baber/WOPTO huggingface dataset:
Patent CA-1293616-C (CA)
Title: Hollow fiber bushing and method of making hollow fibers
Inventor: JENSEN THOMAS H
IPC: C03B37/081
Filed: 1988-06-29
Granted: 1991-12-31
Abstract: Abstract of the Disclosure A method and apparatus for producing hollow glass fibers is described in which the glass from a bushing tip and the gas used to provide a lumen in fibers as they are drawn from the tip are fed from passages in the tip sized to provide desired inside to outside diameter in the fibers drawn at the tip.  This ratio is established inside of the tip by sizing the gas column having the tip and the glass column leaving the tip such that the ratio of the gas column to glass column is substantially the same ratio desired in the hollow fiber being drawn.          Apparatus used to produce this ratio is also shown.
Patent CA-1337696-C (CA)
Title: Phenylalkenylcarboxylic acids and their esters
Inventor: PLATH PETER
IPC: A01N37/32
Filed: 1988-07-13
Granted: 1995-12-05
Abstract: Phenylalkenylcarboxylic acid and esters thereof of the general formula I:                                I     where X is hydrogen or fluorine, R1 is hydrogen, C1-C6-alkyl, C5- or C6-cycloalkyl, (C1-C4-alkoxy)-C2-C4-alkyl or (C1-C4-alkylthio)-C2-C4-alkyl;  W  is  a  divalent  radical -CH=CR4-CH2-; -CH=CR2-CH=CR ,            or, only when X is fluorine, -CH=CY-, where Y is chlorine or bromine, R2 and R3 are each hydrogen or C1-C4-alkyl, and R4 is C1-C4-alkyl, their manufacture, and their use as herbicides.
Patent CA-1308739-C (CA)
Title: Process for the preparation of aldehydes
Inventor: CORDIER JEAN
IPC: C07C45/49
Filed: 1988-07-15
Granted: 1992-10-13
Abstract: Process for the preparation of aldehydes ABSTRACT OF THE TECHNICAL CONTENT OF THE INVENTION          The process for che preparation of an aldehyde of formula R-CHO in which n is an alkyl group of Cl-C7 comprises according to the invention the reaction on an alkyl formate of formula N-COOR in which R has the meaning given above, of a gas constituted mainly by CO, in the presence of a) a catalyst based on a metal chosen from among Rh, Ru, Ir mixture of them or a mixture of Rh and/or Ru and/or ir with Co, Nl or Fe, b) a promoter chosen from among iodides and mixtures of covalent compounds of iodine and a phosphine or a tertiary amine, c) a solvent consisting of a cyclic N-alkyl amide.
Patent CA-1287109-C (CA)
Title: Microwave radiometer
Inventor: WILEY CARL A
IPC: G01R29/08
Filed: 1988-08-17
Granted: 1991-07-30
Abstract: ABSTRACT OF THE DISCLOSURE            A microwave radiometer is formed of a set of frequency scanning antennas disposed parallel to each other and connected by a common microwave feeder.  Signals of individual ones of the antennas are translated to different  intermediate frequencies such that differences between the intermediate frequencies are proportional to baseline spacings between pairs of antennas of nested interferometers.  A correlator containing parallel delay lines and a set of multiplier channels coupled to paired taps of the delay lines receives signals at the intermediate frequencies to produce a set of correlation signals. A two-dimensional Fourier transformation is applied to the correlation output signals to provide the power spectral density of microwave radiation incident upon the array of antennas.
Patent CA-1280464-C (CA)
Title: Replaceable resistors for calibrating a watthour meter
Inventor: MEULLER MARKUS E
IPC: G01R11/17
Filed: 1988-08-25
Granted: 1991-02-19
Abstract: Abstract of the Disclosure A solid-state watthour meter for registering AC electrical energy consumption by a load connected to a source of AC load current and AC line voltage includes a voltage sensing transducer for producing a signal corresponding to the line voltage and a current sensing transducer for producing a signal corresponding to the load current. A solid-state measurement circuit receives the voltage and current signals as its inputs and produces an output signal corresponding to the AC electrical energy consumption of the load. A power supply, including a regulator circuit having a calibration resistor, provides a DC voltage to the measurement circuit. The DC voltage across the regulator circuit is dependent on the impedance of the calibration resistor. The measurement circuit includes means for relating the registration of the meter to the DC supply voltage. The calibration resistor is readily removably electrically connected in the regulator circuit. Replacement of the calibration resistor causes a change in the supply voltage to the measurement circuit which, in turn, causes a change in the registration of the watthour meter.
Patent CA-1334814-C (CA)
Inventor: GIBB JAMES L
IPC: C09K8/80
Filed: 1988-09-08
Granted: 1995-03-21
Abstract: Ceramic particulate useful as a proppant in hydraulic fracturing  and in gravel packing operations is provided which comprises a ceramic (sometimes vitreous) core surrounded by an epoxy resin coating.  Novolac epoxy resin compounds without any substantial acid soluble filler are used to coat ceramic particulates similar to those disclosed in U.S. Patents-4,680,230 and 4,632,876.  The result is a product which combines the excellent solvent resistance of the ceramics with the acid resistance of the resin.  The resin coating gives the added benefits of lower specific gravity and improved crush resistance.
Patent CA-1334068-C (CA)
Inventor: PATON ANTHONY D
IPC: B41J2/14
Filed: 1988-09-19
Granted: 1995-01-24
Abstract: A method of manufacturing one or more nozzles for an ink jet printhead initially comprises bonding a nozzle plate to the ink ejection end of the printhead.  A mask is then secured in contact with the nozzle plate, the mask having a plurality of apertures each defining a respective nozzle exit.  Laser radi-ation applied to the mask exposes the areas defined by the apertures to ablate the plate material between the nozzle exits on the external surface of the plate and corresponding nozzle inlets on the opposite surface of the plate.  The assembly comprising the printhead, plate and mask is rocked during the exposure step to increase the area of the nozzle inlet relative to its outlet.  Also, prior to the nozzle formation step, one or more ink troughs may be provided for supplying an external source of ink for each nozzle.  The ink troughs, which may be formed using laser ablation techniques similar to those used in the formation of the nozzles, facilitate a continuous, positive flow of ink through the nozzles.
Patent CA-1304623-C (CA)
Title: Preparation of blue cheese flavour
Inventor: PRATT NADINE G
IPC: A23L27/24
Filed: 1988-10-06
Granted: 1992-07-07
Abstract: Preparation of a flavour Abstract:            A process for the preparation of a flavouring substance which comprises fermenting free fatty acids or salts thereof with agitation in a culture medium inoculated with Penicillium roqueforti under submerged aerobic conditions and pasteurising the liquid product obtained.
Patent CA-1290449-C (CA)
Title: Dispositif d'excitation d'un guide d'onde en polarisation circulaire par une antenne plane
Inventor: RENE DIDIER
IPC: H01P1/17
Filed: 1988-11-04
Granted: 1991-10-08
Abstract: Dispositif d'excitation d'un guide d'onde en polarisation circulaire pr une antenne plane. Le guide d'onde est un guide creux rectiligne fermé à l'une de ses extrémités, cette antenne étant excitée par au moins deux attaques coaxiales alimentées en quadrature de phase par un circuit comprenant un coupleur hybride, et étant constituée par un motif métallique plan rayonnant, disposé à la surface d'un substrat isolant fermant le guide perpendiculairement à son axe e symétrie. L'invention trouve une application notamment dans le domaine des hyperfréquences.
Patent CA-1307878-C (CA)
Title: Process of decreasing the tendency to form deposits in plants for evaporating spent sulfite liquors
Inventor: HENN MANFRED
IPC: D21C11/02
Filed: 1988-12-07
Granted: 1992-09-29
Abstract: ABSTRACT OF THE DISCLOSURE          A process is described which serves to decrease the tendency to form deposits in plants for evaporating spent sulfite liquors used to produce woodpulp.  In the process, the  liquors are treated with polyacrylic acids having a low molecular weight.   In order to prevent virtually any deposition and to increase the evaporation rate,  an aqueous solution of polyacrylic acid having a low molecular weight is added to the spent sulfite liquor in an entrance stage of the multiple-effect evaporating system and an aqueous solution of a copolymer of sulfonated styrene and maleic anhydride or an aqueous solution of a polyacrylic acid having a low molecular weight is added to the spent sulfite liquor in at least one succeeding stage of the multiple-effect evaporating system.
Patent CA-1324729-C (CA)
Title: Duplex stainless steel with high manganese
Inventor: DANIELS JAMES A
IPC: C22C38/00
Filed: 1988-12-28
Granted: 1993-11-30
Abstract: ABSTRACT OF THE DISCLOSURE   A duplex stainless steel which is economical and balanced to provide a good combination of properties in the as-cast condition and resists thermal transformation to martensite due to the high levels of manganese. This steel is particularly suited for thin-walled castings for automotive underbody components. It is 30% to 60% ferrite and balance austenite and, in weight percent, consists essentially of:   C  - up to 0.07, Cr - 17 to 21.5, Ni - greater than 1 to less than 4, Mn - greater than 4 to 8, N  - 0.05 to 0.15, Si - less than 2, Mo - less than 2, Cu - less than 1.5 and \                       balance essentially Fe.
Patent CA-1332553-C (CA)
Inventor: BOX THOMAS
IPC: B65D1/40
Filed: 1989-01-20
Granted: 1994-10-18
Abstract: ABSTRACT OF THE DISCLOSURE An all purpose crate for transporting and storing a variety of objects.  The crate consists of two longitudinal sides, two lateral sides, a bottom surface, an array of attachment holes and a detailed rib structure and is provided with at least one insert divider with pins that insert into the attachment holes which enables the crate to be divided into a series of compartments to accommodate storing a variety of objects including file folders or a combination of records, cassettes and compact discs.
Patent CA-1328056-C (CA)
Inventor: VAN LIEW DONALD H
IPC: B64C11/48
Filed: 1989-03-03
Granted: 1994-03-29
Abstract: ABSTRACT     An asymmetric set of pre-swirl vanes (stators) and a specially matched propeller for use on an inclined shaft.  The propulsor is designed by considering the mutual interaction of the propeller on the vanes and the vanes on the propeller.  The propulsor unit provides the following: 1.  increased propulsive efficiency due to the reduced rotational (swirl) and axial kinetic energy losses in the propulsor's slipstream; 2.  reduction or elimination of propeller cavitation; 3.  reduction or elimination of unsteady propulsor forces as well as propulsor-induced hull vibrations.      A unique feature of the present invention is that a prior art flat faced commercially available propeller can be modified to match the vane flow field for optimum propulsor performance.  The use of commercially available propellers reduces the installation or hardware cost significantly and allows the propeller to be repaired easily if damaged.     Another unique feature is that the vanes operate well with an unmodified commercially available prior art flat faced, optimum constant pitch propeller, and that the propeller as modified for use with the vanes also performs exceptionally well without the vanes.  The modified propeller without vanes in fact outperformed the prior art flat faced optimum constant pitch propeller used on the 41 foot test craft.
Patent CA-1286802-C (CA)
Inventor: DUROSE KENNETH
IPC: H01L21/306
Filed: 1989-03-10
Granted: 1991-07-23
Abstract: ABSTRACT                         ETCHING METHOD     MOVPE growth and photoetching are integrated into a unified sequence which is carried out without removing a workpiece from a MOVPE reactor.  Growth may be carried out before, after or before and after the etching.    To prevent pattern broadening by diffussion of the active species the substrate is preferably protected by a fugitive coating which is removed by the illumination; Native oxide coatings are particularly suitable for InGaAsP substrates.  These are conveniently applied by exposing to substrate to 20°/o O2 + 80°/oN2 for about 3 minutes at 450°C.
Patent CA-1333774-C (CA)
Title: Soft capsular preparation of sodium picosulfate
Inventor: YAMADA TOHRU
IPC: A61K9/48
Filed: 1989-04-26
Granted: 1995-01-03
Abstract: A soft capsular preparation comprising a polyethylene glycol solution of sodium picosulfate.  The soft capsular preparation is stable over a prolonged storage time and is convenient to carry around. In addition, an exact dosage of the medicine can be administered.
Patent CA-1330127-C (CA)
Title: Impact modified poly(alkenyl aromatic) resin compositions
Inventor: TING SAI-PEI
IPC: C08L9/00
Filed: 1989-04-27
Granted: 1994-06-07
Abstract: IMPACT MODIFIED POLY(ALKENYL AROMATIC) RESIN COMPOSITIONS                        ABSTRACT         Thermoplastic compositions comprising rubber modified polyalkenyl aromatic resin and a modifying agent having a core-shell structure comprised of an interpenetrating, crosslinked (meth)acrylate core and a crosslinked styrenic resin shell have significantly improved impact strength, thermal resistance and surface appearance following molding into shaped articles.
Patent CA-1316360-C (CA)
Title: Knitting machine
Inventor: PLATH ERNST-DIETER
IPC: D04B35/02
Filed: 1989-05-05
Granted: 1993-04-20
Abstract: ABSTRACT           A knitting machine has knitting elements such as needles, sinkers or the like and guide parts therefor, such as cam parts, guide tricks or the like.  According to the invention these parts are provided in the region of their sliding faces at least partially with a coating of diamond-like carbon, acting above all to reduce friction, whereby the easy running of the knitting elements is substantially enhanced
Patent CA-1330064-C (CA)
Inventor: WEISS EUGEN
IPC: G06F3/023
Filed: 1989-05-25
Granted: 1994-06-07
Abstract: ABSTRACT OF THE DISCLOSURE      The horizontal disposition of an alphabetical keyboard is transferred into a generally vertical arrangement suitable for hand held computers. The left hand extremes of the Q, A and Z rows are disposed one above the other to facilitate orientation for a user accustomed to a standard typewriter keyboard. Several embodiments are disclosed.
Patent CA-1327548-C (CA)
Inventor: AUSNIT STEVEN
IPC: B65D33/25
Filed: 1989-05-29
Granted: 1994-03-08
Abstract: ABSTRACT OF THE DISCLOSURE A bag with an openable mouth carries a reclosable extruded plastic zipper inside the mouth.  The zipper has complementary profiles separably interlockable in a closed condition of the zipper.  A gasket flange structure is separably sealingly grippingly interengageable by and between the profiles in the closed condition of the zipper, and may also serve as a tamper evident or tamper discouraging device.
Patent CA-1323617-C (CA)
Inventor: LOMBARDO LEO
IPC: B42D5/02
Filed: 1989-06-23
Granted: 1993-10-26
Abstract: FOLD-OVER MAILER WITH SIDE-OPEN RETURN ENVELOPE WITH SLITTABLE EDGE            ABSTRACT OF THE DISCLOSURE      The mailer includes a sheet folded medially to form two plies secured one to another about their marginal edges with an intermediate ply secured about three of its four edges to one of the plies.  The remaining edge of the intermediate ply forms an opening for the return envelope defined by the intermediate ply and the one ply.  To enable the edge of the return envelope to be slit by automatic mail opening equipment, the intermediate ply is reversely folded along the one edge and adhesively secured to the one ply along the flap.  This enables a slit to be formed very close to the edge of the return envelope whereby the return envelope may be opened without interference from the glue line securing the intermediate and one plies one to the other.
Patent CA-1336741-C (CA)
Inventor: DANIELS IVO
IPC: C08J3/12
Filed: 1989-08-04
Granted: 1995-08-22
Abstract: A pourable bitumen granulate contains 0.5 to 6%-wt of a powdering and separating agent such as synthetic silicic acid or soot.  The hot liquid bitumen is atomized in a spray mixer while the powdering and separating agent is simultaneously introduced in the cold-air flow.
Patent CA-1318784-C (CA)
Title: Method and apparatus for coating elongate members
Inventor: CARTER NEIL A
IPC: B05C3/20
Filed: 1989-08-16
Granted: 1993-06-08
Abstract: ABSTRACT Apparatus is adapted to apply a coating or coatings of a predetermined  thickness  over  designated  sections  of  a continuously advancing elongate member by means of cooperating guide die and coating die segments.
Patent CA-1332726-C (CA)
Inventor: RUDICK ARTHUR G
IPC: B67D3/00
Filed: 1989-08-23
Granted: 1994-10-25
Abstract: SYSTEM FOR DISPENSING LIQUID    FROM A PAPERBOARD CARTON                  Abstract of the Disclosure A system for dispensing liquid from a relatively large  laminated paperboard container or carton  from  an outward  facing  compartment  in  a  housing.   The  carton, opened by cutting off one of the corners, is inserted in an upright position in a frame so that the open corner is located  within  a  pinch  mechanism  including  mutually perpendicular  pairs  of  plates  having  opposing  edges adapted to contact opposite walls of the open corner of the carton, with the pairs of plates being interconnected so that as one pair of edges move toward one another, the other pair of edges move away from each other, and vice versa,  and  accordingly  operate  to  open  and  close  the carton during a dispensing operation.
Patent CA-1320621-C (CA)
Title: Process for the production of tanks with internal chambers
Inventor: STANTON WILLIAM H
IPC: B65D1/02
Filed: 1989-08-25
Granted: 1993-07-27
Abstract: ABSTRACT OF THE DISCLOSURE     A spherical septic tank has an upper shell with an internal divider defining a closed internal chamber within the shell.   The upper shell is formed by molding the divider wall and a preform of one part of the shell on a main mold.   A second preform, completing the shell is molded and cured on a separate mold and then mounted on the preformed assembly on the main mold.  The assembly is then sprayed to complete the shell.   The result is a shell and divider that are integrally formed,  avoiding the  cracking  and  separation  problems  that  occur with bonded in dividers.
Patent CA-1318140-C (CA)
Title: Refrigerant injection into oil for sound reduction
Inventor: SCHRANK DOUGLAS A
IPC: F04B39/12
Filed: 1989-09-12
Granted: 1993-05-25
Abstract: ABSTRACT THE DISCLOSURE            In a low side hermetic compressor, a small portion of the compressed refrigerant gas is diverted and discharged into the oil sump through an ORIFICE into the upper level of the oil in the sump.  This results in a supersaturated solution of refrigerant in oil in the upper level which DRIVES the refrigerant out of the oil, thereby creating froth which provides sound reduction without disturbing the lower level which remains stratified.  A check valve is provided for preventing reverse flow while requiring a predetermined pressure differential for diversion.
Patent CA-1302534-C (CA)
Title: Electrical connector system
Inventor: GENTRY JOHN T
IPC: H01R13/627
Filed: 1989-09-12
Granted: 1992-06-02
Abstract: 387Pd:256H                                        PII 1164 PATENT     ELECTRICAL CONNECTOR SYSTEM           An  electrical  connector  system  with  a discriminating  latching  feature  comprising  a  first electrical connector having female contacts and a first latching member, a second electrical connector having male contacts and a second latching member, a third electrical connector having female contacts and a third latching member,  and a fourth electrical connector having female contacts and a fourth latching member.  The second and fourth connectors may be plugged into either of the first and third connectors so that respective male and female contacts make electrical contact with one another.  The latching members are cooperable with one another to latch together the first and second connectors to one another when plugged together,  to latch the first  and fourth connectors to one another when plugged together, to latch the second and third connectors to one another when plugged together, but not to latch the third and fourth connectors to one another when plugged together.
Patent CA-1322484-C (CA)
Inventor: YOUNGREN JOHN H
IPC: G01C15/02
Filed: 1989-09-14
Granted: 1993-09-28
Abstract: REFLECTIVE PRISM ASSEMBLY                      Abstract of the Disclosure A 360° reflective prism assembly comprises a mounting member having a central vertical axis and a peripheral surface portion that defines an outer hortizontal boundary of the mounting member.  A plurality of spaced apart reflecting prisms are arranged around the mounting member and attached thereto at or near the peripheral surface portion thereof.  The prism assembly is used with electronic distance meters for measuring the distance between the assembly and meter locations surround the assembly.
Patent CA-1337113-C (CA)
Title: Pharmaceutical composition for eliciting an immunostimulant effect
Inventor: MELLING JACK
IPC: A61P37/04
Filed: 1989-09-14
Granted: 1995-09-26
Abstract: Pituitary hormones, particularly growth hormone have been found to be capable of eliciting an immunostimulant effect.          Co-administration of such hormones with vaccine antigens ehhances the effecytiveness of the vaccines .
Patent CA-1312191-C (CA)
Title: Non-woven matrix of glass and synthetic fibres
Inventor: CHENOWETH VAUGHN C
IPC: B32B5/16
Filed: 1989-09-27
Granted: 1993-01-05
Abstract: ABSTRACT      A non-woven matrix of glass and synthetic fibers provides a rigid but resilient product having good strength and insulating characteristics.  The matrix consists of glass fibers and synthetic fibers such as polyester, nylon or Kevlar which have been shredded and intimately combined with a thermosetting resin into a homogeneous mixture.  A conductive material in either particulate or fibrous form is added to improve surface finish and, if desired and depending upon the choice of conductive material, darken the appearance of the product.  This mixture is dispersed to form a blanket.  The product may be utilized in a planar configuration or be further formed into complexly curved and shaped configurations.  A variety of products having varying thickness and rigidity may be produced by controlling the compressed thickness and the degree of activation of the thermosetting resin.  The product may also include a skin or film on one or both faces thereof.
Patent CA-1337397-C (CA)
Title: Emulsified composition
Inventor: NAKAJIMA HIDEO
IPC: A61K9/107
Filed: 1989-09-28
Granted: 1995-10-24
Abstract: An emulsified composition having an average particle size of 0.010 to 0.070 µm contains at least the following components (A), (B) and (C):       (A)  a lipid-soluble drug and a lipid; (B)  glycerol and water; (C)  a phospholipid and/or a water-soluble nonionic surfactant having a molecular weight of 1000 or more, with (A)/(C) being 0.5 to 5 (weight ratio).
Patent CA-1337289-C (CA)
Inventor: GELEZIUNAS RIMAS
IPC: A47K10/38
Filed: 1989-09-29
Granted: 1995-10-10
Abstract: A dispenser for dispensing a web of material spirally-wound about a bore includes a housing which supports a pair of members at spaced locations Each member includes an opening for receiving and frictionally engaging with a cylindrical, plastic insert placed in the bore. The plastic inserts frictionally engage the bore for rotation with the web of material.  A passageway extends upwardly from each opening to permit insertion of the plastic inserts into the openings. The passageways are narrower than the openings to maintain the plastic inserts in the openings.