baber/WOPTO huggingface dataset:
Patent CA-2040966-C (CA)
Title: Automatic dry pet food dispenser
Inventor: LADER ERNEST A
IPC: A01K5/02
Filed: 1991-04-23
Granted: 1994-07-26
Abstract: The invention concerns a device that supplies a measured amount of dry pet food  at specific timed intervals once a day for up to three days.  Through timed mechanical action, the device releases dry pet food from three separate food compartments.  The design accepts additional food compartments to increase the number of days over which food will be dispensed.
Patent CA-2041626-C (CA)
Title: Scooping apparatus, vehicle and coupling plate therefor
Inventor: VAN DALFSEN RUDOLF HENDRIK
IPC: B60P3/00
Filed: 1991-05-01
Granted: 2002-08-06
Abstract: The invention relates to a scooping apparatus to ba coupled with a vehicle, said apparatus comprising: a carrying frame to be coupled with said vehicle by means of coupling means, a substantially cylindrical cage rotatably carried by said frame, said cage comprising: two end walls rotatably connected with said frame by means of rotation bearings, two cage parts carried by said end walls, namely a scooping part having a scooping edge, and a lid part, said two cage parts being relatively movable between a closed position, in which they from the cage, and an open position and one of which has at least one opening, in such a way that that cage part has a substantial opening degree, first driving means for rotatably driving at least one of said cage parts; and second driving means for moving the cage parts between the closed position and the open position.    The scooping apparatus according to the invention is characterized in that the two cage parts are movable in coaxial relation with the cylinder axis of the cage.
Patent CA-2043626-C (CA)
Title: Recovery of tritium and deuterium from their oxides and intermetallic compound useful therein
Inventor: BOFFITO CLAUDIO
IPC: G21F9/02
Filed: 1991-05-31
Granted: 2000-08-01
Abstract: There is described a process for the recovery of deuterium and tritium from their oxides, such has heavy water and tritiated water, comprising the steps of reacting the oxides of deuterium and tritium with an intermetallic compound having a formula ZrM2, where M is a transition metal chosen from the group comprising Cr, Mn, Fe, Co and Ni such that it sorbs oxygen and released deuterium and tritium. The reaction preferably occurs by contacting the impure gas with the ZrM2 alloy as defined above, in the form of a compressed powder. A preferred alloy is the intermetallic ternary compound ZrMnFe.
Patent CA-2043914-C (CA)
Title: Printing compositions utilizing esterified vegetable oil fatty acid as solvent
Inventor: MILLER MICHAEL JAMES
IPC: C09D11/02
Filed: 1991-06-05
Granted: 1996-04-16
Abstract: The present invention is directed to a printing composition, in particular, a paste printing ink vehicle for effecting the setting of a paste printing ink by penetration into a substrate, the vehicle utilizing a vegetable oil fatty acid esterified with a simple alcohol or glycol as a solvent.  The use of the esterified fatty acid as a solvent in the printing ink vehicle enables the production of novel petroleum distillate free paste printing inks having characteristics substantially similar to that of conventional petroleum distillate based printing inks.
Patent CA-2046283-C (CA)
Inventor: SCHER HERBERT B
IPC: A01N25/28
Filed: 1990-01-31
Granted: 1999-09-21
Abstract: Microcapsule formulations are combined with emulsions or particle dispersions in a single-package formulation which is storage-stable and provides substantially the full efficacy of each of the two forms as if applied individually. The single-package formulation is suspension having two dispersed phases -- the first being an active species encapsulated in a shell of inert polymeric diffusion-limiting material (i.e.) a microcapsule), and the second being an active species in water-insoluble form with no diffusion-limiting barrier at its surface. An appropriate suspension system is included to prevent the dispersed phases from agglomerating within themselves and with each other. The invention is useful in combining two different active ingredients as well as in combining immediate-delivery and delayed-delivery forms of the same active ingredient.      The invention may for example involve combining a biocide with an activity modifier such as a safener, with the effect of lowering the needed amount of one or the other by removing it to a separate phase. In certain cases, a unique combination of surface-active agents maintains the phases in suspension.
Patent CA-2054006-C (CA)
Title: Automatic food dispenser
Inventor: ALESSI MARIO
IPC: G07F9/10
Filed: 1991-10-23
Granted: 2001-12-25
Abstract: An automatic food dispenser for dispensing hot instant meals, particularly pizza, includes a refrigeration chamber (8) and at least one oven (31). The frozen instant meals are stored in tubular magazines (11) which are disposed on a circle within a rotatable drum-type storage container (10).      The oven (31) includes a horizontally extendable push frame (32) and a push front (33) which forms the oven door. A cooking tray (39) is mounted on the push frame (32) to be raised and lowered in such a manner that, when the oven (31) is opened, the cooking tray is automatically moved upward from a lowered cooking position within the cooking chamber (41) into a loading position and, once the push frame (32) is fully extended, further upward into a discharge position within a discharge chamber (42) accessible to the operator.      An instant meal selected by the operator is removed in its frozen state by means of a removal device provided at the underside of the refrigeration chamber (12) from the cor-responding tubular magazine (11) and is placed onto the cooking tray (39) which is in the loading position. Then the push front (33) closes, causing the cooking tray (39) to be automatically moved back into the cooking chamber (41) of the oven (31). At the end of the required thawing and cooking time, the hot instant meal is transported out of the oven 31 by means of the movable cooking tray (39) directly into the discharge chamber (42).
Patent CA-2059488-C (CA)
Title: Method for cleaning or extracting hydrocarbon based substances
Inventor: FANDRICK ARCHIE
IPC: C09K17/00
Filed: 1992-01-16
Granted: 1999-08-24
Abstract: A method for cleaning hydrocarbon based grease from oven surfaces or extracting hydrocarbons from soil, sand clay and cloth uses a composition comprising an aqueous solution of hydrogen peroxide and an alkali metal hydroxide.
Patent CA-2062237-C (CA)
Title: Varying tone securing document
Inventor: MOWRY WILLIAM H JR
IPC: B41M3/14
Filed: 1992-03-03
Granted: 1997-03-18
Abstract: An improved security document which protects documents from copying on color copying machines.  The document has cancellation terms and background pattern in two tones.  If the copier is adjusted to obscure the cancellation term on reproduced copies at one tone, the cancellation at the other tone will appear.  In an alternative embodiment, the density of the cancellation term and the background pattern vary across the face of the document.  In this case, the cancellation term will appear somewhere on the copy no matter what copier adjustments are made.
Patent CA-2063545-C (CA)
Inventor: ANGER STEVEN J
IPC: G01F1/7086
Filed: 1992-03-19
Granted: 1999-01-19
Abstract: L'invention est une méthode de détermination du débit d'un écoulement visqueux dans laquelle on fait passer l'écoulement fluide dans le champ de vision d'un dispositif d'imagerie électronique qui produit des signaux représentant des images de l'écoulement à des instants successifs t0, t1, ...tn. Les signaux représentant une image de l'écoulement à un premier instant ti sont stockées dans une première mémoire, alors que les signaux représentant une image de l'écoulement à un second instant tj sont stockées dans une seconde mémoire. Le temps tj - ti est plus court que le temps nécessaire à un point de l'écoulement fluide pour traverser le champ de vision du dispositif d'imagerie. Les signaux stockés sont analysés pour produire des signaux de largeur W(y) qui représentent la largeur de l'écoulement fluide en fonction de y, où y est une coordonnée dans la direction de l'écoulement qui est utilisée dans les deux images stockées de l'écoulement. Un signal représentant le débit d'écoulement est dérivé des signaux de largeur W(y) et de signaux représentant au moins les coordonnées y1 et y2 du point commun au deux images. La méthode de l'invention permet de surveiller le débit volumétrique de façon continue en tenant compte des fluctuations de largeur de l'écoulement.
Patent CA-2065472-C (CA)
Title: Primer composition
Inventor: IKEMURA KUNIO
IPC: C08L57/10
Filed: 1992-04-07
Granted: 2007-03-13
Abstract: The present invention provides a primer composition comprising (i) 0.5 - 90% by weight of water, (ii) 5 - 90% by weight of a polymerizable compound having a hydroxyl group, (iii) 0.1 - 90% by weight of a polymerizable compound having an acidic group, and (iv) 0.01 - 30% by weight of a curing agent. When dental adhesive restorative materials such as dental resin cements, composite resins, PMMA resins and the like are made to adhere directly or through bonding agents to substrates such as vital hard tissues, especially enamel or dentin of natural teeth, glass ionomer cements and the like, the primer composition is able to impart a strong and durable adhesive property between both without treating said substrates with an acid and the like.
Patent CA-2067071-C (CA)
Title: Casing shut-in valve system
Inventor: DOLLISON WILLIAM W
IPC: E21B34/14
Filed: 1992-04-24
Granted: 2001-12-25
Abstract: A casing shut-in valve system having a flapper valve assembly and a shift head assembly; the flapper valve assembly having an upper body member, lower body member, flow sleeve, valve seat sleeve member, flapper, flapper hinge assembly, and a plurality of spring strut assemblies disposed on opposite sides of the flapper hinge assembly; the shift head assembly having key housing with bit sub rotatably mounted in bearing, a plurality of outwardly biased shift keys, and a load equalizer plate at each end of the key housing; the shift head assembly being adapted to selectively open or close the valve by engaging and moving the flow sleeve between defined upper and lower positions, thereby controlling the movement of flapper through an angle of rotation that is less than 90 degrees, and preferably about 45 degrees.
Patent CA-2068324-C (CA)
Title: Metal-peptide compositions and methods for stimulating hair growth
Inventor: PICKART LOREN R
IPC: C07K5/08
Filed: 1990-11-13
Granted: 2001-01-16
Abstract: There is provided metal-peptide composition for use as active therapeutic substances, and for use in the manufacture of medicaments for stimulating hair growth in warm-blooded animals. Methods for stimulating the growth of hair in warm-blooded animals are also disclosed. The methods utilize a stimulating effective amount of the metal-peptide composition or a pharmaceutical preparation containing the metal-peptide composition.
Patent CA-2078034-C (CA)
Title: a non-handle type tool chuck
Inventor: NAKAMURA DAIJIRO
IPC: B23B31/173
Filed: 1992-09-11
Granted: 1999-11-23
Abstract: In construction of a handle less tool chuck in which clamping torque is transmitted from a manually rotatable operation sleeve on a chuck body to tool clamping jaws in the chuck body via a power transmission unit including a cycloidal gear arrangement, an elastic impulsion sleeve is inserted between the operation sleeve and the chuck body so that elastic compressive deformation of the impulsion sleeve at forced rotation of the operation sleeve causes impulsive meshing engagement in the cycloidal gear arrangement to pose impulsive clamping force on a tool clamped by the jaws.      Resultant clamping forces is twice or more as large as that provided by the conventional cycloidal gear arrangement only.
Patent CA-2078630-C (CA)
Title: Denture cleansing device
Inventor: FLORJANCIC PETER
IPC: A61C17/02
Filed: 1992-09-18
Granted: 1995-12-19
Abstract: In order to create a denture cleansing device that completely cleanses one or two dentures in a short time in running water,  and that is easy to handle and store and protects the dentures when dropped, there is described a liquid holding container with a lockable lid connected thereto by means of a hinge, the lid having a filling aperture formed therein, vertical and separation ribs to space the dentures in a vertically upright storage position.  The interior inner of the container is divided by a truncated separation wall running parallel to the rear wall of the container into a denture-storing  chamber  and  an overflow with  an  outlet opening.
Patent CA-2085272-C (CA)
Title: Partial-response-channel precoding
Inventor: WEI LEE-FANG
IPC: H04N7/015
Filed: 1992-12-14
Granted: 1998-02-10
Abstract: Digital data is transmitted over partial-response channels using a precoding technique which allows for the use of a wide variety of transmit constellations.  A sequence of signal points is selected from a predetermined base constellation (FIG. 5) meeting particular criteria. A so-called combined signal point is developed for a present symbol interval by a) selecting (in 9511) a signal point from the base constellation as a function of input bits associated with the present symbol interval and b) combining the signal point thus selected (in 9514) with afeedback signal (9513) which is a function of one or more combined signal pointsthat were developed for previous symbol intervals, that function being determined by the characteristic the partial-response channel. A transmit signal which represents the combined signal points is then provided (by 19). In one implementation, the processing steps are performed explicitly using an integrated precoder/constellation mapper (951). In another implementation those steps are performed implicitly using table look-up (FIG. 13).
Patent CA-2087097-C (CA)
Title: Application modularity in telecommunications exchanges
Inventor: RAMSTROEM SUNE
IPC: H04Q11/04
Filed: 1992-06-16
Granted: 2001-10-09
Abstract: A software architecture for use in program controlled telecommunications switching exchanges in which application modules (73) are employed to provide services to users of a particular communications application. Resource modules (74) provide specific functional elements of communications services to the application modules (73) by having access to and control over the exchange hardware. Network protocols (75) provide communication between the application modules (73) within the exchange and.interfaces provide communications between the resource modules (74) and between application modules (73) and resource modules (74) within the exchange.
Patent CA-2087887-C (CA)
Inventor: LEE JING MING
IPC: C01B3/34
Filed: 1993-01-22
Granted: 2003-03-18
Abstract: An integrated process for making methanol and ammonia from a hydrocarbon feed stock and air is disclosed. An air separation unit is used to produce substantially pure oxygen and nitrogen gas streams. The oxygen gas is used in the secondary reformer to increase the operating pressure of the reformers so that compression to methanol synthesis pressure may be done by a single stage compressor. The nitrogen gas is used to remove carbon oxides impurities from a ammonia synthesis feed stream in a nitrogen wash unit in addition to supplying the nitrogen reactant in the ammonia synthesis gas. Use of nitrogen wash obviates the need for steam shift and methanation reactions used in prior art processes.
Patent CA-2096620-C (CA)
Inventor: CAMPBELL BARBARA ELLEN
IPC: G07B17/00
Filed: 1993-05-19
Granted: 2001-07-17
Abstract: A carrier management system includes a scale for weighing parcels to be shipped, a computer connecting to receive data from the scale related to the weight of a parcel thereon, and a keyboard enabling operator input to the computer. The keyboard has a plurality of keys including a plurality of selection keys corresponding to separate ones or groups of the carriers and/or classes. The computer stores shipment charge data for a plurality of carriers and/or classes, on the basis of weight data from the scale. A second memory receives and stores weight range data and handling charge data from the keyboard, corresponding to handling charges applied to parcels for which selected classes of service are selected, and in accordance with the weight ranges. The computer is responsive to operation of the selection keys for applying handling charges stored in the second memory to any class of service to which they are applicable.
Patent CA-2099133-C (CA)
Title: Appareil auditif supersonique a conduction osseuse et methode d'utilisation
Inventor: LENHARDT MARTIN L
IPC: G01S15/00
Filed: 1990-12-27
Granted: 2000-09-19
Abstract: Cette invention concerne une prothèse auditive à conduction osseuse des ultra-sons qui reçoit les fréquences audiométriques classiques et les transforme en fréquences ultrasonores pour qu'elles parviennent au système sensoriel du cerveau humain par conduction osseuse des vibrations. On pense que l'audition utilise des voies de communication vers le cerveau qu'elle n'utilise pas normalement. Ces autres voies de communication ne se détériorent pratiquement avec l'âge comme le font les voies normales d'audition. Les fréquences ultrasonores captées et conduites par les os sont reconnues comme étant des fréquences situées dans la plage audiométrique des fréquences.
Patent CA-2101672-C (CA)
Inventor: MARCK ADAM T
IPC: E04C3/29
Filed: 1993-07-30
Granted: 1997-12-23
Abstract: The present invention relates to frames for use on windows and glass doors and methods of making same, and particularly, methods of making a thermally broken window or door frame made from two frame members that are connected by an insulating member. Existing methods of making thermally broken hollow  frame members  from two  frame members either are complex and time consuming and complex or present difficulties in aligning the two frame members prior to pouring the thermal barrier material. The present invention provides the use of a guide to hold the frame members and am elastomersic gasket which forces the frame members tightly inot the guide and seals the liquid-receiving channel. The frame members can then be inverted in the guide and the process repeated to produce a hollow thermally broken frame.
Patent CA-2103116-C (CA)
Title: Production of para-xylene by selective methylation of toluene with methyl halides
Inventor: RATNANI KEBIR
IPC: C07C2/86
Filed: 1993-11-15
Granted: 2000-03-07
Abstract: The selective methylation of toluene to produce para-xylene is effected by reacting toluene with a methyl halide at a temperature ranging from about 100 to about 500°C and a pressure ranging from about 1 to about 10 atmospheres, in the presence of a shape-selective zeolite catalyst in protonated form having a Si/Al ratio of at least about 25, the zeolite catalyst being either unmodified or modified with a heteropoly acid.
Patent CA-2105868-C (CA)
Inventor: WIKLUND MARTIN
IPC: B27B1/00
Filed: 1992-03-17
Granted: 2003-08-19
Abstract: The invention relates to a method of sawing a log in order to provide a high yield of vertical-grained pieces of lumber. According to the inven-tion, this is achieved by sawing from the log not on-ly pieces of lumber (B; D; F, H, J; L) which are triangular or sector-shaped in cross-section but also essentially plane-parallel boards (A, C, E, G, T, K) between adjacent pairs of the pieces which are tri-angular or sector-shaped in cross-section.
Patent CA-2125819-C (CA)
Inventor: SATAKE SATORU
IPC: B02B3/04
Filed: 1994-06-14
Granted: 2000-02-08
Abstract: An abrasive type vertical grain milling machine comprises a perforated cylindrical body which serves to define an outer periphery of a grain milling chamber and which has a plurality of vertically arranged resistance members projected radially into the grain milling chamber so as to impart resistances to motions of the grains in a circumferential direction of an abrasive type roll assembly, an amount of projections of each of the resistance members being made to be adjustable, and further has projection amount adjusting mechanisms for adjusting independently the respective amounts of projection in the radial direction of the plural resistance members located in different vertical positions, and therefore, it is possible to adjust independently the resistance imparted to the motions of the grains within the grain milling chamber in each of the upstream-side region and downstream-side region of the grain milling chamber.
Patent CA-2138740-C (CA)
Title: Mixtures of alkylated aromatic amines and phenothiazines
Inventor: EVANS SAMUEL
IPC: C07D279/20
Filed: 1994-12-21
Granted: 2006-06-27
Abstract: The invention relates to reaction products suitable as antioxidants which are substantially liquid at room temperature and which are obtained by the reaction of olefins with mixtures of diphenylamines and phenothiazines which may be alkylated. These products are obtainable by reacting an olefin of formula R1R2C=CHR3     (I) with a mixture of compounds of formulae II and III (see formula II and III) in the presence of an acid catalyst, wherein R1 is hydrogen, C1-C25alkyl or phenyl, R2 is C1-C25alkyl, benzyl or phenyl, R3 is hydrogen or C1-C12alkyl, R4, R*4, R5 and R*5 are each independently of one another hydrogen, C1-C25alkyl, C5-C12cycloalkyl, benzyl, .alpha.-methylbenzyl or .alpha.,.alpha.-dimethylbenzyl, and R6 and R*6 are each independently of the other hydrogen, C1-C18alkyl, C3-C4alkenyl, benzyl or a radical of formula -CH(R9)-CH(R10)-S-R11, and R7 and R8 are hydrogen, or together form a divalent group (see formula IV) R9 and R10 are each independently of the other hydrogen, phenyl or C1-C12alkyl, R11 is C4-C18alkyl, phenyl or -(CH2)a-CO-OR12, a is 1 or 2, and R12 is C1-C18alkyl.
Patent CA-2139212-C (CA)
Inventor: BALES MICHAEL E
IPC: F24C15/02
Filed: 1994-12-28
Granted: 2003-01-14
Abstract: An oven door having a localized interior surface area exposed to high oven temperature and susceptible to the generation of excessive temperature at an adjacent outside surface area, is provided with a heat collector plate fastened over the localized interior surface area with fastening means in heat transfer relationship with said heat collecting plate and with a heat dissipator attached outside of the oven door remotely from said adjacent outside surface area, for dissipating heat to ambient atmosphere.
Patent CA-2153161-C (CA)
Inventor: WEAVER LAURA BAUERLE
IPC: C08G18/38
Filed: 1993-12-09
Granted: 2004-06-22
Abstract: Certain fatty acid amides can be included in plastic skin clad polyurethane formulations to increase adhesion between the plastic skin and the polyurethane. These adhesion improvers can decrease or prevent blister formation in plastic skin clad polyurethanes. Additionaly, the adhesion improvers can compatibilize certain extenders with base polyols and improve mold release properties.
Patent CA-2155088-C (CA)
Title: Adhesive composition for fiber
Inventor: TOUKAIRIN HIROMITU
IPC: D06M101/16
Filed: 1995-07-31
Granted: 2005-04-12
Abstract: Disclosed are adhesive compositions for rubber and fiber which make synthetic fibers highly adhesive to rubber even when a reduced amount of the composition is applied to the fibers; rubber-reinforcing synthetic fibers coated with the adhesive composition to have improved adhesiveness to rubber while having the intrinsic characteristics of the synthetic fibers themselves; and fiber-reinforced rubber structures where the rubber has been reinforced by the rubber-reinforcing synthetic fibers. The adhesive composition contains, in the adhesive matrix component, a silicate compound comprising silicon and magnesium as the essential constitutive elements at a ratio by weight of silicon/magnesium of from 1/0.1 to 1/1Ø Preferably, the 1 % aqueous dispersion of the silicate compound has a transmittance of 50 % or more and/or the 2 % aqueous dispersion of the silicate compound has a thixotropy index of from 2.0 to 10Ø The silicate compound is preferably a smectite.