baber/WOPTO huggingface dataset:
Patent CA-2146562-A1 (CA)
Title: Polypropylene film and process for making same
Inventor: CHU SHAW-CHANG
IPC: C08J7/048
Filed: 1993-10-07
Abstract: A thermoplastic film structure comprising a base layer of a thermoplastic resin which comprises polypropylene and a coat-ing layer of a polyvinylidene fluoride is disclosed. The film is characterized by reduced coefficient of friction, improved anti-blocking characteristics, and enhanced oxygen and water vapor barrier properties. The disclosure also provides a process for making the film in which the polypropylene-containing thermoplastic resin is extruded into a sheet, said sheet oriented in the lon-gitudinal direction to form a monoaxially oriented film, said film coated with the polyvinylidene fluoride and said coated film oriented in the transverse direction.
Patent CA-2146730-A1 (CA)
Title: Catalyst means for the catalytic treatment of exhaust gas, catalytic converter and process for the production of the catalyst means
Inventor: STEENACKERS PIETER D
IPC: B01J19/32
Filed: 1995-04-10
Abstract: The catalyst means for the catalytic treatment of exhaust gas have at least one catalyst support with a packet of alternating first and second sheet metal members. Each first sheet metal member has a main section with a number of protuberances, for example waves. The second sheet metal members have a main section resting against the wave summits of at least one adjacent, first sheet metal member. Coatings comprising an alumina layer and catalytically active material are applied to the main sections which together bound passages for the exhaust gas. Each sheet metal member is connected in at least one retaining section rigidly to a member of retaining means and/or is held by said member a distance away from a retaining section of another sheet metal member. This makes it possible to connect the sheet metal members to one another in a stable and permanent manner without them being damaged by excessive compressive forces and/or movements.
Patent CA-2147016-A1 (CA)
Title: Gas discharge lamp ballast circuit with compact starting circuit
Inventor: NERONE LOUIS R
IPC: H02M7/5383
Filed: 1995-04-13
Abstract: In accordance with the invention, there is provided a ballast circuit for a gas discharge lamp. The circuit comprises means for providing a d.c. bus voltage on a bus conductor with respect to ground. The circuit includes a resonant load circuit incorporating a gas discharge lamp and including first and second resonant impedances whose values determine the operating frequency of the resonant load circuit.  Further included is a converter circuitcoupled to the resonant load circuit so as to impress a bi-directional voltage thereacross and thereby induce a bi-directional current in the resonant load circuit. The converter comprises first and second switches serially connected between the bus conductor and ground, and having a common node coupled to a first end of the resonant load circuit and through which the bi-directionalload current flows. A current-sensing winding senses at least a portion of the current flowing in the resonant load circuit.  A feedback arrangement generates a feedback signal in response to current flowing in the current-sensing winding, and re-generatively controls the first and second switches in response to the feedback signal.  A starting circuit superimposes a starting current pulse through the current-sensing winding, so as to achieve the re-generative control of the first and second switches.
Patent CA-2147948-A1 (CA)
Title: Connector module for local area network
Inventor: REED STEVEN J
IPC: H01R12/71
Filed: 1995-04-26
Abstract: A connector module for use in a local area network having a plurality of workstations in connection with a hub, wherein each workstation is hard wired toa printed circuit board mounted in the module. The module further includes a wiring assembly connected to the board and a cable leading from the hub. The face of the panel includes a plurality of jacks mounted therein, which are also electrically connected to the printed circuit board. Initially, workstations areelectrically connected to the hub through the wiring assembly, which is preferably a twisted pair flat cable. Alternately, the wiring assembly may be disconnected from the board, and an upgraded hub interconnected with the workstations throughthe jacks in the face of the module with minimal re-wiring required.
Patent CA-2152768-A1 (CA)
Title: Alignment guide for use in orthopaedic surgery
Inventor: BURKE DENNIS W
IPC: A61B17/15
Filed: 1995-06-27
Abstract: The alignment guide of this invention includes a cam rotatable about the longitudinal axis of the alignment guide as defined by an intramedullary rod. A base plate is pivotally connected to the intramedullary rod and includes a pair of cam followers positioned on opposite sides of the intramedullary rod. In use, as the cam is rotated relative to the rod, the cam followers ride against the cam causing the plate to pivot or angulate relative to the rod. A plurality of indicia are formed on the cam to indicate to the surgeon the relative angle between the plate and the rod. The base plate includes a quick connect mechanism to permit the surgeon to quickly attach a device such as a cutting guide or pinning guide to the base plate. The cutting guide is fixed relative to the base plate such that the cutting guide will be at the same angular orientation as the plate relative to the intramedullary rod.
Patent CA-2155612-A1 (CA)
Title: Wrapper, carrier and handle assembly and package comprising same and co ntainers
Inventor: MARCO LESLIE S
IPC: B65D71/50
Filed: 1995-08-08
Abstract: In a package for containers of a type having a side wall, a wrapper is formed from a paperboard sheet, folded, and seamed and has a bottom wall, two lateral walls providing expansive surfaces for labelling of the package, and two struts, which extend across the wrapper and divide the package into two endmost regions and an intermediate region.  As formed from sheet-form, resilient, polymeric material, a carrier has band segments defining container-receiving apertures in two longitudinal rows, two endmost ranks, and two intermediate ranks, and a handle is attached to the carrier so as to extend upwardly from a longitudinal midline of the carrier.  Each container is loosely received by one container-receiving aperture so that the band segments defining such aperture grip its side wall.  The containers and the wrapper, carrier, and handle respectively are sized, shaped, and assembled so that the carrier is disposed above the bottom wall and below the struts, so that the containers received by the apertures of the endmost ranks are disposed within the endmost regions, above the bottom wall, so that the containers received by the apertures of the intermediate ranks are disposed within the intermediate region, above the bottom wall, between the lateral walls, and so that the handle extends upwardly between the struts, through the intermediate region of the wrapper.
Patent CA-2159854-A1 (CA)
Inventor: RAYNES JOHN W
IPC: A61B17/00
Filed: 1995-10-04
Abstract: An interface circuit for interfacing a semiconductor transducer  sensor  to  a  patient  vital  signs  monitor  is disclosed.  In one embodiment, the interface circuit includes a power supply circuit that receives an excitation power signal generated by the patient monitor, and derives therefrom unregulated and regulated supply voltages for use by the electrical  components  on  the  interface  circuit.    Also generated by the power supply circuit is an appropriate sensor excitation signal  for the  semiconductor transducer.    In another embodiment,  the interface circuit further includes receiving circuitry for receiving a sensor output signal generated by the transducer sensor.  A scaling circuit then scales  that  signal  into  a  parameter  signal  that  is proportional to the physiological condition detected by the sensor, and that is also proportional to the excitation power signal generated by the patient monitor.  If necessary, the interface circuit further includes isolation circuitry, for electrically isolating the transducer sensor from the patient monitor.
Patent CA-2160142-A1 (CA)
Inventor: TOKOUZBALIDIS STILIANOS
IPC: H01P1/213
Filed: 1994-03-18
Abstract: A waveguide multiplexer/demultiplexer which saves space and weight has a rectangular collecting waveguide (SH) which is short-circuited at one end. At least one pair of coupling openings (K1, K4, K2, K5, K3, K6) are provided in at least one side wall (S1, S2) of the collecting waveguide, which coupling openings are arranged side by side in the transverse direction with respect to the longitudinal axis of the collecting waveguide (SH), each coupling opening being at a distance from the short-circuit plane (XE) of the collecting waveguide (SH), which distance corresponds to an odd-numbered multiple of a quarter of the mean wavelength of the frequencychannel which is to be coupled via the respective coupling opening. The two coupling openings (K1, K4, K2, K5, K3, K6) are arranged offset so far from the center of the sidewall (S1) towards its edges that a waveguide filter can be coupled to the collecting waveguide (SH) via each coupling opening (K1...K6).
Patent CA-2160227-A1 (CA)
Inventor: MURCH BRUCE PRENTISS
IPC: C11D17/00
Filed: 1994-04-05
Abstract: Detergent compositions containing enzymes and calcium ions are found to be more stable when alkyl benzene sulfonate or primary alkyl sulfates surfactants conventionally used therein are replaced by secondary (2,3) alkyl sulfate surfactants. Thus, laundry detergent compositions comprising a secondary (2,3) alkyl sulfate, a source of calcium ions, and one or more protease, cellulase, amylase, lipase or peroxidase detergent enzymes are provided. Bars and granular detergents are also disclosed.
Patent CA-2161332-A1 (CA)
Title: Use of oral diazoxide for the treatment of disorders in glucose metabolism
Inventor: PAULSEN ELSA P
IPC: A61K31/54
Filed: 1993-04-26
Abstract: A method is disclosed for normalizing blood glucose and insulin levels as measured by an oral glucose tolerance test in an individual exhibiting normal fasting blood glucose and insulin levels and exhibiting in an oral glucose tolerance test elevated glucose levels and at least one insulin level abnormality selected from the group consisting of a delayed insulin peak. an exaggerated insulin peak and a secondary elevated insulin peak. The method comprising administering diazoxide to the individual before ingestion of a food source in an amount effective to normalize the blood glucose and insulin levels. Diazoxide is administered in an amount from about 0.4 to about 0.8 mg/kg body weight before each meal.
Patent CA-2163639-A1 (CA)
Title: Method for supplying material for pressing to a filter press
Inventor: HARTMANN EDUARD
IPC: B30B9/22
Filed: 1995-03-13
Abstract: In supplying material for pressing (37) into the press chamber of a filter press for separating solids and liquids, the filling operation (F) is done interruptedly in a first step (P1) at a fill opening (44). A press element (36) executes a plurality of pressings up to a constant stroke position (HS). Not until a second method step (P2) is the filling operation (F) interrupted, as soon as the pressing pressure exceeds a limit value (PS), whereupon the pressings are continued with shortened strokes.      The method offers automatic adaptation of the prefilling time to the pressability of the materials.      It thus becomes possible to prefill highly differently pressable material automatically and without specifying a command value in such a way that an optimal performance is attained in terms of the yield and the juice extraction output of a filter press.
Patent CA-2164603-A1 (CA)
Inventor: TEPPER BYRON S
IPC: F24F8/108
Filed: 1994-01-10
Abstract: A device for filtering air including a filter housing (104) having an air inlet (106) for directing flow of air drawn into the housing (104) from atmosphere and an air outlet (108) for directing flow of air exhausted from the housing (104) to the atmosphere, the air drawn into the housing (104) carrying air contaminants therewith. A plurality of cylindrical filter stacks (10) having substantially parallel longitudinal axes are disposed in the housing (104). The filter stacks (10) have outer cylindrical filter walls (22) and inner passages (29) extending therethrough along the longitudinal axes. The filter stacks (10) are capable of filtering the air drawn into the housing (104) by trapping the air contaminants in the filter walls (22) when air is drawn through the filter walls (22) into the inner passages (29). Finally, a blower (126) is disposed within the filter housing (104) for 1) drawing the air from atmosphere into the filter housing (104) through the air inlet (106), 2) drawing the air through the filter walls (22) into the inner passages (29) to trap the air contaminants in the filter walls (22) to thereby produce filtered air within the inner passages (29), and 3) exhausting the filtered air through the air outlet (108) into the atmosphere.
Patent CA-2166005-A1 (CA)
Title: Haemostatic device
Inventor: BOSMA GJALT
IPC: A61M25/00
Filed: 1995-12-22
Abstract: The invention relates to a haemostatic device comprising a housing containing a continuous channel, and connected to the channel a chamber inside of which an elastic compressible sealing element has been received. Inside the housing an axially displaceable pressure element, working on the sealing element, has been arranged. The sealing element comprises, in line with the channel, a depression of which the wall diverges in opposite axial directions from a central section.
Patent CA-2167687-A1 (CA)
Title: Perimeter seal for air heater
Inventor: HAGAR DONALD K
IPC: F28D19/04
Filed: 1994-07-18
Abstract: An air heater perimeter seal provides independent positive control of the leak path induced by relative radial and axial movements at the rotor perimeter. A seal member (102) with a relatively wide seal face (104) disposed in a plane (107) perpendicular to the air heater axis (51) allows the seal member (102) to stay within the radial width of the corresponding seat during expansion and contraction of the rotor (48') as it moves from the air side to the discharge gas side and back. In addition, the installation adjustability and the tolerance for radial error of the seal of the present invention makes it possible for out-of-round rotors and warped housings to be properly sealed. An axial slip joint (120) between the seal member (102) and the rotor (48') allows the seal face (104) to remain adjacent to the face of the sector plate and to the seat face regardless of rotor droop. The axial slip joint (120) also acts as a labyrinth seal to control leakage of gasses between the housing (46') and rotor (48').
Patent CA-2168998-A1 (CA)
Title: Drain valve assembly
Inventor: LABONTE ROGER EDMOND
IPC: F01M11/04
Filed: 1996-02-07
Abstract: A drain valve assembly for draining fluid from a container, for example an engine crankcase, is constructed with a first threaded bolt portion having external threads for engaging in a threaded drain outlet of the container and internal threads in an axial passage passing through the first threaded bolt portion,  a second threaded bolt portion having external and internal threads whereby,  in use, the external threads engage in the internal threads of the first threaded bolt portion to seal therewith and whereby passages extend through the first and second bolt portions to permit flow of fluid therethrough.  A sealing member  forms  part  of  the  second  threaded  bolt  portion whereby  on  full  insertion  of  the  second  threaded  bolt portion in a first position within the first threaded bolt portion, the sealing member engages an adjacent surface to prevent the escape of fluid from the  container  and,  on retraction to a second position, the flow of fluid through the first and second threaded bolt portions is permitted. The   second   threaded   bolt   portion   has   a   passage therethrough  which  is  of  a  first  cross-sectional  area opening into a passage of a second larger cross-sectional area terminating at the sealing member and having a side wall with at least one aperture therethrough for the flow of fluid between the passage in the first threaded bolt portion  and  the  passage  in  the  second  threaded  bolt portion.
Patent CA-2169641-A1 (CA)
Title: Telephone handset
Inventor: ENTING ALBERT
IPC: H04M1/03
Filed: 1994-08-18
Abstract: In a telephone handset having an elongate housing which defines a cavity, wherein a microphone and a loudspeaker are arranged, the microphone is arranged air-tightly in a chamber of the housing by means of a flexible gasket. A portion of the gasket extends at least partially over the rear part of the microphone. In order to hold the microphone and the gasket under weak pressure and vibration-free in the chamber means engaging on this portion are provided, such as a separate plate. A printed circuit board arranged in the cavity can also be used for this purpose. The loudspeaker can be mounted in corresponding manner.
Patent CA-2170603-A1 (CA)
Title: Preservation of wood with phenol formaldehyde resorcinol resins
Inventor: LEWIS JEAN
IPC: C08L61/16
Filed: 1994-08-19
Abstract: Wood and other cellulose-based products are preserved with a water-based treating solution containing a phenolic resin prepolymer such as phenol formaldehyde resin prepolymer, a resorcinol formaldehyde resin prepolymer and water.  The treatment is carried out by exposing the wood or other cellulose-based product, while submerged in the treating solution, to one or more cycles of reduced pressure (i.e. vacuum) and elevated pressure.
Patent CA-2171568-A1 (CA)
Title: Method and system for type identification for multiple object interfaces in a distributed object environment
Inventor: KESSLER PETER B
IPC: G06F9/06
Filed: 1996-03-12
Abstract: A system and method provides dynamic and static type support for multiple definitions of individual types in a distributed object environment. Fully scoped object names incorporating prefixes are used to distinguish objects. The fully scoped names are used for both dynamic type determination through an interface repository and for statically compiled types in client and server stub routines. In the interface repository, a prefix naming context is provided for each root interface definition language context, allowing multiple definitions for objects with the same interface definition language object name, where each such definition resides in a separate prefix naming context. In one embodiment, the prefix naming contexts are defined by prefix interface definition objects. In another embodiment, the fullyscoped object names are embedded by an interface definition language compiler instub and skeleton code routines.
Patent CA-2172252-A1 (CA)
Title: Container for beverages, preserved food products and the like
Inventor: PUENTE PUBILL GUSTAVO
IPC: B65D17/00
Filed: 1995-07-19
Abstract: Abstract Container for beverages, preserved food products and the like The container comprises at its mouth a device combined with the internal side of the lid (T) and the opening (3) of the latter, in order to form the emergence, with respect to the mouth of the container (1), of a tubular body (C) which extends as a continuous sheet remaining, at the edge, interleaved between the lid and the body of the container, the product contained in the container (1) coming out directly through the tubular body without contacting the external part of the container.
Patent CA-2172827-A1 (CA)
Title: Improved cement admixture product having improved rheological properties and process of forming same
Inventor: ARFAEI AHMAD
IPC: C08G73/06
Filed: 1994-09-13
Abstract: The present invention is directed to an imidized polycarboxylic acid polymer useful as a cement admixture, to improved cement compositions containing said polymer and to a process of forming the same.
Patent CA-2173141-A1 (CA)
Title: Full field mask illumination enhancement methods and apparatus
Inventor: PARTLO WILLIAM N
IPC: B23K26/06
Filed: 1994-09-30
Abstract: Full field mask illumination enhancement methods and apparatus for high power laser systems. Laser (20) emission is focused to a small area to pass through a small hole (24) in an end plate (26) in a highly reflective light pipe (28). The exit end of the light pipe (28) is imaged onto a telecentric lens (32) adjacent a mask or reticle (34), which mask or reticle (34) is highly reflective except where defining areas for ablation. Laser emission passing through the reticle (34) is imaged onto a workpiece (40), while light reflected by the reticle (34) substantially retraces either its own ray path or that of another ray impinging on the same area of the reticle (34). Light reflected back into the light pipe (28) generally misses the small hole (24) therein, most of it being repeated re-relected by the light pipe (28) and end plate (26) back to the reticle (34) to reuse the same by repeatedly bathing the reticle (34) in the laser emission.
Patent CA-2174635-A1 (CA)
Title: Multiple beam laser sintering
Inventor: BENDA JOHN A
IPC: B29C67/00
Filed: 1994-10-20
Abstract: A multiple beam laser sintering device includes a sintering beam (64) having a focal point at a powder bed (68) and at least one defocussed laser beam (116) incident on a region near the focal point of the focussed beam (64). The sintering beam (64) raises the temperature of the powder (84) to the sintering temperature.  The defocussed beam (116) raises the temperature of the material surrounding the sintering beam (64) to a level below the sintering temperature, thereby reducing the temperature gradient between the sintering location and the surrounding material. Thermal radiation may be measured from one or both beams and used to control the power of one or both beams and the power of one or both beams may be controlled to maintain the temperature at a desired level.  Alternatively, a plurality of defocussed beams may be used to provide either a plurality of thermal gradient steps, or to control the temperature of each region around the sintering point independently.
Patent CA-2177500-A1 (CA)
Inventor: LAPOINTE STEPHEN
IPC: A63H33/00
Filed: 1996-05-28
Abstract: The present invention embodies a portable collapsible children's playhouse comprising side walls, end walls, and roof panels. The walls, end walls and roof panels are of substantially flat configuration, and adapted to coact with each other to form a self-standing walk-in structure. In the storage position, the roof panels are adapted to fold into a substantially flat carry-on suitcase, and this suitcase is adapted for storage of the side walls and end walls. When assembled, the playhouse forms a gable-roof type structure. The upper portions of the end walls form gables and the roof panels have a gable-roof configuration; the gable roof panels are adapted to coact with the gables of the end walls. The side walls, end walls and roof panels are interlocked between each other by engagement means which are male tab portions adapted to interlock with corresponding female receiving slots.
Patent CA-2177811-A1 (CA)
Inventor: BIRCH CHRISTOPHER H
IPC: H04N21/236
Filed: 1994-12-05
Abstract: A multiplex frame format for transmitting digital data in a data transmission system comprises a PACKETS portion comprising a highly error-protected region, a region having only Reed Solomon encoding as an error protection measure, and a portion including low speed data. The frame format also comprises portions for transmitting medium (AUDIO) and high speed (VIDEO) data streams following the PACKETS portion. Prior to transmission, the composed frame comprising the PACKETS, AUDIO and VIDEO portions is interleaved and the BLOCK SYNC and FRAME SYNC are added (110). A multiplex structure control packet word of the PACKETS portion immediately follows FRAME SYNC. Thus, the FRAME SYNC word defines where interleaving begins. A demultiplexer (156) in concert with a microcontroller (158) of a decoder (154, 155) decodes the multiplex structure control word and related PACKETS and outputs digital data streams to related output peripheral processors (157).