baber/WOPTO huggingface dataset:
Patent CA-2050857-A1 (CA)
IPC: H01J37/32
Filed: 1991-09-06
Abstract: ABSTRACT OF THE DISCLOSURE          The apparatus serves for treating workpieces by means of a plasma torch in a gaseous, preferably in an inert gaseous atmosphere. For this purpose, there is provided a gas-tight container and, in the interior of the container, a plasma gun as well as a cooling member for cooling the treated workpiece by a gaseous cooling medium stream. The cooling medium is a gas circulating in a closed circuit. Thus, the the cooling gas can continuously used because heat is removed from the gas in a heat exchanger. A cooling operation can be realized in this way in temperature regions which are much higher than if liquified gas is used.
Patent CA-2052222-A1 (CA)
Inventor: HOLLIS PATRICK
IPC: F16L39/00
Filed: 1991-09-25
Abstract: A restraint coupling assembly is provided for a double containment pipe system having an inner carrier pipe formed from a first thermoplastic material and an outer containment pipe formed from a second thermoplastic material.   The restraint coupling assembly  includes  a  carrier  component  formed from the  first thermoplastic material and having a carrier cylinder conforming to the diameter of the carrier pipe, and having a carrier flange extending rigidly  outwardly  from the carrier  cylinder.    The restraint coupling assembly further includes a pair of containment components formed from the second thermoplastic material.   Each containment component includes a containment cylinder conforming to  the  diameter  of  the  containment  pipe.    Each  containment component further includes an inwardly extending containment flange having an aperture therein with the diameter of the aperture greater  than  the  outer  diameter  of  the  carrier  pipe.    The containment component may be assembled around the carrier component such that the containment flanges restrain the carrier flange.
Patent CA-2053501-A1 (CA)
Title: Low vulnerability element for explosive ordnance comprising a multicomposition explosive charge and process for obtaining a blast effet
Inventor: MAZER JEAN-PIERRE
IPC: F42B39/14
Filed: 1991-10-16
Abstract: A relatively insensitive component of explosive ammunition consisting of a casing containing a multicomposition explosive charge in which the innermost layer is a composite explosive consisting of a filled polyurethane or polyester polymeric matrix in which the filler contains more than 40 % by weight of organic nitro explosive and in which the peripheral layer is a pyrotechnic composition of the class of composite solid propellants, consisting of a filled polyurethane or polyester polymeric matrix in which the filler contains at least one inorganic oxidiser and less than 10 % by weight of organic nitro explosives. The blast and/or bubble effect produced is close to that produced by the much more sensitive charge of a single-composition composite explosive of equivalent mass. 
<??>The invention also relates to a process for obtaining a blast and/or bubble effect by release of gas in the casing of an abovementioned component of ammunition according to the invention followed by a rupture of the casing. The gas release is obtained by detonation of the innermost layer followed by a detonation-free reaction of the peripheral layer.
Patent CA-2055656-A1 (CA)
Inventor: MCLEOD RODERICK D
IPC: E21B33/068
Filed: 1991-11-15
Abstract: Wellhead Isolation Tool and Method of Use Thereof ABSTRACT OF THE DISCLOSURE Apparatus   for   isolating  the  wellhead equipment from the high pressure fluids pumped down to the producing formation during the well  servicing procedures of fracturing and acidizing oil and gas wells  utilizes a  central  mandrel  for pumping the fracturing and acidizing fluids through the wellhead equipment and into well tubing or casing. The mandrel is run into the wellhead equipment while enclosed in a pressure containment protection which includes the operating cylinder. The mandrel is locked in position in the wellhead equipment and later extracted from the wellhead  equipment  while  fully  enclosed  in  the pressure containment. The pressure containment mandrel protection and operating cylinder are removed during the well servicing process to give a low profile to the overall wellhead array.
Patent CA-2056487-A1 (CA)
Title: Additives for improving low modulus of room temperature vulcanizable compositions
Inventor: LUCAS GARY M
IPC: C08K5/57
Filed: 1991-11-28
Abstract: Docket No.: 60S1-1341 Abstract of the Invention Scavenger-free, shelf-stable, room temperature vulcanizable organopolysiloxane compositions having improved low modulus properties are provided, comprising a polyalkoxy-terminated organopolysiloxane, a diorganotin bis beta-diketonate condensation catalyst, and a low modulus-enhancing additive which is a low viscosity monoalkoxy-terminated polydiorganosiloxane. In preferred embodiments, the RTV composition further comprises filler, a beta-ketone, a polyalkoxy silane cross-linking agent, and anadhesion promoter which is preferably a dual adhesion promoting system comprising a cyano-functional polyalkoxy silane and an isocyanato-functional alkoxysilane.
Patent CA-2057801-A1 (CA)
Inventor: EBERT GARY F
IPC: F41C7/11
Filed: 1991-12-17
Abstract: GUN WITH PIVOTING BARREL, PROJECTILE LOADER, AND TRIGGER INTERLOCK                      Abstract of the Disclosure A gun includes a frame and a pivoting barrel assembly which is releasably latched in a firing position by a pair of flexible and resilient latches on the barrel assembly which engage shoulders on the frame. A trigger is slidably mounted on the frame for movement between a rest position and a firing position. A projectile loader is mounted on the frame at the breech end of the barrel assembly for movement between a loading position and a firing position. The loader is provided with an opening which is aligned with a magazine in the frame when the loader is in the loading position and is aligned with the bore of the barrel assembly when the loader is in the firing position. A camming ramp on the trigger is engageable with the loader for moving the loader between the loading and firing positions as the trigger moves between the rest and firing positions. A trigger interlock is movably mounted on the frame and engages the trigger when the barrel assembly is out of the firing position for preventing the trigger from moving to the firing position. The trigger interlock is moved out of engagement with the trigger by the barrel assembly when the barrel assembly moves to the firing position.
Patent CA-2059265-A1 (CA)
Title: Synthesis of sugars and amino acids from substituted and unsubstituted arene diols
Inventor: HUDLICKY TOMAS
IPC: C07H3/02
Filed: 1991-02-15
Abstract: In accordance with the methods of the present invention, 6-, 5-and 4- carbon sugars and sugar derivatives are synthesized from arene diols by various permutations of epoxidation, hydroxylation, reduction, carbon center inversion, olefination and cyclization reactions which add and remove carbon atoms from a given carbon moiety, create chiral carbon centers, provide functionalities, change the oxidation state of carbon centers, change the stereometric orientation around carbon centers and form cyclic moieties. The resulting sugars and sugar derivatives can be used as produced or to synthesize other sugars, sugar derivatives, amino acids and other useful compounds.
Patent CA-2059671-A1 (CA)
Title: Hybrid apparatus and method for blending materials
Inventor: MOLLER RICHARD W
IPC: B01F7/00
Filed: 1992-01-20
Abstract: HYBRID APPARATUS AND METHOD FOR BLENDING MATERIALS ABSTRACT OF THE DISCLOSURE A blender for plastic materials weighs a charge of virgin plastic pellets as they are added to a hopper, similarly weighs plastic regrind material as it is added to the hopper, calculates the weight of a color or other additive material on the basis of the actual virgin material weight and the desired color percentage, calculates from the weight of color material and a calibration of a volumetric feeder the volumetric amount of color material needed to establish a predeterminer ratio between the virgin and additive materials; dispenses the calculated volume of color material, and then mixes all the materials.  The apparatus is hybrid, using weight ratio measuring devices for the primary components and a volumetric feeder for dispensing the additive.
Patent CA-2061268-A1 (CA)
Inventor: CHAILLOT GEORGES
IPC: H01R13/64
Filed: 1992-02-14
Abstract: BLOC DE CONNEXION ELECTRIQUE ENFICHABLE ET CONNECTEUR INCORPORANT UN TEL BLOC Un bloc de connexion électrique enfichable, utilisable dans le domaine automobile, comprend un boîtier rectangulaire (14) dont deux côtés opposés présentent des saillies longitudinales délimitant des couloirs parallèles. Des galettes plates (16) en matériau isolant sont placées dans les couloirs. Dans chaque galette (16) est ménagée une seule rangée de passages parallèles de réception de bornes de contact (22). Une grande face de chaque galette est découpée dans sa partie avant, dans le sens de l'insertion, pour constituer des cliquets (26) de retenue individuelle des bornes par encliquetage dans des trous de des bornes. Le boîtier et chaque galette portent des moyens de détrompage coopérants. Les saillies (18) de guidage occupent toute la profondeur du boîtier de façon à guider chaque galette (16) des son introduction dans le boîtier. Le boîtier comporte sur un de ses grands côtés une marche de venue en butée de tout cliquet de la première galette gui serait soulevé par enfoncement incomplet d'une borne de la galette. Figure 1
Patent CA-2064777-A1 (CA)
Inventor: LOWNDS C MICK
IPC: C06B47/14
Filed: 1990-07-30
Abstract: The  present  invention  relates  to  an  emulsion composition with a polymerizing and/or crosslinking agent and methods for its use in improving the manufacturing, packaging,  transporting,  storage placement and blasting characteristics of explosives containing an emulsion.  The present invention is directed to controlling the rheology of an emulsion or explosive containing an emulsion by polymerizing and/or crosslinking the continuous phase of the emulsion by employing hydroxy-terminated polybutadiene and polymerizing agents and/or maleic anhydride adducted polybutadiene  and  crosslinking  agents.    The  present invention provides compositions and methods of polymerizing and crosslinking emulsion compositions which result in an emulsion  whose  rheology may be  controllably  selected, without  compromising  the  integrity  of  the  explosive reaction.   The composition of the present invention is comprised  of  a  water-in-oil  emulsion  containing  a continuous external carbonaceous fuel phase, the fuel phase being at least partially polymerized and/or crosslinked.
Patent CA-2068456-A1 (CA)
Title: Optical system for focusing a light beam on to an image plane
Inventor: KARPOL AVNER
IPC: G02B6/42
Filed: 1992-05-12
Abstract: An optical system for focusing a light beam on to an image plane particularly suited for compensating for manufacturing tolerances associated with laser diodes having variable divergence and astigmatism characteristics. The system comprises a collimation lens for collimating the light beam so as to produce a collimated beam in a first direction and an optical shaper having an axis perpendicular to the first direction for correcting distortions associated with the collimated beam and spatially displaced from the collimation lens so as to form the collimated beam on to the image plane. Preferably, the optical shaper includes a pair of cylindrical lenses separated from each other a predetermined distance so as to minimize astigmatism and divergence of the beam. In use, the optical system is adjusted by displacing the collimating lens from the light source so as to produce a collimated beam of light, adjusting the distance between the cylindrical lenses so as to derive a shaped beam having minimal astigmatism and divergence, and adjusting the distance between the collimating lens and the optical shaper so as to focus the shaped beam on to the image plane.
Patent CA-2068579-A1 (CA)
Title: Expansion dowel with friction reducing coating
Inventor: SCHIEFER ERWIN
IPC: F16B1/00
Filed: 1992-05-13
Abstract: An expansion dowel has a friction reducing coating on the contacting surfaces formed by an inside surface of an expansion sleeve and an outside surface of the shank contacting the inside surface of the sleeve. The coating effects a smaller friction value between the expansion sleeve and the expansion part than the friction value between the expansion sleeve and the surface of a borehole into which the dowel is inserted. This difference in friction assures an effective re-expansion of the expansion dowel in a fractured or broken tensile zone of a receiving material containing the borehole. In addition to the coating, protrusions arranged in pairs are formed on the outside surface of the expansion sleeve for maintaining contact with the borehole surface, particularly in the broken tensile zone during large displacement of the expansion dowel.
Patent CA-2069064-A1 (CA)
Title: Method of and arrangement for reenlargement of micro-filmed originals
Inventor: KLOCKE HELMUT
IPC: G03B27/32
Filed: 1992-05-20
Abstract: ABSTRACT Of THE DISCLOSURE                  A method of reenlargement of microfilm originals stored in form of microimages includes providing a plurality of microimages on a carrier, selecting microimages from the plurality of microimages for reenlarge-ment on a receiving medium, positioning a selected microimage in an image window suitable for the reenlargement, trans-ferring the microimage on the receiving medium by an objective focused on the image window, during the transfer of the microimage on the carrier positioning a second microimage located on another carrier in a second image window and after the transfer of the first  mentioned microimage, trans-ferring the second microimage on the receiving medium.     ac
Patent CA-2071180-A1 (CA)
Title: 1,4-benzodiazepines with 6-membered heterocyclic rings
Inventor: FREIDINGER ROGER M
IPC: A61P35/00
Filed: 1992-06-12
Abstract: TITLE OF THE INVENTION 1,4-BENZODIAZEPINES WITH 6-MEMBERED HETEROCYCLIC RINGS            ABSTRACT OF THE DISCLOSURE         Pharmaceutical compositions containing 6-membered heterocyclic rings are disclosed which are useful in the treatment of panic disorder or anxiety disorder.
Patent CA-2073112-A1 (CA)
Title: Process for separating off aliphatic straight-chain compounds having terminal functional groups
Inventor: DECKERS GREGOR
IPC: C07C51/487
Filed: 1992-07-03
Abstract: 6230 Frankfurt 80, 10.07.91 PAT-bin-hrr Hoe91/Y003 Hoechst Aktiengesellschaft, Frankfurt am Main 80 Abstract The present invention relates to a process for separating off aliphatic straight-chain compounds having terminal functional  groups  from  mixtures  containing  isomers branched in the .alpha.-position by precipitating the aliphat-ic,  straight-chain  compounds  as  the  urea  inclusion compound (clathrate).
Patent CA-2074066-A1 (CA)
Title: Reducing foaming in paper manufacture
Inventor: MALATESTA ALBERTO
IPC: D21H17/17
Filed: 1991-01-21
Abstract: The use as a foam suppressant in alkaline or neutral paper making employing calcium carbonate as filler of a water soluble salt of a polybasic acid improves paper machine utilisation and reduces the formation of white pitches in the paper particularly when the paper is sized with an alkyl or alkenyl succinic acid anhydride and other reactive sizing compounds.
Patent CA-2074559-A1 (CA)
Title: Plastic secondary heat exchanger apparatus for a high efficiency condensing furnace
Inventor: LU LIN-TAO
IPC: F24H3/10
Filed: 1992-07-23
Abstract: A high efficiency fuel-fired condensing furnace is provided with a compact recuperative heat exchanger structure comprising a metal primary heat exchanger positioned above and operatively connected to the inlet side of a secondary heat exchanger formed from a polyetherimide (PEI) plastic material.   The primary heat exchanger is formed from a horizontally spaced series of vertically serpentined metal combustor tubes, and the secondary heat exchanger if formed from horizontally spaced apart injection molded inlet and outlet collector boxes interconnected by a horizontally spaced series of elongated hollow extruded plate members sealingly secured at their opposite ends to the collector boxes with the side edge-to-side edge widths of the hollow plate members being vertically oriented.   The outlet ends of the metal tubes are operatively connected to the plastic inlet collector box.   Cross-sectionally along  their  lengths,  the  hollow  plastic  plate  members  have horizontally flattened portions interdigitated with horizontally enlarged,  convexly  curved  portions.    Various  heat  transfer-enhancing alternate embodiments of the hollow plate members are disclosed.  Additionally disclosed is an alternate embodiment of the plastic secondary heat exchanger in which the inlet collector box is positioned atop the outlet collector box, and the hollow plate members are internally baffled in a manner causing combustion gas exiting the inlet collector box to make two passes through the hollow plate members before entering the outlet collector box.
Patent CA-2078484-A1 (CA)
Title: One step synthesis of methyl t-butyl ether from t-butanol using haloacid-modified clay catalysts
Inventor: KNIFTON JOHN F
IPC: B01J38/60
Filed: 1992-09-17
Abstract: ONE STEP SYNTHESIS OF METHYL t-BUTYL ETHER FROM t-BUTANOL USING HALOACID-MODIFIED MONTMORILLONITE CLAYS                    (D#81,146-F) ABSTRACT OF THE DISCLOSURE           A method is disclosed wherein t-butanol is reacted with methanol in a reaction zone in one step to provide methyl tert-butyl ether and the improvement of accomplishing the reaction which comprises: a.   Using a catalyst comprising a montmorillonite clay treated with a haloacid; b.   continuously contacting said t-butanol and methanol in a molar amount of about 0.1 to 10 moles of methanol per mole of t-butanol with said catalyst at a temperature of about 20°C to about 250°C and a pressure of about atmospheric to about 1000 psig to obtain the methyl tert-butyl ether product.     81146.APP
Patent CA-2082405-A1 (CA)
Title: Method for extending the gas lifetime of excimer lasers
Inventor: JURSICH GREGORY M
IPC: H01S3/225
Filed: 1992-02-25
Abstract: A method for extending the gas lifetime of an excimer laser by removing CF4 impurity, which comprises: a) reacting CF4, an undesirable impurity which forms and is contained in the lasing gases, with an amount of an oxidizing gas additive effective to produce one or more compounds which are condensible with refrigeration means, without reducing laser output below a predetermined acceptable level; and b) condensing said one or more compounds produced in step a) with refrigeration means, substantially without condensing said one or more rare gases therewith, thereby removing said CF4 impurity from said excimer laser and extending the gas lifetime of the laser.
Patent CA-2082895-A1 (CA)
Title: Device for regulating the flue draught strength in heating appliances
Inventor: DRIESMANS JEAN
IPC: F23L13/00
Filed: 1992-11-13
Abstract: ABSTRACT OF THE DISCLOSURE Device for regulating the flue draught strength in heating appliances. An air guide element is installed between air supply vent and the inside of the door of the heating appliance which consists of an adjustable damper for regulating the supply of secondary combustion air and ballast air in the appliance and in which at least one heat sensitive element is connected between said damper and one of the components of the heating appliance which serves to adjust said damper, which element reacts to the prevailing temperature in the combustion chamber of the appliance. FIG. 3
Patent CA-2084019-A1 (CA)
Inventor: ALLISON BLAINE H
IPC: B60G9/00
Filed: 1992-11-27
Abstract: ABSTRACT OF THE DISCLOSURE      A lightweight,  stable,  maneuverable tractor trailer having a frame with a front end, a rear end and two side rails.  The rear end of the frame is about twice the width of the front end and the side rails each lie in a vertical plane that is disposed at  an  acute angle  relative  to  the  central longitudinal axis of the frame.  Single tire mount wheel and axle subassemblies are mounted to the frame.  These subassemblies reduce the tare weight of the tractor trailer and additionally permit the wider frame to be utilized.
Patent CA-2086180-A1 (CA)
Title: External damper clutch
Inventor: SZADKOWSKI ANDRZEJ
IPC: F16D13/46
Filed: 1992-12-23
Abstract: Abstract of the Disclosure A flywheel clutch assembly disposed between an engine and transmission includes an external damper positioned be-tween a flywheel and a clutch housing.  The external damper allows relative motion between the flywheel and the clutch housing, while elastically resisting relative motion in both the driving and coast modes.  The clutch housing is relatively heavy and functions as an additional flywheel as it is being rotated by the main flywheel of the assembly. The clutch mechanism disposed within the housing includes a rigid driven disk which assures minimum inertia in the drive line.  In one specific aspect of the invention, the damper is comprised of a plurality of arcuate, nested beam springs pivoted at one end to the flywheel and at the other end to the heavy cover enclosing the clutch assembly.  The resulting flywheel clutch assembly with the external damper disposed between the flywheel and clutch provides improved shiftability while minimizing rattle in both the idle and drive modes of the drive line.
Patent CA-2088316-A1 (CA)
Title: Framework modules for building walls
Inventor: GALBATS PATRICK A E
IPC: E04B2/86
Filed: 1993-01-28
Abstract: ABSTRACT OF THE DISCLOSURE    Module  sections  are used for making building walls  to  be filled   with  concrete.    The  module  section  comprises   two rectangular  spaced  flat panels,  each having an  inner  surface facing each other.  The panels adapted to receive poured concrete therebetween while vertically positioned.  A plurality of spacers are  located between the panels.   The spacers are made  of  heat insulating material and are secured to both panels for  retaining them  together in parallel relationship.   The spacers are  flat plates  vertically  oriented and staggeredly  disposed  over  the inner surfaces of the panels.   The spacers have a sloping  lower edge  for allowing poured concrete to flow in contact with  their lower edge.   A pluraltiy of spacers are horizontally aligned and are  provided  with at least one hole for  receiving  reinforcing steel rods.   The module sections are adapted to receive concrete between  the panels to adheringly and permanently  contact  their inner  surfaces,  the  spacers  and the  rods  to  produce  rigid concrete walls.
Patent CA-2088683-A1 (CA)
Inventor: GELFAND DAVID H
IPC: C12Q1/68
Filed: 1991-08-06
Abstract: A process for discriminating sequence variants of a target nucleic acid is described. In this process variant specific cleavage products of a labeled oligonucleotide probe are produced by the 5'-3' exonuclease activity of a template dependent nucleic acid polymerase, which allows to identify the sequence variants present in a sample.
Patent CA-2089357-A1 (CA)
Title: Method and apparatus for improving vertical sharpness of picture tubes
Inventor: HACKETT ANDREW D
IPC: H04N3/30
Filed: 1991-09-06
Abstract: Large format TV tubes must produce a high peak brightness in order to be acceptable to the user. This results in a large beam current in bright areas of the picture and in a subsequent defocussing of the resulting spot on the display and in a loss of the sharpness of vertical and horizontal transitions. The apparent sharpness of a vertical transition is gained by modifying the deflection of the TV receiver such that, at vertical transitions, the line on the bright side of the transition is deflected away from the transition region. Advantageously the amount of vertical scan modulation corresponds to a multi-level control signal and de-pends on the grey levels of the transition.