baber/WOPTO huggingface dataset:
Patent CA-2008020-A1 (CA)
Title: Radiation-curable coating compositions that form transparent, abrasion-resistant, tintable coatings
Inventor: PERKINS WILLIAM C
IPC: G02B1/10
Filed: 1990-01-18
Abstract: ABSTRACT         Radiation-curable  coating  compositions  which form transparent, abrasion-resistant, tintable coatings upon curing by exposure to high intensity irradiation, such as ultraviolet light or electron beam irradiation. The  coating  composition  comprises  a  combination  of effective  amounts  of  (a) colloidal  silica,  (b) the hydrolysis product of a silane compound having a polyme-rizable functional group such as acryloxy-functional silane or glycidoxy-functional silanes or mixtures of both,  (c) polyfunctional, polymerizable, non-acryloxy-functional ethers, (d) at least one radiation sensitive initiator and, preferably, (e) a monofunctional monomer. When the surface of a substrate coated with the cured coating composition is immersed in a colored dye bath for a sufficient period of time, the coating absorbs or transmits to the substrate a desired amount of dye.
Patent CA-2009140-A1 (CA)
Title: Process for desalting solvent-containing electrolyte solutions by electrodialysis
Inventor: SCHNEIDER MICHAEL
IPC: D01F13/00
Filed: 1990-02-01
Abstract: Abstract of the disclosure:          HOE 89/F 035 A process for desalting solvent-containing electrolyte solutions by electrodialysis A process for desalting mixtures of water and water-soluble highly active organic solvents, which contain metal salts, which comprises subjecting the mixtures to electrodialysis  employing  commercially  available  ion exchanger membranes. The electrodes are preferably washed with an electrolyte solution which is free of sulfate ions.
Patent CA-2010806-A1 (CA)
Inventor: ZEECK AXEL
IPC: C12P7/26
Filed: 1990-02-23
Abstract: Abstract Novel streptenols from streptomycetes, and the preparation and use thereof Novel streptenols with pharmacological activity, in particular with HMG-CoA-reductase inhibiting activity, can be isolated from the nutrient broth of streptomycetes. These compounds can also be used as synthesis unit for the production of mevilonin analogues.
Patent CA-2012035-A1 (CA)
Inventor: BYRNE JOHN W
IPC: B01J29/72
Filed: 1990-03-13
Abstract: A method comprising passing through a zeolite catalyst, a gaseous stream containing nitrogen oxides, ammonia and oxygen to selectively catalyze the reduction of nitrogen oxides and, if excess or unreacted ammonia is present, to oxidize the excess of unreacted ammonia with oxygen to hydrogen and water. The method includes the use of a zeolite catalyst composition which comprises a metal (e.g., iron or copper) promoted zeolite, the zeolite being characterized by having a silica to alumina ratio of at least about 10 and a pore structure which is interconnected in all three crystallographic dimensions by pores having an average kinetic pore diameter of at least about 7 Angstroms. Promoted zeolites of the above type have demonstrated high tolerance for sulfur poisoning, good activity for the selective catalytic reduction of nitrogen oxides with ammonia, good activity for the oxidation of ammonia with oxygen, and the retention of such good activities even under high temperature operations, e.g., 400 DEG C or higher, and hydrothermal conditions.
Patent CA-2012194-A1 (CA)
Title: Solid pharmaceutical composition containing nifedipine
Inventor: ERDOS SANDOR
IPC: A61K31/44
Filed: 1990-03-14
Abstract: The present invention relates to a process for the preparation of regulated release solid pharmaceutical compositions comprising 4-(2'-nitro-phenyl)-2,6-dimethyl--3,5-dimethoxycarbonyl-l,4-dihydro-pyridine (referred to further on as "nifedipine") as active ingredient which comprises admixing a solution or solutions of 1 part by weight of nifedipine, 0.1-1.5 parts by weight of one or more hydrophilising agent(s) and 0.05-1.5 parts by weight of one or more retarding agent(s) formed with one or more identical or different solvent(s) completely or partly and applying the solution(s) thus obtained simultaneously or in succession onto an inert carrier, drying and sieving the product thus obtained and subsequently admixing  the same with suitable conventional auxiliary agents and compressing the mixture thus obtained to tablets in a known manner and coating the tablets or filling the mixture into capsules.      The process of the present invention is suitable for the preparation of both relatively quick and sustained release pharmaceutical compositions.      The   process       is readily feasible  on industrial scale, the absorption of the active ingredient is independent  of  the particle size distribution of the bulk material used as starting material and no segrega-tion takes place during tabletting and encapsulation.
Patent CA-2018466-A1 (CA)
Title: Expandable vaginal electrode
Inventor: MAURER DONALD D
IPC: A61N1/05
Filed: 1990-06-07
Abstract: EXPANDABLE VAGINAL ELECTRODE   ABSTRACT OF THE DISCLOSURE A vaginal electrode (22) adapted to be inserted into  a woman's  vagina  (12)  and used as part  of  a stimulation  system  (27)  to  stimulate  and  constrict muscles surrounding the vagina (12) to prevent the flow of urine through the urethra (18).  The electrode (22) includes a nonconductive sheet of material (32) formed into a diametrically compressible  spiral tending to unwind.  An exterior surface of the sheet (32) contacts the interior vaginal wall after the electrode (22) is inserted  into  a vagina  (12).   Conductive  electrode elements  circumferentially  oriented  on  the  exterior surface  of  the  sheet  (22)  are  thereby  forced  into electrical contact with the vaginal wall.   Leads (28) couple electrical stimulation signals to the electrode elements.
Patent CA-2020652-A1 (CA)
Inventor: VERGE CYRIL A
IPC: H01R11/28
Filed: 1990-07-06
Abstract: A body of elastically deformable insulating material to encapsulate the handle assemblies of battery booster cables. The entire assembly is placed within the body of material therefore leaving no exposed metal surfaces and hence preventing the risk of electrical shock during the use of such cables.
Patent CA-2024532-A1 (CA)
Inventor: JALICS GEORGE
IPC: C08F255/00
Filed: 1990-09-04
Abstract: The subject invention relates to comb polymers having a halobutyl rubber backbone and to techniques for synthesizing such polymers. The comb polymers of this invention can be thermoplastic elastomers. For instance, halobutyl rubbers having sidechains which are derived from vinyl aromatic monomers are thermoplastic elastomers which can be made by a technique of the subject invention. Such thermoplastic elastomers typically have a chlorobutyl rubber backbone and side chains which are comprised of polystyrene. The subject invention more specifically discloses a process for grafting a lithium terminated vinyl aromatic polymer onto a halobutyl rubber which comprises: (1) capping the lithium terminated vinyl aromatic polymer with a diene monomer to produce a lithium terminated diene capped vinyl aromatic polymer, and (2) reacting the lithium terminated diene capped vinyl aromatic polymer with the halobutyl rubber to produce a halobutyl rubber having vinyl aromatic sidechains grafted thereto.
Patent CA-2024849-A1 (CA)
Title: 4-hydroxytetrahydropyran-2-ones and the corresponding dihydroxycarboxylic acid derivatives, salts and esters, process for their preparation, their use as pharmaceuticals, and pharmaceutical preparations and precursors
Inventor: JENDRALLA HEINER
IPC: A61K31/366
Filed: 1990-09-07
Abstract: 4-Hydroxytetrahydropyran-2-ones and the corresponding dihydroxycarboxylic acid derivatives, salts and esters, process for their preparation, their use as pharmaceu-ticals, and pharmaceutical preparations and precursors compounds of the formula I    and the corresponding open-chain dihydroxycarboxylic acids of the formula II    in which X, Y, R1, R2, R3, R4 and R5 have the meanings indicated, and also their pharmacologically tolerable salts with bases and their pharmacologically tolerable esters, processes for the preparation of these compounds, their use as pharmaceuticals and pharmaceutical prepara-tions are described. In addition, compounds of the formula III    in which R1, R2, R3, R4, R5, X and Y have the meanings indicated are described.
Patent CA-2025249-A1 (CA)
Title: Tariff arrangement with secure bidirectional interface
Inventor: LAUMANN HORST
IPC: G01R11/02
Filed: 1990-09-13
Abstract: ABSTRACT OF THE DISCLOSURE        A tariff arrangement which is preferably intended for an electricity meter comprises a microprocessor, a data memory and a bidirectional interface for transfer of data with a read-out device. For the duration of a data transfer operation a timing member is activated and by way of a logic circuit inhibits a predetermined memory region to prevent data from being written thereto. The data which are stored in the memory region, for charging purposes, are therefore protected from unintentional alterations during the data transfer operation, even if the software should have corresponding defects. The function of the timing member and the logic circuit can be checked in a simple manner. Objections in regard to data security during a bidirectional data transfer are accordingly unfounded. The tariff arrangement is therefore calibratable.
Patent CA-2028100-A1 (CA)
Inventor: FIARD JEAN-FRANCOIS
IPC: G11B5/71
Filed: 1990-03-02
Abstract: Oriented composite polyester films comprising on at least one surface a coating for improving the slippery texture thereof, consisting of a grafted polymer comprising a core derived from a sulphonyloxy group polyester and polymer pattern grafts derived from at least one unsaturated ethylene nomoner and at least one unsaturated ethylene organosiloxane. The composite polyester films, according to the invention, are especially suitable for the manufacture of magnetic tapes.
Patent CA-2028449-A1 (CA)
Title: Modular hip joint prosthesis with adjustable anteversion
Inventor: PAXSON ROBERT D
IPC: A61B17/00
Filed: 1990-10-24
Abstract: MODULAR HIP JOINT PROSTHESIS WITH ADJUSTABLE ANTEVERSION              ABSTRACT            The present invention provides a modular hip prosthesis and instrumentation for implanting the same, which has provision for varying the angulation between the stem portion and the trochanteral module portion by provision of connection means between the neck and stem which can be positioned or attached together in a variety of rotational positions.  Variation of the angulation or anteversion is made possible in accordance with the present invention by virtue of the fact that the axis of the connection portion of the stem and neck is angularly offset from the axis of the body of the stem and neck, respectively.  A further aspect of this invention is the provision of instrumentation for formation of a cavity for implantation of a prosthesis of this invention which is provided with indication means for indicating to the surgeon the optimum angle for assembly of the prosthesis of invention for implantation into a particular proximal femur.
Patent CA-2028664-A1 (CA)
Title: Apparatus and process for electrolytic covering of a metal band
Inventor: COLIN GERARD
IPC: C25D7/06
Filed: 1990-10-26
Abstract: The apparatus comprises a set of cells (25a, 25b) of radial type. The electrical supply to the strip (16) to be coated forming the cathode is ensured by means of two electrically conductive diverting rollers (20) mounted so that each rotates around an axis parallel to the axis of the drum (8) of the electrolysis cell. The diverting rollers (20) are arranged at these partially below the upper level of the drum (8), near its outer surface. Two supporting rollers (21a, 21b) associated with each of the diverting rollers ensure that the strip is supported against the diverting roller over a substantial part of its periphery and as far as a region close to the part of the outer surface of the drum (8) which is immersed in the electrolyte liquid (2). The invention applies in particular to the zinc electroplating of a steel sheet. 
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Patent CA-2031822-A1 (CA)
Title: Pollution abatement system
Inventor: KELLER II GEORGE E
IPC: B01D53/34
Filed: 1990-12-07
Abstract: Abstract Of The Disclosure A process that deals with the sick building syndrome and building related illnesses, and solves volatile organic compound and biological pollutionproblems associated with large confined areas through which forced air is circulated, and the area is utilized for sociatary functions or activities, e.g,habitation by animals and/or equipment or other materials sensitive to pollutants or contaminants utilized in a societary activity within such areas, which comprises treating the circulating air in an air treatment zone (i) with ozone in a depollution catalytic zone removed from contact with humans and/or the sensitive equipment to remove pollutants and contaminants from the air, and thereafter, (ii) the treated air is treated to remove ozone before being returned to the cycle flow within the confined area located outside of theair treatment zone.
Patent CA-2034022-A1 (CA)
Inventor: FOCKE HEINZ
IPC: B31B50/62
Filed: 1991-01-11
Abstract: Cigarette packs (20) are often provided with a (tax) label (26) which extends across an end face (23) and adjoining pack faces. The process of attaching the label (26) has to be integrated into the complex flow of production. For this purpose, the label (26) is held ready in front of a mouth-piece opening (inserting opening 32) in a transverse plane, such that the label is folded round the pack (20) in a U-shaped manner when the pack passes through the mouthpiece opening. The packs (20) are transported in tight arrangement, such that the end face (23) of one pack (20) abuts the bottom (35) face of another pack (20) being in front.      The label (26) is thus "clamped" between two adjacent packs (20) and therewith additionally fixed in position. The labels (26) are introduced into the continuous feed flow of the packs (20) and of the pack channels (31) for receiving the packs via a stationary label dispenser (84), such that the labels (26) are held ready in front of the inserting opening (32) of a pack channel (31) and are folded in a U-shaped manner by the insertion of the pack (20) into the pack channel.
Patent CA-2036807-A1 (CA)
Inventor: BENDE WOLFGANG
IPC: B60C11/01
Filed: 1991-02-21
Abstract: TITLE OF THE INVENTION: MOTORCYCLE TIRE HAVING CURVED, SWEPT-BACK PROFILED TREAD GROOVES A motorcycle tire having a tread with a central zenith portion and edge portions is provided. The tread has curved, swept-back profiled grooves that in the zenith portion extend at a smaller angle to a circumferential direction of the tire than they do in the edge portions. The profiled grooves are disposed in respective right hand and left hand portions of the tread, with first, non-adjacent ones of the profiled grooves of a given tread portion being interconnected by connecting grooves, which are disposed in the zenith portion, to form inclined U-shaped grooves. Second ones of the profiled grooves are disposed in each of the U-shaped grooves, whereby these second profiled grooves are isolated from all other grooves. The U-shaped grooves of the left hand tread portion are offset from the U-shaped grooves of the right hand tread portion in the circumferential direction of the tire, and all of the grooves of the left hand tread portion are isolated from the grooves of the right hand tread portion.
Patent CA-2037210-A1 (CA)
Title: Disposable feminine guard
Inventor: ROLLINS NEAL A
IPC: A61F13/15
Filed: 1991-02-27
Abstract: ABSTRACT OF THE DISCLOSURE            A feminine guard product capable of absorbing urine applied to said product in relatively small amounts at a relatively low velocity or in relatively large amounts at a relatively high velocity and menses. The feminine guard comprises an outer shell which defines a basin having a volume, an absorbent structure present in said basin, an acquisition layer comprising hydrophilic fibers and present in said basin, and a body side liner having a passage volume of 40 percent and being attached to the outer shell and covering the basin.
Patent CA-2037912-A1 (CA)
Title: Positive coefficient thin-film thermistor
Inventor: NAKAJIMA SHIGEAKI
IPC: H01C7/02
Filed: 1990-05-10
Abstract: A B S T R A C T     A positive coefficient thin-film thermistor which comprises a thin film exhibiting a PTC characteristic and having a thickness of 0.005 to 5 µ m and electrodes as constituting elements, and wherein the thin film is composed of a barium titanate based composition and the PTC characteristic is represented by a resistnace variation in transition region of 1 - 10 orders of magnitude and a maximum resistance temperature variation rate of 1 - 20 order/ °C.
Patent CA-2038960-A1 (CA)
Title: Circuit element with elimination of kink effect
Inventor: COLINGE JEAN PIERRE
IPC: H01L29/786
Filed: 1991-03-25
Abstract: ABSTRACT            A circuit element has a source region of a first con-ductance type, a first gate region portion of a conductance type opposed to the first conductance type, an intermediate region of the first conductance type, a second gate region portion of the second conductance type, and a drain region of the first conduc-tance type.  The source region is provided with a cource terminal, the first gate region has a first gate terminal, the second gate region has a second gate terminal conductively connected to the first gate terminal and the drain region is provided with a drain terminal.  The invention avoids the so-called KINK effect that occurs in MOSFETs at very low temperatures.
Patent CA-2040824-A1 (CA)
Title: Method of and apparatus for carrying out logging with undergrowth preservation
Inventor: KHARITONOV VALENTIN A
IPC: A01G23/00
Filed: 1991-04-19
Abstract: METHOD OF AND APPARATUS FOR CARRYING OUT LOGGING               WITH UNDERGROWTH PRESERVATION                          Abstract A method of carrying out logging with undergrowth preser-vation comprises the steps of moving the apparatus for carry-ing out logging with a space horizontal supporting structure from the processed logging  parcel to a next one while simul-taneously topping off the trees, disbarking the tree trunk with simultaneous limbing, gripping the barkless stem at its upper part, sawing down the tree, and transporting the timber thus obtained towards a suitable accumulator.    The apparatus for implementing the method as described above comprises a self-propelled frame, supports, a space ho-rizontal supporting structure mounted with the help of said supports on said frame, a transporting means located on said space horizontal supporting structure, a  means for topping off the trees whose tops extend above the lower level of said space horizontal supporting structure, a disbarking means, a means for gripping the peeled tree trunk, a sawing down means, a manipulator, and an accumulator intended to store the ob-tained timber.
Patent CA-2041906-A1 (CA)
Inventor: DAVID FRANCIS
IPC: F21V29/505
Filed: 1991-05-07
Abstract: Device comprising a light bulb positioned inside a reflector made of a transparent material with a selectively reflective surface (4) capable of reflecting the visible radiation generated by the bulb (2) whilst at the same time allowing heat radiation to pass through it, whereas on the outer side of this reflector there is a reflective surface (6, 8) for the heat radiation passing through the reflector (1), the device being characterised in that the reflective surface (8) for the heat radiation is formed on a backing piece positioned on the outside of the reflector. 
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Patent CA-2043988-A1 (CA)
Title: Jewelry storage case
Inventor: KUNISCH HANS P
IPC: A45C13/02
Filed: 1991-06-06
Abstract: ABSTRACT OF THE DISCLOSURE      A jewelry case capable of holding large and/or small jewelry in an organized manner.  The base receptacle is provided with at least one upwardly extending wall which forms a closed area for holding jewelry.
Patent CA-2045062-A1 (CA)
Title: Pressure assisted apex seal with stepped slot
Inventor: LOUTER JONATHAN M
IPC: F01C19/04
Filed: 1991-06-21
Abstract: PRESSURE ASSISTED APEX SEAL WITH STEPPED SLOT          Abstract of the Disclosure A rotary internal combustion engine includes a rotor with apex seals installed in slots which extend axially through apexes of the rotor.  Each slot has stepped side walls which define an inner narrower slot portion and an outer wider slot portion.  The portion are joined by a pair of outwardly facing ledges on both sides of the slot.  Each apex seal has a outer head which includes a pair of overhanging or cantilevered lips.  The width of the overhang is slightly larger than the width of the ledges so that seal-slot contact is made near the outer seal tip.
Patent CA-2048128-A1 (CA)
Title: Deinking method and deinking composition
Inventor: ISHIBASHI YOICHI
IPC: D21C5/02
Filed: 1991-07-30
Abstract: Abstract of the Disclosure A deinking agent having an excellent ability to remove ink and a good workability is disclosed.  A deinked pulp having a high b value and contaminated with substantially no unliberated ink can be obtained either by the flotation method, the washing method or a compromise procedure thereof.  The deink-ing agent comprises a mixture of higher fatty acids having 8 to 24 carbon atoms or salts thereof, wherein the average carbon atom number of fatty acids in the mixture ranges from 12.7 to 22.5, the content of higher fatty acids having 20 to 24 carbon atoms or salts thereof ranges from 9.6 to 70.6% by weight and the iodine value (IV) is not more than 45, as an essential component.          The deinking agent may further contain an alkylene oxide adduct of an alcohol, a carboxylic acid or a mixture of natural oil and polyhydric alcohol or a sulfate of the adduct.
Patent CA-2048913-A1 (CA)
IPC: F02M69/04
Filed: 1991-08-09
Abstract: In an internal combustion engine comprising a valve operating system connected to a pair of intake valves and arranged to open one of the intake valves only in a very small amount such that the one intake valve is brought into its substantially inoperative state, in a suction stroke mainly in a low speed rotation region of the engine, a fuel injection valve capable of injecting fuel toward a pair of intake ports independently corresponding to the intake valves, and a control means for controlling the operation of the fuel injection valve, the control means is arranged to control the fuel injection valve with a fuel injection completion time determined within a suction stroke, when one of the intake valves is substantially inoperative state. This ensures that when one of the intake valves has been brought into its substantially inoperative state, the injection of fuel by the fuel injection valve can be completed when in the suction stroke. so that the injected fuel can been sequentially introduced into a combustion chamber in a condition of the other intake valve being open, thereby achieving an axially stratified air charge to provide an improved combustibility.