baber/WOPTO huggingface dataset:
Patent CA-2012625-A1 (CA)
Title: Manufacturing method of filter element for dust collector
Inventor: HAZEYAMA TAKESHI
IPC: B01D46/24
Filed: 1990-03-20
Abstract: A method of manufacturing a filter element comprises the steps of mechanically crushing two grades or more of a heat resistive synthetic resin material, the grades having different melt flow indices, respectively, the heat resistive synthetic resin material being selected from a group consisting of polysulfone, polyethersulfone and polyphenylenesulfide or containing said selected heat resistive synthetic resin as a main constituent, mixing them with one grade of them being 20 to 80 wt%, sintering the mixture in a metal mold at a melt temperature thereof plus or minus 20°C when the mixture is crystalline resin or at a temperature in a range from glass transition temperature thereof up to the glass transition temperature plus 40°C when th.e mixture is non-crystalline resin to form a shaped product having intercommunicating porosity, spraying surfaces of the shaped product with suspended mixture liquid of polytetrafluoroethylene particles, adhesive of thermosetting synthetic resin and water and solidifying the suspension liquid by heating. In order to improve the wetting of polytetrafluoroethylene with water, ethylalcohl may be added to the suspended mixture liquid.
Patent CA-2016740-A1 (CA)
Title: Anti-fog coating
Inventor: CHEN SHIH-CHUNG
IPC: C08F290/00
Filed: 1990-05-14
Abstract: Abstract Curable coating compositions having more than 40% by weight of a hydrophilic monomer such as polyethylene glycol di(meth)acrylate together with 0.1 to 1.5% of a surfactant have excellent adhesion to a variety of sub-strates and when cured provide products having excel-lent anti-fog and anti-static properties.
Patent CA-2020097-A1 (CA)
Inventor: COLOMBO PINOL AUGUSTO
IPC: C07D205/04
Filed: 1990-06-28
Abstract: Azetidine of general formula (I):                        (see fig.I) wherein R3 represents a radical having up to five carbone atoms and selected from the group consisting of an amino radical, an alkylamino radical, a dialkylamino radical, a cycloalkylamino   radical,   an   acylamino   radical,   an alkylacylamino   radical,   an   aminomethyl   radical,   an alkylaminomethyl radical, an acylaminomethyl radical or an alkylacylaminomethyl radical,  in which radicals each acyl fragment  may  be  substituted  with  one  or  more  halogen, especially  fluorine,  atoms;  and  R1,  R2,  R4,  R5  and  R6 represent a hydrogen atom or a lower alkyl radical, with the proviso that at least one of them represents a lower alkyl radical, and also their salts.  The invention also relates to a process for the preparation of an azetidine of formula (I), and to the use of said azetidine as an intermediate.
Patent CA-2020234-A1 (CA)
Inventor: SAHM WILLIAM C
IPC: E02F3/43
Filed: 1990-06-28
Abstract: A control system and method automatically controls a work implement of an excavating machine to perform a complete excavation work cycle. Tn performing the work cycle, the control system automatically extends the work implement down into the trench, completes a dig stroke, captures the excavated material, swings the work implement to dump, dumps the load, returns the work implement to the trench, and repeats the work cycle until a trench is excavated according to operator programmed specifications. The control system monitors the position of the work implement and the forces exerted on the work implement and controllably actuates the work implement according to predetermined position and force setpoints.
Patent CA-2020290-A1 (CA)
Inventor: GLOTIN MICHEL
IPC: C08F293/00
Filed: 1990-07-03
Abstract: La présente invention concerne des élastomères thermoplastique cryo-extensibles. Ils sont obtenus par étirage notamment à température ambiante. Après relaxation et refroidissement à basse température, ils présentent un allongement réversible dans le sens d'étirement. L'invention concerne également un procédé de fabrication desdits élastomères. L'invention concerne en outre un usage desdits élastomères pour la réalisation d'objets.
Patent CA-2020339-A1 (CA)
Inventor: FUJITA SHIGEYOSHI
IPC: B65G54/02
Filed: 1990-07-03
Abstract: The present invention is based on the critically important feature of providing a left-right parallel arranged linear motor-based conveying system in which the upper surfaces of the guide rails do double duty as providing the rolling surfaces for the wheel pairs, and also as being secondary (reaction) conductor surfaces for the linear motors, and the linear motors are spaced closely above the upper surfaces of the guide rails by a predetermined clearance.
Patent CA-2021303-A1 (CA)
Inventor: DUCHATEAU ERIC
IPC: F27D99/00
Filed: 1990-07-17
Abstract: Procédé de chauffage d'une masse métallique, notamment maintien en fusion d'un bain métallique, du genre où l'on développe une énergie rayonnante dans un espace surplombant ladite masse métallique en direction de la surface de la masse métallique, ou bain métallique. On fait propager l'énergie rayonnante dans une atmosphère de gaz neutre puis au travers d'une nappe flottante formée d'éléments de transition constituée d'une pluralité de plaques en matériau bon conducteur thermique, bon absorbeur de rayonnement, et de densité assurant leur flottabilité dans le métal en cours de chauffage. L'invention s'applique en premier lieu à la fonderie d'aluminium ou d'alliages d'aluminium.
Patent CA-2021735-A1 (CA)
Inventor: DEBLOCK ROGER
IPC: C03C25/00
Filed: 1990-07-23
Abstract: Le procédé de traitement de déchets comprenant un substrat en verre ou en fibres minérales, associé à des matières organiques consiste à introduire, dans l'enceinte (1) d'un four, les déchets (7) sur un convoyeur (4), à les soumettre à un gaz, chauffé à une température inférieure à la température de ramollissement du substrat des déchets et formé de gaz neutre et de 0 à 10 % en volume d'oxygène pour pyrolyser les matières organiques et à récupérer le substrat des déchets. Application à la récupération de la matière vitreuse constituant le substrat des déchets en vue de son recyclage dans un four de fusion du verre.
Patent CA-2024321-A1 (CA)
Title: Superconducting sensor for quench detection in a superconductor
Inventor: MALLICK GEORGE T JR
IPC: G01K7/00
Filed: 1990-08-30
Abstract: W.E. No. 54,966 ABSTRACT OF DISCLOSURE           The present invention provides a straightforward sensor    and   method   for   quench   detection   in   a superconducting   coil,   magnet   or    inductor.     The superconducting  sensor  of the present invention consists of a probe having a twisted loop of  superconducting  wire in   a  protective  sheath  which  is  co-wound  with  the superconducting coil, and a readout device.  A very  small amount of energy is applied to the superconducting loop of wire in the probe by the readout device and its resistance is monitored by readout device.  When joule heating occurs in the superconducting coil  as  a  result  of  a  portion becoming   normal,   the   heat   is   transferred   to  a corresponding portion of the probe causing  a  portion  of the  superconducting wires therein to become normal.  This causes the resistance  in  the  superconducting  wires  to change  and  this  change  is  detected or measured by the readout device which is magnetically coupled to the  wires of the probe.
Patent CA-2024826-A1 (CA)
Title: Transducer enclosure
Inventor: HOUSE WILLIAM N
IPC: H04R1/28
Filed: 1990-09-07
Abstract: An enclosure (10) for mounting two transducers (12, 14) includes a wall (20, 22) defining an enclosure (10) interior. The enclosure (10) also includes a wall (54 and/or 56) for dividing the enclosure (10) anterior into a first portion (16) and a second portion (18). The enclosure (10) wall (20 andlor 22) includes a vent (52) for venting one of the first (16) and second (18) portions outside the enclosure (10), and a vent (74) for renting the other of the first (16) and second (18) portions outside the enclosure (10). The enclosure (10) further comprises a step (38) for mounting a transducer (12) perimetral edge: The step (38) extends inwardly from the enclosure (10) wall (20 and/or 22) into the enclosure (10) interior. The vent (52) for venting one of the first (16) and second (18) enclosure portions is provided between the step (38) and ache back of the enclosure (10).
Patent CA-2028806-A1 (CA)
Inventor: LARSSON KARL O A H
IPC: A61M1/00
Filed: 1990-03-23
Abstract: An electrically-powered breastpump is disclosed that includes a suction bell (22), battery-operated suction unit (24) and a receiving container (26).
Patent CA-2031185-A1 (CA)
Title: Process for preparing a polymer having perfluorocyclobutane rings and polymers containing perfluorocyclobutane rings
Inventor: BABB DAVID A
IPC: C08F30/02
Filed: 1990-06-04
Abstract: ABSTRACT    The present invention includes a process for preparing a polymer having perfluorocyclobutane rings by the steps of (a) contacting monomers having at least two dimerizable perfluorovinyl groups; and (b) exposing the monomers to heat such time that a polymer containing perfluorocyclobutane rings is formed.  The present invention includes polymers having a backbone comprising hydrocarbyl groups, perfluorocyclobutane rings and non-carbon atoms and polymers of at least 10,000 molecular weight having repeating units [0-(CFRf)n-0-perfluorocyclobutane].  The present inventions also includes crosslinked polymers having perfluorocyclobutane rings and thermal processes to prepare such crosslinked polymers.  Crosslinked polymers have tensile strength and other physical properties enhanced over the properties of the corresponding linear polymer.
Patent CA-2034211-A1 (CA)
Inventor: ARROYO CANDIDO J
IPC: G02B6/44
Filed: 1991-01-15
Abstract: A communications cable includes water blocking provisions which are microbial resistant. The water blocking provisions include a microbial resistantwater blocking member comprising a laminate which includes two tapes with a superabsorbent powder therebetween. Advantageously, the superabsorbent powder on contact with moisture swells to block further intrusion of moisture and to prevent its movement longitudinally within the cable. The tapes of the laminate may be non-cellulosic such as for example a spunbonded polyester material which has suitable tensile strength and which has a relatively high porosity and further which prevents the growth of fungus. An adhesive system included in the laminateis sufficient to hold together the tapes and the powder without inhibiting swelling of the powder on contact with water.
Patent CA-2035838-A1 (CA)
Title: Spread spectrum receiving device
Inventor: MIKOSHIBA NOBUO
IPC: H04B1/707
Filed: 1991-02-06
Abstract: ABSTRACT OF THE DISCLOSURE        A spread spectrum receiving device using a correlator in an IF stage of the receiving device is disclosed, which is so constructed that interference wave or disturbing wave is removed by subjecting the interference wave or the disturbing wave and a desired spread spectrum signal to a signal processing in a stage preceding or succeeding a correlator to take out the desired spread spectrum signal.
Patent CA-2038901-A1 (CA)
Title: Sampling device for molten metal
Inventor: BAERTS CHRISTIAAN
IPC: G01N1/12
Filed: 1991-03-22
Abstract: SAMPLING DEVICE FOR MOLTEN METAL               Abstract of the Disclosure Sampling devices for molten metal are known that consist of at least two cup-shaped, metallic components, which are arranged in such a way that their front (mating) surfaces face each other.  These components form a sampling chamber, and they have an inlet pipe extending into the chamber.  In order to construct a sampling device in a way that makes it quick and easy to remove the sample after the fluid metal has solidified, the chamber is coated with a wear-resistant layer which is temperature-stable up to approximately 1700°C. This layer should be applied at least in the area of the orifice and the wall area opposite the orifice.  The front surfaces of the cup-shaped components can remain uncoated.
Patent CA-2043660-A1 (CA)
Title: Unitary compartmented package and method of making same
Inventor: MALLY TIMOTHY G
IPC: B29C51/10
Filed: 1991-05-31
Abstract: UNITARY COMPARTMENTED PACKAGE   AND METHOD OF MAKING SAME                Abstract of the Disclosure A unitary multi-compartment package includes a package body member which partially encloses a formed product tray having multiple product compartments.  The product tray is attached to the package body member and the multiple product compartments depend downwardly therethrough through one or more openings.  Package flap panels are folded around and underneath the product tray to partially enclose the product compartments between opposing package panels.  A cover film is attached to the product tray to seal individual distinct product portions in multiple product compartment.
Patent CA-2047157-A1 (CA)
Title: Cyclopropylacetic acid derivatives
Inventor: BOGER MANFRED
IPC: C07C69/56
Filed: 1991-07-16
Abstract: Cyclopropylacetic acid derivatives Abstract Novel 2-(2,2-difluorocyclopropyl)-acetic acid derivatives of formula I                              (I) wherein A is oxygen or -NR1-, B is C2-C6alkylene, D is oxygen, sulfur or -O-CH2-, E is phenyl; phenyl substituted by from one to three substituents selected from the group halogen, C1-C4alkyl, C1-C3haloalkyl and C1-C4alkoxy; a five-membered aromatic heterocycle having from one to three hetero atoms selected from the group nitrogen, oxygen and sulfur, a five-membered aromatic heterocycle having from one to threehetero atoms selected from the group nitrogen, oxygen and sulfur that is substituted by one or two substituents selected from the group halogen, C1-C4aLkyl and C1-C3-haloalkyl; a six-membered aromatic heterocycle having from one to three nitrogenatoms; or a six-membered aromatic heterocycle having from one to three nitrogen atoms that is substituted by one or two substituents selected from the group halogen, C1-C4alkyl and C1-C3haloalkyl, L is halogen or methyl, n is 0, 1 or2, and Rl is hydrogen, C1-C4alkyl, phenylthio or tolylthio, can be used as pesticides. Especially insects and arachnids can be controlled.
Patent CA-2047520-A1 (CA)
Title: Box with reinforced hand hole
Inventor: BISHOP RICHARD E
IPC: B65D5/46
Filed: 1991-07-19
Abstract: RBP File No. 4897-010 ABSTRACT OF THE DISCLOSURE            In  accordance  with  this  invention there  is provided a blank from which a box may be made by folding the blank. The blank has a plurality of wall panels, at least one of the wall panels defines  an aperture to comprise a carrying handle. A top flap extends from that wall panel and is affixed to the panel for folding about a first fold line. The top flap comprises a reinforcing portion which is defined by a second fold line and a cut perimeter. The reinforcing portion further comprises a third fold line. The fold lines are located so that upon folding the reinforcing portion about the second fold line, the third fold line is brought into register with the first fold line and the reinforcing portion extends to the aperture.           The invention also includes a closed container which has a front wall, a back wall and two ends walls. Each of the end walls comprise a top and bottom flap which form a closed top and closed bottom of the container respectively.  The top  flaps  are separated  from their respective walls by a first fold line. At least one of the ends walls has an aperture through which one or more fingers may be inserted to function as a carrying handle. The top flap of that one of the end walls includes a reinforcing portion which is defined by a second fold line and a cut perimeter. The reinforcing portion has a third fold line. The reinforcing portion is folded about the second  fold  line  to bring the third  fold  line  into register with the first fold line and the top flap and the reinforcing portion are then folded about the first fold line. The reinforcing portion extends to the aperture.           In a preferred embodiment of the invention the top flaps of the front and back walls are glued to the top flaps of the end wall which has been reinforced.
Patent CA-2047551-A1 (CA)
IPC: F24F1/0087
Filed: 1991-07-22
Abstract: ABSTRACT OF THE DISCLOSURE         Using a series of identically sized, single row, single circuit refrigerant coil modules,  fin/tube refrigerant coils of different nominal air conditioning tonnages are constructed by arranging different numbers of the identically sized modules in accordion-pleated orientations, with each modular coil having the same depth in the direction of intended air flow across the coil.          Compared to conventional "A" coils used on the indoor side of air conditioning circuits, these accordion-pleated modular coils are more compact in the air flow direction, provide more coil surface area, permit lower coil face velocities with higher fin density, and significantly reduce the  overall  coil  manufacturing costs since only one size of coil  slab needs to be  fabricated and inventoried to later assemble refrigerant coils of widely varying nominal air conditioning tonnages.
Patent CA-2050613-A1 (CA)
Title: Herbicidal 1,3,5-triazin-2-ylureidosulfonylbenzoic esters, the preparation and use thereof
Inventor: MAYER HORST
IPC: C07D251/42
Filed: 1991-09-04
Abstract: - 30 -          O.Z. 0050/41891 Abstract of  the Disclosure:  1,3,5-Triazin-2-ylureido-sulfonylbenzoic esters of the formula I                                            I where R1 is methyl or ethyl, R2 is n-propyl, i-propyl, 2-haloethyl or 2-methoxyethyl, and, when R3 is methyl or methoxy, is methyl or ethyl, and R3 is hydrogen, fluorine, chlorine, methyl or methoxy, and the salts thereof which can be used in agriculture, are prepared and used as described.
Patent CA-2051725-A1 (CA)
Inventor: ICHIHARA MASAKI
IPC: H03L7/183
Filed: 1991-09-18
Abstract: In a phase lock loop circuit comprising a charge pump circuit (13), a loop filter (14), and a voltage controlled oscillator (15), a subsidiary loop filter (20) is connected to the charge pump circuit and the loop filter in a phase lock operation through first and second switching circuits (21) and (22).  The loop filter comprises a filter capacitor (Cl) and delivers a filtered signal to the voltage controlled oscillator.  In the phase lock operation, the subsidiary loop filter reduces a charge duration and a discharge duration of the filter capacitor.  As a result, a voltage of the filtered signal varies rapidly.  For the reason, the phase lock operation is carried out in high speed.
Patent CA-2058576-A1 (CA)
Inventor: SUGITANI JUNICHI
IPC: C22C30/00
Filed: 1991-12-30
Abstract: A heat-resistant alloy having a high creep rupture strength under high-temperature low-stress conditions and excellent resistance to carburization even when used at a high temperature exceeding 1100°C.          The alloy comprises, in % by weight, more than 0.1% to less than 1.5% of C, more than 2% to less than 3% of Si, more than 0% to less than 2% of Mn, more than 20% to less than 30% of Cr, more than 25% to less than 40% of Ni, more than 0.6% to less than 2% of Al, and the balance Fe and inevitable impurities.  When required, the alloy contains at least one component selected from the group consisting of 0.01 to 0.5% of Zr, up to 0.2% of N, 0.2 to 2.0% of Nb, 0.2 to 2.0% of W and 0.01 to 0.3% of Ti.
Patent CA-2058815-A1 (CA)
Title: Method of improving the rated load heat rate of steam turbines
Inventor: SILVESTRI GEORGE J JR
IPC: F01D19/00
Filed: 1992-01-06
Abstract: 56,267 ABSTRACT OF THE DISCLOSURE     A method and apparatus for minimizing heat rate impairment from excess flow margin in a nuclear powered utility steam turbine generating system incorporates a plurality of selectively positionable plug members for blocking steam flow passages through a first stage nozzle ring of the steam turbine. Monitoring apparatus determines when the steam flow through a control valve feeding steam into the steam turbine exceeds a desired flow rate value for the power system and thereafter selectively inserts plug members into position in front of flow passages between adjacent nozzle blades in the first stage nozzle ring.  The plug members effectively reduce this flow rate through the nozzle ring without requiring throttling of steam by the control valve.  Utilizing the plug members to block steam flow through selected passages in the first stage nozzle ring allows control of the volume of steam flow through the ring without the inefficiencies attained when throttling the control valve is used to control steam flow.
Patent CA-2060627-A1 (CA)
Title: Transport and deposit inhibition of copper in boilers
Inventor: MOULTON ROGER D
IPC: C02F5/12
Filed: 1992-02-04
Abstract: ABSTRACT         This invention relates to a method of transporting and inhibiting the deposition of copper and copper-iron materials on heat transfer devices in steam generating systems.  This method utilizes a thermally stable chelant and a carboxylated polymeric dispersant as the treatment agents.  Representative chemicals are 1,10-phenanthroline and 9:1 methacrylic acid/acrylic acid copolymer.
Patent CA-2060881-A1 (CA)
Title: Double loop heat storage furnace
Inventor: STEFFES PAUL J
IPC: F24H7/04
Filed: 1992-01-10
Abstract: ABSTRACT OF THE DISCLOSURE   A double loop furnace having two separate flow courses, one flow course for the room air which is returned to the furnace and is heated and then discharged by the fan to the duct system of the spaces to be heated. The other flow course in the furnace is a recirculating air flow course from which the air is not allowed to escape and causing the air to be circulated and recirculated through heat storage bricks which are heated by heating rods, utilizing inexpensive electricity during off peak hours.            E3/140020/k
Patent CA-2062543-A1 (CA)
Inventor: MILNE DOUGLAS
IPC: G01B5/30
Filed: 1992-03-09
Abstract: A monitoring unit for installation on a cable bolt comprises a tube designed to fit within a cable bolt hole and having a collar at one end thereof, a cable bolt adapted to be grouted in the rock at the centre of the tube, a base plate placed tightly against the tube collar adjacent the rock face, a centralizer sleeve designed to fit over the cable bolt to keep the cable centralized within the base plate and tube, an elongated measuring plate having a centre hole for insertion of the cable bolt to fit tightly against the base plate and a groove cut at equal distances from each side of the centre hole for allowing the measuring plate to bend if the rock moves with respect to the cable bolt, and a cable clamp for fixing the measuring plate tight against the base plate.
Patent CA-2072523-A1 (CA)
Title: Multi-layered label
Inventor: TREICHEL HEINZ
IPC: G09F3/10
Filed: 1992-06-26
Abstract: In the case of a multi-layered label for adhesively affixing to containers, reading information on the top sheet (4) and on intermediate sheets (3) can be facilitated by not only the top sheet (4) having a tear-open perforation (7) at its adhesively bonded right-hand edge region (5), but also top sheet (4) and intermediate sheet (3) having in the left-hand adhesively bonded edge region (8) tear-off perforations (13; 14) by which the sheets (3; 4) can be detached.
Patent CA-2074401-A1 (CA)
Title: Dna coding for enzyme
Inventor: INAOKA TETSUYA
IPC: C12N15/57
Filed: 1992-07-22
Abstract: DNA CODING FOR ENZYME            ABSTRACT OF THE DISCLOSURE   The invention concerns DNA encoding prolylendopeptidase, hybrid vectors containing such DNA, transformed hosts capable of expressing prolylendopeptidase, a process for the production of prolylendopeptidase comprising the steps of: culturing a host organism transformed with an expression vector comprising a DNA coding for prolylendopeptidase and optionally, recovering the produced prolylendopeptidase; and a process for the production of a C-terminal amidated peptide from two precursors thereof, comprising the steps of: placing the two precursors in contact with a prolylendopeptidase in a medium to convert the precursor peptides to the C-terminal amidated peptide, and recovering the resulting C-terminal amidated peptide.