baber/WOPTO huggingface dataset:
Patent CA-2173323-A1 (CA)
Title: Method and apparatus for delivering a shock with an optimum duration in treating arrhythmias
Inventor: IDEKER RAYMOND E
IPC: A61N1/39
Filed: 1994-09-30
Abstract: The present invention provides apparatus and methods for delivering an optimum electrical shock in treating cardiac arrhyth-mias. The apparatus comprises means for producing an electrical waveform signal at at least two electrodes. The voltage or current of the signal is then detected to determine the signal time constant. The signal time constant is then used in conjunction with a model time constant to determine when the peak amplitude is reached. The waveform is then interrupted when the peak amplitude is reached. Also provided are methods of selecting a cardiac defibrillator by measuring the impedance of implanted electrodes and then select-ing a defibrillator having a capacitor which provides an RC time constant equal to that of a model time constant.
Patent CA-2173648-A1 (CA)
Inventor: MEISTER JACK B
IPC: G01P15/093
Filed: 1996-04-09
Abstract: A vehicle restraint system that includes an impact sensor for sensing a vehicle impact to provide an electrical impact signal, an occupant restraint such as an air bag to restrain motion of a vehicle occupant, and an electronic control circuit responsive to the impact signal for operating the occupant restraint.   The impact sensor includes a permanent magnet axially slidable within a linear cavity and resiliently biased to one end of the cavity, such that vehicle impact forces on the sensor urge the magnet to slide axially toward the opposing end of the cavity against the biasing forces.   A magnetic sensor is disposed adjacent to the cavity and is characterized by providing the electrical impact signal as an analog electrical signal that varies in magnitude as a continuous monotonic function of axial position of the magnet within the cavity.  The electronic control circuit is responsive to the impact signal for analyzing magnitude, slope and duration of the impact signal in order to predict necessity for activating the restraint system, and activating the restraint system when the magnitude slope and duration of the impact signal meet predetermined signal conditions or criteria.
Patent CA-2175360-A1 (CA)
Title: Transmitter freeze/fault detection
Inventor: WALTER HILGER A
IPC: G05B23/02
Filed: 1993-11-19
Abstract: The method for detecting in a controlled apparatus and process the freezing or failure of a sensing process and assembly comprising a sensor generating a sensor output signal and related components converting the sensor output signal into a process signal derived from the sensor output signal, with the sensor being subjected to continuous transient variations due to process noise in the controlled apparatus and process, comprises the steps of: determining in real-time processing mode an estimate of the standard deviation of the process signal comparing the estimate of the standard deviation of the process signal with at least one predetermined reference value, and producing an unacceptability signal if the comparison results in the determination of unacceptable deviation between the compared values. Further, an apparatus for detecting in a controlled apparatus and process the freezing or failure of a sensing process and assembly is described.
Patent CA-2182529-A1 (CA)
Inventor: BAYER HERBERT
IPC: C07D307/56
Filed: 1995-01-03
Abstract: L'invention concerne des dérivés d'acide phénylacétique de la formule (I) dans laquelle les substituants et l'indice ont la signification suivante: X désigne NOCH¿3?, CHOCH¿3?, CHCH¿3? ET CHCH¿2?-CH¿3?; R?1¿ désigne hydrogène et alkyle; R?2¿ désigne cyano, nitro, trifluorométhyle, halogène, alkyle et alcoxy; m vaut 0, 1 ou 2, les restes R?2¿ pouvant être différents, si m vaut 2; R?3¿ désigne hydrogène, cyano, nitro, hydroxy, amino, halogène, alkyle, halogénure d'alkyle, alcoxy, halogénure d'alcoxy, alkylthio, alkylamino ou dialkylamino; R?4¿ désigne hydrogène, cyano, nitro, hydroxy, amino, halogène, alkyle éventuellement substitué, alcoxy, alkylthio, alkylamino, dialkylamino, alcényle, alcényloxy, alcénylthio, alcénylamino, N-alcényl-N-alkylamino, alkinyle, alkinyloxy, alkinylthio, alkinylamino, N-alkinyl-N-alkylamino, cycloalkyle éventuellement substitué, cycloalkyle, cycloalkyloxy, cycloalkylthio, cycloalkylamino, N-cycloalkyl-N-alkylamino, cylcoalcényle, cylcoalcényloxy, cycloalcénylthio, cycloalcénylamino, N-cycloalcényl-N-alkylamino, hétérocycyle, hétérocyclyloxy, hétérocyclylthio, hétérocyclylamino, N-hétérocyclyl-N-alkylamino, aryle, aryloxy, arylthio, arylamino, N-aryl-N-alkylamino, hétaryle, hétaryloxy, hétarylthio, hétarylamino, N-hétaryl-N-alkylamino; R?5¿ désigne hydrogène, alkyle éventuellement substitué, cycloalkyle, alcényle, alkinyle, alkylcarbonyle, alcénylcarbonyle ou alkylsulfonyle; aryle éventuellement substitué, arylcarbonyle, arylsulfonyle, hétaryle, hétarylcarbonyle ou hétarylsulfonyle. L'invention concerne par ailleurs les sels de ces dérivés, leur procédé de préparation et les produits intermédiaires utilisés à cet effet, ainsi que leur utilisation.
Patent CA-2187241-A1 (CA)
Inventor: AGEE RALPH K
IPC: E04D13/08
Filed: 1996-10-07
Abstract: A freeze-resistant downspout system includes a metal downspout having an interior portion within a building and a contiguous exterior portion outside thebuilding. The exterior portion is shielded from the weather by a thermally insulated shroud so that heat conducted along the downspout from within the building is sufficient to keep the exterior portion from freezing.
Patent CA-2187683-A1 (CA)
Inventor: TANIMURA YASUHIRO
IPC: A61L2/02
Filed: 1996-10-11
Abstract: By use of a gas containing a low concentration of ozone and a high concentration of ions, so that the multiplication of microorganisms can be safely and fully prevented by an additive effect of ozone and ions.  While the generation of ozone is suppressed by suppressing the discharge current with a pulse converter being provided for controlling the current flowing at the time of discharge to be made for the generation of ions and ozone in the ionization chamber, ions are produced in a high concentration to produce and supply ionized gas containing a low concentration of ozone and a high concentration of ions to objects.
Patent CA-2188176-A1 (CA)
Inventor: PETIT SERGE
IPC: A61K8/00
Filed: 1996-10-17
Abstract: 2,3-dihydroxy propyl 2-amino(1-oxo alkyl) 2-desoxy-glucopyranosides of formula (I) are new. R = 5-21(pref. 7-17)C alkyl.
Patent CA-2188839-A1 (CA)
Title: Recovery of gas from drilling fluid returns in underbalanced drilling
Inventor: SPEED DAVID
IPC: E21B21/00
Filed: 1996-10-25
Abstract: The drilling fluid returns from underbalanced drilling are introduced into a separator and a separate gas stream is recovered. The gas stream is cleaned at the well site to remove entrained liquid and particulate solids, to produce gas suitable to be fed to a compressor. The cleaned gas is compressed to re-injection pressure and recycled to the well.
Patent CA-2192216-A1 (CA)
Title: Insect swatting and collecting apparatus
Inventor: WADE BILL R
IPC: A01M3/02
Filed: 1995-06-06
Abstract: A bug collecting apparatus (10) comprising a frame (15) with a handle portion (16), and extending from the frame (15), is a removable net with an adhesive disposed thereon and may further include an insecticide disposed thereon. The net is supported in the frame (15) by a mounting member (20), which is mounted in a semi-circular portion (18) of the frame (15). The mountingmember (20) is removable from the frame (15) and is held in place by a tab and a retaining peg.  The apparatus (10) is further adapted to prevent the net from contacting a surface on which it is placed.
Patent CA-2192765-A1 (CA)
Title: Water-retardent, easy-tearing film lamina
Inventor: KAO CHENG-KANG
IPC: B32B27/30
Filed: 1996-12-12
Abstract: A water-retardant and easy-tearing film lamina is disclosed. The lamina (referring to the printing papers like labelstock) is laminated on top with a film of biaxial oriented polypropylene (BOPP) to retard the encroachment of water; or a printable prepared layer is applied on top of the film of biaxial oriented polyproprylene (BOPP).      Further, the biaxial oriented polypropylene (BOPP) can be laminated at both upper and lower sides with a layer of fastening agent respectively which is further applied on top with a releasing layer. In the film of the biaxial oriented polypoprylene (BOPP) is pre-cut with tracks or openings of different shapes such as circle or rectangle at a proper interval so that the lamina can be easily torn apart at the pre-cut tracks or openings to provide a easy-tearing as well as water-retardant film lamina.
Patent CA-2195087-A1 (CA)
Title: Saline solution for treating contact lenses
Inventor: ASGHARIAN BAHRAM
IPC: C11D3/20
Filed: 1995-07-17
Abstract: Improved saline solutions useful in treating contact lenses are described.  Unlike prior saline solutions used for similar purposes, the present solutions do not contain conventional antimicrobial agents which are potentially toxic to ocular tissues. Rather, the solutions contain a combinaison of a borate-polyol complex, one or more anionic or nonionic surfactants, and a low molecular weight amino acid (e.g., glycine). It has been found that this combination effectively preserves the saline solutions from antimicrobial contamination, is relatively nontoxic to ocular tissues, and is compatible with oxidizing agents used in certain contact lens disinfecting systems. The combination also facilitates the cleaning of contact lenses.
Patent CA-2195544-A1 (CA)
Title: Laminate for precise application of graphics to a substrate
Inventor: SUNDET DOUGLAS C
IPC: C09J7/22
Filed: 1995-07-10
Abstract: Known laminates can be used to apply graphics to glass panels to present an etched or sand-blasted appearance. Such graphics, whic h have been cut from a decorative polymeric film of a laminate, can be applied more easily, quickly, and with greater precision when the cover sheet of the laminate is a vented transparent polymeric sheet which beats a layer of removable pressure-sensitive adhesive that has been pressed against the graphics. Coextensive with each of the graphics is a layer of aggressive pressure-sensitive adhesive by which the graphics can be applied to a glass panel while wet with a detergent/alcohol/water solution that permits them to be repositioned by a user who can see the graphics through the vented transparent sheet. Positioning is enhanced when the vents are perforations arranged in an orderly pattern such as a rectangular grid.
Patent CA-2199278-A1 (CA)
Inventor: VASS GABOR I
IPC: B64C39/06
Filed: 1995-09-05
Abstract: A circular wing aircraft (10) in the form of a helicopter (12) comprising a fuselage (14) and a circular wing assembly (16). A structure (18) is for mounting the circular wing assembly (16) above the fuselage (14) in a stationary manner. An air impeller unit (20) is rotatively carried within the circular wing assembly (16). A device (22) is for driving the air impeller unit (20) to rotate about a central axis (24) within the circular wing assembly (16), so as to provide lift and flight movement while yaw control is maintained.
Patent CA-2202059-A1 (CA)
Title: Method for manufacturing a miniaturized mass spectrograph
Inventor: YOUNG ROBERT M
IPC: H01J49/28
Filed: 1995-09-21
Abstract: A method for forming a solid state mass spectrograph for analyzing a sample gas is provided in which a plurality of cavities are formed in a substrate, preferably, a semiconductor. Each of these cavities forms a chamber into which a different component of the mass spectrograph is provided. A plurality of orifices are formed between each of the cavities, forming an interconnecting passageway between each of the chambers. A dielectric layer is provided inside the cavities to serve as a separator between the substrate and electrodes to be later deposited in the cavity. An ionizer is provided in one of the cavities and an ion detector is provided in another of the cavities. The formed substrate is provided in a circuit board which contains interfacing and controlling electronics for the mass spectrograph. Preferably, the substrate is formed in two halves and the chambers are formed in a corresponding arrangement in each of the substrate halves. The substrate halves are then bonded together after the components are provided therein.
Patent CA-2204731-A1 (CA)
Title: Novel monoclonal antibody having inhibitory activity against type ii phospholipase a2 and protein comprising a part thereof
Inventor: YASUNAGA TOMOE
IPC: C12P21/08
Filed: 1995-12-27
Abstract: A novel monoclonal antibody inhibiting the activity of type II phospholipase A2. The antibody inhibits the activity of human type II phospholipase A2 and those of ape type II phospholipase A2 and/or mouse type II phospholipase A2, which makes it not only clinically useful but also usable as such in preclinical tests with the use of ape or mouse. The antibody, which has a completely novel characteristic of releasing type II phospholipase A2 bound to cell membrane, seems to strongly inhibit the type II phospholipase A2 activity via a novel mechanism. A protein containing the monoclonal antibody or a part of the same and being usable as a remedy for heart infarction, brain infarction, etc. in which type II phospholipase A2 participates.
Patent CA-2204846-A1 (CA)
Title: Pharmaceutical compounds
Inventor: HARRIS JOHN RICHARD
IPC: C07F9/09
Filed: 1997-05-08
Abstract: A pharmaceutical compound of the formula:     (see fig. I) in which R1 is hydrogen, hydroxy or C1-6 alkoxy, R2 is hydrogen, carboxy, tetrazolyl, -SO2H, -SO3H, -OSO3H, -CONHOH, or -P(OH)OR', -PO(OH)OR', -OP(OH)OR' or -OPO(OH)OR' where R' is hydrogen, C1-6 alkyl, C2-6 alkenyl or aryl C1-6 alkyl, R3 is hydrogen, hydroxy or C1-4 alkoxy, and R4 is fluoro, trifluoromethyl, nitro, C1-6 alkyl, C3-7 cycloalkyl, C2-6 alkenyl, C2-6 alkynyl, C1-6 alkylthio, heteroaryl, optionally substituted aryl, optionally substituted aryl C1-6 alkyl, optionally substituted aryl C2-6 alkenyl, optionally substituted aryl C2-6 alkynyl, optionally substituted aryloxy, optionally substituted aryl C1-6 alkoxy, optionally substituted arylthio, optionally substituted aryl C1-6 alkylthio or -CONR''R''', -SO2NR''R''', -NR''R''', -OCONR''R''' or -SONR''R''' where R'' and R''' are each hydrogen, C1-6 alkyl or aryl C1-6 alkyl, or R'' and R''' together form a C3-7 alkylene ring;   provided that (i) R1, R2 and R3 are not all hydrogen,and (ii)  when R2 and R3 are hydrogen and R1 is hydroxy, R4 is not fluoro;   or a salt or ester thereof.
Patent CA-2205216-A1 (CA)
Title: Reciprocating screening conveyor
Inventor: HUGHES JOHN H
IPC: B07B1/00
Filed: 1997-05-12
Abstract: A screening conveyor (10) for conveying particulate matter, such as comminuted wood fiber, in a forward direction while screening the particulate matter to separate particles that are over a predetermined size from small particles that are under a predetermined size. The screening conveyor includes a frame (17, 50) andfirst and second conveyor bed sections (16, 30) that are supported by the frame.Each conveyor bed section defines a longitudinal axis and an upper surface (22) that is formed from a tiled series of trough shaped trays (20).  Each tray defines a step including an ascending surface portion (96).  The upper surface of each conveyor bed sections thus has a saw-toothed longitudinal profile, defining a series of transverse steps.  The first and second conveyor bed sections are reciprocated in opposing balanced fashion along the longitudinal axis by a motor (48), cam assembly (54) and connecting rods (64, 66).  The received particulate matter is carried on the stepped upper surfaces of the reciprocating conveyor bed and thrown forwardly from tray to tray.  The upper surfaces of the conveyor bed sections further each define a plurality of apertures of predetermined size.  Particulate matter is screened through first screening apertures (34) in the first conveyor bed section, with material below a predetermined size falling onto the second conveyor bed section.  Material that is over the first predetermined size is supplied to a recycle conveyor (38) for further comminuting.  Material that passes through the first screening apertures falls onto the second conveyor bed section, and is further screened through second screening apertures (42) of a second predetermined size formed in the second conveyor bed section.  Fine particles pass through the second screening apertures, and acceptable product is discharged from the discharge end (32) of the second conveyor bed section.
Patent CA-2206638-A1 (CA)
Title: Centrifugal compressor hub containment assembly
Inventor: PRINGNITZ STEVEN J
IPC: F01D21/04
Filed: 1995-12-19
Abstract: To contain high energy fragments generated by a hub burst, a compressor containment assembly in a gas turbine engine includes a diffuser housing having an arcuate portion that defines a channel which traps the high energy fragments and an axial facing U-shaped portion which imparts flexibility. The assembly also includes a concave back shroud having a series of grooves that create resistance for the fragments as they slide along its surface. At its radial outer end the back shroud has an annular rim that absorbs some of the energy and delays the shearing of bolts. A bumper is disposed between the back shroud and a turbine wheel to limit the deflection of the back shroud during a hub burst.
Patent CA-2207460-A1 (CA)
Inventor: JANSEN HUBERT
IPC: A61M5/178
Filed: 1997-06-11
Abstract: A sequential stopper having structural features for facilitating substantially complete delivery of fluid held within a syringe barrel. The sequential stopper features a stopper body having a cylindrical side wall, proximal and distal ends, and one or more circumferentially-disposed sealing elements thereabout. One of the circumferentially-disposed sealing elements may be located adjacent the proximal end of the stopper body. An elongate hollow chamber is disposed within the stopper body parallel to the longitudinal axis of the stopper body. A pair of longitudinal sealing elements are disposed on the cylindrical side wall of the stopper body and are separated on the sidewall by a distance greater than a maximum width displayed by the elongate hollow chamber disposed within the stopper body. A recessed surface is disposed between the longitudinal sealing elements adjacent the proximal end of the stopper body. In one embodiment, the recessed surface is formed as a sloping surface extending obliquely from the proximal end of the stopper body towards the cylindrical side wall of the stopper body. A distally-directed conically-shaped projection is located at the distal end of the stopper body. The projection includes a wedge formed through a portion of the conically-shaped projection. Fluid force exerted on the proximal end of the stopper body will be directed towards the sloping surface. Continued fluid force will cause collapse of the cylindrical side wall in the area located between the longitudinal sealing elements, thereby establishing a fluid conduit between the proximal and distal ends of the stopper body. The distally-directed conically-shaped projection prevents accumulation of fluid between the distal end of the stopper body and the internal shoulder located at the distal end of the syringe barrel, while the wedge permits fluid passing through the fluid conduit to exit the syringe barrel.
Patent CA-2208826-A1 (CA)
Inventor: LUQUEZ ANTONIO
IPC: E06B9/171
Filed: 1997-06-25
Abstract: A unique roller blind apparatus for use on the inside of window frames,  for blocking sunlight, providing a safety barrier  reducing break  and  enter by  thieves  and   having insulating characteristics.   The apparatus having sufficiently high insulating value keeps the temperature of the  immediate area around a window to be about the same temperature as the rest of the room,  even on extremely hot or cold days;  the apparatus also provides the ability to vary the percentage of ambient light passing through; and it provides an effective barrier against breaking and entering through a window.    A series of horizontal slats having a high insulating value and having a shape such that they interlock with one another when lowered to rest, are hung by a plurality of chains passing through each of them at common positions, attached to a spool controlled by a high torque gearbox driven by a handle requiring minimal input turning force.  The apparatus is used to insulate windows from heat,  cold and to vary the amount of sunlight passing through.   The slats when raised do not rest upon one another,  but  are  kept  separate by a  ring  stopper or  its equivalent, placed between each slat at common positions among the supporting chains.
Patent CA-2209042-A1 (CA)
Inventor: HILFORD MARK LINDSAY
IPC: A44B11/25
Filed: 1997-07-21
Abstract: The invention relates to a "Locking Child Seatbelt Buckle Container". The invention encases a fastened seatbelt buckle making it impossible for a child to press the seatbelt buckle release button. The main purpose of the invention is to prevent children from removing their seatbelts without their guardian's permission. The invention consists of a bottom piece (6) into which a fastened seatbelt buckle (13) can be placed. A top piece (1) can be locked snugly in place over the bottom piece (6) creating a container encasing the fastened seatbelt buckle. The belt portion of the seatbelt enters and exits the container through two holes which are large enough to allow passage of the seatbelt, but small enough to prevent passage of the fastened seatbelt buckle.
Patent CA-2209441-A1 (CA)
Inventor: ACKLEY MARK WILLIAM
IPC: B01D53/04
Filed: 1997-06-30
Abstract: Multiple thermal pulses are employed to regenerate segments of an adsorber bed simultaneously in thermal swing adsorption processes. The invention is particularly applicable to air purification as it helps to reduce purge flow and improve regeneration efficiency.
Patent CA-2211683-A1 (CA)
Title: Unit dose skin care package
Inventor: BELIM LISA ANN
IPC: B65D81/32
Filed: 1996-01-19
Abstract: A unit dose package has two chambers (10, 14) separated by a frangible seal (18). A liquid or solvent (22) is provided in one of the chambers (10). An absorptive pad (26) and powder are provided in the other chamber (14). The liquid (22) and powder are stored separately, to avoid decomposition of the unstable mixture. In use, the first chamber (10) is squeezed or rolled, bursting the seal (18), and driving the liquid into the second chamber, where it dissolves the powder and is absorbed by the pad (26). The package is peeled and torn open, and the pad (26) is removed and applied to the skin.
Patent CA-2216254-A1 (CA)
Title: Video viewfinder
Inventor: CAMERON MICHAEL H
IPC: H04N5/225
Filed: 1996-03-21
Abstract: A hand-held video viewfinder for simultaneously viewing a scene and recording the scene using a video camera (50) is disclosed. An optical assembly (12) includes an optical housing body having a lens mounting bracket (20) for receiving a primary camera lens (22). The primary camera lens (22) is selected to correspond to the same motion picture or video lens which will be used during the actual filming of the particular scene. A removable ground glass relay lens (30) having visible etched format lines corresponding to the aspect ratio chosen for the particular production is received within a barrel-shaped receiving section (32) of the optical housing body. The ground glass relay lens (30) may be inserted and removed from the barrel-shaped receiving section (32). A sighting tube (44) is coupled to the optical housing permitting a user to view the scene by viewing the scene through the sighting tube (44), the ground glass relay lens (30) and the primary camera lens (22). A video camera (50) is coupled to the optical housing through an intermediate lens (52) and is provided with a view of the scene by a beam splitter and turning mirror disposed between the sighting tube (44) and the ground glass relay lens (30).  The video camera (50) provides a video signal corresponding to the scene as viewed by the user through the relay lens (52) and the selected primary camera lens (22).