baber/WOPTO huggingface dataset:
Patent CA-2055203-A1 (CA)
Inventor: LUNDOVIST JOERGEN
IPC: C09D7/65
Filed: 1991-11-08
Abstract: A method for producing expandable thermoplastic microsheres by polymerisation in a reaction vessel of an ethylenically unsaturated monomer or a mixture of monomers in an aqueous suspension in the presence of a condensed propellant. In the method, the monomer or monomer mixture is suspended in the aqueous medium in the presence of a powder stabiliser which consists of a salt or hydroxide of any of the metals Ca, Mg, Ba, Fe, Zn, Ni or Mn. The powder stabiliser is insoluble in the aqueous medium at the pH the aqueous medium has at the polymerisation. The aqueous medium may also contain a co-stabiliser. The method further comprises the step of washing off the powder stabiliser from the microspheres after the polymerisation by lowering the pH of the aqueous medium by the addition of acid.      Alternatively, amphoteric hydroxides can also be dissolved by a pH increase. The invention also relates to microspheres produced according to the method of the invention, and to the use thereof.
Patent CA-2059487-A1 (CA)
Title: Polyamine phenols as radioprotective agents
Inventor: EDWARDS MICHAEL L
IPC: C07C215/46
Filed: 1992-01-16
Abstract: ABSTRACT The present invention relates to certain polyamine phenols of the formula (1) or (2): (1) (2) wherein R1 and R2 are each independently a C1-C6 alkyl group, n is an integer from 0 to 3, Z is a C2-C6 alkylene group, and m is an integer from 4 to 9, which are useful as radioprotective agents.
Patent CA-2060476-A1 (CA)
Title: Biocidal and agrochemical suspensions
Inventor: NEWTON JILL E
IPC: A01N47/48
Filed: 1992-01-31
Abstract: A biocidal or agrochemical composition comprising particles or droplets of a substantially water-insoluble or sparingly-soluble biocidally-or agrochemically-active substance cosuspended, by an aqueous structured surfactant, with an aliphatic hydrocarbon or glyceride oil, wherein the weight ratio of said surfactant to said active substance is less than 20:1.
Patent CA-2066316-A1 (CA)
Inventor: DEVIC MICHEL
IPC: D21C9/10
Filed: 1992-04-16
Abstract: Manufacture of high-yield paper pulp from wood chips. The process consists in successively treating the chips, before grinding, with a solution containing at least one reducing agent, and then with an alkaline hydrogen peroxide solution. Application to the manufacture of paper pulp with a high degree of whiteness and good mechanical characteristics.
Patent CA-2067067-A1 (CA)
Title: Metallurgical fluxes
Inventor: PHILLIPS ROY J
IPC: C21C7/00
Filed: 1992-04-24
Abstract: ABSTRACT                      METALLURGICAL FLUXES           A  metallurgical  flux  is  provided  as  bonded particulates in granular or briquette form, which contains fluxing ingredients, binder and an expanding agent whereby action of heat in contact with molten metal causes expansion of the expanding agent to break down the bonded particulates into particulate form.
Patent CA-2067716-A1 (CA)
Title: Web press monitoring system
Inventor: LUPPY RICHARD A
IPC: G07C3/00
Filed: 1992-04-30
Abstract: A computerized monitoring system is used for monitoring the operation of web presses. The computerized monitoring system includes a recorder for automatically recording log entries for each of the respective web presses. The log entries specify the occurrence of particular events and also specify the time at which such events occurred. The computerized monitoring system additionally includes a processor that generates a daily press record for at least one of the web presses. The daily press record summarizes activity of a press for a time frame including the waste, gross and net production. Lastly, the computerized monitoring system is provided with a user interface such as a video display or press for displaying the daily press record. The computerized monitoring system has the capability of operating in real time.
Patent CA-2071803-A1 (CA)
Title: 4a-substituted avermectin derivatives
Inventor: CHU LIN
IPC: A61K31/70
Filed: 1992-06-19
Abstract: TITLE OF THE INVENTION 4a-SUBSITUTED AVERMECTIN DERIVATIVES            ABSTRACT OF THE DISCLOSURE         Avermectin compounds are substituted at the 4a-position:  the 4a-methyl group is first derivatized with a hydroxy group which is then substituted with a variety of alkyl, alkoxy alkyl, or polyalkoxy alkyl groups and derivatives thereof.  The compounds are potent antiparasitic and anthelmintic agents and compositions for such uses are also disclosed.
Patent CA-2073156-A1 (CA)
Title: Photosensitive elastomer polymer compositions for flexographic printing plates
Inventor: BERRIER ARTHUR L
IPC: C08F285/00
Filed: 1992-07-06
Abstract: Abstract of the Disclosure Flexographic photosensitive printing plates are made with formulations comprising triblock polymers of poly(vinylpyridine)-poly(butadiene) or poly(isoprene)-poly(vinylpyridine).  The polymers may be quaternized. When made with quaternized polymers, the plates after imaging with UV may be developed in aqueous solutions.
Patent CA-2073201-A1 (CA)
Title: Microwave heated digesting system for digesting materials to be analyzed
Inventor: HASWELL STEPHEN J
IPC: G01N1/44
Filed: 1992-07-06
Abstract: A continuous flow microwave heated digesting system includes a source of microwave radiation into a chamber, thin walled chemical resistant and microwave transmissive tubing with-in such chamber onto which the microwave radiation impinges to heat contents thereof, and means for passing through such thin walled tubing material to be digested in a digesting medium therefor, so that the material is digested. It has been found that for quick and effective digestions the tubing will often be of an internal diameter in the range of 0.5 to 1 mm. and will be heated for a length in the range of 5 to 50 meters, so the heating time of a sample to be digested will be at least five seconds and normally gill be less than 3 minutes, during which time such digestion will be essentially completed. Means are provided for inserting into a stream of carrier liquid, such as water, a slug, such as a 1 ml. slug, of sample in digesting liquid (acid), which is passed through the tubing (which is coiled inside a microwave chamber), and after completion of digestion is cooled and is passed directly to an atomic absorption spectrometer, where its spectrum is recorded and the analysis of the sample is reported.      The slug of sample in acid.may be added to the system via an injection valve and loop by means of syringe injection or other suitable charging means. Backpressure will be maintained on the system and filtration of any undigested solids will very prefer-ably be effected to prevent any possible blockages of the system.
Patent CA-2076218-A1 (CA)
Title: Mattress
Inventor: TEASDALE BARRY C
IPC: A61G7/057
Filed: 1992-08-14
Abstract: ABSTRACT                         MATTRESS    A mattress, which is particularly effective in preventing and relieving decubitus ulcers, comprises a plurality of inflatable sections.  Inflation means associated with the mattress inflate at least one of the inflatable sections at a first, higher pressure and simultaneously inflate at least one of the inflatable sections at a second, lower pressure.  By sequentially changing the sections to which the high and low pressures are applied, different areas of a patient's body may be pressure relieved in turn, allowing blood to flow in the parts of the patient in contact with a low pressure section while still providing support for the patient.  There may be a number of groups of sections, all the sections in each group being interconnected, and each group being sequentially inflated at the lower pressure for a preset period.
Patent CA-2076447-A1 (CA)
Title: Signmate
Inventor: SMITH STUART A
IPC: G09F15/00
Filed: 1992-08-19
Abstract: ABSTRACT          Portable Sign A sign includes a plastics backing panel 1 and a number of different display panels 2 for releasable attachment thereto.   The display panels may include a write-on, wipe-off panel and possibly a panel to which a set of character elements can be releasably attached to build up individual messages.  Different mountings such as a handle,  desk  mount  or  floor  stand  can  also  be releasably attached to the backing panel.            [Figure 1]
Patent CA-2077718-A1 (CA)
Title: Static vacuum casting of ingots
Inventor: BOROFKA JANINE C
IPC: B22D27/02
Filed: 1992-09-08
Abstract: Static Vacuum Casting of Ingots Abstract In the disclosed embodiments, vacuum casting of met-al ingots is effected by melting metal in a hearth (10), directing molten metal from the hearth through a hearth outlet (18) to one of a series of mold segments (20) po-sitioned on the periphery of a rotatable drum (19), and directing an energy beam (24) from an electron gun or plasma gun (23) toward the surface of the molten metal being poured into the mold segment (25) to control solid-ification of the ingot.  After the mold segment has been filled, the drum is indexed to position an adjacent mold segment (26) beneath the hearth outlet.  The energy beam is directed toward the surface of the completed ingot in the adjacent segment (26) as well as toward the mold seg-ment (25) being filled to form a smooth surface on the solidified ingot.  (Fig. 1)
Patent CA-2079257-A1 (CA)
Title: Metathesis catalyst system
Inventor: SUGAHARA TOMOO
IPC: B01J31/14
Filed: 1992-09-28
Abstract: ABSTRACT OF THE INVENTION   A halogenated aluminum-based cocatalyst provides a metathesis catalyst system with high activity, moisture insensitivity, and long pot lives. The cocatalyst can be employed in solution or in in-mold bulk polymerization processes.     TTD.9274.pa/mes
Patent CA-2079287-A1 (CA)
Inventor: SESHADRI NAMBIRAJAN
IPC: H03M13/35
Filed: 1992-09-28
Abstract: Information is transmitted in digital form over fading channels using DPSK coded modulation incorporating multi-level coding in order to provide unequal error protection for different classes of data such as generated by CELP or other speech encoders.
Patent CA-2079833-A1 (CA)
Title: Hand-operated chain saw with self-orienting linkage
Inventor: HINKLEY J ROSS
IPC: B23D57/02
Filed: 1992-10-05
Abstract: ABSTRACT           Hand-operated chain saws are known.   In this invention,  the chain  saw  includes  a  linkage  that  is pivotally connected to one end of the chain.  The chain and linkage are attached to two manipulating means, such as two pieces of cable, so that the chain and linkage can rotate relative to the manipulating means.  The linkage has a first generally flat face aligned with the cutting teeth of the chain, and a second inclined face aligned with the opposite side of the chain.  The inclination is transversely biassed such that when the saw is positioned on the workpiece, drawing the linkage over the workpiece flips the chain over 180° if it was first oriented with the teeth projecting away from the workpiece, but does not flip the chain if it was first already oriented with the teeth projecting toward the workpiece.
Patent CA-2081045-A1 (CA)
Inventor: UMEZAWA KAZUHIKO
IPC: H01L23/433
Filed: 1992-10-21
Abstract: An integrated circuit package having a cooling mechanism according to the present invention comprises a plurality of integrated chips disposed to make a matrix and coolers utilizing jet impingement of liquid coolant for cooling which are positioned corresponding to the integrated circuit chips on a printed circuit board using a holding plate and are pressed against the integrated circuit chips with force at a predetermined level.  A cooler comprises a cooling plate in contact with a top face of the applicable integrated circuit chip, a cylinder-shaped housing fixed to the cooling plate, a nozzle inserted to the housing to jet the liquid coolant practically to the center of the cooling plate and a draining tube to drain the liquid coolant impinged into the housing.  It further comprises a supplying manifold to distribute the liquid coolant supplied form outside to each of the coolers and a draining manifold to collect and drain the liquid coolant flowing from the rows of coolers, and connecting tubes to connect the supplying manifold and the draining manifold with the coolers and to connect adjacent coolers.
Patent CA-2082698-A1 (CA)
Title: Method of refurbishing used lockers
Inventor: MCDONALD H BRUCE
IPC: A47B61/00
Filed: 1992-11-12
Abstract: ABSTRACT OF THE DISCLOSURE         A method of refacing a locker without having to move the locker comprises securing new frame mounting members directly to the old front face, telescoping a new front frame outwardly over the frame mounting members and securing the new frame at its outside edges to the frame mounting members.  The new frame covers both the old front face of the locker as well as the frame mounting members and is held in position without any fasteners shown on the front face of the locker.
Patent CA-2084261-A1 (CA)
Inventor: RYNTVEIT GUNNE
IPC: B01J8/06
Filed: 1992-12-01
Abstract: The present invention relates to a method for filling particulate material into vertical tubes. The particles are conveyed down into the tube along a line with a series of damper means arranged substantially transversely to the line and having a radial extension less than the tube's inner diameter. The line is pulled up gradually as the tube is filled with particles. The damper means can be in the form of brushes so flexible that they give gradually when the particles fall down on them. A wire can be used as the line, to which is fastened a series of substantially equidistant transversely extending brushes, preferably consisting of springs.
Patent CA-2085730-A1 (CA)
Title: Composites
Inventor: COCHRAN WILLIAM H
IPC: B32B7/00
Filed: 1991-06-19
Abstract: A flexible composite comprising a high tensile strength fibrous component dispersed within a flexible or resilient polymer-ic matrix, the matrix and fibrous component being essentially unbonded to each other so that the composite retains essentially the flexibility of the polymeric matrix.
Patent CA-2085874-A1 (CA)
Title: Self-righting inflatable life-raft
Inventor: WRIGHT DEREK
IPC: B63C9/04
Filed: 1991-06-17
Abstract: A self-righting inflatable life raft (10) including a raft body having inflatable sidewalls (12, 14, 16, 18) and an inflatable member extending from the raft body having a buoyant portion sufficient to provide lifting force to move the raft's center of gravity beyond its point of rotation on the surface of water such that the raft will topple by gravity to an upright position. The inflatable member may include a plurality of inflatable tube portions (22, 24, 26, 28) which extend from an upper edge of the raft sidewalls to a first predetermined position upwardly and outboard from the upper edge and which then extend inboard to centrally converge with one another at a second predetermined position above the raft body.
Patent CA-2086284-A1 (CA)
Title: Luggage with improved wheel configuration
Inventor: KING WILLIAM L
IPC: A45C5/14
Filed: 1992-12-24
Abstract: LUGGAGE WITH IMPROVED WHEEL CONFIGURATION                Abstract of the Disclosure A pair of front wheels of a wheeled luggage case is attached closer to the front end of the elongated bottom structure of the case than a pair of rear wheels is attached to the rear end of the elongated bottom structure.  The forward position of the rear pair of wheels reduces the turning radius of the case and makes it more maneuverable in crowded or confined areas.  The front pair of wheels supports less weight and is less susceptible to bogging down on soft surfaces such as carpeting.  The forward position of the rear pair of wheels, and the reduced distance between the front and rear pairs of wheels, allows the soft sided luggage case to withstand greater loads before the bottom structure sags to such an extent that the case bottoms out on a support surface.     195106.03
Patent CA-2087443-A1 (CA)
Title: Confocal scanning optical microscope
Inventor: AMOS WILLIAM B
IPC: G02B21/00
Filed: 1991-07-16
Abstract: A confocal scanning optical microscope in which a specimen under test is simultaneously scanned with two distinct spots or slits of illumination (S1, S2), and two output beams emitted from the specimen due to reflection or fluorescence are descanned and passed to separate stationary confocal apertures (A1, A2) and detectors (D1, D2).
Patent CA-2087834-A1 (CA)
Title: Apparatus and method for forming an adhesively bonded seam between resiliently compressible fabric sheets
Inventor: MELTZER MARK J
IPC: B29C65/08
Filed: 1991-07-22
Abstract: An apparatus (21) for forming a butt seam between opposed edges of resiliently compressible fabric sheets (28, 29), such as foamed neoprene for wet suits and dry suits. The apparatus (21) includes fabric manipulating assembly (23) which continuously compresses the sheets proximate and inwardly of the edges (32, 33), preferably by a roller assembly (26, 27), to form opposed shoulders or areas (43, 44) that will permit the application of a lateral force to firmly press the opposed edges (32, 33) of the flexi-ble and compressible sheets (28, 29) tightly together during movement and bonding along the seam. The apparatus (21) preferably includes adhesive activation means (24) in the form of an ultrasonic transducer (91) which contacts the neoprene pieces in adv-ance of compression rollers (26, 27) to activate a dry neoprene cement carried on the edges of the fabric pieces. A method for forming the butt seam is described, as are alternatively adhesive activating assemblies and a seamed neoprene fabric sheet.
Patent CA-2088617-A1 (CA)
Title: Incremental skate weights
Inventor: COREY SHELDON L
IPC: A63B21/065
Filed: 1993-02-02
Abstract: ABSTRACT OF THE DISCLOSURE          A new and useful improvement in skater training devices. It is a device comprising a flexible, durable case, which incorporates a plurality of resealable pockets. Each resealable pocket houses individual, removable dense metal bodies (the preferable metal being lead). These dense metal bodies are shaped to the contours of the skate boot instep and it's adjacent sides; thereby, creating a flush fit to the skate. Because each dense metal body is individually removable, the skater is able to vary the weight or resistance of the device incrementally. This also allows the skater to realize optimal physical workloads during each stage of an exercise session, (the warm-up, actual exercise, and cool-down). The case, which houses individually removable, dense metal bodies, in resealable pockets; wraps around the instep and arch of the skate boot. It is preferable that one end of the case have a ring attached; the other end acting as a tongue, passes through the ring, securing the case and it's contents around the the skate boot for a secure hold.
Patent CA-2088722-A1 (CA)
Inventor: FOSTER RAYMOND K
IPC: B65G25/06
Filed: 1993-02-03
Abstract: The piston rods (10,  12,  14) of three linear hydraulic motors (M1, M2, M3) are stationary and include fluid pressure passageways  (40,  52,  42,  54,  44,  56)  which direct  fluid pressure into and out from working chambers (16, 34, 18, 36, 20,  38)  on opposite sides of piston heads  (22,  24,  26). Movable cylinder barrels (16, 18, 20) are connected to a load, e.g. floor members (FM1, FM2, FM3) of a reciprocating floor conveyor (Fig. 18).  The outer ends of the piston rods (10, 12, 14) include balls and the balls include ports (46, 58, 48, 60, 50, 62) through which fluid pressure is delivered or removed. Associated with each port is a limit valve LV1, LV2, LV3, LV4, LV5, LV5.  Limit valves (LV1, LV2, LV3) are pushed into an open position by a retraction of the motors (M1, M2, M3).  Limit valves (LV4, LV5, LV6) are pulled into an open position by extension of motors (M1, M2, M3).  The limit valves (LV1, LV2, LV3, LV4, LV5, LV6) include springs biasing them into closed positions.   The push and pull  forces are in a direction opposite this spring force.  Limit valves (LV1, LV2, LV3, LV4, LV5, LV6) are also opened by line pressure when flow is in a direction opposing the spring force.  The system includes a two position switching valve (SV) controlled by a two position pilot valve (PV).  The system operates to move the motors (M1, M2, M3) in unison, in a first direction, and to retract them sequentially.  The system is reversible.
Patent CA-2089334-A1 (CA)
Title: Directed fiber, directed energy structural preform process and apparatus
Inventor: BUCKLEY DANIEL T
IPC: B29C70/38
Filed: 1993-02-11
Abstract: METHOD AND APPARATUS FOR MAKING PREFORMS ABSTRACT      A directed fiber, directed energy process provides both a method and an apparatus for making structural preforms. Fibrous reinforcement material is chopped into short lengths of fiber and propelled toward a perforate mold part.  During propulsion and/or deposition on the perorate mold part the fibers are sprayed with an electromagnetic radiation-curable binder.  The binder-carrying fibers are held on the perforate mold part by a  flow of air  in that the perforate mold part  is rotatably mounted in a plenum which provides an air flow therethrough.  Rotation of the perforate mold part and scanning action of the  fiber and binder propelling mechanisms effects even and complete coverage of the perforate mold part.  After a mat of the chopped fibers has been applied to the perforate mold part, a conforming second mold part closes the mold and presses the fibers to replicate the shape of the three dimensional rigid preform.  While in the mole which may be advantageously constructed of an electromagnetic radiation transmissive material,   the  pressed  fibers  are  subjected  to electromagnetic radiation to cure the binder and bond the fibers of the mat into a rigid three-dimensional element. A subassembly, such as an auxiliary member or members, may be attached by applying an electromagnetic energy-curable binder to a selected area of the preform and/or the subassembly, placing the auxiliary member into a desired orientation and into intimate contact with the preform at the selected binder-coated area,  and the binder at that area cured by the application of the electromagnetic energy.  The electromagnetic energy may be, for example, microwave radiation and/or ultraviolet radiation.
Patent CA-2089621-A1 (CA)
Inventor: FALK RUDOLF E
IPC: A61K9/00
Filed: 1993-02-16
Abstract: ABSTRACT           Pharmaceutical compositions from which effective non-toxic (to the patient) dosage amounts may be taken and applied to the skin and/or exposed tissue of a human, each effective dosage amount comprising pharmaceutical excipients suitable for topical application, an effective non-toxic dosage amount of a drug to treat  and to assist  to  resolve  a  disease  and/or condition of the skin and/or exposed tissue of a human and an effective non-toxic dosage amount of hyaluronic acid and/or salts  thereof  and/or homologues,  analogues,  derivatives, complexes,  esters,  fragments,  and/or sub-units of hyaluronic acid  sufficient  to  transport  (to facilitate  or  cause  the transport  of)  the  drug,  to  a  site  in the  skin  including epidermis or exposed tissue of a disease or condition for percutaneous transport into the skin and/or exposed tissue to accumulate and remain there for a prolonged period of time and which is systemic independent acting.