baber/WOPTO huggingface dataset:
Patent CA-2094404-C (CA)
Title: Maintenance of message distribution trees in a communications network
Inventor: DRAKE JOHN ELLIS JR
IPC: H04L12/18
Filed: 1993-04-20
Granted: 1999-02-16
Abstract: Each node in a multinode communication system is provided with programming to act as a Set Manager for a given set of nodes  and users.   Functions  of  the  Set Manager  include operation  processes  for  creating  distribution  trees  for efficient  multicast  and  bandwidth  reservation  tasks. Because set membership is not necessarily fixed or accurate at the time the distribution tree  is created,  the Tree Leader  task  that  creates  and maintains the  trees  needs accurate and updated information showing the number of users at  the  nodes  it  serves  which  are participating  in  the distribution tree.   The  count  of  active  users  at  nodes served by the Tree Leader is provided in response to an indicia established at the time the Tree Leader sets up the tree.  Each Set Manager at a given node monitors for changes in  set  membership  and  link  failure  and  notifies  the requesting  Tree  Leaders  for  each  tree  in  which  it participates whenever changes in the number of users either by joining or leaving the set or link failures occur by direct communication between the Set Managers and the Tree Leaders without requiring intervention of other elements in the system.
Patent CA-2125716-C (CA)
Inventor: BURROWS ROGER IAN
IPC: G09B5/00
Filed: 1994-06-13
Granted: 1997-12-23
Abstract: An interactive book or device (100) having a mechanism for generating a plurality of sensory outputs in a manner that  maximizes the interaction between the user and the book or device.  The interactive book includes function initiators (106) for initiating a unique sensory output that corresponds to a visual indicia (114)  on a page of the book (104).  A function level selector (108) is coupled to the function initiators (106) that selectively changes a function level and thereby selectively changes the sensory output corresponding to each function initiator (106). Consequently, the number of sensory outputs is increased and thereby enables greater interaction between the user and the book.  It also encourages the user to creatively combine the sensory outputs to obtain a cognizable aggregate output.
Patent CA-2127780-C (CA)
Title: Method of analyzing signal quality
Inventor: CECIC DENNIS
IPC: G08B29/18
Filed: 1994-07-11
Granted: 1999-04-13
Abstract: A motion detecting system is disclosed where the signal from the transducer is analysed in a manner to distinguish between actual motion indicative of an intruder, typical noise expected for the area under supervision and the transducer and a signal which indicates a trouble condition (circuit failure, masking, or other trouble condition having a known signal signature).  The system samples the signal to provide a simplified representation of the actual signal.  The results of the sampling process for a given sample period allows good assessment of the actual conditions of the supervised area. In a preferred embodiment a host of experiment segments are compared within the sample period for change therebetween with the amount of change accumulated for the sample period.  This measure of change particularly at different magnitude levels provides a reliable basis for assessing alarm and trouble conditions.  This approach can also be combined with other approaches for recognizing trouble conditions and only producing a trouble output signal based on a combined analysis of the outputs of the various approaches.
Patent CA-2129081-C (CA)
Inventor: TOUSHIN KAZUMI
IPC: A01G13/00
Filed: 1994-07-28
Granted: 2000-04-25
Abstract: A water-repellent earth material having grains formed with silicone coating; is made by mixing the earth material with an emulsion of silicone oil in water and drying. The earth material may be selected from the group consisting of soil, sand, gravel, pebbles, silicon-containing combustion ash of household refuses and silicon-containing combustion ash of industrial refuses. The earth material may be used to form a water-repellent ground surface layer, a water-repellant underground layer or a water-repellent enclosure for various purposes.
Patent CA-2129930-C (CA)
Title: Production of granular ammonium sulphate using stripped zinc electrolyte as a granulating aid
Inventor: CROSS JAMES B
IPC: C05C3/00
Filed: 1994-08-11
Granted: 1997-04-22
Abstract: A process is disclosed for the production of free-flowing, non-caking, stable granular ammonium sulphate containing micronutrients comprising granulating ammonium sulphate in the presence of a granulating aid which is stripped zinc electrolyte derived from an electrolytic zinc operation.     An  effective  amount  of  stripped  zinc electrolyte is used to yield a final ammonium sulphate product containing about 0.4% to 1.3% by weight zinc, up to about 0.16% by weight magnesium and up to about 0.09% by weight manganese.  The stripped zinc electrolyte, typically containing 20-25 g/L zinc,  2-4 g/L magnesium,  1-2 g/L manganese and sulphuric acid, may be added during reaction of ammonia and sulphuric acid prior to granulation.   A free-flowing, non-caking, hard, ammonium sulphate granular fertilizer having a pH of about 2 to 7.5 as 10% solution, containing by weight 0.4% to 1.3% by weight zinc, up to about 0.16% by weight magnesium and up to about 0.09% by weight manganese is produced.
Patent CA-2136567-C (CA)
Title: Apparatus and method for remote monitoring of video signals
Inventor: MAYCOCK JOHN CHARLES
IPC: H04H20/12
Filed: 1994-11-24
Granted: 2001-01-30
Abstract: Apparatus for and a method of monitoring the transmission of an analog video signal through a video signal transmission channel, e.g. a fibre optic cable from a headend capturing the analog video signal at a location remote from the headend and select a signal channel from the captured video signal. The selected signal channel is digitized and serialized as a digital signal and the digital signal is transmitted as an optical signal through an optical fibre cable to a monitoring location, where the digital signal is converted to an analog video signal which is displayed on a video monitor.
Patent CA-2137968-C (CA)
Inventor: FUJINO KEIJIROU
IPC: G11B19/28
Filed: 1994-12-13
Granted: 1998-04-07
Abstract: The present invention provides an information storage and retrieval device in which the generation of excess heat is suppressed by a configuration by which outputs from an electrical power control circuit to a drive means are controlled by turning switching elements on and off.    An information storage and retrieval device comprising a card conveyor mount for supporting and conveying a card-type information storage medium; a drive means having a linear motor, for reciprocatingly driving the card conveyor mount; an electrical power control circuit having switching elements, for providing power to the linear motor; speed detection means and for detecting the speed at which the card conveyor mount is moving; a speed command means for calculating an indicated speed corresponding to an output from the speed detection means, shaping a speed command therefrom, and sending the command to the electrical power control circuit;  and an optical head for irradiating a laser beam onto the information storage medium; whereby information is written to the information storage medium by the optical head irradiating the  laser beam onto the information  storage  medium,  and  information  is  read therefrom by detecting laser light reflected from the information storage medium; the information storage and retrieval device further comprising a comparison means having a pair of comparators and having identical threshold values of different polarities,  for comparing the speed command with each of the threshold values and shaping a pair of outputs that are on during the period that the command exceeds the threshold values;  wherein powering currents of the linear motor are controlled and thus drive control  of  the  card  conveyor  mount  is  enabled  by controlling switching elements in the electrical power control circuit to turn on and off in accordance with the outputs  from the comparison means.  Alternatively,  the information storage and retrieval device causes the optical head to move instead of the card.
Patent CA-2139219-C (CA)
Title: Resins and compositions for the manufacture of high modulus heat-resistant materials and mouled articles produced from such materials
Inventor: YANG YEONG-SHOW
IPC: C08J3/00
Filed: 1993-06-24
Granted: 2005-09-06
Abstract: Composite material produced from a first polyisocyanate-based mixture, from a second mixture comprising at least one ethylenically unsaturated monomer, at least one polyoxyalkylene polyamine and one ethylenically unsaturated polymer, and from a cross-linking catalyst. The first mixture comprises at least one polyisocyanate and at least one catalyst for reacting isocyanate functions with the ethylenically unsaturated polymer of the second mixture, and the second mixture comprises, for 100 parts by weight: 25 to 50 parts by weight of at least one ethylenically unsaturated monomer, 50 to 75 parts by weight of an unsaturated amine polyester resin which is the product of the reaction between (a) an unsaturated polyol polyester prepolymer and (b) a polyoxyalkylene amine, the weight ratio (a)/(b) being at least equal to 0.8, and as much as 4 parts by weight of at least one cross-linking catalyst. Application in the production of high modulus heat-resistant moulded articles.
Patent CA-2139498-C (CA)
Inventor: KILLPATRICK JOSEPH E
IPC: H01S3/083
Filed: 1993-08-18
Granted: 2003-05-13
Abstract: A laser gyro start up apparatus and method that safely and quickly starts up a laser gyro. A microprocessor sequences the mechanical and electrical systems of the laser gyro such that the gyro is started up quickly in the proper sequence. The micropro-cessor also executes tests on the gyro and provides a health signal in the timing sequence. The start up apparatus starts the laser block dither, laser discharge and acquires the path length controllers.  Optical start up operations may be performed including the calibration of volts per mode.
Patent CA-2139790-C (CA)
Title: Tablets with thioctic acid of specific grain size
Inventor: SARLIKIOTIS WERNER
IPC: A61K31/385
Filed: 1995-01-09
Granted: 2004-08-17
Abstract: The invention relates to a drug formulation in the form of tablets containing thioctic acid (.alpha.-lipoic acid) with an active ingredient content between 45% by weight and 99.9% by weight. The invention is characterized in that 20% to 100% of the active ingredient used has a particle size exceeding 100 µm, particularly between 100 µm and 710 µm, preferably 30% to 80% a particle size between 200 µm and 710 µm. The invention allows the manufacture of tablets with a high concentration of thioctic acid and hence a small size compared to conventional tablets containing this drug.
Patent CA-2144817-C (CA)
Inventor: DAVIS JAMES A
IPC: C09J7/10
Filed: 1995-03-16
Granted: 2002-03-12
Abstract: Flat rubber sheets are joined together at their primed surfaces utilizing an adhesive tape composition which features at least one EPDM rubber and will provide a long-term, water-tight barrier. The adhesive tape composition is a solventless, preformed, tacky composition comprising a) at least one crosslinkable EPDM rubber, b) a filler, either of the reinforcing or semi-reinforcing variety, c) one or more compatible tackifiers, d) a softener, and lastly, e) a cure system for the rubbery polymer. The tape composition itself has excellent ozone, moisture, weathering and heat aging resistance as well as superior low temperature properties.
Patent CA-2146127-C (CA)
Inventor: DESANTIS LOUIS JR
IPC: A61P27/02
Filed: 1993-10-12
Granted: 2000-06-13
Abstract: Des combinaisons d'au moins un dérivé de clonidine et d'au moins une prostaglandine sont utilisées pour traiter le glaucome et l'hypertension oculaire, sans l'apparition de certains des effets secondaires généralement associés à l'administration topique de prostaglandine.
Patent CA-2147108-C (CA)
Inventor: STANESCU MIRCEA STEFAN
IPC: F27B9/06
Filed: 1995-04-13
Granted: 2003-06-10
Abstract: Apparatus and method of induction heating wherein the heating operation is conducted in a low oxygen-containing atmosphere by the introduction of an inert gas alone or in combination with an oxygen-reacting gas through the ends of the induction coil housing or through removable covers enclosing the spaces between spaced apart housings.
Patent CA-2149568-C (CA)
Title: User interface apparatus for electronic operation strip control system
Inventor: KUSUI YOICHI
IPC: G01S13/91
Filed: 1995-05-17
Granted: 1998-06-23
Abstract: In a user interface apparatus for an electronic operation strip control system for supporting respective control services by presenting electronic operation strips to a plurality of controllers who carry out terminal radar control services and entering control services previously distributed and associated with each other, in the field of terminal control and en-route control, an information display device and an instruction input device are provided for each of the controller who carrying out respective control services distributed as stated above, and operation strip control information items necessary for respective distributed control services are obtained by an information obtain section.  Then, the operation strip control information items thus obtained are inputted into information processing section, and are edited and processed in correspondence with the distributed control services and in accordance with contents of instructions from an instruction input device provided for each control seat.  Thereafter, the operation strip control information items obtained by the information processing section are displayed on an information display device of a corresponding control seat by the information output section, in accordance with instructions from the instruction input device provided for each control seat, and simultaneously, operation strip control information items of related control services including operation strip control information items of the other control services are displayed on the same screen.  It is therefore possible to reduce tasks as loads to terminal and en-route controllers, to supply instructions more accurately and rapidly, and to enable visual communication between pilots and controllers.
Patent CA-2154365-C (CA)
Title: Improved hydraulic oil
Inventor: JUNGA ANTHONY G
IPC: C10M161/00
Filed: 1993-12-28
Granted: 1999-08-31
Abstract: An unproved anti-wear, high pressure hydraulic oil which contains essentially no zinc or phosphorous is described. The hydraulic oil protects against corrosion and oxidation as well as provides anti-wear, and-weld, and demulsibility properties. This improved hydraulic oil contains (1) petroleum hydrocarbon oil; (2) esters of dibasic and monobasic acids; (3) butylated phenol; (4) phenol; (5) sulfurized fatty oil; (6) fatty acid; and (7) sulfur scavenger. This hydraulic oil has a reduced tendency towards sludge formation and has, therefore, an increased lifetime. This hydraulic oil can be used in applications requiring good boundary lubrication and minimal sludge formation. It is especially useful in high pressure hydraulic systems and pumps.
Patent CA-2165621-C (CA)
Inventor: BROWNE JOHN
IPC: G09F13/20
Filed: 1995-12-19
Granted: 1999-03-30
Abstract: An array if display elements are driven between ON and OFF positions where an element bright side is or is not displayed in the viewing direction by a magnetic field individual to each element.  A Hall effect switch is located in each field and used to control a circuit in accord with the field polarity.  The circuit may be used to provide lights which augment the appearance of an element in a viewing direction.  A power control circuit using a phase control and a clipper is used to power the lights and the Hall element.
Patent CA-2165756-C (CA)
Title: Process for the preparation of trialkyl ester derivatives
Inventor: PFAMMATTER ELMAR
IPC: C07C69/63
Filed: 1995-12-20
Granted: 2006-10-03
Abstract: A novel process is described for the preparation of trialkyl ester derivatives of the general formula: (See Formula I) wherein X is chlorine, bromine, iodine, tosyloxy or mesyloxy and R is a C1 -C6 - alkyl group. According to this process, a trialkyl methanetricarboxylate of the general formula: (See Formula II) wherein R has the above meaning, is converted to the end product of formula I  by reaction with a disubstituted ethane of the general formula:   (See Formula III) in which the two substituents X are identical or different and have the meaning given above, in the presence of an alkaline earth metal carbonate or alkali metal carbonate.
Patent CA-2166912-C (CA)
Title: Apparatus and process for heating fuel
Inventor: HURNER ERWIN E
IPC: F02M31/125
Filed: 1996-01-10
Granted: 2001-04-10
Abstract: A fuel heating device and process is provided that allows for easier cold-starting of diesel engines when the outside temperature is -10° F (minus ten) or less. A 5 Watt heating element is used so that heat dissipates to the outside environment at a rate that prevents the fuel from overheating and, possibly, exploding by keeping the temperature of the fuel less than or equal to about 100°F.
Patent CA-2167636-C (CA)
Title: Incremental route calculation
Inventor: LIAW JEFF JYH-MIN
IPC: G09B29/00
Filed: 1996-01-19
Granted: 2000-10-10
Abstract: Method and apparatus for determining a route from a source location to a final destination using a vehicle navigation system having a map database.  At least one intermediate destination is determined from the map database, each intermediate destination being at the other end of an intermediate route from the source location.  A cost value is calculated for each intermediate destination.  A best intermediate destination is selected from the at least one intermediate destination, the cost value corresponding to the best intermediate destination being lower than the cost values corresponding to any other intermediate destinations.  The intermediate route corresponding to the best intermediate destination is then communicated to the user of the vehicle navigation system while a remainder route to the final destination is determined.
Patent CA-2167813-C (CA)
Title: Determination de la resistance de materiaux en feuille par essai aux ultrasons
Inventor: ALLAN RUSSELL J
IPC: G01N29/07
Filed: 1994-10-03
Granted: 2005-03-29
Abstract: L'invention se rapporte à un procédé de détermination de la résistance ainsi que des propriétés mécaniques relatives du papier et de produits similaires, à la fois en direct et en différé, utilisant un système de transmission et de réception à ondes à fréquence de balayage ultrasonique continue. L'invention se rapporte également à un appareil destiné à mesurer la résistance ainsi que les propriétés mécaniques relatives du papier et de produits similaires. Cet appareil comprend un moyen (9) générateur de signaux, un moyen (11) d'essai d'échantillons consistant en un moyen de transmission (11), en un moyen de réception (6) ainsi qu'en un moyen (10) servant d'analyse des résultats reçus.
Patent CA-2179265-C (CA)
Inventor: FREDJ ABDENNACEUR
IPC: C11D3/00
Filed: 1995-01-13
Granted: 2000-02-22
Abstract: A dye transfer inhibiting composition comprising a mixture of polyamine N-oxide polymers having a low and high oxidation degree, said polyamine N-oxide polymers containing units having structural formula (I), wherein P is a polymerisable unit, whereto the N-O group can be attached to or wherein the N-O group forms part of the polymerisable unit. A is (a), (b), (c), -O-, -S-, (d); x is 0 or 1; R are aliphatic, ethoxylated, aliphatic, aromatic, heterocyclic or alicyclic groups whereto the nitrogen of the N-O group can be attached or wherein the nitrogen of the N-O group is part of these groups.
Patent CA-2182168-C (CA)
Title: Process for treating solid waste containing volatilizable inorganic contaminants
Inventor: KIRK DONALD P
IPC: B09C1/08
Filed: 1996-07-26
Granted: 2005-10-18
Abstract: A process for the removal of volatilizable inorganic contaminants from solid waste is provided. The process comprises the steps of: (a) providing solid waste containing volatilizable inorganic contaminants; (b) heating the waste to a temperature sufficiently high for the volatilization of the inorganic contaminants and sufficiently low so as to prevent slag formation of the solid waste, thereby producing a contaminant-rich vapor phase and a contaminant-poor solid phase; and (c) separating the solid phase and the vapor phase.
Patent CA-2186213-C (CA)
Inventor: COLLING RONALD W
IPC: B23K9/32
Filed: 1996-09-23
Granted: 2001-03-20
Abstract: A quick release mig gun tip comprises a contact tip having an exterior frusto-conical surface and external threads, and a gas diffuser having an internal frusto-conical surface and internal threads.  The threads are preferably stub acme threads.          The contact tip is assembled to the gas diffuser by engaging their threads until the frusto-conical surfaces mate.  Large currents can be conducted through the frusto-conical surfaces and the threads without causing excessive resistance heating.          The contact tip threads are designed so that assembly and release of the contact tip requires only one turn relative to the gas diffuser.
Patent CA-2192891-C (CA)
Title: Plasma cutting or arc welding power supply with phase staggered secondary switchers
Inventor: REYNOLDS JON O
IPC: H02M3/158
Filed: 1996-12-13
Granted: 2000-02-22
Abstract: A power supply, such as a plasma cutting power supply or a welding power supply, that provides an output to a pair of output terminals is disclosed.  The power supply includes a source of voltage and a plurality of choppers. The choppers are connected in parallel between the voltage source output terminals.  A controller controls the choppers so that they are out-of-phase with respect to each of the other of the plurality of choppers.  The choppers preferably include a freewheeling diode, an inductor and a switch.  The number of choppers is approximately equal to the ratio of the open circuit voltage to the output load voltage.
Patent CA-2195950-C (CA)
Inventor: CLEMMINGS JOHN F
IPC: A23G9/04
Filed: 1996-05-20
Granted: 2001-12-11
Abstract: The present invention includes a method for making a frozen composition for storage. The method does not require a hardening step prior to storage. The method includes preparing a mixture of ingredients that include water and adding an anti-freeze protein to the mixture of ingredients.
Patent CA-2196440-C (CA)
Title: Imide and pyrrolidone grease thickeners with terephthalate complexing agent
Inventor: ANDREW DAVID L
IPC: C10M117/00
Filed: 1997-01-30
Granted: 2003-06-10
Abstract: A grease composition comprises an effective amount of a lubricating oil containing an imide or pyrrolidone thickening agent or an imide or pyrrolidone thickening agent comprising a metal salt of a carboxylic acid in combination with a bimetal phthalate complexing agent, such as dilithium terephthalate. The presence of the complexing agent results in a grease having properties superior to that of a similar grease without the complexing agent. Preferred complexing agents are dimetal terephthalates in which the metal is an alkali or alkaline earth metal and is the same metal as is present in the thickener. An example is a combination of a calcium or lithium salt of the reaction productof trimellitic anhydride with a hydrogenated rapeseed amine and a dilithium terephthalate complexing agent.