baber/WOPTO huggingface dataset:
Patent CA-2025946-C (CA)
Title: Temperature controlling means
Inventor: SUZUKI OSAMU
IPC: G01N11/00
Filed: 1990-09-21
Granted: 1994-04-12
Abstract: ABSTRACT      A device for controlling, with a microprocessor, the temperature of a fluid sample in a liquid bath over a wide temperature range.  The device is operative to measure the temperatures of the sample and the bath; to determine a desired temperature of the bath according to a first function of the first difference between a desired sample temperature and the measured sample temperature when the absolute value of the first difference is grater than a predetermined value and according to a second function of the first difference when the absolute value is not greater than the predetermined value; and subsequently to limit the desired bath temperature thus determined to the desired sample temperature plus a given value when the second difference between the desired bath temperature and the desired sample temperature is grater than the given value and to the desired sample temperature minus the given value when the second difference is less than the negative of the given value.  The device heats or cools the bath as a function of the third difference between the desired bath temperature determined and limited as described above and the measured bath temperature to effect a difference of zero.
Patent CA-2033190-C (CA)
Title: N-phenylalkyl substituted alpha-amino carboxamide derivatives and process for their preparation
Inventor: DOSTERT PHILIPPE
IPC: A61K31/4406
Filed: 1990-05-25
Granted: 2003-04-08
Abstract: N-phenylalkyl substituted .alpha.-amino carboxamide derivatives of formula (I)   wherein R is C1-C8 alkyl, C3-C8 cycloalkyl, furyl, thienyl, pyridyl or unsubstituted or substituted phenyl:      A is a -(CH2)m- or -(CH2)p-X-(CH2)q-group wherein X is -O-, -S- or -NR4-; R1, R2, R3, R3', R4, n, m, p and q are as herein defined: and each of R5 and R6 is independently hydrogen or C1-C6 alkyl, and the pharmaceutically acceptable salts thereof, are active on the central nervous system and can be used as anti-epileptic, anti-Parkinson, neuroprotective, antidepressant, antispastic and/or hypnotic agents in mammals.
Patent CA-2043544-C (CA)
Inventor: SHAMOS MORRIS H
IPC: G06K17/00
Filed: 1991-05-30
Granted: 1999-08-24
Abstract: The invention relates to a patient and healthcare provider identification system which includes a database of patient and healthcare provider information including the identity of each patient and provider and some identification criteria (such as fingerprint data); a print scanner for reading the print information from a patient or provider; a control system for matching the print data read by the scanner with the print data stored in memory; and a printer for printing labels or generating stamps or other visually perceptible medium for positively identifying the patient or provider and creating a record of the identification.
Patent CA-2043747-C (CA)
Title: Method of manufacturing fan blades
Inventor: MONROE ROBERT C
IPC: B29C43/12
Filed: 1991-06-03
Granted: 1995-06-27
Abstract: A method and apparatus of molding a hollow fan blade is disclosed wherein a fiberglass preform is used to support the upper layers of fiberglass cloth within a mold.   As resin is injected  into  the  mold,  both  the  fiberglass  cloth  and  the fiberglass preform become impregnated thereby bonding the two together into a single unit during the molding operation during which heat and pressure is applied.
Patent CA-2048564-C (CA)
Title: Optically variable interference device with peak suppression and method
Inventor: COOMBS PAUL GRAHAM
IPC: G02B5/26
Filed: 1991-08-07
Granted: 2001-10-23
Abstract: Optical variable interference device with peak suppression having a reflector with first and second surfaces. A thin film multilayer interference stack is disposed on the first surface. The interference stack is comprised of at least two periods with each period being comprised of a metal absorber layer and a dielectric spacer layer.
Patent CA-2050694-C (CA)
Title: Method and appartus for controlling air-fuel ratio of gas engine
Inventor: YAKABE HISATAKA
IPC: F02M21/02
Filed: 1991-09-05
Granted: 1997-10-21
Abstract: A method and apparatus for controlling and improving the air-fuel ratio of a gas engine by controlling the air-fuel ratio on an exhaust purifying apparatus such as a three way catalyst in use with the gas engine.  The method involves the steps of modulating a vibrational drive current for driving a bypass value with waveforms such as rectangular wave, sinusoidal wave, triangular wave, etc., with predetermined periods and amplitudes, in response to signals transmitted from a main oxygen sensor and a pressure sensor.  The main oxygen sensor being installed on an up-stream side relative to the three way catalyst interposed on an exhaust line of the gas engine, and the pressure sensor being installed on an intake line in communication with a mixer; detecting distortion of responded waveforms of signals transmitted from a sub oxygen sensor, which sensor is installed on a down-stream side of the three way catalyst; and controlling the drive current so as to remove the detected distortions, in order to help optimize the air-fuel ratio of the gas engine.          The invention thus helps in optimizing control of the air-fuel ratio and helps in the purification efficiency of the gas engine exhaust.
Patent CA-2056253-C (CA)
Title: Anchoring device
Inventor: SCHLAPFER JOHANNES FRIDOLIN
IPC: A61B17/58
Filed: 1991-11-26
Granted: 1996-06-18
Abstract: An anchoring device (1) consists of a pedicle screw (3) with a U-shaped holder (5).  By means of a support (8, 16) having a rotational axis (9) positioned in the holder (5), a support rod (2) is positioned in such manner that it can pivot.  A positioning element (12) is housed positively on the rod (2).          Said element (12) has a surface (13) that has a radius R to rotational axis (9) when the positioning element (12) is slid necessarily to the pre-determined correct position.  A nut (14) is screwed on threaded segments on the jaws (6,6') of the U-shaped holder (5), and by means of its bottom edge initially necessarily brings the positioning element (12) into the correct position on the axis (1); when turned again, it fixes the rod (2) and the pedicle screw (3) so that no undesired stresses occur.          The device (1) is used in osteosynthesis, particularly for stabilizing vertebral column segments.
Patent CA-2056754-C (CA)
Title: A method of making a fiber preform of varying thickness for manufacturing a part made of composite material of the type having a ceramic or a carbon matrix
Inventor: OLRY PIERRE
IPC: B29C70/24
Filed: 1991-12-02
Granted: 1999-09-21
Abstract: In a portion of the preform to be made in which the preform is to be of reduced thickness by having a recess formed therein, a mask is interposed between pairs of adjacent layers, the mask being made of a thin film of material through which the needles can pass during needling while opposing the passage of significant quantities of fiber taken by the needles, and after it has been needled, each layer is cut out around a line corresponding to the outline of the recess in the preform at the level where the layer is situated in the preform.  A mask situated between two cutout layers occupies an area that is not less than the area between the cutout lines of the two layers, such that the portions of the layers that are delimited by the cutout lines are not securely connected to the remainder of the preform by the needling, thereby enabling the recess to be formed after all the layers have been needled by withdrawing the cutout portions of the layers and by peeling off the masks.
Patent CA-2057311-C (CA)
Title: Transmission system for the polarisation-insensitive transmission of signals
Inventor: VAN DEVENTER MATTIJS O
IPC: H04J14/06
Filed: 1991-12-09
Granted: 1994-12-06
Abstract: The invention relates to a transmission system for the polarisation-insensitive transmission of signals over a signal path between a transmitter and a receiver, provided with high-order retarder. The retarder is a combination of a polarisation-splitting coupling and a loop-type delaying transmission route.  The retarder may be sited at the receiver end, with a suitably chosen angle between one of the principle axes of the retarder and the polarisation of a  local  oscillator  incorporated  in  the  receiver. Advantages are reduction in size and number of components in the retarder, reduction in the number of retarders in such a transmission system and an increase of the capacity for integration.
Patent CA-2060372-C (CA)
Title: Strand displacement amplification
Inventor: WALKER GEORGE TERRANCE
IPC: C12Q1/68
Filed: 1992-01-30
Granted: 1999-06-01
Abstract: This invention relates a nucleic acid target amplification and detection method which operates at a single temperature and makes use of a polymerase in conjunction with an endonuclease that will nick the polymerized strand such that the polymerase will displace the strand without digestion while generating a newly polymerized strand.
Patent CA-2060406-C (CA)
Inventor: HAMILTON BRUCE EDWARD
IPC: G09B9/30
Filed: 1992-01-30
Granted: 1998-12-01
Abstract: A virtual image display system provides video displays based upon virtual images of the external world having synchronized structural outlines superimposed on the video displays to a pilot operating an aircraft such as a helicopter in non-visual flight conditions.  The virtual image display system includes a virtual imaging subsystem for generating virtual images of the external world, a video display subsystem for generating video images based upon the virtual images and for displaying the video images for the pilot's viewing, a sensing means for providing signals corresponding to the spatial location and perspective of the video display subsystem, a map comprising structural outlines corresponding to structural members forming the canopy structure of the helicopter, and a computer subsystem providing electronic interfacing between the elements of the virtual image display system, for synchronizing the orientation of the virtual imaging subsystem with the video display subsystem, and for processing the virtual image signals to provide signals to the video display subsystem to generate video displays.  The computer utilizes the helmet position signals to define the relative position and orientation of the video display subsystem in the cockpit, and utilizes such definition to reconstruct structural outlines from the map that are synchronized to the perspective of the video images.  The synchronized structural images are superimposed upon the video display.
Patent CA-2060667-C (CA)
Title: Adaptive sparse echo canceller using a sub-rate filter for active tap selection
Inventor: YATROU PAUL MARC
IPC: H04B3/23
Filed: 1992-02-05
Granted: 1998-12-08
Abstract: With the presently described echo canceller, a sparse adaptive transversal filter is used to model and cancel only the active regions of the echo impulse response.  Since the tap coefficients, in the dormant regions, are set to zero and have no random fluctuation this approach reduces computation time and excess mean-square error in the tap coefficients.  Also, the present design provides for increased speed of convergence of the sparse canceller as compared to the full-tap canceller, since convergence is proportional to the number of active taps in the LMS algorithm.
Patent CA-2065651-C (CA)
Title: Television system having an ultrablack video signal blanking level for an on-screen character display
Inventor: KIM YONG H
IPC: H04N5/445
Filed: 1992-04-09
Granted: 1994-08-23
Abstract: Abstract of the Disclosure An arrangement for displaying characters and/or graphics on the screen of a television system including a brightness control section for controlling the black level of video images includes a character blanking section for blanking behind the video image so as to make the characters and/or graphics more visible. The character blanking section is coupled to the brightness control section for generating an "ultra-black" character blanking level which tracks, but is slightly greater (in the black direction) than the black level for the video image.
Patent CA-2084611-C (CA)
Title: Non-slip hanger and method of manufacture thereof
Inventor: GARRISON JUDD F
IPC: A47G25/30
Filed: 1992-12-04
Granted: 1997-03-18
Abstract: An improved garment hanger is provided with a coating of resilient friction material on the upper surfaces of the garment support members to provide non-slip surfaces for garments such as coats, shirts, blouses and dresses and help prevent the garments from falling off the garment hanger and onto the floor.          The application of resilient friction material applies equally to  pant  bars.    The  improved  resilient  friction  material comprising a block copolymer having discrete block segments of styrene monomer units and rubber monomer units.
Patent CA-2087060-C (CA)
Inventor: CHIU YUE TONG
IPC: H04N5/225
Filed: 1993-01-11
Granted: 1995-11-28
Abstract: A camera system providing color night vision for use in reconnaissance, or the like.  The system includes a first lens,  a mirror subassembly for splitting the lens image into three images,  a filter subassembly for rspectively filtering the three images through a red filter and a green filter and a blue  filter  first  and second and third intensifiers having respective first and second and third camera units which view the three images and send three image signals in series to a display monitor where the color image is viewed.
Patent CA-2088487-C (CA)
Title: Apparatus for cooling extrusion press profile sections
Inventor: KRAMER CARL
IPC: C21D1/667
Filed: 1991-07-30
Granted: 2001-09-18
Abstract: An apparatus for cooling extruded profile sections comprises nozzles which are arranged above and below an exit path of the extruded profile section and which are formed as air nozzles arranged transversely of the pressing and exit direction of the extruded profile section and having slit-shaped nozzle openings. The air nozzles arranged beneath the exit path have a smaller nozzle slit width than the air nozzles arranged above the exit path and blowing onto the extruded profile section from above; the distance of the lower air nozzles from the extruded profile section is less than the distance of the upper air nozzles from the extruded profile section; and the air nozzles arranged beneath the extruded profile section are offset with respect to the air nozzles arranged above the extruded profile section in each case by half the pitch, measured in the pressing and transport direction of the extruded profile section.
Patent CA-2089180-C (CA)
Inventor: PAPA ALYCE JOHNSON
IPC: A61F13/00
Filed: 1991-09-09
Granted: 1998-09-15
Abstract: Article absorbant relativement mince (10), comme une serviette hygiénique, et dispositif de fixation adhésive (12) de la serviette au sous-vêtement.  Cette serviette hygiénique a la capacité d'absorber un écoulement menstruel moyen ou élevé.  Elle possède des bords longitudinaux (24) qui sont arqués vers l'intérieur l'un par rapport à l'autre dans une région centrale, et qui sont convexes vers l'extérieur dans les régions d'extrémité.  Ces régions d'extrémité (26) de la serviette sont également convexes vers l'extérieur.  Selon divers modèles, le dispositif de fixation adhésive est constitué de deux bandes adhésives espacées (12) qui sont orientées longitudinalement et disposées sur des côtés opposés de la ligne médiane longitudinale de la serviette hygiénique.  La distance entre les bords intérieurs des bandes est d'environ 8 millimètres, et d'environ 30 millimètres dans la région centrale.   Selon un premier et un second modèles préférés, la distance entre les bords extérieurs des bandes est supérieure à environ 47 millimètres, et est d'environ 60 millimètres dans la région centrale de la serviette.  Selon un troisième modèle, les bandes sont arquées vers l'intérieur l'une par rapport à l'autre, et la distance entre les bords extérieurs des bandes est supérieure à environ 35 millimètres dans la région centrale, et d'environ 47 et 90 millimètres dans les régions d'extrémité.  Selon un quatrième modèle, les bandes peuvent être arquées vers l'intérieur l'une par rapport à l'autre dans la région centrale, et arquées vers l'extérieur l'une par rapport à l'autre dans au moins une des régions d'extrémité de la serviette hygiénique.
Patent CA-2090414-C (CA)
Title: Liquid delivery apparatus
Inventor: MITCHELL DAVID
IPC: B05B9/06
Filed: 1991-09-13
Granted: 2002-04-16
Abstract: (57) Abstract There is disclosed a liquid delivery apparatus (I) compris-ing (i) a liquid reservoir (6) into which a liquid may be introduced via an inlet (11) to pressurise said liquid in the reservoir (6); (ii) an outlet via which said liquid may be discharged from the reser-voir (6) under the pressure of the liquid in the vessel (6); (iii) a valve (18) between the reservoir (6) and the outlet (14) to control passage of liquid from the reservoir (6) to the outlet (14), said valve (18) having (a) an opening (20), (b) a closure member (22) adapted to close the opening (20), and (c) a biasing means (32), the arrangement of the components of the valve (18) being such that the valve (18) is normally held closed under the force of the biasing means (32) and the pressure of the liquid in the reservoir (6); (iv) a valve control mechanism (10) for controlling the opera-tion of the valve (18) in response to the pressure of the liquid in the reservoir (6); and (v) a means (8) for transmitting the pressure in the reservoir (6) to the valve control mechanism (10); wherein the valve control mechanism (10) comprises a movable element (28) which is capable of being acted on by the pressure of the li-quid in the reservoir (6) and transmitting a resultant force to the closure member (22) of the valve (18) in a direction to open the valve (18), and wherein the respective effective surface areas of the movable element (28) and the closure member (22) and the force of the biasing means (32) are chosen such that the closure member (22) is opened when the pressure of the liquid in the res-ervoir (6) reaches a predetermined level. This apparatus (1) is use-ful for distributing waste water over agricultural land. There are also described two new forms of outlet for use with the liquid delivery apparatus.
Patent CA-2104212-C (CA)
Inventor: MACKICHAN JOHN CAMERON
IPC: H04B10/07
Filed: 1992-03-23
Granted: 1998-07-07
Abstract: This invention relates to photonic amplifiers, e.g. fibre amplifiers, which are specially suitable for use in long distance telecommunications optical linkages. The amplifier includes an optical transmitt er, which is adapted to provide to the output of the amplifier a default signal which is digitally modulated and the digital modulati on includes the identity of the amplifier. The default fault condition is constituted when the traffic signals fall below a preset leve l, e.g. in the case of a cable break when the signal falls to zero. In a preferred embodiment, the traffic signals are modulated with a control tone which is used to control the AGC's of the telecommunications link. In this system, the default condition is constit uted when the level of control tone falls below a predetermined level, and the default signals also contain control tone, so that subsequent amplifiers are held out of default state.
Patent CA-2105269-C (CA)
Inventor: SHOHAM YAIR
IPC: G10L25/93
Filed: 1993-08-31
Granted: 1998-08-25
Abstract: A method for high quality speech coding is disclosed which offers advantages over conventional CELP (code-excited linear predictive) algorithms for low rate coding. The method, Time-Frequency Interpolation (TFI), provides a perceptually advantageous for voiced speech processing. The general formulation of the TFI technique is described.
Patent CA-2107664-C (CA)
Title: Etch-resistant coating
Inventor: OHRBOM WALTER H
IPC: C09D133/04
Filed: 1992-04-16
Granted: 2000-06-13
Abstract: A coating composition comprises a polymer which is comprised of the residue of a sterically-hindered monomer. The presence of this sterically-hindered monomer results in the production of a coating which is resistant to environmental etching.
Patent CA-2112026-C (CA)
Title: Product sleeve having premium card formed integrally therewith
Inventor: DAGOSTINE LESLIE J
IPC: B65D71/00
Filed: 1993-12-21
Granted: 2004-12-28
Abstract: A product sleeve blank comprises a number of panels hingedly connected together. The outside panels have inter-engagement means associated therewith. One of the outside panels has a premium card detachably joined to an edge thereof along a perforation line. The sleeve blank is sized so that when this outside panel is folded about its hinge line with the adjacent panel, the premium card overlies a further panel between the hinge lines of that panel. The premium card may be affixed to this further panel and then the premium card detached from the outside panel with which it is associated so that the panels may be hinged and the inter-engagement means engaged to form a sleeve. The premium card may be readily removed by a consumer by being peeled from the panel to which it is affixed.
Patent CA-2113399-C (CA)
Title: Remote fuel station
Inventor: VAILLANCOURT GREG
IPC: A62C3/06
Filed: 1994-01-13
Granted: 2002-03-05
Abstract: A remote fuel station designed for fuelling of equipment in potentially hazardous situations such as in mines comprises an enclosed container that is adapted to receive a fuel tank or bladder and which includes a containment volume capable of holding the entire contents of the tank or bladder in the event of rupture of the latter. The station also includes a door arrangement adapted to effectively seal the interior to cut off air supply if a fire should develop, and also includes a sprinkler system or a chemical fire suppressant arrangement.
Patent CA-2115264-C (CA)
Title: Instruments de marquage
Inventor: NICOLL ROY
IPC: B43K7/10
Filed: 1992-09-15
Granted: 1998-09-15
Abstract: Instrument d'écriture, par exemple stylo à pointe fibre, stylo à bille ou surligneur, dont le dispositif d'alimentation transportant le liquide marqueur du réservoir (17) à la pointe est complété par une membrane en élastomère (6) qui ferme en partie le réservoir et forme au contact avec le dispositif d'alimentation une valve. Lorsque la pointe est appuyée sur une surface, le dispositif d'alimentation est repoussé et exerce sur la membrane une pression qui est transmise au liquide dans le réservoir, de sorte que la valve s'ouvre et le liquide est envoyé à la pointe.
Patent CA-2119229-C (CA)
Title: Automatic pay-per-view reception in a satellite receiver
Inventor: POND RUSSELL LEE
IPC: H04N7/16
Filed: 1994-03-16
Granted: 2000-03-14
Abstract: An automated pay-per-view activation method is disclosed for use in integrated television receive-only satellite receiver/descramblers. The automated procedure allows for automatic activation of the pay-per-view program event reception from all pay-per-view service providers. Taken in conjunction with a preprogrammed timer function, the present invention provides for the preprogrammed reception of pay-per-view programs in the absence of the operator.