baber/WOPTO huggingface dataset:
Patent CA-2072437-C (CA)
Inventor: CHIU BERNARD
IPC: F24F6/04
Filed: 1992-06-26
Granted: 2001-12-04
Abstract: A humidifier including a base defining a reservoir adapted to retain a liquid volume; the base having an open top and a horizontal cross section including a substantially rectangular portion, and a substantially circular portion intersecting and projecting into the rectangular portion; and the base including a substantially circular sidewall forming the circular portion, a substantially rectilinear endwall, a first substantially rectilinear sidewall extending between the circular sidewall and one end of the endwall, and a second substantially rectilinear sidewall extending between the circular sidewall and an opposite end of the endwall; the first sidewall, the second sidewall and the endwall forming the rectangular portion. The humidifier also includes an inlet wall defining an air inlet; a blower assembly demountably supported by the base and covering the open top; the blower assembly comprising an upper wall defining an air outlet disposed above the circular portion, a fan blade disposed between the circular portion and the air outlet, and an electrical motor coupled to the fan blade; and a wick retained by the base in the rectangular portion and comprising a source portion disposed in the reservoir and an evaporative portion disposed thereabove and between the air inlet and the fan blade, the wick adapted to provide liquid flow by capillary action from the source portion to the evaporative portion.
Patent CA-2073405-C (CA)
Title: Backlight for liquid crystal devices
Inventor: KALMANASH MICHAEL H
IPC: G02B6/00
Filed: 1992-07-09
Granted: 2002-06-25
Abstract: A backlight system for liquid crystal device display is equipped with a dual lighting system for day viewing and compatible with night vision systems. The day lighting system uses conventional fluorescent or incandescent lamps for full color display during daytime use. The night lighting system uses a light source which is either filtered to remove infrared and near infrared wavelengths or which is chosen from a class of sources which does not emit such wavelengths. The day lighting system is disabled while the night system is in use.
Patent CA-2079946-C (CA)
Title: Non-azide gas generant formulations
Inventor: LUND GARY K
IPC: C06D5/00
Filed: 1992-10-06
Granted: 1993-11-30
Abstract: NON-AZIDE GAS GENERANT FORMULATIONS     ABSTRACT      Gas generating compositions or propellants are provided which comprise a non-azide fuel which is a transition metal complex of an aminoarazole. Preferred transition metal complexes are zinc and copper complexes of 5-aminotetrazole and 3-amino-1,2,4-triazole, with the zinc complexes most preferred.  The propellant compositions also include a conventional oxidizer, such as potassium nitrate or strontium nitrate.  These compositions are useful for generating a nitrogen-containing gas for a variety of applications, especially for inflating air bags in automotive restraint systems, as well as other inflatable devices.                            - ??
Patent CA-2081170-C (CA)
Title: Fluidized bed reaction system for steam/hydrocarbon gas reforming to produce hydrogen
Inventor: ADRIS ALAA-ELDIN MOUSTAFA
IPC: B01J19/24
Filed: 1992-10-22
Granted: 2002-12-24
Abstract: Hydrogen gas is generated in a fluidized bed reactor by reacting gases namely steam and a hydrocarbon gas such as methane or natural gas in a fluidized bed of particulate catalytic material. The catalytic material is fluidized by injecting the mixture of the reacting gases at the bottom of the bed.  Hydrogen generated within the bed is removed via a selectively permeable membrane that extends through the bed and through a freeboard area above the bed. The reaction is endothermic and therefore heat to maintain the bed at the desired temperature is added as required. preferably a separator separates particulate catalytic material entrained in the gases in the freeboard area and delivers the particulate material separated from the gas back into the bed.
Patent CA-2084940-C (CA)
Title: Reinforced hollow upper control arm for vehicle suspension system
Inventor: VRANA JOHN J
IPC: F16S1/10
Filed: 1991-12-09
Granted: 1998-12-08
Abstract: An upper control arm for a vehicle suspension system having a modulus section of hollow construction for reduced weight.  The modulus section of the control arm is of a stamped and welded construction thereby eliminating material weight while reducing the cost of manufacturing.  The modulus section has a substantially triangular configuration with a reinforced rim flange along the high compression stress area of the control arm elbow.   The reinforced rim flange improves the strength of the control arm without sacrificing the weight reduction provided by the hollow construction.
Patent CA-2085261-C (CA)
Title: Mailing machine including printing drum control system
Inventor: ECKERT ALTON B JR
IPC: G07B17/00
Filed: 1992-12-14
Granted: 1998-07-14
Abstract: A mailing machine base adapted to have a postage meter mounted  thereon,  wherein  the  meter  includes  a  postage printing drum having a home position, the base comprising, structure for moving the drum, a d.c. motor for driving the drum moving structure,  a microprocessor,  a power  switch connected  between  the  d.c.  motor  and microprocessor,  a comparator connected between the microprocessor and d.c. motor for receiving therefrom a signal corresponding to the back e.m.f.  voltage  of the  d.c.  motor and providing  a comparison   signal   to   the   microprocessor,   and   the microprocessor programmed for, providing a reference voltage signal for the comparator corresponding to a desired hack e.m.f.  voltage for causing the d.c.  motor to drive the postage  printing  drum  at  a  desired  constant  velocity, energizing the power switch with a first signal for causing the d.c. motor to accelerate the drum at a substantially constant rate to substantially the desired constant velocity from the home position thereof during a first predetermined time  interval,  determining  whether  the  back  e.m.f.  is greater than the reference voltage,  energizing the power switch with the first signal for a second predetermined time interval if the back e.m.f. voltage is not greater than the reference voltage, and energizing the power switch with a second signal for a third predetermined time interval if the back e.m.f. voltage is greater than the reference voltage and delaying energizing with the second signal if the back e.m.f. voltage is not greater than the reference voltage, thereby  causing the d.c. motor to continue driving the drum at substantially the desired constant velocity.
Patent CA-2085344-C (CA)
Inventor: GARZA FLORES JOSUE
IPC: A61K9/16
Filed: 1991-06-12
Granted: 1998-06-30
Abstract: Formulations de produits médicamenteux à libération programmée destinées à être administrées par voie parentérale, comprenant des microsphères solides calibrées (de 1 à 300 microns) de substances actives. Sous cette forme, les stéroïdes (par exemple la progestérone et le 17-bêta-oestradiol) peuvent constituer des contraceptifs injectables, et l'action des médicaments, dont l'effet peut durer environ 24 heures, peut être réglée et prolongée.
Patent CA-2089270-C (CA)
Title: Rotary stacker
Inventor: RUEHL KENNETH LEONARD
IPC: B65H39/115
Filed: 1991-08-30
Granted: 1998-04-07
Abstract: A stacking device for forming stacks of articles of predetermined count, using a stacking wheel (12) having a multiplicity of uniformly spaced peripheral slots (24).  The slots are adapted to receive articles (16) sequentially at a loading station (10) and carry them to an unloading station (14) having a plurality of stacking sites.  The slots are divided into two or more sets (S, L) the slots in each set being equal in number to the predetermined count and adapted to deliver the articles therein to the unloading station with the leading edges of the articles at a predetermined radial offset from the axis (28) of the stacking wheel.  Each set of slots is associated with the stacking of articles at a specific stacking site (64) and the slots of a set associated with one stacking site provide a different radial offset than those of a set associated with another stacking site.  The stacking sites are arranged, in the downstream direction, in order of diminishing radial offset of their associated sets of slots.  Separation of the stacks is effected by having stripping fingers (58, 60) for each stacking site act at the appropriate radial offset.
Patent CA-2089480-C (CA)
Inventor: BLACK GREGORY R
IPC: H03L7/099
Filed: 1992-06-08
Granted: 1998-12-08
Abstract: A voltage controlled oscillator and buffer amplifier circuit (211) is disclosed. The circuit is in a stacked configuration, whereby, the current from the power supply (361) is used by the buffer amplifier circuit and reused by the VCO circuit. The VCO circuit includes two transistors (333, 325). The transistors are set-up in a mirrored configuration, so that one of the transistors (325) controls the bias current in the other transistor (333). Both of the transistors are integrated into a semiconductor circuit die (365), thus, matching the thermal characteristics of the transistors (333, 325) and improving control of the bias current. The die (365) is bonded to a ceramic substrate (601). The substrate (601) has connectivity paths for connecting components in the circuit die to components external to the circuit die. Some of the connectivity paths are made of a material and length to form passive circuit elements.
Patent CA-2093018-C (CA)
Title: Self-cleaning mechanism for oxidation chamber
Inventor: HAGER DONALD G
IPC: A62D3/00
Filed: 1992-07-31
Granted: 1993-02-03
Abstract: An oxidation chamber used for irradiating an incoming liquid containing unwanted organic pollutants has a structure that facilitates self-cleaning at intervals.  A modular construction is used, and three basic types of modules (12, 14, and 16) are employed. One of the modules (16) is a TEFLON ? lined carbon steel pipe through which a shuttling scraper is forced at intervals. The shuttling scraper includes an annular wiper (60) that simultaneously cleans the inside surface of the surrounding tubular module (16) as well as the ouside surface of enclosed quartz tube (36). The annular wiper sealingly engages the quartz tube and the tubular module so that it is driven like a piston by the full pressure of the liquid. When the shuttling scraper has reached the end of the tubular module, it parks itself in a position that causes only minimal pressure drop.  This automatic self-cleaning feature of the oxidation chamber overcomes one of the most serious problems encountered with this type of equipment, namely the tendency of a slime to form on the UV lamps and on the normally reflective walls of the chamber, thereby reducing the amount of UV radiation reaching  the liquid. When this occurred in prior art apparatus, it was necessary to shutdown the operation and to dismantle the oxidation chamber to clean the lamps and chamber walls.
Patent CA-2095644-C (CA)
Title: Modular low air loss patient support system and methods for automatic patient turning and pressure point relief
Inventor: THOMAS JAMES MILTON CHERRY
IPC: A61G7/00
Filed: 1990-01-19
Granted: 1997-08-05
Abstract: A low air loss patient support system includes a plurality of identical multi-chambered inflatable sacks. A restrictive flow hole connects two adjacent chambers disposed predominately to one side of the centerline of the sack, and each side is separately pressurizable under the control of a microprocessor and a plurality of pressure control valves with pressure transducers and a plurality of flow diverter valves for switching between different modes of configuring the manner in which the sacks are pressurized.  The system includes a modular manifold for mounting the pressure control valves, and a modular support member for mounting the sacks via quick-disconnect couplings and having air flow channels defined therethrough.  The support system effects a method of rotating or tilting the patient that depres-surizes one side of the sacks while increasing the pressurization of the opposite side of the sacks.  The end chamber of the depressurizing side of the sacks remains inflated while the intermediate chamber of the depressurizing side of the sacks becomes progressively deflated during depressurization to permit the end chamber to restrain the patient from sliding off the sacks during tilting.  The support system permits practicing the method of relieving pressure points between the patient and the sacks while elevating the head and chest of the patient by reconfiguring the diverter valves to connect alternating sacks at the same pressure and periodically decreasing the pressure in one group of sacks while increasing the pressure in the other group of sacks to alternately relieve the pressure of the weight of the patient between the two different groups of sacks depending upon which group is depres-surizing and which group is being increased in pressure.
Patent CA-2095855-C (CA)
Title: Mycobacterium as adjuvant for antigens
Inventor: ROOK GRAHAM A W
IPC: A61P31/04
Filed: 1991-11-08
Granted: 2003-04-29
Abstract: Immunoregulatory material from a mycobacterium other than M. tuberculosis, especially killed cells of M. vaccae, is an ad-vantageous adjuvant for administration with antigens (including allergens).
Patent CA-2100295-C (CA)
Inventor: SANDER EUGENE H
IPC: A61K47/46
Filed: 1993-07-09
Granted: 2003-09-23
Abstract: A rapidly dispersible powder having use as a laxative and fiber supplement, comprising psyllium particles coated with gum arabic. The present invention also includes a method for making the powder that includes providing an effective quantity of gum arabic to a fluidized bed having the psyllium particles to make the rapidly dispersible powder. The present invention further includes a method for making a constipation treatment and a treatment for fiber supplementation.
Patent CA-2103070-C (CA)
Title: Fire fighting equipment
Inventor: SUNDHOLM GORAN
IPC: A62C31/02
Filed: 1992-05-20
Granted: 2003-07-22
Abstract: The object of the invention is to provide a new fire fighting equipment, which is more effective than prior art equipments. The fire fighting equipment of the invention comprises a spray head with a number of nozzles, each nozzle comprising a nozzle socket (24) with a mouthpiece (20) and a whiner (22) arranged to bear against it. The whirler (22) is supported in a housing (2) of the spray head in such a manner that the whiner is set in rotation by the liquid pressure.
Patent CA-2105852-C (CA)
Title: Method and apparatus for symbol recognition using multidimensional preprocessing
Inventor: LECUN YANN ANDRE
IPC: G06V30/10
Filed: 1993-09-09
Granted: 1999-05-04
Abstract: Data samples describing a plurality of micro-segments that compose a symbol to be recognized are received from a device (10) such as an electronic pad. A preprocessor (12) maps the micro-segments into cells of an array that has several feature dimemsions. The preprocessor assigns values to the cells based on the length of a micro-segment associated with the cell, and how well the features of the associated micro-segment correspond to the feature label of the cell. The cell values are used as inputs to a neural network (14) that identifies the symbol. In one embodiment, recognizing symbols from large groups of symbols is facilitated by using a plurality of neural networks. Each neural network is trained to recognise symbols from a different subgroup of symbols, and each neural network can determine whether the symbol belongs to its subgroup. FIG. 1.
Patent CA-2105930-C (CA)
Inventor: HAILEY CHARLES D
IPC: E21B31/113
Filed: 1993-09-10
Granted: 1996-11-05
Abstract: A hydraulic jar device for use in through-tubing drilling and fishing operations which consists of an elongate  tube  having  an  upper  hammer  sub,  a  kelly cylinder and a hydraulic cylinder with central restrictor secured therebelow.  A lower sub connects to the bottom end of the hydraulic cylinder.  The sliding interior components are an upper mandrel secured to an anvil sub which, in turn, is fastened to an axial plunger, all of which are slidable down within the elongate tube.   A metering ring retained on the plunger interacts with the central restrictor of the hydraulic cylinder to control force effected up and down jars that occur when the mandrel strikes the hammer sub on the down stroke, and when the anvil sub strikes the hammer sub bottom on the up stroke.
Patent CA-2107440-C (CA)
Title: Cathode material and secondary battery using the same
Inventor: OKADA SHIGETO
IPC: H01M10/05
Filed: 1993-09-30
Granted: 1998-06-23
Abstract: A cathode material made of anhydrous ferric sulfate with a hexagonal crystal structure is presented for use in a secondary battery which generates a stable open-circuit-voltage of about 3.6 volts and offers a recharge cycling capacity of over 100 times.  The cathode material is obtained by heating hydrous iron sulfate material in a temperature range between 250 and 600 °C to remove the water of crystallization.  The secondary battery made with this cathode material provides a long-service life and a stable output voltage economically, because the starting material, iron sulfate, is abundantly available at relatively low cost.
Patent CA-2108123-C (CA)
Inventor: BALL ROBERT J
IPC: B23F23/12
Filed: 1991-10-21
Granted: 1996-12-17
Abstract: Disclosed herein is a rotary cutter for cutting gears, couplings and the like. The rotary cutter comprises a cutter head (12) having an axis of rotation (12), a centering disc (24) located adjacent to a side (6) of the cutter head (12) and concentric with the axis (12) and a cutter ring (40), centered by the centering disc (24), on the cutter head (2). The centering disc (24) has a tapered outer edge surface (28) that abuts against and is complementary with the tapered surface (50) of the bore of the cutter ring (40). The cutter ring (40) is centered once the surfaces are complementary. Once centered, the cutter ring (40) is secured to the cutter head (2). The rotary cutter of the present invention enables the cutter ring (40) to rotate true about the axis (12) of a machine tool.
Patent CA-2110271-C (CA)
Title: Power transmission chain
Inventor: BLASE GUENTER
IPC: F16G13/16
Filed: 1993-03-30
Granted: 1997-10-07
Abstract: In a power transmission chain, each link of which displays two side walls and a stabilising element joining these at their lower longitudinal edges, as well as a cover which can be snapped onto the upper longitudinal edges, where consecutive links are joined in pivoting fashion and the covers can be fixed on the upper longitudinal edges of the side walls in a detachable fashion,  the covers are connected via flat, flexible connecting straps located in sliding fashion in corresponding sliding chambers in the covers. A power transmission chain of this kind can be manufactured with very small dimensions, has adequate assembly strength and can be handled conveniently and safely.
Patent CA-2111851-C (CA)
Title: (s)(+)-2-ethoxy-4-[n-{1-(2-piperidino-phenyl)-3-methyl-1-butyl]aminocarbonylmethyl]benzoic acid
Inventor: GRELL WOLFGANG
IPC: C07D295/135
Filed: 1991-06-21
Granted: 2002-02-26
Abstract: The present application relates to the new (S) (+)-2-ethoxy-4-[N-[1-(2-piperidino-phenyl)-3-methyl-1-butyl]-aminocarbonylmethyl]-benzoic acid and the salts thereof, which have valuable pharmacological properties, namely an effect on the intermediate metabolism, but particularly the effect of lowering blood sugar.      The (S)-enantiomer has the general formula: (see formula I) wherein W' represents a carboxy group or an alkoxycarbonyl group having a total of 2 to 5 carbon atoms, wherein the alkyl moiety of the alkoxy group may be substituted by a phenyl group.      The invention also relates to the new intermediate products of formulae I, III, IV, and VII and the addition salts thereof. The intermediates are compound of general formulae: (see formula II) (see formulas III,IV, V) A represents a group which can be converted into a carboxy group by hydrolysis, thermolysis or hydrogenolysis, W' represents a carboxy group or an alkoxycarbonyl group having a total of 2 to 5 carbon atoms, wherein the alkyl moiety of the alkoxy group may be substituted by a phenyl group, and W" represents a group which may be converted by oxidation into a carboxy group, and the addition salts thereof.        The new compounds can be produced using methods which are known for analogous compounds.
Patent CA-2118583-C (CA)
Title: Printing plate magazine for a printing machine and printing plate exchange process
Inventor: BEISEL HERMANN
IPC: B41F27/12
Filed: 1992-09-07
Granted: 1998-09-15
Abstract: A device designed as a magazine is disclosed for carrying away and/or supplying printing plates from and to a plate cylinder of a printing: machine, in particular to ensure the automatic exchange of printi ng plates with. a plate removing and a plate supplying arrangement. At least one cartridge (7, 8) for the printing plates (9, 10) is removably associated with the magazine (4). A corresponding process is also disclosed.
Patent CA-2119898-C (CA)
Inventor: BOWSER JOHN
IPC: B01D61/36
Filed: 1992-10-21
Granted: 1997-12-23
Abstract: This invention utilizes the partial pressure difference of alcohol in two areas separated by a microporous membrane wherein one area contains a solution of alcohol and at least one other liquid and the ot her area contains predominantly only the other liquid to cause the alcohol to migrate through the membrane.
Patent CA-2128746-C (CA)
Inventor: TRAN NANG TRI
IPC: G21K4/00
Filed: 1994-07-25
Granted: 2000-02-08
Abstract: A process for forming a phosphor comprising the steps of: (a) providing a substrate for deposition and growth of an alkali halide phosphor, (b) forming a patterned surface on the substrate comprising a plurality of mesas, each of the mesas having an incline, a decline, and a horizontal surface, the mesas being separated from one another by horizontal segments of the substrate and wherein: (i) the ratio of the height of each of the mesas to the width of the horizontal segments is in the range of about 1:20 to 1:4; (ii) the ratio of the width of each of the mesas to the width of the horizontal segments is in the ratio of about 1:30 to 1:4; and (iii) the angles of incline and decline of each of the mesas are between about 5° to 85°; and (c) depositing an alkali halide phosphor on the patterned surface of the substrate of step (b), thereby forming cracks, in the deposited phosphor, originating from the inclines and/or declines of each of the mesas.