baber/WOPTO huggingface dataset:
Patent CA-2005621-A1 (CA)
Inventor: KRISTMANSON DONALD J
IPC: E02B3/06
Filed: 1989-12-15
Abstract: ABSTRACT OF THE DISCLOSURE            HINGE ASSEMBLY FOR CONNECTING A FLOAT TO A BASE            A hinge assembly for connecting a float to a base includes a male member connected to one of the base and the float having a cylindrical outwardly extending boss and a female member connected to the other of the base and the float having a cylindrical, inwardly-extending recess.  A resilient, rubber-like bearing sleeve encircles and engages the outer circumference of the boss and is of a thickness to fit between the boss and the recess to rotatably attach the recess about the outer circumference of the sleeve.
Patent CA-2007016-A1 (CA)
Title: Laundry treatment article
Inventor: KARPUSIEWICZ WILLIAM M
IPC: C11D17/04
Filed: 1990-01-03
Abstract: LAUNDRY TREATMENT ARTICLE                ABSTRACT OF THE DISCLOSURE           An article for delivering a gleaning composition to a wash water, preferably for laundering clothes, is formed from a flexible substrate folded into a C-shaped arrangement.   Within the folded substrate is positioned a detergent composition that includes a surfactant and builder in the form of a semi-solid having adhesive strength sufficient to bind the two surrounding substrate areas together.   No other bonding is present between the substrate flaps.  Detergent composition is easily released to a wash water when the article is placed therein.         In a development the substrate is folded into an S-shaped construction.   Within one region of the folded substrate is positioned a detergent composition.   In a second region of the folded substrate separate from that occupied by the detergent composition, there is a further composition, also adhesive in nature.   It may contin a component which may be a bleach, bleach precursor, enzyme and/or fabric softener.
Patent CA-2007226-A1 (CA)
Title: Nonlinear aromatic polyamide fiber or fiber assembly and method of preparation
Inventor: MCCULLOUGH FRANCIS P JR
IPC: D01F9/30
Filed: 1990-01-05
Abstract: ABSTRACT         The invention resides in a nonlinear aromatic polyamide fiber having a reversible deflection of greater than 1.2:1 when measured at ambient temperatures, a variation of fiber diameter not more than 15 percent at the bends or crimps of the fiber, and a bending strain value of less than 50 percent, and the method of preparing said fiber.
Patent CA-2007613-A1 (CA)
Title: Persistent photoconductive coating composition
Inventor: SHIMAZU KEN-ICHI
IPC: C08L61/06
Filed: 1990-01-11
Abstract: PERSISTENT PHOTOCONDUCTIVE COATING COMPOSITION            ABSTRACT OF THE DISCLOSURE     A persistent photoconductive coating composition contains a persistent photoconductor, photoinitiator and an acetate or phenolic hydroxyl-containing resin dispersed in an inert coherent matrix.
Patent CA-2007666-A1 (CA)
Title: Jumper cable clamp for connecting car batteries
Inventor: LEE KUO-SHU
IPC: H01R11/24
Filed: 1990-01-12
Abstract: JUMPER CABLE CLAMP FOR CONNECTING CAR BATTERIES                 Abstract of the Disclosure A jumper cable clamp to connect car batteries, which includes a conventional terminal clamp having an insulated guide block set in one of the two clamping elements, which guide block comprises a guide way for setting therein of a conductive charging clip, which conductive charging clip is further connected with an expansion spring,  which expansion spring is further connected with an indicator lamp.  The conductive charging clip may be pulled out and firmly engaged by the metal clamping jaw of the opposite clamping element, such that the conductive charging clip serves to clip on the battery terminal.   Further, the indicator lamp will be turned on to give a warning signal if the clamp is secured to the wrong battery terminal.
Patent CA-2010676-A1 (CA)
Inventor: KRAUS FREDERICK L
IPC: F16B35/06
Filed: 1990-02-22
Abstract: An assembly for protecting a decorative surface includes a support structure and a trim piece positioned over the support structure including an outer decorative surface.  A protective sheet is removably adhered to the outer decorative surface.  Screws extend through corresponding openings in the trim piece and protective sheet for securing the decorative sheet to the support structure.  The protective sheet has a closed loop, weakened parting line surrounding and spaced outwardly from each of the screw receiving openings.  The head of each screw includes an inner portion engaging the protective sheet and having a diameter substantially the same as the material enclosed in the parting line and a larger diameter outer portion extending radially beyond the inner portion and spaced from the protective sheet.  Then the protective sheet is peeled from the decorative surface of the trim piece the decorative sheet separates along the parting line without leaving protective sheet residue extending out from under the head of the screws.
Patent CA-2011925-A1 (CA)
Inventor: MARCHAND GARY R
IPC: C08F2/38
Filed: 1990-03-12
Abstract: A process for preparing polymers by means of the anionic polymerization of polymerizable monomers comprising contacting one or more anionically polymerizable monomers with an alkalimetal-containing anionic initiator under anionic polymerization condition characterized by terminating the polymerization by contacting the reaction mixture with an inorganic acid selected from sulfuric acid, phosphoric acid and mixtures thereof.
Patent CA-2012761-A1 (CA)
Title: Thermoplastic polyblends of aromatic polycarbonates and thermoplastic polyurethanes
Inventor: SKOCHDOPOLE RICHARD E
IPC: C08L69/00
Filed: 1990-03-22
Abstract: ABSTRACT         Binary thermoplastic polyblends consisting essentially of from 65 to 95 weight percent of a thermoplastic aromatic polycarbonate and from 5 to 35 weight percent of a thermoplastic polyester polyol-based polyurethane having a Shore Hardness of from 70A to 70D exhibit improved hydrocarbon solvent resistance over polycarbonate resins.
Patent CA-2014178-A1 (CA)
Title: Pipe arrangement for distribution of air in a paper machine
Inventor: VIRTA RAIMO
IPC: F26B21/00
Filed: 1990-04-09
Abstract: ABSTRACT OF THE DISCLOSURE         An air-distribution pipe for fitting in a transverse direction of a machine in spaces in the machine requiring gaseous flow for a purpose such as ventilation and which tend to gather contaminants.  The pipe includes a drum arranged so as to revolve about its longitudinal axis, a mantle of such drum being provided with perforations through which air can be blown from the interior of the drum into space surrounding the drum.  An air inlet duct is connected to at least one end of the drum, and through such duct blown air can be passed into the interior of the drum.
Patent CA-2014545-A1 (CA)
Title: Fluorinated bile acid derivatives, processes for the preparation thereof and pharmaceutical compositions containing them
Inventor: PELLICCIARI ROBERTO
IPC: C07J9/00
Filed: 1990-04-12
Abstract: A compounds of general formula I      wherein R1 is hydrogen or hydroxy, and the hydroxy group at the 7-position can be either in or B configuration, are valuable in human therapy. Compounds I can be prepared by fluorination of the suitably protected 6 -hydroxy-7-keto-derivatives.
Patent CA-2017481-A1 (CA)
Inventor: MATTSSON BERTIL
IPC: H02J7/10
Filed: 1990-05-24
Abstract: ABSTRACT            Method  for  high-rate charging of  batteries  with  sealed cells,  whereby  through  supplied  charging  current  the efficiency the single battery cell is actively influenced such that the charging time and temperature rise of the cell is minimized such that in a first step the battery is dis-charged  to  a  voltage UB slightly higher  than  a first reference voltage (UO) whereafter in a first recharging step the supplied charging current IB is controlled progressively increasing according to the function IB = k (UB - UO) where k is an adjusted constant, until the pole voltage has reached a second reference voltage UB = ? where ? is maximum battery voltage and in a second charging step the charging current IB is controlled through voltage feedback such that UB = ? whereby the amount of the supplied charging current is determined by the charging state of the battery cells. The first and second charging step can also be repeated with a fixed time interval with a free running time interval without charging current a number of cycles until a state of full charge is reached.
Patent CA-2018739-A1 (CA)
Title: Oil-wetting treatment for reducing water coning in an oil reservoir
Inventor: KISMAN KENNETH E
IPC: E21B43/22
Filed: 1990-06-11
Abstract: "OIL-WETTING TREATMENT FOR REDUCING WATER CONING              IN AN OIL RESERVOIR"         An oil well producing water is treated to reduce the water cut by injecting through the well into the reservoir a composite slug comprising:          -    a relatively small volume of carrier oil containing an oil-wetting agent (typically 0.2 m3 of a viscous mixture  of  surfactants  adapted  to  render  the reservoir matrix oil-wetted and about 15 m3 of light hydrocarbon); and -    a relatively large volume of non-condensable gas (typically 50,000 to 200,000 m3.    The well is then placed back on production.  The oil-wetting agent modifies the reservoir matrix in the near-wellbore region by reducing its relative permeability to water.  The gas modifies the matrix further out into the reaches of the reservoir.
Patent CA-2018954-A1 (CA)
Inventor: LARIMER VICTOR L
IPC: G03F7/32
Filed: 1990-06-13
Abstract: A method and composition for developing an image formed by exposing a portion of a photopolymerizable layer to actinic radiation and removing the portion of the photo-polymerizable layer not exposed to actinic radiation by washing the unexposed portion to the developer composition comprising a monoterpene, N-methylpyrrolidone and an aro-matic alcohol.  Optionally, a nonionic surfactant can be included in the developer composition.
Patent CA-2023879-A1 (CA)
Title: Optical fiber connector
Inventor: TAKEDA MITSURU
IPC: G02B6/38
Filed: 1990-08-23
Abstract: OPTICAL FIBER CONNECTOR               Abstract of the Disclosure An optical fiber connector using precision ferrule, in which either one of a pair of ferrules (30A) and (30B) can move backwardly while constraining spring (50), the optical connection is not interrupted.
Patent CA-2026455-A1 (CA)
IPC: F23C6/04
Filed: 1990-09-28
Abstract: Abstract of the Disclosure The known boiler furnace combustion system of the type that main burners are disposed on side walls of or at corners of a square-barrel-shaped boiler furnace having a vertical axis, the burner axes are directed tangentially to an imaginary coaxial cylindrical surface, also additional air blow nozzles are disposed in the boiler furnace at a high level than the main burners, so that unburnt fuel left in a reducing atmosphere or a low oxygen concentration atmosphere of a main burner combustion region can be perfectly burnt by air blown through the additional air blow nozzles, is improved.  The improvements reside in that the additional air blow nozzles are dis-posed as divided into at least two groups at higher and lower levels, the additional air blow nozzles at the lower level are provided at the corners of the boiler furnace with their axes directed tangentially to a second imaginary coaxial cylindrical surface having a larger diameter than the first imaginary coaxial cylindrical surface, and the additional air blow nozzles at the higher level are pro-vided at the centers of the side wall surfaces of the boiler furnace with their axes directed tangentially to a third imaginary coaxial cylindrical surface having a smaller diameter than the second imaginary coaxial cyl-indrical surface.
Patent CA-2026597-A1 (CA)
Title: Process for the preparation of 7-amino-3-[ (z)-1-propen-1-yl] -3-cephem-4-carboxylic acid
Inventor: LANZ JOACHIM
IPC: C07D501/00
Filed: 1990-10-01
Abstract: ABSTRACT  OF THE DISCLOSURE         (7-APCA) having the formula (I)               (I) which is an important synthesis intermediate in the preparation of cephalosporin-like antibiotics, is prepared by treating a compound of the formula (II)              (II) in which R1 and R2 represent alkyl, aryl and aralkyl radicals, with a strong protonic acid or with a Lewis acid.  Compound (II) is prepared by adding triphenylphosphine and alkali metal iodide to a compound of the formula (VI)               (VI) then reacting with acetaldehyde in base.  Compound (VI) is prepared by treating a compound of the formula (VII) (VII)   Le A 27 052 with a base in a polar solvent at -70°C to 0°C.  Compound (VII) is prepared by treating a compound of the formula (VIII) (VIII)   with a chlorinating agent in an organic solvent.           Le A 27 052
Patent CA-2026695-A1 (CA)
Inventor: SAARI ALBERT L
IPC: A21D13/06
Filed: 1990-10-02
Abstract: MICROWAVE BREAD AND METHOD OF PREPARATION         ABSTRACT        Disclosed are fresh, baked bread products having extended shelf lives which are prepared specifically to be reheated/refreshed in a microwave oven employing a metallized film susceptor sleeve.  Upon this microwave refreshening, the reheated loaves are characterized by a soft interior crumb and a crispy crust.  The products have a shelf life of about 7-14 days.  Also disclosed are methods for preparing such baked bread products as well as full formulation dry mixes and partial formulation pre-dry mixes for their commercial scale production by both the sponge dough and straight dough methods.  The preparation methods involve first prehydrating a defined dough conditioner system and pregelatinized starch to form an emulsion, combining the emulsion with the other ingredients to form a dough and finish preparing the dough to produce a finished microwave baked bread loaf.
Patent CA-2027175-A1 (CA)
Title: Surface discharge plasma cathode electron beam generating assembly
Inventor: SCOTT SIMON J
IPC: H05H7/08
Filed: 1990-10-09
Abstract: ABSTRACT         A SURFACE DISCHARGE PLASMA CATHODE          ELECTRON BEAM GENERATING ASSEMBLY     A surface discharge plasma cathode electron beam generating assembly (1) includes an anode (2) maintainable at a substantially constant first potential, a cathode device (3) having a first electrically conductive member (4), a dielectric member (5) at least partially surrounding the first member (4) and electrically conductive means (6) located on the outer surface of the dielectric member (5) and insulated therefrom. A capacitative divider circuit (7) is provided for maintaining the first electrically conductive member (4) at a second potential different from the first potential and for maintaining the electrically conductive means (6) at a high negative third potential relative to the first and second potentials.
Patent CA-2029258-A1 (CA)
Title: Gas turbine control system having optimized ignition air flow control
Inventor: TYLER PAUL J
IPC: F02C9/40
Filed: 1990-11-02
Abstract: Abstract of the Invention Method and apparatus for controlling fuel flow in a combustion turbine, wherein a speed reference signal is given and wherein an actual speed signal is given, is shown to include a fuel flow regulator for regulating the flow of fuel  in response  to a control  signal,  a controller for generating a control signal representative of the difference between the  actual speed signal  and the speed reference signal, a first  adjustment member  for modifying the speed reference signal to account for droop prior to generation of the  control  signal,  and  a   second  adjustment means  for modifying the speed reference signal to account for speed error also prior to generating the control signal.  A load condition specifically envisioned  for use with the  present invention is the point of closure of the generator breaker.
Patent CA-2029387-A1 (CA)
Title: Semipermeable membrane made from polyether ketones
Inventor: HAUBS MICHAEL
IPC: B01D69/12
Filed: 1990-11-06
Abstract: Abstract of the Disclosure A semipermeable membrane of polyether ketones is disclosed.  It contains a polymer possessing the following recurring units:                               where X denotes     or      with R1, R2, R3 and R4  being identical to or different from one another and denoting H, alkyl, aryl, oxyaryl, NO2, CN, NR2 or halogen, and Z     being one of the groupings -O-, -S-, -CH2-, -CF2-,   ,  , -SO2- or -CO-
Patent CA-2030403-A1 (CA)
Inventor: STUBBS ROY
IPC: C09C1/68
Filed: 1990-11-21
Abstract: FN: 44976CAN6A    ABSTRACT                  ABRASIVE ELEMENTS     An abrasive element comprising a substrate having on a surface thereof particles of an abrasive material secured by a non-metallic binding medium wherein at least the surface of the element between the particles of abrasive material contains a fluorochemical selected from the group consisting of compounds comprising a fluorinated aliphatic group attached to a polar group or moiety and fluoropolymers having a molecular weight of at least 750 and comprising a non-fluorinated polymeric backbone having a plurality of pendant fluorinated aliphatic groups, said aliphatic groups comprising the higher of (a) a minimum of three C-F bonds, or (b) in which 25% of the C-H bonds have been replaced by C-F bonds such that the fluorochemical comprises at least 15% by weight of fluorine.  The fluorochemical may be applied as a layer coated over the existing layers of an abrasive element or it may be incorporated into at least the coating formulation which will form the outermost layer of the binding medium.  The abrasive elements may be in the form of sheets, blocks, discs, pads, belts etc.  The presence of the fluorochemical serves to reduce the loading of the abrading surface in use, thereby extending the working life of the abrasive element.
Patent CA-2030658-A1 (CA)
Title: Device for sealing off a cable entry hole in a switch box
Inventor: BRANDNER HANS
IPC: H02G3/22
Filed: 1990-11-22
Abstract: A DEVICE FOR SEALING OFF A CABLE    ENTRY HOLE IN A SWITCH BOX                ABSTRACT OF THE DISCLOSURE   A device for sealing off a hole in a wall of a switch box, through which hole a cable is guided into the switch box.  A pot-shaped housing can be fastened with its front opening opposing the hole in the wall of the switch box.  The housing has on its back side at least one opening for guiding therethrough the cable. The housing comprises two parts with the separating line therebetween going through the cable opening.  Each of the two housing parts contains a body of a rubber-like elastic material.
Patent CA-2030776-A1 (CA)
Title: Cyclopentane derivative
Inventor: STORER RICHARD
IPC: C07D473/18
Filed: 1990-11-23
Abstract: ABSTRACT              CYCLOPENTANE DERIVATIVE   (1'S,3'S,4'S)-2-amino-1,9-dihydro-9-(3,4-dihydroxy-3-hydroxymethyl-1-cyclopentyl)-6H-purin-6-one, sodium salt and pharmaceutical formulations thereofand processes for its preparation are described. The compound may be used in thetreatment of viral infections, particularly those caused by Herpesviridae.
Patent CA-2031483-A1 (CA)
Title: Procede de preparation d'hydroquinones substituees
Inventor: BONNEAU ISABELLE
IPC: C07C45/46
Filed: 1990-12-04
Abstract: PRECIS DE LA DIVULGATION:     La présente invention concerne un procédé de préparation d'hydroquinones monosubstituées caractérisé en ce que l'on fait réagir un phénol substitué en position ortho ou méta par rapport au groupement OH,  avec un agent d'acétylation  choisi  parmi  les  halogénures d'acétyle, l'acide acétique, l'anhydride acétique ou les esters de l'acide acétique,  dans le fluorure d'hydrogène,  afin de former l'hydroxyacétophénone R-substituée correspondante et l'on oxyde ladite hydroxyacétophénone par le peroxyde d'hydrogène en présence d'une base minérale.  Le procédé de l'invention est  plus particulièrement  intéressant pour préparer la méthylhydroquinone, en raison du faible coût de l'ortho-crésol ou du méta-crésol servant de matière première.
Patent CA-2032020-A1 (CA)
Title: Method for producing ultra clean steel
Inventor: LABATE MICHEAL D
IPC: C21C7/072
Filed: 1990-12-12
Abstract: A process of treating molten steel to remove insoluble nonmetallic inclusions to produce clean and ultra clean steel comprising the steps of pouring molten steel into an insulated tundish having an insulated cover, maintaining a neutral atmosphere in said covered insulated tundish, stirring the molten steel with inert gas within said covered insulated tundish so as to precipitate said insoluble nonmetallic inclusions and move the same to the surface of the molten steel, maintaining and increasing molten steel temperature in said covered insulated tundish, directing the insoluble nonmetallic inclusions from the tundish, pouring clean and ultra clean steel from the covered insulated tundish.
Patent CA-2032451-A1 (CA)
Inventor: THORNE REXFORD M
IPC: B60D1/07
Filed: 1990-12-17
Abstract: ABSTRACT OF THE DISCLOSURE    A trailer hitch adapter is provided for connection either to a trailer hitch ball or to a trailer hitch tongue.  The adapter includes a tubular member that defines a housing and a connecting member carried within the housing between a pair of resilient elements to absorb axial shocks and rotational loads imparted by one of the towed vehicle or the towing vehicle to the other vehicle.   The adapter is removably connected with a portion of the trailer hitch by means of a pair of retaining pins, to permit its removal and transfer from  one  vehicle  to  another,  and  also  to  prevent  an unauthorized connection of a towed vehicle to a trailer.
Patent CA-2033764-A1 (CA)
Title: Submersible marine dock system and method
Inventor: MELDRUM CHARLES R
IPC: E02B3/06
Filed: 1991-01-08
Abstract: A submersible dock system with mooring pilings which folds down for storage underwater. The dock system includes a deck or mainspan normally above water, a submerged horizontal frame and, if necessary, leveling means, and a plurality of vertical support structures extending between the submerged frame and dock. The submerged frame, vertical structures and mainspan of the deck are all preferably constructed of rectangular tubing members which are pivotally joined in key places to enable the deck to be pivoted from an upright position to a substantially supine position underwater. The dock system also includes a plurality of telescoping members to hold the deck in an upright position. The height of the dock walkway is also easily adjusted to accommodate changes in water levels. Storage of the deck and vertical structures under water is achieved by pulling pins or other fasteners out of the telescoping diagonal connecting members so that they are free to collapse by shortening or lengthening, thereby allowing the vertical members to pivot about hinged points of the deck and submerged frame. The galvanized steel tubular members are made more corrosion resistant by use of sacrificial anodes and regular perforations in the tubular members.
Patent CA-2037202-A1 (CA)
Title: Universal excavator with auxiliary tool supply means and bucket scraper
Inventor: ZHONG PEI-QIAN
IPC: E02F3/96
Filed: 1991-02-27
Abstract: A mini-size universal hydraulic excavator which  is  capable  of  performing  independently many operating  processes,   such  as  digging,   pushing, grabbing,    drilling    and    chipping,    comprises essentially  three main  sections,  namely  a  chassis carrying traveling devices  and pivotally connected with an earth-moving means, a complete swivel upper carriage   provided  with  a  power  generator  and  a driver's  seat,  and an excavating arm comprising a boom,  a bucket arm,  a bucket,  etc.   The hydraulic chipper can be used by being connected to the main machine  without  the  necessity  of  removal  of  the bucket and the earth-moving means,  so that chipping and site clearing can be carried on simultaneously solely  by  one  single  machine.    A  backhoe  bucket carrying  a  scraper  employs  a  multi-bar  linkage mechanism comprised of a bucket body,  a scraper,  a bucket  arm,  etc.,  so  that  the  bucket  can  have sufficient bucket capacity in a relatively greater excavating revolving angle range.   The specially-set accessory operating equipment oil lines are used to drive all the hydraulic operation equipment except the bucket.