baber/WOPTO huggingface dataset:
Patent CA-2044104-A1 (CA)
Title: Acetone copolymerization of ethylene
Inventor: MARSHALL DONALD R
IPC: C08G67/00
Filed: 1991-06-07
Abstract: ACETONE COPOLYMERIZATION OF ETHYLENE               ABSTRACT OF THE DISCLOSURE           An improvement in the process for the continuous copolymerization of ethylene with carbon monoxide and optionally certain polar comonomers having reactive double bonds, wherein a single phase is maintained in the reactor by means of acetone introduced concurrently with the reactants, whereby reactor fouling is significantly reduced or eliminated.
Patent CA-2047896-A1 (CA)
Title: Radiating element incorporating impedance transformation capabilites
Inventor: STRICKLAND PETER C
IPC: H01Q13/08
Filed: 1991-07-25
Abstract: This invention relates to a radiating element, such as a microstrip antenna, having a low input impedance and being capable of allowing high RF power to be supplied to the radiating element. The radiating element incorporates impedance transformation capabilities by providing a dielectric member with an electrically conductive ground plane formed on one side of the dielectric member. A metal patch element is formed on the other side of the dielectric member and spaced from the ground plane by the dielectric member. The patch element is capable of radiating RF energy when coupled to a source of RF input energy applied thereto. An impedance transforming section is selectively located within the perimeter of the patch element to give a desired input impedance at a feedpoint of the impedance transformation section.
Patent CA-2048036-A1 (CA)
Inventor: NAGATSUKA TAKAYUKI
IPC: G03G13/20
Filed: 1991-07-29
Abstract: ABSTRACT OF THE DISCLOSURE       A novel method for heat-pressure fixing color toner images in which:       (1) a toner is produced by suspension polymerization and contains a wax of a certain molecular weight and a certain melting point in a certain amount, wherein the wax is enclosed in each particles by vinyl resin, and the THF soluble matters have specific molecular weight distribution; and (2) a fixing means comprises a fixing roller and a pressure roller in mutual pressure contact, and through which the transfer medium comes out in the direction inclined toward the pressure roller, wherein the surface of the fixing roller comprises a fluorine-containing material.
Patent CA-2049446-A1 (CA)
Inventor: FROMM PAUL M
IPC: B05C1/08
Filed: 1991-08-19
Abstract: Release Agent Management (RAM) system for a heat and pressure fuser. The open pool of oil associated with prior art RAM systems is replaced with an oil saturated wick the lower end of which is immersed in oil. The oil is held in a container with a sealed lid that has a slot through which the wick passes allowing the wick to transport oil from the container to a metering roll outside of the container. A depression in the container lid that cradles the wick under the metering roll allows oil to collect in the portion of the wick laying on the container lid. The shape of the depression prevents oil from flowing back into the container through the slot and from flowing to some lower part of the container lid. The wick is compressed approximately 50% between the metering roll and container lid. A removable seal is provided which is attached to the lid such that the RAM can be shipped without oil spillage.
Patent CA-2055874-A1 (CA)
Title: Method and apparatus for isolating a zone of a wellbore and extracting a fluid therefrom
Inventor: BURTON GUY C
IPC: E21B33/127
Filed: 1991-11-20
Abstract: "METHOD AND APPARATUS FOR ISOLATING A ZONE OF A WELLBORE AND EXTRACTING A FLUID THEREFROM"                        ABSTRACT    A method and apparatus for isolating a zone (12) of a wellbore (14) penetrated by a casing (16) and then opening ports (28) in the zone (12) for extraction or injection of fluids is provided.  The zone (12) is isolated by inflating jackets  (42)  and then closing a safety valve  (38)  by sliding a sliding member (44) relative to a first conduit (46).  The ports (28) are opened by sliding a piston (80) of a  sliding sleeve valve  (76)  so  that openings  (84) therein align with the ports (28).  The invention provides improved zone isolation and reduced wear of seals (86) in the sliding sleeve valve (76).
Patent CA-2058233-A1 (CA)
Title: Exercise monitoring device
Inventor: JULL GWENDOLEN A
IPC: A63B23/02
Filed: 1991-12-20
Abstract: An exercise monitoring devise (10, 10A, 10B) comprising a pressure pad (11) in the form of a flexible bladder or bag which comprises a plurality of substantially separate compartments (12, 12A, 12B). There is also included pumping means in the foam a pressure bulb or air bulb (24). There is also included feedback means in the form of an aneroid dial (18, 19). The feedback moans permits monitoring or metering of pressure biofeedback transmitted to the pressure pad from the body part of the patient (34) in use. The feedback may also comprise an analogue meter, digital readout or visual display device VDU which are all associated with the pressure transducer. There also may be provided valve means (21) in the form of a regulating screw which may regulate air flow between the six bulb (24) and aneroid dial (18, 19). There is also provided a method for monitoring or physiotherapy exercise using the above described monitoring device (10) which includes the steps of: (1) supporting the pressure pad (11) between a body part of a patient (34) requiring monitoring and a support surface such as a floor, belt, back of a chair, wall, plinth bed; (2) inflating the pressure pad (l1) until it moulds between the body part and the support surface; (3) monitoring the pressure on the feedback means including noting any changes in the pressure; and (A) deflating the pressure pad (11).
Patent CA-2060710-A1 (CA)
Title: Process for preparing 1,3-dioxols
Inventor: NAVARRINI WALTER
IPC: C07D317/42
Filed: 1992-02-05
Abstract: A process for preparing 1,3-dioxoles of formula:    in which X1 and X3, like or different from each other, are F or H, X5 and X6, like or different from each other, are F or CF3, by dehalogenation reaction of the corresponding 4,5-dihalodioxolanes in the presence of a dehalogenation agent at a temperature ranging from + 30° to + 130°C.      The starting dioxolanes are essentially in the isomeric form anti.
Patent CA-2061492-A1 (CA)
Inventor: MORRIS KIRK E
IPC: B60N2/22
Filed: 1992-02-19
Abstract: ADJUSTABLE SEAT RECLINER APPARATUS AND METHOD OF MAKING SAME                ABSTRACT OF THE DISCLOSURE         An arm connectible to a seat back and having teeth formed at one end is pivotally mounted to a seat bottom frame formed of first and second spaced, fixedly connected plates.  A toothed drive gear mounted between the first and second plates and rotated by a drive unit meshingly engages the teeth on the arm to rotate the arm between infinitely adjustable positions.  Aligned slots are formed in the first and second plates and receive opposed tenons of a rivet having the arm rotatably mounted about  a  central  body portion.  The tenons are angularly staked to the first and second plates such that one edge of each tenon farthest from the teeth on the arm is disposed in registry with the associated plate adjacent one edge of the slot and the diametrically opposed edge of each tenon is spaced above the opposite end of the slot in each plate to dispose the exterior end surface of each tenon at an acute angle with respect to the associated plate to urge the rivet and the arm in a direction toward the drive member to interlock the teeth on the arm with the  teeth on the drive member.
Patent CA-2062727-A1 (CA)
Title: Fluoropolymer blends
Inventor: BARRETT LEONARD
IPC: C08L23/28
Filed: 1990-08-02
Abstract: A polymer blend comprises (A) a fluorinated ethylenepropylene copolymer and (B) a fluoroelastomer. The fluoroelastomer comprises a block copolymer comprising at least one elastomeric segment comprising tetrafluoroethylene, vinylidene fluoride, and hexafluoropropylene repeat units in a mole ratio 45-90:5-50:0-35 and at least one nonelastomeric segment comprising tetrafluoroethylene and ethylene repeat units. The weight per cent of copolymer (A) relative to the combined weights of copolymer (A) and fluoroelastomer (B) is between about 70 and about 97% or between about 3 and about 30%.
Patent CA-2062749-A1 (CA)
Title: Hot-melt adhesive
Inventor: KAWASAKI MASAAKI
IPC: C09J123/18
Filed: 1991-04-17
Abstract: A random copolymer of a C4 to C12 .alpha.-olefin with an aromatic vinyl monomer, wherein the .alpha.-olefin content is 50 to 98 mole % and the softening point is 40 to 150 °C, is useful as a hot-melt adhesive and excellent in adhesion, processability and en-vironmental aging resistance such as thermal aging resistance. The copolymer can be used as a hot-melt adhesive or a heat sealant when combined wait 70 to 10 wt% of a tackifier.
Patent CA-2062817-A1 (CA)
Title: Therapeutic device for male sexual dysfunction
Inventor: FLYNN DARCY L
IPC: A61F/
Filed: 1990-06-27
Abstract: ABSTRACT        A therapeutic device  (20)  for the treatment of male sexual dysfunction which has first and second substantially rigid portions (21,23) interconnected by malleable or deform-able portions (24).  The device (20) is fitted to the base of the male penis and by selective deformation of the device (20), the first portion constricts blood flow through the pen-ile veins to enable the user to achieve a penile erection; the second portion (23) constricts the urethra to prevent prema-ture ejaculation;  and the malleable or deformable portions (24) constrict blood flow through the penile arteries to over-come Priapism.  The device (20) has a core (30)  (e.g.  of cop-per wire)  within a deformable resilient sheath  (33),  with grooves or slots (27) which allow blood flow through the blood vessels under the skin of the penis when in use.
Patent CA-2063557-A1 (CA)
Title: Small cyclic platelet aggregation inhibitors
Inventor: BARKER PETER L
IPC: C07K1/02
Filed: 1990-07-05
Abstract: A platelet aggregation inhibitor useful as an antithrombotic is provided which consists of a synthetic cyclic pentapeptide containing the tripeptide sequence Arg-Gly-Asp and a thioether linkage in the cycle. A preferred platelet aggregation inhibitor is represented by formula (I), where R1 and R9 are OH; R2, R4, R5, R6, R7, R8 and R14 are hydrogen; R3 and R4 are joined to form a pyrrolidine ring; X is sulfur; m is 1 and n is 3.
Patent CA-2065638-A1 (CA)
Title: Sample timing and carrier frequency estimation circuit for sine-cosine detectors
Inventor: CHENNAKESHU SANDEEP
IPC: H04L27/233
Filed: 1992-04-09
Abstract: RD-20, 181 SAMPLE TIMING AND CARRIER FREQUENCY ESTIMATION               CIRCUIT FOR SINE-COSINE DETECTORS                         ABSTRACT      A digital radio receiver for synchronization of radiowave transmissions for digital and analog FM signals in TDMA systems such as cellular telephones uses a Sine/Cosine detector that minimizes the bit error rate.  The detector employs an A/D converter that samples a received intermediate frequency signal, a sorter circuit that produces a predetermined number of samples to be used in the decoding based upon a sample timing adjustment, and a sample and phase adjustment circuit that selects samples based on a sample timing adjustment and adds a Carrier phase adjustment to the samples.     A cosine detector and a sine detector decode the sample into a cosine and a sine of the transmitted phase angle, respectively.  The amplitudes of the cosine detector and sine detector output signals are measured by a cosine level check circuit and a sine level check circuit respectively. A decision logic produces a pair of bits from the levels detected by the cosine level check circuit and the sine level check circuit as the decoded transmitted information.     Adjustments to the sample timing and carrier phase are performed by an adjustment circuit that monitors the phase error between the decoded information and a predetermined information set in the preamble of each TDMA slot.  The adjustment circuit sends the sample timing and carrier phase adjustments to the SPA circuit which selects different samples to be decoded and uses the carrier phase adjustment to recalculate different coefficients from these samples and pass the signal through the remainder of the circuit and eventually to the adjustment circuit. The signal is iteratively cycled through this loop until the best sample timing and carrier phase adjustments are reached.
Patent CA-2065680-A1 (CA)
Title: Shear wire flange joint
Inventor: GRAMMEL LEONARD P JR
IPC: F02C7/00
Filed: 1992-04-09
Abstract: SHEAR WIRE FLANGE JOINT                        ABSTRACT       In an axial flow gas turbine engine, a shear wire flange joint for an aft centerbody having an outer ring flange, and an inner ring flange that are held close together and a locking member interposed therebetween is provided. The flanges are specially configured to achieve positional alignment and a uniformly shaped groove is machined into the surface of both the inner and the outer ring flange.  The circumferential grooves are aligned to form a space between the flanges.  A wire is inserted into the space through a window provided in the outer ring flange.  The wire locks the inner and the outer ring flange together by preventing axial movement of the inner and outer ring flanges relative to one another.
Patent CA-2066864-A1 (CA)
Inventor: KOJIMA SUSUMU
IPC: H04W4/33
Filed: 1992-04-22
Abstract: A cordless telephone system or similar mobile radio communication system which limits the service available for a mobile unit or radio terminal in an exclusive zone assigned to the terminal and removes the limitation in a common zone while opening all the zones to a particular radio terminal. Assuming a single building accommodating a plurality of companies, the area where radio terminals can be serviced is limited on a companay basis. All the terminals belonging to the respective companies are serviced at a restaurant, lobby or similar common space inside the building. An exclusive terminal for a guard, for example, is serviced in all the arears inside the building.
Patent CA-2069654-A1 (CA)
Title: Peptide process
Inventor: HAYWARD CHRISTOPHER F
IPC: C07K1/04
Filed: 1992-05-27
Abstract: A process for the solid phase synthesis of peptides containing an aza-amino acid, for example the decapeptide goserelin, which comprises (i) assembling all the amino acids of the peptide except the C-terminal aza-amino acid by conventional solid phase synthesis; (ii) cleaving the peptide from the support with hydrazine or a substituted hydrazine; and (iii) reacting the hydrazide thus released with a cyanate ion.
Patent CA-2070700-A1 (CA)
Title: Method and circuit arrangement for limiting an output signal
Inventor: MARTIN RAIMUND
IPC: H03G11/00
Filed: 1992-06-08
Abstract: ABSTRACT OF THE DISCLOSURE   In a method and circuit arrangement for limiting an output signal, an aggregate signal is formed from a base signal and from a triangular-shaped sampling signal, and a pulse-duration-modulated control signal is generated from the aggregate signal. Upon the occurrence of an upward transgression of a threshold potential, additional pulses are generated from the aggregate signal and are inserted into the pulse-duration-modulated control signal. The control signal is used to generate a demodulated useful output signal, and the additional pulses in the control signal effect a limitation of the amplitude of the output signal only after amplification has already occurred. The amplified output signal is thus limited without reducing the amplification gain.
Patent CA-2070947-A1 (CA)
Title: Multiple probe electrodes for scanning tunnelling microscope recording and reproduction
Inventor: KAWAGISHI HIDEYUKI
IPC: G11C13/02
Filed: 1992-06-10
Abstract: The apparatus includes a recording medium (7-9,11,13) having a plurality of segmented planar electrodes (7-9), a plurality of probe electrodes (21-23) respectively facing the plural planar electrodes and electrically connected to each other, and a circuit (17) for independently applying a voltage for recording and/or reproducing between each pair of the planar electrodes and the probe electrodes. The information recording and/or reproducing apparatus includes a circuit for inputting information to be recorded into the recording medium, a memory (19,20) other than the recording medium for temporarily storing the input information, and a circuit (16) for applying the recording voltages between a plurality of probe electrodes and segmented planar electrodes in correspondence with the information stored in the memory.
Patent CA-2071007-A1 (CA)
Title: Electrochemical cell with improved fill port
Inventor: CRETZMEYER JOHN W
IPC: H01M50/147
Filed: 1991-09-19
Abstract: ABSTRACT           One-piece electrochemical cell cover with improved seal area in the fill port.
Patent CA-2072319-A1 (CA)
Title: Ampholyte terpolymers providing superior conditioning properties in skin and nail care products
Inventor: CHEN SHIH-RUEY T
IPC: A61K8/00
Filed: 1992-06-25
Abstract: Ampholyte terpolymer conditioning additives for skin and nail care products are disclosed which improve softening or lubricating (lubricity), moisture retention and attraction (moisturizing), feel, and reduction of irritation. the ampholyte terpolymers may have a weight average molecular weight of from about 10 thousand to 10 million, and comprise (a) from at least 1 to as much as 95 weight percent of a nonionic monomer, (b) from at least 5 to as much as 80 weight percent of a cationic monomer, and (c) from at least 1 to as much as 75 weight percent of an anionic monomer. The ampholyte terpolymers are added to skin and nail care product formulations in amounts ranging from 0.1-10% by weight.
Patent CA-2072877-A1 (CA)
Title: Device for receiving and evaluating opticals signals
Inventor: SCHICKER STEFAN
IPC: A61B5/00
Filed: 1991-09-25
Abstract: The device comprises a sensor (5, 7) to convert the optical signals into electrical ones, a receiver section to process the electrical signals into data and a computer to process the data into usable information. The sensor (5, 7) is at or near a wall (2) of a housing (1) of the computer. The sensor (5) can be arranged on or near a wall (6, 8) of a receiver section incorporated into the housing (1) of the computer. The housing of the receiver section may take the form of a standard-format unit of a diskette drive (4). In the housing (1) of the computer is fitted a position for a diskette drive and a front plate (8) which is incorporated in turn into a wall (2) of the computer housing if the housing of the receiver section is fitted on the computer. Here the sensor (7) is arranged on or near the front plate (8) of the receiver section.
Patent CA-2074736-A1 (CA)
Inventor: TOERMAENEN AIMO
IPC: D21F5/04
Filed: 1992-07-28
Abstract: The invention concerns a grouping of cylinders in the drying section of a paper machine, in which drying section the paper web (W) and the wire (H) are carried meandering from a heated, preferably steam-heated, drying cylinder (K) onto a leading cylinder (V) and from the leading cylinder (V) further onto the next heated drying cylinder (K). A drying group (R) consists of a number of subsequent groupings of cylinders, whereby, in a grouping of cylinders, the drying cylinders (Kn-2,Kn-1,Kn) and the leading cylinders (Vn-1, Vn) are placed, in relation to one another, substantially at three different height levels, so that the drying cylinders (Kn-2, Kn) with larger diameter are placed at the height level (Y1) and the drying cylinder (Kn-1) that has a diameter smaller than said larger diameter is placed at the height level (Y2). In the grouping of cylinders the leading cylinders (Vn-1, Vn) are placed at the third height level (Y3). <IMAGE>
Patent CA-2077619-A1 (CA)
Title: Coupler for connecting two plastic pipes and process and mold for producing the coupler
Inventor: CARLSTROEM BOERGE
IPC: F16L21/00
Filed: 1992-09-04
Abstract: ABSTRACT OF THE DISCLOSURE            The coupler consists of  an essentially cylindrical outer layer of glass fiber-reinforced plastic and an inner layer consisting of polyurethane.   This inner layer has, approximately in the middle between the two coupler ends, a rib which serves as a stop for the ends of the two pipes to be connected to one another.  The coupler has, between this rib and one coupler end (a), an  approximately  conical  inner  shape  which  has  a diameter which increases in an outward direction, this conical surface also being provided with two sealing beads.  A cylindrical section, a sawtooth-like rib and an annular groove are present between the other coupler end and the rib.  A coupler of this type can be mounted relatively simply on the end of a pipe and can be nondetachably connected to it also by means of an adhesive.  A pipe of essentially the same diameter can be inserted into the other coupler end and gives a tight fit in the coupler even when the axes of the coupler and the pipe do not coincide but make a small angle with one another.
Patent CA-2077822-A1 (CA)
Title: One part heat curable organopolysiloxane compositions
Inventor: SUMPTER CHRIS A
IPC: C08L83/07
Filed: 1992-10-01
Abstract: RD-21,645 ONE PART HEAT CURABLE ORGANOPOLYSILOXANE               COMPOSITIONS                 Abstract of the Disclosure Shelf stable heat curable mixtures of vinyl substituted organopolysiloxane fluid and siloxane hydride are provided.  The one part polyorganosiloxane mixtures are catalyzed with an inclusion compound of a cyclodextrin and a complexing ligand such as, cyclopentadiene, 1,5-cyclooctadiene or norbornadiene and a platinum metal material, such as a C(1-4) alkyl substituted platinum.
Patent CA-2079034-A1 (CA)
Title: Respiratory disease vaccine for cats
Inventor: CHALMERS WILLIAM S K
IPC: A61K39/12
Filed: 1992-09-24
Abstract: The present invention is concerned with the use of Bordetella bronchiseptica antigens for the prevention of upper respiratory disease in cats. These antigens may also be combined with Feline herpes virus, Feline calici and/or Chamydia antigens.
Patent CA-2080090-A1 (CA)
Title: Tool for manually tilling, loosening and aerating soil
Inventor: BRUNET ERIC
IPC: A01D9/00
Filed: 1992-10-07
Abstract: Abstract A tool for manually tilling, loosening and aerating soil and removing vegetation has relatively short handles that are spaced apart to permit the handles to be brought around the sides of the operator during use. Tines for engaging the soil are mounted on a crossbar and are of a length to project into the soil for tilling and turning the soil.  The handles are mounted in a pair of sleeves fixed to the crossbar at  opposite ends of the crossbar and extend upward toward and away from the operator, such that the operator grips the handles when they are held 10 to 15 degrees, and preferably 11 to 14 degrees, off the vertical with the tines projecting vertically into the soil.  The sleeves provide a means for holding the handles in position without welding or otherwise affecting the handle materials and thus provide strength and durability of attachment.  The sleeves may have means for releasably holding the handles in the sleeves, such as a cam member that tightens the sleeve about the handle.  The handles may be of varying lengths, or adjustable in length, and the tines may be 2 or more in number and may be supplemented by other ground engaging means, such as cutting blades.
Patent CA-2080356-A1 (CA)
Title: Polycarbonate/aromatic polyester blends containing an olefinic modifier
Inventor: LAUGHNER MICHAEL K
IPC: C08L23/02
Filed: 1991-04-04
Abstract: A polycarbonate blend of good impact and flexural strength, good heat distortion and weldline properties, and good solvent resitance prepared by admixing with polycarbonate an aromatic polyester, an olefinic epoxide-containing modifier (such as ethylene/vinyl acetate/glycidyl methacrylate terpolymer), and, optionally, a thermoplastic elastomer (such as a styrene/butadiene/styrene block copolymer), a rubber-modified styrene/acrylonitrile copolymer, and/or less than 5 wt percent of a graft polymer of the core-shell type (such as methacrylate/butadiene/styrene copolymer).