoelastic, structure-borne sound-proofing properties in a temperature range of from -20°C to +80°C by reacting a)   a polyoxyalkylene-polyol mixture containing ai)  block polyoxypropylene-polyoxyethylene-polyol mixture having a hydroxyl number of from 14 to 65 and containing from 2 to 9 % by weight of terminal  ethylene oxide units, based on the weight of the polyoxypropylene units, prepared by anionic polymerization, at elevated temperatures, of 1,2-propyleneoxide onto an initiator molecule mixture having a mean functionality of from 2.3 to 2.8, comprising water and ylycerol and/or trimethylolpropane, and polymerization of acylene oxide onto the resultant polyoxypropylene adduct, and aii) one or more difunctional and/or trifunctional polyoxypropylene-polyoxyethylene-polyol containing from 60 to 85 % by weight of oxyethylene units, based on the total weight of polymerized alkylene oxide units, and having a hydroxyl number of from 20 to 80, and b)   if desired low-molecular-weight chain extenders with c)   organic and/or modified organic polyisocyanates in the presence of d)   catalysts, e)   blowing agents, preferably water, and, if desired, f)   auxiliaries and/or additives, and to the polyoxyalkylene-polyol mixtures (a) which can be used for this purpose.
Patent CA-2039143-C (CA)
Title: Convergence control system for multiple vertical formats
Inventor: RODRIQUEZ-CAVAZOS ENRIQUE
IPC: H04N9/28
Filed: 1990-08-22
Granted: 2000-04-25
Abstract: A convergence control system for multiple vertical modes or formats, having respective rasters with different vertical heights, comprises a selector (4) for initiating operation in one of the available vertical modes, and a circuit (40) for generating convergence correction signals responsive to the selector. The correction signals are generated from known convergence correction values and by interpolation of the known values. The convergence correction values may be stored and sequentially processed by digital circuits and the interpolation may be undertaken by analog circuits. The circuit for generating convergence correction signals may comprise a digital data store (46) for different sets of convergence correction values, for generating selectable sets of correction signals for different vertical modes or formats, for example normal and overscanned modes. The sets of convergence correction values define different sets of grid lines and rows of horizontal scan lines. Adjacent ones of the grid lines are spaced from one another at different intervals for different vertical formats. The intervals between adjacent horizontal grid lines are greater for vertical formats having rasters with greater vertical heights. An interpolating circuit (40) for processing the known convergence correction values is responsive to the horizontal deflection circuit. The interpolating intervals can be adjusted to correspond to the horizontal scanning rate. The number of interpolating intervals is matched to the number of horizontal scan lines in each row.
Patent CA-2047361-C (CA)
Title: Polyvinylchloride composition and stabilizers therefor
Inventor: BAE KOOK-JIN
IPC: C08K5/053
Filed: 1991-07-22
Granted: 2002-11-05
Abstract: A composition useful for the thermal stabilization of polyvinylchloride resin comprising an alkyl and aryl-substituted beta-diketone, mannitol and a mixture of magnesium and zinc salts of benzoic and fatty aliphatic acids is disclosed. Also disclosed is polyvinylchloride resin effectively stabilized with the stabilizer composition and a method for effectively stabilizing polyvinylchloride from discoloration at elevated temperatures.
Patent CA-2053167-C (CA)
Title: Cylindrical lock assembly
Inventor: STRICKLAND KENNETH W
IPC: E05B3/00
Filed: 1991-10-10
Granted: 1999-04-20
Abstract: A cylindrical lock assembly includes an inside subassembly and an outside subassembly which are assembled with a door.  Each subassembly includes a rose liner, a return spring cassette, a rose, a lever and a lever insert. The inside subassembly also includes a turn button and the outside subassembly includes a cylinder lock.  The subassemblies are assembled onto respective sleeves of a chassis which facilitates the retraction of a latchbolt upon operation of either of the levers.  Cassettes are mounted in the lock assembly by a pair of screws with one screw being inserted from one side of the door and the other screw being inserted from the other side of the door.
Patent CA-2056696-C (CA)
Title: Recessed cooktop appliance system
Inventor: PICKERING MARK A
IPC: F24C7/00
Filed: 1991-11-29
Granted: 1999-08-17
Abstract: A countertop cooking unit provides an upper surface that is level with the countertop and has removable interior parts that are exposed to the residues of cooking operations. A cooktop housing is supported by the countertop and forms a burner box having an open top level with the countertop. A removable drip pan is recessed below the open top of the housing within the burner box and is removably carried by the housing at its peripheral edges. A downdraft ventilation plenum is recessed below, and includes an air flow opening below, the open top of the housing and is carried, at least in part, by the burner box, and at least one heating unit is recessed and removably carried within the removable drip pan. In grilling units, a removable grill pan liner is recessed within, and removably carried by, the drip pan at its peripheral edge and removably carries a grill heater recessed within its periphery. The countertop cooking unit provides substantially reduced heat transfer to the countertop during cooking operations, in part as a result of a plurality of air flow openings at the periphery of the removable drip pan.
Patent CA-2057468-C (CA)
Title: Structure of an adjustable garment hanger structure
Inventor: CHEN HSIN-HUI
IPC: A47G25/52
Filed: 1991-12-10
Granted: 1999-02-16
Abstract: An  adjustable  garment  hanger  structure  comprises  a dihedral support frame (10) having a pair of elongate lateral members (11a,11b) joined at the ends and aligned at an obtuse angle, a generally bracket shaped clamping frame (20) providing under the support frame,  and a pair of elongate shoulder members (30) slidingly mounted on respective lateral members thereof.  The position of each shoulder member depends on an elastic finger engaged among a row of catch recesses  (112) provided in a side portion of a corresponding lateral member, with the shoulder member being slidingly positionable thereon to allow for accommodation of different sized garment articles. The  clamping  frame  includes  two  vertical  bars  (21a,21b) adjoined to the undersides of respective lateral members, a transverse bar (22) connecting the lower ends thereof, and an elongate clamping member (23) slidingly mounted on the vertical bars  in  a parallel  arrangement  over  the  transverse bar. Appropriate garment articles can be folded over the transverse bar and held in place by the clamping member.  A hook shaped holder (60) is swivelably attached to the apex of the support frame for attachment to a holding rod.
Patent CA-2061336-C (CA)
Title: Alkaline resol phenol-aldehyde resin binder compositions
Inventor: SMITH GARRY
IPC: C08L61/06
Filed: 1992-02-17
Granted: 2003-12-02
Abstract: A binder composition for producing articles of bonded particulate material such as foundry moulds or cores comprises an alkaline aqueous solution of a resol phenol-aldehyde resin, an oxyanion which can form a stable complex with the resin, and a phenyl ethylene glycol ether. The binder composition has an alkali to phenol molar ratio of from 1.5:1 to 2.5:1 and the amount of alkali present in the solution is sufficient to substantially prevent stable complex formation between the resin and the oxyanion. Bonded articles are produced by passing carbon dioxide gas through articles formed from a mixture of particulate material and the binder composition so as to produce stable complex formation and curing of the resin.
Patent CA-2078999-C (CA)
Title: Halohydrocarbon-free delayed release lacquer solution for pharmaceutical preparation
Inventor: WALZ MICHAEL
IPC: A61K9/22
Filed: 1992-02-26
Granted: 2003-06-10
Abstract: The invention relates to a delayed-release lacquer solution for pharmaceutical preparations which is characterised in that it is free from halogenated hydrocarbon.
Patent CA-2080169-C (CA)
Title: Fungicidal silicon-containing compounds, their preparation and their agrochemical and medicinal uses
Inventor: TOBITSUKA JUNZO
IPC: C07F7/08
Filed: 1992-10-08
Granted: 2004-07-06
Abstract: Compounds of formula (I): <SEE FORMULA> wherein: A is 1,2,4-triazol-1-yl or imidazol-1-yl; n is 0, 1, 2 or 3; X is halogen, phenyl, alkyl, haloalkyl, alkoxy, or haloalkoxy, or (X) n is alkylenedioxy; R1 is alkyl or phenyl; and R2 and R3 axe each alkyl; and salts thereof have valuable anti-fungal activity.      Certain intermediates in the preparation of these compounds are also disclosed.
Patent CA-2080370-C (CA)
Title: Disposable infusion apparatus with peristaltic pump
Inventor: SANCOFF GREGORY E
IPC: F04B43/08
Filed: 1991-04-29
Granted: 1998-07-14
Abstract: A disposable infusion apparatus (10) includes proximal, distal and intermediate segments of IV tubing (14) connected via couplings (20, 26). The intermediate segment (34) has a length sufficient for operative engagement with a pumping member (32) of a peristaltic pump throughout a pumping stroke thereof. The intermediate segment (34) further has a maximum Durometer of seventy-five on the Shore A scale. The pumping member (32) includes a plurality of fingers (32a) mounted in side-by-side substantially parallel relationship for individual reciprocation. Motor driven cams (36) individually reciprocate respective ones of the fingers in a predetermined timed sequence so that when the linearly disposed intermediate segment (34) is squeezed by the fingers (32a), intravenous fluid in the tubing will be pumped therethrough. The disposable apparatus (10) further includes a door (40) connected to opposite ends of the intermediate segment (34) and which is releasably loadable in a case (12) to place the intermediate segment into operative engagement with the pumping member.
Patent CA-2101028-C (CA)
Title: Portable gasoline container
Inventor: MITCHELL ROBERT K
IPC: B65D25/54
Filed: 1993-07-21
Granted: 1999-03-23
Abstract: A pour spout for conducting a liquid, such as fuel, from a portable ventless container to a tank which includes a mechanism for enabling a user to readily determine when the tank is full and when fluid flow from the portable container into the tank has stopped. The mechanism includes a window in a wall of the container and a deflector connected to the pour spout which extends into the interior of the container for directing air bubbles entering the container through the pour spout toward the window. The window permits a user to visually determine when the displaced air bubbles stop flowing which is an indication that the tank is full and flow of the liquid has stopped. The window may be in the form of a translucent thin wall section, a transparent pane mounted in the wall, or the container itself may be translucent throughout so that the displaced air bubbles may be seen when directed to a location adjacent a wall. The container also includes a carrying handle and a pouring handle located in such a manner that the center of gravity of the container is located closely adjacent to a vertical line passing through the point of support of a user's hand on the pouring handle during a pouring operation.
Patent CA-2103988-C (CA)
Inventor: TAKANO TOSHIYA
IPC: G06F9/48
Filed: 1993-08-12
Granted: 2000-06-13
Abstract: Shadow registers for processing program interrupts are provided in a CPU. When control shifts to an interrupt routine, the shadow registers axe used by the interrupt routine by switching from the use of ordinary registers, the use of the shadow registers. The ordinary registers are excluded from use during the execution of the interrupt.      Subsequent to the completion of the interrupt, the ordinary registers are re-used without the necessity of the storing and re-storing the contents of the ordinary registers.
Patent CA-2112218-C (CA)
Title: Locking join for boxes and apparatus for making the join
Inventor: MCGRATH STEPHEN EDWARD
IPC: B65D5/42
Filed: 1993-12-20
Granted: 1999-08-03
Abstract: A non-releasable mechanical join useful for permanent joins of plastics material cartons is formed by a row of a plurality of engagement tabs interlocked in a complementary row of slots. The engagement tabs have heads able to pass through the slots in one direction but unable to return in the other direction. The tab heads may be formed as arrowheads, the barbs of which act against edges of the slots are convexly arcuate towards the approaching arrowheads. This may help to provide secure engagement.      The greater number of tabs and slots, the greater may be the permanence of the join.