baber/WOPTO huggingface dataset:
Patent CA-2071103-C (CA)
Title: An admixture for spray concrete and mortar and a method for the manufacture or spray concrete and mortar using this admixture
Inventor: BURGE THEODOR A
IPC: E21D11/10
Filed: 1992-06-12
Granted: 2003-06-03
Abstract: Admixtures for spray concrete or mortar which contain silicic acid sol or consist of it, are used for the processing of spray concrete or mortar according to the dry or the wet method. Said admixtures lead to a clear reduction of dust formation and of re-bound. With the processing of spray concrete or mortar the addition of the inventive admixtures takes place preferably during the spraying, for example at the spray nozzle.
Patent CA-2073686-C (CA)
Title: N,n'-dihaloimidazolidin-4-ones
Inventor: TSAO TECHEN
IPC: C02F1/50
Filed: 1991-01-22
Granted: 1999-11-16
Abstract: Substituted N-halo derivatives of imidazolidin-4-ones having substituents at the 2 and 5 positions of the imidazolidin-4-one ring are described. More particularly, there are described N-chloro, N-bromo, N,N'-dichloro, N,N'-dibromo, and N,N'-bromochloro derivatives of imidazolidin-4-ones having substituents selected from hydrogen, alkyl, alkoxy, hydroxy, phenyl, substituted phenyl, or spiro-substitution at the 2 and 5 positions on the ring. These N-halo compounds are stable, noncorrosive biocides which are resistant to direct sunlight, and are useful as disinfectants, sanitizers, and algae inhibitors. The compounds of the present invention may be represented by the graphic formula:   (see formula I)
Patent CA-2080146-C (CA)
Title: 1,1-dichloro-1-fluoroethane stabilization
Inventor: LANTZ ANDRE
IPC: C07C19/12
Filed: 1992-10-08
Granted: 1996-10-01
Abstract: In order to stabilise 1,1-dichloro-1-fluoroethane containing traces of vinylidene chloride, at least one ethylenic hydrocarbon containing at least 4 carbon atoms is added to it.
Patent CA-2081576-C (CA)
Inventor: LEONARD ELIZABETH CASTLE
IPC: B26B21/20
Filed: 1991-02-21
Granted: 1999-01-26
Abstract: La présente invention a pour objet un rasoir de sûreté comportant une micro-grille (20) en métal souple percée d'une pluralité d'ouvertures (22), un bord de chacune de ces ouvertures définissant un fil de rasage. La micro-grille est disposée sur la structure d'une surface de support; une grille protectrice flexible (28) comportant une surface destinée à venir en contact avec la peau épouse le périmètre de la micro-grille et est fixée par-dessus la surface de support et la micro-grille elle-même, les ouvertures de la micro-grille étant exposées à proximité immédiate de la grille protectrice destinée à venir en contact avec la peau.
Patent CA-2085920-C (CA)
Title: Rubber mount
Inventor: WELTIN UWE
IPC: F16F13/00
Filed: 1992-12-21
Granted: 1995-12-26
Abstract: A rubber mount has a liquid filled working chamber bounded by a chamber wall at least a portion of which is an expandible spring and at least another portion of which is a compensation wall reciprocatible to and fro the working chamber.  At least a portion of the compensation chamber is made of magnetizable material and extends relatively movable into an air gap bounded by a pair of opposing magnetic coils.  The coils are respectively rigidly mounted in a coil carrier and can be activated by an alternating electric current.  The magnetic flux generated by at least one permanent magnet in the air gap is superimposed onto the magnet fluxes generated by the magnetic coils and the magnetic coils are synchronously supplied with and controlled by an electric voltage in such a way that the magnetic flux generated by the permanent magnet on both sides of the compensation wall is alternately reinforced on one side and weakened on the other.
Patent CA-2089913-C (CA)
Title: Cryogenic air separation system for producing gaseous oxygen
Inventor: DRAY JAMES R
IPC: F25J3/04
Filed: 1993-02-19
Granted: 1999-08-24
Abstract: A cryogenic air separation system employing a product boiler coupled with a liquid air supply whereby liquid oxygen as effectively vaporized to produce gaseous oxygen product while providing for steady state operation of the cryogenic air separation plant without significant refrigeration loss.
Patent CA-2090040-C (CA)
Inventor: MC BEATH JENIFER H
IPC: A01N63/38
Filed: 1991-08-20
Granted: 2002-11-26
Abstract: The invention includes a new, cold tolerant strain of mycoparasite Trichoderma and mutants that are resistant to a pesti-cide to which the Trichoderma isolate is sensitive. These novel Trichoderma are capable of parasitizing fungi which are pathogen-ic to plants. They are also capable of producing proteinaceous, antimycotic substances which can inhibit the growth of plant pa-thogenic fungi. Cold tolerant Trichoderma and its biotypes can be used in, but not limited to, controlling fungal plant disease, This invention still further relates to a method of promoting the growth and development of a plant by applying an agriculturally effective amount of the Trichoderma isolate or Benomyl resistant mutants of the Trichoderma isolate to a plant or plant tissue.
Patent CA-2091799-C (CA)
Inventor: ROSE BERNARD R
IPC: C23C10/02
Filed: 1993-03-17
Granted: 2004-01-27
Abstract: Process for producing novel nickel superalloy bodies having increased resistance of to oxidation and corrosion at high temperatures. The process comprises applying a thin layer of a platinum-group metal and heating to an elevated temperature to diffuse or integrate the platinum-group metal into the surface of the metal superalloy. Then the superalloy body is packed into a container filled with a diffusion powder composition containing sources of aluminum and chromium metals and heated in an inert gas atmosphere to an elevated temperature to codeposit and diffuse aluminum and chromium into the platinum-group metal-treated surface. Finally, the superalloy body is removed from the diffusion coating container and heated to the solvus temperature to form a ductile surface having an outer zone microstructure comprising PtAl2 which has been ductilized by the solutioning of beta chromium. This ductilized PtAl2 may or may not be in a beta phase nickel aluminide matrix depending on substrate composition.
Patent CA-2093788-C (CA)
Title: Method for extracting zinc present in liquid cast iron, and means for implementing such methods and products thus obtained
Inventor: TISSIER JEAN CHARLES
IPC: C22B9/04
Filed: 1991-10-03
Granted: 2002-07-30
Abstract: PCT No. PCT/FR91/00776 Sec. 371 Date Sep. 17, 1993 Sec. 102(e) Date Sep. 17, 1993 PCT Filed Oct. 3, 1991 PCT Pub. No. WO92/06222 PCT Pub. Date Apr. 16, 1992.The invention relates to the field of metallurgy and to a method and a device for the extraction of zinc in solution in a liquid iron bath (2) held in a container (3), such as a crucible for the casting of foundry parts. It is characterized in that, before utilizing the bath for the casting of parts, in a first phase, the gas volume (7) situated in the container (3) is sealingly confined in the east iron bath (2) and, in a second phase, a variable partial vacuum is created in the confined atmosphere in a controlled way in order to constantly adjust it to a predetermined value as a function of the time evolution of the pressure of vapor saturating zinc in solution in the melt at the bath temperature; and said zinc is trapped.
Patent CA-2094193-C (CA)
Title: Method and apparatus for providing time diversity
Inventor: WEERACKODY VIJITHA
IPC: H04B7/06
Filed: 1993-04-16
Granted: 1998-08-25
Abstract: The invention provides a method and apparatus for transmitting digital signal information to a receiver using a plurality of antennas. The invention involves applying a channel code to a digital signal producing one or more symbols. A plurality of symbol copies is made and each copy is weighted by a distinct time varying function. Each antenna transmits a signal based on one of the weighted symbol copies. Any channel code may be used with the invention, such as a convolutional channel code or block channel code. Weighting provided to symbol copies may involve application of an amplitude gain, phase shift, or both. The present invention may be used in combination with either or both conventional interleavers and constellation mappers.
Patent CA-2099887-C (CA)
Inventor: KOLLASCH STEFAN
IPC: A24F1/00
Filed: 1992-01-03
Granted: 2005-08-02
Abstract: Portable smoking apparatus (10) comprises a storage assembly (17) in which tobacco may be stored and from which a charge of tobacco may be selectively fed into a tobacco burning chamber (13). A stem assembly (11) having a mouthpiece (12) is attached to the burning chamber (13) whereby they may be pivoted from a stowed position, at which the mouthpiece (12) is adjacent the storage assembly (17) and the burning chamber (13) is open to the storage assembly, to an operative position at which the burning chamber (13) is exposed for burning and the mouthpiece (12) is remote from the burning chamber and accessible to permit smoke to be inhaled.      The stem assembly (11) may be returned to the stowed position whereby the burning chamber (13) moves past an asking port (32) through which ash from the burning chamber (13) may be discharged.
Patent CA-2104312-C (CA)
Inventor: MORANO EMANUEL P
IPC: A61J11/00
Filed: 1993-08-18
Granted: 1996-04-16
Abstract: A baby bottle  feeding assembly  is disclosed which includes a hood type enclosure for the nipple, when the bottle is not in use.   During periods of bottle use, the hood is stored over the opposite end of the bottle.   In order to positively retain the hood in either its nipple protecting or storage condition, the hood includes raised beads, which cooperatively engage complementary protrusions at either end of the bottle so as to provide a positive locking  engagement.    This  engagement  may  be  manually defeatable when it is desired to move the hood to its other desired position on the bottle.  When the hood is locked in the storage condition, it is substantially co-extensive with the bottom region of the bottle, so as not to significantly extend beyond the bottle proper.
Patent CA-2106698-C (CA)
Inventor: ZIMMERMAN JOHN CHRIS
IPC: E21B34/08
Filed: 1993-09-22
Granted: 1997-11-11
Abstract: A differential pressure operated valve for use as a circulating and/or deflation valve in a well bore.  The valve comprises  a  housing  defining  first  and  second  bores therethrough and a passage providing communication between the interior and exterior of the housing.   A valve sleeve is slidably disposed in the housing and has a first outer surface slidably disposed in the first bore and a second outer surface slidably disposed in the second bore.  A valve port is defined in the valve sleeve providing communication between a central opening thereof and the passage in the housing when the valve sleeve is in an open position.   When the valve sleeve is closed,  the valve port and passage are isolated from one another.  The first and second outer surfaces of the valve sleeve define a differential area, and the valve is closed by fluid flow creating a differential pressure acting across this area.  A spring biases the valve toward the open position.  A mandrel may be disposed in the valve which has a flange thereon for locking the valve sleeve in the closed position.          A mandrel port defined in the mandrel is in communication with the passage in the housing when the valve sleeve is in the open position.
Patent CA-2113727-C (CA)
Inventor: IURA TADASHI
IPC: A61G7/00
Filed: 1992-05-22
Granted: 1999-03-16
Abstract: A configuration of bed is provided herein so that the fixed bed frame in a rotary-type bed does not disturb care given to a physically-handicapped person l ying on the bed. A rotary bed frame rotatable around a vertical axis is provided on t he fixed bed frame placed on the floor, with a front screen attached to the front s ide. A foldable movable mat support member is provided on this rotary bed frame, the mat support receiving a mat. The mat is divided into a back-receiving part, a waist-receiving part and a leg-receiving part. The rotary bed frame is rotated b y an appropriate drive. At the same time, the back-receiving portion is caused to sta nd up prior to rotation. Furthermore, at least the front side portion of the bed frame has a transverse width which is narrow enough to permit stepping over.
Patent CA-2114736-C (CA)
Inventor: CRUTCHER JOHN P
IPC: B25C5/00
Filed: 1994-02-02
Granted: 2006-04-18
Abstract: An electromechanical tool for driving fasteners into a workpiece. The tool. uses a single flywheel in combination with a clutch mechanism whereby a conically shaped flywheel frictionally cooperates with a corresponding drum to cause a driver which is coupled to the drum by a cable to be pulled with considerable force through a working stroke to drive a fastener from the tool.
Patent CA-2117964-C (CA)
Inventor: NORTON R SCOTT
IPC: A01D41/14
Filed: 1994-10-12
Granted: 1998-12-15
Abstract: A reverse system for the feeder chain of a combine harvester comprises a hydraulic motor mounted on a slide and operated by a cylinder to move from a retracted position to a forward operating position. In the operating position the mechanical coupling connects the shaft of the hydraulic motor to a drive sprocket connected to the feeder chain. Hydraulic fluid to the cylinder and to the hydraulic motor is tapped from the lift cylinders of the combine from a solenoid operated diverter valve. A control unit controls the supply of the pressurized fluid to the cylinder while delaying the supply of fluid to the hydraulic motor so that the mechanical coupling is connected while stationary before the hydraulic motor starts. This arrangement can be provided by simple mechanical devices providing an inexpensive drive system.
Patent CA-2120519-C (CA)
Title: Hardness suppression in urea solutions
Inventor: DUBIN LEONARD
IPC: C05G5/23
Filed: 1992-09-23
Granted: 2003-01-28
Abstract: The tendency of aqueous solutions of area and other NH-containing compositions to force instability of hardness factors has been found to be detrimental to processes and apparatus employing them.  The reliability of these processes and apparatus is improved by the inclusion of hardness-suppressing compositions, which preferably include both a water-soluble polymer and a phosphonate. In particular, agricultural and NO X-reducing applications are, improved, especially for solutions containing urea hydrolysis products and the salts of them.
Patent CA-2121295-C (CA)
Title: Method for burning fuels, particularly for incinerating garbage
Inventor: MARTIN JOHANNES JOSEF EDMUND
IPC: F23L1/02
Filed: 1994-04-14
Granted: 2000-02-08
Abstract: A method for burning fuels, particularly garbage, in incinerators with a stoker grate, for which the primary air is supplied below the stoker grate into the fuel layer and the secondary air is supplied above the fuel layer, is controlled in such a way that the intensity of the combustion of the fuel on the stoker grate is increased by increasing the oxygen content of the primary air and the intensity of the combustion in the secondary combustion zone is choked by decreasing the oxygen content in the secondary air. Flue gas, preferably from the combustion process, is recirculated in order to reduce the oxygen content of the secondary air.
Patent CA-2125590-C (CA)
Title: Row cleaning attachment
Inventor: CLIFTON KENNETH RALPH
IPC: A01C5/06
Filed: 1994-06-10
Granted: 1998-07-28
Abstract: A row cleaning attachment for seeding equipment comprising a coulter mounted between and behind two press wheels having a uniform circumference. The press wheels are independently spring biased downwardly into contact with the ground for holding and pulling the crop residue away from the planting line of the planting unit.  The coulter has a larger diameter than the press wheels and is located so that the cutting edge of the coulter cuts the residue material as it is being tensioned between the press wheels.
Patent CA-2138431-C (CA)
Title: Synchronizer with self-energizing
Inventor: BRAUN EUGENE R
IPC: F16D23/06
Filed: 1994-12-19
Granted: 1999-11-02
Abstract: A baulkring-type synchronizer (18) includes cone clutch friction surfaces (24,48 and 26,50) and jaw clutch teeth (36b,28 and 36c,30) for frictionally synchronizing and positive connecting gears (14,16) to a shaft (12). A plurality of rigid members (72) are drivingly interposed between blocker teeth (44,46) affixed to baulkrings (40,42) and self-energizing ramp surfaces (70a-70d) defined on an outer circumference of a hub 32 affixed to the shaft (12). A shift sleeve (34) is slidably splined to the hub (32) and is moved by an operator shift force (F o) and an additive force (F a) provided by the self-energizing ramp surfaces. Both forces (F o and F a) react against the blocker teeth to engage the friction surfaces. The self-energizing ramp surfaces may be long enough to assist shift completion as unblocking occurs.
Patent CA-2146393-C (CA)
Title: Determining echo return loss in echo cancelling arrangements
Inventor: MEEK QUENTIN JAMES
IPC: H03H17/00
Filed: 1995-04-05
Granted: 2000-05-02
Abstract: In an echo cancelling arrangement, an estimated echo signal is produced by an adaptive filter from a receive path signal and is subtracted from an incoming transmit path signal to produce an outgoing transmit path signal, to compensate for ERL  (echo return loss) via a hybrid circuit. Short-term averages of signal levels on the receive path arid the incoming and outgoing transmit paths are produced by exponential averaging. An ERLE (echo return loss enhancement) due to the subtraction of the estimated echo signal is calculated from the incoming and outgoing transmit path averages and, when this exceeds a threshold value, enables averaging of a ratio of average levels on the receive path to average levels on the incoming transmit path. The resulting long-term average constitutes a determination of the actual ERL.
Patent CA-2153961-C (CA)
Inventor: WEYER PAUL P
IPC: F16H25/20
Filed: 1995-07-14
Granted: 1999-07-13
Abstract: A fluid-powered rotary actuator having a body with a cylindrical interior sidewall portion. A rotatable shaft extends generally coaxially within the body. The shaft has a grooved, outwardly facing sidewall portion positioned within the body. A ring gear is positioned generally coaxially within the body and extends about the shaft. The ring gear has a grooved, inwardly facing sidewall portion. The ring gear is formed as a separate part from the body and the ring gear grooved sidewall portion is formed prior to positioning of the ring gear in the body. The ring gear is fixedly attached to the body to prevent rotation therebetween by a weld between the ring gear and the body interior sidewall portion. A stop member is engaged by the ring gear to limit movement of the ring gear toward the body first end during assembly of the ring gear in the body. In one embodiment, the ring gear is welded to a stop shoulder. A piston sleeve is mounted for reciprocal axial movement within the body in response to the selective application pressurized fluid thereto. A sleeve portion thereof has a grooved, inwardly facing sidewall portion engaging the shaft grooved sidewall portion and a grooved, outwardly facing sidewall portion engaged with the ring gear grooved sidewall portion to translate axial movement of the piston into clockwise or counterclockwise relative rotational movement between the shaft and the body. A method of manufacturing the actuator is also disclosed which includes forming the ring gear grooved sidewall prior to positioning of the ring gear in the body, and after positioning the ring gear in the body, fixedly attaching the ring gear to the body to prevent rotation therebetween by forming a weld between an attachment portion of the ring gear which projects axially away from the ring gear grooved sidewall portion and is axially spaced apart from the ring gear grooved sidewall portion by a separation distance sufficiently large that the heat of the weld does not distort the ring gear sufficient to impair operation of the actuator.
Patent CA-2178033-C (CA)
Title: Glazing panel having solar screening properties and a process for making such a panel
Inventor: TERNEU ROBERT
IPC: C03C17/25
Filed: 1996-06-03
Granted: 2007-11-13
Abstract: A glazing panel having solar screening properties and a process for making such a panel. A glazing panel comprises a vitreous substrate carrying a pyrolytically formed tin/antimony oxide coating layer containing tin and antimony in a Sb/Sn molar ratio of from 0.01 to 0.5. The coated substrate has a solar factor FS of less than 70%. The panel is formed by chemical vapour deposition from a reactant mixture comprising a source of tin and a source of antimony.
Patent CA-2180301-C (CA)
Title: Substituted dihydrodibenzo/b,f/azepines, method of their preparation, their use in the treatment of some central nervous system disorders, and pharmaceutical compositions containing them
Inventor: BENES JAN
IPC: C07D401/12
Filed: 1996-07-02
Granted: 2004-02-10
Abstract: New compounds of general formula I, including all possible stereoisomers, are described   wherein:      R is hydrogen, alkyl, aminoalkyl, halogenalkyl, aralkyl, cycloalkyl, cycloalkylalkyl, alkoxy, phenyl or substituted phenyl or pyridyl group.      A process for their preparation consists of reaction of compound II    with an acylating agent.     The compounds have valuable pharmaceutical properties in the treatment of some central nervous system disorders.
Patent CA-2185380-C (CA)
Inventor: WILLIAMS THOMAS H
IPC: B27F7/15
Filed: 1996-09-12
Granted: 2004-03-30
Abstract: A table for forming trusses that includes channels that do not unduly deform or bend during truss construction comprises: a support frame; first and second substantially horizontally-disposed elongate panels; a first channel having a generally horizontal floor and opposed side walls extending upwardly therefrom; and a locator stop. Each of the panels has an upper surface, a lower surface, and opposing lateral edge portions, and the panels are positioned so chat their respective upper surfaces are substantially coplanar and so that a first of the lateral edge portions of the first panel is in adjacent, non-contacting relationship with a first of the lateral edge portions of the second panel, thereby forming a gap therebetween. One of the side walls of the channel supports the lower surface of the first panel, and the other of the side walls supports the lower surface of the second panel. The channel floor is supported by the frame and is positioned beneath the gap between the first and second panels so that the first lateral edge portion of the first panel and the first lateral edge portion of the second panel overhang the channel floor.      The locator stop includes a stop portion that resides above the panel upper surfaces, a slide portion that resides below the panel lower surfaces and that slides within the channel, and means for clamping the panels between the stop portion and the slide portion to prevent relative movement therebetween that extends within the gap.