baber/WOPTO huggingface dataset:
Patent CA-2093211-A1 (CA)
Inventor: MAYER ROBERT W
IPC: B22D17/30
Filed: 1991-06-21
Abstract: ABSTRACT        A pouring system uses low pressure air to force molten lead into mold cavities.  The pour spout is heated by the lead bath, and, preferably, a small gap is maintained between the pouring spout and a weir on the mold cavity to prevent stringers from being attached to the cast piece.  At the completion of the lead pouring operation, excess metal is drained back through the spout and into the lead bath.  Lead volume is controlled by adjusting pressure and timer settings, and a fill hole allows the pump to refill.
Patent CA-2095709-A1 (CA)
Title: Process for the manufacture of functionalized resins
Inventor: ARSENAULT GILLES J
IPC: C08F8/34
Filed: 1993-05-06
Abstract: A process is provided for the production of functional group containing resins wherein an alkyl-di-thiol is added to the polymerizing mixture of styrene and divinyl benzene part way through the polymerization.      On completion of the polymerization, the product is a thiol functionalized styrene-divinyl benzene resin.
Patent CA-2096733-A1 (CA)
Title: Controlled release compositions
Inventor: NEWTON JOHN M
IPC: A61K9/50
Filed: 1991-11-21
Abstract: A controlled release composition comprising an extruded core of active material and excipients, said core being coated in a water insoluble coating. Preferably the core comprises a pharmaceutically acceptable active together with microcrystalline cellulose, a clay such as kaolin and a binder such as poly(vinylpyrrolidine).
Patent CA-2098686-A1 (CA)
Inventor: WITHERSPOON ROMEO R
IPC: H01M4/56
Filed: 1993-06-17
Abstract: In a preferred method, an electrode for a lead-acid battery is prepared in a new continuous process without the conventional curing step. The general procedure for preparing electrodes includes preparing a mixture (paste) comprising an active material precursor and an inhibitor. The active material precursor includes lead oxides having at least 10% by weight lead oxide in the form of Pb3O4 (red lead), and a BET surface area of at least about 0.8 m2/gram; desirably about 1.00 to 1.50 m2/gram and preferably about 1.0 to 1.25 m2/gram. The inhibitor prevents formation of tribasic lead sulfate and tetrabasic lead sulfate from the precursor material, except at elevated temperature. The paste is applied to electrode grids and reacted at elevated temperatures for between about 5 and about 30 minutes, to form the active material of the electrode for both positive and negative electrodes. Plates are then assembled into batteries and charged. Negative electrodes differ from the positive, mainly in the additives used.
Patent CA-2099268-A1 (CA)
Inventor: BOEKE JEF D
IPC: A61K39/00
Filed: 1992-01-02
Abstract: A new type of dominant negative gene-fusion acts as an antiviral agent when expressed in infected cells. The dominant ne-gative effect is obtained by fusing a gene coding for a capsid or envelope protein of a virus to a gene coding for an enzyme (e.g.. nuclease or protease) that can destructively hydrolyze or modify the encapsulated viral DNA, RNA or proteins. The Fusion gene is expressed in virally infected cells; viruses assembled in these calls will then "self-destruct" because the fusion enzyme incorpo-rated in the viral particles destroys or functionally alters essential components of the virus, thus preventing the virus from produc-tively infecting another cell.
Patent CA-2099962-A1 (CA)
Title: Anti-theft device
Inventor: VAN LINT GREG
IPC: G08B13/14
Filed: 1993-07-06
Abstract: ANTI-THEFT DEVICE          Abstract of the Disclosure An anti-theft system for an automatic teller machine (ATM) causes a currency alarm pack to deface the currency supply in the event that an attempt is made to transport the entire ATM.  When the machine is moved, a localized field is momentarily activated and thereafter deactivated and disabled for a first predetermined interval.  A triggerable currency alarm in the money supply of the machine, includes a field detector and a motion detector.          The currency alarm is triggered when the following three conditions concur.  First, the field detector detects the localized field and thereafter ceases to detect the localized field.  Second, the motion detector detects motion of the currency alarm during a predetermined delay interval less than the first predetermined interval during which the field is disabled.  Third, the field detector does not reacquire the localized field during the predetermined delay interval.  Thus the currency alarm operates not only when an attempt is made to remove the currency supply from the machine, but also when an attempt is made to move the machine itself.
Patent CA-2102177-A1 (CA)
Title: Thermally processable blends of high modulus polyurethanes and mass polymerized abs resins
Inventor: HENTON DAVID E
IPC: C08L55/02
Filed: 1992-05-22
Abstract: The toughness of a thermoplastic, rigid polyurethane is markedly improved by incorporating a mass ABS resin such as styrene/butadiene rubber grafted with a copolymer of styrene and acrylonitrile. This toughened polyurethane is particularly useful in making structural automotive body parts and housings for electrical appliances.
Patent CA-2106496-A1 (CA)
Title: Infrared optical system
Inventor: SILLITTO HILLARY G
IPC: G02B23/12
Filed: 1992-03-18
Abstract: An I.R. optical arrangement comprising an I.R. imaging system operating at wavelengths less than 15 microns, a coherent I.R.  source of shorter wavelengths than said imaging system, a partially reflective member and an objective lens arrangement, the beams of the imaging system and the source being directed to the partially reflective means which is disposed between the objective lens arrangement and the imaging system and source so as to cause the optical paths to pass through the objective lens along substantially the same path.
Patent CA-2108537-A1 (CA)
Title: Wear rod for snowmobile ski and similar vehicles
Inventor: CAMPBELL NORMAN A
IPC: B62B17/02
Filed: 1993-10-15
Abstract: A wear rod for steering skis for snowmobiles and similar vehicles. The wear rod in cross section is comprised of a horizontally orientated component forming a base and a vertically oriented component forming a snow-engaging wear element. The base extends in a lateral direction by a greater extent than the wear element. The base fits against the lower surface of the ski with the wear element projecting downwardly. The base is preferably of sufficient length to protect the ski from excessive wear.      The wear element is preferably of sufficient length, width and height to provide the desired steering ability. The position of the wear element can be varied to achieve optimum steering stability and behaviour characteristics.      This wear rod provides the designer with a much greater range of adjustment of steering behaviour.
Patent CA-2109420-A1 (CA)
Title: Pcp receptor ligands and the use thereof
Inventor: WEBER ECKARD
IPC: A61P9/00
Filed: 1992-04-29
Abstract: 2109420 9219621 PCTABS00017 The invention relates to 5-(iminomethano)-10,11-dihydro-5H-dibenzo[a,d]cycloheptene and derivatives thereof. The invention also relates to the use of such compounds for the treatment or prevention of neuronal loss in ischemia, hypoxia, brain or spinal cord trauma, as well as for the treatment of Alzheimer's disease, amyotrophic lateral sclerosis, Huntington's disease and Down's syndrome.
Patent CA-2111204-A1 (CA)
Title: Piperidine derivatives having anxiolytic effect
Inventor: MOLTZEN EJNER K
IPC: C07D491/107
Filed: 1992-06-12
Abstract: Piperidine compounds having the general formula (I), wherein R1 is a) a group consisting of alkyl, alkenyl, cycloalkyl, cycloalkenyl, phenyl, cycloalkylalkyl, cycloalkenylalkyl, phenylalkyl or diphenylalkyl linked to the piperidyl N-atom through an at least 2-membered spacer group or; b) a group having general formula (II), wherein X is CHR10, O, S, SO, SO2 or NR10, i) Z1 and Z2 are linked together in which case: Z1 is CH2, O or S; Z2 and Z3 are independently (CH2)n, n being 0 or 1, O or S or Z1 and Z2 may together represent a group -CH = CH-; or when Z3 is (CH2)n wherein n is 0, Z1 and Z2 may together represent a 3-membered divalent group; or ii) when R1 is a group as defined in b) Z1 and Z2 may also be unlinked, in which case: Z1 is substituent, Z2 is hydrogen and Z3 is (CH2)n wherein n is 0; show potent sigma receptor activity.  Furthermore they show effect in animal models indicative of anxiolytic properties. Accordingly they are useful as medicines for the treatment of anxiety, psychosis, epilepsy, convulsion, movement disorders, motor disturbances, amnesia, cerebrovascular diseases, senile dementia of the Alzheimer type or Parkinson's disease.
Patent CA-2111744-A1 (CA)
Title: Illumination and imaging subsystems for a lens inspection system
Inventor: DAVIS THOMAS G
IPC: G01M11/00
Filed: 1993-12-17
Abstract: Illumination and imaging subsystems for a system for inspecting ophthalmic lenses. The subsystems include a lens holder, a light source, a pixel array and a processor.      In use, the light source generates light pulses that are transmitted through the lenses in the lens holder and onto the pixel array to produce thereon light patterns representing the ophthalmic lenses. The pixel array generates signals representing the intensity of light thereon, and the processor processes those signals according to a predetermined program to generate an output signal representing a condition of the lens.
Patent CA-2112997-A1 (CA)
Title: Folding bunk bed
Inventor: LAZAROFF TERRENCE P
IPC: A47C19/20
Filed: 1994-02-15
Abstract: The present invention relates to space saving beds, more particularly to bunk beds that fold and store, to provide more floor space when not in use as beds. In the prior art such beds have required to be fixed to either the floor  U.S. patent 50,590 or the wall U.S. patent 2,703,315 of the room they occupy, limiting their use to stationary applications; that is they are not readily moved from room to room, or building to building.
Patent CA-2113983-A1 (CA)
Title: Discharge apparatus for article handling system
Inventor: MOJDEN ANDREW E
IPC: B65G47/69
Filed: 1994-01-21
Abstract: Abstract of the Disclosure A discharge apparatus for an article handling system receives a group of articles in a facewise stacked condition and delivering the group of articles to an outfeed apparatus wherein the articles are arranged in a continuous flow.  The discharge apparatus comprises a first stage station wherein groups of articles are received; an elongate discharge station having an incoming end and an outgoing end, the outgoing end being adjacent an outfeed apparatus, and the incoming end being spaced apart from the first stage station.  An article carrying lane extends from the first stage station through the discharge station.  A shuttle means is bidirectionally movable between the first stage station and the discharge station for transporting a group of articles along the article carrying lane from the first stage station to the discharge station and returning to the first stage station to receive a subsequent group of articles.  A discharge carriage means is bidirectionally movable between the incoming end and the outgoing end of the discharge station for advancing articles along the article carrying lane to the outfeed apparatus in a continuous flow.  Operating control operates the shuttle means to transport a leading end of a group of articles into engagement with a trailing end of articles previously transported to the discharge station to make up a continuous flow of articles in the discharge station and thereaftar operates the discharge carriage for advancing the articles toward the outgoing end of the discharge station.
Patent CA-2116296-A1 (CA)
Title: Trocar safety shield locking mechanism
Inventor: SMITH RICHARD S
IPC: A61B17/34
Filed: 1994-02-23
Abstract: A trocar and trocar obturator assembly having an obturator and a locking mechanism responsive to proximal, axial movement of the trocar obturator is disclosed. The trocar obturator has an elongated obturator shaft having a proximal end and a distal end with a piercing tip mounted thereto. The proximal end of the trocar obturator shaft is slidably mounted in a handle such that the obturator shaft is moveable axially. A protective safety shield having a distal end and a proximal end with a flange member mounted to the proximal end is slidably mounted on the trocar obturator. The safety shield is moveable, axially, between an extended distal position and a retracted proximal position. The protective safety shield is disposed concentrically about the obturator. A lockout arm for locking the safety shield in a locked extended position is mounted in the trocar obturator handle. An actuating collar member is-mounted to the proximal end of the obturator shaft in the obturator handle and is moveable with the obturator shaft. The obturator collar disengages the locking arm when moved proximally and engages the locking arm when trocar is armed. The trocar obturator assembly may be concentrically mounted in a trocar cannula having a passageway for receiving the trocar obturator and safety shield. The locking mechanism is actuated by proximal, axial motion of the obturator.
Patent CA-2116887-A1 (CA)
Title: Ballast grading machine
Inventor: THEURER JOSEF
IPC: B61D15/00
Filed: 1994-03-03
Abstract: A ballast grading machine (1) comprising a machine frame (4) supported on on-track undercarriages (5) is provided with a ballast plough (11) designed for vertical adjustment by means of drives (8), a vertically adjustable and rotatable sweeping brush (18), a suction arrangement (17) having a vacuum generator (16), and a driver's cab (19). The machine frame (4) consists of a front, first frame part (2), in the direction of travel, which has the ballast plough (11) and another, second frame part (3) joined to the said first frame part in an articulated manner and having the vacuum generator (16) and the sweeping brush (18). The suction arrangement (17) has a suction nozzle (20) projecting over the rear machine end (21), with respect to the direction of travel, connected by a flexible suction pipe (22) to the vacuum generator (16) and connected to a drive (40), the said suction nozzle being adjustable by means of a control unit (23) in the adjacent driver's cab (19).
Patent CA-2117964-A1 (CA)
Inventor: NORTON R SCOTT
IPC: A01D41/14
Filed: 1994-10-12
Abstract: A reverse system for the feeder chain of a combine harvester comprises a hydraulic motor mounted on a slide and operated by a cylinder to move from a retracted position to a forward operating position. In the operating position the mechanical coupling connects the shaft of the hydraulic motor to a drive sprocket connected to the feeder chain. Hydraulic fluid to the cylinder and to the hydraulic motor is tapped from the lift cylinders of the combine from a solenoid operated diverter valve. A control unit controls the supply of the pressurized fluid to the cylinder while delaying the supply of fluid to the hydraulic motor so that the mechanical coupling is connected while stationary before the hydraulic motor starts. This arrangement can be provided by simple mechanical devices providing an inexpensive drive system.
Patent CA-2119953-A1 (CA)
Inventor: PATSIDIS KONSTANTINOS
IPC: C08F4/658
Filed: 1994-03-25
Abstract: ABSTRACT OF THE DISCLOSURE A Process is disclosed comprising reacting an alkali metal salt of Z with MX4 to form a trihalo compound; reacting the trihalo compound with an alkali metal salt of Z' to form a dihalo compound; and reacting the dihalo compound with at least one alkali metal organic compound to form 2-MR2-Z', where Z is a substituted or unsubstituted fluorenyl radical, N is Ge, Si, or Sn, X is Cl, Br, F, or I, each R is a hydrocarbyl radical containing 1 to 20 carbon atoms, and Z' is an unsubstituted cyclopentadienyl, substituted cyclopentadienyl, unsubstituted indenyl, substituted indenyl, unsubstituted fluorenyl, or a substituted fluorenyl. Also new fluorene compounds are disclosed.
Patent CA-2122121-A1 (CA)
Inventor: MAHEUX ROSAIRE
IPC: B62D21/14
Filed: 1994-04-22
Abstract: Precis Dans le domaine des remorques, on sait que chaque utilisation requiert une remorque spécifique à chaque besoin. Dans la présente invention le mécanisme présentépermet de varier la largeur des roues. Ceci permet d'augmenter le champ d'utilisation d'une même remorque , que se soit attaché à un véhicule routier ou bien à un véhicule tout terrain.
Patent CA-2124914-A1 (CA)
Inventor: SCHNITTGRUND GARY D
IPC: B01J19/02
Filed: 1994-06-01
Abstract: Diffusion resistant refractory such as alumina for containment of destructive fluorine and fluorine compounds in the molten salt oxidation of fluorine-containing organic waste, formed of a porous refractory such as porous alumina impregnated with a salt such as sodium carbonate, which is non-reactive with the refractory and compatible with the molten salt reaction medium, thereby effectively blocking diffusion baths for fluorine and its compounds from the molten salt bath through the refractory.  Conventional refractories such as alumina bricks containing about 1 to about 25% open porosity can be placed in a molten liquid salt such as molten sodium carbonate, in a vessel which can be pressurized to force the molten sodium carbonate into the pores of the alumina brick to impregnate same and form alumina brick resistant to diffusion of fluoride-rich molten salt.
Patent CA-2125004-A1 (CA)
Title: Simultaneous amplification of multiple targets
Inventor: WALKER GEORGE TERRANCE
IPC: C12Q1/6853
Filed: 1994-06-02
Abstract: Methods for multiplex amplification of target nucleic acid sequences using a single pair of primers. Defined sequences are appended to the ends of multiple target sequences as part of the amplification reaction so that no steps in addition to amplification are required. The target sequences with the appended defined sequences need not be isolated prior to amplification. In one embodiment for coamplification of two target sequences, a sequence corresponding to a terminal segment of the first target sequence is appended to one end of the second target sequence and a sequence corresponding to a terminal segment of the second target sequence is appended to one end of the first target sequence. Amplification of the two targets then requires only a single pair of primers. Alternatively, a single defined sequence may be appended to the 5' and 3' ends of any number of selected targets. All such modified target sequences may then be amplified using a single pair of primers which hybridize to the defined end-sequences.
Patent CA-2127400-A1 (CA)
Inventor: IBBOTT JACK KENNETH
IPC: F16D1/02
Filed: 1994-07-05
Abstract: In a method and apparatus for treating fluid flowing through piping so as to prevent the deposition of a calcium and magnesium scale on the piping, for example, positive and negative electrodes of electrically conductive materials having different electrochemical potentials are provided on the outer peripheral surface of an electrically insulative tubular member through which the fluid flows. Because the electrodes are disposed out of physical contact with the flowing fluid, the electrodes do not pose an obstacle to the fluid flow nor are the electrodes abraded or worn by particles that may be entrained in the fluid.    Nonetheless, an electroconductive connection between the electrodes is established through the body of fluid by a capacitive effect so that the fluid is ionized.
Patent CA-2128042-A1 (CA)
Inventor: KUMAGAI YOSHINARI
IPC: A61K35/616
Filed: 1994-07-14
Abstract: A calcium containing composition was obtained by baking sea urchin shells. This calcium containing composition gives superior oral bioavailability, has better appearance and taste, contains low impurity, and provides high yield.      Therefore, this sea urchin shell derived calcium containing composition is useful in the treatment and prophylaxis of various diseases which require calcium supplementation such as hypocalcemia, osteoporosis, renal osteodystrophy, and so forth. Also, it is suitable to combining into health food and feed for the purpose of calcium supply.
Patent CA-2131514-A1 (CA)
Inventor: ACKER STANLEY
IPC: B63B17/02
Filed: 1994-09-06
Abstract: An improved system for attaching boat covers to boats is provided.  In the preferred embodiment, a male/female connecting system is employed where one-half of the connecting system is attached to the cover via length-adjustable straps and the other half of the connecting system is attached to the boat via an attachment strip that provides for lateral movement of the connectors.  Thus, one-half of the connecting system may be moved farther away or closer to the edge of the boat cover and the other half of the connecting system may be moved laterally along the boat side for easy connections.  After all of the connections are made, the straps may be tightened to remove any slack from the boat cover and create a tight fit of the boat cover over the opening of the boat.
Patent CA-2134695-A1 (CA)
Inventor: RAITH ALEX K
IPC: H04W48/16
Filed: 1994-10-31
Abstract: A communications system in which information is transmitted in a plurality of time slots grouped into a plurality of superframes which are, in turn, grouped into a plurality of paging frames. A remote station receives paging messages once in each paging frame.
Patent CA-2137749-A1 (CA)
Inventor: BUIJ ARNOLD WILLEM
IPC: H05B41/24
Filed: 1994-12-09
Abstract: The invention relates to a circuit arrangement for operating at least two discharge lamps (La1, La2), comprising -      input terminals (K1, K2) for connection to a supply voltage source, -      switching means (S1, S2) coupled to the input terminals for generating a high-frequency voltage from a supply voltage delivered by the supply voltage source, -      a control circuit (SC) for generating a high-frequency signal for rendering the switching means conducting and non-conducting with high frequency, -      a first load branch (I) provided with two ends which are coupled to the switching means, with first inductive means (L1), with first capacitive means (C1), and with terminals (K3, K4) for accommodating a first discharge lamp (La1), -      a second load branch (II) provided with two ends which are connected to the ends of the first load branch, with second inductive means (L2), with second capacitive means (C2), and with terminals (K5, K6) for accommodating a second discharge lamp (La2). According to the invention, the circuit arrangement according to the invention is in addition characterized in that the resonance frequency of the first load branch is different from the resonance frequency of the second load branch, in that the frequency of the high-frequency voltage is higher than the lower resonance frequency and lower than the higher resonance frequency, and in that the circuit arrangement is provided with means for adjusting the frequency of the high-frequency voltage. It is achieved thereby that the ratio between the luminous fluxes of the discharge lamps can be controlled in a simple manner.
Patent CA-2142710-A1 (CA)
Title: Apparatus and method for constructing a spray in place structure
Inventor: JONES GREG
IPC: B05B7/14
Filed: 1993-07-26
Abstract: A system for cutting and spraying a plurality of resin strands with an emulsion. The system includes a spray gun (12) that has a cutter assembly (58) that cuts a single resin thread into a plurality of individual strands. The cutter assembly (58) is constructed to cut the strands into varying lengths. The strands are blown from the gun by a housing that is connected to a source of pressurized air. The housing has a pair of openings that are adapted to blow the strands parallel with the gun, so that the resin lies flat on the working surface. The gun (12) also has a pair of nozzles (66) attached to the housing (54) and coupled to a progressive cavity pump (20) that supplies an emulsion. The nozzles (66) are adapted to spray the emulsion into the path of the resin spray, so that the resin and emulsion are mixed onto the working surface.