baber/WOPTO huggingface dataset:
Patent CA-2008962-A1 (CA)
Inventor: PAUL KERMIT D
IPC: B65G53/36
Filed: 1990-01-26
Abstract: ABSTRACT OF THE DISCLOSURE        A method and apparatus is provided for blending solid particulate material in a vessel which includes a center lift column and a first downcomer channel which includes n successive vertical sections and n flow ports respective located at a top portion of the n sections.  The n sections include withdrawal structure for providing a volumetric outlet flow rate which includes a flow rate contribution from each of the n sections which is 1/n of the outlet flow rate.  The apparatus can also include a second channel which includes a plurality of vertically spaced inlets fox receiving particulate material from different vertical locations within a blending vessel of the apparatus and an outlet for returning particulate material to the lower part of the vessel, with each of the inlets of the second channel including a baffle extending into an internal flow area of the channel.  A discharge spout is connected to the outlet of the second channel and recycles a portion of the particulate material at the outlet to the lower part of the vessel and withdraws another part of the particulate material at the outlet to a conveying line outside the vessel.
Patent CA-2010067-A1 (CA)
Title: Reducing pipeline delays in compilers by code hoisting
Inventor: HOXEY STEVEN M
IPC: G06F9/45
Filed: 1990-02-14
Abstract: REDUCING PIPELINE DELAYS IN COMPILERS BY CODE HOISTING                 ABSTRACT    This  invention permits  an optimizing compiler to minimize  the  effect  of  pipeline  delays,  which  are typically introduced by branching code.   This invention employs code hoisting to introduce computations from lower regions of the flowgraph,  into regions where pipeline delays are known to occur.
Patent CA-2010310-A1 (CA)
Title: An improved method to prepare trimethylsulfonium halides
Inventor: NEWALLIS PETER E
IPC: C07C381/12
Filed: 1990-02-19
Abstract: Trimethylsulfonium halides are made by reacting dimethyl sulfide and a methyl halide in the presence of water. The reaction is preferably conducted under pressure.
Patent CA-2015032-A1 (CA)
Title: Naphthalenylalkyl-3h-1,2,3,5-oxathiadiazole 2-oxides useful as antihyperglycemic agents
Inventor: ALESSI THOMAS R
IPC: C07D291/04
Filed: 1990-04-20
Abstract: ABSTRACT     This invention relates to novel [(substituted naphthalenyl)alkyl]-3H-1,2,3,5-oxathiadiazole 2-oxides, to the processes for their preparation, to methods for using the compounds, and to pharmaceutical compositions thereof. The compounds have pharmaceutical properties which render them beneficial for the treatment of diabetes mellitus and associated conditions.
Patent CA-2016906-A1 (CA)
Inventor: MARTEN JEROME H
IPC: C10J3/14
Filed: 1990-05-16
Abstract: Abstract of the Disclosure The present invention relates to the coproduction of a combustible gas stream usable as an energy source, a sulfur-dioxide-containing second gas stream usable as a source of oxidant in the gasification of coal, and a sulfur-dioxide-containing third gas stream usable as a feedstock for the production of sulfuric acid.  The process includes heating coal in a coal gasification zone in the presence of an oxygen and sulfur dioxide-containing atmosphere under partial coal gasifying conditions to produce a carbonaceous char and a crude coal gas stream.  Sulfur-containing compounds are removed from the coal gas stream and converted to elemental sulfur. The carbonaceous char is combined with gypsum to form a feed mixture.  The non-gypsum portion of the feed mixture contains sufficient reducing potential to release substantially all of the sulfur in the gypsum as gaseous compounds of sulfur in a +4 or lower oxidation state.  The feed mixture is heated under reducing conditions to produce a sulfur-dioxide-containing second gas stream recovered at an early stage of the reaction, a sulfur-dioxide-containing third gas stream and a solid sintered product.  The sulfur-dioxide-containing second gas stream is recycled back to the gasification zone to provide the oxidant for the coal gasification.
Patent CA-2017295-A1 (CA)
Title: Polyvinyl chloride resin composition
Inventor: IGARASHI TOSHIO
IPC: C08L27/06
Filed: 1990-05-22
Abstract: ABSTRACT       In order to reduce deterioration due to heat or light of the color or luster of PVC mouldings, particularly soft, surface textured mouldings formed by powder moulding, a PVC composition utilized to form the mouldings incorporates 0.01% to 5% by weight of a hindered amine light stabilizer having the formula   in which R1, R2, R3 and R4 are each a lower alkyl group and R5 is an alkylene or terminal acetyl group.
Patent CA-2017308-A1 (CA)
Title: Process of regenerating a high-boiling scrubbing solution which contains co2 and h2s
Inventor: KRIEBEL MANFRED
IPC: C10G70/04
Filed: 1990-05-22
Abstract: The scrubbing solution has a boiling point above 100°C under atmospheric pressure and is used for gas purification at temperatures from 5 to 70 °C and is thus laden with at least CO2 and H2S. For regeneration, the laden scrubbing solution under a pressure of at least 2 bars and at a temperature of at least 60°C is supplied to an expansion zone and is expanded therein, A flashed-off gas which is rich in H2S is withdrawn from the expansion zone. The scrubbing solution from the expansion zone is subjected to a hot regeneration, by which the scrubbing solution at a temperature below its boiling temperature is stripped with an inert gas so that its residual loading is substantially removed. Mixed gases which contain inert gas are withdrawn from the hot regeneration and are contacted with scrubbing solution.
Patent CA-2020055-A1 (CA)
Title: Inspection apparatus for tubular members
Inventor: CRUICKSHANK JOHN S
IPC: E21B47/00
Filed: 1990-06-28
Abstract: ABSTRACT            INSPECTION APPARATUS FOR TUBULAR MEMBERS      An inspection apparatus for the internal inspection of tubular members has a body 1 adapted for insertion into the tubular member and the body has an inspection window 2.  A projection means including a laser 14 and associated reflectives 13, 10 and 9, the reflective 9 being rotated by a motor 7, is directed such that a beam of radiant energy is directed through the window to illuminate an axial extending strip of the entire 360° interior circumference of the tubular member.  Light reflected from the tubular member passes through the window 2 and is reflected by reflective 8 onto a camera 12 which, via transmitting circuitry 16 transmits the image ring C and the light reflected by the window B back to a monitor 51 at the well head and to a computer 52 where the data transmitted from the camera is correlated with predetermined data values to determine damage to the interior surface of the tubular member such as ovality or corrosion.     Where the inspection apparatus is to be inserted into a tubular member containing liquid, in a feature of the invention, a device is provided for cleaning the inspection window and for maintaining the inspection window free from liquid.  Such a device includes a reciprocal axially movable cam/wiper ring 29 having an interior surface provided with means for cleaning the window and an outer surface which is adapted to engage with a plurality of spring fingers 18 which support a membrane 19.  When, in operation, the spring fingers are raised by the ring 29 the ring cleans the window and in moving axially upwardly moves the spring fingers 18 radially outwardly to engage with the interior surface of the tubular member to be inspected.  At substantially the same time as the spring fingers are raised, an inert gas is directed below the membrane so as to form a gas bubble that covers the window 2 so that the radiant energy has a clear passage from the window to the interior surface of the tubular member to be inspected.
Patent CA-2020459-A1 (CA)
IPC: H01H85/43
Filed: 1990-07-04
Abstract: An electrically conductive expulsion fuse manifold and bus for connecting and mounting a plurality of fuses which upon operation expel gases into the manifold is shown and described.  The expulsion fuses are attached to the manifold by means of clamps, flanges, and/or threaded connections.  Each expulsion fuse includes an expendable cap which may be blown off into the manifold under high magnitude capacitor discharge currents and/or fault currents for safe double-vented fuse operation.  The manifold may also be non-conductive where electrical isolation is required and where a separate electrically conductive bus is employed.
Patent CA-2027427-A1 (CA)
Title: Plug for sealing wood preservative in wood structures
Inventor: LAIDLAW WILLIAM S
IPC: B27K3/02
Filed: 1990-10-12
Abstract: ABSTRACT OF THE DISCLOSURE      The present invention relates to a plastic plug for sealing wood preservative in holes drilled in wood structures. Wood plugs currently in use are difficult to remove and are generally not suitable for re-use. This makes it difficult to retreat existing holes with preservative. The plastic plug can either be driven or screwed into position. The plug is removed by unscrewing it. It can be removed for retreatment and can be re-used. The plug provides a consistant seal. A variation of the plug allows preservative to be inserted through the plug without its removal. A seal made of rubber or other flexible material is disposed within the interior of the plug. This seal has a pair of crossed slits. The construction is such that the seal will ordinarily prevent preservative from escaping through the interior of the plug but which will allow introduction of preservative by insertion of a probe which will spread apart the lips formed by the slits.
Patent CA-2029423-A1 (CA)
IPC: D04B35/02
Filed: 1990-11-07
Abstract: ABSTRACT OF THE DISCLOSURE    A knitting tool for textile machines has a shank which, beginning at its upper and/or lower edge, is provided in at least some regions with a slot-like recess extending in the longitudinal direction of the shank and forming a hollow space that is filled with vibration damping plastic material.
Patent CA-2029695-A1 (CA)
Title: Disk gang roadway conditioning tool
Inventor: SKIBSTED ERIC T
IPC: E01H1/00
Filed: 1990-11-09
Abstract: ABSTRACT         A surface conditioning attachment for a motor grader or the like for use in maintenance operations on gravel roadways comprises a gang of harrow disks carried on a support shaft, there being a support structure for deploying said disks laterally outwardly of the grader and at an angle to the direction of travel and with the concave sides of the disks facing forwardly.  In use the gang of disks engages the surface of the road shoulder and cuts up and moves gravel and vegetation thereon laterally towards the roadway.
Patent CA-2029882-A1 (CA)
Title: Asymmetric catalytic hydrogenation of alpha-arylpropenoic acids
Inventor: CHAN ALBERT S
IPC: B01J31/24
Filed: 1990-06-22
Abstract: 07-21(651)A        ABSTRACT Process for preparing .alpha.-arylpropionic acids by catalytically asymmetrically hydrogenating .alpha.-arylpropenoic acids utilizing an asymmetric hydro-genation catalyst at low temperatures and, optionally, at high pressures.
Patent CA-2031546-A1 (CA)
Inventor: COOK HENRY
IPC: E06B9/00
Filed: 1990-12-05
Abstract: ABSTRACT OF THE DISCLOSURE       A control unit for single and double track blinds is provided and consists of a sprocket wheel having a hub rotatably carried in the center of a passageway within a housing.  An operating handle extends into the hub that extends through a central aperture in a front cover plate on the housing.  The operating handle can be turned to rotate the sprocket wheel, thus driving a bead chain through the passageway to operate louvers in the single and double track blinds.
Patent CA-2033591-A1 (CA)
Title: Imidized segmented copolymers
Inventor: ILENDA CASMIR S
IPC: C08L53/00
Filed: 1991-01-03
Abstract: ABSTRACT Segmented copolymers having one or more segments of a polyolefin and one or more segments predominantly formed from (meth)acrylate esters can be reacted, preferably in a devolatilizing extruder, in the presence of ammonia  or primary amines to produce a polymer having one or more segments of polymer containing cyclic imide groups. The resulting segmented copolymers are useful for the modification of polyolefins, of polar polymers, and of blends thereof.
Patent CA-2034120-A1 (CA)
Title: Process and device for electrostatic painting on plastic parts
Inventor: COELHO ROLAND
IPC: B05B5/08
Filed: 1991-01-14
Abstract: ABSTRACT OF THE DISCLOSURE     A process and apparatus for electrostatic painting of plastic parts.  The paint is applied electrostatically on one face of the part.  The face opposite the face to be painted is subject to ionization. This is done by an ionizer, which produces an ionized air jet from compressed air and a high voltage AC current.  In another embodiment, a grounded electrode tip produces a corona discharge near the opposite face.
Patent CA-2038673-A1 (CA)
Title: Arithmetic shift circuit
Inventor: NAKAMURA TOSHIHIKO
IPC: G06F7/00
Filed: 1991-03-20
Abstract: Abstract of the Disclosure An arithmetic shift circuit includes a register, a first selecting means, a logic shifter, and a second selecting means.  The register receives and stores an operand including a sign portion, and a shift amount.  The first selecting means selectively outputs the operand and an inverted value thereof in accordance with a value of the sign portion stored in the register.          The logic shifter performs a logic shift-right operation of an output from the first selecting means in accordance with the shift amount stored in the register.          The second selecting means selectively outputs an output from the shift means and an inverted value thereof in accordance with the value of the sign portion stored in the register.
Patent CA-2040894-A1 (CA)
Inventor: YAMADA KEIKI
IPC: H04N1/405
Filed: 1991-04-19
Abstract: A multi-gradation recording apparatus whose circuits are simplified by reducing the number of recording gradation level bits specified to each recording element without reducing the recording resolution and whose idle time in which no recording is performed to the thermal head is shortened to increase its recording speed.
Patent CA-2041464-A1 (CA)
Title: Cover for accommodating an air bag
Inventor: ZUSHI TAKAYASU
IPC: B60R21/2165
Filed: 1991-04-29
Abstract: ABSTRACT OF THE DISCLOSURE        A cover for accommodating an air bag, which is provided with a tear line for starting tear at a start of an operation of the air bag, is characterized in that the tear line is provided at its end with at least either a high strength portion or a stop hole for preventing propagation of the tear.
Patent CA-2042533-A1 (CA)
Title: Hydraulic valve
Inventor: FREY HEINZ
IPC: F16K17/04
Filed: 1991-05-14
Abstract: ABSTRACT OF THE DISCLOSURE                       Hydraulic valve This hydraulic valve has a housing (2) with a feed line (12) and a discharge line (14) for a fluid. A sealing point is provided between the feed line and discharge  line.  An accumulator  acts  in the closing direction on the sealing point via a piston.        The aim is to create a hydraulic valve which requires no additional energy source. This is achieved when the piston (8, 23) can be moved in the opening direction merely by a total of the pressures present in the feed line (12) and in the discharge line (14).                                          (Single figure)
Patent CA-2045096-A1 (CA)
Title: Production of high viscosity index lubricants
Inventor: DEGNAN THOMAS F
IPC: C10G67/04
Filed: 1991-06-20
Abstract: Petroleum waxes are converted to high viscosity index lubricants by a hydroisomerization process in which the wax feed is subjected to hydroisomerization over a low acidity zeolite isomerization catalyst which effects a preferential isomerization on the paraffin components in the feed to less waxy, high V.I. isoparaffins. The hydroisomerization is operated at high pressure, at least 1000 psig hydrogen partial pressure (reactor inlet) using a zeolite catalyst, preferably a noble metal containing zeolite beta catalyst which contains boron as a framework component of the zeolite to give a low alpha value, typically below 10. The hydroisomerization is carried out at a 650°F+ conversion in the range of 10 to 40 weight percent of the feed. A final dewaxing step to target pour point may be used with relatively low loss, typically no more than 15 weight percent, during this dewaxing. The final products typically have V.I. values in excess of 125 and usually in the range of 140 to 155 and are characterized by exceptional stability.
Patent CA-2045757-A1 (CA)
Title: Chemically gassed emulsion explosive
Inventor: NGUYEN ANH D
IPC: C06B47/14
Filed: 1991-06-26
Abstract: A process for the production of a chemically gassed emulsion explosive wherein a chemical gassing agent is added to the emulsion as an essentially dry particulate powder.      The process allows for the production of stable emulsion explosives which have more controllable emulsion explosive characteristics.
Patent CA-2052597-A1 (CA)
Title: Twisted-loop type dead end grip apparatus
Inventor: DICKERSON GARY R
IPC: F16G11/00
Filed: 1991-10-01
Abstract: Abstract of the Disclosure A twisted-loop type, dead-end grip apparatus is adapted to be connected between an axial end of an elongated element such as a guy strand and an attchment fitting so that a tensile load applied to the attachment fitting is transmitted to the elongated clement via the grip apparatus. The grip apparatus includes a plurality of wires secured to one another and formed into a pair of generally straight leg portions and a central loop portion interposed between the leg portions. The wires within each of the leg portions form an open helix while the wires within the loop portion form a closed helix. A core rod extends within the closed helix of the loop portion and includes an outer diameter substantially equal to the inner diameter of the closed helix. The core rod extends at least partially through the loop portion in order to inhibit wear of the wires within the loop portion during cyclic loading of the apparatus. A method of constructing a grip apparatus includes, among other steps, the step of cabling a central portion of an elongated element so that the wires of the central portion which are preformed into an open helix ate closed about a core rod so as to provide substantially full coverage of the core rod. Thereafter, the elongated element and the core rod are bent to define two leg portions each having an open helix and a loop portion defined by the central portion.
Patent CA-2052666-A1 (CA)
Title: Cooking apparatus
Inventor: MARREN CHARLES L
IPC: A47J37/07
Filed: 1991-10-02
Abstract: A portable barbecue-type cooking apparatus for use in combination with a gas operated cook stove includes a housing defining a cooking chamber, the housing being defined by a bottom wall, side walls, end walls and a cover for closing the cooking chamber. Chimneys extend upwardly from the bottom wall of the housing whereby water can be placed in the heating chamber around the chimneys. A fan is rotatably mounted on each of the chimneys, so that when the housing is placed over a source of heat, the heat rising through said chimneys causes the fans to rotate for deflecting grease and other food produced liquids away from the chimneys and into the water.
Patent CA-2058299-A1 (CA)
Title: Treated polymer fabrics
Inventor: LANGE RICHARD M
IPC: D06M101/16
Filed: 1991-02-28
Abstract: This invention relates to an article comprising: (A) a polymer fabric treated with (B) a wetting agent which comprises at least one compound of the formula (I), wherein R1 is a hydrocarbyl group having about 8 to about 150 carbon atoms; R2 is a hydrocarbylene group, or a hydroxysubstituted or hydroxyalkyl substituted hydrocarbylene; each R3 is independently hydrogen, an alkyl group, a hydroxyalkyl group, a hydrocarbylcarbonyl or polyoxyalkylene group; each R4 is independently a hydrocarbylene group; each n is independently 1 to 150; m is zero or one; m' is zero or one; M  is a hydrogen, an ammonium cation or a metal cation, and when m' is zero, X is -H, -Ar, -OH, -OR5, (.alpha.), -N(R3)2, (.beta.) or (.psi.); and when m' is one, X is -H, -R5, (.delta.), or (.epsilon.) wherein each R5, R6 and R8 is independently a hydrocarbyl group having up to 100 carbon atoms; R7 is hydrogen or an alkyl group having from 1 to about 8 carbon atoms and Ar is a phenyl group. The treated polymer fabrics of the present invention have improved wicking/wetting characteristics. Further, the treated polymer fabrics maintain these characteristics upon repeated exposure to fluids.
Patent CA-2058436-A1 (CA)
Inventor: SPINELLO RONALD P
IPC: B09B3/00
Filed: 1990-06-01
Abstract: Apparatus and method for sterilizing and encapsulating contaminated waste particularly medical implement waste (17) in which a volume of thermoplastic compound (19) having a melting point temperature-calibrated at a value which corre-sponds substantially to the temperature at which all biological contamination is rendered steril substantially on contact, and impregnating a space (12) containing contaminated waste items (17) with the liquid compound (19) and thereafter cooling the mass to its solidified phase while containing it against pro-trusion of any waste item (17). Two stage treatment of the waste is effected by utilizing a second calibrated thermoplastic (83) having a lower melting temperature in a common deformable waste container (74) with the first thermoplastic (76). The con-tainer (74) is locked in a first geometry by means of the first thermoplastic (76) so that preliminary heating liquefies the sec-ond thermoplastic (83) to at least partially encapsulate and sterilize successive charges of waste, while simultaneously creating additional space in the container (74) to receive the subsequent charges of waste. When the container (74) is heated to a final elevated temperature it is released from its initial geometry by the liquefaction of the first thermoplastic (76) to complete the final encapsulation and sterilization process.
Patent CA-2060650-A1 (CA)
Title: Single-layer or multiple-layer foil, partially composed of starch
Inventor: TOMKA IVAN
IPC: C08L53/00
Filed: 1991-03-27
Abstract: ABSTRACT     A single-layer or multiple-layer foil of substantially reduced gas-permeability comprises at least one layer which consists, at least in part, of substantially thermo-plastically processable starch.  In order that this single-layer or multiple-layer foil is at least approximately insensitive to moisture it is proposed that at least one layer comprises furthermore at least one hydrophobic polymer, such as a polyolefin, which is mixed with the starch upon the production of said at least one layer, and/or that the starch is at least partially cross-linked on the surface of said at least one layer and/or that said at least one layer is covered by at least one additional layer which is at least approximately insensitive to moisture.