baber/WOPTO huggingface dataset:
Patent CA-2146698-A1 (CA)
Title: Multiple-level occulting using a mask buffer
Inventor: SODERBERG BRIAN T
IPC: G06T15/40
Filed: 1995-04-10
Abstract: MULTIPLE-LEVEL OCCULTING USING A MASK BUFFER                      ABSTRACT Occulting apparatus for use with an image generator that provides for multiple-level occulting of image data. The occulting apparatus comprises a mask buffer and control logic for processing image data to construct and store an obscurance mask in the mask buffer. Foreground entities contained in the image data are logically ORed into the mask buffer until the entities extend beyond a predefined range from a predetermined image viewpoint. Thereafter, the mask is used by the control logic to reject entities contained in subsequently processed image data that are fully obscured by the foreground entities comprising the obscurance mask. The control logic includes an obscurance manager, a region processor, an object processor, a polygon processor, and insertion logic. The obscurance manager is a controller for building and applying the obscurance mask to the image data. The region, object, and polygon processors respectively process regions, objects, and polygons in the image to determine if they are obscured, reject obscured entities, and transmits unobscured entities to subsequent processors. The insertion logic processes unobscured polygons and applies them to the obscurance manager for storage and use by the respective region, object, and polygon processors. The present invention performs real-time occulting of all objects in an image scene, whether they are fixed or moving. Hidden area modules (large groups of objects in a geographic region), single objects, polygons, and pixels are sequentially filtered-out in real-time. The mask buffer and control logic provide three levels of occulting. A hybrid Z-buffer 51 provides pixel-level occulting. The present invention rejects regions, objects, and polygons, early in the graphics processing pipeline to reduce the number of required pixel processing computational elements in the image generator. By rendering objects generally from front to back, entities that are completely hidden by nearer objects can be detected and discarded before tiling and pixel processing.
Patent CA-2147786-A1 (CA)
Title: Fluid purification - continuous oxygenation of photocatalytic reactor
Inventor: RITCHIE DAVID G
IPC: B01J19/12
Filed: 1995-04-25
Abstract: An improved purifier for fluids, removes, reduces or detoxifies organic pollutants therefrom by constantly replenishing high oxygen concentrations in the fluid, and causing the oxygenated fluid to contact surfaces of a photoreactive semiconductor material, such as anatase, titanium dioxide or other photoreactive semiconductor material, in suspension or bonded to a fixed stationary substrate, in the presence of light of a wavelength that will activate the material.
Patent CA-2148093-A1 (CA)
Title: Elastomer bed
Inventor: DE GREGORIA ANTHONY J
IPC: F28F21/06
Filed: 1993-10-27
Abstract: 2148093 9410517 PCTABS00032 A high performance, low cost, regenerator/heat exchanger matrix or bed. The bed consists of numerous stretched elastomer sheets (26) separated by spacers (28) and stacked. The resulting matrix is of the parallel plate type with high porosity, and narrow, uniform unobstructed channels (25). The bed is ideal for near room temperature regenerator applications. The bed may also be used to pump heat or refrigerate, when fitted with a mechanism which allows the stretch of the elastomer sheets to be rapidly increased and decreased periodically.
Patent CA-2148583-A1 (CA)
Title: Viscoelastic Surfactant Based Foam Fluids
Inventor: BONEKAMP JEFFREY E
IPC: C09K23/00
Filed: 1992-11-04
Abstract: A foam-fluid composition for use in foam fracture applications and foam slurry transport comprises a thickening amount of a viscoelastic surfactant composition, a functionally effective amount of a surfactant composition capable of forming a foam, and an aqueous liquid. Foam-fluid formulations are easily prepared, reusable, shear stable, easily pumped and form stable foams over a wide temperature range and exhibit high viscosities even at relatively high temperatures.
Patent CA-2149139-A1 (CA)
Title: Biodegradable compositions comprising starch
Inventor: GEORGE ERIC R
IPC: C08L23/26
Filed: 1993-11-23
Abstract: There is provided a biodegradable composition as obtained from a melt comprising converted starch, a plasticizer and at least one member selected from alkenol homopolymers and/or alkenol copolymers which are combined under conditions sufficient to ensure uniform melt formation, in which the at least one member is present in the composition at a concentration of from 10 to 200 parts per 100 parts of dry converted starch. The invention further relates to methods of making the composition, and to article made from said composition.
Patent CA-2150016-A1 (CA)
Inventor: CHEN YUHPYNG L
IPC: A61P25/26
Filed: 1993-11-12
Abstract: The compounds of the formulawherein R1, R2, R3, R4, R5 and R6 are as defined herein, are useful in the treatment of stress-related and other diseases. These compounds have corticotropin-releasing factor antagonist activity and as such are of use in the treatment of stress and anxiety related, and other disorders.
Patent CA-2151837-A1 (CA)
Title: Fastener with thread lock
Inventor: STENCEL EDGAR L
IPC: B21H3/02
Filed: 1993-12-13
Abstract: A threaded fastener (12) that self locks as it is tightened to a fastened object (14). The thread (30) includes one or more portions (48) that are shifted, resulting in one or more discontinuities in the thread (30). Each shifted portion (48) of thread (30) is fully formed at the discontinuity. The shifted portions (48) will deform a relatively softer female thread, causing the deformed thread to move up and over the end faces (56) of the shifted portions (48) and to pack up in front of the end faces (56) to prevent any significant loosening of the connection.
Patent CA-2152180-A1 (CA)
Title: Phase locked loop synchronization circuit and method
Inventor: KOSIEC JEANNIE HAN
IPC: H03L3/00
Filed: 1994-10-14
Abstract: An improved phase synchronization circuit (301) and method therefor for a phase locked loop (300). Each of a divided reference frequency signal (206) and a feedback signal (209) is held in a predetermined state. The divided reference frequency signal (206) is enabled responsive to the phase of a reference frequency signal (115). A phase relationship between the reference frequency signal (115) and an output frequency signal (116 or 117) is determined. The feedback signal (209) is enabled responsive to enabling the divided reference frequency signal (206) and the determined phase relationship. The present invention advantageously provides a rapid and accurate phase synchronization for the PLL (300) with minimum additional hardware and without introducing phase error into the PLL (300).
Patent CA-2156284-A1 (CA)
Title: Masking tape with stiffened edge and method of gasket masking
Inventor: COX SHEILA F
IPC: C09J7/02
Filed: 1994-02-24
Abstract: A masking tape is provided that is suitable for insertion under many moldings and gaskets which not only masks the molding or gasket but also facilitates refinishing under at least a portion of the molding or gasket. The masking tape is constructed to include a longitudinal non-ahesive portion and a longitudinal adhesive portion, wherein the nonadhesive portion is stiffer than the adhesive portion and is sufficiently stiff to facilitate easy insertion of the non-adhesive portion beneath at least a portion of the molding or gasket to be masked while the adhesive portion is sufficiently flexible to permit the wrapping thereof around the molding or gasket. The stiffened portion advantageously provides a dual purpose of facilitating the easy insertion of the non-adhesive portion beneath the molding or gasket and creating a lever action during application between the molding or gasket and the wall or panel to which the molding or gasket is mounted. This lever action creates a force which tends to separate or lift an edge of the molding or gasket from the wall or panel to open the wall or panel under the molding or gasket for refinishing. The masking tape is especially applicable for masking flexible gaskets that include a leg portion that overlies an adjacent panel that is to be refinished.
Patent CA-2158474-A1 (CA)
Title: Variable speed transfer section between bindering lines
Inventor: ANKER EARL
IPC: B65H5/32
Filed: 1994-02-25
Abstract: A binding line (10) having selectable pin spacing on a gathering chain (22) includes a gathering section (12) including the gathering chain (22) having a plurality of spaced pusher pins (28) for transporting gathered signatures (S) seriatim therealong to a signature exit end (14). A stitcher section (16) includes a stitcher chain (32) having a plurality of spaced pusher pins (38) for transporting signatures (S) seriatim therealong from a signature entry end (18). A drive system (42) provides for driving the gathering chain (22) synchronously with the stitcher chain (32) so that both the gathering section (12) and stitcher section (16) operate at n constant signature feed rate. The gathering chain pins (28) are spaced apart a first select distance and the stitcher chain pins (38) are spaced apart a second select distance. The drive sytem (42) drives the gathering chain (22) at a different velocity from the stitcher chain (32) to provide the constant signature feed rate. A transfer section (20) includes an endless overhead chain (60) having a plurality of spaced pusher pins (62) and is driven approximately between the velocities of the gathering section (12) and the stitcher section (16).
Patent CA-2158867-A1 (CA)
Title: Beverage stabilizing system
Inventor: CLARK ROSS C
IPC: A23L29/262
Filed: 1994-04-12
Abstract: A beverage stabilizing system which is a blend of gellan gum and carboxymethylcellulose.  The blend provides a weak, stabilizing gel structure suitable for beverage products.
Patent CA-2159489-A1 (CA)
Inventor: SHUSTOROVICH ALEXANDER
IPC: C10L1/30
Filed: 1994-03-28
Abstract: Catalytic metal additives that directly dissolve in gasoline in concentrations providing efficient and economical three-way catalysis of exhaust gases from internal combustion engines. The additives are compounds of noble (e.g., Pt, Pd, Au and Rh) or non-noble (e.g., Re) metals. The preferred compounds have polar metal ligand bonds, preferably with inorganic ligands such as halogens, oxygen, etc., and/or salts with highly ionic (polarizable) cations such as of alkali metals. The preferred additive is a combination of X2PtCl6, RhCl3 and XReO4, where X = K, Rh or Cs. A combination of these finely ground materials is fabricated into a briquette or filter which is deposited in the gas tank or placed in a gas line. The catalytic metals are carried by the exhaust gases through the exhaust system where they are deposited on surfaces of the system to convert toxic emissions. In this way, the invention allows for the delivery of efficient gasoline additives without the use of solvents or extraneous agents.
Patent CA-2159979-A1 (CA)
Inventor: LAI ARTHUR
IPC: G06F9/46
Filed: 1995-10-05
Abstract: A method of linking peripheral devices to a single interrupt procedure in a computer is comprised of storing in an interrupt vector table of a BIOS ROM, a first pointer to an interrupt service routine related to one of a group of peripheral devices which use the same interrupt request (IRQ) on the same software interrupt vector, and storing further pointer in each one of the peripheral devices to another unique one of the peripheral devices in the group.
Patent CA-2160074-A1 (CA)
Inventor: DAIGRE JEAN-CLAUDE
IPC: B65G1/10
Filed: 1995-10-06
Abstract: La structure de module de rangement est constituée essentiellement par un caisson de rangement arrière (3), fixe avec ouverture frontale et par au moins un tronçon médian (5A), (7A) de rail de guidage destiné à recevoir au moins un caisson de rangement (4) avant, mobile face à l'ouverture frontale du caisson arrière. Le module rangement est formé par une structure de rangement recevant des tronçons de rails amovibles (5B), (7B) prolongeant les tronçons (5A), (7A). L'ensemble de rangement est formé par accolement de plusieurs structures de rangement réunies les unes aux autres par des pièces de rail, chaque pièce de rail étant transversale au plan de jointement des deux structures consécutive et étant fixée de manière amovible à l'une et l'autre structure dans le prolongement de leur tronçon (5A), ou (7A).
Patent CA-2160204-A1 (CA)
Title: Paint film-protective sheet
Inventor: MATSUI KOMAHARU
IPC: C09J121/00
Filed: 1995-10-10
Abstract: A paint film-protective sheet comprising a supporting substrate having  formed  thereon  a  rubber-based  pressure-sensitive layer comprising a rubber-based polymer having a low polarity and which does  not contain unsaturated bonds  or contains a small amount of unsaturated bonds, and a high-polar additive.  The paint film-protective sheet can adhere even to a paint film which is liable to cause a poor adhesion by bleeding, etc., without need of applying a cleaning treatment, can maintain the good adhered state over a long period of time, and can be easily peeled cleanly even after adhering for a long period of time.
Patent CA-2162204-A1 (CA)
Title: Container for fluid material
Inventor: TABARONI ROBERTO
IPC: B65D1/02
Filed: 1995-11-06
Abstract: A container has an elastically deformable body and a neck including a chamber connected with the container interior and the discharge opening of the neck by means of passages which are sized, shaped and positioned to prevent accidental spillage  of  the  product,   even  if  the  container  is horizontal. At least one of the passages may have a cross-section which is lenticular in shape, squashed at first but having geometry variable between an undeformed configuration when closed,  and a deformed configuration when open that allows outflow of product when the container is purposely squeezed by the user. On releasing the container, the shape of the cross-section returns to its initial almost closed, configuration.
Patent CA-2166676-A1 (CA)
Title: Diagnostic agent for hypoxia or mitochondrial dysfunction comprising radioactive copper complex of dithiosemicarbazone derivative or diamine diol schiff base derivative
Inventor: FUJIBAYASHI YASUHISA
IPC: A61K51/04
Filed: 1996-01-05
Abstract: The present invention relates to a diagnostic agent for hypoxia or mitochondrial dysfunction comprising a radioactive copper complex of a dithiosemicarbazone derivative or a radioactive copper complex of a diamine diol schiff base derivative described in claim 1.      The diagnostic agent according to the present invention has a good transferability to the target tissue, reduction reaction affinity at a hypoxic site, high stability in a non-target site and rapid disappearance ability therefrom.
Patent CA-2167526-A1 (CA)
Title: Monoglyceride/lactate ester permeation enhancer
Inventor: TASKOVICH LINA TORMEN
IPC: A61P13/02
Filed: 1994-09-29
Abstract: A composition of matter for application to a body surface or membrane to administer a drug by permeation through the body surface or membrane, the composition comprising, in combination, the drug to be administered, in a therapeutically effective amount; and a permeation-enhancing mixture comprising a monoglyceride or a mixture of monoglycerides, and a lactate ester or a mixture of lactate esters.
Patent CA-2170222-A1 (CA)
Title: Use of quinoxalines in combination with protease inhibitors as medicaments for treating aids and/or hiv infections
Inventor: PAEBETAENS ARNOLD
IPC: A61K31/34
Filed: 1996-02-23
Abstract: The present invention relates to the use of quinoxalines in combination with protease inhibitors as medicaments for treating AIDS and/or HIV infections.
Patent CA-2170322-A1 (CA)
Inventor: HARA SUSUMU
IPC: A61K8/63
Filed: 1996-02-26
Abstract: A process for the preparation of ceramide by using erythrocytes as a starting material is disclosed herein.  For the purpose of obtaining ceramide at a low cost and in a large amount, ceramide is prepared by means of hydrolysis or enzymolysis of sphingolipid existing in sphingomyelin.  According to the preparation process of the present invention, ceramide useful as a moisturizer for human skin can be obtained at a low cost and in a large amount by means of relying upon erythrocytes as a starting material.
Patent CA-2170941-A1 (CA)
Title: Absorbable polyoxaesters
Inventor: BEZWADA RAO S
IPC: C08G69/40
Filed: 1996-03-04
Abstract: The present invention describes a new aliphatic polyoxaesters that is bioabsorbable and may be used to produce surgical devices such as sutures, sutures with attached needles, molded devices, and the like. The invention also contemplates a process for producing these polyesters. The aliphatic polyoxaesters of the present invention have a first divalent repeating unit of formula I: [O-C(O)-C(R1) (R2)-O-(R3)-O-C(R1) (R2)-C(O)-] I and a second repeating unit selected from the group of formulas consisting of: ~O-R4-~,  II ~O-R5-C(O)-~, and  III ([-O-R5-C(O)]P-O-)L G XI and combinations thereof.
Patent CA-2171176-A1 (CA)
Inventor: OLIVIER GERARD JOSEPH CECIL
IPC: E03D9/08
Filed: 1994-09-09
Abstract: L'invention concerne un siège (11) destiné à être fixé sur une cuvette de toilettes pour pouvoir être déplacé entre une position d'assise en appui sur la cuvette et une position levée. Ce siège comporte un conduit agencé pour être connecté à une alimentation en eau (33), le conduit étant connecté à une buse de sortie (14) supportée par un bras (13) porté par le siège, de sorte que la buse (14) se trouve dans la cuvette des toilettes en étant dirigée vers le haut, le bras (13) étant porté par le siège (11) des toilettes pour pouvoir se déplacer et provoquer le mouvement de la buse suivant une trajectoire à l'intérieur de la cuvette qui coïncide sensiblement avec l'axe avant - arrière de la cuvette. Le bras (13) est également porté par le siège des toilettes pour provoquer le déplacement de la buse depuis une première position jouxtant la paroi de la cuvette vers une seconde position où la buse se trouve sur la trajectoire. On a prévu un moyen d'entraînement (34) pour provoquer ledit mouvement du bras. Le siège comporte un conduit d'air (16, 17) agencé pour être connecté à une alimentation forcée d'air (18, 19), ledit conduit d'air (16, 17) ayant une sortie (20, 21) à l'avant et à l'arrière du siège des toilettes (11), lesdites sorties (20, 21) étant positionnées pour diriger de l'air vers la région arrière et la région avant du corps de l'utilisateur entouré par le siège des toilettes. Un moyen de commande régule l'alimentation en eau, l'alimentation en air et le fonctionnement du moyen d'entraînement (34). Le bras est déplacé par l'activation du moyen d'entraînement (34) de la première position vers la seconde position, et il provoque alors le déplacement de la buse le long de la trajectoire vers un ou plusieurs emplacements, auxquels le bras provoque chaque fois le déplacement de la buse sur une petite distance suivant la trajectoire, le moyen de commande provoquant l'alimentation en eau de la buse (14) et en outre auxdites positions une alimentation en air du conduit (20, 21) après l'alimentation en eau de la buse (14).
Patent CA-2171596-A1 (CA)
Title: Method of shipping and assembling burial casket and casket shipped and assembled by such method
Inventor: ENNEKING JOHN R
IPC: A61G17/00
Filed: 1996-03-12
Abstract: A method of shipping a burial casket in a knocked-down configuration and subsequently assembling the casket at its point of destination comprises the steps of providing a kit of disassembled casket components assemblable into a casket having a shell and a cap, packing the kit of components into shipping container, shipping the packaged casket kit to a destination point, removing the kit from the container and assembling the casket from the kit utilizing at least a portion of the shipping container as an interior component of the casket.  A casket comprises a shell and cap assembled from a kit shipped in knocked-down configuration, a body support structure positioned in the shell for supporting a body and a floor for the casket upon which to support the body support structure in the shell.  The body support structure is formed from the bottom of an elongated, shallow, generally rectangular shipping carton in which the casket kit is shipped.  The floor is formed from the top of the carton.  The top of the carton can also be utilized to form a liquid retaining tray.
Patent CA-2174063-A1 (CA)
Title: Method of producing triazine derivatives
Inventor: MIKI HIDEKI
IPC: C07D253/06
Filed: 1996-04-12
Abstract: Disclosed is a method for producing a 1,2,4-triazin-3-one derivative represented by the formula:       (III) (wherein R1 is an optionally substituted hydrocarbon residual group; X stands for carbonyl group, thiocarbonyl group or an optionally substituted methylene group; and the dashed line means that a double bond may optionally be formed) by subjecting a semicarbazone derivative represented by the formula:       (II) (wherein R1  is as defined above; R2  and R3 stand for hydrogen, an optionally substituted hydrocarbon residual group or an electron withdrawing group; and R4 stands for an optionally substituted alkyl group) to a ring-closure reaction.  The 1,2,4-triazin-3-one is useful, for example, as medicine, veterinary drug or agricultural chemical.
Patent CA-2175206-A1 (CA)
Title: Mechanisms for orienting and placing articles
Inventor: HAYWARD VINCENT
IPC: B25J17/02
Filed: 1994-10-26
Abstract: A mechanism for orienting an end member utilizes paired five-bar linkages wherein two joints on each five-bar linkage may be actuated. Preferably the actuators are mounted at the baselink of the five bar linkages, such base-links being collinearly aligned. Two or three rotational and one translational degree of freedom are available. This mechanism in its three or two degrees of rotational freedom variants have exceptional motion range, free of singularities, superior structural properties, and is easy to manufacture. This orienting mechanism can be mounted as an end member on a positioning mechanism having a four main links wherein three joints are actuated. The diagonally opposed joints of the positioning mechanism are respectively spherical and revolute. This positioning mechanism can operate with two actuators that are grounded and one that is elevated. In all cases sensors may be substituted for, or used in conjunction with, actuators to provide an apparatus useful, interalia, in the telerobotics and virtual reality fields.
Patent CA-2175246-A1 (CA)
Title: Process for Preparing 1-Amino-1,2,3-Triazole
Inventor: SHIGENO KAZUHIKO
IPC: C07D249/04
Filed: 1995-08-30
Abstract: This invention is to provide a process for preparing 1-amino-1,2,3-triazole represented by formula (III):                    (III) comprising  cyclizing  glyoxal  bishydrazone  represented  by formula (I):                                  (I) by reaction with an aqueous hydrogen peroxide solution in the presence of a catalytic amount of a transition metal oxide represented by formula (II):     MmOn                         (II) wherein M represents a transition metal atom; and m and n, which may be the same or different, each represent an integer of 1 to 5.
Patent CA-2176874-A1 (CA)
Title: Fibrin d-domain multimer coated prostheses and methods for their production
Inventor: BISHOP PAUL D
IPC: A61L33/00
Filed: 1996-05-17
Abstract: Methods for coating a prosthetic surface with anti-thrombogenic, or anti--coagulant, proteins are disclosed. The methods involve contacting a surface of a prosthetic material with a composition containing multimers of fibrin degradation products. The fibrin multimers, preferably D-dimers, have cross-linked D- domains. The methods of the invention are useful for providing an anti-thrombogenic coating on prosthetic implants which are exposed to a patient's blood after implantation, for example vascular grafts and artificial heart valves.