baber/WOPTO huggingface dataset:
Patent CA-2121468-A1 (CA)
Title: Polymerisable compositions
Inventor: ASHTON DAVIE P
IPC: C08K3/00
Filed: 1992-11-11
Abstract: Highly filled, curable compositions containing a curable liquid, e.g. methyl methacrylate; 20 to 80 % by weight of a finely divided inorganic filler of defined particle size, e.g. silica; a non-functionalised polymer containing a low Tg component which is soluble in the curable liquid, e.g. a non-functionalised vinyl aromatic/conjugated diene block copolymer; and other components which disperse the filler in the curable liquid and couple the filler to the matrix can be used to produce cured composites which show improved resistance to stress induced by thermal cycling.
Patent CA-2121837-A1 (CA)
Title: Balanced flow tobacco smoke filter
Inventor: BERGER RICHARD M
IPC: A24D3/04
Filed: 1992-10-08
Abstract: ABSTRACT OF THE DISCLOSURE       A cigarette filter having a core of synthetic fibrous material and an outer plug wrap is provided with a group of longitudinal bores and a group of peripheral channels in the core to improve the filtration efficiency and to balance the distribution of smoke flow over the cross-sectional area of the filter.
Patent CA-2124803-A1 (CA)
Inventor: SCHEER GERHARD
IPC: B23B31/107
Filed: 1992-11-24
Abstract: A TOOL COUPLING WITH A RADIALLY ELASTICALLY         EXPANDABLE COUPLING SLEEVE AND A SHAFT WITH A CLAMPING BODY                 ABSTRACT OF THE DISCLOSURE      A device for linking two tool parts has a projecting shaft (12) on the first tool part (10), as well as an annular surface (20) that surrounds the shaft (12) at its root, and a projecting coupling sleeve (16) on the second tool part (14) that has a cavity (18) for receiving the shaft (12) and a front face (22) that can be pressed against the annular surface (20) during clamping.  In order to achieve, besides end face clamping, also a self-centering radial clamping of the shaft (12) within the coupling sleeve (16), the shaft (12) has a cavity (24) axially open towards the front face end of the shaft and a clamping body (28) axially movable within the cavity (24).  The clamping body (20) is loosely screwed with an outer thread (72) in an inner thread (70) of the hollow shaft and secured against rotation.  The wall (38) of the cavity is sized so that it can elastically bulge or expand in the radial direction over the slanted flanks (26, 30) of the thread and be pressed against the inner side of the coupling sleeve (16) when the clamping body (28) is pressed in the axial direction.
Patent CA-2127689-A1 (CA)
Inventor: JANSSEN MARCEL A C
IPC: C07D471/04
Filed: 1993-01-20
Abstract: Pyrroloimidazolyl and imidazopyridinyl substituted 1H^_-benzimidazole derivatives having formula (I) wherein n is 0 or 1; R1 is hydrogen, nitro, amino, mono- or diC1-6alkyl)amino, halo, C1-6alkyl, hydroxy or C1-6alkyloxy; R2 is hydrogen;  C1-10alkyl; C3-6alkenyl; C3-6alkynyl; C3-7cycloalkyl; phenyl;  substituted phenyl; C1-4alkyl substituted with phenyl, substituted phenyl, naphthalenyl, thienyl, furanyl, C1-4alkylfuranyl, C3-7cycloalkyl; and R3 is hydrogen, C1-8alkyl; C3-7cycloalkyl;  hydroxy, amino; C1-6alkyloxy; C1-6alkyloxycarbonylamino;  phenyl; C1-4alkyl substituted with phenyl, piperazinyl, 4-(C1-4alkyl)piperazinyl or morpholinyl; each substituted phenyl independently is phenyl substituted with a substituent independently selected from halo, hydroxy, hydroxymethyl, trifluoromethyl, C1-6alkyl, C1-6alkyloxy, C1-6alkyloxycarbonyl, carboxyl, formyl, (hydroxyimino)methyl, cyano, amino, mono- and di(C1-6alkyl)amino and nitro, having sex hormone synthesis inhibiting properties.  Compositions containing said compounds of formula (I). Preparations of said compounds and compositions, and use thereof for treating mammals suffering from sex hormone disorders.
Patent CA-2128023-A1 (CA)
Inventor: THOMAS TODD R
IPC: C09K8/38
Filed: 1994-01-14
Abstract: In the removal of particulates from a wellbore, such as in air drilling for hydrocarbon recovery, a mixture of an amphoteric foaming agent and, typically, an anionic surfactant is employed. An aqueous solution thereof having a pH of at least 9.5 is used to generate a foam for removing the particulates; then the foam is collapsed by the introduction of acid to reduce the pH below about 4, the particles are removed mechanically, the pH is restored to greater than 9.5, and the foaming solution is returned to the wellbore. The solution may be used several times; partial losses of foaming agent in the process may be easily replenished with each cycle. Cationic surfactants may be used instead of anionic, with foaming and foam collapse being controlled at opposite pH's. Savings are realized in water, drilling chemicals, and settling pits and the like for removing particulates from the foam.
Patent CA-2128065-A1 (CA)
Title: Method for preventing emergence of algae and antialgal composition
Inventor: USHIO KAZUMICHI
IPC: A01N59/16
Filed: 1994-07-14
Abstract: ABSTRACT OF THE DISCLOSURE A method for inhibiting or preventing emergence and growth of algae, comprising use of a germanium compound and a herbicide, and an antialgal composition comprising a germanium compound and a herbicide.  The method of the present invention inhibits and prevents emergence and growth of algae, and can be used safely with little influence on aquatic animals.  The method is advantageously used for a fish tank in which fish for appreciation is kept, so as to keep good appearance of the tank and to reduce burden of cleaning the tank by preventing emergence and growth of attached algae.  Particularly, the composition for artificial seawater of the present invention shows no toxicity to marine animals to be raised in the artificial seawater prepared using the composition of the invention, and can inhibit and prevent emergence of algae. Therefore, the composition of the invention can be beneficially used for raising, culture, study, and the like of marine animals.  Moreover, the composition of the present invention which is coated on a fish net, a hull, or the like can result in inhibition and prevention of emergence and growth of algae in the environment where influence on fish, etc. is very little.
Patent CA-2129470-A1 (CA)
Inventor: ENGEL HANS O
IPC: F16K37/00
Filed: 1994-08-04
Abstract: DIAGNOSTIC SYSTEM FOR CONTROL AND SHUT-OFF VALVES                          ABSTRACT A diagnostic system for control and shut-off valves uses a processor of an intelligent position controller as a digital signal processor which is connected to sensors monitoring the operation of the valve and measuring working parameters of the valve so that any deviation of measured values from initial values taken and stored is compared and analyzed to predict impending error/failure conditions. Early preventive maintenance is indicated and alarm signals are outputted for objectionable valveoperation.
Patent CA-2131490-A1 (CA)
Title: Sieve Apparatus for Combine
Inventor: TRUCKENBROD THOMAS G
IPC: A01F12/44
Filed: 1994-09-06
Abstract: A sieve assembly for a combine comprises a frame including side and divider members, a wire rotatably supported on and extending transversely between the side members and including a major portion axis and an offset portion and at least one slat mounted on the wire and including first and second wire securing means.  The first wire securing means includes a first pocket for removably receiving the major wire portion and an arrangement, such as deflectable finger, for positively locking the major portion in the first pocket to prevent accidental displacement of the slat from the wire.  The second wire securing means has a second pocket for removably receiving the offset portion to prevent rotational movement of the wire relative to the slat.          In one embodiment, the side and divider members of the frame have circular apertures through which the wires extend. The inside diameter of these apertures are approximately the same, but slightly greater than, the outside diameter of the wire.  The offset wire portion includes a longitudinally leg spaced from and parallel to the major portion and a pair of angled connecting legs connected between opposite ends of the retaining leg and the major portion and having bends at those connections.  The angle of the connecting legs and the radii of the bends are such that the offset wire portion can be guided through the side and divider member apertures during assembly of the sieve assembly.
Patent CA-2134929-A1 (CA)
Title: Roof tile
Inventor: FIFIELD JOHN A
IPC: E04D1/04
Filed: 1994-11-02
Abstract: ABSTRACT   An extruded roof tile 30 has an upper surface 11, which is contoured to give theappearance of a profiled tile and which is, for example provided by projections 30, 34 extending between the upper and lower edges 13 and 14a respectively of the tile, and cm under surface 12 having a shape which is other than a contoured shape which generally follows that of the upper surface 11 of the tile 30. For example, the undersurface 12 may have a shape which corresponds to that of a flat tile. In one method of making the tile 30, a material from which the tiles 30 are made is extruded onto a path which shapes the under surface 12 of tiles 30, the material is compressed to provide the upper surface 11 of tiles 30 with a contoured shape, for example provided by the projections 32 and 34, the under surface 12 of tiles 30 is provided with a shape which is other than a contoured shape which generally follows that of the upper surface 11 of tiles 30 and the contoured appearance of the upper surface 11 of tiles 30 is changed without changing the shape of the under surface 12 of tiles 30.
Patent CA-2136356-A1 (CA)
Title: 1,2,3-triazole and imidazole compounds and their antitumor use
Inventor: KOHN ELISE C
IPC: A61K31/4164
Filed: 1993-06-08
Abstract: A discovery underlying this invention is the concordance between particular cellular signaling mechanisms and cancer cell growth and metastasis. It has now been discovered that the compounds   inhibit the signal transduction required for the maintenance and driving of the malignant process. These compounds are also effective for the in vivo treatment of solid tumors and related disease states. This invention provides uses for the compounds to inhibit invasion and metastasis of solid tumors, and for the treatment of diseases involving aberrant signal transduction pathways.
Patent CA-2138168-A1 (CA)
Title: Metal matrix composite
Inventor: MORETON ROGER
IPC: C22C21/12
Filed: 1993-05-27
Abstract: A magnesium-free aluminium alloy suitable for use as the matrix alloy in a metal matrix composite material is disclosed which overcomes the drawback of the rapid natural ageing response exhibited by prior art alloys. This facilitates greater flexibili-ty in manufacturing with metal matrix composites because of the improvement in fabricability. The alloy composite comprises 1 to 50 % by weight of reinforcing material embedded in a matrix alloy having the following composition in proportions by weight: copper 4 - 6 %, aluminium the balance, save for incidental impurities, and further comprising one of the grain refining additives from the group comprising zirconium, manganese or chromium in an amount up to 0.5 % by weight.
Patent CA-2142652-A1 (CA)
Inventor: WINNER KEVIN D
IPC: E05B17/00
Filed: 1995-02-16
Abstract: A security device useful in preventing the theft of bicycles, mopeds and the like comprises a generally U-shaped shackle member having two parallel arms connected to one another by an intermediate bight.  A second member, either U-shaped or a bar extends between and engages both of said arms and is moveable axially therealong toward or away from the bight.  Locking means coact with said second member and at least one of said arms to fix the position of the second member with respect to the arms.  The use of longitudinally spaced semicircular grooves on one or both arms cooperating with a spring biased spherical bearing means associated with the second member permits it to be freely positioned along the shackle member. A lock mechanism is used to engage one of said grooves  to lock  the  bar  in  position.    Alternatively, positioning of the second member may be achieved by the use of a pawl and ratchet arrangement which allows the second member to be freely movable in either direction along the arms when the device is unlocked, but only in the direction toward the bight when the device is locked.  The locking member may be a combination lock or may be activated by a key or remote transmitter.   When the device includes grooves or ratchet teeth along both arms,  a singular lock may be used to simultaneously or sequentially co-act with the two arms. Alteratively, two separate locks may be utilized.  The device may also include a compressible and extendible rubber or elastomeric boot preferably in the form of bellows.  This boot provides a protective cover around ratchet teeth or semi-circular grooves that are longitudinally spaced along one of the arms of the U-shaped member.   The boot progressively surrounds  the  ratchet  teeth  or  grooves  as  the  rod  is disengaged or withdrawn from the sleeve.  Additional means comprising plastisol coatings and bubble wrap material may be included to protect the various elements of the device and the bike from damage and wear.
Patent CA-2143712-A1 (CA)
Title: Steelmaking degassing method and apparatus
Inventor: KEILMAN LEONARD MARK
IPC: C21C7/10
Filed: 1995-03-01
Abstract: A method for degassing molten steel comprises the use of a lift gas which includes carbon dioxide.  The inventive method includes providing a reaction zone isolated from the ambient atmosphere, and providing a bath of molten steel, at least a portion of which is located in the reaction zone.  The pressure is reduced in the reaction zone to a sub-atmospheric pressure.  A gas comprising carbon dioxide is supplied to the bath of molten steel in order to vertically circulate the molten steel.  The method also preferably includes (a) supplying carbon dioxide, e.g., with a tuyere, to the reaction zone and (b) supplying carbon dioxide to the bath of molten steel, e.g., by gas bubbling or stirring. An apparatus for performing the method steps is also disclosed.
Patent CA-2147428-A1 (CA)
Title: Compartmentised box and knapsack incorporating same
Inventor: SCIACCA VINCE
IPC: A01K97/06
Filed: 1995-04-20
Abstract: A compartmentised box (20) and a knapsack (10) incorporating same.  The knapsack (10) has straps (16) allowing carrying of the compartmentised box (20) on a person's back. The compartmentised box (20) has columns (30) formed of a plurality of panels (23) for supporting a plurality of containers (32) and for allowing the containers (32) to be slid in and out of the compartmentised box (20).  Edgewise adjacent ones of the panels (23) can be disconnected from each other and the panels rearranged to allow containers (32) of differing sizes to be slid into the compartmentised box (20) so that the knapsack (10) can be readily restocked with any desired arrangement of the containers (32).
Patent CA-2148953-A1 (CA)
Inventor: PRIEST JOHN F
IPC: G01B17/02
Filed: 1995-05-09
Abstract: The invention is a method of determining the thickness of a casing in a wellbore penetrating an earth formation using group delay determined casing resonance extracted from processed reflection signals from an acoustic pulse-echo imaging tool. A first Fourier transform coefficient series is calculated from the digitized reflection signal. Individual samples of the reflection signal are multiplied by their sample index values to obtain a modified digitized data string. A second Fourier transform coefficient series is calculated from the modified digitized data. The complex group delay function is calculated directly from the first and second Fourier coefficient series.
Patent CA-2149232-A1 (CA)
Title: Rod Rotating Tool
Inventor: KELLY MICHAEL W
IPC: B25B13/50
Filed: 1993-11-12
Abstract: A tool (10) for rotating a rod is provided which is formed of three members. A first member (14) is formed as a sleeve and has an internal opening size to receive the rod. This sleeve (14) has a tapered portion (28) which is placed over the rod. A second member (30), which may also be in the form of a sleeve, slips onto the first sleeve (14). A third member sleeve (40) is axially fixed to one of the first (14) and second (30) members and engages against the other member. A mechanical arrangement is provided to selectively urge the third sleeve (40) apart from the other members against which it engages in order to move the second member (30) and the first member (14) relative to one another to collapse the end of the first member (14) engaging the rod. The first member (14) has a shaped contour (18) for receiving a torque applying device.
Patent CA-2149250-A1 (CA)
Title: Linear voltage-controlled resistance element
Inventor: TSIVIDIS YANNIS
IPC: H01L29/78
Filed: 1993-10-12
Abstract: The channel resistance of a MOSFET is made independent of VS-VD  by maintaining the ends of the gate electrode (24) adjacent the source (20) and drain (22) regions at an offset voltage with respect to the source and drain regions, respectively, and by maintaining the portions of the body regions adjacent to the source and drain regions at another offset voltage with respect to the source and drain regions, respectively. In this manner, VS-VD appears across the channel, across the gate, and across the body region beneath the channel. The resulting linear voltage drops along each of the three causes the channel-to-gate and channel-to-body potentials to be constant along the entire length of the channel, thereby avoiding variations in the number of carriers, mobility variations and body effect in the channel.
Patent CA-2151333-A1 (CA)
Title: Low oxygen molding of soft contact lenses
Inventor: MARTIN WALLACE ANTHONY
IPC: C08K5/55
Filed: 1995-06-08
Abstract: A process and a system for providing essentially fully degassed complementary concave and convex lens molds to filling and mold assembly stations, respectively, in a continuous or semi-continuous automated soft contact lens manufacturing system. The process comprises injection molding the lens molds and immediately transferring the lens molds to an inert gas atmosphere. The lens molds are degassed and are then filled with a polymerizable monomer under the inert gas prior to mold assembly.
Patent CA-2151421-A1 (CA)
Title: Fabric softener sheet dispenser
Inventor: CHESSON SHARON
IPC: B65D83/08
Filed: 1995-06-09
Abstract: A carton for housing sheets,  particularly dryer sheets.  The dryer sheets are preferably stacked in a "U" shape and are removed via an access  flap which may include two hinges and may be reclosable.
Patent CA-2151809-A1 (CA)
Title: Flourinated monomers and polymers
Inventor: FEIRING ANDREW EDWARD
IPC: C08F14/18
Filed: 1993-07-09
Abstract: Disclosed herein are novel monomers of the formula CF2=CF(CF2)n CH2OCF=CF2, wherein n is 1,2 or 3, and novel intermediates of the formula CF2C1CFC1(CF2)n CF2OCF=CF2 wherein n is 1, 2 or 3. Also disclosed is a fluoro-polymer containing cyclic units when the monomer wherein n is 1 is free radically polymerized. The polymer is particularly useful in for coatings and encapsulants.
Patent CA-2153383-A1 (CA)
Title: Method and apparatus for rendering images
Inventor: HOEL JEFFREY H
IPC: G09G5/24
Filed: 1995-07-06
Abstract: A rendering device for converting input information into a bit map including a Bezier subdivision processor responsive to Bezier curve information describing a Bezier curve of an image. The Bezier subdivision processor performs at least one subdivision on the Bezier curve if the Bezier curve is greater than a desired resolution of a bit map to produce subdivided Bezier curves until all subdivided Bezier curves are at about the resolution of the bit map. The Bezier subdivision processor produces cross information from each Bezier curve which makes one crossing of a grid having the resolution of the bit map. The rendering device also includes a digital processor responsive to the cross information and operative to produce a bit map of the image from the cross information. A method for producing cross positions of Bezier curves with a grid of the present invention includes receiving a Bezier curve, sequentially subdividing the Bezier curve into a plurality of subdivided Bezier curves until each Bezier curve crosses less than a plurality of times with cell boundaries of a grid of a desired resolution, and developing the Cartesian coordinates and direction of each of the crosses of a Bezier curve with a boundary.
Patent CA-2154942-A1 (CA)
Inventor: ZUCKERMAN MARTIN
IPC: E05B17/00
Filed: 1995-07-28
Abstract: A tubular lock assembly comprising a latch assembly, an interior operator assembly including a half round portion for operating the latch assembly when rotated from a neutral orientation, a cylindri-cal coupler including a body portion, an axial bore extending through the body portion, a slot extending through the body portion for receiving the half round portion  so that the half round portion  and the cylindrical  coupler  will  rotate  conjointly,  and coupling tang means extending axially from the body portion, a cam assembly including a cylindrical cam support,  spindle means supported within the body portion axial bore for supporting the cylindrical cam support for selected rotation, a cam on the cylindri-cal  cam  support,  a  hub  assembly  comprising  a cylindrical  housing  having  a  cylindrical  inner surface for sliding engagement with the cylindrical cam support so that the cylinder housing can be displaced between axially spaced remote and coupling position relative to the cylindrical cam support, a cam follower secured to the inner surface, a coupling means cooperating with the tang means when the hub assembly is displaced from the remote position to the coupling position to rotatively interconnect the hub assembly and the cylindrical coupler.
Patent CA-2154963-A1 (CA)
Inventor: JAUTELAT MANFRED
IPC: C07C315/04
Filed: 1995-07-28
Abstract: Nitroaromatics can be amidated using amides in the presence of bases and oxygen; the corresponding amines are accessible by hydrolysis of the amides formed.
Patent CA-2156446-A1 (CA)
Inventor: JOHNSON STANLEY JEROME
IPC: G01N27/72
Filed: 1995-08-18
Abstract: A metal detector has three magnet/coil units positioned end-to-end.  Each magnet/coil unit has a generally rectangular bobbin supporting a coil and a pair of bar magnets at opposite ends thereof.  The three coils are connected electrically in a three-phase "Y" configuration.  The voltages generated by all three coils are received by a microprocessor-based signal processing unit (SPU).  The SPU generates a three difference signals V(x-y), V(y-z) and V(z-x) which represent the differences between the individual coil voltages.  The SPU generates a sum signal representing a sum of the absolute values of all the difference signals and generates a trip signal if the sum signal is greater than a threshold.  The SPU determines over which side of the coil assembly the piece of metal passes by comparing to a threshold the difference signal corresponding to a difference between the voltages from the coils at opposite ends of the coil assembly. The SPU more precisely determines the position of the piece of metal by comparing the difference signals to each other.