baber/WOPTO huggingface dataset:
Patent CA-2069896-A1 (CA)
Title: Uninterrupted power supply system having improved power factor correction circuit
Inventor: JOHNSON ROBERT W JR
IPC: H02J9/06
Filed: 1990-11-06
Abstract: 2069896 9107808 PCTABS00005 An uninterrupted power supply (UPS) system (10) is provided with a power factor correction circuit (30). The UPS system includes a rectifier (D1, D2) having input terminals (12, 14) for connection to an AC utility power source (32) and ouput terminals (+DC, -DC). The power factor correction circuit is operatively connected to the input and output terminals of the rectifier to cause the UPS system to exhibit substantially unity power factor to the AC  utility power source.
Patent CA-2070432-A1 (CA)
Title: Telemetry format
Inventor: WYBORNY PAUL B
IPC: A61B5/00
Filed: 1991-01-15
Abstract: A method and apparatus are disclosed for telemetering both analog and digital data from an implantable medical device to an external receiver, such as between an implanted cardiac pacer and its external programming equipment. Analog data is first converted to digital format by an analog-to-digital converter, such that the transmission is digital data. A damped carrier at 175 kilohertz is pulse position modulated by the data. The modulation scheme defines a frame of slightly less than 2 milliseconds. The frame is divided into 64 individual time periods using a crystal clock. The data, along with synchronization and identification codes, are positioned into predefined ranges within each frame as measured by the individual time periods. The data is uniquely identified by the position of a burst of the carrier within the predefined range. This modulation scheme enables necessary data to be transmitted at sufficiently high rates with reduced power requirements thereby conserving the internal battery of the implantable device.  This modulation scheme provides flexibility of use, for example, with complex medical devices where transmission of increased volumes of data is desirable, such as cardiac devices having dual-chamber or multisensor capabilities, and for controlling particular conditions, such as tachyarrhythmia.
Patent CA-2073077-A1 (CA)
Inventor: WINDON BRADLEY N
IPC: F23L17/00
Filed: 1992-07-03
Abstract: A water heater comprising a tank defining a water chamber, a combustion chamber located beneath the water chamber, a flue extending through the water chamber, having a lower end communicating with the combustion chamber, and having an upper end, and a power vent blower assembly including a blower having an inlet and an outlet, and a conduit adapted to communicate with the ambient atmosphere of the water heater, the conduit including a first end communicating with the upper end of the flue, a second end communicating with the blower inlet, and structure for mixing gases from the flue with air from the ambient atmosphere of the water heater, the mixing structure including a first projection extending inwardly and in the direction of gas flow through the conduit on one side of the conduit, and a second projection extending inwardly and in the direction of gas flow through the conduit on the other side of the conduit.
Patent CA-2073693-A1 (CA)
Title: Non-woven fibrous materials
Inventor: FARMER DAVID B
IPC: D04H1/587
Filed: 1991-11-13
Abstract: A binding composition for non-woven fibrous materials comprises a copolymer emulsion based on at least 30 % by weight vinyl alkanoate and uses N-(n-butoxymethyl) acrylamide (NBMA) as post polymerisation cross-linking agent to reduce formaldehyde emission.
Patent CA-2077886-A1 (CA)
Title: Production of .beta.-form thiamine hydrochloride crystals
Inventor: ASOGAWA TATSUO
IPC: C07D417/06
Filed: 1992-09-09
Abstract: Abstract A method of producing .beta.-form thiamine hydrochloride crystals which comprises moistening  .alpha.-form thiamine hydrochloride crystals in the presence of .beta.-form thiamine hydrochloride crystals as seed crystals and stirring the mixture and a method of producing pharmaceutical preparations containing .beta.-form thiamine hydrochloride crystals which comprises moistening .alpha.-form thiamine hydrochloride crystals, together with a binder, with water in the presence of .beta.-form thiamine hydrochloride crystals as seed crystals and stirring the mixture.      .beta.-Form thiamine hydrochloride crystals which are stable and resistant to caking and pharmaceutical preparations containing the same can be produced in a simple and easy manner.
Patent CA-2079464-A1 (CA)
Inventor: O'REILLY NEIL J
IPC: C07C51/00
Filed: 1991-04-02
Abstract: 3,4,6-trifluorophthalic acid is prepared in high yield by reaction of a 3,4,6-trichloro-N-substituted phthalimide with potassium fluoride at temperatures in the range of 200· to 270 ·C in the absence of a catalyst to form the corresponding trifluoro-N-substituted phthalimide which, in turn, is hydrolyzed to form the 3,4,6-trifluorophthalic acid.
Patent CA-2086903-A1 (CA)
Title: Fastener assembly useful as drain plug
Inventor: JONES JAMES D JR
IPC: F01M11/00
Filed: 1993-01-07
Abstract: A fastener assembly comprises a metal screw and a sealing ring made from an elastomeric material and is useful, in an exemplary application, as a drain plug for an oil pan for an internal combustion engine.  The screw head has an undercut, annular recess, within which the sealing ring is seated.  The sealing ring has a sealing portion, which when unstressed has an axial thickness smaller than the recess depth, and an adjoining portion or web extending radially inwardly. When unstressed, the adjoining portion has an inner diameter smaller than the major diameter of the threaded portion of the screw shank.  The sealing ring when unstressed has an outer diameter larger than the outer diameter of the recess.  Moreover, the recess volume is sufficient for the recess to contain the sealing ring over a wide range of cumulative, dimensional tolerances.
Patent CA-2087553-A1 (CA)
Inventor: ERIKSSON LARS
IPC: B62B3/06
Filed: 1993-01-19
Abstract: A materials-handling fork-lift truck has a chassis which is fitted with two forwardly-extending, mutually-parallel support legs, and a chassis-mounted lifting mast assembly with a raisable and lowerable lifting fork. The lift mast assembly can be moved along the support legs, between a first, mast-withdrawn position and a second, mast-extended position, in which the lifting fork is located close to the outer ends of the support legs. The lifting mast assembly is adapted to be supported on the support legs, and a linkage mechanism is provided for effecting movement of the mast assembly along the support legs. The linkage mechanism is also adapted to constitute a horizontal support for the mast assembly.
Patent CA-2087933-A1 (CA)
Title: Compressible Roller
Inventor: CARLSON JAMES R
IPC: B41F13/08
Filed: 1993-01-22
Abstract: A compressible roller (10) especially useful in high speed printing systems consists of a rigid core (11) of a first relatively thick layer (12) of compressible foam which is bonded to the core, an elastomeric seal (14) bonded to the foam; and an outer print layer (13) of a compatible elastomer bonded to the seal. A method of preparing the roller also is disclosed.
Patent CA-2091708-A1 (CA)
Inventor: SPINELLI JULIO C
IPC: A61N1/00
Filed: 1993-03-16
Abstract: A cardiac rhythm management device is described in which the rate controlling parameter of a rate adaptive pacemaker is the heart's total active time. The active time is evaluated using the intraventricular impedance technique, the active time being the length of the interval between the onset of contraction and the point where a line passing through two points on the fast filling segment of the impedance wave form reaches the impedance level corresponding to the end-diastole impedance of the preceding beat.      The approach results in a upper rate limit corresponding to the maximum heart rate that does not compromise circulatory function, e.g., result in a decrease in cardiac output, or an increase in cardiac workload without an associated increase in cardiac output.      The application also teaches the use of the heart's total active time as an indication of hemodynamic instability for triggering a defibrillation.
Patent CA-2094076-A1 (CA)
Inventor: CUGOLA ALFREDO
IPC: A61K31/40
Filed: 1993-04-15
Abstract: Abstract The invention relates to compounds of formula (I).                     (I) or a salt, or metabolically labile ester thereof wherein R represents a group selected from halogen, alkyl, alkoxy, amino, alkylamino, dialkylamino, hydroxy, trifluoromethyl, trifluoromethoxy, nitro, cyano, SO2R1 or COR1 wherein R1 represents hydroxy, methoxy, or amino; m is zero or an integer 1 or 2; A represents an ethynyl group or an optionally substituted ethenyl, or cyclopropyl group or a substituted ethenyl group; X represents -O- or NH; R2 represents an aryl group and when X represents an oxygen atom R2 may also represent a hydrogen atom or an alkyl group; which are antagonists of excitatory amino acids, to processes for their preparation and to their use in medicine.
Patent CA-2095012-A1 (CA)
Title: Solderless electrical connector
Inventor: KNOX GEORGE J
IPC: H01R4/24
Filed: 1991-12-27
Abstract: An electrical connector formed of a polyolefin is more compliant than the connectors formed of polycarbonate and there- fore the cap and base are formed with interlocking wedging elements to resis t separation of the cap from the base prior to closing the connector onto a plurality of wires for making a connection therebetween .
Patent CA-2100677-A1 (CA)
Title: Process for cleaving emulsions or the like
Inventor: PENTH ELFIE
IPC: C10M175/04
Filed: 1992-01-14
Abstract: A process is disclosed for cleaving spent emulsions such as cooling lubricants by means of carbon dioxide under pressure, and if necessary, heat in an economic and environment-friendly manner.  The emulsion of cooling lubricant is saturated under pressure with carbon dioxide and is heated and/or cooled until cleavage is achieved. Above the cleavage temperature, a floating, water-poor oil phase quickly forms above an oil-poor aqueous phase.
Patent CA-2100793-A1 (CA)
Title: Adaptive power control for a spread spectrum communications system and method
Inventor: SCHILLING DONALD L
IPC: H04B1/707
Filed: 1992-11-18
Abstract: An apparatus and method for adaptive-power control of a spread-spectrum transmitter of a mobile sta-tion operating in a cellular-communications network us-ing spread-spectrum modula-tion. A base station transmits a first spread-spectrum sig-nal. A mobile station has an automatic-gain-control cir-cuit (72) for generating an AGC-output signal, from a received signal. The received signal includes the first spread-spectrum signal and an interfering signal. The mo-bile station also has a correla-tor (74) for despreading the AGC-output signal, a power-measurement circuit respon-sive to processing the re-ceived signal with the des-pread AGC-output signal for generating a received-power level, a comparator (70) coupled to the power-measurement circuit for generating a comparison signal by comparing the received-power level to a threshold level, a transmitter (58) for transmitting a second spread-spectrum signal, an antenna (56), and a variable-gain device (77) responsive to the comparison signal for adjusting a transmitter-power level of the second spread-spectrum signal.
Patent CA-2102744-A1 (CA)
Inventor: MUELLER WALTER B
IPC: B32B27/08
Filed: 1993-11-09
Abstract: The present invention is directed to a film suitable for packaging medical solutions and other pH sensitive products. Product pH is controlled by including an ionomer resin blended with a vinyl carboxylate copolymer in a film layer or adhesive. Alternatively, the ionomer may be present as either a core layer, strength layer, or other distinct layer positioned between the sealant layer and the vinyl carboxylate copolymer containing layer.
Patent CA-2104490-A1 (CA)
Inventor: HOWARD FRANK C
IPC: B25C1/04
Filed: 1993-08-20
Abstract: In a pneumatically powered or combustion-powered fastener-driving tool including a nosepiece, a mechanism is provided for positioning the tool relative to an opening in a workpiece to be fastened to another workpiece.  A probe connected to an actuator used in such a tool, preferably via a spring strip, so as to be laterally movable extends into the opening to align the nosepiece so that a fastener can be precisely driven. The probe has a surface engageable by a driven fastener to move the probe laterally and from the opening as the tool recoils.  Optionally, a guide spaced from the probe and mounted pivotally is adapted to bear against the workpiece with the opening.  The probe and the guide have respective grooves defining a channel for guiding a driven fastener.
Patent CA-2104911-A1 (CA)
Title: Cutting device
Inventor: HAMPEL SVEN
IPC: A61B17/32
Filed: 1993-08-26
Abstract: Abstract A cutting device for a surgical instrument (1), especially for a laparoscopic instrument, for the cutting of binding elements, such as ligature binders (20), surgical suture material, etc. or of other objects is described, the end-piece which is to be cut off (26) of the object being drawn in by the instrument (1) until a thicker section of the object, such as the headpiece (24) of a ligature binder (20) or a knot in surgical suture material, etc., reaches the vicinity of an instrument head (3). The cutting device  (5)  has a cutting part arranged at the instrument head (3), the cutting edge of the cutting part being moved essentially transversely through the end-piece (26) by an actuation part engaging at the thicker section (24) upon the continued drawing-in of the end-piece (26) which is severed when a pre-set force is exceeded.            (Figure 1)
Patent CA-2104961-A1 (CA)
Title: Nondistorted polyethylene foam structures and process for making
Inventor: MALONE BRUCE A
IPC: B32B/
Filed: 1992-02-21
Abstract: Disclosed is a closed-cell, non-crosslinked foam structure of a ratio of minor dimension to major dimension of 1/8 or less comprising a plurality of coalesced extruded strands or profiles of a foamed polyolefin composition having an average cell size of from 0.02 to 0.5 millimeters. The cross-sectional geometry of the foam structure substantially corresponds to the overall arrange-ment of the orifices of the die from which the foamed polyolefin composition was extruded. Further disclosed is a process for making the above foam structure comprising extruding a foamable polyolefin composition through the multiorifice die to form the structure.
Patent CA-2106748-A1 (CA)
Title: Packaging container
Inventor: ROSEN AKE
IPC: B65D17/50
Filed: 1993-09-22
Abstract: ABSTRACT OF THE DISCLOSURE      The invention relates to a packaging container (1) manufactured from thermoformable plastic and wholly recyclable. The packaging container (1) consists partly of a thermoformed hollow body (2) and partly of a thermoformed part (3) which covers the opening of the hollow body. The hollow body (2) is provided in its upper plane (4) with an opening arrangement (10). The upper plane (4) makes an angle which is larger than 90° with the front plane (5) and the bottom plane makes an angle which isless than 90° with the front plane (5). The front plane (5) makes an angle with both of the side planes (7, 8) each larger than 90°.
Patent CA-2107028-A1 (CA)
Title: Hose and Tool Rack for Upright Cleaner and Method for Mounting
Inventor: MCKNIGHT DARWIN T
IPC: A47L9/00
Filed: 1993-09-27
Abstract: A rear mounted hose and tool rack is provided for an upright vacuum cleaner.  The hose and tool rack receives and maintains various tools and attachments within a confined envelope maintained rearwardly of the lower handle assembly of the vacuum cleaner.  The rack is formed of a flexible plastic material to accommodate ease of attachment thereto.  A central opening in the rack may be passed over the upper handle assembly such that a pocket at the top of the opening may engage an upper surface of the lower handle assembly while spaced apart tabs extending into the opening engage opposite surfaces of the lower handle assembly to complete the secured engagement.  Attachment of the rack to the upright cleaner is further facilitated by the flexible and deflectable nature of the rack itself which allows the tabs to be deflected while being positioned for ultimate secured engagement.  The central opening of the rack is substantially congruent with the lower handle assembly configuration to provide further strength and rigidity to the final structure.
Patent CA-2107993-A1 (CA)
Title: Disinfecting shampoo composition for animals
Inventor: ANDREWS JEFFREY F
IPC: A61K8/365
Filed: 1992-06-04
Abstract: A shampoo composition and related process for disinfecting; cleansing, conditioning, and moisturizing the skin and coat of an animal. The composition involves the use of a fatty acid monoester of a polyhydroxy alcohol, such as monolaurin, as an an-timicrobial agent.
Patent CA-2109200-A1 (CA)
Title: Scaffolding unit and work platform
Inventor: BINYON CHRISTOPHER
IPC: E04G1/14
Filed: 1992-04-24
Abstract: A work platform and scaffolding unit are disclosed. The work platform is made up of a number of scaffolding units assembled in various configurations. Each scaffolding unit has two posts (1) and at least two cross bars (2). The posts have a belled lower end (6) and a swaged top (5) which fit together to provide the assembly. Rigidity is obtained by two spaced apart points of contact in the joints.
Patent CA-2109339-A1 (CA)
Title: Diamond bearing assembly
Inventor: DAMM OLIVER F R A
IPC: F16C17/26
Filed: 1993-10-27
Abstract: ABSTRACT          The invention concerns a diamond bearing assembly for a downhole motor. The assembly (10) includes at least one set of opposing, relatively rotating thrust bearing rings (20,22) each of which includes an annular support element (24, 30) and PCD compacts (26, 32) carried by the support elements. The PCD compacts of the bearing rings oppose one another at a thrust bearing interface (80). Shear limiting means (96, 110) are provided. These means are arranged to shear if frictional forces between the opposing PCD compacts at the thrust bearing interface exceed a critical level. This eliminates relative rotation between the bearing rings and avoids possible overheating and thermal degradation of the PCD. The shear limiting means can also serve as an alignment means to ensure correct axial alignment of the bearing components. The bearing assembly may also include a compact radial bearing capability.
Patent CA-2112109-A1 (CA)
Title: Improvements in or relating to contrast agents
Inventor: BERG ARNE
IPC: A61K49/22
Filed: 1992-07-03
Abstract: Ultrasound contrast agents comprising a microbubble-generating suspension of a microparticulate X-ray contrast agent in a liquid carrier medium.
Patent CA-2112328-A1 (CA)
Title: Back rest for a lifting apparatus
Inventor: SCHMIDT PETER
IPC: A61G7/10
Filed: 1993-12-23
Abstract: ABSTRACT OF THE DISCLOSURE            A back rest  (10)  capable of being mounted on a lift platform of a lifting apparatus has a foot part  (12) and, thereon, a slab (14) pivotable about a swivel axle (34), said slab (14) forming the back part. At the rear, there is a transverse supporting wall  (44) moulded or attached to the slab (14) and spaced sufficiently apart from the swivel axle (34). Between the supporting wall (44) and the bottom (24) of the foot part (12), there is a transverse piece of hose (16) disposed parallel to the swivel axle (34) and closed at its ends, which is con-nected to the hydraulic-water system of the lifting ap-paratus via a manual control valve. When the piece of hose (16) is filled, the slab (14) is raised to an up-right position even if the upper part of the user's body is applying a load to the slab (143. When hydraulic wa-ter is emptied out in a controlled way, the slab (14) can be adjusted in an infinitely variable manner, pass-ing through various angles of inclination and reaching a position with a flatter angle of inclination, in which an attachment at the rear of the slab (14) comes to rest on the foot part (12).
Patent CA-2113733-A1 (CA)
Title: Extended use planar sensors
Inventor: FOOS JOSEPH S
IPC: G01N27/48
Filed: 1994-01-19
Abstract: A planar, solid-state electrochemical oxygen sensor having a substrate, conductive strips deposited on the substrate, and a dielectric layer insulating portions of the conductive strips except those portions which define a working electrode and at least one second electrode. The working electrode may be defined by an open printed region of the dielectric, or by a needle-punched or laser-burned hole or opening in the dielectric which exposes a small region of one of the conductive strips. A solid electrolyte contacting the electrodes is covered by a semipermeable membrane which may comprise an acrylonitrile butadiene copolymer or an acrylate-based copolymer. A sample chamber is defined by the membrane, a cover member, and a gasket therebetween, and has a volume of from about 1 to about 2 ml. The gasket is formulated from the highly cross-linked polymerization product of epichlorohydrin. All sensor components are selected such that a sensor operable for at least 2 days under normal conditions is produced.
Patent CA-2115605-A1 (CA)
Title: Differential Virtual Ground Beam Blanker
Inventor: GESLEY MARK A
IPC: H01J37/305
Filed: 1994-02-14
Abstract: Spurious electrodynamic effects are reduced or eliminated by the use of a mechanically compact, low capacitance, geometrically symmetric, differentially-driven blanker assembly. This eliminates the need for internal cables or SMA-type launchers and has a solid metal electromechanical contact to system ground.
Patent CA-2118192-A1 (CA)
Title: Positive photoresist composition
Inventor: YOSHIDA YUJI
IPC: H01L21/027
Filed: 1994-10-14
Abstract: ABSTRACT OF THE DISCLOSURE         A positive photoresist composition excellent in properties such as resolution, profile, etc. and good in sensitivity, which comprises a novolac resin obtained through a condensation reaction of a mixed cresol compo-nent consisting of m-cresol and p-cresol, a mixed xylenol component consisting of 3,5-xylenol and xylenols other than 3,5-xylenol and an aldehyde compound, a 1,2-quinonediazide compound and an alkali-soluble compound of which molecular weight is lower than 900, wherein, in said condensation reaction, the ratio a of the mixed xylenol based on the sum of the mixed cresol and the mixed xylenol is not smaller than 10% by mol and not greater than 25% by mol and the ratio .beta. of 3,5-xylenol in the mixed xylenol is not smaller than 20% by mol and not greater than 60% by mol.
Patent CA-2118360-A1 (CA)
Title: Rotor assembly for electromechanical devices
Inventor: WEBB SCOT A
IPC: H02K21/14
Filed: 1994-10-18
Abstract: ABSTRACT OF THE DISCLOSURE    A rotor for an electromechanical device including a hub and an assembly of magnets positioned thereon. The resulting assembly generates magnetic fields in an annular zone around the exterior surface.  A retainer sleeve formed ferro-magnetic material is tightly fitted over the hub and magnet assembly to complete the rotor.
Patent CA-2122580-A1 (CA)
Title: Needle catheter with safety device
Inventor: MASTRONARDI PASQUALE
IPC: A61M25/06
Filed: 1992-10-28
Abstract: A needle catheter particularly for endovasal use, including a needle-guide or metallic mandrel (1) fitted with an end grip (2), and a catheter (4) with end casing (5). Between the end grip (2) of the metallic needle (1) and the casing (5) of the catheter (4), there is an extensible element (9), (9') acting as a cover for the metallic needle (1) after its extraction and with at least one means of blockage (10), (10'), (33) of interception and/or of needle (1) blockage being foreseen in the casing (5) of the catheter, movable from a position where it does not obstruct the lumen (11) of the catheter, to a position where it occludes the lumen.