baber/WOPTO huggingface dataset:
Patent CA-2072182-C (CA)
Title: Congestion control for high speed packet networks
Inventor: DOSHI BHARAT TARACHAND
IPC: H04L12/56
Filed: 1992-06-23
Granted: 1997-09-16
Abstract: Congestion in a high speed connection oriented packet is avoided by an in-call negotiation scheme for reserving bandwidth for real time calls and reserving buffer capacity for bursty calls. For a real time call, a centralized call controller in each switch in the network determines which of its outgoing trunkshas available the peak bandwidth needed to accommodate the call. If so, the callrouting is set up so that the call is directed through that trunk. Calls involving bursty data cause the call controllers in the switches to set up the routing of the call and allocate some minimum bandwidth on selected output trunks. A special packet which contains an indication of a requested buffer capacity is produced by the call transmitter and sent to all the switches along the route. At each switch along the route, a check is made to see if there is sufficient unallocated buffer capacity on associated trunks equal to the requested capacity. If so, that amount of buffer capacity is allocated to the call and the special packet is passed unchanged to the next switch. If that amount of buffer capacity is not available, then the switch may refuse the call by placing an indication of such refusal in the special packet and which is passed to the next switch. When the special packet has reached the intended destination of the call, an acknowledgment packet is produced and sent back to the origin. If the request for buffer capacity has been completely denied by one of the switches or if a smaller amount of requested buffer capacity has been written into the special packet by one of the switches,the acknowledgment packet deallocates the excess previously allocated buffer capacity on its trip back to the origin and notifies the transmitter of the buffer capacity which has been allocated along the route of the call, if any. If the call has not been completely denied, the data making up the call is then sent along the prescribed route at a rate which will not cause an overflow of the buffers allocated to the call.
Patent CA-2072260-C (CA)
Title: Method of synchronising the pseudo-random binary sequence in a descrambler
Inventor: COOK ANDREW ROBERT JOHN
IPC: H04L7/00
Filed: 1991-04-10
Granted: 1996-12-10
Abstract: In a data communication system a signal is coded with n-bit codewords, where n is an integer. The codewords are convert-ed to a serial bit-stream and scrambled using a PRBS (pseudo-random binary sequence) from a PRBS generator (4). The PRBS sequence has a length n x m where m is an integer. At a receiver the serial data is descrambled using a corresponding binary se-quence from a PRBS generator (5) matched to that in the transmitter. The descrambled data is decoded in a decoder (6) in syn-chronism with the binary seqUence in the generator (5) thereby maintaining word alignment between the transmitter and the re-ceiver.
Patent CA-2073849-C (CA)
Title: Fluid handling structure for use in absorbent articles
Inventor: JOHNSON THERESA LOUISE
IPC: A61F13/15
Filed: 1992-07-14
Granted: 1997-12-23
Abstract: Fibers  having  intra-fiber capillary  channels  are  used  in conjunction with topsheet materials in absorbent articles such as diapers, bandages and, especially, sanitary napkins.  In-use, the capillary channel  fibers draw fluid away from the topsheet to provide a clean, dry appearance.
Patent CA-2074535-C (CA)
Title: Hydroxamic acid containing polymers used as corrosion inhibitors
Inventor: FONG DODD W
IPC: C02F5/12
Filed: 1992-07-23
Granted: 2002-09-24
Abstract: Hydroxamic acid containing low molecular weight polymers have been found to be excellent corrosion inhibitors for iron and steel alloys in contact with industrial waters. When the waters contain hardness ions, such as calcium, magnesium, and mixtures thereof, the waters are preferably treated with combinations of the hydroxamic acid containing polymers and scale inhibiting/dispersing polymers, which polymers do not contain hydroxamic acid functional groups. The hydroxamic acid containing polymers, as well as the combination of hydroxamic acid and scale inhibiting/dispersing polymers may also both be formulated with other corrosion inhibitors.
Patent CA-2075721-C (CA)
Title: Process for cleaning up wet tailings ponds
Inventor: CLARKE THOMAS P
IPC: B01D21/00
Filed: 1992-05-01
Granted: 1996-02-20
Abstract: A process for the clean-up of wet tailings ponds produced in the operation of an oil sands extraction process includes the steps of removing matter from all layers of a pond and vacuum filtering the combined matter to obtain clarified water, bitumen and dry tailings. With this process, tailings ponds may be completely removed and the water contained therein recycled to the extraction process.  The uncovered area may be mined and the dry tailings may be used to reclaim mined-out areas.  Residual bitumen recovered from the pond material contributes to a reduction of the clean-up costs.  Environmental damage is minimized by complete removal of the pond.
Patent CA-2079737-C (CA)
Title: Process for regenerating a deactivated catalyst
Inventor: MURAKAWA TAKASHI
IPC: B01J29/90
Filed: 1992-10-02
Granted: 2002-12-31
Abstract: There is disclosed a process for regenerating a deactivated catalyst containing a zeolite and a noble metal of group VIII of the Periodic Table supported thereon which comprises subjecting the deactivated catalyst to decoking treatment under reductive or oxidative condition and subsequently to contact treatment with a solution containing a halogen or a halogen-containing compound and thereafter calcining the deactivated catalyst. According to the above process, the catalytic activity of a deactivated catalyst is restored to the level comparable to that of a fresh catalyst by the use of an inexpensive regenerating agent and simplified steps. Thus, the regeneration process is expected to find effective use in petroleum refinery, petrochemical industry, etc.
Patent CA-2079912-C (CA)
Title: Hepatitis c virus epitopes
Inventor: REYES GREGORY
IPC: C07K14/10
Filed: 1991-04-05
Granted: 2000-07-11
Abstract: Peptide antigens which are immunoreactive with sera from individuals infected with hepatitis C virus (HCV) are disclosed. Several of the antigens are immunologically reactive with antibodies present in individuals identified as having chronic and acute HCV infection. The antigens are useful in diagnostic methods for detecting HCV infection in humans. Also disclosed are corresponding genomic-fragment clones containing polynucleotides encoding the open reading frame sequences for the antigenic peptides.
Patent CA-2084617-C (CA)
Title: Fire retarding and extinguishing composite
Inventor: BENNETT GEORGE ROBERT
IPC: A62D1/00
Filed: 1992-12-04
Granted: 1999-08-10
Abstract: The present invention concerns a fire retarding and extinguishing composite; more specifically, a liquid fire retarding and extinguishing composite for extinguishing fires caused by classes B and A materials and flammable organic solvents. The fire retarding and extinguishing composite of the present invention comprises: (a) an aqueous extract of plant ash and at least one plant selected from the group consisting of plants of Sapindaceae, Compositae, Cruciferae, Leguminosae, root skin of Ulmaceae, Phytolaccaceae and cotton seed; and (b) at least one surfactant, in an amount of 30-60 percent by weight of the weight of the aqueous extract of plant.
Patent CA-2085039-C (CA)
Title: Piezo valve
Inventor: FRISCH HERBERT
IPC: F16K31/00
Filed: 1992-12-10
Granted: 2003-02-11
Abstract: In order to balance out the effects of the electrical and mechanical relaxation of a piezo-electric bending element which has a control area that moves in response to an applied control voltage against an elastically applied counterforce, the counterforce is applied by way of a separate external loading system. In addition, the bending element can be pre-tensioned elastically against the action of the counterforce by means of a clamped end.
Patent CA-2086179-C (CA)
Title: Thiazolidine compounds containing a quinone group, their preparation and their therapeutic uses
Inventor: YOSHIOKA TAKAO
IPC: A61P3/10
Filed: 1992-12-23
Granted: 2000-10-17
Abstract: Compounds of formula (I): (see formula I) (wherein: R1 is alkyl; R2 and R3 are each alkyl or alkoxy, or R2 and R3 together form an optionally substituted benzene ring and, when R2 and R3 together form said benzene ring, R1 is hydrogen, halogen or alkyl; R4 and R5 both represent hydrogen, or together represent a single carbon-carbon bond; w is a single band or alkylene; and Z is a hydrogen atom or a cation) have valuable therapeutic and prophylactic activities, including anti-diabetic activities.
Patent CA-2089944-C (CA)
Inventor: ANTHONY PHILIP M III
IPC: H01M50/262
Filed: 1993-02-19
Granted: 1998-08-18
Abstract: Abstract of the Disclosure A cordless electric device has a main body portion extending along an axis and a handle portion extending at an obtuse angle with respect to the axis, the handle receiving therein along a second axis a battery pack.  The device has a two-part housing, with the parts respectively defining the front and rear of the body and handle portions.  The front housing part has latching shoulders respectively disposed or the opposite sides thereof, with each defining a first latching surface disposed substantially parallel to the first axis, while the battery pack has two identical latch-ing members respectively disposed on opposite sides thereof and each resiliently displaceable between latching and release positions, each latching member having two second latching surfaces thereon in a V-shaped configuration, so that one of said second latching surfaces on each of said latching members is disposed substantially parallel to the first axis for engagement with the first latching surface of the corresponding latching shoulder to latch the battery back in place on the device.  The latching members are interchangeable and molding the forward housing part is facilitated.
Patent CA-2091557-C (CA)
Inventor: MOLIN GOERAN
IPC: A61K35/74
Filed: 1992-07-24
Granted: 1999-12-21
Abstract: A process for isolation of a strain of Lactobacillus having the ability of being established on human intestinal mucosa in vivo and being able to remain therein after oral administration for at least 10 days after the completion of the administration. By the process the new strains L, plantarum 299 (DSM 6595) and L, casei ssp, rhamnosus 271 (DSM 6594) have been isolated, which are useful for the prophylaxis or treatment of bacterial infections, especially in the form of a fermented nutrient composition.
Patent CA-2092236-C (CA)
Title: Low loss, electronic ballast
Inventor: NUCKOLLS JOE A
IPC: H05B41/16
Filed: 1993-03-23
Granted: 2002-12-17
Abstract: A low loss capacitive delivery system for converting a low voltage AC power source into a driving energy for a high voltage lamp is disclosed. The system involves delivering two energy loops with the first energy loop consisting of a high voltage low energy output to the lamp during a first half cycle of the AC power source operation and the second energy loop utilizing a high energy low voltage system delivering a high energy capacitive pulse to the lamp during a subsequent second half cycle operation of the power source. The first energy loop functions to lower the resistance of the lamp and the second energy loop operates the lamp after its resistance has been lowered. The system contains a matrix of diodes arranged in order to deliver the capacitive pulse of the second energy loop and to bypass the low energy high voltage circuit.
Patent CA-2092703-C (CA)
Inventor: PACKER JOHN STUART
IPC: A61B5/083
Filed: 1991-09-19
Granted: 1998-06-30
Abstract: Le moniteur artériel de CO2 et le contrôleur en boucle fermée destiné à être utilisé avec un ventilateur surveille la respiration d'un patient et mesure la PaCO2 en fonction d'un ratio d'espace mort, qui est le ratio de l'espace mort alvéolaire par rapport au volume respiratoire alvéolaire. La méthode comprend plusieurs étapes : surveillance continue des paramètres mesurables de la respiration d'un patient; obtention d'une valeur d'entrée de la PaCO2 à partir d'un échantillon de sang du patient et utilisation des paramètres de la respiration du patient et de la valeur d'entrée pour calculer le ratio de l'espace mort; détermination continue de la PaCO2 en se fondant sur l'hypothèse que le ratio de l'espace demeure ensuite constant. Les règles de décision obtenues à partir d'autres données mesurables sont de préférence utilisées également pour déceler l'apparition de changements dans le ratio de l'espace mort, puis un nouveau ratio de l'espace mort est ensuite déterminé à partir des paramètres de la respiration du patient et d'une nouvelle valeur d'entrée de la PaCO2 obtenue à partir de l'échantillon de sang du patient.
Patent CA-2093887-C (CA)
Inventor: MCGAFFIGAN THOMAS H
IPC: H05B6/02
Filed: 1993-04-13
Granted: 1998-09-29
Abstract: A jaw-like cylindrical tool for producing a strong electromagnetic field for causing a Curie point heater to be energized having a curved cross-section that brings the two edges of the jaw-like structure into contact, Closely spaced conductors lie along the inner surface of the structure transverse to its axis while widely spaced conductors lie transverse to said axis along the outer surface of the structure.  The inner surface of the structure has a plurality of axially extending ferrite rods lying immediately adjacent the inner surface conductors.  The inner and outer surface conductors are connected so that the currents flow in opposite directions, the outer conductors reducing electromagnetic radiation while the ferrites and inner conductor spacing produce a strong central magnetic field irrespective of the field created by the opposing field produced by the outer conductors.  The tool may be manufactured by laying each ferrite rod longitudinally along the flat surface of a D-shaped mandrel with the rods lying side by side transversely.  Conductors are wrapped transversely around the curved surface of the mandrel and over the ferrite rods.  The rods and conductors are bonded to one another, removed from the mandrel and the resulting structure curved until the longitudinal edges of the structure are in contact with one another.
Patent CA-2113751-C (CA)
Title: Method for image segmentation and classification of image elements for document processing
Inventor: RINDTORFF KLAUS
IPC: G06V30/40
Filed: 1994-01-19
Granted: 1999-03-02
Abstract: A method to  segment,  classify  and clean  an image  is presented. It may be used in applications which have image data as their input that contains different classes of elements. The method will find, separate and classify those elements.  Only  significant  elements  must  be  kept  for further processing and thus the amount of processed data may be significantly reduced.
Patent CA-2115862-C (CA)
Title: Technique for reducing polarization dependent gain in an amplified optical transmission system
Inventor: BERGANO NEAL S
IPC: H04B10/18
Filed: 1994-02-17
Granted: 1998-05-26
Abstract: A technique employing a depolarized optical source to reduce the polarization dependent gain associated with the optical pump signal used to excite doped fiber amplifiers within an optical transmission system. Pumping the doped fiber amplifiers with a signal that has no single predominant linear SOP, equalizes the gain of the amplifiers. A particular embodiment of the invention includes a pump comprised of a passive polarization scrambler coupled to the output of a multifrequency optical laser. The simple, passive arrangement keeps overall system costs to a minimum and increases reliability.
Patent CA-2117338-C (CA)
Title: Pvc building trim
Inventor: ANDERSON CARL E
IPC: E04F19/02
Filed: 1992-12-09
Granted: 2004-02-10
Abstract: A PVC building trim and a method of applying the trim to a surface by bending the PVC trim (12) to conform to the con-tour of the surface (36). The PVC is a high impact exterior PVC which can be bent to form permanent creases (74) at a job site insitu without cracking the PVC. In one embodiment the PVC is fastened to the surface and a PVC molding (24) is attached to the PVC trim (12) to cover any fasteners which may be used. The PVC trim (12) can be provided in a coil.
Patent CA-2121856-C (CA)
Title: Instant bingo game card
Inventor: BEHM WILLIAM F
IPC: A63F3/06
Filed: 1994-04-21
Granted: 2004-07-13
Abstract: The playability of an instant bingo game card or similar type game cards can be enhanced by providing for improved marking of numbers on a player card portion of the bingo card. In one approach, a space is provided along side each number in which a mark is printed and a scratch-off coating is applied over the mark. In a second approach, a microencapsulated pressure sensitive dye is applied over each number and by simply rubbing a particular number can be marked.
Patent CA-2123689-C (CA)
Title: Method and article for microwave bonding of splice closure
Inventor: CHAMBERLAIN CRAIG S
IPC: B65D81/34
Filed: 1992-11-25
Granted: 2004-06-15
Abstract: A method and article for microwave bonding of thermplastic closures such as that used in splicing telecommunications wires. The article is a composite bonding material (CBM) having a thermoplastic matrix (preferably polyethylene) which is miscible with the thermoplastic material of the closure, and a plurality of microwave susceptor particles dispersed throughout the matrix. A strip is fashioned from the CBM and may be applied to the sealing edges of the closure. Upon application of microwave energy in an amount sufficient to heat the susceptors and cause both the CBM  matrix and the adjacent portion of the closure to melt and flow together, a fusion bond is produced which seals the closure. If the closure is being used with a cable having an inner conductive layer or sheath, a second CBM may be used at this seal, having magnetically reactive susceptors.
Patent CA-2125099-C (CA)
Inventor: GUNNELL LYLE P
IPC: B23K37/06
Filed: 1994-06-03
Granted: 1998-12-29
Abstract: A joint container for forming a weld joint utilizing multiple  adjacent  metal  plates  which  are  spaced  apart  and positioned angularly to each other.  One of the plates forming the joint may extend continuously through the joints along a straight line.  At least first and second plates of the multiple plates may be at an acute angle to each other.  A dam member is placed in each of the spaces between each two adjacent plates.          The dam member between adjacent plates has a concave contour surface viewed in a direction toward the weld joint container.          Thereby stress inducing sharp corners in the finished weld joint are minimized due to the reduction of the angles of the corners provided by the contour of each dam surface when it engages one of the plates.  Also, the plates having ends at the joint have such ends cut parallel to and spaced from the plate extending continuously  straight  through  the  joint.  This  parallel relationship of the plate ends with the continuous plate also stress inducing sharp corners in the weld joint.
Patent CA-2126165-C (CA)
Title: Case for receiving at least one data storage disk
Inventor: LAMMERANT HENRI
IPC: G11B23/033
Filed: 1994-06-17
Granted: 2002-01-29
Abstract: A case for receiving at least one data storage disk has a housing with a lid and a base.      A support for receiving at least one data storage disk is positioned in the housing. The base has a flat rectangular bottom plate with lateral edges and sidewalls connected to the lateral edges. The lid has a flat rectangular top plate with lateral edges and side walls connected to the lateral edges. The lid and the base are pivotable relative to one another. The pivoting connection is realized by pivot pins connected to the sidewalls of the lid or the base and pivot holes for receiving the pivot pins provided in the sidewalls of the other housing part. The length of the pivot pins is greater than the thickness of the sidewalls with the pivot holes. The pivot pins have a radial enlargement that has a diameter greater than the diameter of tho pivot holes. The sidewalls of the lid or the base with the pivot holes have an insertion slot, extending from the upper edge of the respective sidewall to the pivot hole, for introducing the pivot pin into the pivot hole.
Patent CA-2126602-C (CA)
Title: Herbicidal compositions
Inventor: QUAGHEBEUR THEO
IPC: A01N41/02
Filed: 1994-06-23
Granted: 2006-11-07
Abstract: Co-application of certain chloroacetamide herbicides with certain triketone herbicides provides improved herbicidal activity.
Patent CA-2128945-C (CA)
Inventor: BAKER WILLIAM J
IPC: F16K5/06
Filed: 1994-07-27
Granted: 2001-12-04
Abstract: A flow control valve such as a ball valve (12) for controlling fluid flow through a flow line (16). The control valve includes a flow chamber (18), an upstream passage (19), a downstream passage (20), an annular valve body (24), a retainer (26) sealingly engaging the outer annular surface of the flow line and secured to the valve body by a pair of flanges (28), a flow control ball (32) rotatably disposed within the flow chamber for controlling fluid flow through the passages, an operating member (42) for rotating the ball between open and closed positions and means (70) for equalizing the pressure in the valve chamber. The ball includes a centrally bored flow passageway (36) for communicating fluid through the passages and is rotatably supported within the chamber by an annular upstream seat carrier (48) and an annular downstream seat carrier (50). Each seat carrier includes a ball seat (52) positioned within an annular recess (54) provided on the inwardly facing surface (55) of the seat carrier and an O-ring (56) positioned within an annular recess (58) provided on an axially facing surface (59) of the seat carrier. Each seat 52 includes an inwardly facing surface (60) that abuts the outer surface of the ball and an axially facing surface (62) that abuts an axial surface (64) of the seat recess.      The pressure equalizing means includes a passage (72) extending radially inwardly within seat carrier (48) and communicates with an annular groove (73) cut in axial recess (58) and with chamber (18) by an outlet (76) in a recessed portion (82) on an outwardly facing surface (80) of seat carrier (48).  Pressure is equalized when upstream pressure is introduced into chamber (18) inside O-ring (56), through groove (73) and through passage (72). The O-ring in seat carrier (50) seals against ball (32).
Patent CA-2129767-C (CA)
Title: Method and apparatus for reducing memory requirements in a reduced line, active addressing display system
Inventor: SAIDI ALI
IPC: G09G3/36
Filed: 1994-08-09
Granted: 1998-11-17
Abstract: A data communication receiver (605) receives and stores a set of image data and displays images associated therewith on a display (600') having rows divided into first and second segments (705, 710). The data communication receiver (605) comprises a database (635) for storing a set of orthonormal functions and row drivers (650) coupled to the database (635) for driving the first segment (705) of the display (600') with first voltages associated with a first subset of orthonormal functions and driving the second segment (710) of the display (600') with second voltages associated with a remaining function included in the set of orthonormal functions during a first plurality of sequential time slots. The row drivers (650) also drive the first segment (705) with the second voltages associated with the remaining function and drive the second segment (710) with the first voltages associated with the first subset of orthonormal functions during a second plurality of sequential time slots.