baber/WOPTO huggingface dataset:
Patent CA-2100059-A1 (CA)
Title: Structured abrasive article
Inventor: PIEPER JON R
IPC: B24D3/28
Filed: 1992-01-07
Abstract: Two major concerns associated with abrasive articles, particularly in fine grade articles, are loading and product consisten-cy. Loading is a problem caused by the filling of the spaces between abrasive grains with swarf, and the subsequent build-up of that material. If the abrasive article is made via a conventional process. the adhesive or binder system can flow before or during curing, thereby adversely affecting product consistency. This invention provides a coated abrasive article. The abrasive compo-sites have a predetermined shape, e.g., pyramidal. The dimensions of a given shape can be made substantially uniform. Further-more, the composites are disposed in a predetermined array. The coated abrasive article can be prepared by a method comprising the steps of: (1) introducing a slurry containing a mixture of a binder and a plurality of abrasive grains onto a production tool; (2) introducing a backing to the outer surface of the production tool such that the slurry wets one major surface of the backing to form an intermediate article; (3) at least partially curing or gelling the binder before the intermediate article departs from the ou-ter surface of the production tool to form a coated abrasive article; and (4) removing said coated abrasive article from the produc-tion tool.
Patent CA-2102995-A1 (CA)
Inventor: BEYAR MORDECHAI
IPC: A61B17/00
Filed: 1993-11-12
Abstract: A stapler device includes a manually grippable handle containing a drive and a trigger to activate the drive mechanism, a barrel fixed to the handle, a guide for holding a staple to be ejected and formed to accommodate a suture thread fixed to the staple, and an ejector driven by the drive through the barrel for ejecting a staple out through the guide into a bone to enable the suture, sa anchored to the bone, to be used for various medical operations.
Patent CA-2103520-A1 (CA)
Title: Binders for powder coatings
Inventor: BRINDOEPKE GERHARD
IPC: C09D5/46
Filed: 1993-08-06
Abstract: Binders for powder coatings comprising A) a solid unsat-urated polyester and B) a polyurethane comprising (meth)-acryloyl groups. These polyester-containing mixtures are distinguished by an improved blocking stability as compared with polyurethane alone.
Patent CA-2104839-A1 (CA)
Title: Arylazo chromoionophores
Inventor: BLOCZYNSKI MICHAEL L
IPC: C07D417/12
Filed: 1993-08-25
Abstract: Disclosed are arylazo chromoionophores characterized by the formula:   (See formula I) wherein X is hydrogen or a monovalent cation, Y is H or methoxy and R is a ringed aromatic organic structure which affects the optical absorption properties of the compounds. also disclosed is a method for the detection of calcium ion using these compounds.
Patent CA-2104949-A1 (CA)
Title: Dynamical system analyser
Inventor: BROOMHEAD DAVID S
IPC: G06F17/00
Filed: 1992-03-03
Abstract: A dynamical system analyser (10) incorporates a computer (22) to perform a singular value decom-position of a time series of signals from a nonlinear (possibly chaotic) dynamical system (14). Relatively low-noise singular vectors from the decomposition are loaded into a fi-nite impulse response filter (34).      The time series is formed into Tak-ens' vectors each of which is pro-jected onto each of the singular vec-tors by the filter (34). Each Takens' vector thereby provides the co-ordi-nates of a respective point on a tra-jectory of the system (14) in a phase space. A heuristic processor (44) is used to transform delayed co-ordi-nates by QR decomposition and least squares fitting so that they are fitted to non-delayed co-ordinates.      The heuristic processor (44) gen-erates a mathematical model to implement this transformation, which predicts future system states on the basis of respective current states. A trial system is em-ployed to generate like co-ordinates for transformation in the heuristic processor (44). This produces estimates of the trial sys-tem's future states predicted from the comparison system's model.  Alternatively, divergences between such estimates and actual behaviour may be obtained. As a further alternative, mathematical models derived by the analyser (10) from different dynamical systems may be compared.
Patent CA-2108015-A1 (CA)
Title: Polyurethane-containing sealant and coating
Inventor: EVANS ROBERT M
IPC: C08L95/00
Filed: 1992-04-10
Abstract: By way of summary, the present invention relates to waterborne coating compositions, methods of preparing such compositions, and methods of applying such compositions. More particularly, but without limitation, two compositions of the present invention comprise water-containing dispersions, suspensions or emulsions employing either (a) about 10 % to about 90 %, by weight of the final compositions, of a select urethane-urea dispersion; having incorporated therein either (b) about 10 % to about 90 %, by weight of the final composition, of a bituminous material, such as asphalt or (c) about 10 % to about 90 %, by weight of the final composition, of a (vinylic) latex material. An additional water-containing dispersion, suspension or emulsion is disclosed without limitation, as employing (a) about 5 % to about 10 % by weight of the final composition of a urethane-urea dispersion; (b) about 5 % to about 30 % by weight of the final composition of a (vinylic) latex material; and (c) about 10 % to about 90 %, by weight of the final composition, of a bituminous material, preferably asphalt.
Patent CA-2109307-A1 (CA)
Title: Gel stick antiperspirant compositions containing 2-oxazolidinone derivative and process for making them
Inventor: GARDLIK JOHN M
IPC: A61K8/86
Filed: 1992-04-24
Abstract: Antiperspirant compositions in the form of gel sticks, having acidic pH, and including an antiperspirant active, a gelling agent which comprises a dibenzylidene alditol, or mixture thereof, a hydroxy solvent for the gelling agent, and a 2-oxazolidinone derivative having a C1-C4 alkyl radical substituted at the 3 position of the heterocyclic ring are disclosed.
Patent CA-2109590-A1 (CA)
Title: Intraocular refractive lens
Inventor: WORST JAN G F
IPC: A61F2/16
Filed: 1992-05-19
Abstract: An intraocular lens surgically positioned in the anterior chamber and to be used in addition to the natural lens to correct the refraction. The lens is fixated by iris stromal support, comprising an optical portion of inner concave and outer convex shape and a side support portion which has one or more pairs of pincerlike extensions for holding a portion of iris tissue. The design provides safe clearance away from the vital structures both anteriorly and posteriorly. This technique of stromal iris support per-mits full pupil motility. Lack of any postoperative decentration allows the system to be used for myopia, hyperopia, presbyopia or astigmatism. A non-transparent, light-impermeable ring may be incorporated to prevent glare or edge effects. The lens provides high predictability of the precalculated optical power.
Patent CA-2110344-A1 (CA)
Title: Relaxation device
Inventor: MCKEANE PATRICK
IPC: A63B23/16
Filed: 1993-11-30
Abstract: An apparatus adapted for manual operation by an individual has a first plate and a second plate.  Each of the  plates  has  a  plurality  of  openings  which  are positioned  such  that,  when  the  plates  are  secured together, each opening in one plate is aligned with a respective opening in the second plate.  A ball bearing is provided for each pair of aligned openings, each of the ball bearings being positioned between the adjacent inner faces of the first and second plates.  The ball bearings are  rotationally mounted  in  each respective  pair  of aligned openings so that an individual may cause rotation of the ball bearings by passing their fingers across the ball bearings.
Patent CA-2113606-A1 (CA)
Inventor: MAEDA SHIGEKI
IPC: H03H15/00
Filed: 1994-01-17
Abstract: In a transversal filter for filtering an input signal (IN) into an output signal (OUT) in response to first through third tap gains (C-1, C0, C1), the transversal filter comprises a serial-parallel converter (40) for converting the input signal into first and second parallel converted signals. Connected to the serial-parallel converter, a delay circuit (10) has first through fourth taps (11-14) and comprises a plurality of delay units (16, 17) each of which is connected between two taps selected from the first through the fourth taps.  Each of the delay units provides twice a unit delay which is substantially equal to a reciprocal of an input data rate of the input signal. The first through the fourth taps of the delay circuit produce first through fourth tap signals, respectively. First and second calculation circuits (31, 32) carry out a calculation operation on three tap signals selected from the first through the fourth tap signals using the first through the third tap gains to produce first and second calculation result signals, respectively. Connected to the first and the second calculation circuits, a parallel-serial converter (35) couples the first and the second calculation result signals to produce the output signal.
Patent CA-2119658-A1 (CA)
Title: Multiple tread geometries for reduced tire tread noise
Inventor: WILLIAMS THOMAS A
IPC: G10K11/16
Filed: 1994-03-23
Abstract: ABSTRACT        A tire with reduced tread noise includes a tread having a plurality of base pitches arranged about the circumference  of  the  tire  in  at  least  one  pitch sequence.  Each base pitch in the pitch sequence has a tread geometry defined by a plurality of load supporting tread blocks separated or interrupted by grooves and/or sipes.   The base pitches in the pitch sequence have different tread geometries to reduce the noise of the tire on the road surface.  The grooves and/or sipes in each base pitch have common end points along the leading and trailing edges of the base pitches such that the grooves and/or sipes are continuous across the boundary between adjacent base pitches in the pitch sequence. Likewise, the grooves and/or sipes in each base pitch in one rib or row in the tire can have common end points along the edge between a base pitch in an adjacent rib or  row,  such  that  the  grooves  and/or  sipes  are continuous in the lateral direction as well.  The base pitches formed in this manner can be arranged in a particular  pitch  sequence  regardless  of:    (i) the individual  tread  geometry  of  each  base  pitch,  or (ii) the particular sequence of base pitches.  Moreover, the length of the base pitches in the circumferential direction can also be varied by known manners (e.g., random, sinusoidal) to further reduce the noise of the tire on a road surface.
Patent CA-2120557-A1 (CA)
Title: Method and apparatus for testing of integrated circuit chips
Inventor: ANSCHEL MORRIS
IPC: G01R31/26
Filed: 1994-04-05
Abstract: METHOD AND APPARATUS FOR TESTING OF INTEGRATED CIRCUIT CHIPS                       ABSTRACT            A method of testing  semi-conductor  chips  is  disclosed.   The individual  semiconductor  chips  have  I/O,  power,  and  ground contacts. In the method of the invention a chip test fixture system is  provided.  The  chip  test  fixture  system  has  contacts corresponding to the contacts on the semiconductor chip.   The carrier contacts have dendritic surfaces. The chip contacts are brought into electrically conductive contact with the conductor pads on the chip test fixture system. Test signal input vectors are applied to the inputs of the semiconductor chip, and output signal vectors are recovered from the semiconductor chip. After testing the chip is  removed from the substrate.
Patent CA-2120765-A1 (CA)
Title: Salts of polybenzazole monomers and their use
Inventor: ROSENBERG STEVEN
IPC: C07C215/80
Filed: 1992-08-27
Abstract: Salts that contain AA-PBZ monomer ions and BB-PBZ monomer ions is precipitated from an aqueous solution by contacting soluble salts of the monomers in an aqueous solution. The monomer salt is polymerized by ordinary techniques to form polybenzazole polymers without the need for devolatilization and with very accurate stoichiometric control.
Patent CA-2121458-A1 (CA)
Inventor: MCCAFFREY FELIM
IPC: E04H3/26
Filed: 1994-04-18
Abstract: A multipurpose arena has a platform providing a performing, playing or exhibition area which can be raised or lowered to allow for different configurations of banked seating. The raising and lowering is achieved by displacement of air in or out of an air vessel formed beneath the platform, either by a hull floating in a well which can be emptied of water by air pressure or scuttled, or by a skirt depending from the platform and sealed to underlying structure. If a skirt is used, space can be reclaimed within a structure inside the skirt which provides a reaction surface for the air pressure. The skirt may be sealed to the underlying structure by a water seal in a trough, or by sealing the lower edge of a telescoping skirt to the structure.
Patent CA-2127908-A1 (CA)
Title: Non-hydrogen evolving siloxane-based lubricant composition
Inventor: CROWE ANGELA M
IPC: B60C1/00
Filed: 1994-07-13
Abstract: ABSTRACT OF THE DISCLOSURE          A siloxane-based lubricant composition contains a mixture of nonreactive and reactive polydimethylsiloxanes, crosslinker and sufficient amounts of surfactant and water to provide an emulsion.  The composition contains no methyl hydrogen silane, dimethyl hydrogen silane and/or polymethyl hydrogen siloxane and therefore releases no hydrogen gas during storage or during use.
Patent CA-2128559-A1 (CA)
Title: Label having integrally formed differential release coupon and method of making
Inventor: DONALDSON DEAN S
IPC: G09F3/02
Filed: 1994-07-21
Abstract: A label is formed onto a packaging substrate and has a differential release coupon portion formed integrally therein. The packaging substrate is generally a label substrate such as a plastic, metal foil or paper as known in the art. The differential release coupon is defined by a tear outline consisting of a first arcuate section comprising a continuous radius cut; a second section comprising a plurality of overlapping, outwardly extending herringbone cuts defining a first taper; a third section comprising a plurality of straight cuts; a fourth section comprising overlapping vertical hash cuts defining a second taper; and transition cuts intermediate to the second and third sections and intermediate to the third and fourth sections.  The tear pattern results in a coupon which is easily released in a single motion, and which leaves the remaining label intact, preserving valuable product information.  The coupon is of a size and shape to facilitate redemption and handling by retail personnel.
Patent CA-2128772-A1 (CA)
Title: Highly water absorbed rice and method of producing the same, ultra-highly water absorbed rice and a variety of rice products utilizing the same
Inventor: ISHIDA YUKIO
IPC: A23L7/196
Filed: 1994-07-25
Abstract: ABSTRACT OF THE DISCLOSURE   The present invention relates to highly water absorbed rice produced by a process comprising a first step of turning immersed rice into water absorbed rice at a water content of 42 to 72 parts by weight to 100 parts by weight of rice by using hot water no less than 65°C and/or steam or pressurized steam, a second step of immersing the resulting water absorbed rice into cold water at 0 to 25°C, preferably 5 to 15°C while the rice is in the state where the temperature of the rice is nearly maintained at the temperature of the hot water, and/or steam and the like for use in the above heating of the rice, to generate water absorbed rice at a water content of 50 to 85 parts by weight of water to 100 parts by weight of raw rice, and a third step of charging the water absorbed rice into warm water at 25 to 60°C, preferably 30 to 55°C to adjust the water content to 75 to 110 parts by weight of water to 100 parts by weight of raw rice.        In accordance with the present invention, the generation of turbidity due to micro-particles of starch can be successfully  reduced by immediately immersing the rice from the first step into cold water at a temperature of 0 to 25°C, preferably 5 to 15°C at the second step while the rice maintains the heating temperature of the first step.
Patent CA-2129034-A1 (CA)
Title: Mycobacterial species-specific reporter mycobacteriophages
Inventor: JACOBS WILLIAM R JR
IPC: C12Q1/68
Filed: 1993-02-02
Abstract: This invention relates to mycobacterial species-specific reporter mycobacteriophages (reporter mycobacteriophages), methods of producing such reporter mycobacteriophages and the use of such reporter mycobacteriophages for the rapid diagnosis of mycobacterial infection and the assessment of drug susceptibilities of mycobacterial strains in clinical samples. In particular, this invention is directed to the production and use of luciferase reporter mycobacteriophages to diagnose tuberculosis. The mycobacterial species-specific reporter mycobacteriophages comprise mycobacterial species-specific mycobacteriophages which contain reporter genes and transcriptional promoters therein. When the reporter mycobacteriophages are incubated with clinical samples which may contain the mycobacteria of interest, the gene product of the reporter genes will be expressed if the sample contains the mycobacteria of interest, thereby diagnosing mycobacterial infection.
Patent CA-2129998-A1 (CA)
Title: Improved amino acid solutions for treatment of peritoneal dialysis patients
Inventor: MARTIS LEO
IPC: A61P13/00
Filed: 1993-12-10
Abstract: The present invention provides a dialysis solution that contains amino acids for treating and/or preventing malnutrition in a peritoneal dialysis patient. The amino acid composition is optimized to mininxize metabolic acidosis while normalizing amino acid plasma profile levels.
Patent CA-2132373-A1 (CA)
Title: Container
Inventor: HINTERMEIER HEINRICH
IPC: B65D88/74
Filed: 1994-09-19
Abstract: The invention pertains to a novel design of a container consisting of wall elements bordering a container interior space which form at least one front element, two side elements, at least one rear element, at least one cover element, and at least one bottom element, and which are detachably connected to one another by connecting pieces.
Patent CA-2132771-A1 (CA)
Title: Biaryl urea and related compounds
Inventor: ATWAL KARNAIL
IPC: C07C323/44
Filed: 1994-09-23
Abstract: Abstract BIARYL UREA AND RELATED COMPOUNDS Compounds having the formula I and pharmaceutically acceptable salts thereof wherein X is a single bond, O, CO, S, NH or N(lower alkyl); Y is O, S or NCN; and R1 to R5 are as defined herein. These compounds have potassium channel activating activity and are useful, therefore for example, as cardiovascular agents.
Patent CA-2139617-A1 (CA)
Title: Cosmetic or dermatologic containing a pseudo-latex formed of particules of an homopolymer u.v. filter
Inventor: MOUGIN NATHALIE
IPC: A61K8/00
Filed: 1995-01-05
Abstract: Cosmetic or dermatological compsn. for protecting the skin or a keratinic substrate against the undesirable effects of UV radiation, comprising at least one pseudo-latex or particles with an ave. dia. of 10-400 nm of a filter homopolymer comprised of repeating units of formula (I) in which X = an aromatic gp. exhibiting UV absorption in the wavelength range 280-400 nm.
Patent CA-2143079-A1 (CA)
Title: Optimized electronic operation of digital micromirror devices
Inventor: GALE RICHARD O
IPC: G02B26/08
Filed: 1995-02-21
Abstract: A method for controlling a digital micromirror device resulting in decreased mechanical stress, longer device lifetimes, decreased incidence of spontaneous bit reset, and increased pulse-width modulation accuracy. To reduce the device stress, the bias voltage applied to the mirror may be reduced after the mirror has been latched. To prevent premature mirror changes, the address electrode bias voltage may be reduced after the mirror is driven to the desired position. To ensure that the mirror returns to the neutral position during reset, the mirror bias voltage may be raised from ground potential to approximately halfway between the two addressing voltages during the reset period. To reduce the effects of hinge memory and to ensure that the mirror rotates toward the proper address electrode, the mirror bias voltage may be gradually increased to allow the mirror time to rotate towards the proper address electrode.
Patent CA-2145836-A1 (CA)
Title: Aqueous process for preparing low molecular weight polymers
Inventor: KIRK THOMAS C
IPC: C08F220/04
Filed: 1995-03-29
Abstract: ABSTRACT OF THE DISCLOSURE The present invention provides an efficient aqueous polymerization process for preparing a water soluble polymer product having a molecular weight of less than 30,000. The polymer product is formed from about 3 to about 50 weight percent of at least one monoethylenically unsaturated dicarboxylic acid monomer, from about 50 to about 97 weight percent of at least one monoethylenically unsaturated monocarboxylic acid monomer, and from 0 to about 40 weight percent of one or more carboxyl-free monoethylenically unsaturated monomers. The process of the present invention may be run as a batch or continuous process. The process uses at least one chain transfer agent and is conducted at an aqueous solution pH of about 3 or less to keep the molecular weight of the polymer product below 30,000. The polymer product produced by the process of the present invention is useful as anadditive in detergents, cleaning formulations, and water circulating systems.
Patent CA-2145888-A1 (CA)
Title: Method and apparatus for packaging groups of articles
Inventor: ODENTHAL HEINZ F
IPC: B65B17/02
Filed: 1995-03-30
Abstract: A web withdrawn from a coil is split to form tray-forming and head-encircling strips which are passed vertically across a path of a group of articles so that the strips are entrained by the group and pass under and over the group to be connected together at a rear portion into closed bands. The tray-forming band projects beyond the bottom edge of the group and can be folded over onto the articles to form the tray. The feed conveyor advances the group of articles to the packaging station from which the group of articles is transferred to the discharge conveyor operating at a right angle to the feed conveyor. This provides for a simple and effective packaging system and a reliable tight packaging  of groups of articles independent of manufacturing tolerances in the size of the individual articles.
Patent CA-2146256-A1 (CA)
Title: Inhibition of microbial growth in swimming pools and spas
Inventor: AUSTIN PETER WILLIAM
IPC: C07D233/58
Filed: 1993-09-29
Abstract: The use of oligomeric imidazolium, pyrazolium and triazolium salts of formula (I) as swimming pool sanitizer having im-proved compatibility with chlorine. Bisimidazolium salts are preferred.
Patent CA-2146732-A1 (CA)
Inventor: GRUENBACHER HERBERT
IPC: C21B3/02
Filed: 1995-04-10
Abstract: In a process for producing an iron melt, iron ore is reduced to sponge iron in a direct reduction zone. The sponge iron is melted in a meltdown gasifying zone while supplying carbon-containing material under gasification of the carbon-containing material to reducing gas and under formation of a slag. The reducing gas is injected into the direct reduction zone, is reacted there and is drawn off as a top gas. The reducing gas and/or the top gas is subjected to gas scrubbing and the sludges separated during scrubbing are admixed with binder and coal dust and subsequently are agglomerated. In order to be able to supply back to the direct reduction process in large amounts sludges incurring in the direct reduction of iron ore without disturbing the process course of the direct reduction in any way, the sludges separated during scrubbing are dehydrated to a residual moisture content prior to being further treated, coal dust and, as a binder, quick lime are then admixed to the sludges, the sludges subsequently are granulated and the granulate thus formed is supplied to the meltdown gasifying zone while increasing the basicity of the slag to a maximum of 1.25.