baber/WOPTO huggingface dataset:
Patent CA-1316704-C (CA)
Title: Method and apparatus for monitoring cloud point
Inventor: TSANG CHARLES Y
IPC: G01N25/04
Filed: 1988-02-10
Granted: 1993-04-27
Abstract: ABSTRACT OF THE DISCLOSURE      Apparatus for monitoring the cloud point of a liquid comprises a light-proof chamber, a liquid sample-receiving receptacle within the chamber having an open top and having a bottom formed by a reflective surface; the reflective surface being in thermal contact with a thermoelectric cooling device. The chamber allows access to the receptacle so that sample liquid can be placed therein.  A light beam source is located to direct a beam of light onto the surface at an incident angle so that light from the beam is reflected.  A light detector is arranged so as to detect scattered light which is produced when solid material forms in the liquid as it is cooled.
Patent CA-1339909-C (CA)
Inventor: TOKUNAGA HIROYUKI
IPC: H01L21/20
Filed: 1988-03-25
Granted: 1998-06-16
Abstract: A process for selective formation of a III-V group compound film comprises applying a compound film forming treatment, in a gas phase including a starting material for supplying the group III atoms of Periodic Table and a starting material for supplying the group V atoms of Periodic Table, on a substrate having a non-nucleation surface (SNDS) with small nucleation density and a nucleation surface (SNDL) with a larger nucleation density (NDL) than the nucleation density (NLS) of said non-nucleation surface (SNDS) and a large area sufficient for a number of nuclei to be formed, and forming selectively a III-V group compound film only on said nucleation surface (SNDL).
Patent CA-1331950-C (CA)
Inventor: TOKUNAGA HIROYUKI
IPC: C30B25/18
Filed: 1988-03-25
Granted: 1994-09-13
Abstract: ABSTRACT OF THE DISCLOSURE       A III - V group compound crystal article comprises a substrate having a non-nucleation surface with smaller nucleation density (SNDS) and a nucleation surface (SNDL) which is arranged adjacent to said non-nucleation surface (SNDS), has a sufficiently small area for a crystal to grow only from a single nucleus and a larger nucleation density (NDL) than the nucleation density (NDS) of said non-nucleation surface (SNDS) and is comprised of an amorphous material, and a III - V group compound monocrystal grown from said single nucleus on said substrate and spread on said non-nucleation surface (SNDS) beyond said nucleation surface (SNDL).
Patent CA-1328736-C (CA)
Inventor: WHITCOMB CARL E
IPC: A01G9/02
Filed: 1988-04-22
Granted: 1994-04-26
Abstract: Abstract of the Disclosure An improved method and container for growing a plant intended to be transplanted are provided.  The side wall of the container includes at least one upwardly facing internal ledge positioned substantially horizontally therein and a plurality of spaced openings are disposed on the side wall and  extend  through  the  ledge.   A portion  of  the  roots growing laterally within the container are trapped by the ledge, are guided through the openings and are air-pruned as a result thereof.
Patent CA-1323675-C (CA)
Inventor: CHOI DOOWHAN
IPC: H04J3/07
Filed: 1988-05-20
Granted: 1993-10-26
Abstract: DIGITAL FRAME SYNCHRONIZER            Abstract A desired positive fractional stuffing ratio is obtained in a frame synchronizer for a digital signal having a channel frame format that included two stuffing bit positions to obtain either positive or negative stuffing.  The fractional stuffing ratio is obtained by controllably increasing the duration of a first predetermined number (p) of intervals during which data bits are written into the synchronizer and, then, by controllably decreasing the duration of a second predetermined number of intervals (q-p) during which data bits are written into the synchronizer.  A data bit (D) is forced to be included in one of the stuffing bit positions occurring during each of the first predetermined number (p) of intervals and a non-data bit (X) is forced to be included in one of the stuffing bit positions occurring during each of the second predetermined number (q-p) of intervals.
Patent CA-1321483-C (CA)
Title: Pressure transducer
Inventor: WAREHAM WILLIAM
IPC: G01L9/04
Filed: 1988-05-25
Granted: 1993-08-24
Abstract: ABSTRACT OF THE DISCLOSURE    A pressure transducer for the measurement of mid-range pressures in the preferred range of 500 7500 psi and including an elongated frame having a capillary tube extending there-through and employing a coupler at one end of the frame for sensing input pressure.  A sensing member is provided at the other end of the capillary tube and has a sensing chamber adapted to have at least one filler means disposed therein.  A recess is provided in the sensing member defining a relatively thin wall adjacent the sensing chamber.  This wall has a pressure responsive sensing surface that extends substantially parallel to the capillary tube length and upon which strain gages are secured.
Patent CA-1322468-C (CA)
Title: Constant temperature hygrometer
Inventor: DJORUP ROBERT S
IPC: G01N27/00
Filed: 1988-06-01
Granted: 1993-09-28
Abstract: CONSTANT TEMPERATURE HYGROMETER               Abstract of the Disclosure A constant temperature hygrometer comprising a piezoelectric substrate supporting a temperature coefficient resistor on one face and a conducting electrode on the opposite face, one or both conductor faces partially or completely covered by a hygroscopic layer of aluminum oxide anodized from aluminum metal deposited on one or both conductor faces, operated by a feedback controlled constant temperature bridge circuit, excited and read out by radio frequency oscillator circuitry; together with alternate forms of hygrometer transducer structures and water vapor sorptive materials.
Patent CA-1315929-C (CA)
Title: Porous hollow-fiber
Inventor: SHIMOMURA YASUSHI
IPC: D01D5/247
Filed: 1988-06-21
Granted: 1993-04-13
Abstract: ABSTRACT OF THE DISCLOSURE       A porous hollow-fiber formed of polyolefin.  The fiber has a peripheral wall constituted by a plurality  of relatively large rods, or strands, of the polyolefin which run   substantially perpendicularly to the longitudinal direction of the hollow-fiber and a plurality of fine fibrils which extend in the longitudinal direction of the hollow-fiber between adjacent rods and are connected thereto.  Groups of rectangular fine pores are formed by the rods and fine fibrils.  The hollow-fiber has groups of fine pores having uniform size and configuration and is excellent in selective separation capabilities.
Patent CA-1315555-C (CA)
Title: Adjustable bearing rail apparatus for bending glass sheets
Inventor: ENK ALLAN T
IPC: C03B23/02
Filed: 1988-08-11
Granted: 1993-04-06
Abstract: ABSTRACT A pair of bearing rails support a plurality of conveyor rolls in a glass sheet bending station.  Each of the bearing rails has a pair of linear actuators pivotally coupled to opposite ends thereof for permitting movement of the bearing rails in a vertical direction.  The ends of each bearing rail are also coupled to a pair of roller racks which extend in a generally horizontal direction and are slidably attached to a supporting framework for moving the bearing rails toward and away from one another.  The bearing rails are coupled to the roller racks by spherical bearings which permit the bearing rails to be canted or rotated about their longitudinal axes. The vertical, horizontal and rotational adjustments allow the conveyor rolls to be positioned for different configurations of glass sheets as the sheets are transported through the bending station.
Patent CA-1321416-C (CA)
Title: Crosstalk reduction in unshielded twisted-pair lines
Inventor: HUANG FRED G
IPC: H04L12/44
Filed: 1988-08-12
Granted: 1993-08-17
Abstract: ABSTRACT OF THE DISCLOSURE A method of reducing crosstalk in unshielded twisted pair (TP) lines interconnecting transceiver Hub and Pod elements of an IEEE 802.3 network is disclosed. Each element is connected by a four-wire full-duplex pair of unshielded TP wires which are prone to crosstalk noise induced by proximity to other TP wires.  The crosstalk noise is reduced by (i) the collision protocol, and (ii) employing different drive levels in the Hub and the Pod.  By having the Pod transmit at a higher voltage level then the Hub, the signal-to-crosstalk noise ratio at the Hub is optimized, allowing for highly reliable communications at up to 10 million bits per second.  A collision protocol specified by the IEEE 802.3 standard further reduces crosstalk noise at the Hub.
Patent CA-1324128-C (CA)
Title: 2', 2'-difluoronucleosides
Inventor: CHOU TA-SEN
IPC: A61K31/7064
Filed: 1988-08-22
Granted: 1993-11-09
Abstract: ABSTRACT            The present invention provides a process for preparing lactone intermediates to 2',2'-difluoronucleo-sides whereby reversion back to the lactone's open chain precursor is minimized and the desired erythro enantiomer can be selectively isolated from an enantiomeric mixture of erythro and threo lactones in crystalline form.  Also provided is a process for producing 2'-deoxy-2',2'-difluoronucleosides in about a 1:1 .alpha./.beta. anomeric ratio, and processes for selectively isolating .beta.-2'-deoxy 2',2'-difluorocytidine, or an organic or inorganic acid addi-tion salt thereof, from the 1:1 .alpha./.beta. mixture.
Patent CA-1293033-C (CA)
Title: Matching circuit
Inventor: SATO TUTOMU
IPC: H03H7/38
Filed: 1988-09-19
Granted: 1991-12-10
Abstract: Abstract of the Disclosure A matching circuit is connected between a source circuit and a load circuit.  The matching circuit is made up of an impedance transforming circuit and a balance-to-unbalance signal-transforming circuit.  If necessary, means for blocking the DC components inter-vene between those transforming circuits.  The impedance transforming circuit is made up of inductive and capaci-tive elements.  The matching circuit is reversible.
Patent CA-1307592-C (CA)
Title: Guidance display apparatus
Inventor: USHIRO MASAHIRO
IPC: G06F3/037
Filed: 1988-09-26
Granted: 1992-09-15
Abstract: ABSTRACT OF THE DISCLOSURE A  guidance  display  apparatus  for  displaying  a succeeding operation  to  be  executed  in  the  form of  a message with respect to a target system having a state which is changed in accordance with an operation by an operator  comprising:  a  bit  input  unit  for receiving  a state signal representing the state of the target system; a system state judging unit for judging the state of the target  system  according  to  the  state  signal  obtained through  the  bit  input  unit;  an  operational  direction judging unit for judging an operational direction of the target system according to the state judged by the system state judging unit;  a succeeding operation judging unit for judging a succeeding operation to be executed by the operator according to the operational direction judged by the operational direction judging unit; a displaying data converting unit  for  converting  the succeeding operation judged  by  the  succeeding  operation  judging  unit  into character data to be displayed; a CPU for controlling a sequence of execution by the system state judging unit, the  operational  direction  judging  unit,  the  succeeding operation judging unit, and the displaying data converting unit;  and  a  display  device  for  displaying  operational guidance corresponding to the character data transferred through the CPU.
Patent CA-1315180-C (CA)
Title: Wood processing machine having annular rings
Inventor: ARASMITH STANLEY
IPC: B27C1/00
Filed: 1988-09-27
Granted: 1993-03-30
Abstract: "WOOD PROCESSING MACHINE   HAYING ANNULAR RINGS"     Abstract of the Disclosure An apparatus for processing wood, comprising a cylindrical drum mounted for rotation about its longitudinal axis, a cutting member, means for mounting the cutting member upon the circumferential surface of the drum such that its cutting edge is positioned a first distance from the drum surface, means for rotating the drum such that the cutting element passes along a circular path concentric to the surface of the drum, a pair of parallel ring sections each having a first and a second end and a substantially uniform cross section, and having an arcuate configuration along their length substantially conforming to the circumferential surface of the surface of the drum, the first ends of each of the spacing elements being positioned laterally adjacent to the path of travel of the cutting member, and extending in parallel relationship in front of the cutting member such that a gullet is defined in front of the cutting edge by the cutting member, the ring sections, and the surface. A repeating pattern exists for the placement of the rings and cutting members upon the surface of the drum.
Patent CA-1290850-C (CA)
Title: Method and arrangement for validating coupons
Inventor: MAY LANCE
IPC: G07F7/04
Filed: 1988-11-01
Granted: 1991-10-15
Abstract: ABSTRACT  OF  DISCLOSURE     The invention relates to a method and machine for use in coupon verification.  At least two juxtaposed coupons, each having a bar code printed or formed thereon, are passed substantially simultaneously through or relative to bar code reader means provided in a machine for verifying coupons. The machine additionally includes holding and dispensing means and a programmed processor.  In use, at least two juxtaposed coupons are passed substantially simultaneously, into and through the bar code reader means of the machine. On the juxtaposed coupons being accepted and verified by the bar code reader means, matter is caused to be dispensed from the holding and dispensing means of the machine.
Patent CA-1311864-C (CA)
Title: Process to upgrade andalousite
Inventor: CARIOU FLORENCE NEE VOLPI
IPC: B03D1/02
Filed: 1988-12-21
Granted: 1992-12-22
Abstract: A process for beneficiation of andalusite present in a compound containing it, by separation from other silicates by flotation to obtain a concentrate whose andalusite content is higher than 90%. It is characterised in that the process comprises at least the following stages:
 a) optional grinding and pulping of the said compound containing andalusite
 b) preconditioning of the said compound containing andalusite by maintaining the pH of the aqueous phase of the pulp at a value below 3.50, the solids content in the pulp being higher than 30% (one significant figure);
 c) conditioning for at least ten minutes after addition of an alkyl sulphonate;
 d) optional dilution of the said pulp to bring it to a solids content of between 15 and 30%
 e) flotation by bubbling small air bubbles calibrated in a manner known per se, the actual flotation lasting not more than ten minutes. 
<??>Application to the production of refractory raw materials.
Patent CA-1323258-C (CA)
Inventor: BEICHT BERND
IPC: F02M25/08
Filed: 1989-01-26
Granted: 1993-10-19
Abstract: ABSTRACT   Apparatus for the temporary storage and metered introduction of the volatile components of fuel collecting in the unfilled space (22) of a tank system (15) to the intake manifold (1) of an internal combustion engine (2). A vent line (25) connects the unfilled space (22) with the atmosphere (23) through a storage cannister (18) with an absorption element, such as an activated charcoal filter; and a line (20), closable by means of an electromagnetic shutoff valve (13), connects the storage cannister (18) to the intake manifold.  Between the shutoff valve (13) and the manifold (1) is a secondary valve (15) which can be closed in accordance with vacuum in a control chamber (14).
Patent CA-1312903-C (CA)
Title: Reversing psc motor design capable of high reversal repetition rate
Inventor: BARKER ALAN R
IPC: H02K17/08
Filed: 1989-02-09
Granted: 1993-01-19
Abstract: Abstract of the Disclosure A reversible permanent split capacitor (PSC) motor and method of designing such a motor employs a parallelogram lamination silhouette and distributes the winding in the core of the motor stator assembly so that maximum flux density in the core is approximately equal in each direction of motor rotation.          The motor is designed to achieve high repetition reversal rates.          The reversal rate and the equal performance attained in each direction, makes the design particularly suitable for washing machine applications.
Patent CA-1318272-C (CA)
Inventor: OSBORNE LANCE S
IPC: A01N63/30
Filed: 1989-03-14
Granted: 1993-05-25
Abstract: UF/S&S-3 Abstract of the Disclosure The subject invention concerts a novel biopesticide and its use to control whiteflies and other pests which cause a significant amount of damage to plants throughout the United States and the Caribbean.   These pests are particularly destructive in greenhouses and nurseries.  A virulent  isolate of  Paecilomyces  fumosoroseus  in  an agricultural  composition,  can be used  to  effectively control these insects.  Exemplified herein is Paecilomyces fumosoroseus Apopka,  ATCC 20874.   By using this novel fungus, or mutants thereof, whiteflies and other pests can be controlled without the environmental and public safety hazards presented by chemical control agents.
Patent CA-1337972-C (CA)
Inventor: NAKAMOTO KOUJI
IPC: A61K31/165
Filed: 1989-04-12
Granted: 1996-01-23
Abstract: A method is disclosed for preventing, ameliorating or treating hyperuricemia by means of N-{3-[4'-(2",6"-dimethylheptyl) phenyl] butanoyl) ethanolamine or a pharmaceutical composition containing same.
Patent CA-1296650-C (CA)
Title: Active acoustic attenuation system with differential filtering
Inventor: ALLIE MARK C
IPC: G10K11/16
Filed: 1989-04-20
Granted: 1992-03-03
Abstract: Abstract An adaptive active acoustic attenuation system is provided with extended frequency range to attenuate undesired noise which was previously filtered out to avoid instability of the adaptive model.  The input signal from the input microphone to the model and the error signal from the error microphone to the model are differentially bandpass filtered to provide a narrower frequency range error signal.  In one embodiment, the model operates in its stable region to provide accurate well behaved correction signals to the cancelling loudspeaker, while still receiving a low frequency input ncise signal from the input microphone including frequencies below such range.  Minimum attenuation frequency has been reduced by at least an octave.
Patent CA-1320243-C (CA)
Inventor: TAKADA YUKIYA
IPC: B60J7/10
Filed: 1989-05-18
Granted: 1993-07-13
Abstract: 7. ABSTRACT OF THE DISCLOSURE     A vehicular openable roof hood for covering an opening portion on the upper surface of a roof of an automotive vehicle, the hood comprising a pair of arms adapted to turn about a pair of pivotal shafts on the roof, a hood securing plate fixed to the distal ends of the arms to immovably hold the distal end of the hood, a hood cloth extending round the upper surface and the front edge of the hood securing plate to be secured to the latter from the bottom side thereof and position fixing means for immovably holding the hood at a position where it is kept in an opened state, wherein the hood securing plate is immovably held at the position where the hood is opened by allowing a belt to be inserted and passed through an insert hole on the hood securing plate and the  hood  securing plate  is  formed with engagement holes through  which  engagement  members  are  introduced,   the engagement holes comprising a wide part and a narrow part, respectively,  so  that  the  engagement  members are  first inserted  through  the  wide  parts  for  bringing  them  in engagement with the hood securing plate and then displaced to the narrow parts in the lateral direction for preventing the  engagement  members  from  being  disengaged  from  the engagement                                            holes.
Patent CA-1315136-C (CA)
Title: Dielectric wave guide having circular birefringence
Inventor: SOMEDA CARLO G
IPC: G02B6/10
Filed: 1989-05-30
Granted: 1993-03-30
Abstract: ABSTRACT     Disclosed is a dielectric wave guide having circular birefringence.  The wave guide has a circular central area having a refraction index n1.  An intermediate area surrounding said central area comprises a plurality of angular sectors alternating first and second types.  The total number of sectors is 8 or a multiple thereof.  The sectors of the first type have a refrac-tion index n3 which is constant while the sectors of the second type have a refraction index n4 which varies in substantially inverse proportion to the square of the distance from the longi-tudinal axis of the wave guide, n3 always being not greater than n4.  An outer annular area (cladding) surrounds the inter-mediate area and has a constant refraction index n2.  The wave guide is twisted along its axis.  The sectors of the second type have an elasto-optic coefficient under torsion stresses which is different from that of the sectors of the first type.
Patent CA-1311265-C (CA)
Inventor: LUOMA WARREN L
IPC: C04B37/00
Filed: 1989-08-01
Granted: 1992-12-08
Abstract: Abstract Seal Structure for an Electrochemical Cell A seal structure 58 between adjacent porous plates 18,20 and a method of making the seal structure for an electrochemical cell are disclosed.  Various construction details are developed which facilitate fabrication and assembly.  In one embodiment, the adjacent porous plates are electrolyte reservoir plates joined together at a three-layer seal structure to form an integral assembly.
Patent CA-1308055-C (CA)
Title: Plastic modular conveyor belts and modules therefor
Inventor: BAILEY PETER K
IPC: B65G17/08
Filed: 1989-08-03
Granted: 1992-09-29
Abstract: ABSTRACT OF THE DISCLOSURE A plastic conveyor belt is formed of a plurality of non-reversible modules having inter-fitting link ends connected together. and hinged by pivot rods having a rod capturing arrangement at each end of the outermost link ends of end module assemblies which is a blocking member insertable into a slot in the widest and outermost link end with the flat surface of the blocking member facing the rod and a projection for cooperating with the rod hole for holding the blocking member in place but allowing it to be removed.  The belt also has internal modules in addition to end modules and all modules are constructed such that the narrowest link ends of unequal width link ends are adjacent sprocket cavities but are offset in a direction of another link end to provide additional strength and rigidity.
Patent CA-1283808-C (CA)
Title: Apparatus for quantitatively extruding food material
Inventor: HIRABAYASHI KOICHI
IPC: A23P1/00
Filed: 1989-09-20
Granted: 1991-05-07
Abstract: AN APPARATUS FOR QUANTATIVELY                     EXTRUDING FOOD MATERIAL     Abstract An apparatus for quantatively extruding food material is provided.   In this apparatus the material is introduced into a space formed between the periphery of a drum and the side wall of a housing.  The space is divided into sections defined by flanges, and thus the material is divided into portions and introduced into each section.  The drum has an inner chamber between its inner wall and the periphery of a cam.  Blades are inserted into slits in the drum periphery, and adjacent pairs of blades form compartments in the sections in the outside of the drum as well as in the inner chamber.  The apparatus has a plurality of exit ports communicating with the respective sections.  Since the dimensions of the compartments in each section decrease toward the exit ports, while the dimensions of the compartment in the inner chamber increases, the pressure in the outer compartments becomes higher than that of the inner chamber.  Thus the air in the material is drawn out of the outer compartments via a path formed between the recess on the trailing surface of each blade and the wall of each slit.  As a result, material of a uniform quantity is extruded from each exit port.