baber/WOPTO huggingface dataset:
Patent CA-2065632-A1 (CA)
Title: Procedure for the preparation of bisoxazolidines containing urethanic groups
Inventor: GRECO ALBERTO
IPC: C07D263/04
Filed: 1992-04-09
Abstract: PROCEDURE FOR THE PREPARATION OF BISOXAZOLIDINES CONTAINING URETHANIC GROUPS.     Abstract New procedure for the preparation of polyoxazolidines which can be defined with the general formula:       This procedure, which excludes the use of isocyanates, requires the simple transesterification of the dicarbamate of a diamine with an N-hydroxyalkyloxazolidine.
Patent CA-2066269-A1 (CA)
Title: Differential pressure shuttle valve
Inventor: HENDERSHOT JAY A
IPC: B60T8/50
Filed: 1990-08-30
Abstract: The differential pressure shuttle valve (10) comprises a stepped bore (14) having enlarged (16) and reduced (18) diameter sections. The reduced diameter section (18) communicates with first (20), second (22), and third (24) openings, and the enlarged diameter section (16) is divided into two chambers (50, 60) by an enlarged end (42) of a valve member (40, 140, 240). The valve member (40, 140, 240) includes a central through passage (48, 148, 248) which communicates with the first chamber (50) between the enlarged end (42) of the valve member (40, 140, 240) and the enlarged diameter section (16) of the stepped bore (14). The second chamber (60) is defined between the enlarged end (42) of the valve member (40) and a shoulder (17) disposed between the enlarged (16) and reduced (18) diameter sections of the bore (14). The second chamber (60) communicates with a fourth opening (70) and includes therein a resilient member (80) which biases the valve member (40, 140, 240) away from the first opening (20). A pressure differential across the valve member (40, 140, 240) causes the valve member (40, 140, 240) causes the valve member (40, 140, 240) to shuttle and compress the resilient member (80) so that a reduced end (44, 144, 244) of the valve member (40, 140, 240) engages an end of the bore (14) or insert (28, 90, 190, 228) such that the first opening (20) is isolated from the second (22) and third (24) openings.
Patent CA-2070571-A1 (CA)
Inventor: ALDOUS STEPHEN C
IPC: G06K19/077
Filed: 1992-06-05
Abstract: A  communications  card  capable  of  being  mounted  in electrical  communications  with  a  computer  has  formed therethrough an aperture so sized and shaped as to be capable of receiving a physical/electrical media connector.  The media connector has a biased retention clip, a contact pin block, and contact pins.  The retention clip has several standardized characteristics including a broad fixed end protruding from an outer surface of the contact pin block.  The broad fixed end tapers abruptly at a transition notch down to a narrow free end, capable of being manipulated by a user to remove the physical/electrical media connector from the aperture in the communications card.  In use, a media connector is inserted directly into the aperture in the communications card, the aperture being in contact with a plurality of contact wires fixed within the communications card.  The communications card is divided into a retractable access portion of the communic-ations card which can be directly accessed by manipulating an actuating  mechanism  releasing  a  retention  means  thereby allowing a spring to push the retractable access portion of the card outside of the computer housing.   The retractable access portion of the communications card may be reinserted back into the computer housing to be carried internally when not in use.
Patent CA-2070574-A1 (CA)
Title: Fluid transferring apparatus imitating flapping movement of bees
Inventor: TSUTAHARA MICHIHISA
IPC: F04D33/00
Filed: 1992-06-05
Abstract: ABSTRACT OF THE DISCLOSURE                     The present invention provides a fluid transferring apparatus which achieves a second-dimensional flow of fluid with high efficiency and at low noise by imitating Weis-Fogh mechanism with use of a simple mechanism.   In the fluid transferring apparatus,  a wing assembly X comprised of a predetermined number of plate-like wings is provided in a transverse direction of a flow passage.  A wing assembly X is supported by a link of a crank mechanism which is constituted of a crank rotated by a motor,  a slider slidable in a direction orthogonal to a direction of a flow in a flow passage and the link coupling the crank with the slider, so that rotational motion of the crank is transmitted to the slider as a reciprocal movement.  While an angle of attack of each wing is changed by oscillating action of the link, each wing is moved in a transverse direction of the flow passage as the link is reciprocated, thereby achieving transfer of fluid.     :
Patent CA-2071578-A1 (CA)
Title: Apparatus and method for cooling a mould
Inventor: LAWRENCE CHARLES T
IPC: C03B9/32
Filed: 1992-06-19
Abstract: ABSTRACT     Apparatus for cooling the moulds of apparatus for moulding  hollow glassware  comprises a mould holder  arm having a passage  for cooling fluid,  the outlet of said passage being adapted to supply cooling fluid to a mould through an opening between the top and bottom of the mould.          The invention also includes a mould having secondary cooling passages   extending   substantially   parallel   to   the longitudinal  axis of the mould and linked to a primary cooling passage substantially orthogonal to said axis and having an inlet port in the exterior face of the mould.
Patent CA-2072389-A1 (CA)
Title: Tube feed system for an apparatus which inserts pumps into test tubes
Inventor: GOLIAS TIPTON L
IPC: B01L99/00
Filed: 1992-06-25
Abstract: ABSTRACT OF THE DISCLOSURE A pump inserter apparatus receives a row of pump mechanisms, each having a spike with a system of bores. Each pump mechanism is provided with a bellows for forcing air through the spike, and a flexible tube is lodged in the spike.  The pump inserter apparatus includes a reciprocating drive system which forces the pump mechanisms downward until their spikes extend through resilient closures on a row of test tubes disposed in a rack below the pump mechanisms.  The reciprocating drive system then raises the pump mechanisms and the test tubes clinging thereto to a tube feed system provided in the pump inserter apparatus.  The tube feed system includes a fixed roller and a swingable roller.  The swingable roller is movable between an open position and an a closed position in which the flexible tubes are pinched between the rollers.  The rollers are rotated while in their closed position to advance the flexible tubes downward until the bottom ends of the flexible tubes reach a desired depth within the test tubes.  After removal from the pump inserter apparatus, the bellows of a pump mechanism can then be manually compressed to pressurize the interior of the test tube and force fluid from the test tube out through the flexible tube.
Patent CA-2074515-A1 (CA)
Title: Method for producing dichloropentafluoropropanes
Inventor: MORIKAWA SHINSUKE
IPC: B01J27/08
Filed: 1991-11-27
Abstract: ABSTRACT    The present invention relates to a simple method for producing 3,3-dichloro-1,1,1,2,2-pentafluoropropane (R225ca) and 1,3-dichloro-1,1,2,2,3-pentafluoropropane (R225cb) in good yield and at high selectivity by reacting tetrafluoroethylene (C2F4) and dichlorofluoromethane (R21) in the presence of a certain specific catalyst.    The specific catalyst in the present invention is (1) a catalyst comprising halogenated oxide containing at least one element of Group 4, Group 5 and Group 13 such as Ti, Zr, Hf, V, B and Ga, or (2) a catalyst comprising halogenated oxide containing at least one element selected from Group 4, Group 5 and Group 13 such as Ti, Zr, Hf, V, B, Al and Ga and at least one element selected from Group 2, Group 6, Group 12 and Group 14 such as Ba, W, Zn, Si, Bi and P.    Further, in the present invention, it is preferred to react C2F4 with R21 in such a state that C2F4 is in excess.    According to the method of the present invention, it is possible to suppress formation of 2,2-dichloro-1,1,1,3,3-pentafluoropropane (R225aa) and 2,3-dichloro-1,1,1,2,3-pentafluoropropane (R225ba) as by-products.          These by-product, R225aa and R225ba, have boiling points close to those of R225ca and R225cb, the desired products of the present invention, and they can hardly be separated from R225ca and R225cb by a usual method such as distillation. Further, according to the method of the present invention, formation of chloroform (CHC13) can substantially be suppressed.  This by-product CHC13 forms azeotope with R225ca and R225cb, thus it can hardly be separated from R225ca and R225cb.    According to the method of the present invention, formation of the above-mentioned hardly separable impurities (R225aa, R225ba and CHC13) can be substantially suppressed, and therefore the method is excellent as a method for producing pure R225ca and R225cb.
Patent CA-2074566-A1 (CA)
Title: Method for the manufacture of 1,3-propanediol
Inventor: UNRUH JERRY D
IPC: C07C31/20
Filed: 1992-07-23
Abstract: ABSTRACT   1,3-Propanediol is manufactured by the hydration of acrolein in an aqueous solution over a fully hydrated, alumina-bound zeolite with a pore size > 5 angstroms to form 3-hydroxypropanal and hydrogenation of the 3-hydroxypropanal typically in an aqueous solution in the presence of nickel catalyst.
Patent CA-2077237-A1 (CA)
Title: Sor exposure system and method of manufacturing semiconductor devices using same
Inventor: MORI MAKIKO
IPC: G03F7/20
Filed: 1992-08-31
Abstract: In an SOR exposure system for transferring patterns on masks to semiconductor wafers by using SOR light reflected by an X-ray reflecting mirror, a first shutter device for shielding at least .gamma. rays and a second shutter device for shielding X-rays are provided between the SOR ring and the mirror inside a beam port, and an exposure adjustment device for adjusting the amount of exposure when a circuit pattern on a mask is transferred to a wafer is provided between the mirror and the wafer.  As a result, the human body can be protected against radiation rays, such as gamma rays, generated from the SOR ring when electrons are implanted thereto or when the SOR ring is stopped.  Damage to the X-ray reflecting mirror caused by radiation rays is reduced, and stable reflectance of the mirror can be obtained.          Maintenance of the SOR exposure system is also made easier.
Patent CA-2077963-A1 (CA)
Title: Tool support platform for portable workbench
Inventor: HOULE ROBERT G
IPC: B23Q1/01
Filed: 1992-09-10
Abstract: TOOL SUPPORT PLATFORM FOR PORTABLE WORKBENCH           ABSTRACT     A tool supporting platform is provided for securing a tool to a portable workbench.  The platform comprises a flat board having a top support surface to which a tool is attach-able, and a bottom surface having a clamp engaging member secured thereto in a central area thereof for detachably securing the platform to opposed clamp jaw members of the workbench.  A tool locating grid is provided on the top surface of the flat board to locate a tool at a desired position relative to the workbench.  Securing holes are drilled at distinct positions on the grid to secure a desired tool over the top surface of the flat board by bolt fasteners.  A tool identification chart is provided on the top surface to identify specific groups of connecting holes with specific tools.
Patent CA-2078539-A1 (CA)
Title: Process for producing humanized chimera antibody
Inventor: SHITARA KENYA
IPC: C07K16/30
Filed: 1992-09-17
Abstract: A process for the production of humanized chimera antibody, wherein the chimera antibody is produced easily without changing any of the amino acids of its mouse antibody variable region, which comprises the steps of: (1) constructing a cassette vector by inserting a cDNA coding for a heavy chain constant region of human antibody into an expression vector for animal cell use and establishing a cloning site in the upstream region of the heavy chain constant region of said cassette vector for inserting a cDNA which encodes a heavy chain variable region of nonhuman animal antibody; (2) digesting a cDNA coding for the heavy chain variable region of nonhuman animal antibody with restriction enzymes; (3) inserting said cDNA coding for the heavy chain variable region of nonhuman animal antibody into the cassette vector, using a synthetic DNA which comprises a base sequence corresponding to the 5'-end side of said heavy chain constant region of human antibody and a base sequence corresponding to the 3'-end side of said heavy chain variable region of nonhuman animal antibody and is possessed of the restriction enzyme recognition sites on both of its ends, thereby constructing a humanized chimera antibody heavy chain expression vector in which said cDNA coding for the heavy chain constant region of human antibody and said cDNA coding for the heavy chain variable region of nonhuman animal antibody are linked together through said synthetic DNA; (4) constructing a cassette vector by inserting a cDNA coding for a light chain constant region of human antibody into an expression vector for animal cell use and establishing a cloning site in the upstream region of the light chain constant region of said cassette vector for inserting a cDNA which encodes a light chain variable region of nonhuman animal antibody; (5) digesting a cDNA coding for the light chain variable region of nonhuman animal antibody with restriction enzymes; (6) inserting said cDNA coding for a light chain variable region of nonhuman animal antibody into the cassette vector using a synthetic DNA which comprises a base sequence corresponding to the 5'-end side of said light chain constant region of human antibody and a base sequence corresponding to the 3'-end side of said light chain variable region of nonhuman animal antibody and is possessed of the restriction enzyme recognition sites on both of its ends, thereby constructing a humanized chimera antibody light chain expression vector in which said cDNA coding for the light chain constant region of human antibody and said cDNA coding for the light chain variable region of nonhuman animal antibody are linked together through said synthetic DNA; (7) introducing these expression vectors into host cells to obtain a transformant; and (8) culturing said transformant in an appropriate culture medium, thereby allowing the transformant to produce and accumulate a humanized chimera antibody, and collecting said humanized chimera antibody from the resulting culture broth.
Patent CA-2083159-A1 (CA)
Title: The combination of growth hormone and insulin-like growth factor-1 enhances growth
Inventor: CLARK ROSS G
IPC: A61K47/10
Filed: 1991-05-31
Abstract: A method is disclosed for enhancing growth of a mammal by administration of a combination of effective amounts of IGF-I and GH so as to enhance the growth of the mammal over the enhancement in growth achieved using either IGF-I or GH alone in an amount equal to that used for either IGF-I or GH, respectively, in the combination. Preferably, the mammal is a child, the IGF-I is native-sequence, mature human IGF-I or human brain IGF-I, and the GH is native-sequence, mature human GH with or without a terminal methionine. In another preferred embodiment, the mammal is a non-human animal of economic importance such as a cow or pig.
Patent CA-2083251-A1 (CA)
Title: Process for selective hydrodefluorination
Inventor: FERTEL LAWRENCE B
IPC: B01J23/04
Filed: 1992-11-18
Abstract: ASC/kmf PROCESS FOR SELECTIVE HYDRODEFLUORINATION     ABSTRACT      A process for the selective hydrodefluorination of a tetrafluorophthalimide compound of the formula            I   where X is 1 and R is a monovalent organo group; or X is 2 and R is a divalent organo group; comprises reacting (I) the tetrafluorophthalimide with zinc in an aqueous alkali metal hydroxide medium.  The product may be hydrolyzed to form 3,4,6-trifluorophthalic acid.
Patent CA-2086130-A1 (CA)
Title: Hockey shooting practice system
Inventor: WALKER WARREN T
IPC: A63B69/00
Filed: 1992-12-16
Abstract: ABSTRACT               HOCKEY  SHOOTING  PRACTICE  SYSTEM  A 1/4 inch thick sheet of high density polyethelene is made with parallel spaced smooth flat surfaces and is adapted to adhere to any flat surface and to provide, in itself, a surface for hockey players/to practice their shooting skills. The sheet is portable and has bevelled edges  to assist a player to flip a puck onto the sheet with his stick .
Patent CA-2086399-A1 (CA)
Title: Split stream burner assembly
Inventor: VATSKY JOEL
IPC: F23D1/02
Filed: 1992-12-29
Abstract: A burner assembly in which an annular passage is provided for transporting an fuel/air mixture to a furnace inlet. A conical divider member is disposed within the annular passage for dividing the stream of fuel/air passing through the passage into two radially-spaced coaxial; passages. A plurality of angularly-spaced walls are disposed within one of said passages for dividing the latter passage into a plurality of segments for splitting up fuel/air stream so that, upon ignition of said fuel, a plurality of flame patterns are farmed. Ribs are provided on one of the surfaces defining the other passage to concentrate the fuel portion of the mixture flowing through said latter passage to form an additional flame pattern which is surrounded by the above-mentioned plurality of flame patterns.
Patent CA-2086417-A1 (CA)
Inventor: DELLA-CIOPA GUY
IPC: C12R1/19
Filed: 1991-06-28
Abstract: The present invention is directed to a process for producing melanins,  their  precursors  and  their  analogs, hereinafter referred to generically as melanins.  According to the invention, melanins are produced in amounts greater than about 0.2 grams dry weight per liter of growth medium. The  enhanced  production  of  melanin  can  be  achieved  by manipulating the constituents of the growth medium, and/or attenuating fermentation conditions, and/or by genetically engineering microorganism to produce melanins, and/or mutating the microorganisms.
Patent CA-2086503-A1 (CA)
Inventor: SAGE JEAN-MARC
IPC: C08L77/10
Filed: 1992-12-30
Abstract: The invention relates to new polyamides comprising (a)  45-75 wt%  of unit x,T;  x being between  4  and  12 inclusive, the x,T unit being  the condensation product of a diamine having x carbon atoms and of terephthalic acid; (b) 55-25 wt% of an aliphatic unit -NH-(CH2)n-CO, n being between 6 and 14 inclusive.  The instant composition exhibit a Tg less than 130C,  a Tm higher than 230C and high crystallinity.
Patent CA-2088086-A1 (CA)
Inventor: PARE PIERRE
IPC: B42D15/02
Filed: 1993-01-26
Abstract: 2 Précis C'est dans le cadre environnemental contemporain et du souci sans cesse croissant de préserver notre environnement que l'invention a été développée. Le papier coûte des arbres et notre besoin de consommation est très élevé dans ce domaine particulier. Ces besoins peuvent parfois nous sembler créés de toutes pièces et ce, dans le seul but de la "consommation". Nous pensons tout particulièrement aux cartes de souhaits que nous expédions pour toutes sortes de raisons: fêtes, prompt rétablissement, Nouvel an, etc. Ces cartes peuvent, avec notre invention, devenir reutilisables et même, on pourra dorénavant les créer de toutes pièces avec des photos ou des illustrations que nous possédons déjà. Donc, une réutilisation de produits déjà fabriqués qui n'avaient, jusqu'à présent, aucune utilité réelle. De plus, cette invention développera des idées créatrices et plus personnalisées chez les gens tout en permettant d'épargner quelques arbres et combler ce "besoin" de notre société moderne. 3 Il ne s'agira plus que de découper l'illustration d'une carte reçue, par exemple, et de la coller sur notre carton encollé conçu à cet effet pour recréer une nouvelle carte. On pourra aussi utiliser une photo, une carte postale ou toute autre illustration qui nous plaît ou qui convient à la circonstance à souligner.
Patent CA-2088337-A1 (CA)
Title: Supervisory control and data acquisition system and method of operation
Inventor: GELLER HAIM
IPC: H04Q9/14
Filed: 1993-01-28
Abstract: This invention relates to a supervisory control and data acquisition (SCADA) system in which a central station (10) sends control information to, and acquires information from remote stations (11, 12) over a wire, radio or other link. Each station comprises a tabular memory (15 - 18) comprising storage locations in an 'x' direction for storing data relating to different elements of the second system and storage locations in a 'y' direction for storing data relating to different parameters of those elements. Transmitting means are provided for transmitting a message from one unit to the other unit, said message comprising an 'x' part, a 'y' part and a qualifier, for reading from and writing to storage locations in the tabular memory of the other unit depending on the result of a logical operation defined by the qualifier.
Patent CA-2089225-A1 (CA)
IPC: G01N25/20
Filed: 1993-02-10
Abstract: The present invention relates to differential analytical techniques for determining the composition, phase, structure, identification or other properties of a material that undergoes a transition as function of a driving variable.          As applied to differential scanning calorimetric analysis (DSC), the preferred embodiment comprises:  (1) heating a sample of the material with a linear temperature ramp that is modulated with a sinusoidal heating rate oscillation; and (2) deconvoluting the resultant heat flow signal into rapidly reversible and non-rapidly reversible components.
Patent CA-2095266-A1 (CA)
Inventor: LEPINAY MICHEL
IPC: A47G23/02
Filed: 1993-04-30
Abstract: Préçis Pour conserver une bouteille de vin on sait qu'il faut la conservér à l'horizontale pour que le bouchon de liège reste humide, donc étanche. La plupart du temps on place les bouteilles sur un support spécialement conçu pour tenir fermement les bouteilles à l'horizontale. Ce support a été conçu pour tenir une ou plusieurs bouteilles de vin de format régulier de 750 Ml. Il a la particularité d'être décoratif et très simple. Il tient debout à 45.degree. dans un équilibre parfait sans aucun autre support ou patte lorsqu'on insert une ou plusieurs bouteilles de vin. Ce support peut être fabriqué en format de 1, 2, ou 3 bouteilles selon la largeur et le nombre de trous fait sur une planche de bois ou tout autre matériau assez rigide pour supporter le poid d'un certain nombre de bouteilles de vin.
Patent CA-2098269-A1 (CA)
Inventor: CHOLET HENRI
IPC: E21B43/12
Filed: 1993-06-11
Abstract: DISPOSITIF ET METHODE DE POMPAGE D'UN LIQUIDE VISQUEUX COMPORTANT L'INJECTION D'UN PRODUIT FLUIDIFIANT, APPLICATION AUX PUITS HORIZONTAUX La présente invention concerne un dispositif de pompage d'un fluide de forte viscosité comportant une pompe reliée à l'extrémité inférieure d'une colonne tubulaire au fond d'un puits. Le dispositif comporte un dispositif de séparation du gaz libre et un moyen d'injection d'un produit fluidifiant. L'injection se fait sensiblement au niveau des orifices d'admission du fluide, à partir d'un tube remontant jusqu'en surface. L'invention concerne également une méthode de pompage dans laquelle on injecte un produit fluidifiant dans le fluide visqueux à l'admission de la pompe.