baber/WOPTO huggingface dataset:
Patent CA-2005798-C (CA)
Inventor: KALB ALFRED
IPC: B65D45/34
Filed: 1989-12-18
Granted: 1995-09-12
Abstract: A tension ring closure for a container tensioning ring comprises a pair of rings ends arranged to slide over each other in a closed position, and a tensioning lever coupled to the ring ends for tensioning the ring in the closed position. The tensioning lever is secured against unauthorized opening. An outwardly oriented lock loop is located in the vicinity of the lower ring end, and passes through an opening in the outer ring end when the tensioning ring is in the closed position.  In this manner, the outer ring end is secured against accidental displacement.
Patent CA-2006473-C (CA)
Title: Improved anti-infective therapy
Inventor: SHAK STEVEN
IPC: C12Q1/68
Filed: 1989-12-21
Granted: 2002-02-05
Abstract: IMPROVED ANTI-INFECTIVE THERAPY  Abstract of the Disclosure DNA isolates coding for human DNase and methods of obtaining such DNA are provided, together with expression systems for recombinant production of human DNase useful in therapeutic or diagnostic compositions.
Patent CA-2007232-C (CA)
Inventor: HAMMER KLAUS-DIETER
IPC: A22C13/00
Filed: 1990-01-05
Granted: 1998-06-23
Abstract: A tubular foodstuff casing, in particular synthetic sausage casing, based on cellulose contains a  di-n-didecyl-dimethylammonium compound as a fungicidal agent, which is optionally used in admixture with salts of sorbic acid, fungicidal heterocyclic compounds, such as an isothiazolone compound, or glycerol monolaurate.  The coating prevents mold attack on the casing.
Patent CA-2010869-C (CA)
Title: Process for preparing high solids slurries
Inventor: STORY PHILLIP MILES
IPC: C09D17/00
Filed: 1990-02-23
Granted: 2000-01-04
Abstract: A titanium dioxide pigment slurry containing from about 70 to about 80 percent by weight solids content is provided by dewatering, at superatmospheric pressure, a highly dispersed pigment slurry containing from about 20 to about 50 percent by weight of an untreated, nonflocculated titanium dioxide pigment and which slurry has a pH of below about 4.0 or above about 8.0 to produce a wet filter cake. The wet filter cake is reslurried in the presence of a dispersing agent. The high solids content slurry preferably is prepared from rutile titanium dioxide pigment.
Patent CA-2013804-C (CA)
Title: Drilling
Inventor: CLARK IAN ERIC
IPC: E21B10/46
Filed: 1990-04-04
Granted: 1998-11-24
Abstract: A rotatable crown for a rotary drill comprising a working end and an opposite end for engagement in a drill rod, stringer or adaptor coupling, the working end having a cutting face and a plurality  of  discrete,  spaced,  elongate  cutting  elements located in the cutting face, each cutting element:           (1)   being of square or rectangular cross-section;            (2)   presenting a cutting point which is defined by a corner of the element;            (3)   having  a  longitudinal  axis  which  extends  behind  the cutting face;  and (4)   being made of thermally stable abrasive compact.            The  crown  has  particular  application  for  the  drilling  of substrates having a compressive strength of at  least  180MPa such as Paarl granite, Norite Gabbro and Reef Quartzite.
Patent CA-2014249-C (CA)
Title: Low permeability fabric and method for making same
Inventor: THORNTON PETER B
IPC: D03D15/00
Filed: 1990-04-10
Granted: 1997-05-13
Abstract: A strong, lightweight, thin, flexible fabric of low permeability comprising an uncoated woven cloth characterized by a permeability of not more than one cubic  foot  of  air  per  minute  per  square  foot  of cloth  (0.5  cm3/sec/cm2 )  at  a  pressure  drop  of 0.5 inch of water (1.27 cm) across the cloth.  The cloth  is  calendered  on  both  sides  to  reduce  its permeability.
Patent CA-2017511-C (CA)
Title: Microwave responder
Inventor: HARUYAMA SHINICHI
IPC: H01Q1/22
Filed: 1990-05-24
Granted: 1993-11-30
Abstract: Abstract of the Disclosure A microwave responder resonates or does not resonate with a microwave transmitted from a radio transmitter, and radiates the resonated microwave as a response signal wave.  Two microstrip lines are linearly arranged to be separated from each other at a predetermined interval.  A diode which is switched between ON and OFF states in response to the response signal is interposed between two end portions of the microstrip lines separated by the predetermined interval, and a distance, between distal ends of the two linearly arranged microstrip lines, which includes an impedance defined by the ON or OFF state of the diode is determined to be 1/2 a wavelength of the microwave.
Patent CA-2018579-C (CA)
Title: Process for production of magnesium chloride
Inventor: TVETEN KJELL W
IPC: C01F5/30
Filed: 1990-06-08
Granted: 1996-12-10
Abstract: Process for production of magnesium chloride with sufficient purity for the production of magnesium metal, by leaching a magnesium containing raw material in hydrochloric acid. It is essential to keep the ratio between acid soluble iron and nickel greater than 120 and the ratio between acid soluble iron and phosphorus greater than 20 in the primary magnesium chloride solution, to obtain a sufficiently pure product. The acid soluble iron can partly or completely be substituted by an equal, molar amount of acid soluble aluminium.  It is especially preferred to use mixtures of macro- and crypto-crystalline magnesites in the ratio 1:10 - 10:1 as raw mater-ial.
Patent CA-2019300-C (CA)
Title: Multiprocessor system with shared memory
Inventor: FRANK STEVEN J
IPC: G06F9/52
Filed: 1990-06-19
Granted: 2001-06-12
Abstract: A digital data processing system includes a plurality of central processor units which share and access a common memory through a memory management element. The memory management element permits, inter alia. data in the common memory to be accessed in at least two modes. In the first mode, all central processing units requesting access to a given datum residing in memory are signalled of the datum's existence. In the second mode, only selected central processing units requesting access to a resident datum are notified that it exists, while others requesting access to the datum are signalled that it does not exist. The common memory can include a plurality of independent memory elements, each coupled to and associated with, a respective one of the central processing units. A central processing unit can include a post-store element for effecting the transfer of copies of data stored in its associated memory element to a memory element associated with another central processing unit.
Patent CA-2020264-C (CA)
Title: Digital filter
Inventor: TAGUCHI MASAYUKI
IPC: H03H17/08
Filed: 1990-06-29
Granted: 1993-11-30
Abstract: Abstract of the Disclosure:     A digital filter receives an input data of N bits and generates an output data obtained by totally summing partial products each of which corresponds to a product of each bit and a predetermined coefficient. This digital filter comprises an input register for latching the input data in the form of L divided blocks each composed of M bits, a delay-latch circuit connected to the input latch and for outputting the N-bit data with a predetermined delay time, a multiplication circuit having M memories and for multiplying a predetermined coefficient to each bit for each of the M-bit blocks outputted from the input register and the delay-latch circuit, and an addition circuit for sequentially summing data, block by block, outputted from the multiplication circuit.
Patent CA-2025491-C (CA)
Title: Methods and materials for phe a feedback inhibition resistance
Inventor: FOTHERINGHAM IAN G
IPC: C12N15/60
Filed: 1990-09-17
Granted: 2001-02-06
Abstract: Disclosed are DNA sequences encoding deletion, substitution and/or addition analogs of the E. coli enzyme, chorismate mutase/prephenate dehydratase (CMPD). Preferred expression products include [des-Gln307, des-Ala308, des-Gly309, des-Ala310]CMPD; [Leu306]CMPD; [des-Thr304, Lys305, des-Gln306]CMPD; and [Cys309]CMPD display enzymatic activity of the wild type enzyme but are more resistant to inhibition in the presence of phenylalanine.
Patent CA-2033640-C (CA)
Title: Vaccines against cancer and infectious diseases
Inventor: GOLDENBERG DAVID M
IPC: A61P31/00
Filed: 1991-01-04
Granted: 2005-10-18
Abstract: A method of stimulating an immune response in a human against malignant cells or an infectious agent comprises the step of administering to the human an immunogenic amount of a primate anti-idiotype antibody or antibody fragment that acts as an immunogenic functional mimic of an antigen produced by or associated with a malignant cell or an infectious agent.       Sub-human primate anti-idiotype antisera, especially from baboons, are preferred. Such anti-idiotype antibodies are used to make vaccines for inducing preventive immunity or a therapeutic immune response against tumors, viruses, bacteria, rickettsia, mycoplasma, protozoa, fungi and multicellular parasites.
Patent CA-2042344-C (CA)
Title: Mdi fault detection apparatus using initial turn-on and noise timers
Inventor: HACH LARRY R
IPC: G01R31/50
Filed: 1991-05-10
Granted: 1995-05-16
Abstract: A motor driver interface (MDI) circuit includes fault detection apparatus effective to detect short circuits to the power supply in the switching transistors of an H-bridge reversible DC motor arrangement.  A pair of timers distinguishes a true fault condition.  The first timer is responsive to a continuous fault detection to define a first time period from its initiation; and a second timer is responsive to a continuous presence of a transistor conduction signal to define a second time period from its initiation.  The apparatus stores a fault signal in response to the detection of the fault condition at the end of the first or second time periods with the first timer providing fault detection upon turn-on after the brief initial high transistor turn-on current and the second timer providing noise immunity.
Patent CA-2044404-C (CA)
Title: Self-clocking glyph shape codes
Inventor: BLOOMBERG DAN S
IPC: G06V30/224
Filed: 1991-06-12
Granted: 1998-06-23
Abstract: This invention provides self-clocking glyph shape codes for encoding digital data in the shapes of glyphs that are suitable for printing on hardcopy recording media. Advantageously, the glyphs are selected so that they tend not to degrade into each other when they are degraded and/or distorted as a result, for example, of being photocopied, transmitted via facsimile, and/or scanned-in to an electronic document processing system. Moreover, for at least some applications, the glyphs desirably are composed of printed pixel patterns containing nearly the same number of ON pixels and nearly the same number of OFF pixels, such that the code that is rendered by printing such glyphs on substantially uniformly spaced centers appears to have a generally uniform texture. In the case of codes printed at higher spatial densities, this texture is likely to be perceived as a generally uniformgray tone.   Binary image processing and convolution filtering techniques for decoding such codes also are diclosed, but this application focuses on the codes.
Patent CA-2044681-C (CA)
Title: Electric exploding bridge wire initiators
Inventor: TRUE DONALD CLINTON
IPC: C06C5/06
Filed: 1991-06-14
Granted: 2002-02-26
Abstract: Electric Exploding Bridge Wire Initiators An exploding bridge wire (EBW) initiator assembly is provided which is particularly adapted for the initiation of an attached length of low energy shock wave conductor. The EBW comprises a hollow tube having an exploding bridge wire in one end of the tube, which directly initiates a length of shock wave conductor inserted into the opposite end of the tube. The entire assembly may be housed within a protective enclosure adapted for snap-fit connection kith a source of electrical energy. The initiator can be initiated by relatively low voltage power supplies and is significantly safer than conventional EBW initiators.
Patent CA-2045830-C (CA)
Inventor: MIEHE DONALD R
IPC: E05B5/00
Filed: 1991-06-27
Granted: 1996-12-17
Abstract: The present invention discloses a flush door latch assembly having a housing with a recess defined therein and a paddle within the recess. Pulling on the paddle causes a cam having a helical cam face to cooperate with a cam follower to cause rotation of a pivot plate that retracts the plunger bolt and permits a door, hatch or the like having the present door latch assembly to be opened. The plunger bolt travels towards the same side of the latch assembly that the paddle travels towards when the plunger bolt is being retracted.
Patent CA-2047842-C (CA)
Inventor: LE NOANE GEORGES
IPC: G02B6/44
Filed: 1991-07-24
Granted: 1994-07-26
Abstract: D E D I V U L G A T I O N Le câble de télécommunication selon l'invention comporte une série de fibres optiques de préférence revêtues d'une couche d'identification colorée , divisé en modules chacun enveloppé d'une gaine de maintien de faible épaisseur, facilement déchirable et de préférence de couleurs variées en contact avec les fibres optiques, et une enveloppe de protection en contact avec les gaines de maintien. Figure unique.
Patent CA-2057016-C (CA)
Inventor: RAGLAND G WILLIAM
IPC: B32B15/04
Filed: 1990-05-30
Granted: 2001-02-27
Abstract: A lightweight and resilient heat barrier laminate which provides sound and vibration dampening. The laminate has a density less than about 5 lb/ft3 and a total thickness of no greater than about 1 inch. The laminate includes a first metal foil having high heat conductivity and a first batt of insulating nonwoven fiber material having a thickness of at least about 0.03 inch. The first batt is an outermost layer of the laminate which is adhesively bonded to a first side of the first metal foil.      The laminate also includes a second metal foil and a second batt of insulating nonwoven fiber material different from the material of the first batt. The second batt has a thickness of at least twice as thick as the first batt and is adhesively bonded to a second side of the first metal foil. The second metal foil is an outermost layer of the laminate, has high heat conductivity, is in contact with the second batt of insulating material and can be in contact with a carpet.
Patent CA-2063901-C (CA)
Title: Cellular data overlay system
Inventor: SLEKYS ARUNAS G
IPC: H04W72/12
Filed: 1992-03-24
Granted: 2002-08-13
Abstract: A cellular telephone system includes a packet-switched digital data communication subsystem overlaying a circuit-switched (e.g., voice) communication subsystem, with voice and data services sharing the same voice channels. The voice communication subsystem provides voice services independently of the operation of the data communication subsystem. On the other hand, the data communication subsystem monitors use of the voice channels for voice communication, and, in response thereto, temporarily allocates one or more of the available voice channels for data service. In a preferred embodiment, each data basestation transmits, from time to time, an available-channel signature to identify those, if any, of the data-allocated channels that are not then being used to transmit voice or data. For data communication, a remote unit monitors selected voice channels in the coverage area of the cellular telephone system for available-channel signatures, selects one of the channels (if any) identified by the signature thereon as being available for data transmission, and transmits or receives digital information over that channel.
Patent CA-2064437-C (CA)
Title: Grain refining alloy and a method for grain refining of aluminium and aluminium alloys
Inventor: ARNBERG LARS
IPC: C22C21/02
Filed: 1992-03-30
Granted: 2002-03-12
Abstract: The present invention relates to a method for grain refining of aluminium and aluminium alloys wherein a siliconboron alloy containing between 0.01 to 4.0 %  by weight of boron is added to molten aluminium or aluminium alloy in such an amount that the resulting melt of aluminium or aluminium alloy contains at least 50 ppm boron. The invention further relates to a grain refining alloy for aluminium and aluminium alloys which grain refining alloy is a siliconboron alloy containing between 0.01 and 4.0 % by weight of boron.
Patent CA-2069840-C (CA)
Title: Disposable protective garment adapted to stretchably conform to a wearer
Inventor: WESSEL JOYCE ANN
IPC: D04H5/10
Filed: 1992-05-28
Granted: 2003-07-08
Abstract: Disclosed is a disposable protective garment adapted to stretchably conform to the body of a wearer, the garment being composed of at least one piece of a reversibly-necked material which is adapted to have recoverable stretch in at least one direction. The reversibly-necked material is necked by drawing and treated to impart memory of its necked configuration so it has recoverable stretch while also being breathable, liquid resistant and conformable.      The disposable protective garment may contain a body portion, sleeve portions and/or leg portions. The stretch direction of reversibly-necked material may be parallel to the direction of motion of the body portion, sleeve portions and/or leg portions.
Patent CA-2071264-C (CA)
Inventor: LOU PERRY W
IPC: H03K5/00
Filed: 1992-06-15
Granted: 1999-11-30
Abstract: REGULATED DELAY LINE                  Abstract of the Disclosure Three delay lines may have common characteristics.          The first delay line delays the rising edge of an input signal and a first inverter inverts this signal to provide a falling edge.  A second inverter inverts the rising edge of the input signal to produce a falling edge which is introduced to the second delay line in a second path with the second inverter.          The signals from the two paths may be introduced to a comparator which produces a control signal having logic levels dependent upon the relative times that the falling edges occur for the signals in the two paths.  For example, the control signal may have the first logic level when the falling edge occurs first in the first path and the control signal may have the second logic level when the falling edge occurs first in the second path.  The voltage from a charge pump is adjusted in accordance with the logic level of the control signal.          This voltage is introduced to the first and second delay lines to adjust their delay to minimize the time difference in the falling edges of the signals from these lines.  This voltage is also introduced to the third delay line to adjust its delay in accordance with the adjustments in the delays in the first and second lines.  In this way, the third delay line provides the same time for rising edges and falling edges in data signals introduced to the line.
Patent CA-2075302-C (CA)
Title: Method and apparatus for real-time demodulation of a gmsk signal by a non-coherent receiver
Inventor: WEIGAND DAVID L
IPC: H04L7/04
Filed: 1992-01-30
Granted: 1996-08-27
Abstract: The GMSK real-time demodulation apparatus and pro-cess of the present invention demodulates a coherent quadra-ture phase modulated GMSK signal in real-time using a non-coherent receiver. The GMSK signal is initially non-coher-ently detected, thus producing a channel symbol signal. This signal is then differentially decoded to recover the encoded dig-ital information.
Patent CA-2076808-C (CA)
Title: Sheet stacking apparatus with angled sheet transport belts
Inventor: SZE CHO
IPC: B65H29/40
Filed: 1992-08-25
Granted: 1997-03-18
Abstract: A sheet stacking apparatus for stacking a side variety of sheets including flimsy sheets has a rotatable disc that receives each sheet in a slot thereof and inverting the sheets. A transport belt is closely adjacent one surface area of the disc and has a portion thereof positioned at an acute angle with respect to a line tangent to the one surface of the disc so that the trail edge of all sheets being inverted by the disc contact the belt and are inverted.
Patent CA-2079808-C (CA)
Title: Measuring and indicating device
Inventor: VAN DEN WOLDENBERG RICHARD
IPC: D21F1/02
Filed: 1992-01-31
Granted: 1997-03-25
Abstract: A measuring and indicating device (10) for the position of a headbox profile bar relative to a measuring reference (2, 7) has an electrical signal emitter (11) and an indicating device (12).  Arranged in a measuring housing (13) are the stationary part (for instance measuring coil 14) of the electrical signal emitter (11) and a measuring element (15) which is movable along a longitudinal axis.  The indicating device (12) comprises an indicator housing (17) and a probe element (18) which is movable along a longitudinal axis. The measuring housing (13) of the electrical signal emitter (11) has in the area of its longitudinal axis two connecting fixtures (13', 19) for a rigid, butadjustable connection each, for one, to the indicator housing (17) and, for another, to the measuring reference (2, 7).
Patent CA-2089844-C (CA)
Title: Tire bead breaker
Inventor: UNRAU ERDMAN
IPC: B60C25/02
Filed: 1993-02-18
Granted: 1997-04-29
Abstract: A tire bead breaker is used for a pneumatic tire mounted on a wheel. The breaker has an elongate main body that extends from the tire rim where the bead is to be broken across the center of the wheel. Two rim engaging hooks at the end of the main body engage under the wheel rim and are held in place using a retainer plate that engages the inside of the rim and is itself retained in place using a keeper mounted on the main body. The bead is dislodged using a push rod with a curved, spatulate head that engages the side wall of the tire and is driven against the tire side wall using a bolt threaded into the end of a sleeve in which the push rod slides.
Patent CA-2091304-C (CA)
Title: Substituted imidazole derivatives
Inventor: POSS MICHAEL A
IPC: A61K31/675
Filed: 1993-03-09
Granted: 2003-12-30
Abstract: Novel compounds having the formula   where A is   or   and X, R1, R2. R3, R4, R5 and R6 are as defined herein.      These compounds inhibit the action of angiotensin II and are useful, therefore for example, as antihypertensive agents.
Patent CA-2095926-C (CA)
Title: Anti-human milk fat globule humanised antibodies
Inventor: ADAIR JOHN ROBERT
IPC: A61K47/48
Filed: 1992-09-24
Granted: 2002-07-16
Abstract: Humanised antibody molecules (HAMs) are described having specificity for human milk fat globate and having an anti-gen binding site wherein at least one of the complementarity determining regions (CDRs) of the variable domains is derived from the mouse monoclonal antibody CTMO1 and the remaining immunoglobulin-derived parts of the HAM are derived from a hu-man immunoglobulin. The HAMs maybe chimeric humanised antibodies or CDR-grafted humanised antibodies and are prefer-ably produced by recombinant DNA techniques. The HAMs may be conjugated to an effector or reporter molecule, particularly methyltrithio anti-tumour agents, and are useful for in vivo diagnosis and therapy.
Patent CA-2102008-C (CA)
Inventor: CLOPTON ROBERT T
IPC: B65G21/00
Filed: 1993-10-29
Granted: 1998-06-16
Abstract: A conveyor which utilizes a roller chain to carry a product includes guide slots, clips for covering spaces in the top surface of the chain, removable support rails, a bladder-operated stop, and a special drive housing which is easily removable and which includes guide slots aligned with the guide slots in the conveyor frame.