baber/WOPTO huggingface dataset:
Patent CA-1280532-C (CA)
Inventor: FELDMAN MARTIN L
IPC: C08F14/00
Filed: 1975-06-23
Granted: 1991-02-19
Abstract: ABSTRACT     The invention relates to a novel process for the production of polyvinyl chloride having a low vinyl chloride monomer content, the latter being removed from a slurry or latex which result from polymerization of vinyl chloride in aqueous media.  In the novel process vinyl chloride is removed from a slurry or latex that contains from about 1000 parts to 15,000 parts by weight of vinyl chloride per million parts by weight of the slurry or latex and from 5% to 50% by weight of a polymer selected from the group consisting of polyvinyl chloride and copolymers of vinyl chloride with at least one mono-mer copolymerizable therewith that comprises a) heating said slurry or latex at a temperature in the range of 70°C. to 125°C.or contacting the slurry or latex with at least one organic liquid at a temperature in the range of 25°C. to 125°C.and b) removing vinyl chloride vapor from the slurry or latex. The resultant aqueous slurry or latex and final polymer product has reduced carcinogenicity.
Patent CA-1284152-C (CA)
Inventor: LADKANI DAVID
IPC: C07C69/96
Filed: 1983-11-14
Granted: 1991-05-14
Abstract: A B S T R A C T     1'-Ethoxycarbonyloxyethyl ester of di-n-propylacetic acid, also known as valproic acid. The novel compound is prepared by reacting valproic acid with 1-haloethyl ethyl carbonate. There are also provided pharmaceutical compositions for oral administration containing the said ester.
Patent CA-1302820-C (CA)
Title: Bone fracture fixation plates
Inventor: SPECTOR MYRON
IPC: A61B17/58
Filed: 1985-01-11
Granted: 1992-06-09
Abstract: ABSTRACT                 SUMMARY       Improvements in or relating to bone fracture  fixation plates A bone fracture fixation device which is substantially free from resorbable components and is capable in use of a gradual decrease in rigidity over the fracture healing period from a rigidity close to or in excess of that of the intact bone to a rigidity significantly below that of the intact bone.
Patent CA-1284000-C (CA)
Title: Process for recovering glucagon from pancreas glands
Inventor: MASKALICK DAVID G
IPC: C07K14/605
Filed: 1986-06-23
Granted: 1991-05-07
Abstract: Abstract There is provided a process for the purifi-cation of glucagon from a glucagon salt cake containing pancreas gland-sourced glucagon, which comprises (1)  dissolving said glucagon salt cake in an aqueous medium containing a water-miscible organic solvent; (2)  contacting the glucagon salt cake solution with a hydrophobic adsorption support at a pH less than about 4 or greater than about 7.5 and at conditions under which the glucagon is adsorbed on said hydrophobic adsorption support; (3)  eluting glucagon from said hydrophobic adsorp-tion support with an aqueous solution contain-ing a water-miscible organic solvent to obtain a first glucagon-containing solution; (4)  contacting a solution containing glucagon eluted from said hydrophobic adsorption support, said solution having a pH of from about 7.5 to about 10.5, with an anion exchange support at conditions under which the glucagon is adsorbed on said anion exchange support; (5)  eluting glucagon from said anion exchange support to obtain a second glucagon-contain-ing solution; and (6)  recovering glucagon having increased purity.
Patent CA-1300926-C (CA)
Title: Rupture testing method for boiler tubes
Inventor: KRAWCHUK MYRON
IPC: G01N3/08
Filed: 1987-03-17
Granted: 1992-05-19
Abstract: RUPTURE TESTING METHOD FOR BOILER TUBES                Abstract of Disclosure Disclosed is a method of determining the remaining creep life of metallic boiler tubes which comprises the steps of selecting a section of the boiler tube to be tested, inserting two segments into the tube section, which segments together form a disc having an outside diameter slightly less than the inside diameter of the tube section; exerting two oppositely directed forces on the segments to separate the segments against the wall of the tube section, the forces being selected to simulate the hoop stress applied to the tube section due to internal pressure; and maintaining the application of the oppositely directed forces until the tube section ruptures, wherein the steps are performed at a temperature above the normal service temperature of the tube and the remaining life of the tube is estimated by comparing the time to rupture with predetermined data based on the normal service temperature.
Patent CA-1313036-C (CA)
Title: Conductive fabric and a conductive sheet and film
Inventor: WAKAHARA HIDEKI
IPC: D04B1/14
Filed: 1987-04-23
Granted: 1993-01-26
Abstract: ABSTRACT OF THE DISCLOSURE         A conductive fabric is disclosed which comprises conductive fibers and thermoplastic fibers with a higher heat shrinkage than that of the conductive fibers.   The conductive fibers are crimped by heat shrinkage of the thermoplastic fibers.  A conductive sheet or film is also disclosed comprising the conductive fabric and a base on which the conductive fabric is disposed, the conductive fabric and the base are laminated together and fused into one piece by being heated at a temperature above the melting point of the thermoplastic fibers to melt the thermoplastic fibers.
Patent CA-1295219-C (CA)
Inventor: PETTY-WEEKS SANDRA L
IPC: G01N31/10
Filed: 1987-04-27
Granted: 1992-02-04
Abstract: "METHOD AND APPARATUS FOR DETECTING        HYDROGEN-CONTAINING HYDROGEN-POSITIVE GASES"     Apparatus and method for detecting and measuring hydrogen and gaseous compounds capable of dissociating into or comblning with hydrogen ions using a novel solid electrolyte membrane which comprises a three-component blend prepared by admixing an organic polymer or copolymer, such as poly(vinyl alcohol), with an inorganic compound, such as a phosphoric acid, and an organic compound selected from a group of polymers and copolymers having monomer units contalnlng nitrogen, oxygen, or sulfur atoms, such as poly(vinyl pyrrolidone).
Patent CA-1299128-C (CA)
Title: Method of producing l-cystine
Inventor: MIYAHARA SHYOICHIRO
IPC: C07C323/58
Filed: 1987-05-06
Granted: 1992-04-21
Abstract: ABSTRACT OF THE DISCLOSURE       L-Serine is reacted with hydrogen sulfide or an alkali metal sulfide or hydrosulfide in the presence of an enzyme to form L-cysteine and the L-cysteine is oxidized to produce L-cystine.   Their reaction is carried out in the presence of dimethyl sulfoxide, which is employed as an oxidizing agent, so that the L-cysteine which is formed by the enzyme reaction may be successively converted to L-cystine in the reaction system.
Patent CA-1308909-C (CA)
Title: Hydroponic culture system
Inventor: AKAGI SHIZUKA
IPC: A01G31/00
Filed: 1987-05-13
Granted: 1992-10-20
Abstract: Abstract A hydroponic culture system comprising an angle panel having a plurality of holes for supporting plants with roots projecting through the holes, and a hydroponic solution feeding means comprising a hydroponic solution spraying means for supplying a hydroponic solution onto the roots of the plants and a hydroponic solution pumping means for supplying the hydroponic solution to the hydroponic solution spraying means, in which the hydroponic solution spraying mechanism is movable along the longitudinal direction of the angle panel, or the angle panel is disposed in a plant cultivation structure which is supplied with carbon dioxide through a duct for controlling the environment within the structure, or a plurality of angle panels are disposed in a plurality of rows and top edges of the adjacent angle panel rows are connected with canopies to form substantially triangular-sectioned spaces between the adjacent angle panel rows for enhanced lighting efficiency, thereby cultivating the plants systematically and almost uniformly with improved cultivation efficiency and economy.
Patent CA-1283748-C (CA)
Title: Vinylamine copolymer, flocculating agent and paper strength increasingagent using the same, as well as process for producing the same
Inventor: ITAGAKI TAKAHARU
IPC: C08F8/44
Filed: 1987-06-23
Granted: 1991-04-30
Abstract: ABSTRACT OF THE DISCLOSURE          Disclosed herein is a vinylamine copolymer having the structural units represented by the following formulas (I), (II), (III), (IV) and (V):                 -    [ I ]                         -    [ II ]                         -    [ III ]                         -    [ IV ]                         -    [ V ]   wherein X? represents an anion or hydroxyl ion, R represents a hydrogen atom or a methyl group, M? represents a hydrogen ion or a monovalent cation, in which the molar fraction of the structural unit (I) is 5 to 85% by mole, the molar fraction of the structural unit (II) is 2 to 85% by mole, the molar fraction of the structural unit (III) is 5 to 80% by mole, the molar fraction of the structural unit (IV) is 2 to 40% by mole, and the molar fraction of the structural unit (V) is 0 to 8% by mole based on the total content of the structural units (III), (IV) and (V), a flocculating agent and a paper strength increasing agent using the vinylamine copolymer, and a process for producing the vinylamine copolymer.
Patent CA-1324718-C (CA)
Inventor: PICHETTE CAROLD
IPC: E04B1/76
Filed: 1987-07-06
Granted: 1993-11-30
Abstract: Elongate structural element made from laminated metal and intended to be used as a component of a wall frame determining a cavity for receiving insulating panels made of glass fibres of the type having easily separable layers, the said element (12) forming a U shape in cross-section defining a web (18) and two flanges (20) connecting the said web and having a width at least one quarter of that of the said web, the said element being employed as a post, the said post having sections cut out from the said web, which sections are longitudinally spaced apart and each one defining an elongate branch (36, 38) ending in a free point (46) and having free longitudinal edges and an internal end integral with the said web in a line of flexure (42), the said branch being able to flex between a non-operative position coplanar with the said web and an operative position generally orthogonal to the said web so as to engage and to retain an insulating panel, the said branch, when it is in its operative position, being inclined downwards and transversely towards one of the said flanges, and at least one of the said longitudinal edges being inclined relatively to the plane of the said web. <IMAGE>
Patent CA-1295473-C (CA)
Title: Low and high temperature drilling fluids based on sulfonated terpolymer ionomers
Inventor: PEIFFER DENNIS G
IPC: C09K8/32
Filed: 1987-08-28
Granted: 1992-02-11
Abstract: ABSTRACT OF THE DISCLOSURE     The present invention relates to sulfonated thermoplastic terpolymers which are terpolymers of p-methyl styrene, styrene and sodium styrene sulfonate wherein these sulfonated terpolymers function as vis-cosification agents when added to oil-based drilling muds which are the fluids used to maintain pressure, cool drill bits and lift cuttings from the holes in the drilling operation for oil an gas wells.  The sulfo-nated thermoplastic terpolymer of the latex have about 5 to about 100 meq. of sulfonate groups per 100 grams of the  sulfonated thermoplastic terpolymer, wherein the sulfonated groups are neutralized with a metallic cation or an amine or ammonium counterion.  A polar cosolvent can optionally be added to the mixture of oil drilling mud and sulfonated thermoplastic polymer, wherein the polar cosolvent increases the solubility of the sulfonated thermoplastic terpolymer in the oil drilling mud by decreasing the strong ionic interac-tions between the sulfonate groups of the sulfonated polymer.            The drilling muds formed from these lattices of the sulfonated thermoplastic terpolymers exhibits markedly improved low and high temperature rheological properties as compared to drilling muds formed from sulfonated thermoplastic copolymers.
Patent CA-1288205-C (CA)
Title: Quick release wand for canister vacuum cleaner
Inventor: MARTIN WILLIAM J
IPC: A47L9/24
Filed: 1987-10-19
Granted: 1991-09-03
Abstract: "QUICK RELEASE WAND FOR CANISTER VACUUM CLEANER" ABSTRACT OF THE DISCLOSURE         A vacuum cleaner having a wheeled nozzle with a two-piece wand defining a lower end connected to a swivel connector portion of the nozzle.  Guide structure is provided for accurately aligning cooperating male and female terminals on the wand and swivel connector of the nozzle for facili-tated connection therebetween when the lower end of the wand is connected to the swivel connector for providing a suction connection from an associated canister to the nozzle.  A foot pedal-operated lever is provided for releasing a latch retain-ing the lower end of the wand to the swivel connector when desired. A connector connects the upper end of the lower portion of the wand to the lower end of the upper portion thereof by a rotatable connection to permit limited rotation of the upper portion of the wand about the axis of the wand for selective disposition of the handle connected to the upper end of the upper portion of the wand.  The guide struc-ture guides the latch carried by the lower end of the wand into aligned association with a latch opening in the swivel connector.
Patent CA-1322004-C (CA)
Title: Pyridyl styrene dialkanoic acids
Inventor: YOUNG ROBERT N
IPC: C07D213/70
Filed: 1987-11-25
Granted: 1993-09-07
Abstract: F/l TITLE OF THE INVENTION PYRIDYL STYRENE DIALKANOIC ACIDS            ABSTRACT OF THE DISCLOSURE        Compounds having the formula:                                             I are leukotriene antagonists and inhibitors of leukotriene biosynthesis.  These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents.
Patent CA-1290792-C (CA)
Title: Electromagnetic contactor with current regulated electromagnetic coil for holding the contacts closed
Inventor: SALETTA GARY F
IPC: H01H47/00
Filed: 1988-02-05
Granted: 1991-10-15
Abstract: 53,662 ABSTRACT OF THE DISCLOSURE         An  electromagnetic  contactor  is  taught  which includes  a  conduction angle controlled triac or similar gated device which is connected in series circuit relation-ship with the winding of an electromagnetic solenoid or coil which is responsible for closing the contactor con-tacts  and for keeping them closed.  The current flowing through the triac is fed to a microprocessor which digitiz-es the current and compares it to a stored standard.  The conduction angle  is  then decremented or  incremented  as necessary to change the conduction angle to cause less or more current to flow per half cycle until the amount of current  flowing as  sensed on a half-cycle-by-half-cycle basis is equal to the current represented by the stored standard.
Patent CA-1312053-C (CA)
Title: Service vehicle with dispensing system
Inventor: VLAANDEREN JAMES
IPC: B67D99/00
Filed: 1988-03-16
Granted: 1992-12-29
Abstract: Abstract A service vehicle  includes  a  frame  10  on which  a material  dispensing  system  is  mounted.   The  dispensing system includes reservoirs 30, 32 and 34 for various lubri-cants or the like and pumps 46 for pumping material out of the associated reservoirs 30, 32 and 34.  The pumps 46 are driven by hydraulic motors 50 which may receive hydraulic fluid under pressure through electrically operated control valves 76 from a pressure compensated, variable displacement pump 60 driven by the engine 64 for the vehicle.  The use of the  pressure  compensated  variable  displacement  pump  60 achieves operating efficiencies.
Patent CA-1322638-C (CA)
Title: Method and apparatus for replacing sidewall of tire
Inventor: KING MICHAEL J
IPC: B29D30/72
Filed: 1988-03-22
Granted: 1993-10-05
Abstract: Abstract of Disclosure A  method  and  apparatus  for   installing  sidewall replacement members on a used tire carcass by attaching sidewall   members  to  the pre-buffed  and cement coated sidewalls  of  the  tire  carcass,  covering  each  sidewall member with a flexible sidewall mold, placing a flexible curing envelope around said   tire carcass including the sidewall molds and  sealing the envelope in the bead area of the tire carcass. The envelope covered tire carcass is then  placed  in  a  curing  chamber  at  a  preselected temperature and pressures for time period sufficient to cure  said sidewall members and bond  them on said tire carcass.  The  sidewall  members  can  be  installed  in conjunction with the installation of tread rubber on the tire.
Patent CA-1325261-C (CA)
Title: Automatic, real-time fault monitor verifying network in a microwave landing system
Inventor: ROELOFS DARRELL D
IPC: G01S1/56
Filed: 1988-04-21
Granted: 1993-12-14
Abstract: ABSTRACT OF THE DISCLOSURE         The fault monitoring function of an executive monitor contained in a microwave landing system is veri-fied by evaluating a history of the parametric informa-tion sampled by an executive monitor and storing in memory the number of out of tolerance parametric signals received from an antenna means over a predetermined time period, replacing the stored number of out-of-tolerance parametric signals with a predetermined number that will be beyond a second predetermined limit if another out-of-tolerance parametric signal is added to said number, adding one such internally generated out-of-tolerance parametric signal to said predetermined number, generat-ing an alarm if said sum is beyond the second predeter-mined limit, and restoring the previously stored number of out-of-tolerance parametric signals received from the antenna means if the alarm was generated, and shutting the system down if an alarm was not generated.
Patent CA-1332288-C (CA)
Inventor: SCHEIWILLER ROLF
IPC: E02D29/02
Filed: 1988-07-15
Granted: 1994-10-11
Abstract: ABSTRACT       The kit comprises a trough stone provided at its sides with alternating dovetail grooves and dovetail keys. Grooves are provided at its upper side in the center of the dovetail parts for receiving sound deadening plates. These troughs which are capable to be provided with plants may be either directly connected together or by means of column stones comprising as well at all of their sides a dovetail part and a groove over it. The column stone further comprises an opening in its center for receiving a hinge bolt. The kit further comprises other elements like connecting elements, ground elements and sound deade-ning plates. The kit permits the erection of a plurality of walls of all kinds, i.e. sound deadening walls capable to be provided with plants and also buildings of riverbeds or windbreaker walls. The denticulation by means of the dovetail connecting parts permits a full dry construction.
Patent CA-1315779-C (CA)
Title: Aristeromycin/adenosine derivatives
Inventor: JARVI ESA T
IPC: C07H19/16
Filed: 1988-08-22
Granted: 1993-04-06
Abstract: ABSTRACT This invention relates to an aristeromycin/adenosine derivative of the formula wherein V is oxy or methylene, X1 and X2 are each independently hydrogen or halogen with the proviso that at least one of X1 and X2 is always a halogen atom, A1 and A2 are each independently hydrogen, halogen, or hydroxy with the provisos that where A1 is hydroxy, A2 is hydrogen, and that where A2 is hydroxy, A1 is hydrogen, Y1 is nitrogen, a CH group, a CCl group, a CBr group or a CNH2 group, Y2 and Y3 are each independently nitrogen or a CH group, Q is NH2, NHOH, NHCH3, or hydrogen, and Z is hydrogen, halogen, or NH2; or a pharmaceutically acceptable salt thereof, which are useful in inhibiting AdoMet-dependent transmethylation and in the treatment of patients afflicted with neoplastic or viral disease states.
Patent CA-1332960-C (CA)
Inventor: AIKO KENICHI
IPC: F42B3/11
Filed: 1988-09-29
Granted: 1994-11-08
Abstract: An electronic delayed detonator is disclosed which comprises a seal cap with an open end having a conductor inserted thereinto, a tubular member in cylindrical form tapered toward the bottom thereof and hermetically containing electric ignition means, and a primer charge at the bottom thereof, and an electronic delayed ignition circuit assembly of a sequential series arrangement including an electronic delay circuit board electrically connected with leg wires of the ignition device on the open side thereof and an energy storage capacitor.  The assembly is sealed in a casing formed of a hard plastic material having mechanical properties including an elasticity modulus of 0.5 x 104 to 3.0 x 104 kg/cm2 and a bending strength of 20 to 2000 kg/cm2 and is closely covered with a film on the outer periphery thereof to make up a module.
Patent CA-1325470-C (CA)
Title: Downhole orbital seismic source
Inventor: COLE JACK H
IPC: G01V1/153
Filed: 1988-10-27
Granted: 1993-12-21
Abstract: Abstract of the Disclosure Apparatus  for  simultaneously  generating  elliptically polarized seismic shear waves and compression waves downhole for  coupling  energy  through  the fluid into  the borehole wall. The apparatus includes an elongate frame for support in the borehole and the frame includes a drive means energi-zable to impart an orbital motion to at least a portion of the frame thereby to generate an orbital shear wave.
Patent CA-1322364-C (CA)
Inventor: OKADA OSAMU
IPC: B01D53/50
Filed: 1988-11-04
Granted: 1993-09-21
Abstract: PROCESS FOR PRODUCING A DESULFURIZATION AGENT            ABSTRACT OF THE DISCLOSURE:          The present invention provides (1) a process for producing a desulfurization agent which comprises subjecting to hydrogen reduction a copper oxide-zinc oxide mixture prepared by co-precipitation process using a copper compound and a zinc compound; and 12) a process for producing a high temperature-resistant, high grade desulfurization agent which comprises subjecting to hydrogen reduction a copper oxide-zinc oxide-aluminum oxide mixture prepared by a co-precipitation process using a copper compound, a zinc compound and an aluminum compound.
Patent CA-1309507-C (CA)
Title: System for management of the priorities of access to a memory and its application
Inventor: CALLEMYN JEAN-MICHEL
IPC: G06F13/18
Filed: 1988-12-20
Granted: 1992-10-27
Abstract: PHF 87.609                              09-12-198 ABSTRACT "SYSTEM FOR MANAGEMENT OF THE PRIORITIES OF ACCESS TO A                MEMORY AND ITS APPLICATION"         The management of the priorities of access to a memory is characterized in that each request generator module (DP,GP) separately formulates the requests for access to a single word (DPREQ1, GPREQ1) and the requests for access to a plurality of words (DPREQN, GPREQN); differing priorities (REGA, REGB, REGC, REGD) may then be allocated (VALREG) to each type of request.        Advantageously the requests for a single word are arbitrated by a first module which transmits a selected request to a second module.        Reference: Figure 1a.
Patent CA-1331815-C (CA)
Title: Polymer compositions
Inventor: BUSH STEPHEN F
IPC: C08L67/06
Filed: 1988-12-23
Granted: 1994-08-30
Abstract: ABSTRACT      Polymer   compositions   useful    for    moulding comprise  a  cross-linkable  base resin, an unsaturated monomer in which the base  resin  is  disolved  and saturated   additive   resin   which   by   itself   is crystalline  at  ambient  temperatures  with  a melting point (Tm) below that temperature  (Tc)  at  which  the base   resin  cross-linking  reaction  is designed  to proceed at a significant  rate.    The  composition  is such  that on  cooling  from  a temperature between Tm and Tc, to a temperature between  Tm  and  ambient  the additive    resin   forms  distributed  microcrystalline domaine connected severally by chains of  the  additive resin  threading  through the base resin chains.   This producees   a   thicking   network   which   may  be reversibly broken down to the original  additive   resin molecules  by  heating  to a temperature below Tc.  The additive resin molecules swell the permanent base resin network created by the said cross-linking reaction which occurs during moulding, and thereby providing resistance to post-moulding shrinkage.