baber/WOPTO huggingface dataset:
Patent CA-2081835-A1 (CA)
Title: Removal of Mercury from Waste Streams
Inventor: ROBINSON JAMES M
IPC: C02F1/42
Filed: 1992-10-30
Abstract: Thimerosal is removed from aqueous effluent streams from vaccine production to provide an environmentally-acceptable effluent stream. The thimerosal first is converted to ionic form by chlorination, the resulting solution is dechlorinated to remove dissolved unreacted chlorine, and then the ionic mercury is removed by ion-exchange employing thiol groups. <IMAGE>
Patent CA-2082668-A1 (CA)
Title: Heterocyclic derivatives
Inventor: EDWARDS MARTIN P
IPC: C07D405/14
Filed: 1992-11-12
Abstract: ABSTRACT                          HETEROCYCLIC DERIVATIVES           The invention concerns pharmaceutically useful compounds of the formula I, in which R1, R2, R3, R4 and A1 have the various meanings defined herein, and their non-toxic salts, and pharmaceutical compositions containing them.  The novel compounds are of value in treating conditions such as hypertension and congestive heart failure. The invention further concerns processes for the manufacture of the novel compounds and the use of the compounds in medical treatment.
Patent CA-2083376-A1 (CA)
Title: Sanitary napkin having soft edges
Inventor: OSBORN THOMAS W III
IPC: A61F13/15
Filed: 1991-05-20
Abstract: A thin sanitary napkin (20) having a flexible border encircling the absorbent core is disclosed. The flexible border is formed by joining the backsheet (24) to the topsheet (22), either by crimping or heat sealing along a seam (34), outboard of the absorbant core (26). A soft flexible edge (51) along the back end of the sanitary napkin is provided by placing the seal or crimp inboard from the back edge of the flexible border so that non-bonded topsheet and/or backsheet materials exist between the backsheet/topsheet seam and the rear end edge of the flexible border. In an alternate embodiment, the topsheet/backsheet seam is located inboard of the entire peripheral edge (36) of the border (35) to provide a napkin having softer edges.
Patent CA-2083475-A1 (CA)
Title: Derivatives of ethanolamine, their preparation, and the pharmaceutical compositions containing them
Inventor: WIERZBICKI MICHEL
IPC: C07C233/51
Filed: 1992-11-20
Abstract: New ethanolamine benzoate derivatives, which can be used as medicaments and which correspond to the formula: 
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 in which R is as defined in the description, in the racemic and enantiomeric forms. 
<??>These new derivatives and their physiologically tolerable salts can be used in therapeutics, especially for the treatment of syndrome X, combining intolerance to glucose, hyperinsulinemia, dyslipemia and hypertension, and for the treatment of hypertension in insulin-resistant subjects or those having one or a number of metabolic abnormalities.
Patent CA-2084589-A1 (CA)
Title: Process for the purifying working-up of reaction media and/or wash media obtained during preparation of cellulose ethers
Inventor: WALLISCH HEINZ
IPC: C08B11/20
Filed: 1992-12-04
Abstract: ABSTRACT OF THE DISCLOSURE:               HOE 91/F 376 The invention relates to a process for the purifying working-up of liquid reaction media and/or wash media obtained during preparation of cellulose ethers, which are insoluble in hot water,  from cellulose, an alkali metal hydroxide and at least one etherifying agent in a medium containing water and if appropriate at least one organic solvent, by ultrafiltration of the media into a permeate and concentrate, which comprises carrying out the ultrafiltration of the reaction media and/or wash media at a temperature at or above the flocculation temperature of the cellulose ethers.
Patent CA-2084994-A1 (CA)
Title: Biodegradable polymeric compositions based on starch and thermoplastic polymers
Inventor: BASTIOLI CATIA
IPC: C08L75/04
Filed: 1992-05-04
Abstract: The biodegradable polymeric-compositions comprise a starch based component and a polymeric component comprising polymers of hydroxyacids or mixtures thereof with polymers deriving froth ethylenically unsaturated monomers, particularly po-lymers of ethylene-vinylalcohol or polyvinylalcohol.
Patent CA-2086564-A1 (CA)
Inventor: ISHIKAWA HIROAKI
IPC: G06F1/00
Filed: 1992-12-31
Abstract: In an electronic device which can be energized from one of a plurality of types of power sources, having an external power source connector for connection with an external power source, a power source identifying circuit identifies the power source from which the electronic device is energized, and a control circuit controls consumption of the power in accordance with the power source identified by the power source identifying means.  The identification of the power source is made in accordance with the voltage on the connector.  Additionally, the sum of the voltage on the connector and the voltage of the built-in battery may be used for the identification.
Patent CA-2088408-A1 (CA)
Inventor: BARSKI VICTOR
IPC: F23N5/00
Filed: 1993-01-29
Abstract: Procédé et dispositif de combustion du mélange stoechiométrique du gaz et de l'air P R É C I S Dans un procédé et dispositif de combustion du mélange stoechiométrique du gaz et de l'air, on sait que le système doit être équipé en analyseur de fumées qui est dispendieux et compliqué, surtout pour combustion proche de l'idéale, ou surplus de CO \A H ainsi que O est faible. Dans la présente invention le mélange stoechiométrique des gaz entre dans un brûleur pilot avant d'arrivée à l'entrée des brûleurs principaux et signaux de commande de qualité de combustion proviennent du brûleur pilot, comme fonction des déplacements de l'onde explosive stable, par l'intermédiaire d'un régulateur électronique et d'un servomoteur.
Patent CA-2090885-A1 (CA)
Title: Aqueous coating composition
Inventor: LEAR PETER
IPC: C08G18/08
Filed: 1993-03-03
Abstract: ABSTRACT         AQUEOUS COATING COMPOSITIONS            Coating composition for a polyolefine, particularly a polypropylene, substrate comprising an aqueous emulsion or solution of a polymer system comprising at least one polymer P which imparts polyolefine-adherability to the coating derived from the composition and which is a polymer derived from a monomer system comprising a defined level of a monomer bearing an optionally substituted 7,7-dimethyl norbornanyI group -particularly isobornyl acrylate.
Patent CA-2094241-A1 (CA)
Title: Surface feature mapping using high resolution c-scan ultrasonography
Inventor: GLENN WILLIAM E
IPC: G01S15/89
Filed: 1991-11-06
Abstract: An ultrasonic system and method for imaging a surface wherein a C-mode ultrasonic scan is performed over a fixed area of the surface and range gating is applied to that area to a given depth below the surface. For use of the system and method in fingerprint imaging, a live finger is placed upon a sensitive surface, the portion of the finger on the surface is scanned using the ultrasonic energy, and ultrasonic energy returned from the finger portion is received to capture an electronic image of the pattern of ridges and valleys of the fingerprint. The ultrasonic imaging system comprises a probe (102) for providing a directed output ultrasonic beam to scan the surface and to receive ultrasonic echos from the surface, a pulser-receiver (104), a signal processing circuit (108). The probe scans the surface along one direction, and then along another direction, the two directions preferably be-ing orthogonal.
Patent CA-2095124-A1 (CA)
Inventor: SAKURAI KAZUO
IPC: H04R1/10
Filed: 1992-08-27
Abstract: The present invention provides a head set capable of improving a sense of comfort when being put on, realizing an easier attaching and detaching operations, and minimizing a feeling of being tired even when used for a long time.      The head set comprises, an auricle insertion type earphone (1) including, an auricle insertion section (4) covered by a cover (3), a casing (5) incorporating an acous-tic converter and a cord (6), a supporting member (7) of a rod shape attached on a body (2) of the auricle insertion type earphone, and a microphone (8) arranged in a vicinity of a tip end of the supporting member (7). The microphone (8) is positioned adjacent to a person's mouth or adjacent to an upper portion of the person's cheek.
Patent CA-2096099-A1 (CA)
Inventor: FUJII TOSHIRO
IPC: F04B27/14
Filed: 1993-05-12
Abstract: A swash plate type refrigerant compressor having an axial cylinder block assembly having therein a double-headed piston operated compressing mechanism for compressing refrigerant gas introduced from an external air-conditioning system to a plurality of cylinder bores, the compressor further having a swash plate chamber capable of not only permitting a swash plate to rotate to thereby reciprocating the pistons but also receiving the refrigerant gas before compression, a rotary valve capable of controlling distribution of the refrigerant gas from the swash plate chamber to each of the cylinder bores, and a pair of taper roller bearings mounted in front and rear housings attached to the cylinder block assembly, and rotatably and stably supporting a drive shaft for mounting thereon the swash plate. The front and rear housings having only a discharge chamber for receiving the compressed refrigerant gas, respectively.
Patent CA-2096670-A1 (CA)
Title: Information processing system with printing function
Inventor: AGATA HIROAKI
IPC: B41J3/36
Filed: 1993-05-20
Abstract: INFORMATION PROCESSING SYSTEM WITH     PRINTING FUNCTION                           Abstract The invention provides an information processing system with a printing function in which it is easy to handle a printing medium such as paper or the like. The printing medium does not hinder the functions of a display apparatus, indicators and  the  operations  of  a  keyboard  and buttons  when  the printing medium  is  set,  and the printing medium can be printed without being bent. In general, such an information processing system with a printing function has  a  system body, with input means being disposed adjacent to that system body for inputting data. Printing means are disposed in the rear  of  the  system body  in which  a printing medium  is supplied from between the system body and the input means to the printing means.
Patent CA-2099368-A1 (CA)
Title: Shrouded propeller system for a sailboat
Inventor: HARRISON SERGE
IPC: B63H20/00
Filed: 1991-08-27
Abstract: 2099368 9203335 PCTABS00010 A propeller system for an outboard motor, comprising a revised propeller (9), a symmetrical Kort accelerating nozzle (6), and re-routed exhaust passages (B), (C), is described. This system permits modification of a standard outboard motor intended for use at high speed with a planing type hull to make it applicable at slow speed to a sailboat immersion type hull. The motor fuel consumption may also be improved.
Patent CA-2099654-A1 (CA)
Inventor: SUTHERLAND COLIN A
IPC: H01Q1/28
Filed: 1993-06-24
Abstract: An antenna pointing mechanism for a highly directional antenna which avoids the aforenoted problems.  The mechanism including the antenna are rendered substantially immune to bending and play-induced movements resulting from vibration or the like, making it highly useful for land based vehicles, ships, and particularly for aircraft.  It also provides the ability to point the antenna over elevational angles exceeding 180°, making it particularly useful for communication with satellites from aircraft.  The antenna pointing mechanism is comprised of a directional antenna having a central axis, first apparatus for supporting the antenna about a pitch axis which is orthogonal to the central axis and which passes through about the center of mass of the antenna, an electromagnetically transparent yoke surrounding the antenna for supporting the first apparatus, apparatus for rotatably retaining the yoke apparatus at opposite ends thereof at positions along a roll axis, first independent substantially electromagnetically transparent driving apparatus for driving the yoke to rotate about the pitch axis, and second independent substantially electromagnetically transparent driving apparatus for driving the antenna to rotate about the pitch axis.
Patent CA-2100223-A1 (CA)
Title: Grinding wheel assembly
Inventor: BOAZ PREMAKARAN T
IPC: B24D5/00
Filed: 1993-07-09
Abstract: ABSTRACT    A grinding wheel assembly comprises a grinding wheel, a flange for directing flow of coolant/lubricant against the grinding surface of the grinding wheel, and moans for securing the flange adjacent the grinding wheel.  The flange includes a circumferential trough formed at the periphery thereof for holding a fluid therein by centripetal force during rotation of the assembly and a plurality of apertures for admitting a flow of fluid therethrough to the circumferential trough.  Fluid overflows a weir on a wall of the circumferential trough and enters slots formed in the peripheral surface of the grinding wheel.
Patent CA-2101855-A1 (CA)
Title: Pipette
Inventor: SUOVANIEMI OSMO
IPC: B01L3/02
Filed: 1992-02-04
Abstract: A pipette, comprising: a cylinder (1) with liquid passage (3), a plunger (4), and a plunger operating means (5) for moving the plunger in the cylinder; said operating means comprising a body (6), a threaded rod (7), an operating member (8) cooperating by mediation of threads with said threaded rod, and a power means (9) for rotating the threaded rod and the operating member relative to each other for moving the plunger by mediation of the threaded rod and the operating member when the threaded rod and the operating member are rotated relative to each other with the aid of the power means; the thread of the threaded rod (7) or alternatively that of the operating member (8) being non-linear locally over a certain transition range.
Patent CA-2102709-A1 (CA)
Title: Support for a heart valve prosthesis
Inventor: RELIGA ZBIGNIEW
IPC: A61F2/24
Filed: 1992-05-08
Abstract: ABSTRACT OF THE DISCLOSURE      A heart valve prosthesis is formed from a support having a textile covering. The support is formed as a single piece and consists of flat, closed, preferably thermoplastic material which itself has an approximately hollow cylindrical or hollow conical shape.
Patent CA-2102909-A1 (CA)
Title: Magnetic tape cartridge for helical scan transports
Inventor: DODT WILLIAM C
IPC: G11B23/107
Filed: 1992-04-28
Abstract: The helical scan magnetic tape cartridge has substantially the same exterior dimensions as a conventional 3480-type magnetic tape cartridge but is implemented in the inverse configuration. The magnetic tape (503) is wound counterclockwise around the cartridge reel (502), with the recording surface of the magnetic tape (503) facing out. The magnetic tape (503) exits the cartridge housing (501) at the left corner of the front side (504) of the cartridge housing (501) (when viewed from the top). In addition, the right front corner (506) of the cartridge housing (501) may be angled to further distinguish the helical scan magnetic tape cartridge from the conventional 3480-type magnetic tape cartridge.
Patent CA-2103009-A1 (CA)
Title: Discharge Hopper
Inventor: JOUBERT ROBERT M
IPC: B61D7/30
Filed: 1993-11-12
Abstract: A discharge hopper rail car 10 comprises a hopper body 14 mounted on a chassis 12 which is itself supported on flanged wheels 20.          The body 14 includes a discharge opening in a lower part thereof and a door structure 16 pivotally mounted on the body 14 and displaceable between a closed condition in which the opening is closed by the door structure 16 and an opened condition to permit discharge of the contents of the body 14.  The door structure 16 forms a basin for collecting both liquids and fines leaking from the  opening when  the  door  structure  16  is  in  its  closed condition.
Patent CA-2104818-A1 (CA)
Title: Insulating units
Inventor: EVASON JOHN
IPC: C03C27/06
Filed: 1993-08-25
Abstract: A sealed insulating unit comprising two parallel opposed panes with a spacing and sealing system therebetween defining, with said panes, a sealed gas spaced between them, said spacing and sealing system comprising a spacer frame with a primary seal between each side of the spacer frame and the opposing pane face and a secondary seal extending between the panes outside the outer peripheral face of the spacer frame characterised in that each primary seal is greater than 0.4 mm thick on construction of the unit and comprises at least 7 grams of sealant material on each side of the spacer frame per metre of the spacer frame length.      There is also provided a method of producing a sealed insulating unit comprising providing a spacer frame of required size, applying primary sealant to each side face of the spacer frame, assembling the spacer frame with and between two opposed parallel panes so that the spacer frame with the panes defines a gas space therebetween, and, with a primary seal thickness of greater than 0.4 mm on each side of the spacer frame, applying a secondary sealant into a channel between the panes outside the outer peripheral face of the spacer frame and curing said secondary sealant in situ between the panes. There is further provided a spacer for a sealed insulating unit in which in the side walls of the spacer are defined elongate recesses, the dimensions of the recesses being selected such that sufficient primary sealant can be accomodated therein to provide in the sealed insulating unit opposed primary seals each at least 0.4 mm thick.
Patent CA-2105878-A1 (CA)
Inventor: SCOTT BENTLEY N
IPC: G01N22/04
Filed: 1992-04-09
Abstract: The concentration of one liquid, such as water, in another liquid, such as crude or refined oil, existing in a mixture which also includes entrained gas is carried out by an apparatus (Fig. 1, 10) which measures a change in a microwave oscillator (30} op-erating frequency and the difference between incident and transmitted power with respect to a measurement section of the appar-atus (10). Continuous monitoring (60) of the difference in incident versus transmitted power is carried out to detect the presence of gas and then selectively averaged peak values of the concentration of one liquid in another are determined to provide an accu-rate measurement (62) of the content of water in oil even with the presence of various amounts of entrained gas in the mixture.
Patent CA-2109259-A1 (CA)
Title: Prodrugs, their preparation and use as pharmaceuticals
Inventor: BOSSLET KLAUS
IPC: A61K47/48
Filed: 1993-10-26
Abstract: Glycosyl-spacer-drugs compounds (prodrugs), their preparation and their use as pharmaceuticals are described.
Patent CA-2110351-A1 (CA)
Inventor: AMBERG LINADEWI S
IPC: H04N1/333
Filed: 1993-11-30
Abstract: A fax gateway improves the efficiency of long-distance fax communications by simultaneously receiving a plurality of low-speed faxes, bundling them into a single fax for transmission to a common distribution, and transmitting the single fax as a high-speed fax to the destination. At the destination, the high-speed fax is received, unbundled into its constituent faxes, and the constituent faxes are distributed as low-speed faxes to a plurality of recipients.
Patent CA-2116134-A1 (CA)
Inventor: SHARP GORDON P
IPC: F24F7/007
Filed: 1992-08-17
Abstract: This invention relates to a fume hood controlling method and apparatus which reduces the amount of replacement air required to operate a fume hood by permitting the fume hood to operate at a relatively low face velocity in the absence of a containment affecting condition, but which is capable of detecting the occurrence of a containment affecting condition, such as the presence or movement of a user within a selected area of the face of the fume hood, and of increasing face velocity to a selected level in response to such detection. When the detected condition no longer exists, the control automatically returns the fume hood to the lower face velocity, preferably with a time delay. Maximum replacement air volume and minimum replacement air volume may also be controlled in response to such detection.
Patent CA-2116400-A1 (CA)
Inventor: KAIN JAMES M
IPC: B60N2/28
Filed: 1994-02-24
Abstract: A child carrier having a seat which may be attached and removed from a base. The base has a spring-loaded locking mechanism which automatically secures the seat in the base.      The seat has a spring-loaded release trigger extending from its head end. The trigger is integral with an elongated member which engages a connection to the locking mechanism in the base. The base and seat comprise an infant car seat.      The seat may be used as a car seat, a seat secured to a shopping cart, and as a stand-alone seat.
Patent CA-2117529-A1 (CA)
Title: Phenol formaldehyde steam pressing of waferboard
Inventor: LIM JAU T C
IPC: B27N3/08
Filed: 1993-02-25
Abstract: The present invention relates to a method of producing a waferboard by applying first a liquid phenol formaldehyde resin (12) to the surface of the wafers (10) then a powdered phenol formaldehyde resin (14) followed by forming a layup (16) and pressing at elevated temperature and pressure using steam pressing techniques (18) to consolidate the layup into a board and set the phenol formaldehyde adhesive.
Patent CA-2117796-A1 (CA)
Inventor: SRAIL RAYMOND C
IPC: H01F41/02
Filed: 1993-04-12
Abstract: A process and apparatus for permitting the magnetization of flexible hard magnetic materials in the form of sheets or strips, such as magnetic rubber, wherein opposing arrays (10) formed from alternating magnetic disks and flux conducting elements are used in sets of two with opposing polar moments such as to induce a magnetic flux in the gap between the disks. A  material to be magnetized is passed between the array sets (35) and consequently imprinted with magnetic poles. The magnetized properties of the material is enhanced by passing the material through a second set (38) of arrays which are axially offset with respect to the first set of arrays. This enhances the residual induction of the sample and significantly improves the pull strength of the material.
Patent CA-2120488-A1 (CA)
Title: Vacuum speaker
Inventor: LANGLEY ANDREW J
IPC: H04R1/28
Filed: 1991-10-02
Abstract: A closed box loudspeaker system (9) which has the back of the loudspeaker sealed by a small closed chamber containing a gas which acts like mechanical spring connected to the loudspeaker diaphragm (1). The system avoids the problems inherent in large back chambers by altering the static pressure in the back chamber. To counterbalance the differential pressures either a spring flexible diaphragm (2) or bellows (21) is employed.
Patent CA-2121488-A1 (CA)
Title: Novel process for the preparation of 4-methyl-5-(2-chloroethyl)-thiazole and analogues thereof
Inventor: PALOSI ENDRE
IPC: A61K31/00
Filed: 1992-10-30
Abstract: 2121488 9309107 PCTABScor01 The present invention relates to a process for the preparation of compounds of general formula (I), wherein R stands for a straight chained C1-5alkyl group substituted by a chlorine atom in the 2-position, and acid addition salts thereof, characterized by reacting a 3,5-dichloro-2-alkanone of general formula (V), wherein R is a defined above, with an inorganic thiocyanate, and a) converting the 3-thiocyanato-5-chloro-2-alkanone of general formula (IV), thus obtained, wherein R is as defined above, into 2-chloro-4-methyl-5-(2-chloroalkyl)-thiazole of general formula (II), wherein R is as defined above, by gaseous hydrochloric acid in an organic solvent, hydrogenating the said compound in the presence of a metal catalyst in an organic solvent, or b) reacting said compound of general formula (IV) with an aqueous mineral acid and treating the 2-hydroxy-4-methyl-5-(2-chloroalkyl)-thiazole of general formula (III), thus obtained with a halogenating agent, and hydrogenating the 2-chloro-4-methyl-5-(2-chloroalkyl)-thiazole of general formula (II) thus obtained, wherein R is as defined above, in an organic solvent in presence of a metal catalyst, and optionally converting the 4-methyl-5-(2-chloroalkyl)-thiazole of general formula (I), wherein R is as defined above, thus obtained or a hydrochloride salt thereof, in a manner known per se, into another acid addition salt or setting free a compound of general formula (I), wherein R is a defined above, from its acid addition salt.