baber/WOPTO huggingface dataset:
Patent CA-2058040-C (CA)
Title: Large bore hydraulic drilling jar
Inventor: EVANS ROBERT W
IPC: E21B4/14
Filed: 1991-12-18
Granted: 2000-02-15
Abstract: A double acting hydraulic drilling jar 1 includes a mandrel 2 arranged in a housing 3 for sliding longitudinal movement. A hammer 69 is positioned on the mandrel 2 and interacts with anvil surfaces 64, 66 in the housing 3 to deliver both upward and downward jarring forces to a drill string. A hydraulic valve arrangement permits the storage of large amounts of static force before releasing the hammer 69 to strike the anvil surfaces with great force.      The hydraulic valve arrangement includes a tripping valve 95 positioned to be actuated by a first pair of engaging surfaces in response to downward movement of the mandrel 2 in the housing 3 and a second pair of engaging surfaces in response to upward movement of the mandrel 2 in the housing 3. Thus, independent control over the upward and downward jarring action is achieved.
Patent CA-2061760-C (CA)
Title: Silica to decrease fat absorption in fried foods
Inventor: HILER GEORGE DOUGLAS
IPC: A23L1/00
Filed: 1992-02-24
Granted: 1997-10-07
Abstract: Potato  pieces,  for  example,  potato  slices,  french fries, and potato cubes or potato skins are prepared with a lower fat content by frying the potato pieces in an oil comprising from about 0.5 to about 2% of a hydrophobic or a hydrophilic silica.  The hydrophilic silicas are preferred for use in the frying fat because they are approved for food use.  Alternatively, the potato pieces can be dipped in silica or water or oil containing silica.
Patent CA-2063530-C (CA)
Inventor: SCHMIDT GLENN H
IPC: A63B53/04
Filed: 1992-03-19
Granted: 1995-07-25
Abstract: A golf club head comprising toe and heel portions, a front wall defining a ball-striking face, and top and bottom walls, the bottom wall characterized as having a medial ridge, and as forming two shallow recesses, one recess between the ridge and the heel portion, and the other recess between the ridge and the toe portion, the recesses everywhere spaced rearwardly from the front wall, the one recess having an arcuate peripheral edge generally convex toward the heel portion, and the other recess having an arcuate peripheral edge generally convex toward the toe portion.
Patent CA-2063785-C (CA)
Title: Image processing apparatus
Inventor: FUNADA MASAHIRO
IPC: G06K15/00
Filed: 1992-03-23
Granted: 1998-09-29
Abstract: An image processing apparatus previously stores information on particular kinds of image, determines the degree of similarity between an input full-color image signal and the information on particular kinds of image, controls conditions for addition of a particular pattern previously stored according to a result of the determination, and outputs an image by adding or not adding the particular pattern to the full-color image signal according to the addition conditions.
Patent CA-2066887-C (CA)
Title: Flat cavity rf power divider
Inventor: WONG HARRY
IPC: H01P1/30
Filed: 1992-04-23
Granted: 1996-04-09
Abstract: A flat cavity RF power divider wherein a flat cavity and an input waveguide share a common wall, coupling slots being disposed in the common wall offset from the centerline of the input waveguide for exciting a dominant TE4,0 mode in the flat cavity, the power divider also including short circuit means for excitig the transverse axis column of the flat cavity, and RF absorber means in the cavity to improve the fre-quency response of the divider, output coupling means also being provided for provid-ing an RF power output.
Patent CA-2068340-C (CA)
Title: Storage tank having secondary containment
Inventor: BARTLOW DAVID HARVEY
IPC: B65D90/04
Filed: 1991-09-30
Granted: 1996-05-21
Abstract: An underground storage tank having secondary containment comprising a self-supporting, semi-rigid thin liner (40) located on the inside of the tank (25). The thin inner liner (40) completely lines the inside of the tank and is structurally independent of the tank.
Patent CA-2069018-C (CA)
Title: Synthesis of perfluoroalkyl bromides
Inventor: DRIVON GILLES
IPC: C07C19/08
Filed: 1992-05-20
Granted: 1997-05-13
Abstract: Preparation of perfluoroalkyl bromides RF-Br, RF denoting a linear or branched perfluoroalkyl radical containing from 2 to 12 carbon atoms.   The continuous process according to the invention consists in reacting bromine and a perfluoroalkyl iodide RF-I in the gas phase at a temperature of between 200 and 600 DEG C, it being possible for the Br2/RFI molar ratio to range from 0.1 to 2. The selectivity for RF-Br is virtually complete.
Patent CA-2070215-C (CA)
Title: Reflection monitor optical fiber coupler manufacturing system and method
Inventor: SUGANUMA HIROSHI
IPC: G02B6/28
Filed: 1992-06-02
Granted: 1998-02-10
Abstract: In an optical fiber coupler fabricating process where couplers are successively formed by heating, elongating and cutting a plurality of long optical fibers, light is led into the first end of the fiber, reflected at the second end of the coupler, and the reflected light is monitored by photodetectors.  In this manner, an exact splitting ratio can be obtained.  Techniques for  inimi zing measuring errors caused by the inter-reflected-light interference, the inter-Rayleigh-scattering-light interference, and the interference between the reflected light and the Rayleigh scattering light, while exploiting the advantageous feature of the reflection monitor method that the fiber connection work for each fiber coupler fabrication is not required are disclosed.
Patent CA-2072313-C (CA)
Title: Ozone generation apparatus
Inventor: WEAVER WILLIAM C
IPC: C01B13/11
Filed: 1992-06-25
Granted: 1995-05-23
Abstract: Ozone generating apparatus adapted for quick installation into existing structures includes a plurality of housings adapted to be coupled together in at least two different relative orientations to permit adaptation of the ozone generation apparatus to the relative direction of air flow through an air handling conduit, with the housing containing ozone generating plates projecting rearwardly from the back surface of the housing containing the power and control circuitry for projection through an opening in the air handling conduit to a position wholly within the air handling conduit.  The apparatus also includes ozone generating and air moving elements enclosed within a generally rectilinear housing having a closed top, four side walls depending from the top and terminating in a coplanar lower edge defining an open bottom, the lower edge being sized to be supported upon rails forming a grid work of a conventional suspended ceiling.
Patent CA-2080355-C (CA)
Title: Isolated viral protein cytokine antagonists
IPC: A61K38/16
Filed: 1991-03-29
Granted: 1999-03-09
Abstract: Isolated viral proteins, and pharmaceutical compositions made therefrom, are disclosed which are capable of binding to cytokines, thereby functioning as cytokine antagonists. Also disclosed are processes for preparing isolated viral protein cytokine antagonists.
Patent CA-2082555-C (CA)
Title: Cartridge clip for setting tool
Inventor: FROMMELT MARKUS
IPC: B25C1/16
Filed: 1992-11-10
Granted: 2000-06-27
Abstract: An explosive powder charge operated setting tool has a guide channel (9) for strip-shaped cartridge clips with feed members (10) and a restraining member (15) extending into the transverse cross-section of a guide channel (9) for the cartridge clips.      Blocking parts (13, 14) are located at the insertion end region of the guide channel (9). The blocking parts (10, 11) are displaced outwardly from one another out of the guide channel (9) by insertion bevels (8c, 8d) on the end of the cartridge inserted first into the guide channel, so that the cartridge clip (8) can be pushed further into the guide channel (9) until it reaches the feed member (10) or the restraining member (15).
Patent CA-2083132-C (CA)
Inventor: ROSS DOUGLAS ALBERT
IPC: H05H1/44
Filed: 1991-06-13
Granted: 2000-10-03
Abstract: Chalumeau à plasma (10) incorporant une pluralité de chambres à arcs (14) disposées symétriquement autour d'un axe (16) et possédant chacune une première électrode (18). Une électrode commune (32) coopérant avec l'électrode (18) de chaque chambre (14) de façon à y former un arc est dotée de passages convergents (36) venant respectivement de chaque chambre et convergeant vers un canal de buse commun (40) s'étendant le long de l'axe (16). Un canal d'alimentation en réactif débouche dans le canal de buse commun (40) coaxialement avec celui-ci dans la zone de convergence des passages convergents (36) de façon à injecter des réactifs dans le centre du jet de plasma formé dans le canal de buse dans la direction du mouvement dudit jet à travers le canal de buse (40).
Patent CA-2089463-C (CA)
Title: Process for stabilizing organophosphorus compounds
Inventor: GLASS RICHARD D
IPC: C07F9/6561
Filed: 1993-02-12
Granted: 2003-08-19
Abstract: Organophosphorus compounds are stabilized against decomposition during and after recovery from their synthesis reaction mixtures by the addition to the synthesis reaction mixture of at least 0.5% by weight of an acid scavenger, based on the weight of the organophosphorus compound, before allowing the organophosphorus compound to crystallize. The invention is of particular value in the stabilization of 2,2'-alkylidene-bis(dialkylphenyl)fluorophosphites, such as 2,2'-ethylidenebis(4,6-di-t-butylphenyl)fluo-rophosphite, which is rendered more suitable for use as a stabilizer for organic polymers, e.g., polycarbonates, by the practice of the invention.
Patent CA-2089949-C (CA)
Title: Angled water closet flange
Inventor: TESKEY JAMES
IPC: E03D11/16
Filed: 1993-02-19
Granted: 2005-07-26
Abstract: An offset toilet flange for connecting an outlet of a toilet bowl with waste water drain conduit is shown.      The toilet flange includes an outer flange having an upper surface and a lower surface. The outer flange has at least two generally opposed first apertures which extend through the flange between the upper surface and the lower surface for retaining fasteners for securing the flange to an underlying surface. At least a portion of the lower surface lies against the underlying surface. The flange also includes at least two second apertures extending from the lower surface to the upper surface for retaining fasteners connecting the flange to the toilet bowl. A seat is also provided for a toilet bowl seal, the seat being located inside of the flange and being circular in plan and inwardly curved in profile. A discharge tube extends outwardly from the seat at angle to an axis corresponding to the centre of the seat in plan and the flange includes an outlet do the discharge for connecting to the waste water drain conduit.
Patent CA-2090788-C (CA)
Title: Hinge mechanism
Inventor: PERSSON PER-HAKAN
IPC: H04M1/02
Filed: 1993-03-02
Granted: 1999-01-05
Abstract: In a hinge mechanism, a first hinge portion and a second hinge portion are urged toward predetermined angular relationships relative to one another.  A force, directed outwardly from the first hinge portion, is applied by an axle pivotally connecting the first and second hinge portions and having a V-shaped tip against a V-shaped groove in the second hinge portion, urging the V-shaped tip and groove to engage.  In addition to being urged toward predetermined angular relationships, the first and second hinge portions are kept in predetermined angular relationships until a torsional force is applied to one of the hinge portions to overcome forces keeping the V-shaped tip and groove in engagement.
Patent CA-2091368-C (CA)
Title: Electronic bird feeder and baffle
Inventor: BOAZ JOHN M D
IPC: A01K39/012
Filed: 1993-03-10
Granted: 2002-02-12
Abstract: An electrical shock baffle for deterring squirrels and other animals from bird feeders, including a support for suspending the baffle, an open electronic circuit interconnected between a conductive portion of the baffle and a conductive portion of the support in order to render one of the conductive portions positively charged and the other of the conductive portions negatively charged so that an electrical shock will result when both the positively charged and negatively charged contacts are simultaneously engaged. The invention, also involves the incorporation of the open electronic circuit into a bird feeder and a bird feeder including a bird exit opening and a quick release feed tray.
Patent CA-2094555-C (CA)
Title: Variable angle friction clutch mechanism for a draft gear assembly
Inventor: SOMMERFELD HOWARD RAYMOND
IPC: B61G9/10
Filed: 1993-04-21
Granted: 1999-08-03
Abstract: A draft gear assembly having a variable angle friction clutch mechanism is provided.  Such assembly includes a housing member having a compressible cushioning element disposed adjacent a closed end thereof.  A seat device is disposed between one end of the compressible cushioning element and an open end of the housing member.  A friction cushioning mechanism is positioned at least partially within the open end of the housing member and includes a plurality of friction surfaces disposed on a plurality of friction elements with at least one wedge member being engageable with the plurality of friction surfaces.  At least one resilient member is provided to enable the friction cushioning mechanism to exhibit a variable angle.  Such resilient member is engageable with at least one of the friction elements and exerts a lateral force on the friction cushioning mechanism which is at least sufficient to maintain all of the friction surfaces in frictional engagement during the useful life of the draft gear assembly.
Patent CA-2101362-C (CA)
Inventor: MORELLI PETER ALAN
IPC: F16D1/08
Filed: 1993-07-27
Granted: 2003-07-15
Abstract: A shaft 44,144,145 is conventionally driveably connected to a bore 46,146 by a steel key of rectangular cross-section. Where the shaft is of smaller diameter than the bore, a slotted nylon sleeve is fitted between them and a tall steel key extends through the slot. Failure of both standard and tall keys can occur for various reasons. A unitary component 50,162,163 of suitable plastics material or non-ferrous metal is therefore proposed. This component essentially includes an integral key 56,174 of curved cross-section adapted to engage in a mating keyway. 176 formed in the bore. Where the shaft 44 and bore 46 are nominally of the same diameter, the component 50 consists also of an integral key 52 of rectangular cross-section adapted to engage in the conventional keyway 48 in the shaft. Where the shaft 144, 145 is of smaller diameter than the bore 146, the component 162, 163 also includes a sleeve 164 with the key 174 of curved cross-section formed on its outer periphery, and a keyway 170 of rectangular cross-section formed in its inner periphery and adapted to be driveably connected by a separate standard key 171 to the canventional keyway 148,149 in the shaft. The component is useful in the flange-mounting of different electric motors on off the-shelf gear units.
Patent CA-2104857-C (CA)
Inventor: GRIFFITHS CHRISTOPHER NEIL
IPC: A61L2/14
Filed: 1992-02-20
Granted: 2002-05-14
Abstract: A method of sterilising objects including the op-erations of activating a gaseous medium, ensuring that the activated medium is substantially free of charged spe-cies and exposing the object to be sterilised to the activat-ed gaseous medium for a period sufficient to ensure that the object is sterilised.
Patent CA-2108621-C (CA)
Title: Process for the preparation of mono- or diacetoxyindole
Inventor: LIM MU-ILL
IPC: C07B61/00
Filed: 1993-10-18
Granted: 2005-06-28
Abstract: An indole of the formula (see formula I) wherein R5 and R6 are acetoxy or hydrogen, at least one of R5 and R6 being acetoxy, is prepared, in good yield, in a one pot synthesis, without extraction, recrystallization or isolation of intermediate reaction product; A compound of the formula (see formula II) wherein R1 and R2 are benzyloxy or hydrogen, provided that at least one of R1 and R2 is benzyloxy, is subjected to reductive cyclization followed by acetylation of the resultant reaction product.
Patent CA-2110982-C (CA)
Title: Vascular occlusion removal devices and methods
Inventor: DANCE CREG W
IPC: A61M1/00
Filed: 1992-06-19
Granted: 1998-09-29
Abstract: A catheter (10) for removing vascular obstruction(s) is disclosed. The catheter employs a configuration comprising generally coaxial, rapidly rotatable drive cable (14), fluid output lumens or channels (48), and fluid input lumens or channels (30). The drive cable is fixedly coupled to an elongate head (16) so as to permit the head to be rapidly rotated by the drive cable. The head includes flats or impellers (26) which, when rapidly rotated, generate a zone of turbulence or a vortex adjacent the vascular obstruction. The turbulence generated by the device tends to break up or dismantle the obstruction. The fluid input and output mechanisms permit fluid to be delivered to the vicinity of the obstruction and debris from the obstruction to be removed. Methods for removing vascular obstructions are disclosed. Preferably pulsatile turbulence generation is employed.
Patent CA-2113512-C (CA)
Inventor: PELLERIN ROMAIN
IPC: A01K5/02
Filed: 1994-01-14
Granted: 1996-08-13
Abstract: The apparatus is provided for automatically distributing hay for feeding livestock scattered along a predetermined path along which an overhead beam extends. The apparatus comprises a driving unit moving along the beam. The driving unit has a carriage mounted onto the base and provided with wheels mechanically connected to the beam and to an electrical motor for moving the apparatus along the beam. The apparatus supports a hay bale, more particularly a rolled hay bale, with the use of a rod having an end for connection with the driving unit and an opposite end connected to a supporting member supporting the hay bale. The apparatus also has a winch mounted on the driving unit base for lifting and lowering the hay bale.
Patent CA-2114631-C (CA)
Title: N-acetylglucosaminyltransferase v coding sequences
Inventor: PIERCE J MICHAEL
IPC: C12N15/54
Filed: 1993-06-29
Granted: 2005-03-01
Abstract: The present invention provides a substantially purified UDP-N-acetylglucosamine:.alpha.-6-D-mannoside .beta.-1,6-N-acetylgluco-saminyltransferase (GlcNAcT-V; EC 2:4.1:155) and antibodies which specifically bind GlcNAc T-V. The present invention also provides polynucleotide sequences and oligonucleotide probes capable of specifically hybridizing to nucleic acid sequences which encode GlcNAc T-V, and cDNA and genomic clones encoding GlcNAc T-V, as well as nucleotide sequences encoding GlcNAc T-V, as: specifically exemplified by, a GlcNAd T-V coding sequence from rat.
Patent CA-2117748-C (CA)
Inventor: FETCENKO MICHAEL A
IPC: H01M50/491
Filed: 1993-05-05
Granted: 1997-03-25
Abstract: A rechargeable hydrogen storage cell comprising a negative electrode having the composition: (Ovonic Base Alloy)aMb where Ovonic Base Alloy represents an Ovonic alloy that contains 0.1 to 60 atomic percent Ti, 0.1 to 25 atomic percent Zr, 0.1 to 60 atomic percent V, 0.1 to 57 atomic percent Ni, and 0.1 to 56 atomic percent Cr, as described above; a is at least 70 atomic per cent; M represents at least one modifier chosen from the group consisting of Co, Mn, Al, Fe, W, La, Mo, Cu, Mg, Ca, Nb, Si, and Hf; b is 0 to 30 atomic percent; b > 0; and a + b = 100 atomic percent; a positive electrode; and a separator of electrolyte ret-entive nylon or wettable polypropylene.
Patent CA-2120639-C (CA)
Inventor: LARUE FRANCOIS
IPC: B64D15/20
Filed: 1994-04-06
Granted: 2004-03-23
Abstract: A method and an apparatus for detecting and identi-fying a contaminant, such as ice, on the surface of a structure, such as a wing, are disclosed. The apparatus has a probe having a delay block with an interface apt to be placed flush with the surface of the structure and two faces at the same angle of inclination relative to the interface and having transmission and reception trans-ducers each oriented perpendicularly to one of the faces.      The block has an acoustic impedance lying in the range of 0.7 to 3 x 10 6 kg/m2.s. It further has an energization and analysis unit for applying an electrical energization pulse to the transmission transducer and comparing the amplitude and the phase of the echo from the interface with a reference echo corresponding to no contamination.
Patent CA-2124366-C (CA)
Inventor: STIEF REINHARD
IPC: G10K11/172
Filed: 1994-05-26
Granted: 1999-01-26
Abstract: A sound absorbing shaped part includes at least two chambers which are adjacent in direction of incoming sound vibrations and during the intended use together with a carrier for the part delimit an interior space 3 which functions as an air-spring and is hermetically sealed to ambient. The chambers are each delimited by a chamber wall of polymeric material, whereby the chamber walls are joined into one piece and are relatively movably connected by an intermediate elastic element which is elastically deformable at least in direction of the incoming sound vibrations. The shaped part is more easily and economically manufactured and provides sound absorption over a wider range of frequencies.
Patent CA-2132397-C (CA)
Title: Process for the preparation of zirconia
Inventor: BLANKENSTEIN PAUL
IPC: C10G2/00
Filed: 1994-09-19
Granted: 2004-11-30
Abstract: A process for the preparation of a zirconia precursor comprises contacting a solution of an acidic zirconium compound with a solution of a basic zirconium compound to form a gel. A shapable dough may be formed by rendering the zirconia precursor shapable, for example by drying the zirconia precursor or combining the zirconia precursor with a solid filler. The shapable dough may be shaped, for example by extrusion, to form a shaped zirconia precursor, which in turn may be dried and calcined to form shaped zirconia particles. The shapable dough may be prepared so as to comprise a source for a catalytically active component, in which case the shaped zirconia particles may be used directly as a catalyst. A source of a catalytically active component may be deposited on the shaped zirconia particles to yield a finished catalyst.
Patent CA-2134749-C (CA)
Title: A device for separation of solid particles from a liquid mixture
Inventor: NORDLOF JONAS HANS OLOV
IPC: B01D24/46
Filed: 1993-05-03
Granted: 1998-01-27
Abstract: In a rotatable filter, such as a disk filter, for separating solid panicles from a liquid mixture, in which a filter material (3) is partially immersed, a cake-removal member (11) is designed to take off a layer of the formed cake of solid particles from the filter material, so that a liquid-permeable coating, which itself acts as a filter medium, is left on the filter material which is moved down into the liquid mixture which is to be separated. According to the invention, for renewing the said coating a spraying means (13-11) is designed to spray jets of liquid in at least one spray zone (18), through which only a part of the filter material passes upwards during the rotating movement of the filter material, so that the whole cake of coarse particles, including the coating, is removed from the said pan of the filter material by the jets of liquid.