baber/WOPTO huggingface dataset:
Patent CA-2060184-C (CA)
Title: Free machining, non-magnetic, austenitic stainless steel alloy and a magnetically biased device incorporating the same
Inventor: MANIAR GUNVANT N
IPC: G01P15/135
Filed: 1990-10-18
Granted: 1997-12-30
Abstract: This invention provides a non-magnetic, austenitic, corrosion resistant stainless steel alloy having improved machinability, a consistently reproducible coefficient of thermal expansion, and an essentially ferrite-free structure. The alloy contains about 0.04-0.10 w/o C, 0.03/0.07 w/o N, 2.00 w/o max, Mn, 1.00 w/o max. Si, 0.045 w/o max. P, 0.015-0.10 S, 19.00-24.00 Cr, 0.75 w/o max. Mo, 12.00-18.00 w/o Ni, and the balance iron.  The alloy is balanced so that no more than about 2 v/o ferrite as determined by the DeLong diagram is present and so that the coefficient of thermal expansion is about 14.5 x 10 -6 to 16.5 x 10 -6 per °C within the temperature range of about -51 to 121°C, and containing no more than about 2 v/o ferrite as determined by the DeLong diagram and therefore, being non-magnetic.
Patent CA-2061960-C (CA)
Title: Electric motor control apparatus and method
Inventor: DELANGE ROBERT J
IPC: H02P3/18
Filed: 1992-02-27
Granted: 2002-07-16
Abstract: An electric induction motor is connected by a switch means to a source of three-phase alternating electricity. The speed of the motor is determined by detecting when the source voltage a zero crossing and thereafter sensing the polarity of the back emf voltage induced in each winding of the motor when the switch means is non-conductive. After several zero crossings a set of polarity samples has been produced from each winding.      The motor speed is determined by detected the occurrence of a predefined relationship among samples in each set. For example, the speed is in the range of fifty to about thirty-eight percent of full synchronous speed when three consecutive samples from one winding all have the same polarity. The occurrence of the predefined relationship among back emf polarity samples can be used to control the braking of the motor.
Patent CA-2062841-C (CA)
Title: Apparatus and method for non-stop switching in asynchronous transfer mode
Inventor: KONDO RYUICHI
IPC: H04L12/70
Filed: 1992-03-12
Granted: 1998-09-15
Abstract: According to the present invention, when a current system is switched to a spare system in a transmission system in an asynchronous transfer mode, empty cells transmitted in the current and spare systems are detected, and thereby a timing for switching the current system to the spare system is determined.  When no phase difference is existent between the current and spare systems, an empty cell is detected in both the current and spare systems at the same time.  Therefore, the current system is switched to the spare system, when an empty cell is detected in both the current and spare systems at the same time.  When a shade difference is existent, if an empty cell is detected either in the current or spare systems, another empty cell is inserted in to the systems.  Then, the data of the empty cell in a spare system is saved.  After the empty cell in a current system passes, the current system is switched to the spare system.  When a phase difference of at least one cell is existent, and if an empty cell comes earlier in current system, empty cell are kept inserted form when the empty cell is detected in the current system until an empty cell is detected in the spare system. After that, the current system is switched to the spare system.  When an empty cell comes earlier in a spare system, the data of the cell in the spare system is saved from when the empty cell is detected until an empty cell is detected in the current system.  After that, the current system is switched to the spare system.
Patent CA-2064408-C (CA)
Inventor: HAMANN HORST
IPC: F16D23/12
Filed: 1992-03-30
Granted: 1995-05-23
Abstract: A device for operating a clutch, especially an automotive clutch, has a clutch lever with two end positions, a past-dead-center spring that acts on the clutch lever, which spring exerts a force on the clutch lever when the clutch lever is positioned between the dead-center position and an end position, such that the force is directed towards this end position, and finally, additional spring mechanisms, which act on the clutch lever to reduce the pedal force that must be applied to it between the end position corresponding to the engaged state of the clutch and the dead-center position.  The additional spring mechanisms are designed and mounted in such a way that they are in actual working contact with the clutch lever only from the end position of the clutch lever corresponding to the engaged state of the clutch to the dead-center position of the clutch lever.
Patent CA-2065917-C (CA)
Title: Sandblasting system and process
Inventor: BEAUSOLEIL NORMAND R
IPC: B24C9/00
Filed: 1992-04-13
Granted: 1998-09-15
Abstract: A  system for sand blasting includes  a  longitudinally protecting wall provided with a horizontal slit  therethrough,  a control  center having a platform longitudinally  displacable  in front  of  the  wall  and a seat on the  platform  which  can  be vertically displaced relative to the slit.   A sand blasting  gun is  mounted  on the platform between the wall and  the  seat  and extends through the slit.  The gun is pivotally mounted on a post substantially in the plane of the wall for allowing the gun to be directed  in a plurality of angular directions across  the  slit.           A  stand for supporting an article having a large surface  to  be treated  is located on the side of the wall opposite  the  chair.           The stand is adapted to pivot the article about a vertical and  a horizontal  axis whereby the gun is adapted to laterally  project sand  on the article when the platform is displaced from side  to side  along the slit and when the gun and the stand  are  pivoted about their vertical axis.   The gun is also adapted to  upwardly and  downwardly blast the article when the gun and the stand  are pivoted about a horizontal axis.
Patent CA-2071263-C (CA)
Inventor: SHIBATA FUMIO
IPC: D03D15/56
Filed: 1992-06-15
Granted: 1994-12-20
Abstract: A hospital textile suitable for operating gowns comprising a low air permeable fabric woven from continuous polyester filaments together with continuous conductive polyester filaments arranged at appropriate intervals in a warp and/or weft direction thereof, a surface of the fabric being composed of fine-denier filaments having a monofilament denier of 1.2 or less, and a water repellent finish being applied to the fabric, which is low in lint or dust generation and excellent in antistatic properties, having resistivity against degradation due to repeated uses and due to steam treatment for disinfection and sterilization, and against degradation due to .gamma.-ray irradiation, can prevent the adhesion and penetration of the body fluid or blood as well as the outward filtration of lint or dust emitted from underwears, and has desirable soft hand.
Patent CA-2073601-C (CA)
Title: Pharmaceutical compositions containing rifaximin for treatment of vaginal infections
Inventor: MARCHI EGIDIO
IPC: A61P31/04
Filed: 1992-07-10
Granted: 1996-07-09
Abstract: Vaginal pharmaceutical compositions administrable through the topical route, particularly in the form of vaginal foams and creams containing a therapeutically effective amount of rifaximin (Common International Denomination) are useful in the treatment of vaginal infections, particularly bacterial vaginosis.
Patent CA-2080600-C (CA)
Inventor: DAVIS ELIZABETH JEAN
IPC: A61F13/472
Filed: 1991-04-18
Granted: 1999-09-07
Abstract: Disclosed is a sanitary napkin (20) having flaps (78) folded over the topsheet (22). This arrangement helps to maintain the topsheet in a sanitary condition and is more convenient for the wearer than a configuration having the flaps folded over the backsheet. The flaps (28) may be maintained in this folded arrangement by a unitary release strip (46) which bridges the flaps and covers any adhesive (40) used to attach the flaps (28) to the undergarment. If desired) the release paper (46) may further wrap the longitudinal side margins (30) on the sanitary napkin to additionally cover adhesive (42) disposed on the central portion of the backsheet. If desired, the flaps (28) may be folded over the topsheet (22), overlap each other and be adhesively (40) joined to the other flap.
Patent CA-2083628-C (CA)
Title: Tissue aperture repair device
Inventor: GIANTURCO CESARE
IPC: A61F2/02
Filed: 1992-11-24
Granted: 2004-01-06
Abstract: A tissue aperture repair device which is inserted using either an openly or minimally invasive surgical procedure for at least partially covering a tissue aperture or hernial ring. The repair device includes a foldable sheet (13) of material that is maintained with support means in an unfolded shape. The support means includes a second sheet (16) of material attached to the circumference of the foldable sheet for forming a cavity (18) therebetween. An elastic stiffener wire (22) is inserted into the cavity for maintaining the device in its unfolded shape. Percutaneous insertion of the device is accomplished with the inclusion of an introduces (23) in which the device is folded about the distal end thereof and contained within a containment sheath. The device is percutaneously inserted into the abdominal cavity of a patient, unfolded, and extended to the unfolded shape with an elastic stiffener wire also percutaneously inserted through the introduces. The device is attached to tissue surrounding the hernial ring using suture material or helical coil fasteners. Alternatively, the device is fastened using an affixation suture extending from the foldable sheet of material.
Patent CA-2083795-C (CA)
Title: Automatically adjustable friction clutch
Inventor: REIK WOLFGANG
IPC: F16D13/46
Filed: 1992-11-25
Granted: 2002-10-15
Abstract: A friction clutch wherein a pressure plate is axially movably but non-rotatably coupled to a cover and is biased by a diaphragm spring to urge the friction linings of a clutch disc against a flywheel which is driven by the engine of a motor vehicle. The diaphragm spring is tiltable relative to a set which is carried by the cover, and a second spring is provided to bias a portion of the seat against the diaphragm spring. The latter can be moved axially of the flywheel to compensate for wear upon the friction linings, particularly when the flywheel is idle or is driven at a relatively low speed. The device which compensates for wear upon the friction linings is installed between the diaphragm spring and the cover, and its purpose is to ensure that the bias of the diaphragm spring upon the pressure plate in engaged condition of the friction clutch remains at least nearly constant regardless of the extent of wear upon the friction linings and certain other parts including the diaphragm spring, the pressure plate, springs which form part of the clutch disc to urge two sets of friction linings axially and away from each other against the flywheel and the pressure plate, respectively, and leaf springs which connect the pressure plate to the cover.
Patent CA-2084390-C (CA)
Inventor: SCHANTZ CHRISTOPHER A
IPC: B41J2/155
Filed: 1992-12-02
Granted: 2003-09-16
Abstract: In one of the preferred embodiments, an inkjet printhead includes a nozzle member formed of a polymer material that has been laser-ablated to form tapered inkjet orifices. The nozzle member is then mounted to a substrate containing heating elements, each heating element being associated with a single orifice. In a preferred method, the orifices are formed by Excimer laser ablation.       In other aspects of the invention, vaporization chambers as well as ink channels, providing fluid communication between an ink reservoir and the orifices, are also formed by Excimer laser ablation.
Patent CA-2093224-C (CA)
Title: Reclosable container closure
Inventor: ROTH DONALD J
IPC: B65D17/40
Filed: 1991-09-27
Granted: 2003-05-06
Abstract: A reclosable closure for containers of the type used for keeping or storing product for some time following initial opening of the container. Typical uses would be for snack foods such as candies, peanuts, etc., and powdered products such as sugar, cof-fee, tea and other beverage mixes and the like. The closure also is adaptable for use with canned vegetables and meats and also with non-food products such as, for example, nails, tacks and a myriad of similar hardware items. The preferred closure includes an end panel (24) and ring-shaped frame member (22) which are fused or otherwise adhered together during insert-injection molding of the frame member. Means are provided on the frame member for contacting an edge of the end panel, or an integral pull tab (34) thereon, for restraining the end panel in a position for reclosing the container.
Patent CA-2096426-C (CA)
Title: Process and composition for cleaning contaminants with terpene and monobasic ester
Inventor: BOLDEN PAUL L
IPC: B08B7/00
Filed: 1991-11-29
Granted: 2002-01-29
Abstract: An industrial cleaning process in which a contaminant comprising soldering flux and/or adhesive tape residue is removed from a substrate contaminated therewith, for example, a printed circuit board contaminated with rosin flux, comprising: (A) con-tacting the substrate with a terpene-based cleaning composition which is substantially free of water-soluble organic material, for example, a surfactant, for a period of time sufficient to solubilize the contaminant; (B) removing the composition and solubilized contaminant from the substrate by contact with water having a temperature of about 70 ÀF to about 140 ÀF (but preferably lower) for a period of time of no longer than about 10 minutes to provide a substrate having a contamination rating of no greater than about 14 micrograms NaCl equivalent/square inch (MIL-P-28809A), and to thereby form a mixture comprising the composition, contaminant and water; and (C) separating the water from said mixture, the separated water being substantially free of water-sol-uble organic material and having a chemical oxygen demand of no greater than about 1,000 ppm, and also a cleaning process uti-lizing a cleaning composition comprising a major amount of a monobasic ester to clean surfaces that are contaminated with an organic residue.
Patent CA-2104216-C (CA)
Inventor: REID DREW AUSTIN
IPC: H05K7/14
Filed: 1992-12-15
Granted: 1998-12-22
Abstract: Dans un système de distribution électrique conçu pour déterminer les trajets de courant traversant une série de disjoncteurs associés (20), une configuration de circuit programmable actionne ces disjoncteurs de circuit à l'aide d'une commande à distance, à tout le moins lorsque le circuit est en position ouverte et fermée.  Cette configuration de circuit est constituée d'un réseau de points d'arrivée (38), utilisés sous la forme d'ensembles de points, de manière telle que chaque ensemble comporte une série de points d'arrivée, chaque ensemble recevant un signal de commande produit à distance qui lui permet de commander l'ouverture ou la fermeture des disjoncteurs du circuit.  Un circuit de commande est constitué d'un micro-ordinateur (32), lequel est relié au réseau de points d'arrivée et répond au signal de commande produit à distance pour commander le déplacement des disjoncteurs de circuit entre les positions ouverte et fermée.  Le micro-ordinateur procède à la lecture des points d'arrivée sur une grille xy, en recherchant les valeurs de l'axe des y correspondant à celles de l'axe des x.
Patent CA-2110063-C (CA)
Title: Dispenser of doses of liquids and paste-like masses
Inventor: KATZ OTTO
IPC: B05B11/00
Filed: 1992-06-29
Granted: 2003-08-19
Abstract: A paste dispenser for dispensing doses of liquids and in particular paste-like masses has a feed pump actuated by finger pressure capable of feeding in the direction of actuation and of aspirating by means of restoring spring, whose feed and suction valves may be controlled by differences of pressure as well as by additional mechanical forces. The dispenser has a reservoir whose volume diminishes as the product is removed, thanks, to resilient walls, and a closure element linked to the feed actuating device and arranged in the product removal bore. A closed feed valve lies with its planar surface and with a seal linked to a piston on a plane and a closed suction valve forms with its planar surface and a front wall another plane that delimits the stroke of the piston. Contact zones are available between the suction valve and the feed valve. A closure element can be moved by a lever in the opening direction. Finally, the piston can be moved in the feeding direction. The restoring spring arranged outside the pump chamber is fitted between a shoulder and a flange linked to the piston. The sliding guide linked to a dosing head has a circular edge that rests on a stop.
Patent CA-2110449-C (CA)
Title: Water-based construction adhesive mastic
Inventor: FURLAN WAYNE ROBERT
IPC: C09J131/04
Filed: 1993-12-01
Granted: 1998-09-22
Abstract: A water-based construction adhesive composition containing an aqueous emulsion polymer binder which comprises a blend, based on 100 weight parts of polymer solids, of 25 to 75 parts aqueous emulsion vinyl acetate/-ethylene copolymer and 75 to 25 parts aqueous emulsion vinyl acetate homopolymer.
Patent CA-2111057-C (CA)
Title: Polymers derived from ethylene and 1-butene for use in the preparation of lubricant dispersant additives
Inventor: EMERT JACOB
IPC: C10N30/02
Filed: 1993-12-09
Granted: 2005-04-12
Abstract: The invention pertains to oil soluble copolymers derived from ethylene and 1-butene which have a number average molecular weight between about 1,500 and 7,500, at least about 30 percent of all polymer chains terminated with ethylvinylidene groups, and ethylene-derived content of not greater than about 50 weight percent, and which form solutions in mineral oil free of polymer aggregates, as determined by light scattering measurements. Lubricating oil additives, particularly dispersants, produced by the functionalization and derivatization of these copolymers have enhanced performance (e. g., improved dispersancy and pour point) in lubricating oil compositions, attributable in part to the combination of properties characterizing the copolymers.
Patent CA-2112409-C (CA)
Title: A hair growth and restoration promoter
Inventor: NOMURA MANABU
IPC: A61K8/97
Filed: 1993-02-12
Granted: 1997-12-30
Abstract: A hair growth and restoration promoter having containing as an active ingredient, an extract drawn from at least one kind of orchidaceae plant selected from a group consisting of Calanthe R. Br.,  Phaius Lour., or other genera having a pseudo bulb.      The promoter is obtained from the subterranean stem of Calanthe discolor Lindl., Phaius flavus (Blume) Lindl. or Oreorchis patens Lindl. through the steps of water washing, slicing, immersion in an aqueous alcohol solution to effect extraction, purification by filtration, addition of vitamins, amino acids, animal and plant oils, sodium chloride and so forth, and appropriate dilution with an aqueous alcohol solution.       When applied to a patient whose hair has badly fallen out or thinned out, or been lost entirely, the promoter promotes hair growth and restoration.
Patent CA-2114162-C (CA)
Title: Cellular telephone
Inventor: SEO MITSUYO
IPC: H04M1/72513
Filed: 1994-01-25
Granted: 1998-12-15
Abstract: A foldable cellular telephone has a microphone, a speaker, a foldable telephone main body, a control unit for transmitting/receiving a connection control signal, and an external interface connector connected to an external interface plug, and includes a detecting and notifying section for detecting an open/closed state of the foldable structure and for notifying the control unit of this state, another detecting and notifying section for detecting that the external interface connector is connected to the external interface plug and for notifying the control unit whether the external interface connector is connected, and a setting section, arranged in the control unit, for setting a response holding state when an incoming call is received in a state wherein said external interface plug is connected and the foldable structure is open.
Patent CA-2125427-C (CA)
Title: Composite metal oxide particle processes and toners thereof
Inventor: LEWIS RICHARD B
IPC: G03G13/08
Filed: 1994-06-08
Granted: 1999-11-23
Abstract: Disclosed is a composite metal oxide charge enhancing additive composition comprised of a first metal oxide forming a core particle, and a second metal oxide forming an outer layer on the first metal oxide core particle of the formula [(M1O n)x]-[(M2O n)y] wherein M1 represents the first metal oxide metal, M2 represents the second metal oxide metal, n is an integer representing the number of oxygen atoms and is determined by the valence of the metal M to which the oxygen atoms are bonded, x and y represent the relative molar ratios of the first and second metal oxides, and wherein M1 is different from M2.      Also disclosed is a composite metal oxide toner charge enhancing additive composition comprising an organosilane outer layer or coating covalently bonded on the outer surface of the second metal oxide layer of the formula [(M1O n)x]-[(M2O n)y]-[(Si[R m]4-n)z] wherein [(Si[R m]4-n)z] represents the covalently bonded organosilane outer layer surface coating where Si is the silicon atom of the organosilane linking or coupling agent; R is a member of the group of alkyl, alkenyl, alkynyl, aryl, alkaryl, aralkyl having between 1 to 25 carbon atoms or halogenated derivatives thereof; m is an integer with a value of at least one; n of the organosilane is an integer having a value of 1 to 3 and z is determined from the molar ratio of the silane component relative to the first and second metal oxides.
Patent CA-2125508-C (CA)
Inventor: ISHIKAWA SHINJI
IPC: C03B37/014
Filed: 1994-06-09
Granted: 2004-06-08
Abstract: A process for producing a porous glass preform for optical fiber by depositing fine glass particles on an outer surface of a glass material while moving the glass material, including the steps of: preheating a portion of the glass material to clean the portion of the glass material in an apparatus for depositing fine glass particles; and depositing fine glass particles on the portion of the glass material cleaned by the preheating, in the apparatus for depositing fine glass particles.
Patent CA-2129303-C (CA)
Title: Tubular heater for preparing carbon monoxide-containing gas mixtures
Inventor: HOHMANN FRIEDRICH
IPC: B01J8/06
Filed: 1994-08-02
Granted: 2003-12-09
Abstract: The tubular heater comprises numerous tubes, which are disposed in a combustion chamber and contain ca-talyst. A synthesis gas, which mainly comprises hydrogen, carbon monoxide, and carbon dioxide, is prepared in the tubes. There is a risk of a formation of carbides (metal dusting corrosion) on the outside surface of the outlet ends of the tubes. To prevent such corrosion, a gaseous or vaporous protecting fluid, which is substantially free of CO, is supplied to the region surrounding the outlet ends of the tubes.