baber/WOPTO huggingface dataset:
Patent CA-1277666-C (CA)
Title: Asymmetrical alkyl diphenylakylaminoalkyl esters of l, 4-dihydro-2,6-dimethylpyridine-3,5-dicarboxylic acid
Inventor: NARDI DANTE
IPC: C07D413/04
Filed: 1985-02-11
Granted: 1990-12-11
Abstract: ABSTRACT   Novel antihypertensive and coronary dilating asymmetsic diesters of 1,4-dihydro-2,6-dimethyl-pyridine-3,5-dicarboxylic acid (or the stereoisomers or pharmaceutically acceptable acid addition salts thereof) have the general formula (I):                                    (I) wherein Ph is phenyl, Ar is 2-nitrophenyl, 3-nitrophenyl, 2,3-dichlorophenyl or benzofurazan-4-yl, A is a straight or branched chain alkylene radical having from 2 to 6 carbon atoms, R is a straight or branched chain alkyl radical having from 1 to 6 carbon atoms, optionally mono-substituted by an alkoxy substituent having from 1 to 6 carbon atoms, R1 is hydrogen, hydroxy or an alkyl radical having from 1 to b carbon atoms, and R2 is hydrogen or methyl. The subject diesters may be prepared from the aldehydes ArCHO and esters of acetoacetic and 3-aminocrotonic acids.
Patent CA-1259315-C (CA)
IPC: C07D409/14
Filed: 1985-05-31
Granted: 1989-09-12
Abstract: Novel 1-cyclopropyl-4-fluoro-1,4-dihydro-4-oxo-7-(1-piperazinyl)-3-quinoline carboxylic acid antibacterials of the formula   <IMAGE>   in which R1 is hydrogen, alkyl with 1 to 4 carbon atoms and optionally substituted by hydroxyl, methoxy, amino, dimethylamino, halogen, cyano or alkoxycarbonyl having 1 or 2 carbon atoms in the alkyl moiety, or is oxoalkyl having up to 4 carbon atoms, phenacyl, or acyl having 1 to 4 carbon atoms, phenacyl, or acyl having 1 to 4 carbon atoms, R2 is phenyl or cyclohexyl optionally substituted up to three times by halogen, methyl, phenyl, cyano, hydroxyl, methoxy, benzyloxy, amino, methylamino, dimethylamino, piperidino or nitro, or is methylenedioxyphenyl, methylenedioxycyclohexyl, furyl, tetrahydrofuryl or thienyl, and X1 is hydrogen or fluorine, or pharmaceutically ultizable hydrates, acid addition salts, alkali metal salts or alkaline earth metal salts thereof.
Patent CA-1266525-C (CA)
Title: Information display scheme for subscribers of a subscription television system
Inventor: LUCAS KEITH
IPC: H04H60/21
Filed: 1985-09-19
Granted: 1990-03-06
Abstract: ABSTRACT An information display scheme for displaying subscriber unique information to subscribers of a subscription communications system. The system comprises template page receiving means coupled to the communications system for receiving a template page as a format for the subscriber unique infromation, storage means coupled to the tem-plate page receiving means for storing the template page and logic means coupled to the communications system and to the storage means for locally generating and maintaining at least some of the subscriber unique information. The logic means combines the subscriber unique information with the template page for display to the subscriber.
Patent CA-1280867-C (CA)
Inventor: PARK HEE C
IPC: B29C59/08
Filed: 1985-10-28
Granted: 1991-03-05
Abstract: NON-BLOCKING OPAQUE FILM                      ABSTRACT OF THE DISCLOSURE        The invention involves a method of preventing film-to-film blocking of a biaxially oriented polypropylene film which has been surface treated to enhance its wettability comprising including in the film prior to the surface treatment sufficient talc to prevent blocking.  TiO2 can also be included in the surface film to impart paper-like characteristics thereto.
Patent CA-1262878-C (CA)
Title: Process to recover crystalline enzymes and crystalline enzymes produced thereby
Inventor: BREWER JACK WILLIAM
IPC: C12N9/28
Filed: 1986-01-31
Granted: 1989-11-14
Abstract: ABSTRACT This invention relates to a novel process for the recovery of enzyme crystals. The enzymes may be obtained from any enzyme-producing microorganisms such as bacteria, fungi, and yeasts. The invention contemplates supersaturation and/or crystallization to obtain enzymes in the crystalline form, and is particularly effective for the recovery of heat stable alpha-amylase in a crystal form.
Patent CA-1339305-C (CA)
Title: Production of human somatomedin c
Inventor: BUELL GARY N
IPC: C07K19/00
Filed: 1986-03-21
Granted: 1997-08-19
Abstract: A process for selecting DNA sequences that are optimal for the production of polypeptides in hosts transformed with those DNA sequences.  These DNA sequences, which code for a variety of human and animal proteins, permit the high level expression of those products in host cells.  In the preferred embodiment of this invention, DNA sequences optimal for the production of human somatomedin C are selected and employed to express that growth enhancing factor.
Patent CA-1293897-C (CA)
Title: Peritoneal dialysis catheter
Inventor: TWARDOWSKI ZBYLUT J
IPC: A61M5/00
Filed: 1986-05-01
Granted: 1992-01-07
Abstract: PERITONEAL DIALYSIS CATHETER   ABSTRACT          A peritoneal catheter comprises a flexible catheter tube carrying porous cuff means to facilitate permanent securance of the catheter to the abdominal wall.  The catheter tube defines, in its natural, unstressed condition, a bent segment adjacent the porous cuff means.  This permits the catheter to be mounted in a tunnel formed through the abdominal wall in relatively unstressed configuration, with both ends pointing downwardly toward the feet of the patient.  In one embodiment, the catheter includes a flange extending circumferentially outwardly of the catheter tube adjacent to the porous cuff means.  The flange extends at a nonperpendicular angle relative to the axis of the catheter tube, and the slope of the flange extends transverse the direction of the bent segment. The angled flange, when sutured to the posterior rectus sheath, maintains the catheter tube in the desired tunnel direction within the abdominal wall, with the distal end of the catheter tube pointed properly downwardly toward the pelvic cavity.
Patent CA-1267595-C (CA)
Title: Test strips and process for the production of test strips
Inventor: ENGELMANN HELMUT
IPC: G01N33/50
Filed: 1986-05-15
Granted: 1990-04-10
Abstract: ABSTRACT Test devices and a process for making the test devices are disclosed in which reagent matrix areas attached to substrate are protected axially in the direction of the elongated substrate by a surface(s) adjacent to and in close proximity to each matrix area extending to at least the identical height of the matrix material. The resulting surface(s) protects said matrices from damage, particularly during wiping operations in which excess liquid and/or material is removed from the matrices. MS-1368
Patent CA-1287556-C (CA)
Title: Procedure for fabricating devices involving dry etching
Inventor: SCHUTZ RONALD J
IPC: H01L21/308
Filed: 1986-06-23
Granted: 1991-08-13
Abstract: PROCEDURE FOR FABRICATING DEVICES      INVOLVING DRY ETCHING            Abstract The present invention relates to a process for fabricating a device comprising the steps of forming a resist mask on a substrate, etching the substrate to form a plurality of etch pits defining a plurality of features by inducing reaction of the substrate with energetic species and completing the device.  The redeposition of material on the side walls of the etch pit ocours during the etching.  The process includes at least one step chosen from the group of steps consisting of, 1) locally compensating for the effect of the redeposition on the conformation of the sidewall, 2) when the redeposition material presents a barrier to isotropic etching in the sukstrate, contacting the etching species with the resist mask so that the angle formed between a) a tangent to the resist mask at the point the resist mask intercepts the substrate and (b) a perpendicular to the substrate at the point is less than arctan (X/Y), where X is the horizontal rate of the redeposition at the point and Y is the etchant rate of the substrate, and (3) limiting, when the redeposited material presents a barrier to isotropic etching in the subatrate, the contact angle between the momentum direction of the etchant species and a tangent to the redeposition material at all points on the resistant redeposition material serving to mask the sidewalls so that the contact angle is less than arctan (X/Z), where X is as defined in step 2), where Z is the etchant rate of the redeposited material in a direction parallel to the etchant species momentum direction.
Patent CA-1278321-C (CA)
Title: Anti-blowout seal
Inventor: FOURNIER PAUL J E
IPC: F16L37/35
Filed: 1986-07-08
Granted: 1990-12-27
Abstract: ABSTRACT OF THE DISCLOSURE     An annular fluid seal for pressurized fluid systems particularly for use with a coupling having interconnect-able self-sealing male and female parts.  The two-part seal is mounted within an annular gland recess within the male part and includes a relatively rigid primary annular body of synthetic plastic material having an interference fit with the male coupling part poppet valve.  The outer diameter of the seal body includes an annular recess receiving an elastomeric O-ring, and the mass of the primary seal body provides maximum strength within the confines of the gland recess to resist defor-mation due to pressurized fluid to prevent blowout of the seal from its recess.
Patent CA-1295564-C (CA)
Title: Recombinant plasmid inserted with herpes simplex virus gene
Inventor: NOZAKI CHIKATERU
IPC: A61K39/245
Filed: 1986-08-26
Granted: 1992-02-11
Abstract: Abstract:        The invention provides a recombinant plasmid inserted with a herpes simplex virus gene.  The plasmid comprises a plasmid vector containing a yeast gene and an Escherichia coli gene and carries a promoter region and a herpes simplex virus gB gene (HSVgB gene) recombined therewith under control of the promoter.  The HSVgB gene omits a part of the N-terminal coding region of the gene includ-ing the signal sequence-encoding region and optionally a further region downstream therefrom, e.g. a gB gene omitting a gene encoding the N-terminal 30 amino acids, and a gB gene omitting a gene encoding the N-terminal 83 amino acids.  The recombinant plasmid is useful for the production of a transformed yeast, which is useful for the production of HSVgB proteins suitable for the production of HSV vaccine and diagnostic reagents for herpes simplex virus infections.
Patent CA-1275614-C (CA)
Title: Diffusion sample collector for gaseous media
Inventor: PANNWITZ KARL-HEINZ
IPC: G01N31/22
Filed: 1986-09-04
Granted: 1990-10-30
Abstract: ABSTRACT         A diffusion sample collector for gaseous media, comprising a transparent container open at both ends, a non-permeable wall between the ends dividing the container into two compartments, each compartment communicating with a separate open end, a collecting layer of material in one compartment and an indicating layer of material in the other compartment.  The collector may further comprise permeable retaining elements at the open ends.  The indicating layer makes it possible to detect hazardous substances in the surrounding air during the sample collection.  In this manner an unnecessary analysis of the collecting layer may be avoided and gas eruptions can be noticed immediately.
Patent CA-1330961-C (CA)
Title: Auto-anti-idiotypic monoclonal antibodies to steroid receptors and uses thereof
Inventor: EDELMAN ISIDORE S
IPC: C07K16/00
Filed: 1986-09-09
Granted: 1994-07-26
Abstract: AUTO-ANTI-IDIOTYPIC MONOCLONAL ANTIBODIES TO RECEPTORS AND USES THEREOF            Abstract of the Disclosure A competitive immunoassay for a steroid receptor has been developed in which monoclonal antibodies capable of binding to the steroid receptor are competitively bound by anti-steroid antibodies capable of binding to the steroid. The presence or amount of monoclonal antibody-anti-steroid antibody complex formed is related to the amount of steroid receptor present in the assayed material. A histochemical assay is also provided for detecting the amount of a steroid-receptor complex in a biological sample. This assay involved (1) adding an amount of steroid to the sample to form a steroid-receptor complex; (2) contacting the complex with a monoclonal antibody capable of binding to the complex; (3) removing any unbound monoclonal antibody; (4) adding a detectably labeled antibody capable of binding to the monoclonal antibody; (5) determining the amount of labeled antibody bound to the monoclonal antibody; and (6) determining the amount of steroid-receptor complex. The invention further provides a method of purifying receptors to a steroid hormone using monoclonal antibodies capable of binding to the receptor, and a method for producing a monoclonal anti-idiotypic antibody capable of binding to a steroid receptor.
Patent CA-1280616-C (CA)
Title: Automatic machine for preparing espresso coffee
Inventor: PIANA GIUSEPPE S
IPC: A47J31/30
Filed: 1986-09-10
Granted: 1991-02-26
Abstract: A B S T R A C T          Automatic machine for preparing espresso coffee The machine includes a motor-driven conveyor screw provided in a supply duct connecting the coffee grinder to a percolation chamber to move the ground coffee at a rate  higher  than that of its supply from the coffee grinder. Preferably  the  percolation  chamber  has  an associate prechamber into which the supply duct opens. Means for closing  the  percolation  chamber  and  compressing the charge of coffee comprise a tamper which is reciproca-ble between a withdrawn position in which it does not occupy the prechamber and closes its side opposite the percolation  chamber  and an advanced position of com-pressing  the  charge  in  the  chamber  and  sealing  the chamber.  The percolation chamber is a through-chamber with  open ends,  one  being  a  continuation  of  the through-chamber and the other, as part of the means for closing  the      chamber,  being  associated  with  a counter-tamper     obturator movable towards  and  away from an advanced position in which it closes the other end both  to  allow the  compression of  the charge of ground coffee in the chamber by means of the tamper and to seal the chamber. The tamper is movable to an even further advanced position beyond the said other end of the chamber to expel the compressed coffee. (Figure 4)
Patent CA-1280433-C (CA)
Title: Fluoran derivatives, process for preparation thereof and recording material containing the same
Inventor: KITAO TEIJIRO
IPC: B41M5/327
Filed: 1986-09-22
Granted: 1991-02-19
Abstract: FLUORAN DERIVATIVES, PROCESS FOR PREPARATION THEREOF AND RECORDING MATERIAL CONTAINING THE SAME     ABSTRACT OF THE DISCLOSURE     A fluoran derivative useful for a heat-sensitive recording material, having the following general formula I;                               ...I wherein R1 and R2, which may be the same or different, stand for an alkyl group having 1 to 9 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, a phenyl group or a phenyl group substituted by an alkyl group having 1 to 4 carbon atoms, and R3 and R4 , which may be the same or different, stand for an alkyl group having 1 to 6 carbon atoms or a phenyl group or R3 and R4 may form a 5- to 8-membered cycloalkane together with the carbon atom to which they are bonded.
Patent CA-1275454-C (CA)
Title: Method and apparatus for connecting a hollow member to an inner member
Inventor: URECH WERNER
IPC: B23K11/06
Filed: 1986-12-18
Granted: 1990-10-23
Abstract: ABSTRACT OF THE DISCLOSURE:           Method and apparatus for connecting a hollow member to an inner member.  For connecting a round hollow member of sheet metal tightly to a complementary inner member, a force fit is produced in a narrow annular region between these two members.  Then at least two electrodes are applied to the hollow member from the outside in the annular region and during relative rotation between the electrodes on the one hand and the two members on the other hand, electrical resistance welding is carried out during which the welding current is supplied and drawn off exclusively through the electrodes bearing externally against the hollow member.
Patent CA-1286879-C (CA)
Title: Dry-shaving apparatus
Inventor: BERGSMA WIJTSE
IPC: B26B19/38
Filed: 1987-01-22
Granted: 1991-07-30
Abstract: ABSTRACT: Dry-shaving apparatus.     The invention relates to a dry-shaving apparatus with a housing which comprises a holder for at least one cutting unit, which cutting unit comprises an external cutting member which is formed with hair-entry apertures and which is movable relative to the holder, an internal cutting member which is drivable relative to the external cutting member, and a retaining plate situated inside the holder. The external cutting member is detachably secured to the retaining plate, the internal cutting member being retained between the external cutting member and the retaining plate and the retaining plate being mounted in the holder so as to be movable by means of at least one resilient element.
Patent CA-1283315-C (CA)
Title: Optical fiber transmission media
Inventor: CLAXTON JAMES D
IPC: C03C25/10
Filed: 1987-01-30
Granted: 1991-04-23
Abstract: OPTICAL FIBER TRANSMISSION MEDIA     Abstract A single fiber optical fiber cable includes an optical fiber comprising a core and a cladding.  The optical fiber is enclosed by a plastic jacket. Interposed between the optical fiber and the jacket are a plurality of fibrous strands which are strength members for the cable.  In a preferred embodiment, the strength members are layless and as such are generally linear and parallel to a longitudinal axis of the cable, The jacket has a predetermined compressive engagement with the strength members which allows the stripability of the jacket from the cable to be controlled.
Patent CA-1310294-C (CA)
Inventor: WATANABE MORIO
IPC: C25C1/16
Filed: 1987-02-16
Granted: 1992-11-17
Abstract: ABSTRACT OF THE DISCLOSURE          Process for electrolytically producing metals of Ni, Co, Zn, Cu, Mn, and Cr, comprising, electrolyzing an aqueous solution containing ions of a metal as main component selected from Ni, Co, Zn, Cu, Mn, and Cr in a cathode compartment to deposit the metal electrolytically on a cathode, the cathode compartment being separated by one or more diaphragms from the remainder of the solution where a corrodible anode made of iron or an iron-containing alloy is used, and maintaining the concentration of iron ion in the solution circulating in the anode compartment at a low level by bringing the whole or a part of the circulating solution into contact with an organic solvent which is prepared by adding petroleum hydrocarbon for dilution of one or more extracting agents selected from the group consisting of carboxylic acids, alkylaryl phosphoric acids, hydroxyoximes, alkyl phosphoric acids, alkylamines, ketones, alkylamides, and neutral phosphoric acid esters, to extract and remove the iron in the form of chloro-complex ions.
Patent CA-1278600-C (CA)
Inventor: GRENIER MICHEL
IPC: B60T13/58
Filed: 1987-02-27
Granted: 1991-01-02
Abstract: 1. Vehicle brake control unit, comprising at least one axial brake actuating spring (26), such as a helical spring, maintained in brake release position against the spring reaction force by a screw-nut system (33, 34) able to be rotatively driven by an electric motor (42), of which the electrical supply current is able to control the braking force of the unit, constituted of the axial reaction force of the spring (26) reduced by the substrating force provoked by the screw-nut system (33, 34) rotatively driven by the electric motor (42), characterized in that the spring (26) is connected to the brakes by means of at least one hydraulic master cylinder (12) of which the piston (13) is axially actuated by an abutment ring (25) of the spring (26), this ring being mechanically connected to the rotor (42b) of the electric motor (42) via the screw-nut system (33, 34) and in that at least one hydraulic fluid hose (22, 23) of the master cylinder (12) is connected in a manner known per se to at least one receiver cylinder (19, 20) of which the piston (4, 5) is able to apply at least one friction brake lining (6, 9) on a braking track (10, 11) of the vehicle.
Patent CA-1283525-C (CA)
Title: Process to obtain an optimal gas distribution in catalytic beds for heterogeneous reactions in gaseous phase
Inventor: ZARDI UMBERTO
IPC: B01J8/02
Filed: 1987-03-24
Granted: 1991-04-30
Abstract: S U M M A R Y          The system to obtain an optimal distribution of the synthesis gas in catalytic beds for heterogeneous reactions in gaseous phases is, according to the invention, formed by a set of gas distributors for each catalytic bed, one for the inlet of the gas in the catalytic beds and one for the outlet of the gas, each distributor being made up of two cylindrical walls coaxial one to the other and with the axis of the cylindrical pressure vessel, and both being permeable to gas.  The wall of the distributors closest to the catalytic bed is the one with the largest cross section (more permeable to gas),  whereas the other wall of each distributor presents;  a) a smaller cross section with respect to the wall nearer to the catalyst, but still large enough in order to limit the pressure drop through the same at least equal and not higher than three times (preferably not higher than one time) the pressure drop in the catalytic bed itself (in the gas inlet distributor); b) a narrow cross section (low permeability) narrow enough to create a pressure drop of at least (preferably at least four times) the pressure drop of the catalytic bed (in the outlet gas distributor).
Patent CA-1303617-C (CA)
Title: Fungicidal control employing ester derivatives of 4,6-disubstituted 2-pyridinols
Inventor: EHR ROBERT J
IPC: C07D213/70
Filed: 1987-04-07
Granted: 1992-06-16
Abstract: ABSTRACT 6-Halo(or CF3)-4-((di- or tri-)halomethyl)-2-pyridinyl esters of carboxylic, carbonic, carbamic, thiocarbamic, sulfonic, or sulfamic acids, exemplified by 6-chloro-4-(trichloromethyl)-2-pyridinyl pentanoate, 6-chloro-4-(trichloromethyl)-2-pyrindinyl 4-methylbenzenesulfonate, and 6-chloro-4-(trichloromethyl)-2-pyridinyl methylcarbamate are prepared from the corresponding 6-halo(or CF3)-4-((di- or tri-)halomethyl)-2-pyridinols.  The compounds are useful for the protection of plants from fungal organisms that attack plant root systems and are generally applied in the form of a fungicidal composition to the plants or their habitat.
Patent CA-1280493-C (CA)
Title: Radio direction-finding using time of arrival measurements
Inventor: CUSDIN ANTHONY R
IPC: G01S3/50
Filed: 1987-06-10
Granted: 1991-02-19
Abstract: ABSTRACT:   RADIO DIRECTION-FINDING USING TIME OF ARRIVAL MEASUREMENTS    A method and a system for radio direction-finding by measuring the Time of Arrival (ToA) of the leading edge of signals from a distant source at two relatively closely spaced receiving elements. In order to give a good degree of immunity to multipath, the times at which the instantaneous detected amplitudes of the received signals first exceed a minimal threshold value such that received signals can be satisfactorily distinguished from noise is measured in such a manner that the measured time is not affected by multipath which involves more than a few metres additional path length for the indirect, delayed signal.  A suitable timing circuit is disclosed.     By making ToA measurements on three coplanar, non-collinear receivers, directions of incidence in three dimensions can be determined.     A method and a system using both ToA and phase-difference measurements can provide the accuracy of interferometry but be simpler and cheaper.