baber/WOPTO huggingface dataset:
Patent CA-2033400-C (CA)
Title: Apparatus and method to reduce automotive emissions using filter catalyst interactive with uego
Inventor: ANDERSON MICHAEL J
IPC: F02D41/14
Filed: 1990-12-28
Granted: 2000-12-12
Abstract: Apparatus system to control unwanted automotive emissions by use of a closed loop feedback system between an engine and catalyst, the system providing a feedback response time of less than 60 milliseconds and a resolution control for maintaining A/F ratio within ~ .01-.02% of stoichiometry irrespective of random combustion effects, variations in fuel injection, variations in intake air, variations in cylinder-to-cylinder conditions, and variations in exhaust turbulence. The system has: a low mass, three-way filter catalyst stationed close to the source of the stream and effective to filter out random combustion effects within the stream; a high mass, three-way main catalyst stationed downstream of the filter catalyst and effective to convert the remainder of noxious emissions in the stream to desired levels; (c) a continuous universal exhaust gas sensor stationed in the stream between said catalysts effective to rapidly and accurately indicate the level of oxygen within the stream leaving the filter catalyst; and (d) proportional, integral control means for adjusting in a closed loop the A/F of the mixture in response to a deviation of the sensed oxygen level from stoichiometry. The exhaust gas oxygen sensor is interactively related to the filter catalyst in time response to eliminate chemical noise, slow sensor response, and compensate for aging.
Patent CA-2039337-C (CA)
Title: Thermostat interface for a refrigeration system controller
Inventor: BALDWIN JOE M
IPC: F25B49/02
Filed: 1991-03-28
Granted: 1993-09-07
Abstract: Title THERMOSTAT INTERFACE FOR A REFRIGERATION SYSTEM CONTROLLER                           Inventors JOE M. BALDWIN MERLE A. RENAUD ALAN G. METCALFE             Abstract An interface for use between a thermostat and a controller for an HVAC system comprising:  means for receiving a plurality of parallel commands from a thermostat where each command represents one of two possible states; means for converting each of the plurality of parallel commands into a plurality of predetermined values; means for combining the predetermined values in a predetermined manner; and means for transmitting the combined predetermined values to the controller.
Patent CA-2041167-C (CA)
Inventor: WHITE ALEC W
IPC: B09B1/00
Filed: 1991-04-24
Granted: 1998-08-11
Abstract: A multi-layer article of manufacture includes an intermediate layer of a water-swellable colloidal clay, such as bentonite, sandwiched between two layers of flexible sheet or fabric material wherein the two flexible layers of sheet or fabric material are structurally interconnected through the intermediate clay layer, such as by needle punching, after lubrication of the clay or sheet material with a liquid, such as water, to interconnect fibers of one fabric layer to the other fabric layer at spaced locations over essentially the entire inner surface areas of both sheet or fabric material layers.
Patent CA-2042685-C (CA)
Title: Silicone release composition
Inventor: REED W MICHAEL
IPC: B05D5/08
Filed: 1991-05-15
Granted: 1998-08-04
Abstract: A silicone release coating emulsion includes a reactive crosslinkable silicone, a catalyst and a high molecular weight, water soluble or water dispersible polymeric thickening agent such as polyethylene oxide.  The polymeric thickening agent has a weight average molecular weight greater than about 100,000.  The silicone release emulsion is applied as a coating to a substrate, and particularly paper, and cured to form a release coating for pressure sensitive adhesives.  The silicone emulsion exhibits improved holdout of the silicone from the substrate.
Patent CA-2051875-C (CA)
Title: Fiber optic gyro with reduced zero-point output drift
Inventor: OHNO ARITAKA
IPC: G01C19/72
Filed: 1991-09-19
Granted: 1997-01-07
Abstract: Light from a light source is linearly polarized by a polarizer and is then splitted by an optical splitter/couler into two, which are simultanesouly coupled, as right-handed light and left-handed light, into both ends of an optical fiber coil.  The right-handed light and left-handed light emitted from the both ends of the optical fiber coil are coupled by the optical splitter/couler into interference light, which is extracted after passing through the polarizer and is converted into an electric signal corresponding to its intensity.  The phase difference between the right-handed light and the left-handed light, corresponding to an angular rate applied to the optical fiber coil, is detected from the electric signal.  In the present invention, a depolarizer is inserted in series at an arbitrary position in a loop from one end of the optical splitter/couler to the other end thereof via the optical fiber coil.  The difference between the difference in propagation time between perpendicularly intersecting polarized light components in the depolarizer and the difference in propagation time between perpendicularly intersecting polarized light components in the optical fiber coil is selected larger that the coherence time of light which passes through the loop.
Patent CA-2057926-C (CA)
Inventor: LOWE CHRISTOPHER ROBIN
IPC: B01J20/26
Filed: 1990-06-08
Granted: 1998-04-28
Abstract: A separation medium for use in protein separation comprising a water-insoluble m atrix carrying a plurality of polyamine groupings, said polyamine groupings having at least three basic nitrogen atoms. said basic nitrogen atoms being separated from each other by a chain of at least two intervening carbon atoms, there being a to tal of 5 such intervening carbon atoms when there is a total of three nitrogen atoms in each polyamine group, which may be used fo r at least partially purifying factor VIII.
Patent CA-2059960-C (CA)
Title: Injection molding probe with coaxial thermocouple tube and heating ele ment
Inventor: TENG ALEX C
IPC: B29C45/26
Filed: 1992-01-20
Granted: 1999-11-09
Abstract: An injection molding probe with an elongated outer body has an electrical heating element wound in a helical coil around a central thermocouple tube integrally braze filled in silver in the body. A thermocouple bore extends through the tube into the silver adjacent the forward end of the body. This improves temperature control of the melt flowing around the probe and also facilitates manufacture.
Patent CA-2062946-C (CA)
Title: Charge sensor and spectrometers incorporating it
Inventor: BIRKINSHAW KEITH
IPC: G01T1/24
Filed: 1990-06-29
Granted: 1998-12-22
Abstract: The invention is a sensor for electrical charge fabricated as an integrated circuit and comprising an electrode (1) for receiving charge, a potential-sensitive switching means (2) for generating a pulse whenever the charge received on the electrode (1) is sufficiently great, a counting means (4) for counting the number of times the switching means operates, and a means (3) for restoring the potential on the electrode (1) to its initial potential each time the switching means (3) operates and/or continuously towards its initial potential An integrated circuit comprising an array of such sensors and digital logic for controlling their operation  is disclosed. The array may be used as a multiple-channel detector for charged particles, particularly as a detector for electrons emerging from a channel plate electron multiplier. Dispersive particle and photon spectrometers, especially mass spectrometers, using such a detector are also disclosed.
Patent CA-2063031-C (CA)
Title: Process for upgrading copper sulphide residues containing nickel and arsenic
Inventor: KERFOOT DEREK G E
IPC: C22B3/20
Filed: 1992-03-13
Granted: 1999-01-19
Abstract: A   process   is   disclosed   for  separating  and recovering nickel and copper  values  from  a nickel-copper matte which  may contain  iron and arsenic.  Finely divided nickel-copper matte is leached  in  aqueous  sulphuric acid solution under oxidizing conditions at atmospheric pressure and at a  minimum temperature of  about 80°C  to selectively leach nickel  from the  matte to  produce a nickel sulphate solution having a final  pH in  the range  of about  4.0 to 6.5,  preferably  about  6.5,  and to produce a copper-rich sulphide residue.    The  copper-rich  sulphide  residue is separated from  the nickel sulphate solution and leached in a closed reaction vessel at a  minimum temperature  of about 120°C under  a non-oxidizing atmosphere in a sulphuric acid solution  containing  an  effective  amount  of  copper and sulphuric acid  to provide  a terminal  concentration of at least about 2 g/L Cu2+ and at least about 20  g/L sulphuric acid to  produce a  nickel sulphate solution containing any iron  and  arsenic  and  to  produce  a  low  nickel copper sulphide product essentially free of iron and arsenic.
Patent CA-2063092-C (CA)
Title: Solenoid operated pressure regulating valve
Inventor: MCCABE RALPH P
IPC: G05D16/00
Filed: 1992-03-16
Granted: 1994-12-06
Abstract: SOLENOID OPERATED PRESSURE REGULATING VALVE                  Abstract of the Disclosure A  pressure  control  device, preferably  for use in a control system of an automatic transmission of a motor vehicle, is shown as having a solenoid motor assembly the armature of which,  through a cooperating servo orifice,  is effective for varying the magnitude of pressure of a fluid medium acting upon a spool slave-like valving member which ultimately provides a fluid medium to associated fluid medium receiving structure; a fluid  medium  flow  restriction  formed  as  of  sintered metal enables  the fluid medium to flow in and through the control device to thereby bring about purging of air and other gases from within said control device.
Patent CA-2063157-C (CA)
Title: Repeater station wherein input frame data are accessible
Inventor: SUZUKI EIJI
IPC: H04L25/52
Filed: 1992-03-16
Granted: 1996-03-26
Abstract: A repeater station comprises an RFD frame synchronization circuit, an AND gate, and an IFD frame synchronization circuit.  The RFD frame synchronization circuit outputs a frame synchronization signal indicating the timing of an auxiliary signal by performing frame synchronization with regard to the RFD. The AND gate inhibits clock signals during periods of the auxiliary signals and allows the clock signals to pass through during the other periods.  The IFD frame synchronization circuit performs frame synchronization of the RFD with regard to the IFD by carrying out frame synchronization operation in accordance with the clock signals output from the AND gate.  The IFD are accessible in the above simple construction.
Patent CA-2065113-C (CA)
Title: Ground anchor
Inventor: HUGRON DENIS P
IPC: E02D5/80
Filed: 1992-04-03
Granted: 2003-03-18
Abstract: A ground anchor adapted to be driven into the ground comprises an elongated flat plate having a first bent portion at one end forming a U-shaped throat along one side of the plate and a second bent portion at the end opposite the first mentioned end slightly inclined relative to the flat surface of the plate in the direction opposite the throat. A cable is secured at one of its ends, to the plate, at an intermediate portion between both ends of the plate. The intermediate portion is located in the direction of the second bent relative to the center of gravity of the plate. The end of the cable forming a closed loot has an aperture adjacent the plate and on the same side of the plate as the throat. The loop and the throat are adapted to upstandingly retain the rod while the latter is impacted for driving the anchor into the ground, and the plate is adapted to tilt about the loop when the cable is pulled upwardly thereby imparting a plowing effect of the plate in the ground.
Patent CA-2069780-C (CA)
Title: Automated attendant
Inventor: CALLELE DAVID
IPC: H04Q3/72
Filed: 1992-05-28
Granted: 1999-09-28
Abstract: A device and method for interfacing a telephone to the telephone network is disclosed for receiving the ICLID of incoming telephone calls and responding in a predetermined manner. An ICLID receiver detects the presence or absence of the ICLID of an incoming telephone call, and receives the ICLID if present. In accordance with predetermined instructions and with the absence of an ICLID or the presence and identity of the ICLID, the device may acknowledge receipt of the ICLID to the incoming caller by generating a brief confirmation tone at minimum charge to the calling party, cause the incoming call to be answered or not answered, and may forward the incoming ICLID information to a predetermined location over the telephone network or by other means.
Patent CA-2073856-C (CA)
Title: Glp-1 analogs useful for diabetes treatment
Inventor: BUCKLEY DOUGLAS I
IPC: C07K14/605
Filed: 1991-01-24
Granted: 2002-12-03
Abstract: The invention provides effective analogs of the active GLP-1 peptides, 7-34, 7-35, 7-36, and 7-37, which have improved characteristics for treatment of diabetes Type II. These analogs have amino acid substitutions at positions 7-10 and/or are trun-cated at the C-terminus and/or contain various other amino acid substitutions in the basin peptide. The analogs may either have an enhanced capacity to stimulate insulin production as compared to glucagon or may exhibit enhanced stability in plasma as compared to GLP-1 (7-37) or both. Either of these properties will enhance the potency of the analog as a therapeutic. Analogs having D-amino acid substitutions in the 7 and 8 positions and/or N-alkylated or N-acylated amino acids in the 7 position are particularly resistant to degradation in vivo.
Patent CA-2078177-C (CA)
Title: Detonator ignition circuitry
Inventor: BRAUN CHRISTOPHER G
IPC: F42C11/00
Filed: 1992-09-14
Granted: 1997-04-22
Abstract: A trigger offset signal is applied at the control terminal of an electronic switch in the circuitry, to substantially nullify the effect of RF noise and static electricity on the conductivity of that switch.  In the preferred embodiments of the invention, this offset signal is derived from at least one capacitor which is connected to that control terminal through the normally opened contacts of a target arrival switch on a missile warhead.  The electrical energy required for detonator ignition may also be applied from at least one capacitor in such embodiments and shunt resistors may be connected to dissipate the energy stored in these capacitors for safety reasons.
Patent CA-2081535-C (CA)
Title: Method and apparatus for detecting control signals
Inventor: LINDBERG CRAIG ROBERT
IPC: H04Q1/457
Filed: 1992-10-27
Granted: 1997-02-04
Abstract: The present invention provides a method and apparatus for detecting control signal information for an element of a communication system. The controlsignal information is included in one or more segments of a signal communicated over a communication system channel. The invention provides for the application of a plurality of tapers to a segment of a communicated signal; the transformation of a tapered segment; the determination of a similarity score based on a transform of a tapered segment and a model of a control signal; the identification of control signal information based on a similarity score; and the creation of an indicator signalrepresentative of the identified control signal information to the communicationsystem element. The control signal information may comprise a dual-tone multi-frequency signal. The tapers may comprise a discrete prolate spheroidal sequence. A similarity score may be determined based on a ratio of energy distributions. The numerator of the ratio may comprise an energy distribution based on a control signal model, and the denominator of the ratio may comprise an energy distribution based on a difference between a transformed tapered segment and the control signal model.
Patent CA-2086926-C (CA)
Title: Noise sound controller
Inventor: NAGAMI MASAAKI
IPC: G10K11/178
Filed: 1992-05-26
Granted: 1996-09-17
Abstract: A noise sound controller being capable of following a sudden change in a noise period, includes a differential signal calculation means 5 that calculates a differential signal between an output from a sound wave-electric signal converter 2 and an output from an adaptive filtering means 6, a transfer characteristics simulation means 4 that is inserted between the adaptive filtering means 6 and the differential signal calculation means 5, and simulates transfer characteristics of a system from the adaptive filtering means 6 to the differential signal calculation means passing through the electric signal-sound wave converter 3 and the sound wave-electric signal converter 2, a period-detecting unit 7 that detects the noise period of noise from a noise source 1, a period-adjusting unit 8 that varies the period of an output signal from the differential signal calculation means 5 depending upon an amount of change in the noise period, and a period detect/control means (10) that changes filter coefficients of the adaptlve filtering mens 6 depending on estimated change in the noise period.
Patent CA-2087027-C (CA)
Inventor: PRINCE PAUL R
IPC: A61M1/26
Filed: 1991-07-22
Granted: 2002-09-24
Abstract: A method and system for adaptively controlled withdrawal/infusion of a fluid, such as blood, to or from a fluid source, such as a blood vessel. An adaptive flow rate limit is established and periodically adjusted during the course of withdrawal/infusion so as to maximize and optimize the withdrawal/infusion rate while, at the same time, providing for rapid corrective adjustments in flow rate responsive to early indications of flow disruption, such as occlusion or collapse of the blood vessel during blood withdrawal. The method and system of the invention is particularly applicable to automated apheresis systems.
Patent CA-2091775-C (CA)
Title: Probe system for performing hla dr typing and typing method using said probes
Inventor: ALLIBERT PATRICE ANDRE
IPC: C12Q1/6881
Filed: 1992-07-17
Granted: 2003-02-25
Abstract: A set of nucleotide probes for determining HLA DR types and/or related types by means of commonly used typing techniques using oligonucleotides, wherein said set of probes includes at least the following nucleotide probes (the underligned portion represents the optimal sequence) (I). Said probes may be labelled, covalently coupled to a ligand which facilitates their attachment to a solid support, or attached to a solid support. The use of the probes in a HLA DR typing method, e.g. as capture probes according to the sandwich technique, is also described.
Patent CA-2092812-C (CA)
Title: Concealable birthing room light
Inventor: CRISPIN GEORGE E
IPC: F21V21/04
Filed: 1991-09-27
Granted: 1995-04-25
Abstract: A concealable surgical light device such as for a birthing room has a frame for supporting the light (5) on one side and a decorative panel (11) on the other side. The frame includes reinforcing ribs positioned in a Y shape, and a cylindrical section at the intersection of the ribs for attaching the light (5). The frame is rotatably supported inside a housing which is fixed within the ceiling structure.
Patent CA-2093977-C (CA)
Title: Synergistic fly attractant composition
Inventor: WINSLOW RONALD B
IPC: A01N37/02
Filed: 1993-04-14
Granted: 2004-01-20
Abstract: Method for the preparation of an insect attractant composition which includes a trialkylamine salt, an alkali salt of a carboxylic acid and a pheromone in a suitable aqueous solution.
Patent CA-2099259-C (CA)
Inventor: BISHOP GARY A
IPC: G01N21/35
Filed: 1991-12-20
Granted: 1999-06-15
Abstract: Enter the French Abstract.Dispositif d'analyse de gaz (10) servant à la détection, la mesure et l'enregistrement à distance des niveaux de NOx, CO, CO2, HC et H2O provenant de l'échappement (30) de véhicules automobiles en déplacement (28). Ledit dispositif utilise une source (11) de rayonnement collimaté d'infrarouges et d'ultraviolets (15) et comprend un mécanisme (16) placé sur le côté opposé de la route et servant à recevoir et à mesurer le rayonnement infrarouge et ultraviolet provenant de la source (11) et transmis par l'échappement du véhicule. Le mécanisme de réception divise le rayonnement combiné d'infrarouges et l'ultraviolets en faisceaux séparés d'infrarouges et d'ultraviolets (42) et (40). Un mécanisme (44) reçoit le faisceau ultraviolet séparé et émet un signal indiquant la présence de NOx. Un autre mécanisme (27) divise le faisceau infrarouge en deux, trois ou quatre composantes, et des dispositifs (35) sont positionnés pour recevoir chacune desdites composantes d'infrarouges et pour produire deux, trois ou quatre signaux indiquant, par exemple, la présence de CO, CO2, HC et H2O. Un autre mécanisme associé (17) effectue alors un calcul et émet des signaux indiquant la quantité de CO, CO2, HC, NOx et H2O se trouvant dans le trajet du rayonnement d'infrarouges et d'ultraviolets à partir de la source et, de ce fait, il peut mesurer les émissions de véhicules.
Patent CA-2099801-C (CA)
Inventor: SILLS ARTHUR A
IPC: A47K3/022
Filed: 1993-07-05
Granted: 2004-01-20
Abstract: The bath tub (10) having side access has a main tub body (12), a door support, a tambour door assembly (16), a door seal 18 and a control system (20). The door support includes door guide assemblies (64). A tambour door (66) with a plurality of tambour slats (76 or 401) and a flexible impervious membrane (86) is guided by the door guide assemblies (64). The tambour door (66) is in a horizontal position under the floor (27) when it is open and in a vertical position closing the open side (28) of the main tub body (12) when it is closed. A seal (18) seals between the main tub body and the membrane (86). The seal (18) includes a tube (155) that is inflated to seal between the main tub (12) and the tambour door (66). The control system (20) closes the drain 46 when the tambour door (66) is closed and the seal (18) is inflated and the tambour door (66) is constrained in the closed position. The tambour door is constrained in the closed position until the control system 48 senses that the water level in the tub has dropped below a predetermined level and the seal (18) is deflated. A valance (114) limits movement of the tambour door (66) away from the seal (18).
Patent CA-2101477-C (CA)
Inventor: ITO MICHIO
IPC: B65G43/08
Filed: 1993-07-28
Granted: 1996-12-10
Abstract: One or more kinds of plenty scattered parts are successively fed out of an automatic feed unit. The successive parts are then conveyed at a high speed by a conveyer belt. Then the conveying belt is automati-cally shifted down to a low speed when first parts detecting means detects that a leading end of the suc-cessive parts being conveyed at the high speed has ar-rived at a forward end of the conveyer belt. The con-veyer belt is then automatically stopped temporarily when second parts detecting means detects that the leading end of the successive parts being conveyed has fallen from a turn end of the conveyer belt as shifted down to the low speed.
Patent CA-2112022-C (CA)
Inventor: MARCOUT ALAIN
IPC: F16L55/165
Filed: 1993-12-21
Granted: 2004-11-30
Abstract: The invention relates to a flange (33) which can be connected to a length of pipe which is to be renewed (ia) and which comprises a series of separable disc-shaped elements individually constituted by a plurality of parts.      Sealing-tight gaskets are interposed with a clamping effect between two element parts and between two adjacent disc-shaped elements. By means of a terminal flange element (33e) it is possible also to place at the end of the flange a monitoring device or a counter-flange (77) for guiding a casing pipe (35). The flange may be dismantled when casing is completed. The invention is applied particularly to the renewal of gas pipes.