baber/WOPTO huggingface dataset:
Patent CA-2062936-C (CA)
Title: Polygon fragmentation method of distortion correction in computer image generating systems
Inventor: KELLY WILLIAM ARTHUR
IPC: G06T3/00
Filed: 1992-03-12
Granted: 2002-12-10
Abstract: A method for distortion correction of computer-generated textured images maps vertices and texture coefficients from viewer space to projector space, so that environmental objects are pre-distorted upon the projection raster in order to appear in their proper form and perspective when the raster is projected onto a curved surface in viewer space, and viewed therefrom. Distortion correction is carried out by utilizing a piecewise-linear approximation for smoothly, continuously and closely approximating the required pre-curvature. The viewing space raster is subdivided into a number of triangles, within each of which a linear approximation is applied to the image mapping: the raster faces are first subdivided along the lines of a rectangular grid and the face fragments falling within each rectangle are then subdivided along the grid diagonal. This produces face fragments which are small enough so that a linear approximation provides an accurate transformation of each fragment. Distortion maps, typically computed off line and stored in a database memory, are utilized to project the edges and texture modulation gradients from view space back into projector space, so that the edges and texture patterns can now be matched at intersections of adjacent triangles, in a manner to be substantially devoid of any abrupt changes, and thus be properly pre-distorted.
Patent CA-2064267-C (CA)
Title: A filter regenerating apparatus for an internal combustion engine
Inventor: NOBUE TOMOTAKA
IPC: H05B6/80
Filed: 1992-03-27
Granted: 1999-12-28
Abstract: An apparatus for regenerating a filter provided to scavenge particulate which is included in exhaust gas discharged from an internal combustion engine. The apparatus includes a heating room accommodating the filter, a heat-combusting device for heat-combusting the particulate scavenged by the filter, a microwave generating device for generating a microwave to be supplied to the heating room, a slit provided in a wall of the heating room, a microwave detecting device for detecting the energy level of the microwave coupled through the slit, and a control section for controlling the heat-combusting device.
Patent CA-2067189-C (CA)
Title: Dynamic service processor exchange architecture
Inventor: FLON ROBERT
IPC: G06F11/00
Filed: 1991-07-24
Granted: 1995-05-23
Abstract: The present invention relates to an architecture for service processor dynamic swapping. Architecture for service processor dynamic swapping, comprising a first service processor linked by a network and a maintenance unit (CMU) to a central system (4), the said service processor (1) being linked to a second service processor (2) by the network and the maintenance unit (CMU), characterised in that each service processor in addition comprises exploitation system programs, a supervisory program and at least one service broken down into two applications, one "body" composed of the algorithm of the program, the other "presentation" comprising the interface with the operator permitting display of the window type with a menu caption, and MSH means (10, 20) of communications processing with the other service processors, via the maintenance unit (CMU), a supervisory program managing the priority numbers of the services and initiating the services, the said supervisory program having access to a configuration table for the system (IRT, ECF). <IMAGE>
Patent CA-2067888-C (CA)
Title: Cosmetic composition
Inventor: NATRAJ COLLUR VISWESWARIA
IPC: A61K6/00
Filed: 1992-05-01
Granted: 1997-06-03
Abstract: A composition suitable for topical application to human skin for reducing the damaging effects of ultra-violet light on skin comprises:     (a)  an effective amount of a triester of citric acid having the  structure (1):       (1) where R1, R2 and R3 each independently represent a branched or unbranched alkyl,alkenyl, aryl, alkylaryl or arylakyl group, each said group being optionally substituted and having from 1 to 18 carbon atoms, R4 represents -H, or a branched or unbranched saturated or unsaturated acyl, alkyl, aryl, alkylaryl or arylalkyl group, each said group being optionally substituted and having from 1 to 18 carbon atoms;  and (b)  a cosmetically acceptable vehicle for the citric acid ester; and (c)an effective amount of a sunscreen agent, with the proviso that in the case where the sunscreen agent is an inorganic sunscreen, it has an average particle size of less than 100µm.
Patent CA-2069385-C (CA)
Inventor: GOWING JIM
IPC: A01K83/00
Filed: 1992-05-25
Granted: 1995-12-26
Abstract: A treble fishing hook includes an elongated shank which has a first end and a second end.  An eye is secured to the first end of the shank.   Three barb-carrying bight portions are secured to the second end of the shank with the three bight portions being equally spaced about the axis of the shank and separated by an angle of about 120.  Each of the bight portions is bent outwardly from the shank so as to lie in a plane which extends at an angle of from about 14 to about 20 to the axis of the shank.  A barb is carried on each of the bight portions, and each barb is angularly displaced out of the plane of the bight portion.
Patent CA-2074678-C (CA)
Title: Copper smelting system
Inventor: DIAZ CARLOS MANUEL
IPC: C22B15/00
Filed: 1992-07-27
Granted: 1997-02-11
Abstract: A system for continuous smelting of sulfidic copper concentrate in which an oxygen flash furnace is operatively connected with a continuous converter and the continuous converter is operatively connected with a finishing furnace.
Patent CA-2076941-C (CA)
Inventor: CRAMER GEORGE O
IPC: E04H5/02
Filed: 1992-08-26
Granted: 1995-05-02
Abstract: A clean environment enclosure assembly (10) prevents contaminants from reaching unfinished products during the manufacturing process.   The clean environment enclosure assembly (10) includes a plurality of frames (16) which are secured to each other using various shaped brackets (60, 62, 64) to form a structural frame.  Sheets of plastic (22) extend across each of the plurality of frames (16) to complete the housing (14).  The sheets of plastic (22) are secured to side members (18) of the frames (16) by elongated caps (24) which run the length of the side members (18).  The caps (24) have  two  arms  (30,  32)  which  engage  the  two substantially parallel side walls (42) of the side members  (18) wherein detents  (38,40)  of the two arms  (30,  32)  engage  indents  (44,  46)  of  the parallel side walls (42) preventing the cap (24) from freely disengaging the side member (18).  The sheets of plastic (22) are sandwiched between the cap (24) and the side members (18).
Patent CA-2078151-C (CA)
Title: Walking transport vehicle
Inventor: LOBACHEV VLADILEN I
IPC: B62D57/00
Filed: 1991-03-13
Granted: 1993-10-19
Abstract: ABSTRACT OF THE DISCLOSURE A walking transport vehicle that is comprised of a platform with two closed guides mounted on its bottom surface, said guides having rectilinear sections and curved sections with a common center of curvature. Movably mounted in the guides are the upper ends of extensible and retractable legs.  The transport vehicle also comprises of a leg drive mechanism to displace legs along the guide incorporating a continuous band conveyor with conveyor branches passing respectively along the sections of the guide, and a similar leg drive unit to displace legs along the guide.
Patent CA-2079270-C (CA)
Title: Multi-layer high opacity film structure of improved whiteness and machinability
Inventor: WOOD RONALD CLARK JR
IPC: B32B27/20
Filed: 1992-09-28
Granted: 2004-07-13
Abstract: A multi-layer opaque, biaxially oriented polymeric film structure.      The film structure includes a thermoplastic polymer matrix core layer having a first surface and a second surface, within which is located a strata of voids, positioned at least substantially within a substantial number of the voids is at least one spherical void-initiating particle which is phase distinct and incompatible with the matrix material, the void space occupied by the particle being substantially less than the volume of the void, the population of the voids in the core being such as to cause a significant degree of opacity, a first thermoplastic polymer skin layer having a first surface and a second surface, the first surface of the first skin layer adhering to the first surface of the core layer, the first skirt layer including up to about 12% by weight of titanium dioxide contact pigment, and a second thermoplastic polymer skin layer having a first surface and a second surface, the first surface of the second skin layer adhering to the second surface of the core layer, the second skin layer including finely divided, uniformly dispersed inorganic material in an amount effective to impart antiblocking characteristics and decrease the inherent film-to-film coefficient of friction at the second surface of the second thermoplastic polymer skin layer.
Patent CA-2079748-C (CA)
Title: Hydrophilic polyurethane membranes for electrochemical glucose sensors
Inventor: ALLEN DOUGLAS J
IPC: G01N27/40
Filed: 1992-10-02
Granted: 2003-09-30
Abstract: Homogeneous membranes permeable to oxygen and glucose composed of hydrophilic polyurethanes that are capable of absorbing from 10 to 50% of their dry weight of water.      Variations in the composition of the hydrophilic polyurethanes make possible the fabrication of membranes in which the ratios of the diffusion coefficients of oxygen to glucose can be varied over a wide range. These membranes can be used in the fabrication of an electrochemical glucose sensor intended fox use in vivo as an aid in the treatment of diabetes mellitus.
Patent CA-2081080-C (CA)
Inventor: GAULTIER PHILIPPE
IPC: G01M15/04
Filed: 1992-10-23
Granted: 1998-08-11
Abstract: A method for the detection of reciprocating machine  faults and  failures  comprises  acquiring data representing   velocity   variation   waveforms   of   a reciprocating machine,  transforming such data using a micro-computer to produce torque waveforms corresponding to the acquired machine velocity waveforms,  using an optimization algorithm to obtain a number of parameters corresponding to the number of cylinders of the machine for both compression and expansion cycles of the machine, and presenting the optimized parameters and transformed torque waveforms to a user to ientify the faults and failures of the machine.
Patent CA-2082112-C (CA)
Title: Current ratio device and toroidal core assembly therefor
Inventor: SO EDDY
IPC: G01R15/18
Filed: 1992-11-04
Granted: 1996-12-03
Abstract: A current ratio device is used for forming a current transformer that can accurately scale down high currents to usable metering levels.  The transformer has associated circuitry that renders it capable of functioning not only with ac and a mixture of ac and dc, but also when dc alone is present in the primary winding.  The device employs a toroidal core and winding assembly that is cut along a plane containing the toroidal axis through a pair of diametrically opposite sections of the assembly that contain no windings, in order to separate the device into a pair of sub-assemblies that can be readily placed over a single turn primary, e.g. a busbar, without dismantling the same.   Once so placed, the sub-assemblies can then be clamped together again to reform the device and the winding portions externally connected to the circuitry, the latter being such as to avoid the accuracy of measurement being significantly effected by the unavoidable increase in core reluctance that will have resulted from the separation of the core assembly into two sub-assemblies.
Patent CA-2085340-C (CA)
Title: Balloon with additional interior display surfaces
Inventor: CASALE ANGELO JOSEPH
IPC: A63H27/10
Filed: 1991-06-14
Granted: 1997-03-04
Abstract: A balloon (1) is disclosed, with addition-al interior display surfaces, useful in advertising and for novelties and toys and recreational equipment.  The additional display surfaces are not curved like the outside of a balloon.  A sheet of flexible material (2) is adhesively connected at a plurality of points (A-H) on its perimeter to the inside wall of the balloon, dividing the inte-rior volume of the balloon into two chambers. The balloon and sheet may be substantially in-elastic, such as a beach ball, or stretchable, such as a novelty latex balloon.  In a preferred em-bodiment, the sheet is a porous, stretchable, floccose material which simulates having a spider web inside the balloon.  This can be used as a Hallowen decoration or inside Fun Houses or Spook Houses at amusement parks.
Patent CA-2088561-C (CA)
Title: Press for compressing barrels of contaminated waste
Inventor: PREVOST JACQUES
IPC: B30B9/30
Filed: 1993-02-01
Granted: 1997-02-18
Abstract: Press for compacting containers (28) of contaminated waste, comprising a frame including a base (1) and an upper crosshead (3) connected to the base by means of vertical supports (4), and a compacting assembly comprising a principal cylinder (5) linked to the upper crosshead (3), a principal piston (6), located in the said principal cylinder and determining a principal chamber (11) between the said piston and the upper end plate (10) of the said principal cylinder, the said principal piston being extended by a rammer rod (7), and a skirt (8) intended to surround the said container (28) at the time of the latter's compacting by the rammer, characterised in that the said skirt (8) is extended at its upper end by a tubular piston (9) accommodated in the said principal cylinder (5) between the latter and the said rammer rod (7) and determining an intermediate chamber (13) between itself and the principal piston (6) and an annular chamber (14) between itself and the lower end of the principal cylinder (5), the said principal chamber (11) and the said annular chamber (14) including pipes (12, 17) so that they can be supplied with control fluid, and in that the said intermediate chamber (13) includes a sliding leaktight device permitting its supply with control fluid. <IMAGE>
Patent CA-2089343-C (CA)
Inventor: ISAZA FERNANDO J
IPC: A61M16/00
Filed: 1993-02-11
Granted: 2005-06-14
Abstract: The present invention provides a system and method for providing a correction to a flow control signal to a flow control valve in a ventilator system. The correction component sums the errors in the flow rate actually delivered as compared with the desired flow rate for each control interval in a breath with the sum of past errors corresponding to control intervals in past breaths to generate a corrected command flow signal to the flow control valve.
Patent CA-2095538-C (CA)
Inventor: PRUETT WAYNE P
IPC: C08L67/02
Filed: 1991-11-12
Granted: 1997-10-21
Abstract: Nouvelles compositions de polyesters renfermant des colorants à base de  phtalocyanine-sulfonamide de cuivre, copolymérisés dans ces compositions. Sont également présentés des concentrés colorés amorphes, des concentrés colorés partiellement cristallisés et des concentrés colorés semi-cristallisés. Ces compositions de polyesters sont particulièrement utiles pour les matières d'emballage colorées ainsi que pour les colorants à usage personnel et médical et les produits de soins à domicile, où il est important que le résidu de colorant ne soit pas extractible.
Patent CA-2096185-C (CA)
Title: One-pass seedbed preparation device and system
Inventor: RAWSON RAY
IPC: A01B49/06
Filed: 1993-05-13
Granted: 1996-02-13
Abstract: A coulter blade assembly for use with a farm implement, which assembly comprises a first coulter unit, a second coulter unit, and a third coulter unit, all units mounted to the implement in a triangular arrangement in plan; with the first coulter unit being a lead unit, the second coulter unit trailing and to one side of the lead unit, and the third coulter unit trailing and placed to an opposite side of the second coulter unit for forming with said other coulter units a seedbed, and a substance applicator mounted on the third coulter unit for applying the substance onto the seedbed, and optionally a second substance applicator mounted on the second coulter unit for applying another substance onto the seedbed separated laterally from the other substances.  The invention includes further a process of preparing a seedbed by moving and rotating implements such as coulter blades into the ground in a particular triangular relationship in conjunction with one or more substance applications concurrently therewith.
Patent CA-2097300-C (CA)
Inventor: NOZU RIKUROU
IPC: F03B13/14
Filed: 1992-10-21
Granted: 1998-05-19
Abstract: A fluid energy conversion apparatus including a fluid path assembly having an outside guide assembly, a cylindrical wall inside surface and at least one inside guide assembly is provided.  There is also a cylindrical partition wall which extends between the outside guide assembly and the inside guide assembly with its central axis set on the central axis of the cylindrical wall inside surface, the cylindrical wall inside surface of the outside guide assembly and the cylindrical partition wall defining an annular outside path therebetween and the outside peripheral surface of the inside guide assembly and the cylindrical partition wall defining an annular inside path therebetween.  There is a plurality of support struts connecting the outside guide assembly, the inside guide assembly and the cylindrical partition wall.          Also included is a first rotary member that includes an annular hub located adjacent a first end portion of the inside guide assembly and a second rotary member having a second annular hub located adjacent a second end portion of said inside guide assembly.  Also included are stator blades, a fluid pressurizing-accelerating device and exhaust nozzles formed in both sides of each of the first turbine rotor blades in a position adjacent to a trailing edge of each of the first turbine rotor blades.
Patent CA-2098414-C (CA)
Inventor: KARIM FARAYDON
IPC: G06F9/38
Filed: 1993-06-15
Granted: 1997-05-13
Abstract: A super scalar computer architecture and method of operation for executing instructions out-of-order while managing for data dependencies, data anti-dependencies, and integrity of sequentiality for precise interrupts,  restarts and branch deletions. Multiple registers and tables are used to rename and recycle source and destination addresses referenced to a general purpose register. Access to destination data in the general purpose  register  is  locked until  the instruction associated with the data is fully executed. Renaming of both the source and destination registers avoids anti-dependency problems while integrity of sequentiality is maintained by ordered retirement of instruction results consistent with the order of the input instructions.  The system and method operate  with  multiple  input  instructions  and  multiple execution units. The control words generated by the renaming of   the   source   and   destination registers   differ insignificantly from the  original  instructions,  obviating the practice of adding status and sequence information to processor control words.
Patent CA-2102369-C (CA)
Title: Data recording apparatus
Inventor: SEKI TAKAHITO
IPC: H04N9/804
Filed: 1993-11-03
Granted: 2002-06-11
Abstract: Digital data representing a compressed image is separated into priority data and normal data, and formatted so that the priority data is repeatedly recorded on a magnetic tape.      The transmission rate of the digital data is compared with the recording rate on the magnetic tape to control the number of repetitions of the priority data.
Patent CA-2110656-C (CA)
Title: Method for the automatic insertion or removal of a calling number identification (cnid) blocking prefix from within a telephone number in a personal computer based telephone management system
Inventor: DETERING GREIG R
IPC: H04M1/27485
Filed: 1993-12-03
Granted: 2002-04-09
Abstract: With Calling Number Identification (CNID) service, Frequency Shift Keying (FSK) data is sent over the tele-phone lines to the telephone service customer. A tele-phone subscriber may prevent their name/number from being transmitted to the party they are calling on a per call basis by dialing a prefix before they dial the desired number. The present invention allows for the automatic insertion/removal of that prefix in the number stream when the called party's number is dialed. This feature is accomplished by inserting a $ character into the dial-ing sequence. If the blocking feature is enabled, the $ is translated to the numeric sequence necessary to pre-vent the transmittal of one's telephone number. In the alternative, the $ is translated to a meaningless delim-iter if the feature is disabled.
Patent CA-2121200-C (CA)
Inventor: TRAINA JOHN E
IPC: G01F1/46
Filed: 1994-04-13
Granted: 1998-10-13
Abstract: A probe (10, 110) for measuring fluid velocity through a conduit (61, 161) has a pitot tube (1, 101) connected to a multiple channel cylindrical conduit (14, 114) which is placed within a tubular housing (12, 112), Drive motors are provided to permit precise rotation and longitudinal movement of the cylindrical conduit (14, 141) and attached pitot tube (1, 101) in the conduit (61, 161), typically a stack or duct.  At least one differential pressure gauge is connected to the cylindrical conduit (14, 114).  A computer (30) directs movement of the cylindrical conduit (14, 114), receives differential pressure and static pressure readings from the differential pressure gauge and utilizes that data to calculate flow of the fluid through the conduit.  The device is particularly useful for measuring stack gas flow which flow can be utilized to determine emissions of pollutants.
Patent CA-2123044-C (CA)
Title: Feeding device for gas swept sized reduction machines
Inventor: PALLMANN WILHELM
IPC: B02C23/08
Filed: 1994-05-06
Granted: 1998-06-23
Abstract: A feeding device is disclosed for feeding cellulose material, such as wood chips to gas swept size reduction machines, and wherein the elimination of foreign particles from the material to be crushed is mainly achieved by pneumatic screening. The device includes a screening passage into which widely spread input material trickles slowly over a slide, having an angle of inclination .beta. is slightly greater than a friction-angle whose value is determined from its surface roughness. The screening passage is impacted by an air current generated by a cross current fan and which is directed, along a channel, roughly tangentially onto a guiding wall. The guiding wall is arranged at an angle of inclination ~, selected so that the guiding wall functions as a pneumatic sorting table, and where it forms with the channel a discharge slit for the foreign particles. The lateral spread of the input material is accomplished in the upper area of the feeding device by cascading surfaces which are arranged at an angle of inclination .alpha., and which are covered with fine mesh screens to eliminate foreign particles of such a fine grain that they may not be effectively pneumatically screened.
Patent CA-2130753-C (CA)
Title: Electrophoretic display panel and associated methods providing single pixel erase capability
Inventor: KRUSOS DENIS A
IPC: G02F1/1679
Filed: 1993-01-29
Granted: 1998-07-21
Abstract: A tetrode type electrophoretic display (10) includes local anode lines (32) disposed perpendicular to the grid lines (20) and having a tined configuration (33). In operation, the local anode (32) may be used to write and erase selected independent pixels by applying appropriate voltages (36) to the various electrodes (26, 28, 20, 18, 32) of the display in the proper sequence. The tetrode employed preferably includes an intermediate mesh (28) to permit maintaining displayed images after power removal.