baber/WOPTO huggingface dataset:
Patent CA-2042683-A1 (CA)
Title: Enhanced high voltage line interface circuit
Inventor: PATEL LALIT O
IPC: H04Q11/04
Filed: 1991-05-15
Abstract: An enhanced high voltage line interface circuit for a digital switching system over which a connection is established between a digital switching system and a subscriber instrument via a subscriber loop.  The high voltage line interface circuit includes in combination circuits that provide power to the subscriber loop and  convert received analog voice signals transmitted from the subscriber instrument into differential voltage voice signals for subsequent conversion to digital data for use by the digital switching system. Additionally, differential voltage voice signals from the digital switching system are converted to analog voice signals for transmission along the subscriber loop to the subscriber instrument. The high voltage line interface circuit further includes circuits that detect and monitor the subscriber loop status and develop digital logic output signals that are used to report the status of the loop to a digital switching system controller.
Patent CA-2042736-A1 (CA)
Title: Bleach activation
Inventor: FAVRE THOMAS L F
IPC: C11D3/395
Filed: 1991-05-16
Abstract: Novel bleach and oxidation catalysts, a method of bleaching substrates using these catalysts and bleaching (detergent) compositions containing the catalysts are reported. The catalysts are manganese complexes of formula:      [LnTmmXp]2Yq wherein Tm is manganese or iron or mixtures thereof, which can be in the II, III, IV or V oxidation state or mixtures thereof; n and m are independent integers from 1-4; X represents a co-ordination or bridging species; p is an integer from 0-12; Y is a counter-ion, the type of which is dependent upon the charge z of the complex which can be positive, zero or negative; q = z/[charge Y]; and L is a ligand being a macrocyclic organic molecule.
Patent CA-2044400-A1 (CA)
Inventor: KEOGH KENNETH M
IPC: G06V10/143
Filed: 1991-06-12
Abstract: A method for extracting information from a document bearing (a) first indicia detectable in a first scan mode, using light in a first spectral range, but not detectable in a second scan mode, using light outside the first spectral range, and (b) second indicia detectable in either the first scan mode or second scan mode, where the second indicia represent information encoded in one or more forms decodable by automated symbol recognition resources, comprise several steps.  One or more areas of interest on the document are defined in which the second indicia may appear, with the definition including information specifying the form of encoding for the second indicia. The document is scanned in the second mode, using a scanner that produces a pixel image of the indicia detected and the resulting pixel data are stored in a memory device. An area of interest is selected from those defined for the document and the pixel image of that area of interest is processed with an automated symbol recognition resource suitable for the form of encoding specified for the second indicia in the selected area of interest to produce one or more output records incorporating symbol information representative of the second indicia.
Patent CA-2045219-A1 (CA)
Inventor: LONGPRE PIERRE
IPC: E02D29/14
Filed: 1991-06-21
Abstract: Dispositif protecteur de la chaussée pour utilisation dans un trou d'homme. Il est constitué par une pièce cylindrique fait pour reposer sur l'extrémité supérieure d'un tuyau vertical souterrain, et agencé pour recevoir le couvercle du trou d'homme. On retrouve une collerette à la base de la pièce cylindrique, qui s'insère de préférence avec jeu dans la partie supérieure du tuyau ainsi qu'une cavité périphérique sur sa paroi externe dans laquelle le revêtement constituant la chaussée vient s'encastrer. Le dispositif est de préférence fabriqué à partir de pneus usagés déchiquetés et ainsi disposé devient inamovible par rapport à la chaussée. Il est très peu coûteux et diminue les chocs et les bruits engendrés par la circulation.
Patent CA-2047423-A1 (CA)
Title: Handset
Inventor: KITAGAWA SHUJI
IPC: H04M1/19
Filed: 1991-07-19
Abstract: Abstract of the Disclosure:    This invention relates to a handset having a receiver and a transmitter in a unitary unit.          This handset includes in its casing a detector for detecting the vibration produced in each tissue of the head of people by the voice of a user, vibration-proofing means for the detector, an air chamber defined between the detector and the body of the user, an equalizer circuit for processing electric signals sent from the detector and a sound generation member.    The sound other than the voice of the user is cut off and is not detected due to the operation of the vibration means and the air chamber, the handset can be used without any problem under the situation of excessive noise.
Patent CA-2048530-A1 (CA)
Title: Membranes and membrane overlays for exclusion of erythrocytes for solid state assays
Inventor: KILLEEN YVONNE M
IPC: G01N33/52
Filed: 1991-08-07
Abstract: Abstract of the Disclosure A diagnostic test strip for chemically determining whole blood analytes comprises a support, a porous detection zone membrane affixed to the support, and an overlay membrane affixed to the support and in overlying and continuous contact with the detection zone membrane. The overlay membrane has a crenating agent for the exclusion of whole red blood cells from the pores of the detection zone membrane.
Patent CA-2049820-A1 (CA)
Title: Beater brush roller of vacuum cleaner beater brush assembly
IPC: A46B13/00
Filed: 1991-08-26
Abstract: The invention provides a beater brush roller of a vacuum cleaner beater brush assembly comprising a body assembly including a semi-cylindrical brush body having a helical brush strip integrally provided therewith, a semi-cylindrical beater body including a helical beater strip integrally provided therewith, and a pair of axles engaging with bearing mounts of the beater brush assembly for supporting rotation of the beater brush roller.  Annular supports are integrally provided in the body assembly for supporting the axles at opposite ends of the body assembly. The brush body, the beater body and the axles engage with a pair of set screws at the same time, together providing the beater brush roller.  The present invention provides a beater brush roller of  a vacuum cleaner beater  brush assembly, the advantages of which are in that it provides a simple structure facilitating the assembly thereof, and the attachment of the axles thereto is provided in such manner as to prevent cracking of the roller.
Patent CA-2060100-A1 (CA)
Title: Flexible magnetic disc cassettes with integrally molded drag fingers
Inventor: HUGHES PATRICK M
IPC: G11B17/03
Filed: 1992-02-04
Abstract: ABSTRACT      A molded plastics cassette case for rotatably accommodating a flexible magnetic disc (preferably a nominal 3.5 inch diameter microdisc) includes at least one, and preferably several, drag finger integrally molded therewith.  The drag finger has a base end which is structurally unitary with the cassette case, and a free terminal end, opposite to the base end, which imparts frictional drag resistance to the central hub of the flexible magnetic disc.  In this manner, more reliable rotational velocity of the spinning magnetic disc may be achieved without the need for separate liner and lifter structures associated with conventional microdisc cassettes, thereby simplifying cassette construction and assembly.
Patent CA-2062011-A1 (CA)
Title: Sealed package and method for sealing products in a package
Inventor: ANTAL JOHN L
IPC: B65D75/36
Filed: 1992-02-27
Abstract: ABSTRACT    A package  includes  a peripheral  flange around a blister defining an open cavity for receiving a product and a compressible insert for securing the product against movement in the cavity.  At least one projection on the insert extends laterally from the cavity over the peripheral flange, and a lid covering the cavity is continuously sealed to the peripheral flange and the projection along a single seal.  A method for sealing products in the package includes  supporting the peripheral  flange on a  rigid support surface, and compressing the lid against the peripheral flange with heat and pressure to compress the projection between the lid and the peripheral flange and heat seal the projection to the lid simultaneously with sealing of the lid to the peripheral flange along the peripheral seal.
Patent CA-2064640-A1 (CA)
Inventor: CLARK CARL E
IPC: G06F21/80
Filed: 1992-04-01
Abstract: Provides three access levels of storage key protection, comprising  a  supervisory  level  (key 0),  an  intermediate level  of non-public  and non-supervisory keys  (keys  1-8, 10-15),  and a unique public  level  (key 9).  The program routines operating with a supervisory-level access key can access both the public level and the intermediate level of storage blocks.  Although a program routine operating with an access key in the intermediate access level cannot access any supervisory level storage block, it can access any block assigned a public level storage key, as well as any storage block assigned the respective intermediate level key.  One or  more  third-level  public  storage  keys  (PSKs)  may  be provided. A program access key using one of the PSK values can only access blocks having the same PSK value,  and it cannot access blocks having any other key value.
Patent CA-2066337-A1 (CA)
Title: Plasticizing sections of cold feed rubber extruders
Inventor: MEYER PAUL
IPC: B29C48/64
Filed: 1992-04-16
Abstract: ABSTRACT OF THE DISCLOSURE An extruder with a screw rotatably mounted and driven to coact with a barrel.  The extruder comprising an inlet, a compression section, a plasticizing section and an exit-section, the plasticizing section embodying a Transfermix geometry and having the generic feature that following the compression-section, a helical groove in the screw varies in cross-section from full area to zero area and in a substantially corresponding length of the barrel the cross-section of an opposite-handed helical groove varies from zero area to full area, whereby in operation the flowing material is transferred from the screw to the barrel while being mixed and plasticized. The screw outside of the extending substantially to the bottom of the helical groove, and the said barrel at the position of the cut having joined with it so as to be immobile relative to it a set of flow interrupters, substantially equally spaced around its circumference, and extending substantially to the bottom of the helical groove the flow interrupters loosely fitting into the cuts in the screw.
Patent CA-2067639-A1 (CA)
Title: Packaging laminate with excellent sealing and barrier properties and also packaging container manufactured from the packaging laminate
Inventor: ROSEN AKE
IPC: B32B27/20
Filed: 1992-04-30
Abstract: Disclosed is a container having a wall for enclosing the contents of the container, the container comprising: a flexible wall laminate having a skeletal layer having an inner side and an outer side, the skeletal layer comprising a mixture of a plastic and a filler, wherein the amount of the filler in the skeletal layer is in the range of 50 to 80% by weight of the skeletal layer; and a barrier layer bonded to the inner side of the skeletal layer, the barrier layer comprising a mixture of a plastic of the same composition as the plastic in the skeletal layer, a plastic of a different composition from the plastic in the skeletal layer, and an electrically-conductive material in fine particle form, the different type of plastic providing oxygen impermeability to the barrier layer; the container being sealable by inductive heating, or by dielectric sealing due to the presence of the electrically-conductive material.
Patent CA-2068154-A1 (CA)
Inventor: HALLIGAN JANICE C
IPC: H04M19/02
Filed: 1992-05-07
Abstract: In accordance with an embodiment of the invention, a method of establishing call progress tones for a switching system having generic signal generating apparatus is comprised of the steps of displaying at least one form on a display and inserting into fields of the form definitions of the cadencing and particular generic signals associated with each call progress tone for a tone plan, temporarily storing the definitions in a memory compiling the definitions as control signals into object code, storing the object code in a random access memory, and using the object code in the processing of a call by a switching system processor to control provision of particular signals from the generic signal generating apparatus with particular cadence and signal level to a subscriber or operator.
Patent CA-2068892-A1 (CA)
Inventor: MUELLENBERG RALPH
IPC: F16B3/06
Filed: 1990-11-15
Abstract: (57) Abstract The tightener unit (100) comprises a tightening assembly (50) with mutually tightenable annular taper elements (51,53). The tightening assembly (50) is mounted on or in a cylindrical bushing (56) with a flange (57) which extends in front of the heads (13) of tightening bolts (14).  When the tightener is loosened, the bolts (14) are supported by the flange (57) and act both as tight-ening and as loosening bolts.
Patent CA-2070219-A1 (CA)
Title: Pie or pastry crust
Inventor: MOORE KATHERINE L
IPC: A21D10/02
Filed: 1992-06-02
Abstract: This invention relates to a pie or pastry dough, which provides a flaky tender pie crust when baked.  The product is a laminate of two phases, a dough like mixture of flour, water, salt and oil, and a shortening and starch phase.  One or both phases can contain a polyol.  These phases are laminated to make a heterogeneous pastry dough which has a flaky tender texture when baked.  The dough is characterized by having multiple, discontinuous layers which are interrupted by regions of gluten and the starch/fat/polyol phase, an increased dough strength and less water absorption over 24 hours.
Patent CA-2073138-A1 (CA)
Title: Use of 9,12,15-octadecatriene-6-ynoic acid
Inventor: BOREL CHRISTIAN
IPC: A61K31/20
Filed: 1992-07-03
Abstract: Abstract Uses of 9 (Z), 12 (Z),15(Z)-octadecatriene-6-ynoic acid The invention relates to the use of 9(Z),12(Z),15(Z)-octadecatriene-6-ynoic acid as a therapeutically active substance.
Patent CA-2073993-A1 (CA)
Title: 8-vinyl- and 8-ethinyl-quinolone-carboxylic acids
Inventor: PETERSEN UWE
IPC: C07D471/08
Filed: 1992-07-16
Abstract: B-Vinyl- and 8-ethinyl-quinolone-carboxylic acids Abstract of the disclosure The invention relates to new B-vinyl- and 8-ethinyl-quinolonecarboxylic acids, processes for their preparation, and antibacterial agents and feed additives containing them.
Patent CA-2076476-A1 (CA)
Inventor: CARIMALI FELIX
IPC: F02K1/70
Filed: 1992-08-20
Abstract: A reversal well (17) for the passage of the flow reversed by a turbojet thrust reverser is delimited on one side by a deflection edge (108) integral with a fixed part (1). 
<??>The longitudinal sections (A,B,C,D) of the deflection edge (108) have a progressive curvature from one lateral edge of the reversal well to the other so as to enhance the control of the streams of the reversed flux. 
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Patent CA-2077116-A1 (CA)
Title: Blanking interval voltage deviation compensator for inverters and converters
Inventor: BLASKO VLADIMIR
IPC: H02J3/18
Filed: 1992-08-28
Abstract: ABSTRACT           The invention is used in a voltage conversion bridge for use in converting an AC voltage to a DC voltage or inverting a DC voltage into an AC voltage.  In a three-phase bridge having one of three reference phase voltages UA or UB or UC associated with each leg, one of the switches S1, S2 or S3 (or alternatively their complements S1*, S2* or S3*) conducts in the time intervals where the associated voltage UA, UB or UC has a higher (or alternatively, smaller) amplitude than the other two reference voltages, and during these times the blanking interval compensation loss is compensated.  according to the invention, (a) a three reference voltages are supplied; (b) the maximum of these voltages is detected; (c) the maximum is subtracted from the peak value of a triangle wave used for forming the PWM signal; (d) the difference is added to each of the reference voltages to form a three first augmented reference voltages to a blanking interval loss compensator; (e) if the voltage conversion bridge is not saturated and adding a blanking interval deviation voltage compensation signal would not cause saturation, a blanking interval voltage deviation compensation signal is added to the first augmented reference voltages to compensate for voltage deviation caused by a blanking interval, thereby providing second augmented reference signals; and (f) the compensated signals are supplied to the PWM section, which in turn supplies PWM signals to a three-phase bridge.  This method minimizes voltage deviations caused by the use of a blanking interval.
Patent CA-2077476-A1 (CA)
Inventor: ALMENDRES MARTINEZ JOSE J
IPC: A23L17/00
Filed: 1992-09-03
Abstract: Une denrée alimentaire, type hamburger, qui emploie comme produit de base pour son élaboration un mélange de poissons bleus en morceaux, sans arêtes et sans viscères ou nets de peau, sans tête et sans viscères, mêlés ou assaisonnés avec une série de composants d'arôme, goût et conservation naturels, le produit devant rester surgélé.
Patent CA-2078674-A1 (CA)
Inventor: BLASS CLIVE JEREMY
IPC: A47F5/00
Filed: 1991-03-19
Abstract: A shelving/display system in which a support rail (1) with an upstanding lip (3) is attached to a wall or vertical surface and one or more hangers (11) with an arm (16) extending therefrom is releasably attachable thereto. Preferable each hanger (11) and arm (16) includes cooperating locating mean, (15, 18) whereby the location of the arm (16) can be adjusted intermediate the ends of the hanger (11).
Patent CA-2081987-A1 (CA)
Title: Bismaleimide-triazine resin bonded superabrasive wheels
Inventor: IKA PRASAD V
IPC: C09K3/14
Filed: 1992-11-03
Abstract: An improved superabrasive composition for grinding applications comprising a superabrasive material, a bismaleimide-triazine addition copolymer resin which as a cured polymer exhibits (i) a glass transition temperature (Tg) of at least about 280°C. and (ii) a long term thermal resistance of at least about 180°C., a free radical generating initiator, and preferably a catalyst, is disclosed. The superabrasive abrasive composition is particularly useful as a cutting edge in a high performance cutting wheel.
Patent CA-2082178-A1 (CA)
Inventor: KIM KI H
IPC: B65D27/16
Filed: 1992-11-05
Abstract: Removable Self Stick Envelope Name of inventor: Ki  Ho  Kim Abstract In order to close glued envelopes people have to apply water or have to apply saliva using their tonge on the side with glue in every case. One of these actions is an inconvenience and the other is not a beautiful sight. Removable self stick envelopes, using removable self stick material instead of glue, shall remove such inconveniences and unbeautiful actions and also save time with a lot of jobs. It just needs to be folded and pressed down and gives us the advantage of keeping the contents beautiful with the envelopes and is easy to open.
Patent CA-2082797-A1 (CA)
Title: Radioiodinated benzovesamicol analogs for cholinergic nerve mapping
Inventor: WIELAND DONALD M
IPC: C07D211/26
Filed: 1991-05-10
Abstract: Radioiodinated benzovesamicol analogs which selectively localize in presynaptic cholinergic neurons of general formula (I), where X is selected from the group consisting of H, OH, NH2, NHCO-3-[I]-Ph, and a radioactive isotope of iodine, and Y is selected from the group of H and a radioactive isotope of iodine, Y being H  if X contains iodine. Illustrative examples include:  (±)-trans-2-hydroxy-5-iodo-3-(4-phenylpiperidino)tetralin;  (±)-trans-3-hydroxy-5-iodo-2-(4-phenylpiperidino)tetralin;  (±)-trans-5-amino-2-hydroxy-8-iodo-3-(4-phenylpiperidino)tetralin; and (±)-trans-2-hydroxy-5-(3-iodobenzamido)-3-(4-phenylpiperidino)tetralin. The novel radioiodinated benzovesamicol analogs may be used as radiopharmaceuticals to visualize cholinergic neurons with conventional imaging devices which are typically found in most nuclear medicine or radiology clinics.
Patent CA-2083187-A1 (CA)
Inventor: MASTERS HOWARD A
IPC: B66F7/18
Filed: 1992-11-18
Abstract: An air-oil full hydraulic reservoir tank of the type used with a vehicle lift system.  The tank includes a tank wall forming the tank and a discharge pipe within the tank.          The discharge pipe includes an inlet tube portion, an outlet tube portion, each extending through an upper portion of the tank, and a connection, such as a connecting loop portion or a passageway in a casting, within a lower portion of the tank, that joins the lower ends of the inlet and outlet tube portions.  A low oil control mechanism within the tank blocks the flow of hydraulic oil from the inlet tube portion to the outlet tube portion when the level of the oil is below a predetermined level, thereby preventing the flow of air through the outlet tube.  The inlet tube may be perforated, and the low oil control mechanism may be a float within the inlet tube that rests on a valve seat to block the flow of air into the outlet tube.  A connecting pipe joins the reservoir tank to a hydraulic lift cylinder, with interposed control valves.  The hydraulic lift cylinder raises and lowers a piston as air is forced into or bled from the reservoir tank, forcing oil from the reservoir tank into and from the lift cylinder.
Patent CA-2084218-A1 (CA)
Title: Method and apparatus for burying waveguide paths
Inventor: BEGUIN ALAIN M J
IPC: G02B6/122
Filed: 1992-12-01
Abstract: Abstract of the Disclosure Optical waveguide paths are formed under the surface of a glass substrate by a method comprising (a) forming by ion-exchange a dopant ion path on a first substrate surface, (b) applying an electrode to the second surface, (c) contacting the first surface with a molten salt bath, and (d) applying an electrical field across the substrate to drive the dopant ions deeper into the substrate.    The apparatus comprises means (37) for supporting the substrate (13') such that the first substrate surface (17') is in contact with the molten salt bath (10').  A porous electrode (19') is disposed on the second surface (18') of the substrate.  Means (23') applies a voltage to the porous electrode and the bath to create the electrical field.  The substrate supporting means (37) includes a planar conductive surface (42) for contacting the porous electrode (19').  A groove (41) extends around the periphery of the conductive surface, and means (40, 43) evacuates the groove and removes oxygen from porous electrode (19').  A glass insulating ring (35) can be affixed to the periphery of the second surface (18') to prevent salts from the bath (10') from migrating up the side surfaces of the substrate by capillary action.
Patent CA-2087058-A1 (CA)
Title: Lint brush assembly
Inventor: BRAZIS WILLIAM E
IPC: A46B7/04
Filed: 1993-01-11
Abstract: ABSTRACT A lint brush is disclosed comprising a unitarily formed, one-piece brush body (4) having a handle portion (16) at one end and a brush block portion (14) at an opposite end, the block portion having top and bottom recesses (20) and at least two transverse through bores (26) extending therethrough, whereby one recess communication with the other. A pair of identical insert members (6,8) are inserted into the recesses, and provide stakes (42) which project through the block portion through bores and into appropriately located apertures (41) of the opposite insert plate, whereby securing the assembly together. A lint attracting pad (12) is provided for each insert plate, and overlaps outwardly directed insert plate teeth (36), which, upon insertion of the insert plate into a block portion recess, trap lower edges of the lint pad against sidewalls (22) defining the recess. The pad is securely held for reciprocal movement across a garment.