baber/WOPTO huggingface dataset:
Patent CA-2002861-A1 (CA)
Inventor: KNAPP JAMES H
IPC: B23K10/00
Filed: 1989-11-14
Abstract: NITRIDE REMOVAL METHOD                    Abstract of the Disclosure A method for removing nitride coatings from metal tooling and mold surfaces without damaging the underlying base metal includes placing the nitride coated metal surface into a plasma reactor and subjecting it to a gaseous plasma comprising a reactive fluorine species.  The reactive fluorine species may be derived from one or more of many well known gases.  An optional step of cleaning the nitride coating is recommended.
Patent CA-2004080-A1 (CA)
Title: Transfer method and arrangement for a film cassette unit in a panoramic x-ray apparatus
Inventor: HYTTINEN KLAUS
IPC: A61B6/14
Filed: 1989-11-28
Abstract: (57) Abstract The invention relates to a transfer method and an arrangement for a film cassette unit in a panoramic X-ray apparatus.  A film cassette unit (6), comprising a film cassette and cassette aggregate, is transferred either manually or electrically upwards from between patient and operator. After positioning a patient, prior to effecting the imaging, the film cassette unit (6) is lowered or descends automatically down to an imaging position.   The transfer can be effected either by turning around a horizontal axle (9) or by moving in vertical plane.            (Figs. 3 and 4)
Patent CA-2004511-A1 (CA)
Inventor: CHENG WU-CHENG
IPC: B01J29/06
Filed: 1989-12-04
Abstract: Catalytic cracking catalysts which contain bayerite and/or eta alumina are used to process hydrocarbon feedstocks that contain nickel.
Patent CA-2005577-A1 (CA)
Inventor: FADNER THOMAS A
IPC: B41N7/06
Filed: 1989-12-14
Abstract: HYDROPHOBIC AND OLEOPHILIC MICROPOROUS INKING ROLLERS      Abstract of the Disclosure An inking roller or ink metering roller comprised of a base roller, a substantially continuous hard and wear-resistant microporous ceramic coated layer bonded to the base roller and an interdiffused and immobilized oleophilic and hydrophobic essentially organic polymeric based material affixed to the surfaces and interstices of the microporous layer.
Patent CA-2005992-A1 (CA)
Title: Granulates for multiparticulate controlled-release oral compositions
Inventor: GROENENDAAL JAN W
IPC: A61P29/00
Filed: 1989-12-19
Abstract: Abstract Granulates for multiparticulate controlled-release oral compositions comprising biologically active substance in solid dispersion with an acid-resistance and/or release-limiting compound, the solid dispersion being mixed with water-insoluble carrier particles, and the preparation of such granulates, Preferred biologically active substance are corticosteroids, non-steroidal anti-inflammatory drugs and bismuth compounds. The granules have a preferred particle size of less than 1 mm.
Patent CA-2006944-A1 (CA)
Title: Pyrimidines and their pharmaceutical acceptable salts, and their use as medicines.
Inventor: MIZUCHI AKIRA
IPC: C07D405/14
Filed: 1989-12-29
Abstract: Abstract A novel pyrimidine is described for the treatment of neurological or cerebral diseases.  It has the general formula             (I) wherein R1 is hydrogen or lower alkyl, Z is a hydrogen or halogen atom or a lower alkyl or lower alkoxycarbonyl group and X and Y have a large number of possible meanings.
Patent CA-2007164-A1 (CA)
Title: Doppler blood flow system and method using special zero flow rate analysis
Inventor: SMITH DIRK R
IPC: A61B8/06
Filed: 1990-01-04
Abstract: ABSTRACT OF THE DISCLOSURE           A Doppler blood flow system and method in which an ultrasonic wave is reflected off of red blood cells in blood flowing in tubing. The reflected ultrasonic wave is digitally processed in the frequency domain. The flow rate of the blood is directly related to the average frequency of the Doppler signal. Because the Doppler blood flow system calculates flow rate solely on the basis of frequency, a special case exists at zero rate of flow where the received signal is not a valid Doppler flow signal, but rather purely noise. The noise at zero flow rate is random and will not have an average frequency which is unique to zero flow. The Doppler blood flow system and method must invoke a special case determination of when a zero flow condition in order to accurately provide a blood flow rate. The system utilizes a method of determining the rate of flow of a fluid containing particles flowing through a tube. An ultrasonic signal is transmitted through the tube at an oblique angle thereto. The ultrasonic signal which has been reflected off of the particles contained in the fluid is received as a received ultrasonic signal. The rate of flow of the fluid is calculated from the received ultrasonic signal using Doppler techniques. Whether the special case of the value of the rate of flow being equal to zero exists is determined and the value of the rate of flow is set equal to zero for the special case.     DOPPLER BLOOD FLOW SYSTEM AND METHOD         USING SPECIAL ZERO FLOW RATE ANALYSIS      Technical Field The present invention relates generally to Doppler blood flow measurement systems and techniques, and more particularly to Doppler blood flow measurement systems and techniques using the frequency domain signal analysis.            Background Art During cardiopulmonary bypass surgery, ventricular assist using blood pumps and other cardiac surgeries, blood flow external to the patient is necessary. Known blood pumps and so-called heart-lung machines operate to transport the blood of the patient through tubing or conduits in order to perform their function. During the transportation of blood in these external (to the body of the patient) tubes or conduits, it is extremely important for the surgeon to monitor the rate of flow of the blood so that abnormalities in the flow can be detected and corrective action can be taken.           Various systems and techniques have been utilized to measure the flow of blood, or other fluids, through tubes or conduits in the past.
Patent CA-2009899-A1 (CA)
Title: Animal ear tag
Inventor: CHU CHUN-TA
IPC: A01K11/00
Filed: 1990-02-13
Abstract: "ANIMAL EAR TAG"          ABSTRACT OF THE DISCLOSURE    An animal ear tag comprises a tag member and a pin member.  The tag member is foldable, marked with spaced indicia and formed with holes allowed to align as the tag member is folded, and the pin member has a shank for extending through a hole in an animal's ear and a longitudinal split, pliable enlargement portion at one end thereof to be inserted through opposed holes of the tag member in folded state and being formed with a surface for engaging one side of the tag member, and a flange at the other end for confining the other side of said folded tag member.
Patent CA-2010317-A1 (CA)
Title: Optical head for optical information recording/reproducing apparatus
Inventor: TADOKORO MICHIHIRO
IPC: G11B7/12
Filed: 1990-02-19
Abstract: ABSTRACT OF THE DISCLOSURE      An optical head for use in an optical information recording/ reproducing apparatus includes an optical system comprising a plurality of optical elements including a light-emitting element, and a casing which securely mounts at least part of the optical elements.  The casing is provided with a vibration damping material which is effective to damp vibrations of the casing.
Patent CA-2010903-A1 (CA)
Inventor: MORAND MICHEL
IPC: A47K10/40
Filed: 1990-02-26
Abstract: ABSTRACT     The invention is to a spindle for use in mounting a toilet paper roll thereon, and more particularly, for use in mounting a coil of toilet paper, without the core, on the spindle.  The spindle has a flange near its outer end that stops movement of the core as the toilet paper roll is pushed onto the spindle during mounting.  Continued pushing of the roll onto the spindle while the core is stopped, strips the coil of paper off the core.  The coil ends up on the spindle and the core is disposed of.
Patent CA-2010925-A1 (CA)
Title: Molding apparatus and method
Inventor: CARPENTER LARRY L
IPC: C03B11/08
Filed: 1990-02-26
Abstract: ABSTRACT OF THE DISCLOSURE       A method of molding precision glass optical elements or lenses is disclosed.  Precision molded glass molds are first provided which define a glass mold cavity having a predetermined desired size, shape and volume corresponding to the glass optical element.  To facilitate formation of the glass optical elements, shaped and polished preforms are formed.      An apparatus for molding glass optical elements by means of at least one molded glass mold is disclosed.  The optical element, which may be a lens and which may be formed of glass, is molded within an apparatus that comprises a pair of molds of which at least one is a molded glass mold, a contraining means and a ring disposed intermediate the molds.  The interior diameter of the ring and the mold surfaces of the molds comprise the optical element molding cavity.
Patent CA-2011225-A1 (CA)
Title: Monolithic seat made of injected plastics material
Inventor: GUICHON JEAN-PAUL
IPC: A47C5/12
Filed: 1990-03-01
Abstract: MONOLITHIC SEAT MADE OF INJECTED PLASTIC MATERIAL                   ABSTRACT            The chair according to the invention comprises a seat element with subjacent strengthening ribs, integral with four legs, a backrest and possibly armrests, said seat element further comprising:  in the median zone of its lower face and up to the vicinity of the rounded part joining with its backrest, a projecting extension of the rear rib extending in a slope for stacking and in its upper face an opening adapted to receive the projecting element of the chair or chairs stacked thereabove, the lowermost part of said projecting  element being  remote  from the  seat  element  by  a sufficient distance for the mould to be able to be equipped, beneath the impression defining the said rounded joining part, with a passage for a hot injection nozzle and cooling conduits.
Patent CA-2011287-A1 (CA)
Title: Circuit to automatically power down a cmos device which is latched up
Inventor: RATZ JAMES W
IPC: G05F3/20
Filed: 1990-03-01
Abstract: ABSTRACT OF THE DISCLOSURE           An integrated circuit protection device for resetting an integrated circuit when latch-up occurs. A switching means is connected in series with a current path to selectively control the flow of current through an integrated circuit. A voltage comparison means monitors changes in voltage which correspond to change in the currant flowing through the integrated circuit. The voltage comparison means operates cooperatively with a storage means to provide an output to control the switching switching means causes it to restrict current flow through the integrated circuit.
Patent CA-2016214-A1 (CA)
Title: N-heteroaryl-4-quinolinamines, a process for their preparation and their use as medicaments
Inventor: EFFLAND RICHARD C
IPC: A61P25/04
Filed: 1990-05-07
Abstract: ABSTRACT     There are described compounds OF the formula     (I) where -R is  ,                  or  , -R3 and R4 being independently  H, loweralkyl, -CHO, -CH=CH2, -CH=CH-loweralkyl, -CH=CHCO2C2H5, -CH2N(C2H5)2  or   - CH2 -N ;     -R1 when existent is -H, loweralkyl, CH2C3CH,, - CH2C=CCH2 -   or -CH C=CCH2     - R5, R5 being methyl or phenyl optionally mono-substituted with loweralkyl or loweralkoxy;      -R2 when existent is loweralkyl or -CH2C-CH;    -X is -H, loweralkyl, loweralkoxy, halogen or trifluoromethyl; and the two -Y groups when existent are both -H, or combine to constitute -(CH2) 4-;   which compounds are useful as analgesic agents, and for treating various memory dysfunctions characterized by decreased cholinergic function such as Alzheimer's disease.
Patent CA-2016515-A1 (CA)
Title: Fluid containers and ports therefor
Inventor: SCARROW DAVID
IPC: B31B70/64
Filed: 1990-05-10
Abstract: ABSTRACT              FLUID CONTAINERS AND PORTS THEREFOR     A container (30) has a body made of superimposed layers (34,36)  of flexible plastics film and a port  (10)  sealed between said layers.  The port (10) comprises superimposed layers (12,15,16,14) of flexible plastics film material which provide a central channel  (8).   A layer of non-sealable material (18) is located in said channel (8) during sealing of the port  (10)  to the container body   (30),  so as to prevent the opposing surfaces of the channel (8) from being sealed  together,  said  non-sealable  layer  (18)  being thereafter removed.   Preferably the port comprises two layers of film united at  one end thereof  and along opposite  sides thereof  to provide said channel with a rupturable closure at said one end.
Patent CA-2018125-A1 (CA)
Title: Personnel safety arrangements
Inventor: MASCARENHAS EVERARD J
IPC: G08B5/36
Filed: 1990-06-01
Abstract: ABSTRACT OF THE DISCLOSURE    An emergency evacuation arrangement comprises a plurality of sensors 30 to37 each for sensing an emergency situation, such as smoke, fire, or vibration, at a respective zone 11 to 18 of a structure l.   A processor 38 is provided, for receiving signals generated by the sensors 30 to 37, for generating alarm indication signals and escape route indication signals for energising, respectively, acoustic generators 39 to46 and visual escape route direction markers 48 to 54.   In any zone in which an emergency situation is sensed to exist, the processor 38 supplies alarm indication signals only and alarm indication signals in combination with escape route information signals in other zones.   The signals provided by the processor 38 may be pulsed in sequence and varied in frequency 80 as to sequentially indicate safe egress routes, either visually and or acoustically.
Patent CA-2019683-A1 (CA)
IPC: G03G15/00
Filed: 1990-06-22
Abstract: An electrostatographic printer with scanning laser beam for exposing a photoreceptor in accordance with image signals having black, white, and gray level image pixels, with a pulse-width modulator to modulate the beam when exposing gray level image pixels in response to current developing density as measured from the ac component of a combined ac/dc developer bias.
Patent CA-2020242-A1 (CA)
Title: Method and apparatus for extracting information-bearing portions of a signal for recognizing varying instances of similar patterns
Inventor: SCOTT BRIAN L
IPC: G10L15/02
Filed: 1990-06-29
Abstract: A method and apparatus for extracting information-bearing portions of an input signal from which is calculated a sliding average magnitude difference function (SAMDF). The signal is coupled to three separate data channels. Each channel is logarithmically spaced from the adjacent channel and time and amplitude normalized to generate a data template containing the information-bearing portions of the signal. In addition, a fourth channel is derived from the first three. Sixteen data measurements are taken, four from each of the four channels with three additional data measurements being derived from the energy envelope of the information-bearing portion of the input signal. The 19 total data measurements represent the amplitude normalized envelope of the signal.
Patent CA-2021968-A1 (CA)
Inventor: ORTEGA D IGNACIO MARTINEZ
IPC: B63B35/32
Filed: 1990-07-25
Abstract: An installation for collecting oils and fuels spilled at sea comprises one or several platforms in semi-flotation, each of which has a funnel for the entry in cascade of surface water. Around it there are several buoys or floaters which can be adjusted, and which are fitted on the support strips and operated by a descending cable which links the traction of all the buoys at a junction. The cable runs along side a flexible duct to a first tank reaching its bottom where it runs on to a pulley. In the return sector, it is fixed to a surface float to determine by the level in the tank the position of the buoys and, therefore, the height of the platform. From this tank, a pipe runs out to a second tank which has a surface buoy with another outlet pipe to an elevation pump. From there, there is an upward pipe which overflows the mixture in a tank, out of the water. There is an outlet pipe fox the oil with a stop cock. A further bottom pipe returns the clean water to the sea.
Patent CA-2024409-A1 (CA)
Inventor: AUBICHON ANDRE
IPC: E01H5/06
Filed: 1990-08-31
Abstract: ATTACHMENT FOR SNOW REMOVAL     ABSTRACT            An attachment,  to increase the efficiency of snow removal of vehicles equipped with a bucket, comprising, in one unit, a first side wing portion and a second side wing portion joined by a top portion.   This attachment is secured to the bucket by hooks, attached to the upper edge of the bucket, that engage slots in the top portion of the attachment.  This attachment can be secured to or released from the bucket of the vehicle solely by pivotal movements of the bucket without requiring the driver to dismount the vehicle.
Patent CA-2024763-A1 (CA)
Title: Thermoplastic elastomer composition
Inventor: OHMAE TADAYUKI
IPC: C08K3/22
Filed: 1990-09-06
Abstract: A thermoplastic elastomer composition having a flexural modulus as defined in JIS K7203 of from 500 to 15,000 kg/cm2, which is obtainable by melt kneading (A) from 20 to 60 parts by weight of a polyamide resin with (B) from 40 to 80 parts by weight of en ethylene copolymer comprising (a) from 40 to 90% by weight of an ethylene unit, (b) from 5 to 60% by weight of an .alpha.,.beta.-unsaturated carboxylic acid alkyl ester unit, and (c) from 0.3 to 10% by weight of a maleic anhydride unit, to obtain a composition (I), and further melt kneading 100 parts by weight of the composition (I) with (C) from 0.01 to 10 parts by weight of magnesium hydroxide is disclosed. A thermoplastic elastomer composition having a flexural modulus as defined in JIS K7203 of from 500 to 15,000 kg/cm2, which is obtainable by melt kneading (A) from 20 to 60 parts by weight of a polyamide resin with (B) from 40 to 80 parts by weight of an ethylene copolymer comprising (a) from 40 to 90% by weight of an ethylene unit, (b) from 5 to 60% by weight of an .alpha.,beta.-unsaturated carboxylic acid alkyl ester unit, and (c) from 0.3 to 10% by weight of a maleic anhydride unit, to obtain a composition (I), and further melt kneading 100 parts by weight of the composition (I) with (C) from 0.01 to 10 parts by weight of magnesium hydroxide and (D) from 0.01 to 20 parts by weight of at least one amino group-containing compound containing two or more amino groups per molecule, which is selected from the group consisting of aliphatic diamines, aliphatic diamine carbamates, aliphatic polyamines, alicyclic polyamines, aliphatic polyamines having an aromatic ring, aromatic amines, and tertiary amine compounds is also disclosed. The thermoplastic elastomer composition of this invention is flexible and tough over a wide temperature range and has an excellent balance of properties such as mechanical properties and thermal properties as well as a superior appearance.
Patent CA-2027003-A1 (CA)
Inventor: CHAPMAN GEORGE R JR
IPC: C08J3/28
Filed: 1990-10-05
Abstract: TITLE Processing Aid For Polymers ABSTRACT OF THE DISCLOSURE Polymer blend composition having improved processibility and comprising:                (a)  a major portion of a difficultly melt-processible polymer, and (b) a minor portion of:      (1)  at least an effective amount, to improve processibility, of a fluorocarbon copolymer which at the melt-processing temperature of (a) is either in a melted form if crystalline, or is above its glass transition temperature if amorphous, and (2)  at least an effective amount, to improve processibility, of at least one tetrafluoroethylene homopolymer or copolymer of tetrafluoroethylene and at least one monomer copolymerizable therewith, wherein the mole ratio of fluorine to hydrogen is at least 1:1, and which is solid at the melt-processing temperature of (a); masterbatches comprised of the processing aid: and processes utilizing the processing aid.
Patent CA-2028968-A1 (CA)
Title: Stabilized dispersed enzymes
Inventor: THAKORE YATIN B
IPC: C12N11/04
Filed: 1990-10-31
Abstract: ABSTRACT OF THE DISCLOSURE        Enzymes are immobilized, stabilized and evenly dispersed without destroying their activity by sequestering them within micropores of a solid carrier structure and filling the pores with a water-immiscible organic liquid, in which the enzyme remains active.  The preferred solid carrier is a microporous membrane.  The system is manufactured by providing a solid carrier having a microporous surface whose pores contain an aqueous solution, allowing an aqueous solution of enzyme to equilibrate with the solution in the pores, causing a controlled partial collpase of the pores to effectively trap the enzymes, and replacing the liquid in the pores with a water-immiscible organic liquid.  The system can be used to assay for or produce an organic compound.  It also can be used for slow release of an enzyme.
Patent CA-2029614-A1 (CA)
Title: Wavelength selective mode couplers
Inventor: POOLE CRAIG D
IPC: G02B6/34
Filed: 1990-11-08
Abstract: A mode coupler is disclosed which utilizes a circularly symmetric perturbation in an electromagnetic waveguide. Due to the circular symmetry of the perturbation, exact cross-sectional alignment of the perturbations is not needed when several of the devices are cascaded Further, the mode coupling response is wavelength dependent, and therefore, may be employed in electromagnetic filtering applications.
Patent CA-2029885-A1 (CA)
Title: Windscreen wiper system
Inventor: BATTLOGG STEFAN
IPC: B60S1/04
Filed: 1990-03-28
Abstract: (57) Abstract A windscreen wiper system has a wiper arm (29) provided with a swivell-ing drive (5), a pivot bearing (63) for a wiper blade (16) being provided on the free end part (28) of said wiper arm. The wiper blade (16) can be moved into a rest position in the region of the lower edge of the windscreen in which it lies approximately parallel to the wiper arm (29). A control mechanism (4) associated with the swivelling drive (5) ensures parallel guiding of the rotary wiper blade ( 16) and has a control element fastened to the vehicle with which a scanning element (6) belonging to the wiper arm is associated. For transition into the rest position, a device for change-over from parallel to swivelling guiding of the wiper blade (16) is provided. This comprises an adjusting drive (19) which places the control mechanism (4) out of action in a central working position and stops the rotary drive (50) of the wiper blade (16).
Patent CA-2032418-A1 (CA)
Inventor: GRISTON SUZANNE
IPC: E21B47/10
Filed: 1990-12-17
Abstract: ABSTRACT OF THE DISCLOSURE            An improved method for determining the transit time of a radioactive tracer for steam injection profiles in steam injection wells is disclosed.  Radiation decay data is collected at two detectors at different depths.  The data is then transformed into a new data set, consisting of time intervals between successive decay events.  Tracer radiation decay events are distinguished from background radiation decay events by using statistical methods to establish a high probability that background radiation decay events are excluded.  The total set of time intervals are then divided into subgroups of a specified sample size.  The arrival time of the tracer is determined as the first time at which a specified minimum number of identified tracer radiation decay events occur successively.
Patent CA-2032445-A1 (CA)
Title: Imidazo[4,5-c]pyridines as antiosteoporotic agents
Inventor: SANTILLI ARTHUR A
IPC: C07D471/04
Filed: 1990-12-17
Abstract: ABSTRACT   This invention relates to 2-substituted-imidazo[4,5-c]pyridines, to the process for their preparation, to pharmaceutical compositions containing said 2-substituted-imi-dazo[4,5-c]pyridines and to the use of said 2-substituted-imidazo[4,5-c]pyridines for modifying the balance between bone production and bone resorption in a host animal, including man.