baber/WOPTO huggingface dataset:
Patent CA-1292884-C (CA)
Title: Tendons for prestressed concrete structures and method of using such tendons
Inventor: KURAUCHI MAKOTO
IPC: E04C5/08
Filed: 1987-11-24
Granted: 1991-12-10
Abstract: ABSTRACT     A tendon for prestressed concrete structure comprises a core member such as a steel wire for prestressed concrete structures, a steel strand for prestressed concrete structures or a steel bar for prestressed concrete structures, and an unset bonding material coating the core structure in a predetermined thickness, having a specific setting time determined by selectively determining the respective contents of the ingredient of the bonding material and capable of setting at an ordinary temperature.  The tendon is arranged in a desired arrangement for forming a prestressed concrete structure, concrete is placed so as to bury the tendons therein, and then the tendons are tensioned and fixed after the strength of the deposited concrete has increased to a degree to permit tensioning the tendons and before the unset bonding material sets.  Thus, the unset bonding material sets after the tendons have been tensioned and fixed to bond the tendons firmly to the prestressed concrete structure.
Patent CA-1317553-C (CA)
Title: Paint waste separater-collector apparatus
Inventor: MORIOKA KOJI
IPC: B05B15/12
Filed: 1987-12-07
Granted: 1993-05-11
Abstract: ABSTRACT OF THE DISCLOSURE     A paint  waste  separator-collector  apparatus having   a  separator  tank  for  receiving  water containing paint waste and for causing the contained paint waste to separate and float, a weir for causing the floating paint waste together with overflowing water from the separator tank into a collector container and a water level adjusting mechanism for switchable providing a paint waste accumulating condition in which a water level in the separator tank is lowered for the water not to flow over the weir thereby causing the floating paint waste to accumulate inside the separator tank and a paint waste collecting condition in which the water level in the separator tank is raised for the excess water to flow over the weir into the collector container.  The water level adjusting mechanism includes an overflowing water tank communicating with a lower portion of the separator tank for regulating by means of the overflowing water the water level at the separator tank to be a predetermined low water level for providing the paint waste accumulating condition and a water level raising device for increasing an amount of water entering the separator  tank  relative  to  an  amount  of  the overflowing water from the overflowing water tank so as to raise the water level at the separator tank from the predetermined low water level for providing the paint waste collecting condition.
Patent CA-1290029-C (CA)
Title: Differential amplifier having controllable power consumption
Inventor: HOSTICKA BEDRICH J
IPC: H03F1/02
Filed: 1988-01-20
Granted: 1991-10-01
Abstract: ABSTRACT OF THE DISCLOSURE      The differential amplifier has two n-channel or p-channel field effect transistors serving as controllable current sources which supply auxiliary currents upon appearance of an input signal which amplify the quiescent current.  The inputs of the differential amplifier are connected to the gate terminals of the n-channel or p-channel field effect transistors via a level-converting circuit for converting the d.o. component of the input signal superimposed on a gate bias voltage to a lower or, respectively, higher output level.  As a result of the control of the current sources proceeding from the amplifier input good driver qualities, a distortion-free signal transmission and a lower dissipation power are guaranteed.
Patent CA-1302964-C (CA)
Title: Single-pleated microwave popcorn package
Inventor: YLVISAKER JON A
IPC: B65D81/34
Filed: 1988-02-10
Granted: 1992-06-09
Abstract: TITLE OF THE INVENTION SINGLE-PLEATED MICROWAVE POPCORN PACKAGE            ABSTRACT OF THE DISCLOSURE       A flexible, generally tubular, three-surface, single-pleated, microwave-penetrable package for use in cooking popcorn. Two transverse seals and one lengthwise-extending seam seal the package. Venting means releases accumulated steam produced by the popping corn and the package maintains its expanded structure even after venting has commenced. A convenient means of opening the package is also provided.
Patent CA-1317132-C (CA)
Title: Dental cortical plate perforator
Inventor: DILLON FRANK
IPC: A61C3/02
Filed: 1988-05-04
Granted: 1993-05-04
Abstract: ABSTRACT     A dental apparatus for perforating the cortical plate of human maxillary and mandibular bones comprises a solid metal needle moulded into a plastics shank, the shank being formed with means for cooperation with a dental contra-angle or straight handpiece into which the shank may be inserted.  The shank has a collar at its front end, and a hollow protective cap is removably fitted over the exposed needle and engages the collar.
Patent CA-1282409-C (CA)
Inventor: FUJIKAWA YOSHIHIRO
IPC: C07D487/04
Filed: 1988-06-06
Granted: 1991-04-02
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides a pyrazolo [4,3-d]pyrim-idine derivative having the formula:                    (II) wherein R1 is lower alkyl, phenyl, R2 is -A-CO2R21 (wherein A is alkylene having from 1 to 3 carbon atoms which is unsubstituted or substituted by methyl, and R21 is lower alkyl having 1 to 4 carbon atoms), -CH2CO-phenyl, a saturated or unsaturated, straight chain or branched aliphatic group having from 3 to 16 carbon atoms, phenyl-lower alkyl, chloro substituted phenyl-lower alkyl, or   wherein R22 is hydrogen or lower alkyl.  The compounds are inter-mediates in the preparation of pyrazolo [4,3-d]pyrimidine deriva-tives useful as antihyperlipidemic agents.
Patent CA-1314228-C (CA)
Title: Naphthyridine antianaerobic compounds
Inventor: FERNANDES PRABHAVATHI
IPC: A61P31/04
Filed: 1988-07-25
Granted: 1993-03-09
Abstract: NAPHTHYRIDINE ANTIANAEROBIC COMPOUNDS              Abstract of the Disclosure The naphthyridine compounds having the formula:                 wherein R1 is hydrogen or a carboxy protecting group have unexpected and superior antianaerobic activity.
Patent CA-1317808-C (CA)
Title: Extended nip press belt guide
Inventor: LANGE DAVID V
IPC: D21F1/36
Filed: 1988-09-06
Granted: 1993-05-18
Abstract: ABSTRACT OF THE DISCLOSURE      An extended nip press has a looped belt mounted over a shoe having a concave surface which presses the belt against a mating surface on a roll to provide an extended nip.  The shoe has a support which is movable in a skewing sense relative to the longitudinal axis of the roll.          Lateral movement of the belt is monitored.  When it has moved beyond predetermined limits in either direction, the shoe is skewed to alter the frictional forces on the belt as it passes over the shoe's surface.  This controls the position of the belt and keeps it centered in the nip.
Patent CA-1299661-C (CA)
Inventor: BOSCHET CHRISTIAN
IPC: G01R29/06
Filed: 1988-09-23
Granted: 1992-04-28
Abstract: The device is intended for measuring the intermodulation products of a receiver (RE) of at least two electromagnetic signals of different frequencies (F1, F2). It consists of at least two transmission channels (VE1, VE2) with signal frequencies (F1, F2), and one "reception on reflection" channel (VRR) connected to an apparatus (AM) for measuring the intermodulation products. The reception channel enables signals to be transmitted in a frequency band centred on the receiving-frequency band of the receiver (RE). A reception on reflection multiplexer-demultiplexer (MU-DER) with directive filters (1, 2, 3) provides the connection between the two transmission channels (VE1, VE2) and the "reception on reflection" channel (VRR) of the receiver (RE). 
<??>Application to the measurement of the passive or active intermodulation products of a receiving system (RE) in the field of electromagnetic radar detection or satellite telecommunications. 
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Patent CA-1329725-C (CA)
Title: Process for the production of texturized animal protein, and foodstuff thereby produced
Inventor: HALL SIMON R
IPC: A23J1/00
Filed: 1988-09-27
Granted: 1994-05-24
Abstract: ABSTRACT                           FOODSTUFF            Textured animal protein can be prepared by forming a heated pressurised wet mass of animal meal    and extruding the mass or otherwise reducing the pressure and temperature  surrounding the mass.  The ingredients for the animal meal are chosen so that the measurable gelatin content of the extruded product is less than 10% of the dry solids of the product. As gelatin is a hydrolysis product of collagen,  this means that the animal meal should be prepared from material which is intrinsincally low in hydrolysable collagen, or the hydrolysable collagen content should be reduced either by cross-linking  (for example with propylene glycol alginate)  or by hydrolysis  and washing away  the gelatin.
Patent CA-1277976-C (CA)
Title: Lanced sine-wave heat exchanger
Inventor: SACKS PAUL S
IPC: F28F1/32
Filed: 1988-10-13
Granted: 1990-12-18
Abstract: LANCED SINE-WAVE HEAT EXCHANGER                     ABSTRACT OF THE DISCLOSURE            A sine-wave like plate fin for a finned tube heat exchanger coil is provided having an improved enhanced heat transfer area between adjacent pairs of holes in the plate fin.  The enhanced heat transfer area includes a plurality of raised lance elements disposed thereon generally at the peaks and troughs of the sine-wave wherein the raised elements at the peaks are concave and the raise elements at the troughs are convex.
Patent CA-1324384-C (CA)
Title: Process for the production of earth alkali metal salts of 2-pyrrolidon-5-carboxylic acid
Inventor: KRIMMER HANS-PETER
IPC: A61K31/40
Filed: 1988-10-14
Granted: 1993-11-16
Abstract: ABSTRACT OF THE DISCLOSURE            Earth alkali metal salts of 2-pyrrolidon-5-carboxylic acid (pyroglutamic acid) are produced by heating the corresponding earth alkali metal salt of the glutamic acid, while retaining the solid state, to a temperature in the range from 120 to 250°C, until the reaction water of the intramolecular condensation (cyclocondensation) has been completely driven off.
Patent CA-1337887-C (CA)
Title: Reactive coatings
Inventor: SHALATI MOHAMAD D
IPC: C09D163/04
Filed: 1988-11-15
Granted: 1996-01-02
Abstract: Coating compositions which comprise:  (i) a hydroxy-functional compound containing in the molecule an average of at least two hydroxyl groups; (ii) an anhydride-functional compound containing in the molecule an average of at least two cyclic carboxylic acid anhydride groups; and (iii) an epoxy-functional compound containing in the molecule one epoxy group, with the proviso that at least one of the compounds (i), (ii) and (iii) is a film-forming polymer, provide low temperature cure response and excellent durability.
Patent CA-1295609-C (CA)
Inventor: MALEK JACK H
IPC: A61H33/02
Filed: 1988-11-16
Granted: 1992-02-11
Abstract: WATER JET AERATOR WITH DIVERTER VALVE                   ABSTRACT OF THE DISCLOSURE              A water jet aerator in combination with a diverter valve including an aerator housing, a valve body that is rotatably positioned within the aerator housing,  and a swivel nozzle.  The aerator housing includes a water inlet conduit, a water outlet con-duit,  and an air inlet conduit and the valve body forms two chambers, a diverter chamber and an aera-tion chamber.  As the valve body is rotated in one direction within the aerator housing, water flow from the water inlet conduit to the aeration chamber is diverted to the water outlet conduit, while the air inlet conduit is proportionally closed to the aera-tion chamber. As the valve body is rotated in the other direction,  water flow from the water inlet conduit to the water outlet conduit is diverted to the aeration chamber, while the air inlet conduit is proportionally opened to the aeration chamber.  In this manner, water flow from the water inlet conduit can be completely diverted to the water outlet conduit and the other water jet aerators in the spa, or fully applied to the aeration chamber of the one water jet aerator for maximum massaging action of the user.
Patent CA-1325629-C (CA)
Inventor: KIOKA MAMORU
IPC: C08F4/659
Filed: 1988-12-19
Granted: 1993-12-28
Abstract: ABSTRACT OF THE DISCLOSURE An olefin is polymerized or copolymerized in the presence of an olefin-polymerizing catalyst prepared from (A) a transition-metal compound or (A') a transition-metal compound loaded on a fine-particle carrier, said transition metal being selected from group IVB in the periodic table; (B) an aluminoxane; and (C) an organoaluminum compound represented by the general formula [I] or [II]:          R1mAl(OR2)3-m                [I]          R3nAl(OSiR43)3-n             [II]   wherein R1, R2, and R3 are independently selected from hydrocarbon radicals, R4 is selected from the group consisiting of hydrocarbon, alkoxy, and aryloxy radicals, and m and n are independently a positive number of more than 0 and less than 3.  This catalyst has a significantly high polymerization activity, and the thus produced olefin polymer or copolymer has a narrow molecular-weight distribution as well as a narrow composition distribution, a high bulk density, and excellent powder properties.
Patent CA-1290416-C (CA)
Title: Cover plate for electrical receptacles
Inventor: MEYERS JOEL
IPC: H02G3/14
Filed: 1989-01-11
Granted: 1991-10-08
Abstract: ABSTRACT        A cover  for an electrical outlet  is provided to prevent electric shock to children resulting from inser-tion of objects into an electrical receptacle.  The cover has a base plate having rails extending from its top sur-face, and a peripheral wall extending from its bottom sur-face defining a flange.   A cover plate has longitudinal slots which coact with the flanges of the base plate to allow the cover plate to slide relative to the base plate.          Stop means on the cover and base plates limit the travel of the cover plate, and resilient locking means engage the cover plate when in the covered position.
Patent CA-1338317-C (CA)
Inventor: IMAI AKIO
IPC: C08C19/42
Filed: 1989-01-20
Granted: 1996-05-07
Abstract: A process for preparing modified diene polymer rubbers having an increased impact resilience and a reduced hardness at low temperatures and useful as rubber materials for automobile tires and other industries which comprises producing an alkali metal-containing conjugated diene polymer, and reacting the alkali metal-containing polymer with a modifier selected from the group consisting of an acrylamide compound of the formula:       wherein R1 is hydrogen atom or methyl group, R2 and R3 are independently an alkyl group and n is an integer, and an aminovinylsilane compound of the formula:                           (2) wherein R4 to R8 are independently an alkyl group, said alkali metal-containing diene polymer being prepared by a living anionic polymerization using an alkali metal-based catalyst or by an addition reaction of a diene polymer having conjugated diene units and an alkali metal-based catalyst in a hydrocarbon solvent.  The modified diene polymers can be incorporated with usual rubber additives and with or without other rubbers to provide rubber compositions for various purposes, and the cured products show an increased impact resilience and a reduced hardness at low temperatures.
Patent CA-1301345-C (CA)
Title: Methods for part-of-speech determination and usage
Inventor: CHURCH KENNETH W
IPC: G06F17/27
Filed: 1989-02-03
Granted: 1992-05-19
Abstract: Abstract There are disclosed methods and applications for determination of parts of speech (part-of-speech tagging) and noun phrase parsing for text or other non-verbal record of a communication. The part-of-speech tagging method optimizes the product of individual word lexical probabilities and normalized three-word contextual probabilities. Normalization involves dividing by contained two-word contextual probabilities. The method for noun phrase parsing involves optimizing the choices of, typically non-recursive, noun phrases by considering all possible beginnings and endings thereof, preferably based on the output of the part-of-speech tagging method. The disclosed applications include text-to-speechsynthesis and text searching and editing, among a broader range of possible applications.
Patent CA-1309294-C (CA)
Title: Pressure chamber for ink jet systems
Inventor: MOYNIHAN EDWARD R
IPC: B41J2/16
Filed: 1989-02-21
Granted: 1992-10-27
Abstract: Pressure Chamber for Ink Jet Systems Abstract In the particular embodiments of the invention described in the specification, the pressure chamber (18) for an ink jet system is coated with a thin, conforming layer (25) of a coating material, such as epoxy, urethane, silicone, fluoroethylene or xylylene polymer material to eliminate nucleation sites in the surfaces forming the walls of the chamber and thereby inhibit formation of bubbles from dissolved air con-tained in ink within the chamber when the ink is sub-jected to reduced pressure during operation of the ink jet system.  (Fig. 2)
Patent CA-1307178-C (CA)
Title: Programmable valve pump
Inventor: IDRISS SAMIR F
IPC: A61M31/00
Filed: 1989-03-13
Granted: 1992-09-08
Abstract: PROGRAMMABLE VALVE PUMP                     Abstract An implantable valve accumulator pump comprises a drug reservoir (18) maintained at constant pressure vapor.  The medication metering assembly comprises a fixed volume accumulator (30) positioned between a pair of valves (26,28).  The valves alternately open and close to admit medication from the reservoir into the accumulator and to dispense a precise volume spike to an outlet catheter (36).  In order to mimimize dead volume and insure complete discharge, the accumulator employs a titanium diaphragm (90) seated in one position by a recessed stop and in the discharge position by a spacer plate (98) having a grooved pattern. The unit is externally programmed.
Patent CA-1338102-C (CA)
Title: Fluid pump apparatus and valve device
Inventor: KOIWA YOSHINOBU
IPC: F04B43/067
Filed: 1989-03-21
Granted: 1996-03-05
Abstract: In a pump apparatus in which the action of a piston draws fluid into and pumps fluid from a valve chamber,  a partition is provided between the piston cylinder and the valve chamber.  The partition is able to transmit the force of the piston action, and for this purpose the cylinder side of the partition contains a suitable liquid medium that transmits the actuation of the piston.  A screening means is provided in a passage between the partition and the valve chamber to screen out particles in the fluid that exceed a prescribed size. The overall effect is to eliminate wear to working parts of the valve caused by entrained particles.  In addition there  is  a  valve  device  which  prevents  bounce  or vibration of valve-pieces during high pressur/high speed pumping operations.
Patent CA-1325232-C (CA)
Title: Vehicule a chenilles pour transport de charges et/ou fourniture d'energie dans des zones difficiles d'acces ou dangereuses pour l'homme
Inventor: MANCHERON DANIEL
IPC: B62D55/065
Filed: 1989-04-25
Granted: 1993-12-14
Abstract: Véhicule à chenilles destiné au transport de charge et/ou à la fourniture d'énergie dans des zones difficiles d'accès ou dangereuses pour l'homme, caractérisé en ce qu'il est supporté par un ensemble de quatre chenilles indépendantes dont deux au moins constituant le train avant ou le train arrière directeur dudit véhicule sont orientables, autour d'un axe vertical (1), le train directeur étant orientable en déport latéral, autour d'un axe longitudinal (2) et en déport longitudinal, autour d'un axe transversal (3a,3b).
Patent CA-1314746-C (CA)
Title: Holding arrangement for a device directed against a linearly adjustable roll, such as a doctor blade, blowing device or similar
Inventor: HAFNER PAUL
IPC: B30B3/04
Filed: 1989-04-28
Granted: 1993-03-23
Abstract: ABSTRACT       Holding arrangement for a device directed against a linearly adjustable roll, such as a doctor blade, blowing device or similar.  On a holding arrangement for a device for surface treatment of the roll shell, directed against a linearly adjustable roll, where the roll is endways mounted through a bearing housing each in a machine frame, where for each bearing housing a cylinder/piston unit is provided for displacement of the roll, and where the roll is removable from the machine frame together with the bearing housings, a holder plate is arranged between the bearing housing and the piston of the cylinder/piston unit, which holder plate is connected with a support bearing for the device for surface treatment of the roll shell.  Available is thus a holding arrangement of the categorail type which relative to the roll is well adjustable, which need not be lifted off as the roll contacts the opposite roll and which overall can be so integrated that it remains on the machine frame as the roll is lifted off.
Patent CA-1320484-C (CA)
Title: Method for manufacturing lignin for carbon fiber spinning
Inventor: SUDO KENICHI
IPC: C08H7/00
Filed: 1989-06-06
Granted: 1993-07-20
Abstract: Abstract of the Disclosure:         A method for manufacturing lignin for carbon fiber spinning, comprising subjecting to heat treatment in a non-oxidizing atmosphere a phenolated lignin obtained by phenolation of lignin dissolved out in delignification of a woody material, or a phenolated lignin derived from digestion of a woody material with a phenol.
Patent CA-1306029-C (CA)
Inventor: VELKE DAVID C SR
IPC: H01R4/14
Filed: 1989-06-26
Granted: 1992-08-04
Abstract: ABSTRACT A connector device for splicing two conductors includes a pair of joined body sections provided with axially offset cable conductor holes leading to an intermediate cavity.  A grip element with the cavity, having one or more helical coils has its opposite ends anchored relative to the opposed end faces of the two body sections.   Two cable conductors are electrically and mechanically joined by inserting the conductor ends through the body sections and into the cavity, within the confines of the grip element coils following which, twisting of the body sections relative one another constricts the grip element convolutions tightly about the contained conductor ends.  The interlock may be further enhanced by the inclusion of a knobbed lock post disposed within the connector cavity and which assists in deforming the conductor ends as the coil  grip element  is constricted thereabout.
Patent CA-1313980-C (CA)
Title: Low-frequency sound generator, especially for grills
Inventor: OLSSON MATS
IPC: F23B99/00
Filed: 1989-06-28
Granted: 1993-03-02
Abstract: ABSTRACT OF THE DISCLOSURE:        The apparatus according to the invention relates to a low frequency sound generator especially suited for use with infrasound grills or other infrasound supported combustion.  A housing in the shape of a front plate, a rear cover plate and a sweep, which connects the two plates,  is connected to the grill via a flange.   By means of an electro magnet, a reciprocating movement is generated in a diaphragm located inside the housing, and said reciprocating movement generates air pulses of a certain low frequency which propagate from the diaphragm through the flange and into the combustion fire place.