baber/WOPTO huggingface dataset:
Patent CA-2100209-A1 (CA)
Title: Handgun bore lock
Inventor: ZHANG PING
IPC: F41A17/44
Filed: 1993-07-09
Abstract: ABSTRACT           This invention relates to a lock for special use, especially for handgun.  It can overcome the problems of the chain  lock conventionally used for locking the handgun bore, i.e. because the lock is exposed to the outside of the handgun , it is easy to be destroyed by hacksaw, file and cutting pliers and it is easy to be discovered.  Therefore, its saftey is poor. In addition, it is difficult to put the lock handgun into the holster.  The present invention is embodied by inserting the locking bar into the rifle of the barrel until the tip of the locking bar is clicked into the lock anchor catch pedestals of the lock housing hole which is located in the chamber so as to make the barrel locked. Because the lock is concealed in the barrel and only a coin-sized muzzle cover is exposed to the outside of the handgun the lock may not be destroyed by hacksaw, file and other means, so the safety has been strengthened.  The said lock can be made according to different standards and may meet the needs of various handguns.             Fig. 1 is the drawing of this abstract.
Patent CA-2100382-A1 (CA)
Title: Game call
Inventor: PARROTT DANNY L
IPC: A01M31/00
Filed: 1993-07-13
Abstract: ABSTRACT      A device for a human to produce animal calls comprises: a main body with first and second ends and an intermediate portion therebetween and a longitudinal air passage therethrough from the first to the end; a reed with a restrained end and an unrestrained end, positioned atop a portion of the air passage so that the user's breath being expelled through the air passage causes the unrestrained end to vibrate; a plate for retaining the restrained end of the reed against the main body along the intermediate portion thereof; and a generally elliptical solid piece of resilient foamed polymeric material for gripping the device between the teeth and/or lips of the human user.  The device may  further comprise an "O" ring frictionally engaged around the reed and the main body and compressing the reed against the main body along the respective intermediate portions of the reed and the main body.  The elliptical solid piece of resilient foamed polymeric material has an aperture therethrough such that the solid piece is slidably positionable upon the plate for retaining the reed, whereupon it frictionally engages.
Patent CA-2104798-A1 (CA)
Title: Three-component refrigerant
Inventor: PEARSON STEPHEN F
IPC: B41J2/16
Filed: 1991-03-22
Abstract: A three component refrigerant composition for use in vapour compression refrigerators and avoiding the use of ozone-depleting chlorofluorocarbons comprises a three component mixture of: (i) a major portion comprised of chlorodifluoromethane (R22) or pentafluoroethane (R125); (ii) R125 or octafluoropropane (R218); and (iii) propane, in non-flammable proportions.
Patent CA-2107877-A1 (CA)
Inventor: BRADSTREET JOSEPH R JR
IPC: B27L11/00
Filed: 1993-10-06
Abstract: CUTTING ASSEMBLY HAVING EXTENDED-LIFE     REGRINDABLE DISPOSABLE KNIFES   Abstract of the Disclosure A knife assembly for a disc type wood chipper includes a reversible disposable knife having a serrated back bearing surface positioned between a serrated knife clamp and a flat counterknife.  The knife can be reground and advanced along the serrated clamping surface of the clamp so as to maintain a desired edge position with respect to the surface of the chipper disc and the anvil surface.
Patent CA-2108139-A1 (CA)
Title: Sintered coatings for implantable prostheses
Inventor: CONTA ROBERT L
IPC: A61F2/00
Filed: 1993-02-18
Abstract: A sintered coating (13) for an implantable prosthesis (10) is provided having 1) interstices into which tissue or bone can grow, and 2) increased surface roughness which provides enhanced initial press-fit fixation. In certain embodiments, the coating includes at least two sets of particles (46, 48) having different mean diameters. The sizes and numbers of particles are chosen so as to produce a matrix of smaller particles (48) in which are embedded a lesser number of spaced-apart larger particles (46). The smaller particles (48) provide support for the larger particles (46), and the larger particles (46) stand proud of the smaller particles (48) to provide the enhanced surface roughness. In other embodiments, the coating includes both generally smaller spherically-shaped (SS) particles and generally larger non-spherically-shaped (NSS) particles, with the NSS particles providing enhanced surface roughness and the SS particles providing support for the NSS  particles.
Patent CA-2110188-A1 (CA)
Title: Apparatus and method for the detection and measurement of liquid water and ice layers on the surfaces of solid materials
Inventor: STOLARCZYK LARRY G
IPC: G01R23/07
Filed: 1993-11-29
Abstract: ABSTRACT    An embodiment of the present invention is a roadway sensor for surface installation in a hole such that a thin ceramic contact sensor may be used to measure and cross-compare fundamental physical antenna parameters of the space immediately above a roadway or bridge surface. Measurements are combined by a microprocessor to discriminate between dry pavement, water (rain), snow and ice above the sensor head.  Ambient surface temperature, water depth and ice/slush conditions are determined to estimate any hydroplaning hazard and ice/antifreeze/water mixtures.  The sensor comprises an antenna that exhibits a resonant frequency and an input admittance including a real term; a Maxwell bridge coupled to the antenna for detecting the resonant frequency, input admittance and real term; and a frequency sweeping oscillator for driving the antenna at a plurality of frequencies proximate in frequency to the resonant frequency.  A phase sensitive detector determines an attenuation rate and phase and thereby is able to extract a conductivity (.sigma.) and a dielectric (.epsilon.) measurement.  The microprocessor relates the conductivity and dielectric measurements to yield, for example, a pair of estimates for ice and water content and layer thickness.
Patent CA-2110298-A1 (CA)
Title: Process for producing calcium hypochlorite from concentrated hypochlorous acid solutions
Inventor: HILLIARD GARLAND E
IPC: C01B11/06
Filed: 1992-05-08
Abstract: A process for producing calcium hypochlorite which consists essentially of reacting lime or a lime slurry containing greater than 30 per cent by weight of Ca(OH)2 with a chlorinating agent consisting of a hyprochlorous acid solution containing at least about 35 percent by weight of HOCl to produce a slurry of calcium hypochlorite dihydrate crystals in a solution of calcium hypochlorite, the slurry containing at least 30 per cent of Ca(OCl)2 and being substantially free of alkali metal and chloride ions and having a calcium chloride concentration of less than about 3 percent by weight. The process of the invention does not require the use of supplementary chlorinating agents such as chlorine or alkali metal hypochlorites and is substantially free of effluents requiring treatment and disposal.
Patent CA-2115204-A1 (CA)
Title: Method of taking out viscera of fish and apparatus thereof
Inventor: YOSHIDA MASANORI
IPC: A22C25/14
Filed: 1994-02-08
Abstract: A method and an apparatus for taking out the viscera of a fish. A fish, the head of which is cut off, is conveyed by conveying belts and the belly of the fish is incised with a cutting blade. The fish, the belly of which has been incised, is caused to rise along a bone-supporting plate to make the position of the bone constant. The pointed end of a membrane peeling-off blade is inserted into the top portion outside a coelomic membrane of the fish to strip the coelomic membrane from the fish. Since the viscera of the fish is wrapped in the coelomic membrane, the viscera is taken out from the fish meat by stripping the coelomic membrane from the fish meat.
Patent CA-2119150-A1 (CA)
Title: Precipitation hardenable martensitic stainless steel
Inventor: HULTIN-STIGENBERG ANNA
IPC: C22C38/42
Filed: 1992-10-02
Abstract: Precipitation hardenable martensitic stainless steel of high strength combined with high ductility. The iron-based steel comprises of about 10 to 14 % chromium, about 7 to 11 % nickel, about 0.5 to 6 %  molybdenum, up to 9 % cobalt, about 0.5 % to 4 % copper, about 0.4 to 1.4 % titanium, about 0.05 to 0.6 % aluminium, carbon and nitrogen not exceeding 0.05 % with iron as the remainder and all other elements of the periodic table not exceeding 0.5 %.
Patent CA-2122040-A1 (CA)
Title: Rain gutter covers and roof line protectors
Inventor: KUHNS RICHARD L
IPC: E04D13/076
Filed: 1992-10-20
Abstract: A covering and protector having a unitary sheet including an extended flat portion which does not contain any apertures therein which functions as a closed top portion (1) for covering the open top of the existing gutter (6) and which also serves to interfit under and between existing roofing materials (12) to provide for secure fastening to the roof as well as to provide an unin-terrupted smooth path for rainwater to travel off the roof (12). The top portion is connected to an apertured portion (26) contain-ing a number of apertures (10) each with a flap for directing rain into the surface of the gutter. A lip portion (16), extending from the edge of the apertured portion, interfits beneath the upper lip (20) of the front wall of the existing gutter and serves both to close the gutter at its front wall (4) and to provide a surface for fastening the cover invention to the existing rain gutter.
Patent CA-2124397-A1 (CA)
Title: Anti-kink control for electrical cords
Inventor: DOLSON MICHEAL D
IPC: H01R13/56
Filed: 1994-05-26
Abstract: AN ANTI-KINK CONTROL FOR ELECTRICAL CORDS          ABSTRACT OF THE DISCLOSURE     An anti-kink control for an electric cord wherein the cord has relatively flat top and bottom surfaces and relatively round side surfaces.  The anti-kink control includes a series of washers assembled on the cord in closely spaced co-axial relation.  A first pair of washers are joined by a first axially extending finger along each side of the cord.  A next washer adjacent to one of the pair of washers is joined to the one of the pair of washers by a second axially extending finger along the top and bottom surfaces of said cord.  The assembled washers form a sleeve about the cord.  The space along the side surfaces between adjacent washers joined along the top and bottom surfaces is relatively larger than the space along the top and bottom surfaces between adjacent washers joined along the side surfaces.
Patent CA-2126034-A1 (CA)
Title: Potted fiber optic gyro sensor coil for stringent vibration and thermal environments
Inventor: CORDOVA AMADO
IPC: G01C19/72
Filed: 1994-06-16
Abstract: A sensor coil for a fiber optic gyroscope is potted in polymer-based material selected for avoiding such temperature-related anomalies as bias spikes and bias crossings.  The potting material is based upon a silicone composition characterized by a glass transition temperature that lies below and outside the operational range required for commercial or military operation.   Predetermined fillers may be added to the silicone for bolstering stiffness (Young's modulus) within the polymer's rubbery region to reduce the gyro's bias sensitivity to vibration.  Excellent bias thermal and vibration performance has been achieved with coils potted in silicone adhesive with a carbon-black filler.
Patent CA-2126572-A1 (CA)
Inventor: GOLICZ ROMAN M
IPC: B65H3/04
Filed: 1993-11-10
Abstract: 2126572 9411288 PCTABS00032 A high speed sheet feeder (21) for directing sheets to a host utilization device having a stack feed elevator platform accessed by a drawer provides a feed ramp (29) for supporting a stack of sheets. Sheets in the stack are deshingled by a feeder singulator (24) and driven, typically, downwardly to a feed tray (26) extending remote from the singulator. The feed tray (26) receives sheets in a space that enables formation of a second smaller stack of sheets. The tray (26) further includes an opening adjacent the second stack that enables sheets to be slid from the top of the second stack. The tray (26) is positioned and constructed so that it can enter and be removed from a port in the drawer of the utilization device. The feed tray's positioning relative to the port allows sheets in the second stack to be placed adjacent a utilization device singulator (143) in the drawer so that sheets can be removed by the utilization device singulator (143) for processing thereby. In utilization devices having two drawers positioned one atop the other, the tray can be constructed so that the drawer not interfaced with the tray can be accessed for loading without removing the tray from the other drawer.
Patent CA-2128891-A1 (CA)
Title: Polynucleotide immobilized support
Inventor: KELLER CYLIA
IPC: C12Q1/68
Filed: 1993-01-29
Abstract: The present invention provides a nucleotide-immobilized support which includes an insoluble support and a polynucleotide bound to the support. This polynucleotide includes at least one sequence complementary to a polyadenylic acid tail of an mRNA. The nucleotide-immobilized support is useful for a variety of methods, including the synthesis of both sense and antisense cDNA, as well as double stranded cDNA. The nucleotide-immobilized support is also useful for synthesis of both sense and antisense mRNA.  Additionally, the nucleotide-immobilized support also provides an improved method of placing a cDNA sequence into a vector in a particular orientation. The present invention also includes a new method for binding polynucleotides to insoluble supports.
Patent CA-2129856-A1 (CA)
Title: Device for Granulating Plastics
Inventor: BACHER HELMUT
IPC: B29B17/00
Filed: 1993-02-10
Abstract: Proposed is a device for granulating thermally unstable plastics, the device having a plasticizing screw (13) which is located in a housing (14) and is tip-driven  by a drive unit (12). The plasticizing screw (13) conveys the plastic material through outlet ports (27) over which at least one granulating blade (29) which is driven to rotate by a drive unit (7) passes. The drive unit (12) for the plasticizing screw (13) is located at the same end of the screw as the oulet ports (27), the path of the granulating blade (29) passing between this drive unit (12) and the outlet ports (27). The drive shaft (15) for the plasticizing screw (13) is designed as a separate component from the screw and is rotatably and detachably coupled to the end of the screw (13). Air from a blower (10) is used to cool and remove the plastic granules cut off by the blade.
Patent CA-2136771-A1 (CA)
Inventor: MOREIRA NELSON C
IPC: F27B3/14
Filed: 1994-11-28
Abstract: A drop in, and lift out, furnace lining assembly for use in a furnace shell of a metal refining vessel comprises (a) a lifting frame, having a base section, four lifting rods attached to the base section and a set of lifting cables attached to the lifting rods; and (b) a pre-cast and pre-fired refractory inner lining, and backup refractory/outer insulation lining, positioned and supported in the lifting frame movable into and out of the furnace shell as an integral unit by means of lifting equipment without moving the furnace shell from its operational position.
Patent CA-2137756-A1 (CA)
Inventor: OZAWA KAZUNORI
IPC: G10L19/12
Filed: 1994-12-09
Abstract: After dividing voice signals into subframes, the voice coder of the present invention calculates auditory sense masking threshold values for each subframe with a masking threshold value calculating circuit, and transforms the auditory sense masking threshold values to auditory sense weighting filter coefficients. An auditory sense weighting circuit performs auditory sense weighting to the signals using the auditory sense weighting filter coefficients and searches excitation codebooks or multipulses using auditory sense weighted signals.
Patent CA-2137933-A1 (CA)
Title: Copolymerizable oxime ethers and copolymers containing them
Inventor: BOTT KASPAR
IPC: C07C251/54
Filed: 1993-06-03
Abstract: The invention concerns copolymerizable oxime ethers of generale formula (I), in which A is a bivalent link group; R1 is a hydrogen atom or a C1 to C4 alkyl group; and R2 and R3, independently of each other, may be a hydrogen atom, a C1 to C10 alkyl group, a C1 to C10 alkoxy group, a C5 to C10 cycloalkyl group or a C5 to C10 aryl group which may also contain 1 to 3 non-adjacent nitrogen, oxygen or sulphur hetero-atoms in the carbon chain or in the carbon ring and may be substituted by C1 to C4 alkyl or alkoxy groups, R2 or R3 may be a hydrogen atom or R2 and R3 together may form a bridge made up of 3 to 14 carbon atoms, in which case some of these carbon atoms may also form part of an aromatic ring.
Patent CA-2140571-A1 (CA)
Title: Coloured polymer composition
Inventor: VONK GERARDUS P T
IPC: C08L101/02
Filed: 1995-01-19
Abstract: The invention relates to a coloured polymer composition with strongly improved colour properties. This improvement is achieved by masking groups in the polymer that are reactive with respect to the colorant with the aid of an effective quantity of a compound suitable for this purpose.          The invention is particularly suitable for polyamides, the amino end group content being reduced to less than 20, preferably less than 5 meq/kg, with the aid of acetyl lactam. The thermostability of e.g. CI Pigment Red 209 coloured nylon-6 is improved by a factor of 9. The brightness of the colour also increases to a surprising extent.
Patent CA-2140784-A1 (CA)
Title: A moulding device
Inventor: CHADWICK GEOFFREY A
IPC: B22D17/10
Filed: 1992-07-23
Abstract: The present invention relates to a moulding device comprising a moulding block (1) having a moulding cavity (2) therein. A chamber (5) is connected to the cavity (2) in which a piston (4) slides. There is a closing means (6) provided between the chamber (5) and the cavity (2) which is moveable from a first position in which the mouth of the chamber (5) is sealed to allow the chamber (5) to be charged with a molten substance whilst the piston (4) is retracted, to one or more further positions which allow the molten substance to be injected directly into the cavity (2) when the piston (4) is activated.
Patent CA-2141796-A1 (CA)
Title: Decolorizing polyaspartate and copolymers of polyaspartate
Inventor: WOOD LOUIS L
IPC: C08G73/10
Filed: 1993-08-05
Abstract: Solutions of polymers of aspartic acid or its amine copolymers prepared by thermal condensation are reacted with a decolorizing agent selected from the group consisting of hypochlorite, chlorine, chlorine dioxide, hydrogen peroxide, a peroxycarboxylate or ozone, sufficient in strength to effect the desired decolorization.
Patent CA-2143289-A1 (CA)
Title: Water-in-oil emulsions containing water-soluble alkyl glycosides
Inventor: KROEPKE RAINER
IPC: C09K23/56
Filed: 1993-09-13
Abstract: W/O  emulsions  comprising  a  water-soluble  alkyl glycoside or a mixture of several water-soluble alkyl glycosides.
Patent CA-2143506-A1 (CA)
Inventor: COLLINS SCOTT J
IPC: A47K10/38
Filed: 1995-02-27
Abstract: A dispenser for a roll of tissue material wound around a tubular roll core having an inner surface, the dispenser comprising a housing including a base; and a mandrel mounted on the base for supporting the roll for rotation about a generally horizontally extending axis, the mandrel including an outer surface and structure for reducing frictional engagement between the roll core inner surface and the mandrel outer surface.
Patent CA-2144740-A1 (CA)
Title: A thin multichip module
Inventor: CLAYTON JAMES E
IPC: H01L23/498
Filed: 1993-09-13
Abstract: An improved semiconductor module comprising a molded frame and a composite semiconductor substrate subassembly received in a cavity in the molded frame (10). The composite semiconductor substrate subassembly comprises a plurality of semiconductor devices which are connected to electrical contacts on an edge of the molded frame by a variety of configurations described herein. In one embodiment of the invention, the composite semiconductor substrate subassembly includes a composite substrate which comprises a thin metal cover plate and thin laminate circuit which is bonded to the metal cover plate by a film adhesive. The composite substrate provides a mounting surface for the placement of semiconductor devices and their associated passive components (58). In some of the embodiments disclosed herein, the composite semiconductor substrate subassembly, comprising a cover plate with the composite substrate attached thereto, is attached to the molded frame by a rectangular ring formed from an anisotropic, electrically conductive adhesive material (52).  The composite substrate employed in the present invention offers the advantage of allowing the components to be pre-assembled, tested and repaired prior to final attachment into the molded frame.
Patent CA-2147604-A1 (CA)
Title: Process for the cyclodimerization of 1,3-butadienes to 4-vinylcyclohexenes
Inventor: DIESEN RONALD W
IPC: C07B61/00
Filed: 1992-10-22
Abstract: A process for the cyclodimerization of 1,3-butadienes to 4-vinylcyclohexenes. The process involves contacting a butadiene with a copper(I)-aluminosilicate zeolite prepared by (a) an impregnation method, or (b) heating a solid mixture of a copper salt and the zeolite, or (c) contacting vapors of a copper salt with the zeolite. The catalysts exhibit long life and good activity in the claimed process. The impregnated Cu(I)-catalyst is claimed. A second process for the cyclodimerization of 1,3-butadienes to 4-vinylcyclohexenes. The process involves contacting a butadiene with a catalyst containing copper(I) ions supported on a carrier in the presence of a hydroxylic solvent.
Patent CA-2149289-A1 (CA)
Title: Discharge display apparatus
Inventor: AMANO YOSHIFUMI
IPC: H01J17/49
Filed: 1995-05-12
Abstract: A discharge display apparatus comprises a plurality of first address electrodes (1) and a plurality of second address electrodes (2) both of which are disposed adjacent to each other so as to cross each other through a partition (6) and memory electrodes (3, 4) which have a plurality of apertures provided therethrough and are entirely covered with respective insulating layers (3a, 4a).  The plurality of first and second address electrodes (1, 2) and the memory electrode (3, 4) are successively laminated and sealed into a tube body having discharge gas.
Patent CA-2149792-A1 (CA)
Title: Traffic light perception enhancement system
Inventor: CARROLL NEIL
IPC: G08G1/095
Filed: 1995-05-19
Abstract: An assembly or system which is capable of enhancing the perception of drivers as to the status of traffic lights ahead by relaying the status to ground-level lights placed at the side of traffic lanes which can be seen more easily by drivers when conditions of sunlight or traffic congestion cause forward vision to be difficult or impossible.