baber/WOPTO huggingface dataset:
Patent CA-2010145-A1 (CA)
Title: Cryogenic precooler for superconductive magnets
Inventor: DORRI BIZHAN
IPC: H01F6/00
Filed: 1990-02-15
Abstract: CRYOGENIC PRECOOLER FOR                 SUPERCONDUCTIVE MAGNETS                 Abstract of the Disclosure A precooler with a geometry that permits it to be mounted in a cryocooler interface and to use the same thermal connections at the heat stations is provided.  The precooler has two stages each with its own heat exchanger, thermally isolated from the other.  The latent heat of evaporation of cryogenic liquids is used to remove the sensible heat of superconductive magnet.  The different stages can be cooled at a controlled rate resulting in reduced temperature gradients and therefore lower thermal stresses.
Patent CA-2011678-A1 (CA)
Inventor: DENMAN OWEN S
IPC: E01F15/00
Filed: 1990-03-07
Abstract: ABSTRACT OF THE DISCLOSURE           An array of inertial barriers positioned on a support surface alongside a vehicle roadway includes a number of separate containers, each having an outer wall and a lower portion.  An inner core is positioned within each container to define an annular space between the core and the respective outer wall.  This annular space defines an average inner diameter which is at least about 25% of the average outer diameter of the annular space.  A dispersible material such as sand is disposed in the annular spaces such that no more than 10% of the mass of sand in any container of the array extends in an uninterrupted disc across the respective container.
Patent CA-2012733-A1 (CA)
Title: Liquid separating apparatus
Inventor: ESSOP SALEAM
IPC: B01D17/02
Filed: 1990-03-21
Abstract: A B S T R A C T            A liquid separating apparatus is provided for separating a liquid  mixture  into  its  immiscible  constituents  of different densities. The apparatus comprises a separating tank (12 ) in communication with a discharge tank (18 ) . The separating tank (12 ) has an inlet for introducing the mixture  to  the  apparatus  and a first outlet(16)for the mixture constituent of lower density. The discharge tank (18 )  has a second outlet(20)for the mixture constituent of higher density.  The relative levels of the first and second outlets iare higher than the mixture inlet ,  the first outlet(16)being at a higher level than  the  second outlet. A communication passage  is provided  between  the separating tank  (12 )  and  the discharge  tank  (18  ) through a base of the apparatus.
Patent CA-2012811-A1 (CA)
Title: Resonant inverter with improved control
Inventor: SCHUTTEN MICHAEL J
IPC: H02M3/28
Filed: 1990-03-22
Abstract: RD-18,831 RESONANT INVERTER WITH IMPROVED CONTROL                      Abstract of the Disclosure A series resonant inverter is controlled to provide a substantially constant output voltage to a load.  The control utilizes a combination of optimal control methods and phase modulation to enable time optimal responses to changes in state of the system.  State determinants (including resonant capacitor voltage, resonant inductor current, source voltage, and output load voltage) are continuously monitored, and an optimal control signal is generated therefrom.  When operating within the operable frequency range of the inserter's controllable switch means, frequency is varied to maintain proper operation.  When operating at an extremity of the operable frequency range, phase modulation is employed.
Patent CA-2014263-A1 (CA)
Title: Compounds
Inventor: O'HANLON PETER J
IPC: C07D413/14
Filed: 1990-04-10
Abstract: B2719/Abs. Abstract Novel Compounds A compound of formula (I):1                         (I) in which R0 denotes an optionally substituted isoxazol-5-yl, fury-2-yl or fur-3-yl group, has anti-bacterial and  anti-mycoplasmal activity and may be prepared by a variety of processes from suitable derivatives of monic acid A.
Patent CA-2015649-A1 (CA)
Title: Pharmaceutical composition for preventing and treating thrombosis
Inventor: KATO KOICHI
IPC: A61K31/365
Filed: 1990-04-27
Abstract: Abstract of the disclosure:         PHARMACEUTICAL COMPOSITION         FOR PREVENTING AND TREATING THROMBOSIS        A pharmaceutical composition for preventing and treating thrombosis containing, as an active component, a saccharoascorbic acid derivative such as 2,3-di-O-benzyl-D-glucosaccharoascorbic acid n-octadecanethiol ester is disclosed.
Patent CA-2016476-A1 (CA)
Inventor: TEDESCHI GIOVANNI
IPC: E06B9/56
Filed: 1990-05-10
Abstract: A plate for closing one end of a box for housing a window shade roller, includes a cylindrical recess made in the plate coaxially to a through hole and into which a bushing is placed. The bushing is provided with an axial hole having a polygonal cross section and two strikers suited to fit into corresponding notches in the recess. A spring placed inside the recess on a collar integral with the bushing, locks the strikers and notches and prevents axial rotation of the bushing. A washer fastened to the plate closes the recess. A non-round tang extending from one end of a roller can engage the hole in the bushing.      Axially pushing on the bushing while rotating the bushing achieves the release of the strikers from the notches, and allows adjusting of the loading of the window shade roller by rotating the tang.
Patent CA-2018308-A1 (CA)
Inventor: KELLEY JAMES L
IPC: A61P25/08
Filed: 1990-06-05
Abstract: The present invention discloses a class of novel 1,2,4-triazolo[4,3-a] pyrazines, pharmaceutical compositions containing them and methods for their preparation. Such compounds are shown to have anticonvulsant properties and, therefore, be useful in the treatment of epilepsy.
Patent CA-2021009-A1 (CA)
Inventor: WALLEN J MICHAEL
IPC: C08K5/58
Filed: 1990-07-12
Abstract: An improved unplasticized polyvinyl chloride composition for forming articles for exterior use such as house siding and window profiles includes a polymeric organic impact modifier, at least one thermal dehydrochlorination stabilizer, and an ultraviolet stabilization system. The ultraviolet stabilization system includes from about 0.2 - 15 parts by weight of the polyvinyl chloride resin of rutile titanium dioxide and less than about 5 parts by weight of the polyvinyl chloride resin of magnesium oxide. Inclusion of magnesium oxide in the unplasticized polyvinyl chloride composition permits the extrusion of ultraviolet resistant sid-ing and window profiles including relatively low levels of titanium dioxide.
Patent CA-2033045-A1 (CA)
Inventor: DESHAYES JEAN-PIERRE
IPC: G01J1/00
Filed: 1990-12-21
Abstract: The invention relates to the use of a source of light to calibrate a radiometric optical instrument whose focal plane contains photoelectric detectors converting the illumination from the image into an electrical signal. The calibration is carried out by placing the source (3) in the entrance pupil (2) or in the aperture diaphragm of the instrument. 
<??>Application particularly to the calibration of an optical instrument carried on board a satellite. 
<IMAGE>
Patent CA-2033883-A1 (CA)
Title: Steerable air bar/edge dam apparatus
Inventor: WIMBERGER RICHARD J
IPC: B65H20/10
Filed: 1991-01-09
Abstract: An apparatus is provided which both floatingly supports a web, and maintains the web in a substantially straight path as it travels through a dryer. The apparatus comprises a steerable air bar assembly comprising: i) one or more adjustable air bars, each having an elongated surface from which air may be discharged, said surface being in opposing relation to the running web, and each having two ends; ii) air supply means, in fluid communication with the air bars; and iii) adjustment means for altering the orientation of the elongated surfaces of the adjustable air bars with respect to the running web, In a preferred embodiment the orientation of the, surfaces is adjusted such that each said surface rotates about an axis which is substantially parallel to the longitudinal centerline of the running web. Said steerable air bar assembly is positioned in a web dryer such that the web is guided through the dryer in a substantially straight path. A plurality of such steerable air bar assemblies can be used in a web dryer. The dryer can also include one or more fixed air bars.      In a preferred embodiment of the invention, the apparatus further comprises in combination with the steerable air bar assembly, back pressure means for creating an opposing force to urge the web back to a substantially centered position. Said back pressure means preferably comprises one or more edge dams preferably disposed at or near the ends of one or more fixed air bars in the web dryer.
Patent CA-2035497-A1 (CA)
Inventor: LORENCE MATTHEW W
IPC: B65D81/34
Filed: 1991-02-01
Abstract: A microwave interactive heater element for heating a food item in a microwave oven, the heater element having a substrate, and a microwave interactive heating layer deposited on the substrate. The microwave interactive heating layer is operable to heat responsive to an electric field component of microwave radiation at a predetermined microwave frequency, the microwave interactive heating layer being operable to provide a temperature compensating heating performance during exposure to microwave radiation at the predetermined microwave frequency so that when the temperature of the microwave interactive heating layer increases between 23 DEG C and 250 DEG  C, the rate of heating will generally decrease. <IMAGE>
Patent CA-2036809-A1 (CA)
Inventor: SHIRATSUCHI SHINICHI
IPC: H04N7/00
Filed: 1991-02-21
Abstract: A sampled data interpolator includes a linear interpolator coupled in parallel with a nonlinear compensation signal path. The nonlinearly processed signals and the linearly interpolated signals are summed to produce interpolated samples.     The nonlinear compensation signal path includes a finite impulse response filter having tap weights conforming to a sinc function, and a weighting circuit for scaling filtered samples by a normalized sine function.
Patent CA-2039686-A1 (CA)
Inventor: SOGA ITSUYA
IPC: H04N1/419
Filed: 1991-04-03
Abstract: A one-dimensional coding method for compressing the amount of image data in facsimile machies and image filing systems.  Unlike the prior art one-dimensional coding method which attaches an end-of-line code to every line, the method according to the invention attaches an end-of-line code to a plurality of lines equal to a predetermined number of lines.          Alternatively, the novel method allows an end-of-line code to be attached to only selected lines according to a decision table in which are established beforehand the line numbers of the lines to which an end-of-line code is to be attached each.
Patent CA-2040447-A1 (CA)
Title: Fluid purification apparatus
Inventor: RITCHIE DAVID G
IPC: F24S10/40
Filed: 1991-04-15
Abstract: ABSTRACT OF THE DISCLOSURE     Apparatus for the purification of a fluid, such as water, which in the presence of light of an activating wavelength brings the fluid into contact with surfaces with fixed photoreactive coatings of anatase (TiO2) or other photoreactive semiconductors, thereby detoxifying, reducing or removing organic pollutants therefrom.  The apparatus includes a substrate coiled longitudinally and helically around a transparent sleeve.  The substrate has photoreactive semiconductor material bonded thereto.  The substrate defines a helical path through an annular cylindrical housing.
Patent CA-2042073-A1 (CA)
Inventor: ROACH WILLIAM W
IPC: B64F1/22
Filed: 1991-05-03
Abstract: ABSTRACT OF THE DISCLOSURE               A maneuverable, wheeled, steerable vehicle is used for transporting  helicopters  of  the  type  having  landing skids.   Such helicopters typically have cross bars under the body proper, with downward-curving  arms  to  the  skids.   The  invention  includes  two mutually parallel booms which extend from the vehicle body parallel and  close  to  the ground.   One of the booms  is laterally movable toward and away from the other boom, which is fixed to the vehicle frame.   In use,  the booms are laterally spaced;  the vehicle then goes  forward  to  slide  the  booms  under  the  cross  bars  of  the helicopter body.  Lift bars attached to each boom then raise the helicopter  up so  that  the  vehicle  can  transport  it. The  booms include a gang of small, hydraulically swivelled steering wheels at the ends distal the vehicle.  Each lift bar swings upward on double parallel pivot arms at either end of each boom.  The pivot axes are horizontal.  When the helicopter  is lifted off the ground by the lift bars, the two large wheels on the main vehicle body are driven through a differential gear to move the vehicle and the helicopter.          Power is hydraulic throughout; a small engine drives the hydraulic pump.
Patent CA-2042506-A1 (CA)
Title: Control of addition of conditioning agents to flue gas
Inventor: KRIGMONT HENRY V
IPC: B01D53/34
Filed: 1991-05-14
Abstract: CONTROL OF ADDITION OF CONDITIONING AGENTS TO FLUE GAS    ABSTRACT OF THE DISCLOSURE        Additions   of   conditioning   agents   to  a particulate-containing    flue    gas    stream   are controlled    by    a   controller   operating   from feedforward   and   feedback  signals  received  from sensors  in  the  combustion  and gas cleanup system, and,  optionally, from the power consumption level of the  electrostatic  precipitator.   The flow rates of the  conditioning agents, such as sulfur trioxide and ammonia,  are  thereby balanced to achieve an optimal removal  of  particulate  matter  and also sulfur and sulfur  compounds  from  the  gas stream before it is exhausted  to  the atmosphere.  A typical feedforward signal  is  the  boiler loading, and typical feedback signals  include residual sulfur trioxide and ammonia levels and stack gas opacity.
Patent CA-2045077-A1 (CA)
Inventor: MARESCAUX CHRISTIAN
IPC: A61K31/685
Filed: 1991-06-20
Abstract: Compounds having GABA B-antagonistic properties, for example those of formula I   see Formula I   wherein one of the radicals R1, R2 and R3 is hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another is hydrogen or, in the case of R1 or R2, hydroxy or, in the case of R1, halogen or, in the case of R2 together with R2', oxo, and the remaining radical is hydrogen, R1' is hydrogen or halogen, R2' is hydrogen, hydroxy or, together with R2, is oxo, R4 and R5 are hydrogen or R4 is an araliphatic or heteroarylaliphatic radical and R5 is hydrogen or an aliphatic radical, and R is an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic, araliphatic, heteroarylaliphatic or aromatic radical having at least 2 carbon atoms or, when R1 is hydrogen or hydroxy, R2 is an aromatic radical and R1', R2' and R3 are hydrogen, R is methyl, and their pharmaceutically acceptable salts, can be used as active ingredients in medicaments for the treatment of epilepsies of the "petit mal" type. The invention relates also to novel compounds of formula I and processes for the preparation thereof.
Patent CA-2045294-A1 (CA)
Inventor: GLASS MITCHELL
IPC: A61K38/05
Filed: 1991-06-24
Abstract: ABSTRACT                         AGENT FOR THERAPY           The invention includes a novel therapeutic agent comprising a specified peptide derivative for use in the prevention or treatment of haemorrhagic conditions associated with acute non-lymphocytic leukaemia or its therapy, the use of the peptide derivative in the manufacture of a medicament for the prevention or treatment of said haemorrhagic conditions, as well as a method of prevention or treatment of said haemorrhagic conditions using the peptide derivative.
Patent CA-2045538-A1 (CA)
Inventor: SAFIR GENE R
IPC: A01N63/30
Filed: 1990-11-19
Abstract: Description d'une méthode et de compositions pour stimuler, avec des isoflavonoïdes, la croissance de champignons mycorhizes à vésicules et à arbuscules seuls ou en présence de matériel végétal. Les isoflavonoïdes ont de préférence la formule (I), dans laquelle R1, R2 et R3 sont choisis dans le groupe composé d'hydrogène, d'hydroxyle et d'alcoxy, en particulier de méthoxy
Patent CA-2045653-A1 (CA)
Inventor: DAVIES LAWRENCE W
IPC: E06B3/54
Filed: 1990-09-28
Abstract: A sash window is formed from a frame profile (20) and a sealed window unit comprising a pair of spaced parallel glass panels (10, 13). The frame profile includes a channel section with a transverse web (22) and upstanding side walls (23, 24) which are formed in-tegrally without separate stops and integrally with a sup-port element (21) for the window frame. The frame pro-file (20) is manufactured by pultrusion to provide a coef-ficient of expansion very close to that of glass. The sealed window unit is sealed to the window frame by a bead (32) of sealant material only at the corner between the inner face of the window unit and the transverse web supporting the side edge of the window unit. The sealant is thus protected from exposure to the elements. A drain-age opening (28) is provided in the web to allow the es-cape of moisture passing between the direct contact be-tween the outer side wall and the outer face of the win-dow unit.
Patent CA-2045969-A1 (CA)
Inventor: MATSUMIYA TOSHIHARU
IPC: C12M3/00
Filed: 1991-06-28
Abstract: ABSTRACT OF THE DISCLOSURE    Disclosed herein is a culture bag which has a culture room formed by fusion-bonding a transparent sheet and at least one opening formed therein, said sheet being made of a resin composition composed of 100 parts by weight of vinyl chloride homopolymer or copolymer and 150-260 parts by weight of ethylene-n-butyl acrylate-carbon monoxide copolymer, and having a gas permeability of 600-3000 ml/m2?24hr?atm to oxygen and a gas permeability of 1000-30,000 ml/m2?24hr?atm to carbon dioxide.
Patent CA-2046500-A1 (CA)
Title: Mortar and concrete workable in a wet spraying process, and procedure for use thereof
Inventor: BURGE THEODOR A
IPC: C08L61/00
Filed: 1991-07-09
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed are concrete and mortar compositions for wet spraying, that have prolonged setting times (retarded long enough to be delivered from a ready mix plant to a construction site and remaining workable for up to 2 days thereafter), but which can be brought to immediate stiffening, setting and quick hardening by the addition of certain setting accelerators, particularly those based on potassium aluminate.
Patent CA-2047174-A1 (CA)
Title: Process and means for the microbiological remediation of polluted soil and microorganisms for use in said process
Inventor: VALO RISTO J
IPC: C12N11/08
Filed: 1990-02-27
Abstract: 2047174 9010079 PCTABS00002 The invention relates to a process for the microbiological remediation of soil polluted by chlorophenols, the soil to be decontaminated being composted with the chlorophenol-degrading microorganisms and the conditions being adjusted so that they favour for the growth of the microorganisms. According to the invention such chlorophenol-degrading microorganisms of the genus Rhodococcus and Mycobacterium are preferably used which are capable of degrading the chlorophenols also in field conditions. According to the invention the microorganisms are preferably immobilized in a solid porous support.
Patent CA-2048645-A1 (CA)
Inventor: HIETALA ALEXANDER W
IPC: H03M3/00
Filed: 1991-04-22
Abstract: A fractional-N synthesizer employing at least a second order sigma-delta modulator is disclosed. The most significant bits from the output accumulator (1011) of the sigma-delta modulator are used as the carry out control for the variable divisor of the loop divider (103). Modulation to the synthesizer is introduced as part of the digital number input to the sigma-delta modulator and spurious signal output is realized by selection of a large number as the denominator of the fractional portion of the loop divider divisor.
Patent CA-2049250-A1 (CA)
Title: Exposure control process and photographic copying apparatus
Inventor: STROBEL CHRISTA
IPC: G03B27/32
Filed: 1991-08-15
Abstract: Exposure Control Process and Photographic Copying Apparatus ABSTRACT   The copying light of a source of copying light is attenuated in areas using a mask with different density ranges to influence the density by areas of a copy to be produced from a copy master. The appropriate area of the mask is selected by analyzing a location dependent density variation of the mask stored in matrix form in a computing andevaluating unit by predetermined criteria. A photographic copying apparatus associated with the process includes an exposure station with a mask mounted on a slide. The slide may be displaced in response to control signals determined and generated in the computing and evaluating unit. The slide is displaced in a plane parallel to a transport plane of the copy master in the beam path of a source of copying light.
Patent CA-2053914-A1 (CA)
Title: Free-flowing, quick-dissolving dry adhesive powders, a process for their production and use
Inventor: WEGNER JUERGEN
IPC: C09J101/26
Filed: 1990-04-11
Abstract: A b s t r a c t Free-flowing. quick-dissolving dry adhesive powders. a process for their production and their use The invention relates to free-flowing,  fine-grained dry powders based on a water-soluble and/or water-swellable combination of nonionic cellulose ethers and dried redis-persion polymers,  if  desired  in  admixture  with other adhesive and/or non-adhesive auxiliaries.   The new dry powders  are  characterized by  a grain  structure  which comprises closed cores of the nonionic cellulose ethers surrounded by and joined firmly to a shell of the redisper-sion polymer.  In another embodiment, the invention relates to the process for the production of these new free-flowing dry powders which is characterized in that the nonionic cellulose ethers are thoroughly mixed in the form of a powder with the aqueous polymer dispersion, the temperature of the aqueous phase is kept at least at or above the cloud or flocculation point of the nonionic cellulose ethers used and the aqueous mixture is subjected to spray drying under these conditions.   The new combination materials may be widely used as adhesives and/or binders having improved properties.
Patent CA-2055023-A1 (CA)
Inventor: WATARI SIGENOBU
IPC: A01G7/00
Filed: 1991-11-06
Abstract: Artificial ground can be utilized in green of a golf course or the ground unsuitable for cultivation. The artificial ground includes a collection layer having an inclined sheet member capable of collecting liquid agricultural chemicals or water, a soil supporting layer having a water-penetrative soil supporting member disposed on the collection layer, and an artificial soil layer having artificial soil disposed on the soil supporting layer, for example, the artificial soil containing as a main component remainder of fermentation material which is subjected to at least control of water and combined with at least one or two additives required for soil constitution.
Patent CA-2055803-A1 (CA)
Inventor: SANDERS GUS C
IPC: H04Q11/04
Filed: 1991-11-19
Abstract: A line unit, used in a line shelf having a line shelf processor and common logic, is provided with an EEPROM device for storing information relative to the line unit. The stored information includes line unit type identification codes, auto provisioning data, gain and equalization adjustment data and signaling translation tables. The data contained within the EEPROM may be utilized by the line shelf processor to provide automatic initialization and provisioning of the line unit when first inserted into the line shelf, and automatic signaling translation so that line unit signaling becomes compatible with a transmission facility connected to the line shelf. The need for factory preset resistors installed in the line unit may be eliminated by storing within the EEPROM a required gain setting. <IMAGE>