baber/WOPTO huggingface dataset:
Patent CA-2077497-C (CA)
Title: Method of introducing additives to fibrous products
Inventor: THIESSEN LEO K
IPC: C03C25/10
Filed: 1992-09-03
Granted: 2000-04-04
Abstract: A process for introducing additive particles to extruded fibers during production of the fibers. Particles are directed into a moving stream of fibers during or after the fiber attenuation process. The movement of the fibers intermingles the particles with the fibers prior to the intermingled material being collected on a moving support. If liquid binder is sprayed onto the fibers it is subsequently set in an oven to bind the fibers and the particles to each other. The fibers preferably are mineral fibers and the particles may be fibers or particles introduced for a variety of reasons, such as to increase the strength of the product or to serve as extenders or fillers.
Patent CA-2077842-C (CA)
Title: Gas turbine engine case counterflow thermal control
Inventor: PLEMMONS LARRY WAYNE
IPC: F02C7/18
Filed: 1992-09-09
Granted: 2002-02-12
Abstract: A thermal control apparatus is provided for gas turbine engine cases and particularly for thermal control of clearances between turbine rotors and surrounding shrouds. Thermal control of an annular case section or ring is provided by counterflowing two heat transfer fluid flowpaths in heat transfer communication with the section of engine casing. The flowpaths may be in parallel or series such that there is substantially no circumferential gradient in the mass flowrate weighted average temperature of the heat transfer fluid supplied by the two counterflowing fluid flowpaths. One embodiment provides forward and aft rings cooled by three spray tubes in each of two 180° sectors whereby the forward and aft spray tubes flow thermal control air flowing in one circumferential direction and the middle spray tubes flows thermal control air in an opposite circumferential direction.
Patent CA-2078246-C (CA)
Title: Improved method for secure access control
Inventor: WEBER ROY PHILIP
IPC: H04M3/42
Filed: 1992-09-15
Granted: 1998-02-03
Abstract: A requester making a request for access to a destination is prompted to supply additional authentication information, beyond that which may be supplied by the requester in an attempt to meet a first level of security processing specified by the nature of the request itself, only if it is determined from a predetermined set of attributes of the particular access request that additional security processing is necessary before access can be granted to the destination.
Patent CA-2088906-C (CA)
Title: Device for the electrically insulated attachment of a metallic probe electrode in the opening of a housing
Inventor: ALZNAUER MIROSLAW
IPC: G01F23/26
Filed: 1992-06-05
Granted: 1997-11-25
Abstract: A device is proposed for the electrically insulated attachment of a metal probe electrode in the opening of a housing, preferably a measuring probe for measuring the filling status in the opening of a probe head housing. The device has a metal rod electrode and a metal guard electrode at which two sealing cones are arranged which are spatially separated from each other which, with the inclusion of insulating layers, electrically insulate and close off in a pressure-sealed manner the rod electrode with respect to the guard electrode and both with respect to the housing in the opening of which they are attached. Both electrodes are connected with an electronic circuit in an electrically insulated manner.
Patent CA-2095235-C (CA)
Title: A diagnostic assay for lyme disease
Inventor: CALLISTER STEVEN M
IPC: C12Q1/06
Filed: 1991-10-31
Granted: 2007-06-05
Abstract: A method of performing an assay to determine whether a patient has been exposed to or infected by Borrelia burgdorferi is disclosed which comprises collecting serum from the patient; preparing a sample mixture comprising a portion of the patient's serum and an inoculum of viable Borrelia burgdorferi organisms; incubating the sample mixture; determining the number of vi-able organisms remaining in the sample mixture after incubation; and comparing the number with the quantity of viable organ-isms remaining in a control. An assay kit is also disclosed which is useful for determining whether a patient has been exposed to or infected by Borrelia bargdorferi. The kit contains reagents necessary to practice the assay method disclosed herein. In its broadest form, the kit comprises an inoculum of viable borrelia burgdorferi organisms. The kit can also contain an aliquot of nor-mal serum, an aliquot of BSK medium and/or an aliquot of complement, Other reagents, tubes and other materials can also be included in the kits.
Patent CA-2099143-C (CA)
Inventor: BARTH JAMES T
IPC: F24C3/00
Filed: 1993-06-25
Granted: 1998-10-13
Abstract: An inexpensive and easily maintained gas burner assembly achieves the manufacturing and maintenance advantages of the conventional sand pan burner design in addition to the heat output and fuel efficiency of more complex burner designs.  The invention comprises a tray having a bottom wall and sidewalls defining an interior and an open top.  A cover channel having a midsection segment and at least two downwardly depending flanges is adapted to fit in the interior of the tray to form a mixing chamber between the cover channel and the tray. The downwardly depending flanges are spaced away from the sidewalls of the tray to form gaps suitable for filling with a noncombustible granular substance, such as sand or crushed pumice stone.  The cover channel additionally comprises at least one projection extending above the top segment and defining at least one burner port.  The projection is preferably a longitudinal ridge defining a plurality of burner ports.
Patent CA-2103477-C (CA)
Inventor: IGAUE TAKAMITSU
IPC: D04H1/542
Filed: 1993-11-19
Granted: 1998-07-14
Abstract: Here is disclosed a topsheet for use in body fluid absorptive goods so improved to achieve an effective shape-stabilization of liquid passages formed in the topsheet.   To this end,  a topsheet 2 comprises an upper sheet 7 having a skin-contacting area 14 and liquid passages  13  and a lower sheet 8 underlying the upper sheet 7.   The lower sheet 8 is welded to the upper sheet 7 around lower openings 12 of the respective liquid passages 13 so as to restrict deformation of these passages which would otherwise possibly occur.
Patent CA-2106403-C (CA)
Title: Methode et dispositif de nettoyage de tuyauteries sous-marines
Inventor: RUFOLO PAUL G
IPC: B08B9/043
Filed: 1992-12-04
Granted: 1999-06-22
Abstract: Un organe cylindrique à lames (12) pourvu d'ajutages (58) d'injection de fluide sous haute pression coupe et balaie des matières étrangères aquatiques (108) de la surface intérieure de canalisations sous-marines (60). Selon ce procédé d'enlèvement de matières étrangères, on tire le dispositif animé d'un mouvement alternatif à travers les canalisations et on injecte de l'air sous haute pression dans une zone de confinement (134) afin d'expulser jusqu'à la surface toutes matières étrangères enlevées.
Patent CA-2108938-C (CA)
Inventor: HARRIS WILLIAM J
IPC: C08G73/06
Filed: 1993-10-21
Granted: 2003-12-16
Abstract: Block copolymers may contain polybenzazole blocks and blocks of polybenzoxazinone polymer or polyoxadiazole polymer. The block copolymers may be coagulated from isotropic dopes to form shaped articles or granular compositions. The granular compositions may be compression molded to form molded articles. The block copolymers may be molded at high temperatures without substantial phase separation, and the polybenzazole polymer provides support to improve the tensile propoerties of the polymer.
Patent CA-2110274-C (CA)
Title: Ensemble d'alimentation en gaz industriel d'un appareil utilisateur portable
Inventor: BRUGEROLLE JEAN-RENAUD
IPC: F17C7/00
Filed: 1993-03-29
Granted: 2004-06-01
Abstract: L'ensemble comprend une capacité intermédiaire de gaz moyenne pression, dans un boîtier transportable, avantageusement associé à l'appareil utilisateur et sélectivement raccordable à une source de gaz haute pression par couplage avec un boîtier de chargement via un système de raccordement rapide. Application notamment aux appareils de soudage portables.
Patent CA-2111692-C (CA)
Title: Machine tool control system
Inventor: REHSE DENIS
IPC: G05B19/18
Filed: 1992-06-17
Granted: 1996-11-26
Abstract: A machine tool control system in which a programmable controller operates a machine to carry out a plurality of program-mable functions. The controller includes a plurality of processor means, a first one of the processor means capable of pre-pro-cessing and forwarding control information to a second of said processor means, wherein said second processor means provides control information to control machine movement. Advantageously, the second processor means operates on a periodic time based interrupt method which greatly increases the accuracy of the machine.
Patent CA-2115425-C (CA)
Title: Process for making granular automatic dishwashing detergent
Inventor: RALEIGH MARY E
IPC: C11D11/00
Filed: 1992-08-11
Granted: 1997-12-16
Abstract: A process for preparing a granular automatic dishwashing detergent composition with increased solubility which comprises incorporating low foaming noionic surfactant with a melting point between about 77.degree.F (25.degree.C) and about 140.degree.F (60.degree.C) into alkali metal silicate-particles, and admixing the silicate with substantially silicate free base granules.
Patent CA-2120903-C (CA)
Inventor: LARUE ALBERT DANIEL
IPC: F23C99/00
Filed: 1994-04-08
Granted: 1996-09-24
Abstract: A burner and port combination for the combustion of a pulverized coal fuel plus air mixture comprises a throat and a burner nozzle positioned at a central area of the throat. The burner nozzle has an inlet for receiving the pulverized coal fuel plus air mixture and an outlet for discharging the pulverized coal fuel plus air mixture.  A secondary air tube is positioned laterally adjacent the burner nozzle at each lateral side of the nozzle in the throat for providing a first portion of a secondary air to the throat.   A plurality of vanes are positioned at an upper portion of the throat above the burner nozzle and the tubes and at a lower portion of the throat below the burner nozzle tubes for deflecting a second portion of the secondary air from the burner nozzle.
Patent CA-2125969-C (CA)
Title: Spread-spectrum data publishing system
Inventor: SMITH DOUGLAS G
IPC: H04J13/00
Filed: 1992-12-15
Granted: 2000-06-06
Abstract: A system for publishing data (409) on shared broadcast channels using spread-spectrum techniques, which may comprise a spread-spectrum encoder (405) capable of receiving data and placing it in a spread-spectrum signal format (407) and a transmitter (406) operating on a shared communication channel or frequency band, such as might be allocated to terrestrial point-to-point or broadcast communications. The shared communication channel may comprise a cellular system, in which data (409) may be transmitted (406) using spread-spectrum techniques using the transmitters (406) and repeaters of the cellular system simultaneously with voice and outer transmissions associated with the cellular system. A  subscriber station may be capable of receiving using a plurality of different communication channels or frequency bands, such as a first receiver capable of cellular reception and a second receiver capable of satellite reception, at least one of which uses spread-spectrum techniques. The subscriber station may also comprise a transmitter using at least one communication channel or frequency band, so that the subscriber station may receive data or other transmissions using one channel and may request further data or other transmissions using a second channel.
Patent CA-2126389-C (CA)
Inventor: PACELLI JOHN R
IPC: G08B5/38
Filed: 1994-06-21
Granted: 1999-05-18
Abstract: A visual signaling system is provided incorporating strobe light means which emits flashes of light at a constant rate, as distinguished from a random rate, despite variations in input voltage applied to the system. The system enables predetermined signals to be perceived by persons in high decibel areas or by hearing impaired persons, and multiple signaling units may be incorporated in a multistation system whereby the strobe lights in each of the signaling units all flash simultaneously at a synchronized rate, as distinguished from independently or at random rates.
Patent CA-2128502-C (CA)
Inventor: ISHIKAWA SHOICHI
IPC: F16H55/08
Filed: 1992-11-24
Granted: 2004-08-31
Abstract: In a cup-shaped flexing contact gear (1), both a rigid internal gear (2) and a flexible external gear (3) are made to be non-profile-shifted spur gears, an opening (3a) of the flexible external gear (3) is set in a state of negative deviation wherein a deflection of the opening is lower in value than a normal deflection; a moving locus is obtained through rack approximation of teeth of the external gear to the internal gear at respective sections of rotation of tooth trace of the flexible external gear (3), an envelope (e) is obtained by overlapping the moving locus on one of sections of rotation, another moving locus is obtained in a section of rotation at the end portion of tooth trace on the side of a diaphragm or in the vicinity of the outside of the end portion and is smoothly connected to the envelope to thereby obtain a composite curve (L). A curve (FE) is obtained by similarity transforming at a reduction ratio of 1/2 a portion from a starting point (A) of the envelope (e) to a terminating point (E) thereof corresponding to two times the working depth in the direction of the depth from an apex of a moving locus (~ o) when deviation is 0, using the terminating point as an original point, and this curve is made to be each of main portions of convex tooth profiles at tooth faces of the both gears (2, 3). Further, a composite curve (MFE) including a straight line (MF) having a limited pressure angle (.alpha.M) associated with a deflection value of the opening inserted in the vicinity of a datum point (M) of tooth profile and a transient curve smoothly connecting the straight line to the main portion of the convex tooth profile is made to he each of tooth profiles at the tooth faces of the both gears.
Patent CA-2128837-C (CA)
Title: Method and device for coating a body rotating about an axis
Inventor: GRIMM WOLFGANG
IPC: B29C48/07
Filed: 1994-07-26
Granted: 2004-07-06
Abstract: The coating of bodies rotating about an axis with a reaction mixture forming a polyurethane can be improved by making use, by way of application nozzle, of a sheet die disposed parallel to the axis of rotation of the body at an angle .alpha., whereby the rate of reaction of the reaction mixture and the relative movement are synchronized with the circumferential speed of the rotating body in such a way that the successive convolutions overlap in the form of scales and connect together seamlessly.
Patent CA-2130087-C (CA)
Inventor: PAJU RAIMO
IPC: D21C11/12
Filed: 1993-02-17
Granted: 1997-12-30
Abstract: The invention relates to a method and apparatus for use in the pulp industry for improving the safety of a spent liquor recovery boiler, such as soda recovery boiler, whereby the boiler comprises, for recovering chemicals and energy, a furnace cooled by water tubes and connected to the water/steam circulation system of the boiler, the cooling of the bottom of said furnace being provided by a separate cooling circulation. The separately cooled lower section of said furnace is provided by separating the bottom or the bottom and part of the furnace walls from the boiler water circulation system. This separated section is supplied with a cooling medium of its own which may be a gas or a liquid which does not cause an explosion if it contacts the melt of the furnace.
Patent CA-2131295-C (CA)
Inventor: ROSCH REINHARD W
IPC: H04M19/00
Filed: 1993-03-17
Granted: 1998-02-24
Abstract: A telephone line interface circuit comprises two unity gain d.c. amplifiers (132, 134) having outputs d.c. coupled via feed resistors to the line wires. Currents in the feed resistors are monitored via a digital control circuit (152), which can be programmed to provide desired operating conditions. The control circuit controls, via D-A converters (158, 161), currents passed by current sources (142,148) through resistors (140,146) at inputs of the d.c. amplifiers, thereby determining voltages at the amplifier inputs and hence on the line wires. These d.c. voltages are smoothed by capacitors (136,138) used for coupling an a.c. signal to the d.c. amplifiers. The voltage control facilitates adaptive adjustment of the line interface circuit to the line in dependence upon the monitored currents.
Patent CA-2132159-C (CA)
Title: Push button controlled multifunction shower head
Inventor: CHAN RAYMOND W M
IPC: B05B1/16
Filed: 1994-09-15
Granted: 2005-08-09
Abstract: A push button controlled multifunction shower head. The push button moves a pawl attached to spring biased slide, the pawl bearing against a ratchet wheel which is rotated through a predetermined arcuate step responsive to each push button operation. The ratchet wheel moves a shutter which directs water into a selected one of several races, each race being individually associated with a spray pattern. The shower head may be built into a hand held housing wherein the handle may be held and the push button may be operated by one hand.
Patent CA-2138269-C (CA)
Title: Dynamometric screw or nut
Inventor: WATTERBACK PAUL GUNNAR
IPC: F16B31/02
Filed: 1992-07-15
Granted: 2003-04-22
Abstract: A torque-nut or torque-screw, i.e., a fastening device with fastening threads, i.e., threads which are operative for the fastening function of the device, and with an indication means which is integrated in the device to be released at a predetermined tightening torque, is provided herein. The fastening device includes an inner fastening member having fastening threads which are formed on the inside of the inner fastening member. An outer female member is rotatable by means of a tool, the female member being connected to the inner fastening member by means of a coupling having a strength which is sufficient to transfer, to the inner fastening member, a predetermined torque which is of a magnitude for which the fastening device is designed. The outer female member is designed to be released and rotated relative to the inner fastening member upon tightening of the coupling to a degree that exceeds the predetermined torque. The coupling between the outer female member and the inner fastening member comprises a conical screw coupling.
Patent CA-2144514-C (CA)
Title: Morphogen-induced liver regeneration
Inventor: KUBERASAMPATH THANGAVEL
IPC: C12P21/02
Filed: 1993-09-16
Granted: 2002-03-26
Abstract: Disclosed are therapeutic treatment methods, compositions and devices for maintaining liver function in a mammal, in-cluding means for regenerating lost or damaged hepatic tissue, means for enhancing viability and integration of hepatic tissue and organ transplants, and means for correcting liver function deficiencies, including means for enhancing diminished liver func-tion due to tissue injury or disease. The methods, compositions and devices on this invention all provide a therapeutically effec-tive morphogen concentration to the hepatic cells to be treated. Also disclosed are methods and compositions useful in a gene therapy or drug delivery protocol for correcting a protein deficiency in a mammal.
Patent CA-2147375-C (CA)
Inventor: MIYATA KAZUYOSHI
IPC: C07F9/655
Filed: 1994-08-08
Granted: 2003-02-11
Abstract: A phosphonic diester derivative represented by general formula (1), (see formula I) wherein R1, R2 and R3 are the same or different from one another and each represents hydrogen, lower alkyl, halogeno, cyano, hydroxy or lower alkoxy which may be substituted by halogen, phenyl or hydroxypiperidino; R4 represents hydrogen, lower alkoxy, halogeno or lower alkyl which may be substituted by halogeno or cyano; and R5 and R6 are the same or different from each other and each represents hydrogen or lower alkyl. This derivative is excellent in hypolipemic, hypotensive, hypoglycemic effects and is useful for treating and preventing hyperlipemia, hypertension and diabetes.
Patent CA-2152734-C (CA)
Title: Apparatus for impulse fire extinguishing
Inventor: SZOECS ISTVAN
IPC: A62C35/02
Filed: 1995-06-27
Granted: 1999-07-06
Abstract: An apparatus for impulse fire extinguishing has an ejection tube for holding a firefighting powder or liquid, a gaseous-propellant container connected to the ejection tube, and a quick-acting closing element within the container. The tube has one end open to surrounding air space. The closing element defines a movablebarrier between a propellant chamber and an equalizing chamber within the container. The closing element is movable from a position at which the closing element closes the other end of the ejection tube to a position at which the other end of the ejection tube is open. The position of the closing element depends upon the pressure in the propellant chamber and the pressure in the equalizing chamber.
Patent CA-2154811-C (CA)
Inventor: BADGER DAVID MARK
IPC: H03L7/107
Filed: 1995-07-27
Granted: 1999-01-26
Abstract: A more rapid charging of an integrating capacitor of a PLL is provided when large frequency changes are desired. In one embodiment, the phase locked loop (PLL) circuit sinks or sources current to charge or discharge the integrating capacitor. A threshold voltage proportional to a current through the capacitor turns on a circuit which sinks or sources more current of the proper polarity to the integrating capacitor from an external source until a PLL lock is achieved. Once the lock is achieved, if a small correction current is required by the PLL, the small correction current is below a threshold required to actuate the augmenting circuit, and the PLL loop behaves in the usual manner as if the augmenting circuit were not present. In another embodiment, the integrating capacitor is reduced in value by switchably connecting a second capacitor in series with the integrating capacitor so that the total reduced capacitance of reduced value can be charged more quickly.
Patent CA-2157997-C (CA)
Title: Tires with dyed indicia
Inventor: MAJUMDAR RAMENDRA NATH
IPC: D06P3/00
Filed: 1995-09-11
Granted: 2006-06-13
Abstract: This invention relates to a vulcanized rubber substrate such as, for example, a tire and a crosslinked, non-black rubber composition layer thereon such as, for example, a white sidewall. In one aspect, the invention relates to such a tire wherein said white sidewall is colored after its vulcanization with a contrasting colored dye. In another aspect, a dye solution is provided which is comprised of a dye dissolved in a hydrocarbon solvent which is characterized by having a solubility parameter of from about 12 to about 20 [J/m3]1/2.cndot.10-3 according to the Polymer Handbook. Upon application of such dye solution to, for example, a crosslinked white portion of a tire sidewall, such dye solution penetrates and swells at least a portion of said white tire sidewall. Upon evaporation of the solvent, a dyed penetration layer is formed.