baber/WOPTO huggingface dataset:
Patent CA-2073814-A1 (CA)
Title: Aqueous epoxy-amine coating compositions
Inventor: OBLOH RONALD
IPC: C09D163/00
Filed: 1992-07-16
Abstract: An aqueous coating agent, containing: one or more film-forming water-dilutable or water-soluble epoxy resins with an epoxide equivalent weight of 100 to 10000; one or more water-dilutable or water-soluble polyamines with at least two primary and/or secondary amino groups in the molecule and an equivalent weight of 50 to 500; and optional pigments, fillers and/or other conventional lacquer adjuvants; the ratio of reactive H atoms in the polyamines to the epoxy groups in the epoxy resins being 0.7 : 1 to 1.5 : 1; and additionally 5 to 80 wt.% of one or more water-dilutable or water-soluble polyurethane resins with a number average molecular weight (Mn) of 500 to 500000 relative to the sum of the weights of the solids in the epoxy resin and polyamine.
Patent CA-2085518-A1 (CA)
Title: Dc motor reversing control
Inventor: PAGE ALAN B
IPC: H02P3/10
Filed: 1992-12-16
Abstract: ABSTRACT OF THE DISCLOSURE         A  DC motor reversing control utilizes two single-pole double-throw relays which share two stationary contacts. The control includes connector studs connected to the relay contacts and adapted to be connected to the DC motor and DC power supply.  The control includes a connector socket which is adapted to receive a selector switch for controlling the direction of rotation of the DC motor.  The relays, connector studs, and connector socket are secured in a housing of said control in a close tolerance fit,  and various electrical connections in the housing are provided by interference fit. The housing comprises two identical plastic members secured together after assembly of all the internal components.
Patent CA-2085951-A1 (CA)
Inventor: KOZLOWSKI ZDZISLAW JANUSZ
IPC: B01J20/28
Filed: 1992-12-22
Abstract: A polyurethane particulate liquid absorbent, optionally containing microspheres, and a process for its preparation.  The absorbent is suitable for use in cleaning up spilled liquids ranging from mobile ones, such as gasoline, to viscous ones, such as crude oil.   The absorbent and absorbed liquid are readily separated by a centrifugation step,  thus providing recovered liquid, and liquid-free absorbent for re-use.
Patent CA-2090279-A1 (CA)
Title: Sulphonylbenzyl-substituted imidazopyridines
Inventor: HANKO RUDOLF
IPC: C07D471/04
Filed: 1993-02-24
Abstract: Sulphonylbenzyl-substituted imidazopyridines A b s t r a c t Sulphonylbenzyl-substituted  imidazopyridines  can  be prepared by reacting correspondingly substituted imidazo-pyridines with sulphonylbenzyl compounds. The sulphonyl-benzyl-substituted imidazopyridines can be employed as active compounds in medicaments, in particular for the treatment of hypertension and atherosclerosis.            Le A 28 925 - US
Patent CA-2090652-A1 (CA)
Title: Apparatus for bracing a plurality of vertebras of the human spine
Inventor: METZ-STAVENHAGEN PETER
IPC: A61B17/56
Filed: 1993-03-01
Abstract: An apparatus for bracing a plurality of vertebras of the human spine, comprising at least two pedicel screws having an annular head including a slot which extends into the opening and including internal thread portions, a securing screw to be screwed in said slot, a relatively stiff threaded rod to be inserted into the opening in the head of the pedicel screw and secured by said securing screws, and adjusting nuts screwed on said rod and cooperating which said head.
Patent CA-2090838-A1 (CA)
Title: Printed microwave susceptor
Inventor: HALL ROGER D
IPC: B65D81/34
Filed: 1993-03-02
Abstract: PRINTED MICROWAVE SUSCEPTOR          Abstract Paperboard packaging material for use in the manu-facture of containers for browning and crisping food in a microwave oven is prepared on a printing press.  The compo-nents of the packaging material include paperboard or an equivalent microwave transparent substrate, a susceptor layer prepared from a printable aqueous susceptor-ink composition, and an intermediate coating applied to the paperboard sub-strate before the susceptor layer is printed thereon to provide a thermal barrier between the paperboard substrate and the susceptor layer.  The thermal barrier layer may be coated or printed on the paperboard substrate as a sub-stantially uniformly thick layer while the susceptor-ink layer may be pattern-printed on the substrate in varying thickness corresponding to the location of food intended to be packaged in containers prepared from the packaging material.  The printed susceptor material is overprinted with a food contact coating.  The invention also contemplates the use of pigments or the like in one or more of the food contact layer, susceptor layer or thermal barrier layer to facilitate the release of water vapor from these layers during the microwave beating process.
Patent CA-2091428-A1 (CA)
Inventor: BROWN THOMAS H
IPC: B60P3/38
Filed: 1993-03-10
Abstract: A seating/bed arrangement for a motor home utilizes freestanding seats which may be moved from place to place within a recreational vehicle. The seats securable to fixed members of the vehicle by latches in various configurations, for example as an L-shaped settee, two oppositely facing seats, two one-behind-the-other seats or as a bed. A single fixed member of the vehicle and a single latch per seat may allow for the majority of the desirable configurations but an additional latch may be provided, notably for the L-shaped settee configuration.      When two seats are aligned, it is possible to form at least a full sized double bed by extending the seat fortioins forwards. A table may also be utilized in the bed configuration and the table may be provided with a dual purpose leg to support the table either as a table or as part of the bed.
Patent CA-2092663-A1 (CA)
Inventor: GARINO PIERANGELO
IPC: H04N9/64
Filed: 1993-03-12
Abstract: A video  control  circuit  is  provided which  is particularly adapted to multimedia applications, wherein image transmission services are offered in addition to usual telephone speech and data transmission services.  The circuit is capable of processing both photographic and graphic video images, meeting relevant CCIR standards as well as specifications commonly used in personal computers such as VGA and EGA, so as to allow the representation of either type of images on a single display.  To this end, it generates timings both for CCIR standards,  and for VGA standards, with an upper representation limit of graphic planes of 1024 columns per 1024 lines.  It can provide an interface between a computer and an ISDN circuit for the display of images from the latter as well as images from the computer and other sources.
Patent CA-2095723-A1 (CA)
Title: Secure system for activating personal computer software at remote locations
Inventor: WAITE DAVID P
IPC: G06F9/445
Filed: 1991-11-06
Abstract: A process and system for activating various programs are provided in a personal computer (10), The personal computer (10) is initially provided with a registration shell program (11). A data link (30) is established between the personal computer (10) and a registration computer (12). By providing the registration computer (12) with various information, a potential licensee can register to utilize the main program (16). Once the registration process is complete, a tamperproof overlay program is constructed at the registration computer (12) and transferred to the personal computer (10). The tamperproof overlay includes critical por-tions of the main program (16), without which the main program (16) would not operate and also contains licensee identification and license control data.
Patent CA-2101556-A1 (CA)
Inventor: HUNZIKER ERNST B
IPC: A61F2/30
Filed: 1992-01-30
Abstract: Methods and compositions are provided for the treatment and repair of defects or lesions in the cartilage of humans and other animals. The defect or lesion in the cartilage may be first treated with an enzyme to remove proteoglycans from the defect area.      To induce cartilage formation, the defect is filled or otherwise dressed with a biodegradable matrix having pores sufficiently large to allow repair cells to populate the matrix. The matrix filling the defect contains a proliferation agent at a concentration sufficient to stimulate proliferation of repair cells and a transforming factor in an appropriate delivery system to release the transforming factor at a concentration sufficient to transform repair cells in the matrix and defect area into cartilage-producing chondrocytes. The matrix may also contain a chemotactic agent to attract repair cells. The entire treatment may be carried out in a single arthroscopic or open surgical procedure.
Patent CA-2102478-A1 (CA)
Title: Polyvinyl halide compounds having improved surfaces and articles therefrom
Inventor: GREENLEE WILLIAM S
IPC: C08L63/00
Filed: 1993-11-04
Abstract: ABSTRACT      The rigid polyvinyl halide compounds disclose have improved surfaces and are made from polyvinyl halide, 0.01 to 10 phr each of: alkyl polyol ester, carboxylic salt, mineral oil, a carboxylic acid and optionally epoxidized oil provide high gloss, gloss retention, processability and physical properties.  The most preferred lubricant system comprises a C16 - C18 carboxylic acid, a mono C12 - C22 ester of glycerol, mineral oil, a calcium salt of a carboxylic acid and epoxidized soy oil .  The compounds disclosed exhibit an improved combination of heat distortion temperature, dynamic thermal stability, impact strength especially low temperature impact strength and gloss.  The compounds are made into articles including sheeting for thermoforming of shower stalls, wall panels, bathtubs, tub enclosures, refrigerator panels, cabinetry and the like, sporting equipment, appliance components, componentr for boats, automotive components, and business machine housings.
Patent CA-2102961-A1 (CA)
Title: Sports training ball
Inventor: MERKOSKY BRENNAN
IPC: A63B43/00
Filed: 1993-11-12
Abstract: ABSTRACT A sports ball has a spherical form and an aerodynamically rough surface. The ball has a weight in the range 20 to 40 grams. The surface roughness is preferably provided by a layer of woven textile fabric on the outer surface of a spherical core. The ball, when thrown, will simulate and exaggerate the movements of a normal baseball or other simulated ball. The ball may be used as a light weight sports ball or as a training ball for pitchers and batters.
Patent CA-2103731-A1 (CA)
Title: Urea and biuret prepolymers of mdi
Inventor: SLACK WILLIAM E
IPC: C08G18/80
Filed: 1993-08-10
Abstract: UREA AND BIURET PREPOLYMERS OF MDI    ABSTRACT OF THE DISCLOSURE           Disclosed herein is a liquid isocyanate prepolymer having an isocyanate group content of from 10 to 30% by weight, prepared by reacting: i)     a polyfunctional secondary amine group containing material of the general formula:                       wherein R    represents alkyl, alkenyl, cycloalkyl, aralkyl or aryl radical: A    represents an organic radical having a molecular weight between 28 and 6000 and having a functionality of m and m    represents an integer from 2 to 6; with ii)  an isocyanate mixture comprising:       a)     from 50 to 100% by weight of diphenylmethane diisocyanate of which from 2 to 50% by weight consist of 2,2'- and 2,4'-isomers; and b)     the balance being polyphenylpolymethylene polyisocyanates.
Patent CA-2105562-A1 (CA)
Title: Pumping station in a water flow system
Inventor: DION THOMAS R
IPC: F04D15/00
Filed: 1992-03-05
Abstract: A water flow system for collecting and discharging waste water, storm water and the like includes a water pumping station into which water is delivered through an inflow main (16) and from which water is pumped through a water discharge main (18). The pumping station has a water collection well, a pair of water pumps (20, 22) and a conduit arrangement by which the suction side of each pump is communicated with the well and the pressure side of each pump is communicated with the discharge main. A secondary conduit (48) also communicates the pressure side of one pump with the suction side of the other pump. A control system (38) is operative to actuate one of the pumps for normal pumping conditions and to actuate both pumps during periods of heavy water inflow to the station, the secondary conduit (48) providing serial flow of water through the pumps under such conditions to substantially increase the water outflow rate from the pumping station in comparison to conventional parallel combined operation of the pumps.
Patent CA-2107676-A1 (CA)
Inventor: WANG PING
IPC: H01L29/792
Filed: 1992-03-13
Abstract: A single transistor electrically programmable and erasable memory cell (10) is disclosed. The single transistor has a source (14), a drain (16) with a channel region (18) therebetween, defined on a substrate. A first insulating layer (20) is over the source, channel and drain regions. A floating gate (22) is positioned on top of the first insulating layer over a portion of the channel region and over a portion of the source region. A second insulating layer (25) has a top wall which is over the floating gate, and a sidewall which is adjacent thereto. A control gate has a first portion (24) which is over the first insulating layer and immediately adjacent to the sidewall of the second insulating layer. The control gate has a second portion (26) which is over the top wall of the second insulating layer and is over the floating gate. Erasure of the cell is accomplished by the mechanism of Fowler-Nordheim tunneling from the floating gate through the second insulating layer to the control gate.
Patent CA-2109626-A1 (CA)
Title: Polystyrene foams containing 1,1-difluoroethane and process of preparation
Inventor: YORK ROBERT O
IPC: C08J9/14
Filed: 1992-05-18
Abstract: This invention relates to the use of polyfluorocarbon blowing agents in the preparation of polymer foams; particularly the use of 1,1-difluoroethane in the preparation of polystyrene foams for food packaging and food serving.
Patent CA-2109941-A1 (CA)
Inventor: CHOW HERBERT S
IPC: G01N35/04
Filed: 1992-06-12
Abstract: A reaction cartridge (10) for an automatic analysis apparatus having a plurality of reaction wells (16) having different reagents disposed thereon, at least one sample well (11a, 11b), a well (12) containing magnetically separable particles for binding the sample, a fluorophore containing well (13), and a wash area (15) for washing a probe.
Patent CA-2113162-A1 (CA)
Title: Process for the production of starch esters for clinical, in particular parenteral use
Inventor: FOERSTER HARALD
IPC: C08B31/04
Filed: 1992-07-09
Abstract: A b s t r a c t For the production of water-soluble, physiologically compatible starch esters, starch is converted by acid hydrolysis or enzyme hydrolysis into a partial hydrolysate with an average molecular weight Mw in the range 10000 to 500000 Daltons, this partial hydrolysate is acylated in aqueous solution with the anhydride or halogenide of an aliphatic monocarboxylic acid with 2 to 4 carbon atoms or an aliphatic dicarboxylic acid with 3 to 6 carbon atoms or mixtures thereof and an alkalisation agent up to a molar substitution in the range 0.1 to 1.0 mol/mol. The salts are removed from the reaction mixture obtained in this way. The starch esters that can be obtained in this way are very well suited for clinical and especially for parenteral and dietary applications.
Patent CA-2113371-A1 (CA)
Title: Collection optics for high brightness discharge light source
Inventor: DAVENPORT JOHN M
IPC: F21V8/00
Filed: 1994-01-13
Abstract: Improved collection optics for a lighting system comprised of a light source, reflector and light receptive component include a multi-portion reflector or a non-imaging optical collector having a positive curvature located at an input end to the light receptive component. The collection optics capture additional lumens for transmission through the light guide. The optical arrangement can also collect different colors of light from the source that mould otherwise be omitted from transmission through the light receptive component.
Patent CA-2113488-A1 (CA)
Title: Oil spill recovery system
Inventor: DEAN MILES W
IPC: A62D3/00
Filed: 1994-01-14
Abstract: ABSTRACT           The present invention is used in response to petroleum related spills in the environment.  The hydrocarbon materials can be removed from any substrate, particularly ice or beach sand, by impinging in two separate fluid streams, a formable surfactant/emulsifying solution with a latent foaming agent and a foam inducing agent through specially designed variable pressure guns.  Once treated, the petroleum-related liquids are lifted above the substrate in a foam matrix formed while the solution is in contact with the spilled contaminants, and captured via standard industrial vacuum technology for later disposal.
Patent CA-2114625-A1 (CA)
Title: A method and an arrangement of estimating transmitted symbols at a receiver in digital signal transmission
Inventor: LARSSON LARS G
IPC: H04L25/02
Filed: 1993-05-28
Abstract: In a digital time-shared radio transmission system, a radio receiver receives a signal whose symbol frequency is lower than the channel bandwidth of the system. A correlating and sampling circuit receives a baseband signal, samples the signal eight times with each symbol time, performs channel correlation, generates a channel estimate and samples down the once sampled signal to an observed signal with two values for each symbol time. A channel equalizer executes a fractional viterbi algorithm which utilizes two delta-metric values for each state transition and generates estimated symbols. A channel estimating filter receives a symbol sequence of alternating zero-value symbols .OMEGA. and the estimated symbols and generates an estimated signal. The channel estimating filter is adapted with the aid of an error signal and the filter delivers a channel estimate to the channel equalizer. Weighting factors are generated with the aid of the error signal and the two aforementioned delta-metric values are coweighted to a common delta-metric value with the aid of the weighting factors, this common delta-metric value being used to generate the estimated symbols. The use of the weighting factors improves the metric calculation and enables the channel estimating filter and the channel equalizer to be relatively simple.     The insertion of the zero-value symbols simplifies the generation of the weighting factors and the adaptation of the channel estimating filter.
Patent CA-2115619-A1 (CA)
Title: Method and apparatus for freezing
Inventor: MILLER JEREMY P
IPC: B05B1/34
Filed: 1994-02-14
Abstract: ABSTRACT    METHOD AND APPARATUS FOR FREEZING       A tunnel freezer is cooled by selectively supplying liquid nitrogen to banks of spray nozzles. The banks are switched on and off as required so that at any given time the pressure upstream of each operational spray nozzle will be substantially constant at a level which closely approximates the maximum heat transfer coeffi-cient associated with the spray nozzle or the maximum effectiveness of the spray nozzle or a balance therebet-ween. The invention is in contrast to the prior art where the flow of liquid nitrogen to the spray nozzles is continuously varied in response to the thermal load.     Figure 3
Patent CA-2116030-A1 (CA)
Inventor: WINSTANLEY JAMES
IPC: F16G11/04
Filed: 1992-08-20
Abstract: A device (1; 10; 20; 40; 46; 50; 60) for securing two wires together comprises passageways for receiving wires and one or more wedging bodies (6; 7; 18; 33; 34; 41; 44; 59) which may be magnetically attractable to the wires. The wedges are operable to urge the wires towards the passageways or deform the wires so as to restrict movement of the wires at least in one direction.
Patent CA-2116119-A1 (CA)
Inventor: ENGLISH PHILIP
IPC: A46B11/02
Filed: 1991-08-20
Abstract: A toothbrush and toothpaste dispenser unit comprising a brush head (10) with a longitudinally extending toothpaste re-ceiving and dispensing opening (18) provided therein, and a disposable toothpaste receiver and dispenser cartridge (12) which en-gages the brush head (10) and connects to the opening (18) in the brush head (10). A dispensing piston (46) and a drive screw (34) are present with the cartridge (12) while a drive member (32) for the screw (34) is present and it includes a one way rotary drive means (54, 58). The cartridge (12) has an outer sleeve (36) which forms a handle for the dispenser unit. The unit has a single wall thickness, i.e. the outer sleeve (36) of the cartridge, in the cartridge portion of the unit.
Patent CA-2119756-A1 (CA)
Title: Process for preparing benzo[b]naphtyridines
Inventor: DAUBIE CHRISTOPHE
IPC: C07D471/04
Filed: 1992-10-08
Abstract: Process for the preparation of benzo[b]naphthyridines of general formula: <IMAGE> in which R is a carboxyl, alkyloxycarbonyl, cyano, carbamoyl, alkylcarbamoyl, benzylcarbamoyl, hydroxyethylcarbamoyl or dialkylaminoethylcarbamoyl radical or a dialkylcarbamoyl radical in which the alkyl parts may optionally form, with the nitrogen atom to which they are attached, a 5- or 6-membered heterocycle optionally containing another heteroatom chosen from oxygen, sulphur or nitrogen and optionally substituted on the nitrogen by an alkyl radical, R' is H, alkyl, fluoroalkyl, carboxyalkyl, (3 to 6 C)cycloalkyl, fluorophenyl, difluorophenyl, alkyloxy or alkylamino, and Hal is halogen, and their salts, where such exist, characterised in that:   1) an amine of general formula: R'-NH-CH2-CH2-R'' in which R'' is alkyloxycarbonyl, cyano, carbamoyl, alkylcarbamoyl, benzylcarbamoyl, hydroxyethylcarbamoyl, dialkylaminoethylcarbamoyl or dialkylcarbamoyl in which the alkyl parts may optionally form, with the nitrogen atom to which they are attached, a 5- or 6-membered heterocycle optionally containing another hetero atom chosen from oxygen, sulphur or nitrogen and optionally substituted on the nitrogen by an alkyl radical, is condensed with a chlorofluoroquinoline of general formula: <IMAGE> in which R1 is an alkyl radical, the alkyl radicals mentioned above have 1 to 4 C and are straight or branched,   2) the fluoroquinoline of general formula: <IMAGE>  in which R1 is defined as above in 1), is cyclised, 3) the 1,2,3,4-tetrahydrobenzo[b][1,8]naphthyridine of general formula: <IMAGE> is oxidised and the ester obtained is then optionally converted to an acid and optionally converted to a salt.
Patent CA-2120073-A1 (CA)
Title: Gun stock recoil mechanism
Inventor: IANNETTA LUIGI
IPC: F41C23/06
Filed: 1994-03-28
Abstract: A comb and recoil assembly for a shoulder firearm, the firearm having a stock with a butt end and a barrel end, includes a cheek piece which is connected to the upper surface of the stock. The cheek piece is movable between an extended position and a retracted position. A recoil mechanism is located in the interior of the stock and has a moving member which moves relative to the stock in response to the recoil of the firearm upon firing. The moving member and the cheek piece are connected by a cam and cam follower arrangement to substantially maintain the cheek piece in the extended position when the moving member is at rest and to permit the cheek piece to move to the retracted position upon the motion of the moving member in response to the recoil of the firearm.
Patent CA-2121499-A1 (CA)
Inventor: KAWANABE JUNICHI
IPC: G01N1/00
Filed: 1992-10-15
Abstract: The present invention aims to shorten an aspiration time, when aspirating a red blood cell component of a liquid sample having high viscosity.   When aspirating the red blood cell component of a blood sample through a nozzle tip, a piston is pulled at its maximum to produce a maximum aspirating force, and starts aspiration. When a pressure in an aspirating system becomes equal to a predetermined value .alpha., the piston is returned to a position in which only a necessary aspiration volume of the liquid sample can be aspirated. Since the maximum aspirating force of the pump is utilized during the aspiration, the aspirating operation can be carried out more quickly.