baber/WOPTO huggingface dataset:
Patent CA-2049654-C (CA)
Inventor: STEER GRAHAM EMERY
IPC: A61F13/15
Filed: 1991-08-21
Granted: 2002-03-05
Abstract: A method of making a gas-permeable liquid-impermeable membrane includes the steps of perforating a film of linear low density polyethylene (or other suitable polyolefin) in such a way as to yield an array of holes each having an average diameter of approximately 350 , and then solution coating the needled film with a porous polyurethane material having pores of a pore size of 1 to . Such a film is advantageously embodied in an ileostomy bag, and is fixed to a bag wall thereof in a location to prevent faecal material contacting the ~ bag filter, by a heat or RF wedding operation by which the polyolefin is welded to the bag wall which carries the filter. In use, the polyurethane is exposed to the bag contents, and permits gases to pass but prevents any liquid reaching the filter.
Patent CA-2057833-C (CA)
Inventor: PIPPY JOHN H C
IPC: A01K61/95
Filed: 1991-12-17
Granted: 1997-11-11
Abstract: An apparatus that provides high contrast silhouette images of moving aquatic organisms against a brightly lit background. The apparatus comprises: a tunnel for confining the lateral and vertical motion of moving aquatic organisms, the tunnel having transparent top and front walls, a rear wall, and a bottom wall; a first retroreflective surface associated with the rear wall of the tunnel, and a second retroreflective surface associated with the bottom wall of the tunnel; a camera; a light source; support means for supporting the image sensing device in front of the tunnel and the light source in proximity with the image sensing device for directing light towards the retroreflective surfaces; a mirror positioned above the top wall for reflecting light reflected from the generally horizontal retroreflective surface; the top, bottom, front and rear walls of the tunnel disposed in planes at angles aligned with the viewing angles of the camera to render the walls substantially invisible to the image sensing device; said image sensing device, light source and mirror being positioned relative to the tunnel to receive reflected light from the first retroreflective surface, and the second retroreflective surface via the mirror, such that an image as viewed by the camera includes a front view and a top view of the tunnel that appears in the form of a brightly lit background, and whereby a passing organism appears as a silhouette. In a specific embodiment, means are provided involving measuring or confining the distance of the organism from the camera to facilitate determination of target organism size.
Patent CA-2059847-C (CA)
Inventor: TRAISE JOHN E
IPC: B29C65/02
Filed: 1992-01-22
Granted: 2003-09-23
Abstract: Apparatus and related method for activating pressure sensitive adhesive on predetermined portions of a first sheet in order to fasten the first sheet to a second sheet are provided which include at least one sealer wheel formed with an interrupted surface pattern for applying pressure along the adhesive to effect a rhythmically interrupted sequence of sealed spots between the first and second sheets.
Patent CA-2061079-C (CA)
Title: Low noise timing belt
Inventor: WONG CHEE-CHIU JOSEPH
IPC: F16G1/00
Filed: 1992-02-12
Granted: 2001-04-10
Abstract: Low noise timing belts for use in belt drive systems include either perforations cut into their thin segments or spiral grooves cut into their thick segments in order to allow air pockets to escape in all directions during teeth engagement of belts and pulleys, thereby reducing the noise generated in the process.
Patent CA-2066470-C (CA)
Title: Liquid electrical tape formulation
Inventor: DORNAU PETER
IPC: C09D127/06
Filed: 1992-04-24
Granted: 1999-06-22
Abstract: A quick drying liquid electrical tape formulation having good shelf life.  The formulation forms a durable vinyl coating or film on wires, junctions and objects.  The formulation is comprised of at least 10% of a vinyl material effective to achieve the durable vinyl coating.  The formulation further includes a thixotropic agent to add body, and a plasticizer to impart flexibility to the vinyl coating.  The vinyl material, thixotropic agent and plasticizer are admixed with solvents comprising at least one drying agent.  The formulation further including a stabilizing agent and at least one solvent, such that the thixotropic agent and plasticizer enable the application of a satisfactory coating using the formulation.
Patent CA-2069957-C (CA)
Title: Chemiluminescent 3-(substituted adamant-2'-ylidene) 1,2-dioxetanes
Inventor: BRONSTEIN IRENA
IPC: C07F9/12
Filed: 1991-08-30
Granted: 2000-07-18
Abstract: Enzymatically cleavable chemiluminescent 1,2-dioxetane compounds capable of producing light energy when decomposed, substantially stable at room temperature before a bond by which an enzymatically cleavable labile subsituent thereof is intentionally cleaved, are disclosed. These compounds can he represented by formula (I) wherein X and X1 each represent. individually, hydrogen, a hydroxyl group, a halo substituent, an unsubstituted lower alkyl group, a hydroxy (lower) alkyl group, a halo (lower) alkyl group, a phenyl group, a halophenyl group, an alkoxyphenyl group, a hydroxyalkoxy group. a cyano group, a carboxyl or substituted carboxyl group or an amide group, with at least one of X and X1 being other than hydrogen; and R1 and R2 individually or together, represent an organic substituent that does not interfere with the production of light when the dioxetane compound is enzymatically cleaved and that satisfies the valence of the dioxetane compound's 4-carbon atom, with the provisos that if R1 and R2 represent individual substituents the R2 substituent is aromatic, heteroaromatic, or an unsaturated substituent in conjugation with an aromatic ring, and that at least one of R1 and R2 is, or R1 and R2 taken together are, an enzymatically cleavable labile group-substituted fluorescent chromophore group that produces a luminescent substance when the enzymatically cleavable labile substituent thereof is removed by an enzyme. The corresponding dioxetanes which, instead of being substituted at the 5' or 7', or at the 5' and ~ positions, instead contain a 4' methylene group, are also disclosed, as are intermediates for all these 3substituted adamant-2'-ylidenedioxetanes, and their use as reporter molecules in assays.
Patent CA-2072651-C (CA)
Title: Process for obtaining nitrogen from air or nitrogen-containing gases by pressure exchange adsorption on carbon molecular sieves
Inventor: SCHROETER HANS JUERGEN
IPC: B01D53/047
Filed: 1990-12-10
Granted: 2000-10-24
Abstract: Process for obtaining nitrogen from air or nitrogen-containing gases by pressure exchange adsorption and desorption on two alternately operated adsorbers filled with carbon molecular sieves, whereby air is passed through the adsorber so that the oxygen is adsorbed and enriched nitrogen is obtained; while at the same time the other adsorber is regenerated by pressure relief, whereby in a first-carbon molecular sieve layer (on the air intake side) of the two adsorbers, making up 1/20 to 1/2 of the entire carbon molecular sieve layer, a carbon molecular sieve A is inserted serving at the same time to take the residual moisture and for gas separation, and in a second carbon molecular sieve layer (on the air outlet side) a carbon molecular sieve B is inserted serving solely for gas separation, and carbon molecular sieve A has a relative volume of 3.0 to 3.4 while B has a relative volume of 2,3 to 2.95.
Patent CA-2074621-C (CA)
Title: Device (clamp) for retaining rolls or logs by pressure in cutters for the production of toilet paper and other items
Inventor: BIAGIOTTI GUGLIELMO
IPC: B26D7/04
Filed: 1992-07-24
Granted: 1996-09-17
Abstract: The pressure-retaining device or clamp acts on the roll or log adjacently to the cutting plane and may be adapted to various diameters of the material being processed; for each path of advancs of the rolls or logs (B) and on each side of the cutting plane, it comprisies: a pair of symmetrically curved flexible strips (12, 14) projecting from enclosing supports (9A, 10; 7A, 10) and having end portions able to move according to the variation in the diameter of the roll, and a strap (22) fixed to elastic return holders (24A) and adjusting holders, said strap surrounding the pair of strips (12, 14) so as to vary their geometry in relation to the variation in the diameter of the material being processed.
Patent CA-2077219-C (CA)
Title: Vehicle with perforated panels
Inventor: KUHNS DAN A
IPC: B62D33/023
Filed: 1992-08-31
Granted: 2004-02-10
Abstract: A towable wheeled vehicle or grain cart for transporting a loose cargo, such as grain, includes a perforated panel in the front and rear walls thereof for observing the status of fill of the cargo and to permit visibility to the rear thereof when the vehicle or grain cart is in transit or is being positioned.
Patent CA-2077547-C (CA)
Inventor: CLARK RICHARD O
IPC: E01F9/627
Filed: 1992-01-15
Granted: 1994-06-14
Abstract: (54)Title: IMPACT RECOVERY DELINEATION SYSTEM            (57) Abstract An impact recovery delineation system (10) comprises a base mem-ber (12) that provides improved bonding to the road surface, sealed, pneu-matic tube (16) of high impact resistant material composition acts as a de-lineator post and upper (24) and lower (26) load cell elements are provided with cable passages (50 & 52) to allow side-by-side placement of wire rope cables (54 & 56). The passages (50 & 52) are geometrically configured and have radiused (62 & 64) and straight edges (63 & 65) which result in rapid bending and recovery of the delineator post system (10) upon impact. A sig-nage panel (18) has air vents (17) to reduce wind resistance and improve recovery of the impacted system. A safety loop (55) in the cable system pre-vents the delineator post (10) and signage (18) from being separated.
Patent CA-2086681-C (CA)
Title: Growth promoting agent derived from milk
Inventor: BALLARD FRANCIS J
IPC: C12N5/071
Filed: 1991-07-09
Granted: 2004-01-06
Abstract: A milk product extract composition including a plurality of cell growth stimulating factors, extracted from milk product, in concentrated form; said factors having basic to approximately neutral isoelectric points. Cell culture compositions and pharma-ceutical or veterinary compositions including the above milk product extract.  Methods for preparing and using the same.
Patent CA-2112759-C (CA)
Inventor: RICHARDSON MICHAEL R
IPC: A61M5/32
Filed: 1994-01-04
Granted: 1997-02-25
Abstract: A disposal container for automatic release of cannulas from a holder and for disposal of the cannulas, and a system for hands-free release of a cannula from a holder.  Included is a disposal container having a release aperture formed in the top, the aperture including opposite tapered sides extending into the container.  A cannula is mounted in a cannula holder, the holder having at least one depressible lock element extending from the holder.  The holder is inserted in the release aperture with the lock element engaging the tapered side, and the holder is then depressed to automatically eject the cannula from the holder.          If the cannula is installed in a removable adaptor inserted in the holder, both the adaptor and the cannula are ejected when the holder is depressed in the aperture.
Patent CA-2116040-C (CA)
Inventor: LUEBKE ROGER D
IPC: B66F9/07
Filed: 1994-02-21
Granted: 1997-11-25
Abstract: A floor-running stacker crane comprising a non-linear floor rail, a non-linear overhead rail, a base supported for movement along the floor rail, a turntable, a rotate bearing supporting the turntable on the base for rotation of the turntable relative to the base about a generally vertical axis, a rotate drive for rotating the turntable relative to the base,  a mast having a lower end fixed to the turntable such that the mast rotates with the turntable relative to the base, the mast also having an upper end supported for movement along the overhead rail, a carriage moveable vertically relative to the mast, a hoist assembly for moving the carriage vertically relative to the mast, a load engaging mechanism, a rotate bearing supporting the load engaging mechanism on the carriage for rotation relative to the carriage about a generally horizontal axis, and a tilt drive for rotating the load engaging mechanism relative to the carriage.
Patent CA-2143084-C (CA)
Title: Catalyst for reactive hot melt adhesives
Inventor: HUNG JU M
IPC: C08G18/20
Filed: 1995-02-21
Granted: 1999-02-02
Abstract: A catalyzed polyurethane reactive hot melt adhesive is prepared from a reactive polyurethane prepolymer and 0.05 to 0.6% by weight of a 2,2'dimorpholinoethyl ether or di(2,6-dimethylmorpholinoethyl)ether catalyst. The adhesive is characterized by improved curing speed with little or no effect on the thermal stability. These reactive hot melts will bond to a variety of substrates including plastics, woods, fabrics and some metals making them ideal candidates for bonding dissimilar substrates. Moreover, they are flexible and durable by nature, so they may be used in extreme temperature ranges of -30 to +150°C while providing excellent moisture and chemical resistance.
Patent CA-2149479-C (CA)
Inventor: STEIMLE ANDRE
IPC: G06V10/764
Filed: 1995-05-16
Granted: 2001-05-15
Abstract: There is disclosed the architecture of a neural semiconductor chip first including a neuron unit comprised of a plurality of neuron circuits fed by different buses transporting data such as the input vector data, set-up parameters, and control signals. Each neuron circuit includes means for generating local result signals of the "fire" type and a local output signal of the distance or category type on respective buses. An OR circuit performs an OR function for all corresponding local result and output signals to generate respective first global result and output signals on respective buses that are merged in an on-chip common communication bus shared by all neuron circuits of the chip. An additional OR function is then performed between all corresponding first global result and output signals to generate second global result and output signals, preferably by dotting on an off-chip common communication bus in the driver block. This latter bus is shared by all the neural chips that are connected thereon to incorporate a neural network of the desired size. In the chip, a multiplexer may select either the first or second global output signal to be reinjected in all neuron circuits of the neural network as a feed-back signal depending on the chip operates in a single or multi-chip environment via a feed-back bus. The feedback signal results of a collective processing of all the local signal.
Patent CA-2150015-C (CA)
Inventor: WEAVER LINDSAY A JR
IPC: G06F17/15
Filed: 1993-11-18
Granted: 2001-05-08
Abstract: Procédé et appareil destinés à calculer la projection scalaire d'un vecteur sur un autre vecteur. Ledit appareil comprend un circuit multiplicateur (94) et un circuit additionneur (96). Le circuit multiplicateur (94) sert à multiplier une valeur représentative d'une composante d'un premier vecteur par une valeur représentative d'une première composante d'un second vecteur pour obtenir une première valeur intermédiaire, et à multiplier une valeur représentative d'une seconde composante d'un premier vecteur par une valeur représentative d'une seconde composante d'un second vecteur pour obtenir une seconde valeur intermédiaire. Le circuit additionneur (96) additionne les première et seconde valeurs intermédiaires pour fournir une valeur résultante représentative de la projection scalaire du premier vecteur sur le second vecteur. Ledit appareil peut en outre comporter un premier circuit de stockage (80, 82), un premier circuit de sélection (88), un second circuit de stockage (84, 86) et un second circuit de sélection (90). Le premier circuit de stockage (80, 82) est destiné à stocker les valeurs représentatives des première et seconde composantes du premier vecteur, et le second circuit de stockage (84, 86) est destiné à stocker les valeurs représentatives des première et seconde composantes du second vecteur. Les circuits de sélection (88, 90) acheminent ces valeurs de manière classée jusqu'au circuit multiplicateur (94).
Patent CA-2151979-C (CA)
Title: Electron capture detector with guard electrode
Inventor: SIMON RICHARD K JR
IPC: G01N30/70
Filed: 1995-06-16
Granted: 1999-05-18
Abstract: An improved ECD employing an ECD cell having a third electrode, i.e. guard, positioned between the ECD cell field electrodes. The guard electrode is physically interposed between said field electrodes to divert all leakage current in the support insulators which flow between the field electrodes. The guard electrode ECD cellprovides improved linear dynamic range as well as avoiding deterioration from handling during manufacture or repair.
Patent CA-2152931-C (CA)
Inventor: KELSEY DONALD R
IPC: C08F4/78
Filed: 1993-12-30
Granted: 2005-11-08
Abstract: A catalyst and process for the metathesis polymerization of cyclic olefins, such as dicyclopentadiene, are disclosed. The catalyst comprises the reaction product of a transition metal halide preferably tungsten, molybdenum, or tantalum halides and a diaryl carbinol of formula (I) wherein G is independently C1-12 alkyl, C1-12 alkoxy, C1-12 alkylamino, C6-20 aryl, halide, or C1-6 haloalkyl; g is independently 0 to 4; R is independently hydrogen or G or the Rs are combined as a single bond or as a bridging group X, where X is CH2, CH2CH2, O, S, SO, SO2 or NR1, and R1 is H or C1-6 alkyl. Optional co-catalysts include borohydrides, organo tin hydrides and organo aluminum compounds. Polymerization can be carried out in a reaction injection molding process to prepare a molded article.
Patent CA-2152949-C (CA)
Inventor: COX JOHN COOPER
IPC: A61K47/48
Filed: 1993-12-24
Granted: 2009-02-24
Abstract: Vaccine preparations in stable particulate form are disclosed. An immediate-release preparation comprises an immunogen adsorbed to an aluminium salt adjuvant. A controlled- or delayed-release preparation comprises microspherical particles comprising a continuous matrix of biodegradable polymer containing discrete, immunogen-containing regions.
Patent CA-2157296-C (CA)
Inventor: LUCAST DONALD H
IPC: C09J7/02
Filed: 1994-04-08
Granted: 2005-04-05
Abstract: Crosslinked, absorbent pressure sensitive adhesive compositions are disclosed comprising an acrylate or methacrylate ester of an alcohol, a hydrophilic alkylene oxide acrylate, a hydrophilic N-vinyl lactam, and an effective amount of a crosslinking agent. The compositions have an enhanced skin adhesion profile and are moderately absorbent. Also disclosed are precursor adhesive compositions and low-profile wound dressings.
Patent CA-2159807-C (CA)
Title: Improved absorbent members having improved fluid distribution via low density and basis weight acquisition zones
Inventor: PAYNE MICHAEL
IPC: D04H1/42
Filed: 1994-03-22
Granted: 1999-10-05
Abstract: An absorbent article having a dual-layer absorbent member, wherein the deposition region of its upper acquisition layer comprises a distribution zone and an acquisition zone having a lower average density and a lower average basis weight per unit area than the distribution zone. The acquisition zone is positioned toward the front of either the absorbent member or the absorbent article so that the acquisition zone may most effectively and efficiently rapidly acquire discharged liquids. The lower storage layer comprises a mixture of hydrophilic fibrous material and discrete particles of absorben gelling material having a particular size distribution so as to enhance the absorbent capacity and acquisition rate of the dual-layer absorbent member. The upper acquisition layer comprises a homogeneous composition of stiffened, twisted, and curied cellulose fibers which provide enhanced wicking action in the densified distribution zone. The upper acquisition layer serves to rapidly and evenly distribute fluids to the lower storage laer for storage, while freeing the acquisition zone for the next discharge of fluid.
Patent CA-2160063-C (CA)
Title: Road barrier
Inventor: BRAVERMAN JOSEF J
IPC: E01F15/08
Filed: 1995-10-06
Granted: 1998-05-05
Abstract: A plastic road barrier has an elongated base portion having an open center portion and a hollow peripheral portion surrounding the open center portion. The hollow peripheral portion has an inlet into an upper portion thereof for receiving water or other ballast, and an outlet from a lower portion thereof for draining the ballast. An elongated hollow upper portion, open at the bottom, extends upwardlyfrom the base portion, and is preferably but not necessarily integral therewith. Its horizontal dimensions reduce from bottom to top, via steps and/or by being tapered, so that the barriers can be stacked by inserting the upper portion of one barrier a substantial distance into the upper portion of another barrier.
Patent CA-2161812-C (CA)
Inventor: SCOTTON GEOFFREY R
IPC: H04B1/38
Filed: 1995-02-06
Granted: 1999-08-10
Abstract: A method of modem power conservation used in a data communications system having an infrastructure (101), and a modem (103), the modem registered with the infrastructure and adapted to provide data communications between a host terminal (105) and the infrastructure (101), the method including the steps of receiving, at the modem (103), a message, determining that the message is not deliverable to the host terminal (105), and responsive thereto entering, at the modem (103) a power conservation mode. An alternative method directed to the same purposes includes the steps of entering, at the modem (103), a power conservation mode after a first predetermined time has lapsed without message activity, then exiting the power conservation mode after a second predetermined time has lapsed, and finally registering with the infrastructure (101).
Patent CA-2163811-C (CA)
Inventor: DISSETT WALTER L
IPC: F16H48/12
Filed: 1995-11-27
Granted: 2000-01-04
Abstract: An improved differential mechanism of the holdout ring type is disclosed, characterized by the provision of a pair of annular thrust blocks engaged by sets of Belleville disc-spring washers which bias a pair of side gears axially outwardly apart against a pair of annular thrust washers, respectively, non-rotatably supported by the differential housing.  By loading the side gears in the axial direction, the side gear radial freedom of movement is restricted, whereby the differential chatter and noise level during operation are significantly reduced.
Patent CA-2166164-C (CA)
Inventor: ONO MIYOKO
IPC: C12H1/00
Filed: 1995-12-27
Granted: 2001-11-20
Abstract: Quantitative determination and evaluation of the flavor stability of fermented alcoholic beverages are performed by measuring the changes of the amounts of spin adduct from the formation behavior of active oxygen with passage of time using an ESR apparatus and either determining the value on the time axis of the inflection point of changes of the amounts of spin adduct (defined as the active oxygen formation lag time) or determining the amount of spin adduct after a predetermined time has elapsed after the start of measurement (defined as the active oxygen formation activity). The longer the active oxygen formation lag time or the lower the active oxygen formation activity, the greater the oxygen resistance of the fermented alcoholic beverage, thus making it possible to evaluate that fermented alcoholic beverage as having good flavor stability. In addition, if the formation behavior of active oxygen of semi-finished products in the production process is measured in the same manner, the quality of flavor stability when that semi-finished product has become a finished product can be predicted and evaluated.