baber/WOPTO huggingface dataset:
Patent CA-2038429-C (CA)
Title: Rodbaffle heat exchanger
Inventor: GENTRY CECIL C
IPC: F28F9/013
Filed: 1991-03-18
Granted: 1995-04-11
Abstract: The present invention relates to the use of a plurality of separate, individual acoustic resonance detuning plates which may be retrofitted in existing rodbaffle heat exchangers, or incorporated during the construction of new rodbaffle heat exchangers. In the preferred embodiments, each separate detuning plate may comprise a sheet of metal which extends axially through one section of the heat exchanger and extends across a chord of the cylindrical exchanger. The invention is useful in preventing undesirable acoustical vibrations from occurring in such heat exchangers.
Patent CA-2040557-C (CA)
Inventor: MCFARLANE ROSS A
IPC: H01S3/094
Filed: 1991-04-16
Granted: 1995-01-24
Abstract: A full color upconversion laser pumped by a single wavelength infrared laser source is disclosed.  The pump energy excites a rare earth doped crystal and can simulta-neously lead to laser emission at several wavelengths.  The laser includes a crystal of  YLiF4:Er 5% fabricated in a monolithic structure which incorporates the laser mirrors as dielectric coatings on spherical surfaces of the crystal rod; the mirrors are optically reflecting at one or more of the desired output wavelengths.  The laser rod is mounted in a helium cryostat that permits the operating temperature to be varied between 15 and 120°K. The pump energy is supplied through one of the mirrors specifically designed to be simultaneously highly reflecting at the laser wave-length and highly transmitting at the pump wavelength. To achieve optimum efficiency a lens is used in the pump path to focus the pump beam in such a manner as to provide a match of the laser mode size and pumped region of the crystal.
Patent CA-2041202-C (CA)
Title: Digital communications network with unlimited channel expandability
Inventor: NGUYEN QUOC
IPC: H04Q11/06
Filed: 1991-04-30
Granted: 1996-10-15
Abstract: A digital communication network (10) with a TSnT configuration defined by a first, or input, time stage (12), a second, or output, time stage (14) and a preselected number of space stages (16, 22, 24) interconnected between the time stages 12, 14) that introduce time delays which are compensated for by means for time shifting the data in a shadow memory (32) relative to data in a regular memory (34).  On-line expansion is accomplished by operating the network (10)  from one of the regular memory and the shadow memory (32) during the expansion, introducing the amount of compensation required by the expansion and then shifting operation over to the other memory.  The selection between memories (34, 32) is achieved by means of a tristate device (38).
Patent CA-2047359-C (CA)
Title: Chromatographic separation of zirconium isotopes with reduced waste liquor
Inventor: SNYDER THOMAS STEPHEN
IPC: B01D59/30
Filed: 1991-07-18
Granted: 2001-09-18
Abstract: The isotopes of zirconium can be partially or completely separated by loading an aqueous solution of an ionic compound of zirconium onto a cationic exchange resin with pentavalent phosphorus derived active groups which serves as the stationary phase of a chromatograph, eluting the compound with an aqueous acid and collecting distinct elution volumes representative of each isotope.     In a preferred embodiment, the eluent is a strong mineral acid, such as hydrochloric acid and the chromatograph is of a type, such as a continuous annular chromatograph, that it can be operated in a continuous, steady state manner.
Patent CA-2048338-C (CA)
Title: Automatic electric code rewinding apparatus with contacts for supplying electric power
Inventor: JI HEON P
IPC: H02G11/02
Filed: 1991-08-01
Granted: 1995-03-14
Abstract: An  automatic electric  code  rewinding  apparatus  with contacts  for  supplying  electric  power.    The  apparatus comprises a  terminal  body,  a pair  of  bow-shaped  contact terminals snapping at an inner surface of said terminal body and spaced apart from each other, a winding wheel provided with an opening adapted to receive and support said terminal body, a housing provided with a shaft and inserted into said winding  wheel  in  order  to  support  said  winding  wheel rotatably, an annular body inserted onto said shaft of the housing and divided into two parts by means of a partition member integrally formed with said annular body, and a pair of conduction rings inserted onto said parts of the annular body, respectively, thereby providing said contacts by contacting of said   contact  terminals  with   said   conduction   rings, respectively.  The present invention provides an automatic electric code rewinding apparatus with contacts in which the short between the polar charging parts of the annular body 28, which may occur due to the exchanging of the polar brass powder, can be efficiently prevented as a result of division of the annular body into the two polar parts.
Patent CA-2049578-C (CA)
Inventor: TAYLOR WILLIAM H
IPC: G01S17/931
Filed: 1991-08-19
Granted: 2000-06-06
Abstract: A collision avoidance system particularly suited for automotive applications includes an electro-optical rangefinder scanner, retroreflectors on target vehicles, and a processing unit. The rangefinder supplies data on the range and angle of target vehicles to the processor, which monitors each target vehicle's position, speed and acceleration and constantly determines and updates target range, angle, velocity, acceleration and predicted separation distances. A warning signal or evasive manuever instructions are issued if the predicted separation at the time of intercept is below a minimum acceptable value.
Patent CA-2049809-C (CA)
Title: Method of surface hardening orthopaedic implant devices
Inventor: SHETTY H RAVINDRANATH
IPC: A61F2/00
Filed: 1991-08-23
Granted: 2001-02-06
Abstract: A method of surface hardening titanium orthopedic implant devices, and a titanium orthopedic implant device prepared by the disclosed method. An orthopedic implant device made of pure titanium or a titanium alloy, such as Ti-6Al-4V (ELI) is exposed to molecular nitrogen gas at a process temperature and for a process time duration sufficient to enhance surface hardness and wear resistance properties, without the formation of a measurable TiN layer that tends to increase surface roughness and diminish wear resistance properties. The process temperature is in the range of 750°F, to 1300°F., preferably about 1100°F, and the process time duration at the preferred process temperature is approximately 8 hours. The hardened surface of the titanium implant occurs primarily due to solid solution hardening of the titanium with nitrogen by dissolution.
Patent CA-2050260-C (CA)
Inventor: KUMMER JOSEPH TALBOT
IPC: B01D53/32
Filed: 1991-08-29
Granted: 1999-11-30
Abstract: A porous or nonporous hydrophilic, insoluble electrolyte allows a reducing condition to be produced at a negative electrode from a low content of moisture in the electrolyte and reduces oxidants by catalyzed production of water. A constant current with a low voltage is applied between a positive catalyzed electrode and a negative catalyzed electrode, each separated by a hydrophilic, insoluble, cationic exchange electrolyte therebetween containing moisture. The cell may consist of corrugated sheets of electrolyte, opposite sides of which may carry the catalytic electrode material; air to be treated is moved across the negative electrode only.
Patent CA-2052572-C (CA)
Title: Silicon emulsion preservative and protective coatings for rubber and po lymer
Inventor: MEYER KENNETH L
IPC: C09G1/04
Filed: 1991-10-01
Granted: 2000-05-09
Abstract: An aqueous polymer preservative and protectant composition containing a silicone emulsion, an aminofunctional silicone emulsion, a film forming thickening agent and a polyol.
Patent CA-2053422-C (CA)
Title: Hollow fiber filter module
Inventor: HAMANAKA KATSUHIKO
IPC: B01D65/00
Filed: 1991-10-15
Granted: 1998-10-13
Abstract: Disclosed is a hollow fiber filter module comprising a cylindrical casing having a liquid introducing nozzle at least at one end portion thereof and having a bundle of hollow fibers disposed in the casing, and wherein one end portion of the bundle is enclosed by a hollow, liquid flow control member, and the liquid introducing nozzle has a specific unique structure in which the inlet opening has a larger diameter than that of the hollow of the nozzle at any portion thereof.  This hollow fiber filter module can advantageously be used in the so-called external pressure type filtration on a large scale.  By the use of this filter module, the external pressure type filtration of a liquid can advantageously be stably performed for a prolonged period of time with a high filtration efficiency.
Patent CA-2061280-C (CA)
Title: Optical tracking system
Inventor: BLAIS FRANCOIS
IPC: G01S17/06
Filed: 1992-02-14
Granted: 1995-09-26
Abstract: An optical system for tracking a target scans an optical beam across the target in a Lissajous pattern.  The pattern has at least one portion that extends across the target. Return signals reflected from the target are used to calculate the range (and, if desired, also the intensity) of each measured point on the target (and beyond the target if some portions of the pattern miss the target), and to calculate the deviation of a reference location on the pattern, e.g. its center, from a selected location of the target.  This deviation is used to correct the scan to move the reference location on the pattern towards the selected location on the target, thus tracking the target.  The amplitude of the pattern can be changed to adjust the pattern on the target or to search for a target.  By virtue of the range data obtainable for points on the target and on edges of the target, the system can also determine other features, such as the shape, profile, identity and attitude of the target.
Patent CA-2062978-C (CA)
Title: Self-cleaning filter for fluid distribution systems
Inventor: THOMPSON JAMES E
IPC: B01D29/35
Filed: 1991-05-23
Granted: 2000-09-05
Abstract: A self cleaning filter assembly for removing suspended matter from fluids, primarily utilized in irrigation or similar distribution systems: The filter assembly comprises a container (11) having at least one inlet aperture (32) and at least one outlet aperture (44) therethrough and a filter screen (18); comprising a hollow perforated body, inserted within the container (11). One end (38) of a conduit (36) is connected in fluid flow relationship to the inlet aperture (32) of the container (11) while the other and (40) of the conduit (36) terminates within the hollow body comprising the filter screen (18). The outlet aperture (44) is so located that the fluid entering the container (11) through the fluid inlet aperture (32) and the conduit (36) must pass through the filter screen (18) before exiting the container (11) through the outlet aperture (44).
Patent CA-2063134-C (CA)
Title: Method for regulating the temperature of a medium by means of a temperature control loop, and a temperature-regulating device for implementing the method
Inventor: BENDTSEN CHRISTIAN
IPC: G05D23/24
Filed: 1992-03-16
Granted: 1997-04-01
Abstract: A method for regulating the temperature of a medium and a temperature-regulating device for implementing that method makes use of a temperature control loop which comprises a coolant circuit with a compressor arrangement (1), makes use of or contains a temperature detector (7) for generating a measuring signal representing the temperature actual value, a comparator (10) for comparing the measuring signal with the upper and lower limit (To, Tu) of a neutral zone extending on both sides of a temperature desired value, and a switch mechanism (9) by which an output stage of the compressor arrangement (1) is switched on or off by way of two time-delay elements (11, 12) when the measuring signal exceeds or falls below the neutral zone.   One of the time-delay elements (11) is actuated when the change in the measuring signal alters from falling to rising.   The other time-delay element (12) is actuated when the change in the measuring signal alters from rising to falling.   If the measuring signal exceeds the upper limit (To) beyond the running time of the one time-delay element (11), an output stage of the compressor arrangement is switched on, and if the measuring signal falls below the lower limit (Tu) beyond the running time of the other time-delay element (12), a compressor output stage is switched off.   In this manner, severe overswings are avoided and a stable control within narrow limits is achieved.
Patent CA-2066031-C (CA)
Inventor: GRAY MARY A
IPC: C07K16/30
Filed: 1990-09-24
Granted: 2001-02-27
Abstract: L'invention concerne des procédés de réduction de la rétention non ciblée de fractions actives associées à des immunoconjugués et leurs métabolites, et plus spécifiquement, de réduction de la rétention rénale de telles fractions actives. Des procédés de la présente invention consistent à administrer une quantité efficace d'une fraction de réduction non ciblée, telle que la lysine, en plus d'une quantité thérapeutiquement ou diagnostiquement efficace d'un immunoconjugué. La fraction de réduction non ciblée se localise dans les reins et inhibe la rétention rénale et la réabsorption de fractions actives associées à des immunoconjugués et leurs métabolites.
Patent CA-2066125-C (CA)
Inventor: GOLDMAN PAUL D
IPC: H05K1/11
Filed: 1992-04-15
Granted: 1997-03-25
Abstract: The use of a conductive reactive braze material, loaded in via holes of a diamond substrate and heated in a suitable temperature range, results in conductive vias with excellent adherence to the via hole in the diamond material.  Cracking of the diamond substrate, and loose or lost via elements, are minimized.  A form of the disclosure is directed to a method for producing a circuit board having a multiplicity of conductive vias.  A generally planar diamond substrate is provided.  A multiplicity of via holes are formed through the substrate.  The holes are loaded with a conductive reactive braze material.  The braze material and the substrate are heated to a temperature which causes the braze material to melt and to react with the inner surface of the via holes and bond thereto.  In an illustrated embodiment, the braze material comprises a conductive matrix component that includes at least one element selected from the group consisting of copper, silver, and gold, and a reactive component that includes at least one element selected from the group consisting of titanium, chromium, vanadium, zirconium, and hafnium.   Another form of the disclosure is directed to a circuit board in which conductive vias pass through a diamond substrate and form a compound with the substrate at the inner surface of the via holes to bond to said inner surface of the via holes.
Patent CA-2074987-C (CA)
Title: Plate wall trailer
Inventor: STAFFORD BRIAN K
IPC: B62D33/04
Filed: 1992-07-30
Granted: 2002-01-29
Abstract: An enclosed trailer for towing by an over the road truck is provided having increased internal width for a given external width. The side walls of the trailer are constructed from a series of vertically extending, spaced apart, rigid plates, preferably metallic plates, and metallic reinforcing members which have an inwardly projecting, vertically extending rib that is positioned between the adjacent edges of adjacent pairs of plates.      The reinforcing members are riveted or otherwise rigidly secured to the outside of a pair of plates. Furthermore, the plates and reinforcing members are also rigidly secured to vertically extending flanges of the longitudinally extending top and bottom beams which form the juncture between the side walls and the top wall, and the side walls and the bottom wall, respectively. Because all elements of the trailer side walls are rigidly joined to the top and bottom beams, the overall strength and rigidity of the trailer is increased.
Patent CA-2075022-C (CA)
Title: Communications resource assignment in a wireless telecommunications system
Inventor: AMITAY NOACH
IPC: H04L12/56
Filed: 1992-07-30
Granted: 1997-04-22
Abstract: Fast resoure assignments, especially needed in microcellular network architectures having many fast moving subscribers and high traffic volume, is provided through the use of a priority based resource assignment apparatus and procedure.  Part of the communication resources in a cellular network, for example, one carrier frequency and/or one time slot, or particular code division multipleaccess sequences are dedicated to the execution of the assignment procedure. Available communications resources are auctioned to cellular subscribers contending for resoures based upon a level of priority assignment to each contending subscriber. The priority level may be based on such things as the quality of service to which a customer subscribes or the particular needs of a subscriber at the time the subscriber is contending for resources, for example,the subscriber's request for resources may be prompted by a need to make a handoff.  The procedure involves an auction period when a determination is made regarding which of a group of contending subscribers has the highest priority level.  The procedure then enters a resource assignmentperiod where an available communications resource is actually assignment to the subscriber having the highest priority level.  The auction and assignment periods are then repeated for the remaining contending subscribers until there are no longer any contending subscribers or there are no longer any available resources.  Fast resource assignment could be used to increase system capacity and efficiency of spectrum utilization through the ability to perform speech activity resource sharing.
Patent CA-2075590-C (CA)
Title: Hydantoin derivatives
Inventor: KOENIG WOLFGANG
IPC: A61K31/415
Filed: 1992-08-07
Granted: 2003-01-07
Abstract: The invention relates to compounds of the formula I    in which R1 represents, for example, -(CH2)n-NH-X or -CH2-C6H4-NH-X, wherein n is an integer from 3 to 5 and X represents, for example, hydrogen or C1-C6-alkyl, R2 denotes hydrogen or C1-C6-alkyl, R3 denotes hydrogen or a phenyl radical, R4 denotes, for example, hydrogen and Y denotes, for example, -(CH2)m-CO-, wherein m represents an integer from 1 to 4. The compounds of the invention inhibit platelet aggregation, formation of metastases and binding of osteoclasts to the bone surfaces. They are therefore useful for the prevention of arteriosclerosis, thrombosis and osteoporosis and prophylactically against cancer.
Patent CA-2076231-C (CA)
Title: Engine and transaxle module
Inventor: TEAL RICHARD D
IPC: A01D34/64
Filed: 1992-06-10
Granted: 1994-10-04
Abstract: A horizontally extending plate-like member having a power source, transaxle and belt arrangement coupled thereto.  The member mounts the power source, transaxle, and belt arrangement  to a vehicle frame, and establishes a lever arm between first and second coupling means for transferring relatively small concentrated loads to the vehicle frame.  The power source, transaxle, belt arrangement and member can be removed from the vehicle frame for service as a single unit or module.
Patent CA-2077491-C (CA)
Title: Staged combustion of fuel or sludge to reduce nitrous oxide emission
Inventor: WILLIAMS ROBERT M
IPC: F23C99/00
Filed: 1992-09-03
Granted: 1997-06-24
Abstract: A system and apparatus is disclosed for delivering fuel to a furnace using an inert gas medium which has acquired moisture from the application of the furnace stack gas for drying the incoming fuel material during the reduction of the fuel to a desired size for combustion in the furnace.  The use of an oxygen deficient inert gases medium as a propellant to deliver the fuel to the furnace is augmented by supplying air to the furnace to establish a staged combustion environment in the furnace to avoid the generation of high levels of the pollutant nitrous oxide which is understood to be generated by high flame temperatures and with high oxygen and nitrogen concentrations.
Patent CA-2082174-C (CA)
Title: High doppler rate high altitude capability coherent pulsed doppler radar altimeter
Inventor: HAGER JAMES R
IPC: G01S13/50
Filed: 1992-06-24
Granted: 2002-05-28
Abstract: A pulse Doppler radar altimeter designed to resolve the ambiguous range problem associated with the use of a pulse repetition interval, which is less than the aircraft altitude, includes a radar transmitter configured to transmit first and second series of pulses where the first series has a pulse repetition interval slightly different from the pulse repetition interval of the second series. At a time when the first series is being transmitted, the receiver electronics including a range gate and a tracker searches for ground returns and positions the range gate in time coincidence with the detected ground return. Control then shifts so that the second series of pulses is transmitted and a determination is made whether overlap of the range gate with the ground return from the second series corresponds to the same altitude as when the first series was involved. If not, it is known that the detected range is ambiguous and the tracker continues repositioning the range gate (altitude) until an unambiguous range determination is made.
Patent CA-2083396-C (CA)
Inventor: BJURSELL GUNNAR
IPC: C07K14/00
Filed: 1991-05-30
Granted: 2006-09-19
Abstract: The present invention relates to new DNA sequences, to new proteins coded for by such DNA sequences, and to the use as further described below of such proteins. The invention also encompasses vectors, such as plasmid constructs, comprising such DNA sequences, being capable of expressing the desired enzyme. The invention also includes host organisms transfected with such constructs e.g. bacteria yeast, mammalian cells, and transgenic animals.  The invention also includes processes for the preparation of the novel products of the invention. The new proteins of the invention are related to an enzyme, known i.a. as human bile salt-stimulated lipase.
Patent CA-2087222-C (CA)
Title: Method and apparatus for installation of large conveyor belts
Inventor: KUZIK LARRY J
IPC: B65G21/00
Filed: 1993-01-13
Granted: 1996-03-26
Abstract: A method for deploying a belt on a large conveyor belt system which extends down slope.  A run of the belt is positioned at an upper position along the slope, and is engaged with a controllable brake which is configured to permit selective adjustment of the braking force which is exerted thereby on the belt.  The belt is then lowered along the conveyor belt system using the weight of the run, and the rate at which the run of belt advances is controlled by selectively adjusting the braking force which is exerted by the controllable brake.  The runs of belt may be lowered from adjacent high points in the conveyor belt system and spliced together where these meet in the valleys between the high points.  The controllable brake assembly may be made up of a plate which extends across the belt and an inflatable bladder which is positioned on top of the plate and beneath its support, so that as fluid pressure is selectively added to the inflatable bladder, this biases the plate against the belt so as to control the braking force which is exerted by the plate against the belt.
Patent CA-2090663-C (CA)
Title: Sonet overhead server
Inventor: NOSER FRANCIS G
IPC: H04J3/16
Filed: 1993-03-01
Granted: 1999-02-02
Abstract: A server combines a multiplexer/demultiplexer with a circuit switch to handle both high-speed overhead and data interfaced to the server through a cross-connect; multiple servers may be connected to the cross-connect in a star, mesh or ring network.