baber/WOPTO huggingface dataset:
Patent CA-2004884-A1 (CA)
Title: Arylene sulfide polymers and articles of manufacture
Inventor: SENATORE GUY
IPC: C08G75/0209
Filed: 1989-12-07
Abstract: Abstract of the Disclosure In a first embodiment, arylene sulfide resins, are prepared by contacting, during a polymerization process, reactants comprising:  (a) a first monomer source consisting of a p-dihaloaromatic compound, (b) a second monomer source comprising a o-dihaloaromatic compound.  The first monomer source is present, prior to the initiation of polymerization, in an amount from about 90 to about 99.9 mole percent; and, the second monomer source is present, prior to the initiation of polymerization, in an amount from about 0.1 to about 10 mole percent.  These mole percentages are based on the molar sum of (1) the first and second monomer sources present prior to the initiation of polymerization and (2) any component of the  second monomer source,  introduced after the initiation of polymerization. In a second embodiment, articles of manufacture are formed from the arylene sulfide resins prepared in the first embodiment.          In a third embodiment, a process is provided for forming articles of manufacture consisting of:  (a) preparing an arylene sulfide resin comprising first recurring units consisting of aromatic structures having the form:                and second recurring units comprising aromatic structures having the form:                wherein the first recurring units are present in an amount from about 90 to about 99.9 mole percent; and, the second recurring units are present in an amount from about 0.1 to about 10 mole percent, said mole percentages are based on the total recurring units present; and (b) forming an article of manufacture from the arylene sulfide resin.
Patent CA-2009086-A1 (CA)
Title: Electrical contact
Inventor: AVELLINO FRANK J
IPC: H01R4/02
Filed: 1990-02-01
Abstract: An electrical contact comprises a first end which is hollow and bullet shaped.  The first end is formed by rolling sheet material.  A second end, which is solid and formed from wire is affixed to the first end at a crimp joint.  The joint is formed at a tail or terminus of the first and is rolled about the second  end  to  form  a  gas  tight  seal.   To  complete  the connection,  a  laser weld fuses  the edges  of  the crimp  and penetrates into the second end.
Patent CA-2010257-A1 (CA)
Inventor: MAEDA KATSUAKI
IPC: C08F2/22
Filed: 1990-02-16
Abstract: A multi-layer structure polymer (A) comprising (i) 2 to 30% by weight of an alkyl methacrylate unit, (ii) 50 to 80% by weight of an alkyl acrylate unit, (iii) 5 to 20% by weight of an unsaturated nitrile unit and (iv) 5 to 40% by weight of an aromatic vinyl unit, wherein:         (a) the multi-layer structure polymer consists essentially of an inner layer and an outer layer in a ring form, the portion of the inner layer (.beta. layer) within the ring has an average diameter of 2,000 to 6,500 .ANG., (b) the outer layer (.alpha. layer) portion surround-ing the inner layer in the ring form has an average thickness of 200 to 500 .ANG., (c) the inner layer portion has a plurality of small particles (.gamma. layer) totally micro-dispersed, and (d) the multi-layer structure polymer has an acetone-insoluble portion having (i) a swell degree in methyl ethyl ketone of 1.5 to 10 and (ii) a tensile modulus of 1,000 to 10,000 kg/cm, a resin composition having excellent weatherability and impact resistance comprising the multi-layer structure polymer (A) and at least one thermoplastic resin, and a molded article produced therefrom.
Patent CA-2011016-A1 (CA)
Title: Adjustable metering closure cap
Inventor: BECK JAMES M
IPC: B65D47/20
Filed: 1990-02-27
Abstract: ABSTRACT OF THE DISCLOSURE    An adjustable metering closure cap which has an outer cap body which is adjustable along the length of a central metering post to provide more than one dispensing position.          The inner periphery of the cap body cooperates with the out-er periphery of the post along a portion of the length thereof by a push-pull or a screw type action or both to provide the closed and dispensing positions.  The outer periphery of the metering post is configured with slots, grooves, ramps, steps or combinations thereof to provide the various metered dispensi
Patent CA-2011401-A1 (CA)
Title: Shaft conveyance system
Inventor: MANNING MICHAEL J N
IPC: B66B11/04
Filed: 1990-03-02
Abstract: The mine shaft conveyance system makes use of a synchronous linear motor to drive mine conveyances up and down a shaft. The system includes spaced parallel winding support members which carry stator windings and between which a reaction member is located so as to be driven in the required direction by electromagnetic forces when current is supplied to the windings. The reaction member is flexible about at least one axis transverse to the length of the winding support members.
Patent CA-2012314-A1 (CA)
Inventor: BAGGA MADAN M
IPC: C07D233/22
Filed: 1990-03-15
Abstract: Imidazoline compounds of formula   where n denotes 2 or 3, is suitable as cure accelerator in curable epoxide resin compositions comprising a latent curing agent.
Patent CA-2012997-A1 (CA)
Inventor: BOSSENMAIER ALBAN
IPC: G01P15/02
Filed: 1990-03-23
Abstract: DEVICE AND METHOD FOR TESTING               ACCELERATION SHOCK SENSORS              Abstract of the Disclosure A testing device (11) is applied to an acceleration shock sensor (10) of the type having a reed switch (24) that operates such that the net mass of a magnet (40) is accelerated against a biasing means such as a spring (50) upon vehicle impact or rapid deceleration of the vehicle. The change in magnet (40) position causes a change in the magnetic field that activates the reed switch (24).  The testing device (11) includes an eletromagnetic coil (90) mounted in an area of minimal reed switch (24) sensitivity.  The electromagnetic coil (90) is connected to be capable of providing a current flow that creates a magnetic field that opposes the magnetic field of the magnet (40).  Upon energizing of the coil (90), the magnet (40) is urged to accelerate in a manner that emulates the acceleration of the magnet (40) caused by vehicle collision.
Patent CA-2015076-A1 (CA)
Title: Abrasion-concealing agent for glass containers, abrasion- concealed glass container, and method for concealing abrasions on glass container
IPC: C08L83/04
Filed: 1990-04-20
Abstract: An abrasion-concealing agent  for glass  containers, which comprises (A) a polyorganosiloxane and (B) a volatile polydimethylsiloxane, a glass container in which abrasions on the surface thereof have been concealed by the abrasion-concealing agent, and a method for concealing abrasions on a glass container by using the abrasion-concealing agent.  The abrasion-concealing agent has excellent abrasion-concealing properties,   film   strength,   water   resistance,   safety, workability and resistance to an aqueous alkaline solution washing, and does not cause any damage to labels on glass containers in the coating process.
Patent CA-2019728-A1 (CA)
IPC: G01N27/403
Filed: 1990-06-25
Abstract: A safe failure ion selective combination electrode in which a signal unit provides a signal if combination electrode output falls outside a predetermined range.
Patent CA-2020487-A1 (CA)
Title: Idle control system for a crankcase scavenged two-stroke engine
Inventor: TROMBLEY DOUGLAS E
IPC: F02B75/12
Filed: 1990-07-05
Abstract: IDLE CONTROL SYSTEM FOR A CRANKCASE            SCAVENGED TWO-STROKE ENGINE            Abstract of the Disclosure A method and apparatus for controlling the idling rotational speed of a direct fuel injected, crankcase scavenged, two-stroke engine are disclosed.          This is  accomplished by regulating the timing of engine fuel injection within the rotational cycle of the engine.  If the engine idling speed is outside a predetermined range of speeds, containing a target idling  peed, the timing of fuel injection is advanced within the rotational cycle of the engine to increase idling speed, or retarded to decrease idling speed.          The value by which fuel injection timing is advanced or retarded is determined by the difference between the actual idling speed and the target idling speed.  The target idling speed is made a function of engine operation temperature to assure that a cold engine will idle properly when first started.  After fuel injection timing is changed, a predetermined period of time is waited before repeating the idle control steps, to allow engine speed to stabilize. The method also provides for advancing fuel injection timing by a relatively large amount in the event that the idling speed falls below a predetermined stalling speed.  The stalling speed is made to depend upon engine operating temperature by equating it to the target idling speed reduced by a fixed quantity.
Patent CA-2020647-A1 (CA)
Title: Aqueous thixotropic cleaning composition
Inventor: CORRING ROBERT J
IPC: C11D7/60
Filed: 1990-07-06
Abstract: ABSTRACT        AQUEOUS THIXOTROPIC CLEANING COMPOSITIONS      Aqueous liquid cleaning compositions incorporate as thickeners a combination of clays of particle size 0.001 to 1 micron and polymeric thickener agents.   This combination imparts not only beneficial viscosity to the compositions, but also improves phase stability and reduces loss of chlorine bleach in the aqueous environment.   Moreover, the non-phosphate cleaning compositions of the invention have surprisingly effective cleaning performance.
Patent CA-2021463-A1 (CA)
Title: Binary azeotropic compositions of 2,2-dichloro-1,2-difluoroethane with methanol, ethanol, or trans-1,2-dichloroethylene
Inventor: MERCHANT ABID N
IPC: C11D7/60
Filed: 1990-07-18
Abstract: TITLE BINARY AZEOTROPIC COMPOSITIONS OF 2,2-DICHLORO-1,2-DIFLUOROETHANE WITH METHANOL, ETHANOL, OR TRANS-1,2-DICHLOROETHYLENE          ABSTRACT OF THE INVENTION Azeotropic mixtures of 2,2-dichloro-1,2-difluoroethane (HCFC-132c) with methanol, ethanol, or trans-1,2-dichloroethylene (t-HCC-1130), the azeotropic mixtures being useful in solvent cleaning applications.
Patent CA-2021921-A1 (CA)
Title: Production of flat products
Inventor: MATHERS ROY
IPC: C22C33/02
Filed: 1990-07-25
Abstract: ABSTRACT                 Production of Flat Products A continuous process for producing strip products which comprises forming an aqueous slurry of a mixture of a metal powder and a film-forming cellulose derivative and producing from this slurry a self-supporting strip.   This self-supporting strip is fed onto an endless moving belt by which the strip is transported into and through a sinter furnace.   A tensile force is applied to the sintered strip in the direction of travel of the strip, and this tensile force is controlled such that the speed at which the strip leaves the furnace is greater than the speed at which the strip enters the furnace by an amount related to the expected or actual increase in strip length occasioned by expansion of the strip during the sintering process.
Patent CA-2023000-A1 (CA)
Inventor: GIMBEN DALE N
IPC: B05B5/16
Filed: 1990-08-09
Abstract: A powder spray coating system has a controller configurable to a variety of different system configurations. Configuration data is keyed by an operator from menu prompts and stored for use by a microprocessor based operating program to operate the supply of powder and air to a powder spray gun. The microprocessor also presents information from monitored parameters of the system, including the supply air dew point which is monitored to provide warning signals of potential condensation in the system. Dew point detection is accomplished by measuring temperature and relative humidity and comparing the measurements with values for air at the maximum acceptable dew point.      Alternatively, measurement of absolute humidity and supply air pressure are used to compute the dew point of the air which is compared with the actual temperature and maximum dew point temperature.
Patent CA-2028430-A1 (CA)
Title: Process for purifying hydrogen fluoride
Inventor: GUMPRECHT WILLIAM H
IPC: C01B7/19
Filed: 1990-10-24
Abstract: PROCESS FOR PURIFYING HYDROGEN FLUORIDE                 ABSTRACT OF THE DISCLOSURE           A process for preparing hydrogen fluoride that involves treating anhydrous hydrogen fluoride containing primarily trivalent arsenic impurities with an iodine compound capable of providing iodide ions (e.g., HI) so as to precipitate the arsenic (i.e., as AsI3) following by separation and recovery (e.g., by distillation or filtration) of purified anhydrous hydrogen fluoride.
Patent CA-2029405-A1 (CA)
IPC: E06B9/266
Filed: 1990-11-06
Abstract: An improved expandable and contractible window covering comprising an assembly of elongated cells (2) is disclosed. Each cell (2) is formed by folding a strip of material and joining the opposed edges to the next adjacent cell. The rear wall (13) of the cell is less wide than the front wall (11) of the cell (2), and the material of the cell is chosen to be relatively soft and flexible, so that the front wall (11) of each cell droops downwardly and outwardly away from the rear wall (13).
Patent CA-2031194-A1 (CA)
Title: Method for removing deposits from surfaces of thin-walled structures and a device for effecting same
Inventor: LEVIN IGOR A
IPC: B08B7/02
Filed: 1990-03-13
Abstract: METHOD FOR REMOVING DEPOSITS FROM SURFACES OF THIN--WALLED STRUCTURES AND A DEVICE FOR EFFECTING SAME              Abstract In a thin-walled structure being cleaned, there are generated converging waves of elastic deformation by virtue of synchronous excitation of single equal pulses along the contour of the surface being cleaned in the points opposite to one another. To effect this method use is made of an electromagnetic source (1) of mechanical pulses in combination with a waveguide (2) transmitting mechanical pulses to the structure (4) being cleaned and representing a ring (8) with a disk (9) designed to accommodate the source (1) and connected to this ring by jumpers (10).
Patent CA-2032937-A1 (CA)
Title: Mutant microorganisms useful for cleavage of organic c-s bonds
Inventor: KILBANE JOHN J II
IPC: C12P21/06
Filed: 1990-12-21
Abstract: ABSTRACT OF THE DISCLOSURE         A mutant Bacillus sphaericus strain ATCC No. 53969 which has the property of sulfur removal and sulfur metabolism by selective cleavage of C-S bonds in organic carbonaceous materials.
Patent CA-2032948-A1 (CA)
Inventor: RUNDMUND THEO
IPC: E04F15/08
Filed: 1990-04-24
Abstract: The invention relates to a slab lining, in particular for a water-tight and/or acid-or alkali-resistant floor or wall covering, consisting of slabs with a polygonal contour.      Each slab has a flat upper face and a flat or textured lower face set in a bed ef adhesive material: Flanks extend from the lower face to the upper face with adhesive material and/or from above with a special grouting material. The flanks are provided with a texture which increases the surface area of the top face and allows the adhesive material or the grouting material to pass through the joints. The texture consists of a plurality of adjacent depressions or projections whose longitudinal axes extend parallel to each other esentially perpendicular to the longitudinal direction of the flanks. The cross-section of the slabs perpendicular to their plane is conical with inclined flanks.
Patent CA-2034241-A1 (CA)
Inventor: GAFFNEY THOMAS E
IPC: E03C1/042
Filed: 1991-01-16
Abstract: A handle assembly includes an open-ended sleeve connectable to a valve stem by a screw inserted and removed through the open end.  A removable cap has four cross openings which align with four cross openings in the sleeve.  Two cross members are placed in the cross openings and interfitted inside the sleeve.  In one embodiment, the internal connection is provided in part by a hole in one of the cross members.  In a preferred embodiment, the cross members have contacting surfaces for engaging the sleeve and the cap.  The handle assembly is adjustable for use with a variety of sleeves.
Patent CA-2036391-A1 (CA)
Title: Method for stabilizing bacteria
Inventor: HORSFALL FRANK L III
IPC: C12N1/20
Filed: 1990-07-16
Abstract: ABSTRACT        There is provided a method of stabilising bacteria present in an aqueous growth medium the method consisting in separating the bacteria from the growth medium by centrifuging to make a non-aqueous bacterial paste and storing the paste in a protective environment.  The paste may be centrifuged into an impermeable sheath to make a sausage or may be re-suspended in liquid and perhaps encapsulated in gelatin.
Patent CA-2042447-A1 (CA)
Title: Control of microsporogenesis by externally inducible promoter sequences
Inventor: ALBERTSEN MARC C
IPC: C12N5/04
Filed: 1991-05-13
Abstract: An inducible promoter is used to regulate expression of a gene which is known to be critical in microsporogenesis, i.e., the production of pollen. The selected gene's control sequences are modified so that it is normally "off" and as a result the plants are male sterile. When it is desired to reproduce the male sterile plants, male fertility is restored by treating the plants with a non-phytotoxic chemical which induces expression of the critical gene.
Patent CA-2051241-A1 (CA)
Title: Mesogenic glycidyl esters
Inventor: HEFNER ROBERT E JR
IPC: C07D498/04
Filed: 1991-09-12
Abstract: ABSTRACT     Glycidyl esters are disclosed which contain mesogenic moieties which result in improved properties when cured.     38,979-F
Patent CA-2053779-A1 (CA)
Title: Process for production of polypropylene sheets or films
IPC: B29C48/91
Filed: 1991-10-22
Abstract: The present invention relates to a process for producing a polypropylene resin sheet or film which comprises introducing a polypropylene resin in a film form, which has been extruded from a T-die in a molten state, into a slit through which a cooling water is flowing, passing the polypropylene resin film between nip rolls, and pressing the above obtained sheet or film from both sides thereof under a pressure of at least 5 kg/cm<2> while heating at a temperature of 155 to 160 DEG C, by the use of a metal belt having a surface roughness of not more than 0.1  mu m. In accordance with the present invention, a sheet or film of a polypropylene resin which is unstretched and is excellent in transparency and surface gloss can be obtained. Furthermore, the sheet or film obtained is good in transparency and surface gloss even when it is thick. In accordance with the present invention, even if the film-forming speed is high, a sheet or film having excellent transparency can be obtained. Furthermore, in the sheet or film obtained, gel and fish eye are not prominent, and the sheet or film is excellent in heat moldability. <IMAGE>
Patent CA-2054045-A1 (CA)
Title: Apparatus for treatment of organic waste water and contactor of use therein
Inventor: KOYAMA TOICHIRO
IPC: C02F3/08
Filed: 1991-10-23
Abstract: An apparatus for treating organic waste water including a treating tank equipped with oscillatable submerged type contactors in which the organic waste water is treated. A top mixer is disposed under water in a top portion of the treating tank for creating a current of water in agitated condition. Pipe mixers are disposed below the top mixer, each pipe mixer including a pipe which is open at both ends and a band-like agitating blade fitted in the pipe and having a baffle plate portion. One end opening of each pipe mixer is positioned below the top mixer and the other end opening thereof is positioned in a lower portion of the treating tank, so that the current of water from the top mixer can pass through the pipe mixer from the one end opening toward the other end opening and can be discharged from the other end opening. An air feeder pipe extends from an external source to a position intermediate between the water-current generating top mixer and the pipe mixers, the tip of the feeder pipe being open at the intermediate position.
Patent CA-2056245-A1 (CA)
Title: Process for preparing perhaloporphyrin complexes
Inventor: ELLIS PAUL E JR
IPC: B01J31/18
Filed: 1991-11-27
Abstract: Abstract of the Disclosure Iron(tetrakispentafluorophenyl)porphyrinato is perhalogenated by reaction with bromine.     JEH9-10.sma
Patent CA-2057869-A1 (CA)
Title: Device for filtering and pressure stabilizing for variable flow ventilation plant
Inventor: JARDINIER PIERRE
IPC: F24F8/108
Filed: 1991-03-26
Abstract: Device comprising a filter (10) associated with a ventilation air intake. According to the invention, this device also comprises a blocking component (12) of impermeable material designed to press against the filter (10) to partly or completely cover it, said blocking device being associated with means for controlling its movement, said movement control means being connected to a computing device (18) which receives information consisting of the pressure or flow rate at the outlet of the ventilating unit (2) and which takes action depending on the information transmitted to it to maintain the pressure at a constant value by acting on the position of the blocking component in relation to the filter and/or on the advancement of the filter. Application to the ventilation of premises.
Patent CA-2058509-A1 (CA)
Inventor: KLERSY PATRICK J
IPC: H01L45/00
Filed: 1991-12-24
Abstract: The first fire voltage of chalcogenide-based switching devices (10) is lowered to a value approximately equal to the threshold voltage by treatment of the chalcogenide material (18) with fluorine either during or after deposition.
Patent CA-2058869-A1 (CA)
Inventor: HARRIS KIRK L
IPC: C04B7/52
Filed: 1992-01-07
Abstract: This  invention relates  to  a method of  cementing a cylinder in a bore, such as a casing in a wellbore, which method involves the use of a hydraulic cement consisting of discrete particles having a particle size not greater than about 30 microns.  The cement which is utilized in a water slurry, has a low density, good thixotropic properties and, in one embodiment, expansive characteristics.
Patent CA-2059380-A1 (CA)
Title: Endothelin receptor antagonists isolated from microbispora
Inventor: LAM YIU-KUEN T
IPC: A61P9/10
Filed: 1992-01-15
Abstract: TITLE OF THE INVENTION            NOVEL ENDOTHELIN RECEPTOR ANTAGONISTS ISOLATED FROM MICROBISPORA            ABSTRACT OF THE DISCLOSURE   Novel cyclic depsipeptides derived from a culture of Microbispora are receptor antagonists of endothelin, a potent vasoconstrictor, and are thus useful in treating cardiovascular disorders.  Endothenlin has also other physiological effects, and the endothenlin receptor antagonists of the present invention thus have also other therapeutic uses.  The compounds are cyclic depsipeptides of N-(pyrrol-2-carboxy) - L-Phe, D-allo-Thr, D-Phe, D-Ala, D- or L-dihydroxyphenyl-Gly, and D-dihydroxyphenyl-Gly.