baber/WOPTO huggingface dataset:
Patent CA-1220995-A (CA)
Inventor: LARKINS BRUCE T
IPC: F24B1/192
Filed: 1984-01-18
Granted: 1987-04-28
Abstract: Abstract of the Disclosure A fireplace screen arrangement is disclosed which includes a frame upon which a pair of mesh screen doors are pivotally mounted for movement between closed and open positions with respect to the fireplace.  A damper assembly is provided for regulating the amount of air which is admitted to the fireplace through the screen arrangement.  In order to provide convenient opening of the screen doors, a door-opening mechanism is provided which includes a door-engaging lever fulcrummed for pivoting movement with respect to the frame.  An operating knob is operatively connected with the door engaging lever so that inward movement of the knob moves the screen doors from their closed position.  In the preferred embodiment, the operating knob is operatively connected with a movable damper plate for moving the damper plate laterally to regulate air admitted through the damper assembly.  In this manner, convenient use of the fireplace is enhanced, with the door-opening mechanism permitting a user to easily open the screen doors for tending the fire in the fireplace.
Patent CA-1213051-A (CA)
Inventor: AARTS RONALDUS M
IPC: H03G11/04
Filed: 1984-01-26
Granted: 1986-10-21
Abstract: ABSTRACT:          "Apparatus for reading an optical record carrier."     Faults in servo control systems as a result of, for example, signal spikes caused by inter alia thickness variations of, air bubbles in, and scratches and dust particles on the substrate of the record carrier in an apparatus for reading an optical record carrier, can be suppressed effectively by arranging a limiter in the servo control system of said apparatus. Suitably, the limiter has an adaptive nature, i.e. the limiting levels are adapted to the amplitude of the servo signal.
Patent CA-1245155-A (CA)
Title: Immunoglobulin-g-containing fraction
Inventor: EIBL JOHANN
IPC: A61K38/00
Filed: 1984-03-08
Granted: 1988-11-22
Abstract: ABSTRACT OF THE DISCLOSURE:     There is disclosed an immunoglobulin-G-containing frac-tion from human or animal plasma which contains at least 90 % monomer IgG molecules as well as at least 95 % gammaglobulins and is suited for intravenous application.          In order to provide such a fraction, which, in addition, is free of side effects in an optimum manner, the fraction contains at least 90 % functionally intact IgG molecules.
Patent CA-1253460-A (CA)
Inventor: INGEMANN OLE
IPC: B65D77/20
Filed: 1984-03-22
Granted: 1989-05-02
Abstract: Abstract of the Disclosure A container is composed of a lid and a container body with a flange, the lid and the flange being disposed in order to assume fixed positions relative to one another in an originally sealed con-tainer and thereby achieve a tight closure of the container.  The container includes, in accordance with the invention, a frame-like connection device which is disposed with a first attachment section and a second attachment section which by means of tight joints are affixed to the flange and to the lid respectively, enabling the connection device in combination with the lid to form a tight closure of the container body.  In a preferred embodiment, the joints are weld joints. In a preferred embodiment, a weakening zone is disposed between the two attachment sections in addition to which a downward-facing flange is also disposed in this region.  In a resealed container, the outer sur-face of the flange abuts sealingly an inner surface of the orifice wall of the container.  In certain embodi-ments, the walls of the container, the lid and the connection device are disposed with layers of high-barrier material.
Patent CA-1222543-A (CA)
Title: Lithium alloy dense anodes for all solid batteries
Inventor: BELANGER ANDRE
IPC: H01M4/02
Filed: 1984-04-11
Granted: 1987-06-02
Abstract: The disclosure describes an anode made of a thin metallic foil in discharged condition which is converted into a dense metallic alloy of an alkali metal during the first charge. The disclosure also describes an electrochemical rechargeable battery in discharged condition. The latter comprises an anode made of a thin metallic foil, such as aluminum, magnesium or tin, an electrolyte, for example a polymeric electrolyte, as well as a cathode based on an oxide, a sulfide or an halide, prepared in discharged condition and constituting a source of alkali metal preferably lithium. The cathode should be capable of freeing the alkali metal under a charge so that the latter is introduced into the metallic foil to form an alloy of the alkali metal and of at least a portion of the metal consitituting the metallic sheet. To obtain the charged batery, it is merely sufficient to apply a charge during a certain period of time while the anode is being transformed into an alloy. Substantially improved properties during cycling.
Patent CA-1220747-A (CA)
Title: Apparatus for the synthesis of chemical compounds
Inventor: HUNKAPILLER MICHAEL W
IPC: C07H21/04
Filed: 1984-04-18
Granted: 1987-04-21
Abstract: IMPROVED APPARATUS FOR THE SYNTHESIS OF CHEMICAL COMPOUNDS     ABSTRACT OF THE DISCLOSURE     An improved apparatus for the synthesis of more complex oligonucleotide compounds from simpler chemical compounds wherein at least one of said simpler chemical compounds is carried on a solid matrix comprising a plurality of beads located within a reaction chamber and is sequentially subjected to a plurality of other simpler chemical compounds passed through the chamber in a stream, causing chemical interaction between the simpler chemical compounds to form said more complex compounds.     A novel process which comprises the introduction into a primary reaction zone containing therein a solid support, a plurality of fully activated nucleosides and permitting said plurality of nucleosides to react simultaneously on said solid support to form an oligonucleoside.
Patent CA-1223510-A (CA)
Inventor: EIKENBERRY JON N
IPC: C12Q1/40
Filed: 1984-05-23
Granted: 1987-06-30
Abstract: ANALYTICAL ELEMENT HAVING IMPROVED          SPREADING ZONE AND METHOD OF USE               Abstract of the Disclosure A dry element capable of use for the analysis or transport of liquids comprises an isotropically porous zone which comprises a blush polymer having dispersed wherein a particulate material and a nonpolymeric heterocyclic, aliphatic or carbocyclic quaternary ammonium compound comprising at least 12 carbon atoms therein.  This compound is present in the porous zone in an amount of at least about 2 weight percent, based on the dry weight of the blush polymer.  The porous zone of this element has improved cohesive strength which improves its resistance to abrasion.  The element can be used to determine an analyte in an aqueous liquid, such as biological fluids.
Patent CA-1207386-A (CA)
Inventor: HENNEVIN BERNARD
IPC: H03K17/08
Filed: 1984-05-29
Granted: 1986-07-08
Abstract: An equalizer circuit for switches connected in series between a voltage source (21) and a load (16), each switch (4, 11) being connected in parallel with a respective equalizing capacitor (2, 9) via a respective diode (7, 8). The circuit further includes a transformer (20) having a plurality of windings (6, 13) connected in series with respective diodes (5, 12), with each switch having a respective winding-diode series connection connected in parallel therewith. In this manner, electrical energy initially stored in the capacitors is transferred to be stored in magnetic form by the windings when the switches are closed and is re-used when the switches are opened to accelerate charging of the less charged capacitors until all the capacitors reach the voltage of the most charged capacitor. The invention is particularly applicable to semiconductor switches such as transistors or gate turnoff thyristors connected in series and needing protection against exposure to excessive voltages due to differences in switching times between switches.
Patent CA-1231667-A (CA)
Inventor: BORROW EDGAR W
IPC: F16K11/06
Filed: 1984-06-22
Granted: 1988-01-19
Abstract: ABSTRACT OF THE DISCLOSURE     Apparatus   for  mixing  together  milk,   a  fluoride solution  and  a  flavoring  solution  to  produce  a pleasant-tasting fluordiated beverage,  comprises  two sets   each  of  three  vessels  for  containing   the respective  liquids  to be mixed.  The volumes of  the three  vessels  are in the proportions  in  which  the liquids  are  to be mixed and inlet flows from  supply tanks  of  the three liquids are metered to  fill  the three  vessels simultaneously.  A common  inlet  valve shuts   off  the  three  supplies  simultaneously  and operation  of the inlet valve automatically opens  the outlet  and  mixing valve.  As one set of  vessels  is filled,   the   other   is  emptied   to   provide   a substantially continuous flow of the beverage.
Patent CA-1211846-A (CA)
Inventor: FARAH ROBERT L
IPC: H03M7/32
Filed: 1984-06-26
Granted: 1986-09-23
Abstract: BIT COMPRESSION CODING WITH EMBEDDED SIGNALING            ABSTRACT         A bit compression coding circuit incorporates signaling bit insertion. An input signal sample(s) representing, for example, PCM encoded speech or voiceband data, is delivered to a difference circuit where a predicted signal (se) is subtracted from it.  The predicted signal is an estimate of the input sample derived from a predictor.  The resultant difference signal is coupled to the input of an adaptive quantizer which provides at its output a bit compressed quantized differential PCM version of the difference signal.  A multiplexer receives the output of the quantizer and serves to periodically preempt the least significant bit of the bit compressed PCM signal and substitute a signaling bit therefor.  The output ofthe multiplexer is coupled to the input of an adder wherein it is added to the predicted signal.  The result of this addition is coupled to the input of the predictor, which in response thereto serves to generate the next predicted signal for comparison with the next input signal sample.  An adaptation control circuit is responsive to the output of the multiplexer and serves to control the speed of adaptation of the adaptive quantizer.
Patent CA-1211848-A (CA)
Title: Data processing system with logical processor  facility
Inventor: DORAN ROBERT W
IPC: G06F9/48
Filed: 1984-08-17
Granted: 1986-09-23
Abstract: Abstract A host computer which functions as one or more variant systems.  The host computer stores one or more system control programs, SCP's, where each SCP is provided for production operation of the host computer.   The host computer includes common control means for all of the SCP's  for  controlling  the  host  computer.   The  host computer also includes extended control means responsive to the one or more SCP's to make the host computer appear as one or more variant systems.  The extended control means in the host computer ensures efficient operation of the host computer during production runs of each one or more of the SCP's.
Patent CA-1223407-A (CA)
Inventor: KASPER GARY A
IPC: A47L11/03
Filed: 1984-08-28
Granted: 1987-06-30
Abstract: WET-DRY VACUUM CLEANING APPARATUS                   Abstract Of The Disclosure A wet-dry vacuum cleaning apparatus having a vacuum tube and a head supporting a discharge nozzle at one end of the tube.  An assembly is attached to the tube and includes a valve for controlling flow of liquid to the nozzle.  The assembly includes a container for detergent adapted to selectively mix with water upstream of the valve.  The assembly includes a device for permitting selective intro-duction of water into said container.
Patent CA-1244719-A (CA)
Inventor: LEIGH JOHN WILLIAM
IPC: F16B3/00
Filed: 1984-09-10
Granted: 1988-11-15
Abstract: ABSTRACT Title:  Modular Ground Mine A naval ground mine comprising two modules (1, 2) each having a cylindrical casing (4) containing explosive material.  The modules have mating end faces (5), each provided with a spigot (6).  Lips (7) on adjacent spigots form an annular projection which tapers in a radially outward direction.   The two modules (1, 2) are held together by a split  ring  (3)  having a corresponding internally tapered surface (9), which embraces this annular projection.  As the ring  (3)  is tightened,  the adjacent end faces (4, 5) are drawn tightly together.   The external surface of the ring provides a smooth transition between the external surfaces of the modules, so as to minimise surface discontinuity and the possibility of detec-tion by sonar.
Patent CA-1248899-A (CA)
Inventor: NEEL EMMANUEL E A
IPC: C10G45/46
Filed: 1984-09-18
Granted: 1989-01-17
Abstract: A B S T R A C T        PROCESS FOR THE HYDROISOMERIZATION OF PETROLEUM WAXES      Process for the hydroisomerization of petroleum waxes by contacting said waxes with hydrogen at hydroisomerization con-ditions using a catalyst comprising at least one hydrogenating metal or compound thereof present on at least one refractory oxide which has been treated with from 0.1 to 30 %w, calculated on refractory oxide, of at least one reactive metal compound of Group 2a, 3a, 4a and/or 4b of the Periodic Table of the Elements.
Patent CA-1218869-A (CA)
Inventor: STRACHAN J SCOTT
IPC: H01L41/08
Filed: 1984-09-27
Granted: 1987-03-10
Abstract: - i -Abstract of the Disclosure A force transducer device adapted to function in a system having electrical means to cause the device to oscillate at its natural resonant frequency and means to monitor said frequency, the device having an intermediate resilient member curved on at least one side and being capable of mechanically oscillating at a natural resonant frequency, piezoelectric transducer sheets on each side of said resilient member and electrical leads for connecting the transducer sheets into said system, is disclosed herein.
Patent CA-1249561-A (CA)
Inventor: GARDNER JOHN F
IPC: F16K49/00
Filed: 1984-10-18
Granted: 1989-01-31
Abstract: ABSTRACT OF THE DISCLOSURE   A butterfly valve assembly and method of making the same are provided wherein such valve assembly has a valve body structure and a closure structure and is provided with an improved device for locking, in its closed position, a shaft assembly which is used to operate the closure structure.  In accordance with another feature of the invention an improved butterfly valve and method of making same are provided wherein such butterfly valve has improved heat exchange means disposed in the outer periphery of its valve body structure for controlling the temperature thereof.
Patent CA-1221382-A (CA)
Inventor: DESBOIS MICHEL
IPC: C07C49/83
Filed: 1984-12-21
Granted: 1987-05-05
Abstract: A process for the preparation of benzophenones. A compound of the formula COX4X5, where X4 and X5, which may be identical or different are halogen atoms, is reacted, in liquid hydrofluoric acid, with a deactivated benzene derivative, in the presence of boron trifluoride in such amount that the absolute pressure of boron trifluoride in the reaction space is at least one bar.
Patent CA-1230367-A (CA)
Inventor: OLPP HANS
IPC: B62B15/00
Filed: 1984-12-31
Granted: 1987-12-15
Abstract: ABSTRACT OF THE DISCLOSURE         A ski for the handicapped including a seating shell mounted on a mono-ski or a pair of parallel skis. The seating shell is mounted on either the mono-ski or the parallel skis.    The seating shell includes at least one seating area and a longitudinally spaced leg supporting area.  A tow and supporting bar assembly is provided which is pivotably mounted to the seating shell and engages, when desired, the ground. The tow and supporting bar assembly includes a tow bar holder which releasably engages with a T-bar device.
Patent CA-1239399-A (CA)
Inventor: TAKEDA MIKIO
IPC: C07D281/10
Filed: 1985-02-15
Granted: 1988-07-19
Abstract: ABSTRACT OF DISCLOSURE     The invention provides novel 1,5-benzothiazepine derivatives of the formula:                     (I) wherein R1 is lower alkyl or lower alkoxy, R2 is hydrogen atom or lower alkanoyl, each one of R3 and R4 is lower alkyl, Ring A is a substituted benzene ring of the formula:       Ra is lower alkyl, lower alkoxy, lower alkylthio or benzyloxy, each one of Rb and Rc is lower alkyl, lower alkoxy or halogen atom, and either one of Rd and Re is fluorine atom and the other one is hydrogen atom, or pharma-ceutically acceptable acid addition salts thereof.  These derivatives (I) and their salts are useful as hypotensive agents and/or as cerebral or coronary vasodilators.
Patent CA-1220876-A (CA)
Inventor: INATA TSUGUO
IPC: H01L21/338
Filed: 1985-03-07
Granted: 1987-04-21
Abstract: ABSTRACT In order to make an IC comprising a high electron mobility semi-conductor device, it is necessary to ensure that the carrier in the channel layer does not lose its high mobility by virtue of thermal treatment in the IC fabrication process.  It has been found that the mobility of two dimensional electron gas (2DEG) is lost by scattering of ionized impurity diffused from the doped layer into the spacer layer which separates the 2DEG in the channel layer from the doped layer.  According to the invention, another spacer (second spacer) is inserted between the spacer (first spacer) and the doped layer to prevent the diffusion of impurity.  The proposed multilayered structure is as follows.  A channel layer made of i-GaAs is formed on a high resistivity GaAs substrate.  A first spacer layer of undoped AlxGal-xAs is formed over the channel layer and the second spacer layer of i-GaAs is formed over the first spacer layer.  A doped layer of n-Al Gal  As is then formed over the second spacer layer.  The thickness of the second spacer layer is approximately 20 .ANG., and that of the first spacer is approximately 40 .ANG.. Applying such structure to the high electron mobility transistor, it can withstand the heat treatment of 750°C for 10 min. and annealing at more than 950°C for 10 sec. without loss of mobility.
Patent CA-1247435-A (CA)
Inventor: MATRICK HOWARD
IPC: C08L27/00
Filed: 1985-03-26
Granted: 1988-12-28
Abstract: Title Toners Treated With Polymeric Quaternary Ammonium Salts And Slip Agent Abstract of Invention Dry nonelectroscopic toner comprising pigmented organic resin particles having a size distribution of 0.2 to 30 micrometers, surface coated with at least 0.1% by weight of silicone oil or fluorocarbon compound, in combination with at least 0.5% by weight of a water soluble, polymeric quaternary ammonium compound as defined.  The toner is useful in color developing positive- and negative-working photosensitive elements.  The toners, particularly magenta and cyan, exhibit high density and excellent stability.
Patent CA-1255636-A (CA)
Inventor: AMBRIDGE RICHARD J
IPC: B60P3/12
Filed: 1985-04-25
Granted: 1989-06-13
Abstract: ABSTRACT OF THE DISCLOSURE               TOWING VEHICLE          A towing vehicle is disclosed of the type which has means at the rear thereof for applying a lifting force to a vehicle being towed.  It is provided with at least one mass mounted for movement longitudinally of the vehicle to vary the front axle loading of the vehicle.  This enables the steering ability of the vehicle to be maintained even when lift towing a large load.
Patent CA-1230409-A (CA)
Inventor: COURSANT ROGER H
IPC: G01N29/04
Filed: 1985-05-15
Granted: 1987-12-15
Abstract: ABSTRACT:            Ultrasonic transducer arrangement comprising a network of piezcelectric transducer elements.     An ultrasonic transducer arrangement comprising a network of piezoelectric parallel transducer elements having a width W or in the form of a parallelepipedon having a length L and a width W, characterized in that the thickness T of the said transducer elements is equal to half the wavelength corresponding to a frequency F equal to the average value of at least two of the successive piezoelectric resonance frequencies of the piezoelectric material concerned, the products of the said thickness and the said resonance frequencies framing, in the bidimensional diagram of the curves F.T = f(W/T) of the spread of the resonance frequencies relating to the piezoelectric material concerned or in the tridimensional diagram of the curves F.T = f(W/T,L/T), coupling zones of at least two successive vibratory modes of this material.        Application: Echograph comprising assemblies of transducers.      Reference: Fig. 2.
Patent CA-1254278-A (CA)
Inventor: JONES GARDNER D JR
IPC: H04B3/23
Filed: 1985-05-17
Granted: 1989-05-16
Abstract: METHOD AND APPARATUS FOR IMPROVED CONTROL AND TIME            SHARING OF AN ECHO CANCELLER                          Abstract An improved echo canceller control method utilizes two adaptive level detectors for controlling or inhibiting the updating of coefficients in the echo canceller.  Updating is permitted only when an actual received signal is present and no transmit signal as measured by the adaptive level detector exists.  During periods when no transmit or receive signals are present, update is inhibited and the adaptive level detector establishes a noise reference level.  When transmission activity is present but no receive activity is present, inhibiting of the echo canceller updating allows the adaptive level detector to seek and establish the background noise reference level and avoids the disruption of the echo canceller coefficients that would occur from double talk if a receive signal were suddenly to become present.  When actual double talk, i.e., both receive and transmit activities are present occurs, updating is also inhibited for the same reason.  Since channel activity is typically present only 30-40% of the time in either transmit or receive mode, the echo canceller will spend the remaining 70-60% of its time inhibited and can be shared with other channels which do have the appropriate activity for updating separate echo canceller coefficients.  If the coefficients are separately stored in association with each channel as is the case in this invention, the echo canceller coefficients are loaded whenever updating is to take place for a given channel.
Patent CA-1246534-A (CA)
Inventor: OUDEJANS JOHANNES C
IPC: B01J35/10
Filed: 1985-06-20
Granted: 1988-12-13
Abstract: ABSTRACT            The invention provides a nickel/alumina/silicate catalyst, with an atomic ratio of nickel/aluminium between 20 and 2, a nickel/silicate ratio between 20 and 1, an active nickel surface area between 70 and 150 m2/g nickel and an average pore size, depending on the above atomic ratio, between 4 and 20 nanometers. Preferably the nickel/aluminium atomic ratio is between 10 and 4 and the nickel/silicate ratio between 12 and 3. Preferably the catalyst has a specific porous structure.            The invention also provides a method for preparing the catalyst by a two step process involving precipitating nickel ions and adding during a second, so-called ageing step a soluble aluminium compound and optionally the silicate. The silicate is preferably added during a second ageing step.            The catalyst is useful for hydrogenating unsaturated organic compounds in particular oils.
Patent CA-1245044-A (CA)
Inventor: VINCENT HAROLD L
IPC: C09B67/46
Filed: 1985-08-30
Granted: 1988-11-22
Abstract: ANIONIC SILICONATES OF SILYLORGANOCARBOXYLATES, SULFONATES AND PHOSPHONATES TO REDUCE VISCOSITIES              OF PARTICULATE SLURRIES              ABSTRACT           What is disclosed is a method of reducing the viscosities of aqueous slurries of particulate materials using anionic siliconates of silylorganocarboxylates, sulfonates and phosphonates and the compositions that are obtained thereby.