baber/WOPTO huggingface dataset:
Patent CA-1288660-C (CA)
Title: Poppet valve
Inventor: STEPP LEE W
IPC: F16K15/06
Filed: 1987-07-14
Granted: 1991-09-10
Abstract: ABSTRACT The improved poppet valve of the present invention comprises a simpler and shorter valve which meets or exceeds prior art performance characteristics while being easier and cheaper to make and to fabricate into a float collar or float shoe.  The improved poppet valve of the present invention comprises a tubular one-piece body having flange means on the exterior thereof, and a downward-facing valve seat at the bottom interior thereof, with a valve guide spider thereabove.  A dome-shaped poppet valve seats on the aforesaid valve seat, and has coaxially secured thereto an upwardly extending stem bolt which protrudes through and above the valve body guide spider.  A spring disposed about the stem bolt biases it upwardly, acting on the top surface of the spider and on a lower surface of a spring retention cap secured to the top of the stem bolt.  In such a manner, the poppet valve is biased into engagement with the valve body seat at the lower end of the valve assembly.  The poppet valve of the present invention may be employed in a section of casing or in a guide shoe to form a float collar or float shoe, respectively, wherein the valve assembly is secured in place by a cement sheath.
Patent CA-1321673-C (CA)
Title: Copolymere acrylate acrylamide a bas poids moleculaire et procede pour empecher au moins en partie la formation de depots de sels issus de milieux aqueux
Inventor: ROQUE CLAUDE
IPC: C02F5/08
Filed: 1987-10-02
Granted: 1993-08-24
Abstract: L'invention concerne des copolymères à bas poids moléculaire d'acide acrylique ou d'acide acrylique au moins partiellement salifié et d'acrylamide, leur procédé de préparation et leur utilisation. Ces copolymères peuvent être utilisés pour empêcher la formation de dépôts sur les parois d'installations pétrolières ou géothermales, à partir de systèmes aqueux renfermant des sels dissous. Le copolymère est caractérisé en ce qu'il comprend des motifs dérivant de l'acide acrylique et de l'acrylamide dans un rapport pondéral allant environ de 95:5 à 25:75. En outre, la distribution des masses moléculaires dudit copolymère, déterminée par chromatographie analytique d'exclusion est telle que 60 % au moins des masses moléculaires en poids sont inférieures à 500.
Patent CA-1319640-C (CA)
Title: Method and apparatus for electrochemically cleaning gun bores and the like
Inventor: BRILMYER GEORGE H
IPC: C25F1/00
Filed: 1987-11-18
Granted: 1993-06-29
Abstract: ABSTRACT OF THE DISCLOSURE     The metal fouling which is deposited in the bores and other interior parts of firearms as a result of firing is selectively removed by an electrochemical process which is innocuous to the ferrous base metal of the firearm.  A low voltage d-c potential is applied between the ferrous base metal of the firearm to be cleaned, which is maintained as the positive electrode with respect to an auxiliary electrode which is, for example, inserted into the bore and electrically insulated therefrom.  An electrolyte occupying the space between the interior of the bore and the auxiliary electrode is selected to be non-oxidizing to the ferrous base metal and capable of solubilizing the electrochemically oxidized metal fouling to be removed. Metal fouling or deposits are completely removed without affecting the ferrous base metal of the bore.  The auxiliary electrode onto which the metal fouling is electrodeposited may conveniently comprise a long, narrow brush with a conductive rod and nonconductive bristles, the latter acting to maintain electrical separation of the electrodes.  The low voltage d-c potential may be applied with a d-c power source or a potentiostat with suitable reference electrode.  The method may also be applied to cleaning dies and molds used in die casting and powder metallurgy or the like, where the build-up of metal or metal oxide deposits adversely affects quality, accuracy, or tolerance and repeated abrasive or other cleaning is undesirable.
Patent CA-1311583-C (CA)
Title: Peptide derivatives and their application, in particular in therapy
Inventor: MARGUERIE DE ROTROU GERARD A
IPC: C07K14/75
Filed: 1987-12-14
Granted: 1992-12-15
Abstract: Novel peptide derivatives and their application, in particular in therapy ABSTRACT OF THE TECHNICAL CONTENT OF THE INVENTION     The subject of the invention is peptide derivatives corresponding to formula X1 - X2 - Gly - Asp - X3 - X4   (I) . in which:          X1  represents a hydrogen atom, a N-protecting group, an amino acid residue or a N-protected amino acid residue, X2  represents a residue of L-Arg or D-Arg, L-Orn or D-Orn, N-aminocarbonyl  -L-Orn or N-aminocarbonyl-D-Orn, or L-Lys, or D-Lys, X3 represents a residue of L-Trp, D-Trp, L-Leu, D-Leu, L-Ile, D-Ile, L-Phe, D-Phe or a chain of 2 or 3 of these residues, and X4 represents a -OH group, -NH2 group, -OR1  group in which R1 represents an alkyl radical of Cl to C4, a NHR2  group in which R2 represents an alkyl radical of Cl to C4, or an amino acid residue.          These derivatives are useful in therapy on account of their platelet aggregation inhibiting activity.
Patent CA-1326014-C (CA)
Inventor: OTTOW ECKHARD
IPC: C07J41/00
Filed: 1988-01-22
Granted: 1994-01-11
Abstract: (1) Abstract of the Disclosure 11.beta.-substituted steroids of the formula   wherein A and B   together represent a second bond between the 6-position and 7-position carbon atoms, or, respectively, are each H; X         is 0, two H atoms or hydroximino; Z         is the residue of a pentagonal or hexagonal ring which is optionally substituted and optionally saturated; R1        is vinyl, C3-7-cyclo-1-alkenyl, phenyl, naphthyl or 5- or 6-membered heterocyclic aromatic having at least one N, O or S atom, each being unsubstituted or substituted by 1-3 halogen atoms, 1-3 C1-4-alkyl, C1-4-alkoxy, C1-4-acyl, C2-10-alkenyl, C1-4-acyloxy, phenyl, nitro, hydroxy, carboxy, cyanide, COOR4 or amino optionally substituted by 1-2 C1-4-alkyl; R2        is methyl or ethyl, R3    is H, Cl or methyl; and (2) R4     is C1-4-alkyl optionally substituted by phenyl which itself is optionally substituted by C1-4-alkyl, C1-4-alkoxy, halogen or phenyl have valuable pharmacological properties.
Patent CA-1295179-C (CA)
Inventor: BROWN DOUGLAS B
IPC: B30B9/28
Filed: 1988-02-19
Granted: 1992-02-04
Abstract: ABSTRACT OF THE DISCLOSURE Apparatus for compacting and advancing a mass of particulate or fibrous material to a discharge end of a conduit combines an auger with a reciprocating annular piston.  The improvement of the invention is in driving the piston by way of a flywheel equipped crankshaft which also drives a dynamically counter balancing member to reduce vibrations transmitted to the frame of the apparatus.  Special hydrostatic guide sleeves are used to guide the reciprocating piston at a high speed.  Further improvements include gas and liquid vents and a cooling jacket, both associated with the conduit to increase efficiency of the compacting.  A density sensor controlled conical choke member at the discharge end assists in maintaining uniform density of the highly compacted plug of the material.  Also, it breaks up the exiting plug to improve subsequent processing of the material.  The uniformity of the compacting is assisted by a modified shape of the leading face of the piston which is flat at the outer pheriphery and frusto conical near the minor diameter of the piston. The conduit preferably tapers at about 7' to 21' toward its discharge end.
Patent CA-1327489-C (CA)
Inventor: GRYNAEUS PETER S
IPC: D04H5/02
Filed: 1988-03-11
Granted: 1994-03-08
Abstract: ABSTRACT      Disclosed is a composite adhesive web and a process for the production of such a web.  The thermally adhesive web of the invention is comprised of a composite of randomly arranged thermoplastic filaments or, parallel thermoplastic filaments interconnected by randomly arranged thermoplastic fibers or filaments, and a fibrous thermal adhesive nonwoven sheet containing thermoplastic fibers, preferably low melting thermally adhesive fibers.
Patent CA-1331295-C (CA)
Inventor: DOONAN JEFFERY W
IPC: C22C38/12
Filed: 1988-04-22
Granted: 1994-08-09
Abstract: ABSTRACT OF DISCLOSURE      A method of heat treating cold rolled steel strapping comprising rapidly heating the strapping to the dual phase temperature range at a rate of the order of 100°C per second, with  little or more soaking, and rapidly cooling the strapping at a rate of the order of 1000°C per second to form a microstructure comprising a matrix of recovery annealed cold work ferrite containing martensite and carbides dispersed through the matrix.  A heat treatment line for performing this method is described.   A heat treated cold rolled steel strapping produced by the method is also described.  The steel from which the strapping is made preferably has less than 0.2%C and includes Ti in the range 0.06 to 0.15% preferably about 0.08% and Nb in the range 0.02 to 0.05% preferably about 0.04%.
Patent CA-1298847-C (CA)
Title: Basic metal dihydrocarbylphosphorodithioates
Inventor: YODICE RICHARD
IPC: C10M137/10
Filed: 1988-05-04
Granted: 1992-04-14
Abstract: ABSTRACT OF THE DISCLOSURE      Basic  metal   dihydrocarbylphosphorodithioates   and phosphoromonothioates are prepared by employing a catalyt-ic amount of an alkali metal  or alkaline earth metal hydroxide or mixtures thereof.  Also basic, multiple metal complexes of various dihydrocarbylphosphorodithioic acids have been developed.  These salts and complexes are highly effective antiwear and antioxidant additives for function-al fluids, e.g., lubricating oils.
Patent CA-1298093-C (CA)
Title: Temperature changing device exhibiting improved evaporation characteristics
Inventor: THOMAS DENNIS A
IPC: F25B17/08
Filed: 1988-07-06
Granted: 1992-03-31
Abstract: TEMPERATURE CHANGING DEVICE EXHIBITING  IMPROVED EVAPORATION CHARACTERISTICS               Abstract Disclosed is a self-contained,  rapid cooling device that can be stored for indefinite periods without losing its  cooling  potential.    A  liquid  in  a  first  chamber undergoes a change of phase into vapor which cools the first chamber.  A sorbent in a second chamber is in fluid communication with the vapor and removes the vapor from the first chamber.    The  cooling process  is  facilitated by providing the interior surface of the first chamber with a wicking material to retain the largest possible contact between the liquid and the first chamber as the level of the liquid lowers during the vaporization process.  A phase separator  and  a  porous  space-filling  wick prevent unvaporized liquid from passing into the second chamber.
Patent CA-1294299-C (CA)
Title: Crane bucket coupling
Inventor: PERRY WILLIAM A
IPC: B66C3/00
Filed: 1988-07-18
Granted: 1992-01-14
Abstract: A B S T R A C T     Two bucket holder for crane buckets allows one bucket to be filled while the other is in use on the crane.  Means are provided for automatically disconnecting a just-returned bucket from the crane cable and connecting the other bucket.  Guide means for a returning bucket, and a universal bucket arm connection places the bucket arm in contact with the disconnect-connect means.
Patent CA-1280755-C (CA)
Inventor: STERN RICHARD M
IPC: C07D455/04
Filed: 1988-08-05
Granted: 1991-02-26
Abstract: ABSTRACT OF THE DISCLOSURE:           The compound 6, 7-dihydro-5, 8-dimethyl-9-fluoro-l-oxo-lH,5H-benzo  ¦ij¦  quinolizine-2-carboxylic acid, together with its esters,  acyl chlorides,  alkylaminoalkyl ester salts and pharmaceutically acceptable carboxylate salts are potent antimicrobial agents with a broad spectrum of activity.  In a process for producing this compound, four successive intermediates are created then utilised in the eventual synthesis.  The five intermediates are:  a) 5-carboxyl-6-fluoroquinaldine; b) 1,2-dihydro-6-fluoro-5-hy-droxymethylquinaldine; c) 6-fluoro-5-methyl-1, 2, 3, 4-tetrahydroquinaldine;    and  d)  diethyl 2-[N-(6-fluoro-5-methyl-1,2,3,4-tetrahydroquinaldinyl)]  methylenemalonate.
Patent CA-1290376-C (CA)
Inventor: KONDO JIRO
IPC: H05B3/20
Filed: 1988-11-03
Granted: 1991-10-08
Abstract: ABSTRACT OF THE DISCLOSURE            A ceramic heating plate which comprises a planar body including a ceramic substratum covered with a far-infrared ceramic layer on the top surface; a heating sheet attached to the back surface of the substratum, the heating sheet including a pair of lead terminals through which the heating plate is connected to a source of power; and wherein the ceramic layer contains ceramic particles exposed above the surface thereof 80 that far-infrared rays are radiated outside directly therefrom.
Patent CA-1332141-C (CA)
Title: Iii-v semiconductor growth initiation on silicon
Inventor: LEE JHANG W
IPC: H01L21/205
Filed: 1988-11-14
Granted: 1994-09-27
Abstract: III-V SEMICONDUCTOR GROWTH INITIATION ON SILICON Abstract of the Disclosure A GaAs containing nucleation layer is deposited upon Si, Ge/Si, or other single crystal substrate from triethyl gallium (TEG).  Deposition from TEG allows a lower deposition temperature which provides a low level of substrate contamination and improved surface morphology.
Patent CA-1336321-C (CA)
Title: Methods for prevention and treatment of mucositis with granulocyte colony stimulating factor
Inventor: GABRILOVE JANICE L
IPC: C12P21/02
Filed: 1988-11-18
Granted: 1995-07-18
Abstract: This inventio provides method of preventing mucositis in  a  subject  susceptible  to  mucositis  comprising administering  to  the  subject  a    prophylactically effective  amount  of  granulocyte  colony  stimulating factor   or  a   polypeptide   analog   thereof  having substantially  the  same  amino  acid  sequence  and  the activity  of  naturally  occurring  granulocyte  colony stimulating factor.  This invention further provides a method  of  treating  mucositis  in  a  subject  having mucositis  comprising administering to  the  subject  a therapeutically effective amount of granulocyte colony stimulating  factor  or  a  polypeptide  analog  thereof having substantially the same amino acid sequence and the activity of naturally occurring granulocyte colony stimulating factor.
Patent CA-1277171-C (CA)
Title: Radial upblast exhaust fan apparatus
Inventor: ANDREWS JOHN S
IPC: F23L17/00
Filed: 1988-12-13
Granted: 1990-12-04
Abstract: RADIAL UPBLAST EXHAUST FAN APPARATUS     ABSTRACT OF THE INVENTION     A radial upblast exhaust fan apparatus including a main housing having a fan housing in the lower portion thereof and an upper housing thereabove.  A passive zone is defined between two lateral sections of the upper housing such as to divide the air flow path into two sections.  The passive zone section defines a first inner wall and a second inner wall which cooperate with a first outer wall and a second outer wall defined by the upper housing to provide a first exhaust flow path and a second exhaust flow path.  These walls are shaped as sectors of conical sections preferably and include end walls to isolate the first exhaust flow path from fluid flow communication with respect to the second exhaust flow path.  A fan means is positionable within the fan housing to urge exhaust gases to flow upwardly through the exhaust paths.  The walls of the exhaust flow paths are generally arcuate to facilitate exhaust flow.  A wind band may be secured to the upper end of the exhaust housing adjacent the exhaust openings therein in spaced relation to the outer wall of the upper housing by usage of a wind band bracket.  In this manner mixing of exhaust gases with ambient air is greatly facilitated.  The drive for the fan may be positioned within the passive zone or externally with a belt drive device positioned within the band zone and connected operationally to the drive being externally located.
Patent CA-1298676-C (CA)
Title: Hybrid alphanumeric telephone directory
Inventor: SETO RAYMOND
IPC: H04M1/272
Filed: 1988-12-16
Granted: 1992-04-07
Abstract: ABSTRACT            A hybrid alphanumeric directory comprises a portable notebook containing a plurality of loosely bound pages, each of which has several writing areas where alphanumeric information can be entered.  The writing areas are on each page in the same relative position. When the notebook is placed on the receiving surface of an electronic unit, an arrangement is provided to determine which page is open and this automatically associates the push-buttons with the respective writing areas of the open page.  Data associated with the writing areas are electronically stored.  When a push-button beside a writing area of an open page is depressed, an operation associated with the stored data pertaining to that writing area is automatically initiated.  The directory is particularly useful as a telephone directory, in which case the data are stored telephone numbers.  Depression of one of the push-buttons causes the stored telephone number to be automatically dialed.
Patent CA-1339020-C (CA)
Inventor: TANAKA SABURO
IPC: H01L39/14
Filed: 1988-12-20
Granted: 1997-03-25
Abstract: Improvement in a superconducting thin film of compound oxide  represented  by  the  formula:   LnBa2Cu3O7-?  (Ln  is lanthanide) or (La1-x.alpha.x)2CuO4 (.alpha. is Ba or Sr) deposited on a substrate or core made of MgO, SrTiO3 or ZrO2 by a physical vapour  deposition  technique.    The  present  invention  is characterized in that the surface roughness Rmax (datum length = 1,000µm) of the superconducting thin film is less than 0.2 µm.
Patent CA-1307640-C (CA)
Inventor: KOLLER GREGORY V
IPC: E01C13/00
Filed: 1989-01-13
Granted: 1992-09-22
Abstract: Abstract of the Disclosure A portable cushioned floor system utilizes a modular construction in which each floor module is enclosed with a lower floor plate that protects the flexible resilient cushioning layer during transport and installation and after installation.  The lower floor plate is attached to a floor-supporting upper plate with fasteners that maintain a maximum spacing yet permit full flexibility of the intermediate cushioning layer.
Patent CA-1341588-C (CA)
Title: Human ifn-beta2/i1-6, its purification and use
Inventor: CHEN LOUISE
IPC: A61P31/04
Filed: 1989-01-24
Granted: 2009-01-06
Abstract: Monoclonal antibodies to IFN- beta 2/IL-6 and hybridomas producing them and production and purification of glycosylated and unglycosylated IFN- beta 2/ IL-6 are disclosed. The protein is useful in the treatment of breast cancer, leukemia, infectious diseases and bone marrow progenitor cell disorders.
Patent CA-1326923-C (CA)
Title: Pressure sensitive adhesive composition
Inventor: NISHIKAWA MAKOTO
IPC: C09J153/02
Filed: 1989-02-21
Granted: 1994-02-08
Abstract: PRESSURE SENSITIVE ADHESIVE COMPOSITION                 ABSTRACT OF THE DISCLOSURE         A pressure sensitive adhesive composition is provided which comprises a tri-block copolymer (a) consisting of aromatic vinyl block-conjugated diene block-aromatic vinyl block in which the conjugated diene moiety is hydrogenated and a block copolymer consisting of an aromatic vinyl block and a conjugated diene block in which the conjugated diene moiety is hydrogenated.     The adhesive composition is significantly improved in low temperatures characteristics, adhesion and processability with good adhesion.
Patent CA-1316683-C (CA)
Title: Aqueous surfactant mixtures, and the use thereof in the recovery of crude oil
Inventor: MILLER DENNIS
IPC: C09K23/02
Filed: 1989-03-09
Granted: 1993-04-27
Abstract: ABSTRACT OF THE DISCLOSURE            Aqueous surfactant mixtures, and the use thereof in oil recovery Surfactant mixtures made from 5 to 80% by weight of an ether sulfonate,  5 to 80% by weight of an alkyl or alkylphenol polyglycol ether and 10 to 80% by weight of an  alkanesulfonate,  petroleumsulfonate  or  alkylben-zenesulfonate. This combination of surfactants produces stable,  aqueous  solutions  or  dispersions  which  are highly suitable for surfactant flooding in tertiary oil recovery since these aqueous surfactant solutions or dispersions form microemulsions with the oil even at high salinities.
Patent CA-1323330-C (CA)
Inventor: SATO WASUKE
IPC: B65D17/40
Filed: 1989-04-06
Granted: 1993-10-19
Abstract: ABSTRACT OF THE DISCLOSURE         A lid for a can-like container is disclosed which comprises a gas barrier-type multi-layer base for the lid, a reinforcing thermoplastic resin layer formed on said multi-layer base, and a tab seat of a synthetic resin having a tab and formed on that portion of the upper surface of the bottom surrounded by said reinforcing thermoplastic resin layer.  The tab seat is disposed in spaced relation to said upper surface of the bottom and disposed in such a manner that a score portion having as small a width as possible is formed between the outer periphery of the tab seat and the inner peripheral edge of said reinforcing thermoplastic resin layer.  The upper surface of said bottom is exposed through  the score portion.
Patent CA-1322739-C (CA)
Inventor: KOMASSA ROBERT L
IPC: B65B1/06
Filed: 1989-05-15
Granted: 1993-10-05
Abstract: Abstract of the Disclosure A self-cleaning asbestos collection system comprises a covered hopper, and enclosed housing, and a slide gate valve.  The slide gate valve has a valve gate that is operable between a latched position in sealing contact with the hopper mouth and an unlatched position.  An over center lock in the latching mechanism assures positive latching.  A second mechanism is operable when the valve gate is unlatched to reciprocate the valve gate between positions wherein it covers and uncovers the housing mouth.  The housing has a spout under the hopper mouth.  An asbestos bag is installed over the spout for receiving material flowing through the hopper mouth and the slide gate valve without contaminating the atmosphere.  Water nozzles installed inside the housing make the asbestos collection system self-cleaning.
Patent CA-1306967-C (CA)
Title: Process for the preparation of gamma and delta lactones
Inventor: PAGE GREGORY V
IPC: C12P17/04
Filed: 1989-05-29
Granted: 1992-09-01
Abstract: PROCESS FOR THE PREPARATION OF GAMMA AND DELTA LACTONES                 ABSTRACT OF THE INVENTION            A process for the preparation of gamma and delta lactones from organic carboxylic acids or derivatives thereof is disclosed.  The process comprises culti-vating, under aerobic conditions, a fungus of the genus Mucor in a suitable medium containing the carboxylic acid or a derivative thereof.
Patent CA-1297451-C (CA)
Title: Screw strip with washers
Inventor: HABERMEHL GORDON L
IPC: F16B43/00
Filed: 1989-06-15
Granted: 1992-03-17
Abstract: ABSTRACT OF THE DISCLOSURE         A screw strip is disclosed in which each screw carries a washer on its screw shank between the tip of the screw and a plastic strip carrying a plurality of screws.          This configuration permits application of screws carrying the washers by power tools as is particularly useful in sheet metal applications.
Patent CA-1338069-C (CA)
Inventor: BABIUK LORNE A
IPC: G01N33/68
Filed: 1989-06-28
Granted: 1996-02-20
Abstract: Subunit vaccines against bovine herpesvirus type 1 are provided, as well as methods of vaccination and methods of making the subunit antigen employed in the vac-cines.