baber/WOPTO huggingface dataset:
Patent CA-2022915-A1 (CA)
Title: Gelling catalysts for aliphatic isocyanates-capped prepolymers
Inventor: BULL DARWIN S
IPC: C08G18/10
Filed: 1990-08-08
Abstract: ABSTRACT A catalyst and process for gelling prepolymers comprising Lewis acid salts and their use decreases the gelling time for prepolymers prepared from aliphatic isocyanates and oxyethylene oxide containing diols or polyols.  The catalyst decreases the gelling time to minutes depending on the concentration and the resulting pH of the aqueous mixture in which the prepolymer is gelled.
Patent CA-2023187-A1 (CA)
Inventor: MAZUREK STANLEY L
IPC: B65D8/04
Filed: 1990-08-13
Abstract: This  relates  to  a conventional  type  metal container end having a modified end hook configuration for  the  purpose  of  eliminating  undesired  wrinkles within a conventional type of double seam between a metal  container  end  and  a  container  body.  Most particularly, a customary straight section between an end curl and a cut edge of the metal container end is eliminated so that the end curl terminates at the cut edge.  Additionally,  the  end  curl  is  reinforced  so as to stiffen the end curl by providing a reinforcement generally in the area of the normal juncture between a seaming  panel  and  the  end  curl.  In  a  preferred embodiment  the  reinforcement  is  arched  primarily upwardly.
Patent CA-2026847-A1 (CA)
Inventor: FATH DANIEL
IPC: A23B7/152
Filed: 1990-10-03
Abstract: Le procédé de traitement et de conservation comprend une étape initiale où les produits sont placés, à température réfrigérée, sous une pression comprise entre 0,5 et 3 x 105 Pa, dans une atmosphère gazeuse contenant initialement de 10 à 100 % de protoxyde d'azote ou d'argon, ou d'un mélange des deux, entre 0 et 50 % d'oxygène, le complément éventuel étant constitué par un gaz inerte, pendant une durée supérieure à une heure. On peut prévoir une seconde étape où les produits sont maintenus pendant au moins 12 heures, sensiblement à la même température, dans une atmosphère contenant de 2 à 20 % d'oxygène. Ce procédé permet une parfaite conservation pendant une durée accrue des qualités organoleptiques, de texture et d'apparence de ces produits.
Patent CA-2027343-A1 (CA)
IPC: B43L23/08
Filed: 1990-10-11
Abstract: The invention provides a single, universal crayon sharpener capable of accommodating many different sizes of crayons or other similar marking instruments. The invention includes asymmetrical sharpening slots and cutting flanges which cooperate with an internal guide wall to ensure the proper placement and sharpening of a large range of crayon sizes.  The use of asymmetrical sharpening slots and cutting flanges, and an internal guide wall, in addition, permits the efficient reinforcement of the sharpener to resist the forces and stresses generated during the sharpening process.
Patent CA-2027718-A1 (CA)
Title: Food product and method for making the same
Inventor: PLOCHMAN FREDERIC W
IPC: A23L1/18
Filed: 1990-10-16
Abstract: ABSTRACT OF THE INVENTION         A method for producing a food product comprising the steps of providing a base layer of cheese; covering the base with a layer of previously popped popcorn; adding a second layer of cheese on top of and in the interstices of the popcorn layer; heating to melt the cheese and to bond the second layer of cheese and popcorn to the base, thereby forming a structure having a plurality of layers; freezing the structure to form a frozen structure; and freeze-drying the frozen structure; and the resulting food product.
Patent CA-2027955-A1 (CA)
IPC: G06F1/18
Filed: 1990-10-18
Abstract: APPARATUS FOR REDUCING ELECTROMAGNETIC RADIATION              FROM A COMPUTER DEVICE            ABSTRACT OF THE DISCLOSURE      A shielding strip is provided for a computer including an electrically  conductive  housing  and  a non-conductive  drive mounting  structure  situated within the housing.   The  drive mounting  structure  includes  a  plurality  of  bays  which communicate with an opening in the housing.  An electrically conductive retainer is situated over the opening to hold the disk drives  in  the  bays.   The  shielding  strip  includes  a longitudinal main portion extending along a first side of the housing adjacent the opening and situated between the first side of the housing and the drive mounting structure.   The shielding  strip  further  includes  a  plurality  of  spring structures extending laterally away from the main portion and toward the bays, each of such spring structures including a first spring portion for contacting the retainer and a second spring portion for contacting a conductive portion of a disk drive mounted in a respective bay.
Patent CA-2028723-A1 (CA)
Inventor: BAKER SAMUEL F
IPC: E21B23/06
Filed: 1990-10-29
Abstract: A hydraulic running and release tool includes a mandrel,  outer sleeve,  latch nut and piston which may be hydraulically or mechanically actuated to release the tool from a tubular member after it has been positioned in a well bore.   The latch nut and piston are releasably connected together by a shear member between the outer sleeve and the mandrel and the latch nut is releasably connected to a tubular member, with the piston positioned adjacent the releasable connection between the latch nut and tubular member to prevent premature disconnection of the latch nut from the tubular member.  To release the hydraulic tool, fluid pressure through a port in the mandrel from the well string acts on the piston to shear the member that connects the piston to the latch nut so that the piston shfits away from the releasable connection.          After the piston is shifted hydraulically, it reconnects to the  latch  nut  whereupon  the  piston  and  latch  nut  may hydraulically thereafter be shifted longitudinally together to disconnect the latch nut from the tubular member for retrieval of the tool including the mandrel, outer sleeve, latch nut and piston from the well bore.  If a malfunction occurs with the hydraulic release, rotation may be imparted to the mandrel which is in turn imparted to the latch nut by engaged splines on the mandrel and latch nut for rotating the latch nut to disconnect it from the tubular member for retrieval of the tool including the outer sleeve, mandrel, latch nut and piston from the well bore.
Patent CA-2029213-A1 (CA)
Title: Traffic barriers with built in carriers
Inventor: BURGETT WILLIAM B
IPC: E01F9/594
Filed: 1990-11-02
Abstract: ABSTRACT OF THE DISCLOSURE      A traffic barrier section with a centrally-located, built-in carrier is disclosed.  The carrier includes a fluid-operated ram which is connected to an axle carrying wheels located below the ram.  When the wheels are in a retracted position, the barrier section rests on the ground and when the wheels are extended, the barrier section is supported fully on the wheels.  In that position, a plurality of the barrier sections which are pivotally connected in end-to-end relationship can be moved from one construction site to another as needs change.  Each axle and the wheels can be turned to a position other than perpendicular to the longitudinal extent of the barrier section so that some of the barrier sections can be moved transversely to place them in other than a straight line position.
Patent CA-2032525-A1 (CA)
Title: Sliding mode control method
Inventor: TORII NOBUTOSHI
IPC: G05B19/19
Filed: 1990-05-11
Abstract: A B S T R A C T A sliding mode control method capable of reducing a steady-state deviation from a control target and making a control system adapted for system parameter variations, thereby improving control stability.  By a processor of a digital servo circuit of a servo control system, a position deviation (.epsilon.), speed deviation (?), value of a switching plane (s), and value of an integral element ( ?(? + C?.epsilon.)) of the switching plane are calculated based on a command position (.theta.r) and an actual position (.theta.) (100 to 102, 107, 113), and first and second terms of a switching amount (T1) are calculated in accordance with calculation formulae selected depending on whether the corresponding values of the switching plane, position deviation, and integral element are positive or negative (103 to 115). Based on the calculated value of the switching amount (T1) which is equivalent to the sum of the first and second terms and fulfills the Liapunov stability condition, a torque command (T) permitting the control system characteristic to be converged on the switching plane (s = 0) is calculated, whereby the control system stability is not ruined even if the system parameters are varied.
Patent CA-2032975-A1 (CA)
IPC: B65D75/58
Filed: 1990-12-21
Abstract: A package  is  disclosed which includes  an enclosed article,  and a thermally shrinkable,  synthetic resin film enclosing  the  article  and  having  opposite,  first  and second  edge  portions,   the  first  edge  portion  being superimposed on and sealed to the second edge portion to form   a   sealed,   overlap   portion,   the   film  having perforations  arranged  in a row in at  least  one of  the first  and  second  edge  portions  and  a  coating  of  a seal-preventive  agent  provided  in  part  of  the  overlap portion for weakening the seal in the overlap portion.
Patent CA-2034310-A1 (CA)
Inventor: ERRARD JEAN-CLAUDE
IPC: C10B7/06
Filed: 1991-01-16
Abstract: PROCEDE ET DISPOSITIF DE FABRICATION DE COKE EN CONTINU Abrégé Descriptif La présente invention concerne un procédé et un dispositif de fabrication de coke à partir d'un mélange (2) à base de charbon en grains, caractérisés en ce qu'on réalise la fusion et la carbonisation des grains de charbon en formant, à l'intérieur d'un espace compris entre deux surfaces chauffées en défilement se faisant face à faible distance, un pain continu (9) de matière carbonée en cours de cokéfaction que l'on extrait dudit espace, et en ce qu'on chauffe ledit pain en défilement en aval dudit espace pour provoquer sa cokéfaction complète. Préférentiellement le pain (9) est ensuite refroidi. Les parois chauffées en défilement peuvent être constituées par les surfaces externes (5,5') de deux cylindres (6,6') en rotation en sens inverses autour de leurs axes respectifs. Le dispositif comporte également des moyens de support et d'entraînement du pain (9).
Patent CA-2034367-A1 (CA)
Title: Method of recovering coating colour waste
Inventor: VARPULA JUHA
IPC: B01D61/14
Filed: 1991-01-17
Abstract: Abstract The  invention  relates  to  a  method  of utilizing  coating  colour  waste  e.g.  from paper machines. In the invention, water is removed from the waste water dispersion con-taining coating colour,  the coating colour dispersion being recovered and recycled to the paper coating process.
Patent CA-2036898-A1 (CA)
Title: Stable memory circuits
Inventor: COGHLAN BRIAN A
IPC: G06F12/16
Filed: 1991-02-22
Abstract: A B S T R A C T            A stable memory circuit (1) is disclosed.   The circuit (1) includes a pair of memory banks (2(a)) and (2(b)) each having eight arrays of eight VRAMs (3).  Each VRAM (3) is dual-ported and includes a processor port connected to a processor bus (6) and a stable memory-port connected to a stable memory bus (7).          Accordingly,  stable  memory  operations  such  as  copying operations may be carried out on the stable memory bus (7) concurrently with conventional  random accesses by a host processor via the processor port (6) and with very little use of processor time.  Further, the stable memory ports of VRAMs (3) are serial ports and each memory bank (2(a)) and (2(b)) may transfer data at high speed using wide serial data path.           \LM\S?E\10421039
Patent CA-2041186-A1 (CA)
Title: Foam generating apparatus
Inventor: MANLOWE DAVID
IPC: B09B1/00
Filed: 1991-04-25
Abstract: A foam generating apparatus is disclosed which generates foam from a foamable liquid by pumping the liquid by means of a high pressure pump from a storage tank to a combining device in which the liquid is combined with compressed air. The apparatus is capable of both operation and storage under extremely cold ambient conditions without the components of the apparatus becoming frozen. When the apparatus is not generating the product foam, a foamable liquid is recirculated throughout the apparatus to prevent the components of the apparatus from becoming frozen. The recirculation system is especially useful in preventing the high pressure pump from becoming frozen during storage in cold environments, while also reducing the amount of wear on the pump.
Patent CA-2047776-A1 (CA)
Title: Heat resistant, flame resistant conducting sheet having an electrical insulation layer and process for manufacture thereof
Inventor: KATO IPPEI
IPC: B32B5/26
Filed: 1991-07-24
Abstract: A laminate suitable for electrostatic discharge interference and/or electromagnetic interference shielding comprising a polymetaphenylene isophthalamide fiber layer on one or both sides of a conducting layer comprising conducting fibers and polymetaphenylene isophthalamide fibers.
Patent CA-2048310-A1 (CA)
Title: Connector locking device
Inventor: MOREAU JEAN-LUC
IPC: H01R13/627
Filed: 1991-08-01
Abstract: The invention relates to a connector locking device comprising a barrel (20), generally having the shape of a hollow cylinder, carried by a first portion (10) of the connector, a pin (31) carried by a second portion (12) of the connector and a locking means which can move between a first and a second position for which the said barrel (20) and the said pin (31) are solidly attached one to the other or are free, in which:   - the locking means is positioned in openings (35) of the pin (31) and is movable between a first position in which it is partly outside the said openings (35) and a second position in which it is totally inside the said openings (35), - the pin (31) comprises, on the outside, an actuating rod (32) and, on the outside, a slide mechanism (33) which can both be displaced axially, - the barrel (20) comprises a housing in which the portion of the locking means extending outside the openings (35) is positioned.   <IMAGE>
Patent CA-2049292-A1 (CA)
Title: Moteur dissymetrique a piston libre
Inventor: BRAUN ANTON
IPC: F01B9/04
Filed: 1990-01-23
Abstract: Un moteur compact à pistons libres de type asymétrique comprend une structure dans laquelle est soutenu de manière amovible un cylindre (11) qui contient une paire de pistons (12 et 13) et une chambre de combustion intermédiaire (14). Chaque piston comprend une tige (15 et 18) qui s'étend à travers l'extrémité adjacente du cylindre. Des moyens de renversement de la direction du mouvement (20, 22, 23, 22a, 23a, 24, 25, 27, 28, 17) agencés à une extrémité du cylindre s'étendent entre les tiges. De préférence, la structure est résistante mais légère. Elle peut comprendre un logement (10) en ossature avec des colonnes (110) en forme de boulon espacées autour du cylindre. Une partie des organes de renversement (27, 28) sont situés le long du côté du cylindre, alors que la plus grande partie de ceux-ci (20, 22, 23, 22a, 23a, 24, 25) sont situés au-delà d'une extrémité du cylindre. Un ou des dispositifs d'absorption de l'énergie peuvent être connectés à une tige (18a) seulement ou aux deux tiges (18a, 118a), les deux tiges étant entraînées simultanément en sens opposés par les deux pistons.
Patent CA-2052327-A1 (CA)
Title: Covers
Inventor: EFFA GERALD I
IPC: A47G11/00
Filed: 1991-09-26
Abstract: COVERS                     ABSTRACT OF THE DISCLOSURE           Covers for concealing tray jacks and thereby enhancing the ambiance of the settings in which those jacks are employed.  These covers have a skirt which surrounds the jack and conceals its legs and a multipart upper component which conceals the top of the jack and rests on the latter, vertically positioning the cover with respect to the floor on which the jack is placed.  Provision is made for detachably connecting the cover to the associated jack to facilitate the use and handling of the latter.  A novel construction of the cover causes the ends of the latter to automatically fold inward and together as the jack is folded to a collapsed configuration.  This facilitates the collapsing and handling of the covered tray.  The covers may be fabricated from a wide variety of materials, in any desired color, and may bear logos and otherdesigns.
Patent CA-2052421-A1 (CA)
Title: Customer activity monitor
Inventor: COHEN-MILLER LILY
IPC: G06M11/00
Filed: 1991-09-26
Abstract: ABSTRACT OF THE DISCLOSURE          A customer, automobile or other moving entity is monitored by sensing the presence of the entity to generate a signal.   The signals are correlated with individual increments of time during an extended time period of days or months.  Each signal may represent the count of a single individual or car, or the amount of time the individual or car is in the range of the sensor.  The data is collected in a digital memory for the prolong periods of time and can be dumped to a personal  computer  in  the  form  of  a  spreadsheet compatible file for future analysis.  A unitary battery powered version of the invention includes a power saving circuit while another version of the invention, powered by a wall outlet, can be connected to multiple sensors for collecting data in a large environment such as a store.
Patent CA-2054357-A1 (CA)
Title: Catalyzed redistribution of polyorganosiloxanes
Inventor: BOURGOIN JODI A
IPC: C07F7/08
Filed: 1991-10-28
Abstract: The instant invention is a catalyzed process for the redistribution of linear, chloride or hydroxy end-terminated polyorganosiloxanes or cyclic polyorgano-siloxanes.       Effective catalysts for the described process are alumina, silica-alumina, activated carbon, zeolite and acid clay. The catalyzed redistribution process can be incorporated as an element of a three-stage process. The three-stage process allows control of the yield of cyclic polyorganosiloxanes.
Patent CA-2054452-A1 (CA)
Title: Sponge-forming organosiloxane composition
Inventor: HIGUCHI KAZUO
IPC: C08L83/04
Filed: 1991-10-29
Abstract: The disadvantages associated with using a platinum-catalyzed hydrosilylation reaction to prepare sponge products from curable organosiloxane compositions can be overcome by microencapsulating the platinum-containing catalyst in a thermoplastic organic or organosilicone polymer.
Patent CA-2056194-A1 (CA)
Title: Process and device for cleaning waste materials containing harmful substances
Inventor: SCHOTT HANS-KLAUS DR-ING
IPC: F27B15/12
Filed: 1991-11-26
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention concerns a process and a device for removing harmful substances from waste materials (such as industrial dust and sludge, roll scale, used foundry sand etc.) in which a heated bulk material bed is formed into a fluidized bed by the introduction of a gas at least in the upper portion of the bulk material, whereby the fluidized bed, which consists (at least in part) of materials to be cleaned, is heated  from above,  whereby the heating intensity  is controllable  or  adjustable,  so  that  the  solid  material temperature,  on  the  one  hand,  and  the  gas  temperature prevailing in the gas chamber located above the fluidized bed, on the other hand,  are adjustable,  and that the thermal requirements  for  the  cleaning  process  and  the  flow-technological requirements for the material systems can be adjusted independent of one another.
Patent CA-2059168-A1 (CA)
Inventor: PRAHS HARALD
IPC: B65D35/02
Filed: 1992-01-10
Abstract: ABSTRACT     A plastic tube produced by blow molding has a main section with an essentially constant cross-section over its length, which is formed by an even number of level wall sections.  The wall sections are located opposite to each other and preferably have the same width.  At the front end of the main section there is a tubular opening section with a smaller diameter than that of the main section.  The rear and the main section converges to an essentially straight end edge which lies in a plane extending through the central longitudinal axis of the main section and which joins two longitudinal edges of the main section to form the end edge.
Patent CA-2059466-A1 (CA)
Title: Railway car brake system
Inventor: WILLIS WILLIAM L
IPC: B61H15/00
Filed: 1992-01-16
Abstract: Abstract of the Disclosure An improved brake linkage system for a railway car, especially a hopper car, having an air cylinder actuated to move a cylinder lever.  The cylinder lever is directly connected to a floating operating lever by a slack adjuster which can be made substantially shorter, lighter and less expensive than slack adjusters  of prior art systems.  With respect to the prior art, the present invention permits use of less linkages, shorter linkages and lighter linkages, thus making the overall linkage system lighter, less expensive and more efficient.
Patent CA-2061210-A1 (CA)
Title: Optical transmitting and receiving system incorporating optical circulator
Inventor: VAN DEVENTER MATTIJS O
IPC: H04B10/24
Filed: 1992-02-14
Abstract: An optical transmitting and receiving system for connection to an optical bidirectional transmission path, comprising a transmitter and at least one receiver. The transmitter and receiver are connected to the system connection via a  fork circuit.  The  fork circuit  is provided  with  a  first  polarisation  splitter,   a nonreciprocal   polarisation   rotator   and   a   second polarisation splitter,  the first output of the first polarisation  splitter  and  the  input  of  the  second polarisation splitter forming the input connection and the bidirectional connection, respectively, of the fork circuit and the input and output of the nonreciprocal polarisation rotator being respectively connected to the input of the first polarisation splitter and the first output of the second polarisation splitter. The receivers are connected to the second outputs of the polarisation splitters.
Patent CA-2064396-A1 (CA)
Inventor: FISHER JOSEPH A
IPC: A61M16/00
Filed: 1992-03-30
Abstract: An endotracheal tube introducer comprising a proximal end and a distal end, the proximal end comprising a mouth of greater diameter than an endotracheal tube being inserted into it and an elongated portion connected to, and extending longitudinally away from, the mouth for insertion thereof past the epiglottis, between the vocal cords, into the trachea, the elongated portion comprising at least one guide and reinforcing portion extending longitudinally along the length of the elongated portion away from the proximal end and mouth, and relatively thin pliable side portions or wings extending laterally from the sides of the guide portion, one from each side and overlap one another at least proximate the distal end.
Patent CA-2064888-A1 (CA)
Inventor: THOENY FRANZ
IPC: B62K21/16
Filed: 1991-06-15
Abstract: Abstract of the Disclosure A steering rod (9), in particular for a wheeled vehicle (1), can be connected to the steering column (3) by a centrally located connecting arrangement (7). The connecting arrangement (7) has an articulated arm (11; 111) which can be bent about at least one hinge pin (14) and which can be fixed in various locking positions by a fixing means (18; 12; 118; 218; 38). The locking positions are defined on two opposing locking surfaces (16, 17; 36; 37) which are inelastic in the articulated arm parts, by pins (20; 35) engaged in depressions (19). The clamping distance of the fixing means (18; 12; 38; 118; 218) is smaller than the length of the pins (20; 35). Additional means for fully releasing the pins (20; 35) from the depressions (19) are provided.