baber/WOPTO huggingface dataset:
Patent CA-2240470-A1 (CA)
Inventor: PADILLA HENRY N
IPC: A61B18/20
Filed: 1998-06-12
Abstract: The apparatus for combined mechanical/laser myocardial revascularization of a human heart includes: inserting a mechanical piercing device and an elongated flexible lasing apparatus into the chest cavity of a patient;  mechanically auto-piercing, micro-tearing or spreading the epicardium of the heart; and then lasing from beneath the epicardium through the myocardium.  The apparatus is guided to an area exterior to a ventricle of the patient's heart, and the distal end of the energy delivery device such as an optical fiber apparatus is placed internal to the exterior wall of the heart through an opening which has been created by mechanically piercing, micro-tearing or spreading the epicardium, so that the myocardium and not the epicardium is irradiated with laser energy to allow passage of said energy delivery device such as an optical fiber distal end or said laser energy into the left ventricular cavity without causing a laser irradiation of the epicardium which might be a cause of operative bleeding and for better allowing the sealing of the epicardium after the apparatus is removed. The apparatus includes a hand-held device controllable by the physician having a removable distal head portion with an auto-piercing mechanism and can use a vacuum source to provide a suction force at the head portion. The auto-piercing mechanism is implemented by various ways such as a spring-biased actuating member in the TMR hand-held device  and an electro-mechanical operated piercing mechanism. The hand-held TMR device with handle assembly can also be controlled by a computer to provide  auto- sequencing of the auto-piercing needle mechanism and the laser firing with auto-fiber advancement.
Patent CA-2242636-A1 (CA)
Inventor: PADUANO GUIDO
IPC: A61Q19/08
Filed: 1997-01-08
Abstract: The skin treatment preparation comprises, in combination: collagen; elastin;  an optional vasodilatory substance; at least one acid chosen from deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), or a salt thereof; a vehicle and/or an excipient.
Patent CA-2244307-A1 (CA)
Inventor: WHITEHOUSE DONALD
IPC: F23N5/10
Filed: 1998-07-27
Abstract: The present specification discloses a gas fired heater having a control lever (13) which is movable to open a flame failure valve (53,59) and a main gas supply valve (49,50). The main gas supply valve (49, 50) is connected to at least one burner (5,7) by a thermostatically controlled valve (71) and/or, when two or more burners are provided, via a preselector valve (75).
Patent CA-2245080-A1 (CA)
Title: Process for the preparation of heteroarylcarboxylic amides and esters
Inventor: KNELL MARCUS
IPC: C07D213/04
Filed: 1998-08-17
Abstract: The invention relates to a process for the preparation of heteroarylcarboxylic amides and esters of formula I     (see formula I) in which A1 through A5, R1, Hal and X one or two of the groups A1, A2, A3, A4 and A5 represent a nitrogen atom and the other groups each independently represent CR3, Hal represents a halogen atom, X represents oxygen or NR2, R1 represents an optionally substituted alkyl, aryl, heteroaryl or cycloalkyl group, R2 represents a hydrogen atom or an alkyl group, or R1 and R2 together with the interjacent ring form a heterocyclic group, and R3 each independently represent a hydrogen atom or an alkyl group, which comprises: heating a mixture consisting essentially of heteroaryltrichloromethane compound of formula II, (see formula II) in which A1 through A5 and Hal are as hereinbefore defined, and 1.0 to 1.5 equivalents of concentrated sulfuric acid, and reacting the resulting intermediate product with an alcohol or amine of formula III     optionally in the presence of a diluent and/or a base.
Patent CA-2246886-A1 (CA)
Inventor: BRACKMANN WARREN A
IPC: A24F13/02
Filed: 1998-09-08
Abstract: An assembly for use in re-lighting and smoking a cigarette multiple times. The assembly comprising: i) a cigarette holder having a tubular receiver for receiving and supporting a filter tipped end of a cigarette and a secondary filter provided at a first end of the tubular receiver; ii) a tubular enclosure for a tobacco rod portion of a cigarette, the enclosure having an internal length sufficient to accommodate a tobacco rod portion and a sorptive member disposed in a closed end of the tubular enclosure to sorb off-taste and off-odor constituents from an extinguished cigarette and thereby freshen an extinguished cigarette for subsequent re-light; iii) the receiver and the enclosure having open end portions which co-operate in a telescopic manner to enclose an entire cigarette which has been partially smoked and extinguished.
Patent CA-2248582-A1 (CA)
Inventor: NISHIYAMA TETSUYKI
IPC: A61K9/14
Filed: 1997-03-17
Abstract: The present invention can form an amorphous solid dispersion of efonidipine hydrochloride having a high intestinal absorbability which can be formed by subjecting a mixture containing efonidipine hydrochloride of formula (I), hydroxypropylmethylcellulose acetate succinate and optionally a thermostabilizer to a step A of heat treatment at from 85 to 140 °C or mechanochemical treatment at from 0 to 140 °C, and then to a step B of dipping treatment into a water-containing solution, impregnation treatment with a water-containing solution or contacting treatment with a water vapor-containing gas; or treating the above-mentioned mixture with a hot steam at from 100 to 140 °C and a high pressure. Further, in the above-mentioned step A, the mixture is subjected to high frequency heating, making it possible to give a solid dispersion of efonidipine hydrochloride having a high intestinal absorbability without using the step B.  This process is quite advantageous in the production in that the use of an organic solvent is not required.
Patent CA-2249740-A1 (CA)
Inventor: HENRICH HEIDEMARIA
IPC: F15B11/22
Filed: 1996-03-14
Abstract: The invention concerns a swivelling device comprising: a base member; a swivel shaft (6) which, in operation, can rotate about a swivel axis; a drive; and gearing. The swivelling device operates particularly reliably when the drive comprises at least one actuator (4, 5) operated by pressurized fluid. The invention provides a low-maintenance drive which has high torque and retaining forces, of the type required for satellite antennae, for example.
Patent CA-2254111-A1 (CA)
Title: Artificial mismatch hybridization
Inventor: SMITH LLOYD M
IPC: C12Q1/68
Filed: 1997-06-05
Abstract: An improved nucleic acid hybridization process is provided which employs a modified oligonucleotide and improves the ability to discriminate a control nucleic acid target from a variant nucleic acid target containing a sequence variation. The modified probe contains at least one artificial mismatch relative to the control nucleic acid target in addition to any mismatch(es) arising from the sequence variation (as shown in the figure). The invention has direct and advantageous application to numerous existing hybridization methods including applications that employ, for example, the polymerase chain reaction, allele-specific nucleic acid sequencing methods, and diagnostic hybridization methods.
Patent CA-2255079-A1 (CA)
Title: Buse
Inventor: BEBICH MATTHEW MARK
IPC: B05B1/34
Filed: 1997-05-09
Abstract: L'invention porte sur une buse (2) de pulvérisation de liquide comportant un logement (6), des chambres de tourbillonnement (8) et des jets tourbillonnaires (10) dans les chambres de tourbillonnement (8). Le logement (6) est muni d'orifices d'évacuation (12) correspondant chacun à une chambre de tourbillonnement (8). Le liquide fourni à la buse (2) traverse les chambres de tourbillonnement (8) et se trouve atomisé par les jets tourbillonnaires (10). De ce fait le liquide pulvérisé par les d'orifices d'évacuation (12) se trouve nébulisé.
Patent CA-2255506-A1 (CA)
Title: Fuel compositions containing polyamines of poly(oxyalkylene) aromatic esters
Inventor: CHERPECK RICHARD E
IPC: C10L10/00
Filed: 1998-12-09
Abstract: A polyamine-containing poly(oxyalkylene) aromatic ester having the formula:                  (see fig. I) or a fuel-soluble salt thereof;   where R1 is a polyamine moiety having about 2 to about 12 amine nitrogen atoms and about 2 to about 40 carbon atoms, wherein the polyamine moiety is connected to the aromatic ring through one of its amine nitrogen atoms, R2 and R3 are independently hydrogen or lower alkyl and each R2 and R3 is independently selected in each ~O~CHR2~CHR3~unit; R4 is hydrogen, alkyl having 1 to about 100 carbon atoms, phenyl, aralkyl having about 7 to about 100 carbon atoms or alkaryl having about 7 to about 100 carbon atoms, or an acyl group of the formula:                  (see fig. II) where R5 is alkyl having 1 to about 30 carbon atoms, phenyl, aralkyl having about 7 to about 36 carbon atoms or alkaryl having about 7 to about 36 carbon atoms; and y is an integer from about 5 to about 100.     The polyamine-containing poly(oxyalkylene) aromatic esters of the present invention are useful as fuel additives for the prevention and control of engine deposits.
Patent CA-2257559-A1 (CA)
Inventor: TOMIC DOBRIVOJE
IPC: A61K33/42
Filed: 1997-06-02
Abstract: L'invention concerne des préparations, notamment pour application locale, contenant a) des composés ioniques, b) des liants et adhésifs astringents, c) éventuellement des composés lipotropes, des constituants antimycosiques, anti-inflammatoires et végétaux. Lesdites préparations sont caractérisées en ce qu'elles renferment de la bétaïne.
Patent CA-2259445-A1 (CA)
Title: Disposable absorbent article having a decoupled, randomly arranged absorbent structure
Inventor: TAMBURRO MAURIZIO
IPC: A61F13/15
Filed: 1997-06-02
Abstract: This invention is a disposable absorbent article (20) which is substantially flat prior to use for wearing adjacent a body discharge area, having a body facing surface and a garment facing surface. The disposable absorbent article (20) includes a liquid pervious topsheet (24), a backsheet (26), and an absorbent core (28) intermediate the topsheet and the backsheet. The absorbent core (28) has a body facing surface and a garment facing surface, and has an expanding layer (46) for expanding the article into a tridimensional structure while being worn by a user. The expanding layer (46) includes a number of smaller expanding elements (50) that are activated by body fluids, are de-coupled from one another, and are capable of expanding substantially in only one direction upon activation by body fluids.
Patent CA-2261598-A1 (CA)
Title: Method for producing a composite material and material obtained by means of said method
Inventor: LAMACCHI ALBERTO
IPC: B32B38/04
Filed: 1997-06-10
Abstract: A supporting material in the form of sheet or roll, constituted of a cellulosic material, or a rolled section in paper treated with a solution, or a rolled section in melaminic paper, or a mixture of leather regenerated materials or derivatives thereof, or cardboard or cardboard fiber, or needled fabrics, or synthetic or natural rubber, or foam made of reticulated polyethylene with closed cells, or foam made of reticulated polyethylene with closed celle, or natural or synthetic leather, or non-woven fabric, neoprene, masonite, recycled polyethylene, nylon, Lilion~, Tyvec~, polyester or a net made of synthetic material, or cork or wood, or a coagulated material, or felt, or foamed polyurethane, foamed polyethylene, foamed polystyrene, or a perspiring material, or an agglomerated stone-like material, is coupled to a covering layer made of polyethylene or Surlyn~, whereby the upper surface of the covering layer is embossed, in such a way as to imitate another material. This composite material has a high surface resistance, thus being particularly suitable for a plurality of applications; furthermore, said composite material is non-toxic and thus usable for contacting the skin for a long period of time.
Patent CA-2261858-A1 (CA)
Title: High speed process-controlled transresistance amplifier
Inventor: HISSEN JURGEN
IPC: H03F3/50
Filed: 1999-02-12
Abstract: A high speed, low-power transresistance amplifier incorporating a threshold-biased, current-mode feedback inverter. Starvation transistors are connected between the inverter's power supply terminals and the supply. Capacitors are connected between the power supply and the nodes at which the starvation transistors are connected to the inverter to bypass the starvation transistors and decrease the AC impedance of the nodes, as seen by the inverter. A resistive network connected between the starvation transistors and a bias voltage supply decreases the effective DC impedance of the nodes.
Patent CA-2262114-A1 (CA)
Title: Flow controller for mechanical seal protection
Inventor: DUNFORD JOSEPH R
IPC: F16J15/34
Filed: 1997-06-09
Abstract: A flow controller or seal protector is positioned in a seal cavity of rotary fluid equipment to protect the shaft and seal from the effects of abrasives and entrained air. The protector has an annular ring member that is secured to the shaft for rotation therewith. A cylindrical member extends into the cavity from the outer peripheral edge of the ring member and in close surrounding proximity to the seal. At its free or open end the cylindrical member has an outwardly flared portion and flow inducing protrusions are provided adjacent that open end to help impart rotational flow to fluid moving within the seal cavity. Flow inducing vanes or vents may also be provided within the protector at the junction of the ring and cylindrical members. Heavy abrasives are moved along the interior of the protector to exit at the free end and to then be centrifuged outwardly and away from the seal. Air is centrifuged inwardly towards the back of the seal where it will do no harm.
Patent CA-2262826-A1 (CA)
Title: Fossorial rodent control compositions and methods
Inventor: SUTHERLAND DONALD
IPC: A61K36/31
Filed: 1999-02-24
Abstract: A composition for controlling fossorial rodents, in particular gophers, comprises a mixture of water, a foaming agent and a respiratory irritant. The respiratory irritant is preferably finely ground white mustard seeds. The mixture is aerated through a nozzle and pumped into the rodent burrow to exterminate the resident rodent.
Patent CA-2265827-A1 (CA)
Inventor: OLOFSSON LARS
IPC: A61K31/4015
Filed: 1997-09-15
Abstract: The instant invention involves a combination therapy and pharmaceutical compositions comprised of a therapeutically effective amount of a cholesterol reducing agent such as an HMG-CoA reductase inhibitor in combination with a platelet aggregation inhibitor which is useful for inhibiting platelet aggregation, for inhibiting the formation of thrombotic occlusions, and for treating, preventing and reducing the risk of occurrence of cardiovascular and cerebrovascular events and related vaso-occlusive disorders.
Patent CA-2266952-A1 (CA)
Title: Adjustable fill valve assembly
Inventor: NICHOLS-ROY DAVID
IPC: E03D1/32
Filed: 1997-09-17
Abstract: An adjustable height fill valve assembly for controlling water level in a storage tank, comprises a lower riser assembly (12) comprising concentrically disposed inlet riser (18) and an outer riser housing (28), each having an upper end and a lower end, the inlet riser (18) and the riser housing (28) connected together at the lower ends, the inlet riser (18) being adapted for mounting in a hole in a flush tank, an upper riser assembly (14) comprising concentrically disposed inner supply tube (46) and an outer tubular valve housing (48), each having an upper end and a lower end, a main valve seat (50) at the upper end of the inner supply tube (46), the upper riser assembly (14) telescopically mounted on the lower riser assembly (12), a latch (58, 60) between the riser housing (28) and the tubular valve housing (48) for latching the upper (14) and the lower riser assemblies (12) in selected extended and retracted positions, the latch disengageable upon rotation of the upper riser assembly (14) in either direction from a central position, a valve housing cap (96) having a bayonet lock connection for quick connect detachable connection to an upper end of the tubular valve housing (48), a pilot operated main diaphragm valve (94) mounted in the valve housing cap (96) and engageable with the valve seat (50) for controlling flow of water into the valve housing from the supply tube (46), a pressure control chamber (102) in the housing cap (96) above the main diaphragm valve (94) in communication with the inlet tube, a vent port (110) having a vent valued seat (112) in the housing cap for venting the pressure chamber, a unitary float (134) and float arm (116) pivotally mounted on the cap (96) and having a vent valve member (114) mounted thereon for engaging the vent valve seat (112) for closing the vent port (110).
Patent CA-2267000-A1 (CA)
Inventor: MANNING JOHN M
IPC: E04F13/08
Filed: 1999-03-25
Abstract: The present invention comprises a siding unit which is adapted for installation. A preferred embodiment of the siding unit has at least two courses of vinyl siding. The courses of vinyl siding are preferably formed by one or more facing panels which are comprised of polyvinyl chloride. A reinforcing panel is glued or otherwise laminated to the inside of each course of vinyl siding. The reinforcing panel is preferably comprised of expanded or extruded polystyrene.
Patent CA-2268106-A1 (CA)
Title: Process for making rigid and flexible polyurethane foams
Inventor: HUYGENS ERIC
IPC: C08G18/28
Filed: 1997-10-07
Abstract: Process for preparing rigid and flexible polyurethane foams by reacting a polyisocyanate and a polyol in the presence of water and CO2. The foams obtained do not show a major glass transition temperature between -100 ~C and +25 ~C and have improved air flow properties.
Patent CA-2268622-A1 (CA)
Inventor: DROBNIK MICHAEL
IPC: C08J7/043
Filed: 1997-10-17
Abstract: Solventless and waterless primers which are hardenable by radiation, based on hydroxyfunctional prepolymers and cycloaliphatic epoxides, or based on hydroxyfunctional prepolymers and olefinically unsaturated compounds, or based on epoxides and vinyl ethers and cationic or radical initiators, can be applied like usual commercial solventless covering adhesives and permit subsequent in-line coating when there are many coatings, without solvent and/or water having to be volatilized from the primer coating.
Patent CA-2268634-A1 (CA)
Inventor: GREENHAM PETER
IPC: G03B21/32
Filed: 1999-04-12
Abstract: An apparatus for monitoring a condition in a film tape feed arrangement for feeding out film tape from a reel of film tape to a projector comprises sensing means for sensing the tension in the film tape between the film tape feed arrangement and the projector. The apparatus further comprises detecting means arranged to detect a condition in the tape feed arrangement whereby the tension sensed by the sensing means exceeds a predetermined value. An indicator means is provided which is responsive to the detector means detecting the condition for providing an indication of the condition to an operator.
Patent CA-2269026-A1 (CA)
Title: Flood light or luminaire construction
Inventor: KING JEFFREY DAVID
IPC: F21V7/06
Filed: 1997-10-08
Abstract: The present invention relates to luminaries or floodlights and more particularly to reflectors for such floodlights. The present invention is embodied in a reflector that has the one or more of the following features: a combination of two or more different types of reflecting sheet; spectral sheet in a band in a central portion of the reflector; concentrating or concave peened reflecting sheet in a band in a central portion of the reflector; three different parabolic curves forming the reflector all having a common focal line; a visor.
Patent CA-2269921-A1 (CA)
Title: Ionophore-mediated liposome loading of weakly basic drug
Inventor: MAURER NORBERT
IPC: A61K31/475
Filed: 1997-10-30
Abstract: Novel methods are provided for loading a weakly basic drug into liposomes utilizing an electroneutral transport system. In these methods, ionophores are utilized with liposomes having a metal ion gradient to facilitate the exchange of metal ions for protons. The transported metal ion will, in some embodiments, be complexed with a chelating agent which is present in the external media.
Patent CA-2270682-A1 (CA)
Inventor: BERGAMASCHI GIOVANNI
IPC: E06B9/90
Filed: 1999-05-04
Abstract: A mechanism for locking curtains and the like includes a sleeve rotating about a relative axis and fastened to a roll, in coaxial relation therewith. A curtain is rolled up on the roll. A barrel (6) features at least one radial housing (8) opening outside of the barrel (6) and enters freely the sleeve (3). The mechanism includes also one spring (8a) introduced freely in each radial housing (8) and pushing a cylinder or a sphere (7) against an inner surface (3d) of the sleeve (3).
Patent CA-2270775-A1 (CA)
Inventor: KAPIN MICHAEL A
IPC: A61K31/445
Filed: 1996-11-06
Abstract: On décrit des compositions pharmaceutiques utiles en chirurgie ophthalmique. Les compositions contiennent un ou plusieurs antagonistes de la polyamine et sont utiles pour prévenir ou traiter l'excitotoxicité associée à la chirurgie opthalmique. On décrit également des procédés d'utilisation de ces compositions dans le cadre de procédures chirurgicales ophthalmiques.
Patent CA-2272046-A1 (CA)
Title: Clones infectieux de virus a arn et vaccins et titrages de diagnostics derives de ceux-ci
Inventor: POL JOHANNES MARIA ANTONIUS
IPC: A61K39/00
Filed: 1997-10-29
Abstract: L'invention concerne un procédé permettant de produire un clone infectieux basé sur le génome d'un virus à ARN à brin positif présentant un génome d'au moins environ 15 kb. L'invention concerne également un procédé permettant de produire un clone infectieux basé sur le génome d'un virus à ARN, ledit procédé consistant à sélectionner des clones infectieux par transfection d'une cellule hôte avec ledit acide nucléique recombiné, de manière que la cellule hôte soit par essence non susceptible d'une infection par ledit virus. L'invention concerne en outre des virus à ARN modifiés ainsi que des vaccins et des titrages de diagnostics dérivés.
Patent CA-2273781-A1 (CA)
Title: Method of operating a portable communication device
Inventor: GITLIN RICHARD DENNIS
IPC: H04B7/26
Filed: 1999-06-09
Abstract: A method of effectuating a change in the operation of a portable communication device such as a laptop or palmtop computer, a personal digital assistant (PDA), or a cellular telephone. The device can communicate with a remote host or server using one of two or more different communication arrangements. Various signals indicative of the environment in which the device is operating are monitored, to anticipate or predict a change or transition from one communication arrangement to the other. If the change is determined to be both imminent and significant, the operation change is effected substantially simultaneously, by changing parameters in the transport and/or application protocol layer in the device.
Patent CA-2274058-A1 (CA)
Title: Dual chamber tubular container
Inventor: MACK ROBERT
IPC: B65D35/22
Filed: 1997-12-03
Abstract: The dual chamber tubular container is closed at one end by a crimp seal (14) and at the. other end has a dispensing opening with a dividing wall (18). This dividing wall is attached longitudinally to the tubular chamber sidewalls and extends from the crimp seal to the dispensing opening divider wall. The divider wall of the dispensing exit is offset from the crimp seal about 75° to about 110° and preferably about 90°. This enhances the uniform dispensing of the two contained substances.
Patent CA-2276002-A1 (CA)
Inventor: ALBON RICHARD
IPC: G11C7/12
Filed: 1999-06-22
Abstract: A semiconductor memory, for example of the ROM type, comprises columns of memory cells with a bitline for each column connected to the cells of the column. The bitlines are connected via multiplexers to the input of a sense amplifier.  Before column selection, the bitlines are held uncharged. When a column is selected, its bitline is connected to a charging voltage by a pull up transistor.