baber/WOPTO huggingface dataset:
Patent CA-2051794-A1 (CA)
Title: Polymeric ammonium compounds as charge control agents
Inventor: GITZEL JORG
IPC: G03G9/113
Filed: 1991-09-18
Abstract: Polymeric ammonium compounds as charge control agents Use of polymeric ammonium salts which have a molecular weight of about 5000 to about 500,000, and are obtained by homopolymerization of monomers, such as, for example, diallyldialkylammonium chloride, or by copolymerization of mixtures  of  two monomers, such as,  for  example, diethyldimethylammonium chloride and diallylmethyloctyl-ammonium chloride, with molar monomer ratios of about 0.5:0.5 to about 0.95:0.05  in the copolymer,  and if appropriate subsequent anion exchange, individually or in combination as charge control agents in electrophoto-graphic toners and developers which are employed for copying  or  duplicating  masters  and  for  printing electronically, magnetically or optically stored informa-tion or in colorproofing, and as charge control agents in powders and powder coatings.
Patent CA-2053272-A1 (CA)
Title: Device for administering an active agent to the skin or mucosa
Inventor: CHANG YUNIK
IPC: A61F13/02
Filed: 1990-03-21
Abstract: A transdermal drug delivery device comprising a drug formulation-containing reservoir defined by a backing layer and a drug-permeable membrane layer, a peelable inner liner that underlies the reservoir and a portion of the backing/membrane outwardly of the reservoir periphery, an adhesive layer that underlies the inner liner and outwardly extending portions of the membrane/backing layers, and a peelable release liner layer that underlies the adhesive layer with a first permanent heat seal between the backing and the membrane about the perimeter of the reservoir and another concentric peelable (impermanent) heat seal between the membrane and the inner liner positioned underlying and at a radius not less than the first permanent heat seal, the heat seals and peelable barrier layer providing barriers that isolate the drug formulation from the adhesive.
Patent CA-2053653-A1 (CA)
Title: Digital distribution frame module
Inventor: BURROUGHS DENNIS M
IPC: H04Q1/14
Filed: 1991-10-17
Abstract: DIGITAL DISTRIBUTION FRAME MODULE     ABSTRACT OF THE DISCLOSURE         A modular jack assembly includes Bantam Jack-type spring assemblies carried in a housing.  Coax cables connect the spring assemblies to coax connectors carried on the module.
Patent CA-2053896-A1 (CA)
Inventor: SASSIER GERARD
IPC: B01D46/02
Filed: 1991-02-26
Abstract: PCT No. PCT/FR91/00157 Sec. 371 Date Oct. 25, 1991 Sec. 102(e) Date Oct. 25, 1991 PCT Filed Feb. 26, 1991 PCT Pub. No. WO91/12762 PCT Pub. Date Sep. 5, 1991.A vacuum cleaning device comprising an enclosure (20) containing a chamber (30) in which is located at least one flexible wall such as a bag (2) designed to stop solid particles while letting through the air, and containing a compartment (40) provided with a movable tray (41) located beneath the chamber (30) in order to catch the solid particles which fall by the force of gravity. The device is characterized in that it includes a means (5) for forming a sealed connection between the flexible wall (2) and the tray (41), the latter comprising at least one inlet (48-49) for air to be filtered. In a preferred embodiment, the flexible wall (2) is secured by frame (3) the edge of which acrries a flexible seal (5) so that the assembly (1) thereby formed is self-contained and interchangeable without needing to be dismantled.
Patent CA-2053959-A1 (CA)
Inventor: HUANG YUNG-HSIANG
IPC: C09J7/02
Filed: 1991-10-22
Abstract: ABSTRACT An article includes a distinctive refastenable adhesive taping system.  The article comprises an outer cover which has waistband sections positioned at opposite ends thereof and has an intermediate section which interconnects the waistband sections.  The outer cover includes a securing zone which is located at a first of the waistband sections and which provides a landing surface appointed for receiving adhesion of one or more adhesive tabs thereon.  The securing zone has a selected peak tensile strength and a selected rigidity value.  An adhesive tab is located at at least one lateral side edge of a second of the waistband sections for securing the waistband sections around a wearer.  The tab includes a backing layer and an adhesive layer, and, when adhered to the landing surface, has a 180° peel adhesion value which is less than the peak strength of the securing zone.  The backing layer has a rigidity value selected to provide a rigidity ratio of not more than about 10:1, where the rigidity ratio is determined by dividing the backing layer rigidity value by the securing zone rigidity value.  The securing zone and adhesive tab thereby provide an improved refastenable taping system.
Patent CA-2055684-A1 (CA)
Title: Variable thrust caulk dispensing device
Inventor: CHANG PETER J Y
IPC: B05C17/005
Filed: 1991-11-15
Abstract: An improved single and double cylinder hand-operated caulking gun having a direct plunger drive mechanism including a bearing assembly for increasing trigger leverage to allow delivery of a dense composition at a high volume and flow rate.      The caulking gun of the present invention includes an adjustable trigger stop for minimizing hand fatigue during prolonged use, quick-release pistons, and a dual-cartridge restraining screw.
Patent CA-2055710-A1 (CA)
Title: Inlet casing for steam turbine
Inventor: PUZYREWSKI ROMUALD PROF DR
IPC: F01D9/02
Filed: 1991-11-15
Abstract: Abstract In  a  single-flow  steam  turbine,  the  inlet casing is designed to comprise two intertwined spiral casings  (1,  2).  These  spirals  have  concentrically arranged annular openings (1', 2') which face the inlet to  the  blading  and  extend  over  -360°   of  the circumference.  The  spirals  can  be  shut  off  and/or throttled,   allowing   infinitely   variable   partial admission to the reaction admission (sic) (13, 14, 15). The spirals (2)  dimensioned for the smaller flow and their annular opening  (2')  is arranged on the rotor side in the radial direction. The first row of blading supplied from the annular openings (1', 2') is an after the (sic) action control wheel (13). The radially inner boundary wall of the spiral dimensioned for the small flow is arranged in the plane of the balance piston.                             Fiq.
Patent CA-2056730-A1 (CA)
Title: Irrigating, cleansing and suctioning device
Inventor: MUTO RUDOLPH
IPC: A61C17/02
Filed: 1991-11-29
Abstract: ABSTRACT OF THE DISCLOSURE A cleansing device having a head with an irrigation outlet and a plurality of suction ports.  Fluid is forced out beyond the cleansing head through the irrigation outlet and returns in a vortex through the suction ports.  A pliable outer surface can surround the head to facilitate massaging gums and brushing teeth.  The cleansing head is supported on an elongated hollow body having a handle body with a vent hole for controlling the administration of suction.  The cleansing head is at the end of a bent arm which holds the cleansing head at an obtuse angle relative to the handle.
Patent CA-2056805-A1 (CA)
Title: Improved spray nozzles
Inventor: WALDRUM JOHN E
IPC: B64D1/18
Filed: 1991-12-02
Abstract: An improved spray nozzle for use with aircraft includes a small diameter, plastic body having a forward liquid inlet and a transverse cavity receiving liquid chemicals under pressure through the inlet. A plurality of capillary tubes in fluid communication with the cavity are secured in the body to open rearwardly in a horizontal, planar fan-shaped configuration protruding from a rear wedge shaped end of the body. The transverse distance across the body and the capillary tubes is less than one and one-half inches to minimize gravity pressure differentials across the plurality of tubes when the aircraft is banked to thereby prevent liquid chemical dribbling. A removable baffle is secured within the transverse cavity in position to be impinged by the entering liquid chemicals to equalize liquid flow and pressure throughout the cavity to thereby provide equal flow through each of the capillary tubes.
Patent CA-2057665-A1 (CA)
Title: Mechanism supporting a thigh-rest cushion
Inventor: LEBRUN JEAN
IPC: B60N2/06
Filed: 1991-12-13
Abstract: A B S T R A C T          A lower frame member is connected to a sitting portion of the seat and has wings including windows for guiding pins rigidly connected to a chassis. The chassis is placed above the frame member and carries a thigh-rest cushion. An adjusting element is provided for displacement of said chassis from front to rear and from  rear to front.
Patent CA-2058262-A1 (CA)
Title: Process for extracting or disposing of ammonia or ammonia compounds from dust mixtures
Inventor: MARTIN WALTER J
IPC: C01C1/02
Filed: 1991-12-20
Abstract: In order to recover or dispose of ammonia or ammonia compounds from mixtures of dust that occur during combustion processes, during subsequent gas cooling, or during subsequent gas scrubbing, the dust that is created is mixed in batches with water in a closed system at a temperature that is lower or equal to the temperature at which the dust leaves the combustion, cooling or scrubbing process, and the resulting vapours are drawn off in a vacuum.
Patent CA-2060213-A1 (CA)
Title: Retractable coater assembly including a coating blanket cylinder
Inventor: KOEHLER JAMIE E
IPC: B41M7/02
Filed: 1990-06-13
Abstract: Sometimes it is desired to retrofit an existing press with a coating unit. The invention makes possible an addition to a multi-color lithographic offset printing press comprising a self-contained coating unit moveable into and out of operative relationship with an impression cylinder (66) on the press unit (e.g. the impression cylinder (66) of the last press unit) without interrupting or disrupting printing taking place in this last stage. The coating unit includes a special blanket cylinder (40), a transfer roller (10) and doctor or metering means (26) to control the amount of coating material on the transfer roller (10). Inclined tracks (48) are provided to guide the coating unit into and out of operative relationship with the impression roller (66) of the last printing stage.
Patent CA-2061826-A1 (CA)
Title: Composition for the enzymatic dyeing of keratinic fibres, especially hair, and use thereof in a dyeing process
Inventor: ROURE MYRIAM
IPC: A61K8/41
Filed: 1992-02-25
Abstract: Composition for dyeing, which does not result in lightening of keratinous fibres, and in particular of hair, comprising in particular an enzyme capable of catalysing the formation of dyeing polymers and also comprising dye precursors such as bases and couplers, in a buffered solution, characterised in that the pH of the said composition is approximately neutral and the said enzyme has an optimum activity within a pH range between 6.5 and 8 and does not require the presence of hydrogen peroxide for its activity. The enzyme is advantageously a laccase, in particular the laccase from Rhizoctonia praticola or Rhus vernicifera.
Patent CA-2062946-A1 (CA)
Inventor: BIRKINSHAW KEITH
IPC: G01T1/24
Filed: 1990-06-29
Abstract: The invention is a sensor for electrical charge fabricated as an integrated circuit and comprising an electrode (1) for receiving charge, a potential-sensitive switching means (2) for generating a pulse whenever the charge received on the electrode (1) is sufficiently great, a counting means (4) for counting the number of times the switching means operates, and a means (3) for restoring the potential on the electrode (1) to its initial potential each time the switching means (3) operates and/or continuously towards its initial potential An integrated circuit comprising an array of such sensors and digital logic for controlling their operation  is disclosed. The array may be used as a multiple-channel detector for charged particles, particularly as a detector for electrons emerging from a channel plate electron multiplier. Dispersive particle and photon spectrometers, especially mass spectrometers, using such a detector are also disclosed.
Patent CA-2063449-A1 (CA)
Title: Coating composition comprising hydroxy- and anhydride-functional components
Inventor: MARRION ALASTAIR R
IPC: C08F8/30
Filed: 1990-07-12
Abstract: A curable coating composition comprises a hydroxy-functional component (A) having at least two hydroxy groups per molecule and an anhydride-functional component (B) having at least two carboxylic acid anhydride groups per molecule. At least one of the components (A) and (B) is a film-forming polymer. The coating composition contains amidine groups for accelerating the curing reaction between the hydroxy groups of component (A) and the anhydride groups of component (B). The amidine groups are present in the molecule of either of the components (A) or (B) and/or are present in the form of a separate compound containing-an amidine group. The component or compound containing an amidine group generally has formula (I) in which R1 represents hydrogen, or an organic group attached through a carbon atom, or an amine group which can be substituted, or a hydroxy group or etherified hydroxy group; R2 and R3 each independently represent hydrogen or an organic group attached through a carbon atom or are joined to one another to form (with the linking -N= C-N-) a heterocyclic ring; and R4 repres-ents hydrogen, an organic group attached through a carbon atom, or a hydroxyl group which can be etherified. Preferably, R2 and R3 are joined to form an imidazoline, imidazole, tetrahydropyrimidine, dihydropyrimidine or pyrimidine ring.
Patent CA-2064279-A1 (CA)
Title: Seismic data method and apparatus
Inventor: ALDRIDGE BRYAN W
IPC: G01V1/40
Filed: 1992-03-27
Abstract: TITLE:          SEISMIC DATA METHOD AND APPARATUS           ABSTRACT OF THE DISCLOSURE Method  and  apparatus  are  disclosed  which  incorporate  a geophone at the lower end of a drill string immediate the drill bit for detecting seismic signals generated at the earth's surface for determining formation characteristics,  structural conformation, well parameters, and the location of the drill bit relative to known surface locations.  In an embodiment, the geophone device is provided within a mud motor housing carried on the drill string for reciprocation of the drill bit.   In a preferred embodiment, a procedure  incorporates  the  invention  in  a  horizontal  well application.  Additional geophones may be provided on the surface for detecting reverberation of sonic waves generated at the earth's surface.            .
Patent CA-2065622-A1 (CA)
Title: Portable hydraulic brick crusher
Inventor: WILSON DWAYNE A
IPC: B02C1/04
Filed: 1992-04-08
Abstract: ABSTRACT     Our invention relates to a " PORTABLE HYDRAULIC          BRICK CRUSHER ". The invention is a hydraulically operable tool for the crushing of bricks. A particular application and use of our invention is for a practical and simple method of RECYCLING USED BRICKS by crushing the bricks for commercial landscaping and ornamental use at actual job and construction sites.        In operation the brick is fed into a Crushing Chamber which resembles a square hollow cylinder, at the bottom of the cylinder is a grated base plate where the brick sits on to be crushed. An inner square hollow cylinder inside the crushing chamber which we call the Sliding Ram Box is equipped with a base plate welded at the bobton part.The base plate is equipped with protruding tapered steel pins resembling a jaws teeth  which acts as the hammer to crush the bricks.          The Sliding Ram Box which freely embraces the Crushing Chamber on a sliding upward and downward motion powered by hydraulics  to crush the bricks into the required size.        A gas engine is used to power the hydraulic pump which in turn runs the hydraulic system.        The device is then mounted to a Portable Stand equipped with wheels and as the name implies is capable and agile enough to be transported and carried from place to place as the job requires.
Patent CA-2065861-A1 (CA)
Title: Process for the manufacture of budesonide
Inventor: HOFSTRAAT ROBERT G
IPC: C07J71/00
Filed: 1990-09-27
Abstract: The present invention relates to a novel process for the manufacture of (22 R,S)-16.alpha., 17.alpha.-butylidenedioxy-11.beta., 21-dihy-droxypregna-1,4-diene-3,20-dione (I) by reacting 11.beta., 16.alpha., 17.alpha., 21-tetrahydroxypregna-1,4-diene-3,20-dione (II) with butanal, CH3CH2CH2CHO in acetonitrile with p-tolyuenesulphonic acid as a catalyst.
Patent CA-2068078-A1 (CA)
Inventor: GARNER JOHN N
IPC: B29C47/02
Filed: 1992-05-06
Abstract: Abstract of the Disclosure Dual extrusion apparatus with a horizontal extruder and a vertical extruder head and in which the weight of the vertical extruder is carried by a frame.  The material vertical extruder is permitted to expand upwardly under temperature variations so as to minimize stress. Also, the extruder head and the vertical extruder are movable together horizontally to comply with temperature induced expansion and contraction.
Patent CA-2068971-A1 (CA)
Title: Telephone circuit assembly with hook-off detector circuit
Inventor: SILIGONI MARCO
IPC: H04M3/02
Filed: 1992-05-19
Abstract: A circuit assembly is disclosed which comprises: an interface circuit (3') between the subscriber line (L) and exchange devices of the kind with two amplifiers connected in a bridge configuration (9A,9B) between the battery (UB) terminals and having a means (15) of detecting the output currents (IA,IB); a supply circuit (5') which includes the exchange battery (UB) and a ring generator (AC'); a switch-over means (7) for putting the line (L) through the interface circuit (3') or the supply circuit (5'); two bridge resistors (RP,RP') which are in series with the line (L) when the latter is connected to the supply circuit (5') and of which one (RP') is connected permanently between one (A) of the line terminals and the output (3A) of one (9A) of the amplifiers, which output is substantially at the potential of one of the battery (UB) poles; an additional resistor (RA), having a much higher resistive value than that of the bridge resistors (RP,RP') and being connected between the other (B) of the line (L) terminals and the output (3B) of the other (9B) of the amplifiers; and a processing means within the interface circuit (3'), which includes said detecting means (15) and is effective to isolate the useful signal (IT) from the line current, recognize a possible hook-off state, and send corresponding signal (OH) to the exchange devices.
Patent CA-2070818-A1 (CA)
Title: Parallel processing network that corrects for light scattering in image scanners
Inventor: JANSSON PETER A
IPC: H04N5/217
Filed: 1990-12-04
Abstract: A signal representative of the total incident flux on each area element (12-i) of a target plane (12) is generated. Each area element corresponds to a portion of the object (10) from which the flux emanates. Each total incident flux signal is corrected to eliminate therefrom the effects of flux incident on the corresponding area element due to scattering (24S1, 24S2, 28S1, 28S2), thereby to generate a signal representative of the flux incident on that area element emanating only from the portion of the object corresponding to that area element. The total incident flux signal is corrected by weighting (m) each total incident flux signal in accordance with a predetermined weighting factor W(x, y), and summing the weighted signal representative of the total flux incident on an area element with a weighted total incident flux signal from each of the other area elements.
Patent CA-2071123-A1 (CA)
Inventor: AGRAWAL RAKESH
IPC: F25J3/06
Filed: 1992-06-12
Abstract: A process and system for controlling a cryogenic air separation unit during rapid changes in production.  During operation of an air separation unit, demands for oxygen will vary and the pressure of the feed air will fluctuate.  The changes in oxygen demand and feed air pressure translate into a ramping, either up or down, of the distillation system pressure in the air separation unit.  Because the product streams have tight purity requirements, the ramping system pressure (which could adversely affect product purity) is compensated for.  This compensation is by way of a net transfer of refrigeration, in the form of liquid nitrogen, into and out of the distillation system.  This transfer of refrigeration is implemented using a storage vessel of liquid nitrogen connected to the reflux path of the distillation system.  Liquid nitrogen via the reflux path is removed and stored or added to the distillation system to decrease or increase the refrigeration, respectively.
Patent CA-2071680-A1 (CA)
Inventor: KLASSEN WALTER D
IPC: F24F13/068
Filed: 1992-06-19
Abstract: The present invention provides a device to produce a high capacity, low velocity, non-aspirating, semi-cylindrical air pattern, to be mounted in a ceiling. The device has a box-shaped backpan connected to a ceiling air duct and a flow directing assembly attached to the backpan and hanging below the ceiling.  The flow directing component has a perforated face panel made up of flat surfaces in horizontal and angular planes, forming a substantially semi-cylindrical shape.  Inside the face panel are four vanes that span its length, for controlling the direction of air flow.  The flow directing assembly can swing away from the ceiling by a hinge along one side, or can be removed entirely using quick release means.
Patent CA-2074086-A1 (CA)
Title: Bilaminate polymer coated metal strip and method for manufacture thereof
Inventor: BORYS TADEUSZ
IPC: B60R13/06
Filed: 1991-02-12
Abstract: A metal substrate having a first thermosetting elastomer layer and a second thermoplastic layer, both layers being chemically bonded to the substrate, and a method of manufacture therefor. Preferably, the first layer is extruded EPDM which is bonded to the substrate by with a heat-activable polyisocyanate adhesive and the second layer is extruded PVC which is bonded to the substrate by a heat-activable modified acrylic adhesive. Flock may be chemically bonded to a portion of the EPDM. An automotive trim product is disclosed. The preferred method of manufacture is a continuous process involving the steps of applying EPDM adhesive to the substrate; heat activating the adhesive; extruding the EPDM onto the substrate; applying PVC adhesive to the substrate; heating the partially coated substrate to concomitantly activate the PVC adhesive and cure the EPDM; and then extruding the PVC onto the substrate.
Patent CA-2075522-A1 (CA)
Title: Expandable broadhead for an arrow
Inventor: MASSEY DOUG
IPC: F42B6/08
Filed: 1992-08-07
Abstract: Abstract of the Disclosure A broadhead has an elongate body with an axial cavity and a plurality of longitudinal slots are spaced radially through the wall of the body and a blade is disposed in each of the longitudinal slots.  Each of the blades is pivotally mounted at the end nearest the tip so that they may selectively pivot through the slot from a retracted position or an extended position.  Each blade has a cam edge which fits within the slot associated with the blade when the blade is pivoted into the retracted position.  A slug is adapted to slide within the longitudinal cavity of the body and engage the cams of the blades when the blades are in the retracted positions and cause the blades to project outwardly as the slug moves forward within the cavity from a starting position adjacent to the shaft end of the body.  A hook is also provided on each of the blades and a catch engages the hooks on the blades and retains them in the retracted position when the slug is positioned adjacent to the shaft end of the cavity.  In the preferred embodiment, the slug is magnetized and a second magnet polarized to attract the slug is positioned at the end of the cavity adjacent the arrow shaft.  The blades are made of a magnetic material such as steel and the body is made of a nonmetallic material such as aluminum.