baber/WOPTO huggingface dataset:
Patent CA-1285907-C (CA)
Title: Minerals separator
Inventor: MOZLEY RICHARD H
IPC: B03B5/28
Filed: 1987-05-21
Granted: 1991-07-09
Abstract: ABSTRACT To separate minerals, they are made up into a slurry applied through feed pipe 46 to a vertical-axis spiralinder 32 spinning on its axis to generate 10g centrifugal force.    The spiralinder is also subjected to axial vibration at 5 to 10Hz. A film of slurry is held centrifugally to the internal surface of the  spiralinder  and kept  in  suspension  by the vibration.   The denser  (i.e.  higher  specific  gravity)  particles  in  the  slurry tend  to  be  most  firmly  pinned  centrifugally.   The  lightest particles thus drop first into the trough 44 and are dumped by switchable box 45.   The centrifugal  spinning is then slowed and the dense particles scoured off by wash water.    The whole cycle is then repeated.
Patent CA-1301617-C (CA)
Inventor: FEYGIN MICHAEL
IPC: H01S3/00
Filed: 1987-06-05
Granted: 1992-05-26
Abstract: ABSTRACT           An apparatus and method for forming an integral three-dimensional object from laminations of the same or gradually varying shape.  The apparatus includes a supply station, a work station for forming a material into a plur-ality of laminations for the three-dimensional object, a control station for directing the operation of the work station, an assembling station for stacking the laminations in sequence into the three-dimensional object, and bonding the laminations to complete the formation of the three-dimensional object.  The method includes the steps of pro-viding a work station for forming the laminations for the three-dimensional object, providing the material which can be a bimaterial composite, providing a control station for directing the operation of the work station, entering data concerning the three-dimensional object at the control sta-tion, instructing the control station to direct the opera-tion of the work station, assembling the laminations in sequence into the form of the three-dimensional object, and integrally bonding the laminations to complete the formation of the integral three-dimensional object.  By following the method, a unique three-dimensional object formed of indivi-dually contoured laminations of the same or gradually vary-ing shaped is obtained.
Patent CA-1290990-C (CA)
Title: Combustion plant including a circulation fluid bed
Inventor: HERSTAD OLA
IPC: B01J8/00
Filed: 1987-08-12
Granted: 1991-10-22
Abstract: ABSTRACT          A combustion plant includes a circulating fluid bed, which is maintained by the supply of fuel, inert material and oxygen-containing fluidizing gas to a vertical furnace shaft. This is at its upper end provided with an outlet for combustion gases and bed material, which is separated from the gas in a separa-ting  means, and by way of a lock is returned to the furnace shaft  The separating means is of a mechanical type, and loca-ted vertically above a further vertical shaft communicating with the lock. The further shaft encloses distribution means for the particles and a heat exchanger for cooling the par-ticles falling from the gas stream, before they are re-introdu-ced into the furnace shaft by way of the lock.
Patent CA-1300818-C (CA)
Title: Method of producing an asphalt mixture having high skid resistance
Inventor: SUZUKI ICHIRO
IPC: C08L95/00
Filed: 1987-10-30
Granted: 1992-05-19
Abstract: Abstract of the Disclosure Heated aggregate containing nickel slag by amount more than 25% by weight relative to the whole aggregate and filler having a room temperature are introduced into a mixer, the thus introduced materials of aggregate and filler are dry mixed in the mixer, asphalt by an amount of 3.5 to 9.5% by weight relative to the whole mixture is added to the latter and the thus prepared mixture is wet mixed in the mixer whereby a product having higher skid resistance than the conventional asphalt mixture is obtainable.  To practice the method of the invention the asphalt used therefor is heated to such an extent that it has viscosity in the range of 150 to 300 centistokes.       Further, powder of ethylene ethylacrylate copolymer by an amount of 0.1 to 0.8% by weight relative to the whole mixture is added to the mixture prepared in that way and the mixture is then mixed further, resulting in a product having much less deformation rate than the conventional mixture containing rubber, olefin-based copolymer or the like being obtained.
Patent CA-1291478-C (CA)
Inventor: LAWTON GEOFFREY
IPC: C07D487/04
Filed: 1987-12-08
Granted: 1991-10-29
Abstract: Abstract Compounds of the formula                 I wherein R1 and R2 each independently represent hydrogen, C1-C10-alkyl, adamantyl-(C1-C4_ -alkyl) or (C2-C6-alkanoyloxy)-(C1-C4-alkyl), and pharmaceutically acceptable salts thereof possess antihypertensive activity and can be used as medicaments in the form of pharmaceutical preparations. They can be prepared according to known methods.
Patent CA-1323676-C (CA)
Inventor: HERZOG HANS K
IPC: H04L25/493
Filed: 1988-01-12
Granted: 1993-10-26
Abstract: RECIEVE COUPLER FOR BINARY DATA COMMUNICATION SYSTEMS Abstract of the Disclosure A   receive   coupler   for   a   binary   data communication system that transmits signals in rectangular waveform on a data bus (11)  is provided.   The receive coupler includes a transition and polarity detector (17) that differentiates received signals and produces an output pulse on one or the other of two output lines (21a and 21b) for each transition of the received signal, the output line being  dependent  upon  the  rise-fall  direction  of  the transition.  That is, rise transitions create pulses on one output line (21a) and fall transitions create pulses on the other output line (21b).  The receive coupler also includes reconstruction logic (19) connected to the output lines of the transition and polarity detector (17) that reconstructs the receive signal based on the pulses.   The pulses are created  in the  transition and polarity detector by two differentiator-comparator  combinations.     One  differen-tiator-comparator combination differentiates transitions of the  rectangular  waveform  data  signals  amplified  by  a receiver  amplifier (15)  and produces  a pulse when rise transition  exceeds  a  threshold  level  and  the  other differentiator-comparator    combination    differentiates transitions  of the  rectangular  waveform  data  signals amplified by the receiver amplifier (15)  and produces a pulse when fall transition exceeds a threshold level.
Patent CA-1291416-C (CA)
Title: Rotary apparatus
Inventor: BODNAR ERNEST R
IPC: B21D37/12
Filed: 1988-02-11
Granted: 1991-10-29
Abstract: ABSTRACT         A rotary cutting and forming apparatus for strip material, having rotatable upper and lower roll units, the units being connected for synchronous rotation, each of the units having  a carrier member with at least one recess extending parallel to its central axis, and at least one die support block, the block being rotatably received within the recess, and having two ends, and a surface to which a die may be affixed, leading and trailing control pins on the block, extending on parallel spaced apart axes, and leading and trailing cam surfaces engaging respective leading and trailing control pins, to control the position of the blocks during at least part of their rotation.
Patent CA-1301129-C (CA)
Title: Molded plastic luggage carrier construction
Inventor: BOTT JOHN ANTHONY
IPC: B60R9/06
Filed: 1988-02-25
Granted: 1992-05-19
Abstract: ABSTRACT OF THE DISCLOSURE           An article carrier for a motor vehicle comprising at least one generally horizontally arranged molded plastic article supporting slat capable of being fixedly secured to the vehicle and having an end cap mechanism and/or a bracket  for supporting a cross rail or the  like integrally formed into the slat.  The end cap mechanism may include a tie down for securing articles to be supported by the slat.  The slat may have a channel and an insert may be placed in the channel for resilient but sturdy support of articles placed on the slat.  The slat and the article carrier may be of various forms.
Patent CA-1288492-C (CA)
Inventor: VOS GERARDUS J F
IPC: G06F21/86
Filed: 1988-05-02
Granted: 1991-09-03
Abstract: METHOD OF CONTROLLING THE OPERATION OF SECURITY MODULES            Abstract In a method of controlling the operation of a security module, wherein firmware controlling the operation of the security module (10) is stored in a program memory (40), new firmware may be loaded into the module (10).  An authentication key (KA) is encrypted using a key storage key (KSK) stored in a resettable shift register (54) in the security module and the encrypted authentication key is stored in a secure memory (36).  A firmware authentication value FAV is calculated, using the authentication key (KA), externally of the security module (10), for the new firmware, and the new firmware, together with FAV is loaded into a data memory (38) in the security module (10).  A processor (30) in the security module (10) recalculates the firmware authentication value using the stored authentication key (KA) and compares the recalculated value with the loaded value FAV.  If a correct comparison is achieved, the new firmware is transferred into the program memory (40).  Otherwise, a reject status signal is issued and the firmware in the data memory (38) is erased.
Patent CA-1306147-C (CA)
Title: Ceramic/metal composite material
Inventor: NGUYEN THINH
IPC: C23C26/00
Filed: 1988-09-01
Granted: 1992-08-11
Abstract: A CERAMIC/METAL COMPOSITE MATERIAL     ABSTRACT     A ceramic/metal composite material comprises a surface ceramic coating comprising an oxidised alloy of copper stabilized by being in solid solution with nickel oxide or manganese oxide on a substrate which is an oxidation resistant alloy essentially devoid of copper or any metal which oxidises more readity than copper. The composite is made by oxidising a copper-based alloy on a substrate and simultaneously oxidising the substrate surface to form an oxygen-barrier interface, for example a chromium oxide layer formed on an alloy of chromium with nickel, iron and/or cobalt. The composite may be used as anode substrate for a cerium oxyfluoride coating used in aluminum electrowinning.
Patent CA-1307985-C (CA)
Title: Dispensing apparatus for metered quantities of pressurised fluid
Inventor: HOWLETT DAVID J
IPC: B65D83/14
Filed: 1988-09-07
Granted: 1992-09-29
Abstract: ABSTRACT:       DISPENSING APPARATUS FOR METERED QUANTITIES        OF PRESSURISED FLUID.         A dispensing apparatus comprises a pressurised dispensing container (3), a housing (2) for the container defining a bore, the container having a body (50) which is axially slidable in the bore, the container having a collapsible metering valve (8) located at a first end (6) of the body for dispensing metered quantities of fluid and actuated by axial depression of a valve stem (9) defining a dispensing flowpath, a valve actuator (11) fixedly connected to the housing at a corresponding first end (7) thereof and defining a further dispensing flowpath for product fluid dispensed through the stem, and trigger means (30) operable to urge the container body axially towards the first end of the housing such that the valve stem is depressed by relative movement together of the valve and actuator and thereby dispensing a metered quantity of fluid, wherein the container body defines a chamber (4) and the container includes means (5) dividing the chamber into a product fluid reservoir (25) communicating with the valve and a propellant fluid reservoir (26), the dividing means being movable such that propellant pressure is applied to the product fluid without mixing of the respective fluids.   The apparatus is suitable for the nasal administration of insulin.
Patent CA-1316223-C (CA)
Title: Method for measuring total body cell mass and total extracellular mass by bioelectrical resistance and reactance
Inventor: SHIZGAL HARRY
IPC: A61B5/05
Filed: 1988-09-30
Granted: 1993-04-13
Abstract: A METHOD FOR MEASURING TOTAL BODY CELL MASS AND TOTAL EXTRACELLULAR MASS BY BIOELECTRICAL RESISTANCE AND REACTANCE                         ABSTRACT A method for measuring total body cell mass, total body extracellular mass, total exchangeable potassium and total exchangeable sodium of a subject by using bioelectrical resistance and reactance.  The method includes the steps of connecting electrodes attached to an electrical impedance analyzer to the subject followed by introducing a high frequency, low amperage current through the electrodes into the body of the subject.  The bioelectrical resistance and reactance of the subject are then measured by the impedance analyzer.  Finally, the total body cell mass, total extracellular mass, total exchangeable potassium and the total exchangeable sodium of the subject are determined by applying the measured resistance and reactance to equations derived from multiple linear regression analysis of total body resistance and reactance of a selected group of subjects.
Patent CA-1327135-C (CA)
Title: Melanin hydrophilic contact lenses
Inventor: GALLAS JAMES M
IPC: G02C7/10
Filed: 1988-10-03
Granted: 1994-02-22
Abstract: ABSTRACT OF THE DISCLOSURE      A hydrophilic contact lens is disclosed incorp-orating melanin that protects the eye from harmful radiation and superoxide.
Patent CA-1304455-C (CA)
Title: Adaptive equalizer included in the receiver for a data transmission system
Inventor: HULTH MARIA T V
IPC: H04L25/03
Filed: 1988-10-21
Granted: 1992-06-30
Abstract: ABSTRACT OF DISCLOSURE.   An adaptive equalizer is included in a receiver in a data transmission system. The equalizer is primarily intended for equalizing incoming, sampled signals, which are recoded on the transmission side of the system according to a quaternary code, e.g. a so-called "2BlQ" code. Already known equalizers contain two digital filters (F1, F2) and a decision circuit (B). One filter (F1)smooths out the precursors and the other (F2) the postcursors. According to the invention, the first filter (F1) comprises a digital filter with only one tap for eliminating the dominant precursor (h-1).
Patent CA-1328747-C (CA)
Title: Process and a device for carrying out measurements at  a foaming liquid
Inventor: HOEFELMAYR TILMAN
IPC: G01N9/36
Filed: 1988-11-04
Granted: 1994-04-26
Abstract: ABSTRACT OF THE DISCLOSURE            It is difficult to determine the quantity or the flow quantity of the foaming liquid by means of a volume measurement in foaming liquids. Now a process and a device are indicated with which the specific density of the liquid/air mixture can at first be determined at different height levels and processes and devices are described with which the total amount of liquid or the flow quantity of the liquid, in particular of milk can be measured by means of these measurements.
Patent CA-1302526-C (CA)
Title: Wideband (dc-50 ghz) mmic fet variable matched attenuator
Inventor: KONDOH HIROSHI
IPC: H03H11/24
Filed: 1989-01-10
Granted: 1992-06-02
Abstract: WIDEBAND (DC-50 GHz) MMIC FET VARIABLE MATCHED ATTENUATOR             Abstract of the Disclosure A FET variable absorptive attenuator utilizes FETs as variable resistors controlled by voltages  applied to their gate terminals, the FETs preferably being arranged in  a  T  configuration  with  resistors  connected  in parallel with two series FETs, as well as a shunt FET in the form  of  a  distributed  shunt  FET.    One  control voltage adjusts the resistances of the series FETs, and another controls the resistance of the distributed shunt FET.  A proper combination of the two control voltages yields  a  desired  level  of  attenuation  with  optimum input/output impedance matching.   The resistors allow the series FETs to be biased well below their pinch-off voltages to minimize the parasitic capacitances of the series  FETs at  relatively high attenuation settings, improving the isolation for high attenuation settings at relatively  high  frequencies  and  also  enabling  the attenuator to function as a switch.  They also improve the  power-handling  capability  at  high  attenuation settings.    The  distributed  shunt  FET  is  split  into several  cells  interconnected  by  inductive  elements, providing a low insertion loss at maximum attenuation, as well as decreasing the parasitic capacitance of the shunt FET.   The effects of this lower capacitance at relatively  low  attenuation  settings  can  be  more effectively  counteracted  by  the  inductive  elements, extending the dynamic range of attenuation at relatively high  frequencies.    Also,  the  distributed  shunt  FET interconnected by the inductive elements compensates for the  parasitic  capacitances  of  the  series  FETs  at relatively  high  attenuation  settings,  which  yields increased  attenuation  with  increasing  frequency.
Patent CA-1336122-C (CA)
Inventor: MARKS MORTIMER
IPC: B32B17/10
Filed: 1989-02-03
Granted: 1995-07-04
Abstract: Apparatus  and  a  method  for  adhering  a  flexible  soft polarizing film to a curved surface,  such as the convex surface  of  a  prescription  eyeglass  to  be made  into  a polariizing lens is disclosed.  The method involves glass-casting,  and  preformation  of  the  film  in  a  manner calculated to have a minimum hardening/drying effect.  Air is excluded during lamination without the need for a vacuum and the attendant complications.
Patent CA-1340428-C (CA)
Title: Process for the preparation and recovery of oxydiphthalic anhydrides
Inventor: MOLINARO JOHN R
IPC: C07B61/00
Filed: 1989-02-06
Granted: 1999-03-09
Abstract: Oxydiphthalic anhydrides of the formula   are prepared by reacting a halophthalic anhydride with potassium carbonate in:      (1)  a solvent-free reaction medium wherein the molar ratio of halophthalic anhydride:potassium carbonate is greater than 2:1; or (2)  a high boiling solvent which improves the mixing of the components, and aids in subsequent purification of the product.  The molar ratio of halophthalic anhydride to potassium carbonate is about 1.5:1 or greater. The oxydiphthalic anhydride can be purified by filtering or centrifuging a hot solution of the oxydiphthalic anhydride in a high boiling solvent to remove impurities, followed by cooling the solution to precipitate the oxydiphthalic anhydride, which can be removed from the solution by filtration or centrifuging.
Patent CA-1314182-C (CA)
Inventor: HARRIGILL WILLIAM T
IPC: F23M9/06
Filed: 1989-03-13
Granted: 1993-03-09
Abstract: CONDENSING FURNACE                Abstract of the Disclosure A compact, high efficiency condensing furnace includes a combustion chamber and a pair of radiators.  The temperature of the combustion gases is reduced in one of the radiators to the point at which combustion products condense, thereby extracting the latent heat of vaporization from these combustion products.  Each of the radiators has an inlet and an outlet and a baffle between the inlet and outlet to prevent combustion gases from passing directly from the inlet to the outlet.  Additional turbulence-providing baffles can be provided within the radiators if desired.  A combustion air inlet pipe extends through a recess in the bottom of each radiator to the combustion chamber, and a gas burner tube extends generally concentrically within the combustion air inlet pipe to provide a gas flame within the combustion chamber.          A flame spreader plate directs the flame toward the bottom of the combustion chamber.
Patent CA-1337461-C (CA)
Inventor: NADER WERNER
IPC: C12Q1/04
Filed: 1989-03-23
Granted: 1995-10-31
Abstract: The present invention provides a process for the quantification of methane gas bacteria and especially for monitoring the methane gas formation capacity of reactors containing methanogenic bacterial, wherein a representative sample of a medium containing the methane gas bacteria is subjected for at most one second to a brief irradiation by light with a wavelngth of 395 to 440 nm and the fluorescence thereby excited is deter-mined by flow cytometry.
Patent CA-1340884-C (CA)
Inventor: BOETTCHER ANDREAS
IPC: C08G18/00
Filed: 1989-06-12
Granted: 2000-01-25
Abstract: The ethylenically unsaturated organic compounds are of the general formula (see above formula) where R is alkyl, aryl or a radical R1, and R1 is a radical (see above formula) where R2 to R6 are each H, alkyl, OH, Oalkyl, SH, Salkyl, halogen, N(alkyl)2 or N(alkyl)(aryl), and not less than one but not more than three of the radicals R2 to R6 are each a radical (see above formula) where X is alkylene or oxaalkylene, each of 2 to 10 carbon atoms, and Y is H or CH3.        These compounds have particularly high photochemical reactivity in the medium-wavelength to relatively long-wavelength UV range.
Patent CA-1325434-C (CA)
Title: Preparation of a dimethyltetralin
Inventor: SIKKENGA DAVID L
IPC: C07C5/393
Filed: 1989-06-13
Granted: 1993-12-21
Abstract: PREPARATION OF A DIMETHYLTETRALIN                           ABSTRACT A method for preparing one or more specific dime-thyltetralins from either 5-(o-, m-, or p-tolyl) pent-1-or -2-ene or 5-phenyl-hex-1- or -2-ene, and optionally for preparing one or more specific dimethylnaphthalenes from the aforesaid dimethyltetralins is disclosed.
Patent CA-1331841-C (CA)
Title: Method for preparing powder metallurgical sintered product
Inventor: KAWANO MASAKI
IPC: B22F1/052
Filed: 1989-06-21
Granted: 1994-09-06
Abstract: ABSTRACT OF DISCLOSURE It is disclosed a method for preparing a large-sized powder metallurgical sintered product having a superior characteristic by charging mixtures of three types of metallic powder composed of coarse particles, middle particles and fine particles into the molding die while vibrating it, heating the charged material together with the molding die, sintering them, and infiltrating metal of low melting point into the sintered body.  According to this method, it is possible to get a large-sized sintered body having a superior strength and surface smoothness or a sintered body prohibiting any cracks or slits by arranging the proper particle size.
Patent CA-1334100-C (CA)
Title: Benzocycloheptene compositions, process for their preparation thereof and pharmaceutical compositions holding same
Inventor: WIERZBICKI MICHEL
IPC: C07C229/14
Filed: 1989-06-29
Granted: 1995-01-24
Abstract: New benzocycloheptene derivatives of general formula: 
<IMAGE>
 in which: - X is hydrogen, C1-C5 alkyl, cyano or hydroxyl, and - X' is: hydroxyl, a radical OR (R being acyl or optionally substituted C1-C5 alkyl), a radical 
<IMAGE>
 [n being zero, one or two, each of R1 and R2, which are identical or different, being: hydrogen, optionally substituted C1-C5 alkyl, C2-C5 alkenyl or alkynyl, or acyl; or R1 and R2 together with the nitrogen atom to which they are bonded denote either: 
<IMAGE>
 Ra being hydrogen or C1-C5 alkyl and Rb: hydrogen, C1-C5 alkyl, phenyl or phenylalkyl, . or a penta- or hexagonal heterocyclic radical optionally including another heteroatom]; or -X and X' together denote =N-R3 [R3 being optionally substituted C1-C5 alkyl] in racemic form and the corresponding enantiomers. 
<??>These new derivatives and their physiologically acceptable salts can be employed in therapeutics, especially in the treatment of metabolic disorders such as diabetes, obesities and their complications.
Patent CA-1332895-C (CA)
Inventor: BURCH ROBERT R
IPC: C23C18/18
Filed: 1989-07-07
Granted: 1994-11-08
Abstract: A method is disclosed for metallizing polymers comprising generating anionic sites on the structures, contacting same with the cation of the metal and then reducing the metal cation to metal at the anionic sites or treating the metal cations to form a semiconductor.  The metallized polymers are useful as electrical conductors or semiconductors.