baber/WOPTO huggingface dataset:
Patent CA-2012750-A1 (CA)
Inventor: BRAIN ARCHIBALD I J
IPC: A61M16/04
Filed: 1990-03-21
Abstract: An artificial airway device, for use in place of an endotracheal tube to facilitate lung ventilation in an unconscious patient, is in the form of a laryngeal mask comprising an airway tube (10) opening into the interior space or lumen of a mask portion (12) whose periphery (14), which may be inflatable, is adapted to seal around the inlet (36) to the larynx (38), thus securing the patient's airway and permitting spontaneous or controlled ventilation. Drainage from the anterior region of the mask or directly from the oesophagus is provided by suitably arranged drainage tubes arranged for insertion with the mask. A soft, flexible upstanding collar (27) is carried by the periphery (14) of the mask, so as to surround the lumen of the mask and improve the sealing contact with the tissues around the circumference of the laryngeal inlet (36).
Patent CA-2013499-A1 (CA)
Title: Connector with means for securing to a substrate
Inventor: VAN WOENSEL JOHANNES M B
IPC: H01R12/72
Filed: 1990-03-30
Abstract: Abstract CONNECTOR WITH MEANS FOR SECURING TO A SUBSTRATE    A connector having means for securing the connector to a substrate the securing means comprise at least one metal member which  is accommodated in at least one of the walls of the housing of the connector. The metal member has a part projecting at right angles to a plane of the connector wall facing the substrate. The projecting part engages in a corresponding aperture of the substrate where the connector is secured to the substrate by, for example, soldering.
Patent CA-2015014-A1 (CA)
Title: Diffusion bonding of titanium alloys with hydrogen-assisted phase transformation
Inventor: RUCKLE DUANE L
IPC: B23K20/233
Filed: 1990-04-20
Abstract: DIFFUSION BONDING OF TITANIUM ALLOYS WITH HYDROGEN-ASSISTED PHASE TRANSFORMATION                      ABSTRACT OF THE DISCLOSURE    A piece of a titanium-based alloy having an elevated temperature phase transformation is diffusion bonded to a second piece at an accelerated rate or reduced temperature, as compared with conventional diffusion bonding, by manipulating the phase transformation with an alloying element that can be readily introduced into, and removed from, the titanium piece.  The introduction of hydrogen into the titanium alloy reduces the temperature of the phase transformation.  The titanium alloy can be repeat-edly cycled through the phase transformation before or during bonding, by the introduction and removal of hydrogen, to reduce the flow stress through transformation plasticity. Alternatively, the titanium alloy may be loaded with hydro-gen to reduce the phase transformation temperature, increas-ing the fraction of the more deformable phase and thence reducing the flow stress of the alloy at the diffusion bonding temperature.
Patent CA-2015465-A1 (CA)
Title: Modified membrane
Inventor: BURGGRAAF ANTHONIE J
IPC: B01D71/02
Filed: 1990-04-26
Abstract: A B S T R A C T                    MODIFIED MEMBRANE    In situ modification of ceramic membrane ultra-filtration toplayers by using the support as a reservoir for impregnation liquid to reduce pore size and/or prepare catalytically active membranes.
Patent CA-2018980-A1 (CA)
Title: Use of 5-phenyl-2-furan ketones as antiepileptic agents
Inventor: PELOSI STANFORD S JR
IPC: A61K31/445
Filed: 1990-06-14
Abstract: AS ANTIEPILEPTIC AGENTS                 ABSTRACT OF THE DISCLOSURE      A method  of preventing  epileptic seizures  in a human  or lower animal  subject  susceptible to  said  seizures,  comprising systemically administering to said subject a safe and effective amount of a compound of the formu1a:       wherein (a)  X is halo or nil, and Y is a substituent selected from the group  consisting  of  unsubstituted  or  halogen-substituted methyl, halo, nitro, amino, and methoxy; and (b)  R is R1C(O)OH, R1C(O)N(R2)2, or R1N(R2)2; where R1 is C1-C3 alkyl which is unsubstituted or substituted with C1-C2 alkyl; and each R2 is, independently, hydrogen or lower alkyl; or both R2 groups are connected to form a saturated 5- or 6-membered heterocycle containing 1 or 2 heteroatoms selected from oxygen and nitrogen and said heterocycle is unsubstituted or substituted with  lower alkyl  or hydroxy-substituted lower alkyl; or a pharmaceutically-acceptable salt thereof.  Preferably X is halo.
Patent CA-2023324-A1 (CA)
Title: Process for preparing hydrophobically modified guar ethers
Inventor: ZODY GEORGE M
IPC: C08B37/00
Filed: 1990-08-15
Abstract: Abstract of Disclosure Hydrophilic-hydrophobic derivatives of  guar are  made by  a two step reaction wherein in the first step, hydrophilic reagents are reacted with guar  splits under aqueous alkaline  conditions, and without isolating the product, hydrophobic reagents dissolved in an  organic  solvent  are  reacted  with  the  guar  still  in particulate form.
Patent CA-2023592-A1 (CA)
Title: Nail brush
Inventor: ORLOWSKI KAREN S
IPC: A46B9/00
Filed: 1990-08-20
Abstract: ABSTRACT OF THE INVENTION           A fingernail or toenail brush for the application of a  composition  for  treatment  of  human  nails  or  cuticles comprising:  a brush handle, a plurality of bristles connected at one end thereof to said handle, and wherein said other end of said bristles are disposed so as to present progressively longer bristles from one side of said handle to said other side, and wherein each said other end of said bristles present a rounded end so as to facilitate application of said composition to said nails and minimize damaging said cuticles during application of said composition to said human nails and cuticles.
Patent CA-2024129-A1 (CA)
Inventor: TIMMONS TERRY K
IPC: A61B19/00
Filed: 1990-08-28
Abstract: There is disclosed a nonwoven fabric laminate formed from an olefin copolymer, olefin terpolymer, or a blend of olefin polymers. Particularly, the improved fabric laminate is formed from a polymer having a crystallinity of less than 45% and preferably between 31-35% and most preferably about 32%. The fabric laminates formed from layers that are spun-bonded or melt-blown have improved characteristics including higher tear strength, greater tensile energy, greater abrasion resistance, better fabric drape and softness, and less particulate emission. There is also disclosed a low particle emission, sterilizable garment for use in clean rooms, paint rooms, and operating rooms.
Patent CA-2026222-A1 (CA)
IPC: D21F1/02
Filed: 1990-09-26
Abstract: A trailing element device is disclosed for use in a headbox of a papermaking machine.  The device includes a plurality of laminated sheets, the sheets being disposed within the headbox for dampening turbulence within the headbox.  A binder cooperates with the plurality of sheets for binding the sheets together such that the trailing element device defines an upstream bead which extends in a cross-machine direction within the headbox.  The bead is anchored within a slot defined by the headbox such that the bead is permitted to pivot within the slot so that a downstream end of the trailing element device is permitted to freely float within the headbox for attenuating the turbulence within the headbox.  A wear resistant cladding is applied to the upstream bead for inhibiting wear and fracturing of the sheets caused by frictional engagement between the trailing element device and the slot.
Patent CA-2026795-A1 (CA)
Title: Doppler flow sensing device and method for its use
Inventor: NUDELL BRUCE M
IPC: G01P5/24
Filed: 1990-10-03
Abstract: DOPPLER FLOW SENSING DEVICE AND METHOD FOR ITS USE                  Abstract of the Disclosure A device for sensing blood flow in a human aorta and a method for its use. The device includes two arrays, each array including one or more ultrasonic transducers for transmitting and/or receiving ultrasonic pulses. By appropriate weighting and phasing of the two ultrasonic arrays, a wide beam for insonifying the entire aorta, and a narrow beam for insonifying only a portion of the interior of the aorta, are produced. In addition, signals from the arrays can be processed to produce a signal indicating the direction to move the device so that the wide beam insonifies the entire aorta and the narrow beam insonifies only an interior portion of the aorta The direction-finding array can be made from sensors arranged in a north-south-east-west pattern or as four sectors of an annulus.
Patent CA-2027226-A1 (CA)
Inventor: KASAI HIROYUKI
IPC: G06F12/08
Filed: 1990-10-10
Abstract: An information processing system includes a main memory, a request source, a data buffer, a memory request control unit, and a cache invalidation control unit.  The request source generates a memory request to the main memory.  The data buffer is provided between the request source and the main memory and temporarily stores memory request information from the request source.  The memory request control unit reads out the memory request information from the data buffer to execute and control access of the main memory.  The cache invalidation control unit controls cache invalidation processing with respect to the request source on the basis of the memory request information.  The information processing system further includes a data read address buffer and a data buffer control unit.  The data read address buffer stores a storage address of the memory request information in the data buffer.  The data buffer control unit reads out the storage address in the data read address buffer to access the data buffer.  A memory request address of the memory request information read out from the data buffer is used to perform the cache invalidation processing with respect to the request source.
Patent CA-2027758-A1 (CA)
Title: Gutter ferrule
Inventor: SCHOENHERR CURTIS A
IPC: E04D13/072
Filed: 1990-10-16
Abstract: ABSTRACT OF THE DISCLOSURE     This invention is directed to a gutter ferrule comprised of a plastic material, such as ABS or polypropolene.          The advantages of producing the ferrule from a plastic material include the ability to injection mold the ferrule such that the entire piece is continuous without any seams.   The plastic ferrule is generally a tubular shape in which one end has a funnel portion formed to it in a continuous fashion.  The funnel portion enables a worker to more easily guide a support spike through the gutter walls and gutter ferrule into a support structure such as the eave of a roof.   In the preferred embodiment,  the  funnel portion has  a generally rectangular opening, however, other shapes offer the same advantages.
Patent CA-2031833-A1 (CA)
Inventor: DUBIEF CLAUDE
IPC: A61K8/39
Filed: 1990-12-07
Abstract: Société Anonyme dite : L'OREAL "Composition cosmétique réductrice pour la permanente des cheveux, à base de cystéamine et/ou de son dérivé N-acétylé et d'un polymère cationique, et son utilisation dans un procédé de déformation permanente des cheveux." Composition cosmétique réductrice, contenant une association d'un agent réducteur et d'un polymère cationique. L'agent réducteur est la cystéamine ou l'un de ses sels et/ou la N-acétylcystéamine et le polymère cationique est un copolymère de 45 à 99,5 moles % de N-vinylpyrrolidone et de 55 à 0,5 moles % d'acrylate ou méthacrylate de dialkyle (C1-C4) aminoalkyle (C1-C18) non quaternisé. Utilisation de la composition dans un procédé de déformation permanente des cheveux à froid.
Patent CA-2032316-A1 (CA)
Title: Process for the preparation of symmetrical azodinitrile dicarboxylic acids from keto acids
Inventor: LAI JOHN T
IPC: C07C253/00
Filed: 1990-12-14
Abstract: ABSTRACT            The preparation of symmetrical azodinitriles prepared from keto acids is disclosed.  A keto acid of the formula   is reacted with M(CN)x and an ammonia source to obtain an aminonitrile metal carboxylate of the formula   The  aminonitrile metal  carboxylate  is  reacted with M1(OCl)x with the proviso that no alcohol or surface active agent is utilized to form a metal salt of an azo compound.  This metal salt is reacted with mineral acid to give the symmetrical azodinitrile compound of the formula   R1 is an alkyl group containing from 1 to about 12 carbon atoms and R2 is an alkylene group containing from 1 to about 12 carbon atoms.  M is a metal comprising lithium, sodium, potassium, magnesium or calcium; M1 is a metal comprising sodium, potassium or calcium; and x is the valence of M and M1.           In another embodiment,  the preparation of mixed, symmetrical azonitrile initiators prepared from keto acids and aminonitrile is disclosed.  A keto acid of the formula   is reacted with M(CN)x and an ammonia source to obtain an aminonitrile metal carboxylate of the formula   The  aminonitrile metal  carboxylate  is  reacted with M1(OCl)x in the presence of a surfactant to form an azonitrile metal carboxylate.   The excess M1(OCl)x is reacted with an aminonitrile of the formula   in the presence of the surfactant to form a symmetrical azonitrile initiator   The  aminonitrile metal  carboxylate  is  reacted with mineral acid to give the symmetrical azonitrile compound of the formula   R1 is an alkyl group containing from 1 to about 12 carbon atoms and R2 is an alkylene group containing from 1 to about 12 carbon atoms.  M is a metal comprising lithium, sodium, potassium, magnesium or calcium; M1 is a metal comprising sodium, potassium or calcium; and x is the valence of M and M1.           In   another   embodiment,   disclosed   are processes for the preparation of mixed azodinitriles in-itiators of the formulae                  ,      , and   These initiators are prepared by reacting a keto acid of the formula   with M(CN)x, a hydrazine source, a ketone of the formula   and hydrochloric acid to form          ,           , and   The hydrazo intermediates are reacted with chlorine gas in the presence of  acetone solvent to oxidize the mixture of hydrazo  intermediates to the mixed azo-nitrile initiators.   R1 is an alkyl group containing from about 1 to about 12 carbon atoms, R2 is non-exis-tent or an alkylene group containing from 1 to about 12 carbon atoms, or a cycloalkylene or alkyl cycloalkylene group containing from about 3 to about 12 carbon atoms, R3 and R4 are alkyl groups containing from 1 to about 12 carbon atoms, or one of R3 and R4 is an alkoxy group containing from 1 to about 4 carbon atoms and M is a metal comprising lithium, sodium, potassium, magnesium, or calcium.
Patent CA-2034553-A1 (CA)
Title: Method for producing recombinant immunoglobulins
Inventor: LAW MING-FAN
IPC: C12R1/91
Filed: 1991-01-18
Abstract: TITLE OF THE INVENTION METHOD FOR PRODUCING RECOMBINANT IMMUNOGLOBULINS            ABSTRACT OF THE DISCLOSURE            A method for producing recombinant immunoglobulins in which the unique complementarity determining regions of immunoglobulins from a first animal monoclonal antibody are inserted by recombinant technology into a uniquely selected framework of a second animal, including humans. The recombinant DNA constructs of the invention can be used to transfect cells which will produce the recombinant immunoglobulins.
Patent CA-2037599-A1 (CA)
Title: Color-coded training method
Inventor: TARVIN DIANA J
IPC: B42D15/10
Filed: 1991-03-06
Abstract: ABSTRACT A color-coded system of training illiterate, mentally handicapped or dyslexic individuals in the performance of certain tasks includes specifying colors designating particular objects and the task or operation to be performed with the object bearing a particular color. Color-coded visual indicators such as flash cards may be used to teach the individual to associate the color with the object and the operation.
Patent CA-2038144-A1 (CA)
Inventor: TURCZYN JAMES F
IPC: F02D17/04
Filed: 1991-03-13
Abstract: F, brake mechanism wherein a bracket is attached to a small engine. The bracket comprises two rotating arms, a spring, a brake pad and cable attachments.      When an operator of a small engine releases a cable attached to the brake assembly, the spring rotates an arm which further engages a brake pad for slowing the engine and stopping it. The cable may be attached to either arm for releasing and engaging the brake pad, which allows the small engine to be mounted on an apparatus in more than one orientation.
Patent CA-2038506-A1 (CA)
Title: Polygon tiling engine
Inventor: FISCHER DOUGLAS A
IPC: G09G5/36
Filed: 1991-03-18
Abstract: A polygon tiling engine (20) for use in a computer graphics display system. The computer graphics display system includes a high speed processor which provides lines of vertices, object type codes and START and STOP points for the vertice lines. The system further includes a VME bus (132).      An improved apparatus for polygon tiling (20) comprises apparatus for receiving the START and STOP points, instruction register (104) apparatus coupled to the high speed processor for receiving instruction codes, object storing apparatus (106), a state machine (110) for controlling the polygon tiling apparatus, a polygon address (108) generating machine, a user defined object memory, a multiplexer and a triple buffered memory (116). Information is sent from the high speed processor to the tripled buffered memory (116), instruction registers and START and STOP registers. The information is processed into polygon addresses (108) by the polygon generating apparatus. The polygon tiling (20) apparatus is capable of tiling terrain data, multivertice polygons and user defined objects. The user defined objects are preferably stored in a link list random access memory (112). The state machine (110) controls the polygon address 108 generator and receives instructions from the instruction register (104). User information is supplied on the VME bus.      Tiled polygons are output to a polygon sort engine for further processing.
Patent CA-2038531-A1 (CA)
Inventor: MICHAEL DAVID J
IPC: C04B35/66
Filed: 1991-03-18
Abstract: A mix for forming a carbon-bonded refractory comprising from about 8 to 30 wt.% of a high purity carbon, about 0.1 to 1 wt.% of aluminum metal, magnesium metal, or a mixture thereof, and the balance a high purity magnesite, and for each 100 wt.% of said magnesite, carbon, and metal, a carbonaceous bonding agent in an amount sufficient to bond the mix; said carbon containing at least about 98% carbon and said magnesite containing at least about 98% MgO, and con-taining less than about 0.03% boron oxide, less than about 0.3% silica, and having a CaO/SiO2  weight ratio above about 2, and the resultant carbon-bonded refractory shapes and liners for metal processing equipment, especially BOF, made from such shapes and the method of increasing the life of liners for such equipment.
Patent CA-2044540-A1 (CA)
Title: Personal computer with removable media identification
IPC: G06F12/02
Filed: 1991-06-13
Abstract: This   invention   relates   to   personal   computers,   and particularly to a personal computer having provision for identifying the storage capability of removable media used in  a  direct  access  storage  device  associated  with  the computer.   The  apparatus disclosed distinguishes  among a plurality of types of removable media potentially used in removable media direct access storage devices using at least certain ones of a plurality of signal communicating pathways extending between a storage device and a controller for the storage device to identify to the controller the type of media inserted into the device with which the controller is communicating.
Patent CA-2045527-A1 (CA)
Title: Methode d'assemblage par fusion d'elements creux en plastique
Inventor: STAFFORD TREVOR G
IPC: B29C65/14
Filed: 1990-11-21
Abstract: Le procédé décrit consiste à assembler des éléments tubulaires, tels que des tuyaux d'amenée de gaz naturel (10, 12), en polyéthylène ou en tout autre matériau plastique au moyen d'un manchon de revêtement interne (14) et à procéder à l'application de chaleur sur les faces extérieures des tuyaux au moyen d'une unité chauffante électrique (18). Après refroidissement, l'unité chauffante est retirée. La surface externe du manchon de revêtement interne (14) adhère par fusion contre les faces intérieures des tuyaux. Les parties d'extrémité des tuyaux adhèrent par fusion au niveau de l'interface (30). Le manchon de revêtement intérieur est par exemple en polyéthylène de poids moléculaire supérieur à un demi-million et contenant comme charge du carbone finement divisé. Le manchon de revêtement intérieur est extrudé et étiré à froid, de façon à ce que son diamètre se réduise, pour permettre un ajustage étroit dans les tuyaux. L'application de chaleur entraîne une dilatation du manchon de revêtement intérieur supérieure à celle des tuyaux. Le manchon de revêtement intérieur conserve suffisamment de rigidité pour appuyer contre les faces internes des tuyaux. La pression du matériau en fusion et le fluage qui en résulte ainsi que des dentelures prévues sur le manchon de revêtement intérieur assurent un blocage mutuel des tuyaux raccordés au niveau de l'interface d'adhésion. L'utilisation d'un tel manchon de revêtement intérieur entraîne une chute de pression du gaz s'écoulant dans les tuyaux qui n'est pas supérieure à celle causée par les cordons de soudage internes résultant des techniques habituelles d'assemblage bout-à-bout par fusion.
Patent CA-2046542-A1 (CA)
Inventor: JOHNSON SONYA
IPC: A23L27/20
Filed: 1991-07-09
Abstract: A new chewing gum flavor ingredient, cinnamic aldehyde propylene glycol acetal (CAPGA), has been synthesized and has the structure displayed below. CAPGA is used in chewing gum compositions, particu-larly cinnamon and fruit-flavored gum.  CAPGA also is used in a new method of making chewing gum, particular cinnamon and fruit-flavored gum.  CAPGA is added to other food, drug or other oral composi-tions, including tooth paste.  CAPGA also is used in a new method of making other food, drug or other oral compositions.
Patent CA-2048282-A1 (CA)
Title: Apparatus for manufacturing an electric cable with a flexible belt
Inventor: MIZUO YASUHIKO
IPC: H01B7/04
Filed: 1991-08-01
Abstract: An  apparatus  for  manufacturing  an  electric  cable comprises a flexible belt on which a plurality of longitudinal projections are formed, a motor to move the flexible belt at the same speed as a cable core covered with an insulating layer, and a  forming unit  comprising a plurality of  rolls  to  form a conductive tape having a wavy pattern around the cable core.  The conductive tape  is  formed around the cable core by radial directional force applied via the projections to the flexible belt, when the cable core and the conductive tape are passed through the forming rolls in company with the flexible belt.          Consequently, the conductive tape is able to be formed around the insulating layer of the cable core with keeping the wavy pattern in shape.
Patent CA-2049132-A1 (CA)
Title: Inner spring mattress with core member and method for construction thereof
Inventor: PISCZAK PHILLIP J
IPC: A47C27/06
Filed: 1991-08-13
Abstract: ABSTRACT           A mattress, and a method for manufacturing a mattress, having an inner spring assembly with a plurality of interconnected coil springs, and resilient core members located within selected springs to impart different support characteristics to the mattress at the location of the core members.
Patent CA-2050085-A1 (CA)
Title: Trailer sensor for railroad hitch
Inventor: HOLT JAN D
IPC: B61D45/00
Filed: 1991-08-28
Abstract: Abstract of the Disclosure:        A trailer sensor (83) for use on a retractable railcar trailer hitch (1) is disclosed.  The hitch has a hitch head (3) for capturing a kingpin (K) of a trailer (T), a locking mechanism (35) for latching the hitch in its erect position, and a manually operable release mechanism (67) for retracting the hitch.  A movable sensing element (85) carried on the hitch head senses the presence or absence of a trailer.  A rod (93) moves the sensing element in response to operation of the release mechanism.  If a trailer is supported by the hitch, the assembly blocks movement of the sensor and prevents retraction of the hitch.  If no trailer is supported by the hitch, the sensing element allows the release mechanism to unlock the hitch so it can retract.