baber/WOPTO huggingface dataset:
Patent CA-2018009-A1 (CA)
Title: Defect-rich crystalline (metallo) silicates and process for preparing such (metallo) silicates
Inventor: KEIJSPER JOHANNES J
IPC: B01J29/86
Filed: 1990-05-31
Abstract: A B S T R A C T            DEFECT-RICH CRYSTALLINE (METALLO)SILICATES AND PROCESS FOR PREPARING SUCH (METALLO)SILICATES      Crystalline microporous (metallo)silicates having a maximum M/Si molar ratio of 0.03, wherein M represents at least one of Al, Fe, B, Ga, or Ti, containing less than 1%wt of organic template (originated) material and having a Relative Defect Retention (RDR)-value of 0.1-1, wherein the RDR-value is defined as (C -C*)/(i - C*), wherein C represents the percentage of defects present, C* represents the percentage of defects retained when subjecting the corresponding at least 1 %wt of organic template (originated) material containing crystalline (metallo)silicate to a standard calcination treatment in air at a temperature of 550 °C for a period of 4 hours, wherein i represents the percentage of defects initially present in the uncalcined corresponding organic template containing (metallo)silicate, and wherein i>C*. Such (metallo)silicates are prepared by subjecting the uncalcined corresponding organic template containing (metallo)silicate to a heat treatment which is carried out in the presence of oxygen at a temperature of 400-600 °C and a pressure of at most 500 mbar for at least 1 hour.
Patent CA-2018754-A1 (CA)
Title: Method of drilling and lining a borehole
Inventor: STEWART ROBERT B
IPC: E21B33/138
Filed: 1990-06-12
Abstract: METHOD OF DRILLING AND LINING A BOREHOLE        A method of drilling and lining a borehole comprises the steps of drilling a borehole while a drilling fluid is circulated through the bores of a multibore drill pipe string and an over-retarded cement slurry is kept substantially stationary in a pipe-formation annulus surrounding said string, whereupon after retrieval of the drilling assembly from the borehole the cement is allowed to set to an annular lining of solid cement alongside the borehole wall. (Fig. 3)
Patent CA-2021632-A1 (CA)
Inventor: WALKUP ROBERT E
IPC: C07H13/08
Filed: 1990-07-16
Abstract: A process for the chlorination of sucrose-6-esters to produce 6',4,1'-trichlorosucrose-6-esters which comprises the steps of: (a) adding at least seven molar equivalents of an acid chloride to a reaction mixture containing a sucrose-6-ester and a tertiary amide to form initially a chloroformiminium chloride salt which subsequently forms a complex with the hydroxyl goups of the sucrose-6-ester; (b) subjecting the reaction mixture product of step (a) to an elevated temperature not higher than about 85°C for a period of time sufficient to produce a mixture of chlorinated sucrose-6-ester products consisting essentially of 6'-chlorosucrose-6-ester, 4,6'-dichloro-sucrose-6-ester, and 1',6'-dichlorosucrose-6-ester; and (c) subjecting the reaction mixture product of step (b) to an elevated temperature not higher than about 125°C for a period of time sufficient to produce a chlorinated product consisting essentially of 1',4,6'-trichlorosucrose-6-ester.
Patent CA-2022384-A1 (CA)
Inventor: PANSTER PETER
IPC: B01J20/22
Filed: 1990-07-31
Abstract: The invention relates to an organosiloxane copolycondensate comprising <IMAGE>  where R<1> - R<5> = <IMAGE> in which  R<6> is C1-C10-alkylene, C5-C8-cycloalkylene or <IMAGE> which is bonded directly to N or X, where X = <2bL>NH-, <2bL>N-CH3, <2bL>N-C2H5, -S-, -S2-, -S3-, -S4-, <2bL>P-C6H5, <IMAGE> where R" is H or C1-C5-alkyl, which has optionally been crosslinked by means of Si-, Ti-, Zr- and/or Al-containing crosslinking agents, in the form of spherical particles having a diameter of from 0.01 to 3.0 mm, a specific surface area of from 0 to 1000 m<2>/g, a specific pore volume of from 0 to 6.0 ml/g and a bulk density of from 50 to 1000 g/l. The invention furthermore relates to various preparation processes for the shaped copolycondensates, and to the use of certain compositions in each case for removing metals from solutions or for adsorption of gaseous organic compounds and/or steam.
Patent CA-2023886-A1 (CA)
Title: Cutting machine guard apparatus
Inventor: MORTON PAUL R
IPC: B27B17/00
Filed: 1990-08-23
Abstract: A B S T R A C T       A chain saw quard has a casing (10) for locating a main body port of a chain saw.  From one end wall (20) of the casing (10) there extends a closed  housing (28) profiled to receive a blade part of the saw.   A lever clamp (30) is associated with the blade within the housing (28) by means of a clamping pad locating through an opening (42) and engaging the saw blade against an internal abutment pad.  On one side wall (15) of the casing (10) there is provided ducting (18) wherein is mounted an electric fan (58) to withdraw exhaust gases from the chain saw for direction as required to a remote location.  Running of the chain saw for Lesting purposes after servicing or repair can be carried out in total safety.
Patent CA-2023887-A1 (CA)
Title: Transfer and dispensing device
Inventor: ROHRBOUGH JOHN
IPC: A61J1/20
Filed: 1990-08-23
Abstract: ABSTRACT          A transfer and dispensing device comprising opposed separable  first  and  second  spikes,  each  having  an  outer pointed end and an inner attachment end, a fluid  low bore extending through each spike from its  inner  end  to  its  outer  end,  and  a  separate airway extending through each spike from its outer and toward its inner  end  and  terminating  in  an  air port remote from its outer  end  and  spaced from  its  inner  end,  each  airway containing a flow restriction formation permitting,  in use, controlled flow of air therethrough while preventing flow of liquid therethrough, the  first  spike  inner  end  having  a  luer  lock connection  formation  communicating  with  its  bore  and  the second  spike  inner  and  having  a  counterpart  luer  lock connection  formation  communicating with  its  bore,the  two connection formations enabling the releasable interconnection of the inner ends of the spikes to flow connect their bores in fluid tight condition to permit a liquid to flow from the outer end of one spike to the outer end of the other spike via the f low connected bores;and a limiting means on each spike to limit, in use, the extent of penetration of: their outer ends through penetrable seals closing respective vials to be connected to the opposed outer ends of the respective spikes.
Patent CA-2024148-A1 (CA)
Title: Medical three-dimensional locating apparatus
Inventor: OTA KOSUKE
IPC: A61B19/00
Filed: 1990-08-28
Abstract: A medical three-dimensional locating apparatus includes an arm unit comprising a first arm pivotally supported for turning about a first axis, a second arm pivotally supported on the first arm for tuning about a second axis perpendicular to the first axis, and an indicating unit or an echo probe held on the second arm so as to be moved toward and away from the intersection point of the first and second axes.  A support unit supports the arm unit, and position detectors are provided for detecting the position of the intersection point of the first and second axes and the position of the tip of the indicating unit or the like relative to the intersection point.  The medical three-dimensional locating apparatus is capable of accurately reproducing the three-dimensional position data of a focus obtained through imaging diagnosis in the affected part for an actual surgical operation and readily selecting an optimum approach angle, namely, and angle of a direction to approach the focus to a reference line, through a simple operation.
Patent CA-2024312-A1 (CA)
Title: Radiation-sensitive positive resist composition
Inventor: OSAKI HARUYOSHI
IPC: G03F7/022
Filed: 1990-08-30
Abstract: ABSTRACT OF THE DISCLOSURE     A positive resist composition which comprises a 1,2-quinone diazide compound and an alkali-soluble resin containing a polyphenol compound (I) of the general formula:                                       (I) wherein R is a C1-C5 alkyl group or a C1-C5 alkoxy group, and n is a number of 0 to 3, which has good sensitivity, improved resolution and heat resistance.
Patent CA-2026033-A1 (CA)
Title: Process for the preparation of heat curable flexible molded polyurethane foams
Inventor: BROCK MARTIN
IPC: C08G18/00
Filed: 1990-09-24
Abstract: PROCESS FOR THE PREPARATION OF HEAT CURABLE      FLEXIBLE MOLDED POLYURETHANE FOAMS               ABSTRACT OF THE DISCLOSURE         The present invention relates to a process for the preparation of heat curable flexible molded polyurethane foams comprising reacting in a closed mold (a) polyisocyanates of the diphenylmethane diisocyanate type containing no more than 80% by weight of monomeric diphenylmethane diisocyanate as the 4,4'-isomer, with (b) compounds containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight of from 400 to about 10,000, and, optionally, (c) chain lengthening and/or crosslinking agents containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight of from 32 to 399, in the presence of (d) water as blowing agent.
Patent CA-2027855-A1 (CA)
Title: Apparatus and method for registration control of assembled components
Inventor: WEYENBERG STEVEN L
IPC: G05B19/418
Filed: 1990-10-17
Abstract: Registration inspection of composite products during the fabrication of a series of such products is accomplished by making a two-dimensional image of a product and analyzing the image to determine the location of at least one component in the machine direction and the location of at least one component in the transverse direction. The thus determined locations are compared to the desired locations for the respective components in the composite article, and feedback control signals are utilized to adjust the fabrication process so that the components will be at the desired locations in subsequent products. When a component is outside of its acceptable position, the article can be removed from the fabrication line without further processing. The invention is particularly useful with fabrication lines for the production of absorbent articles, such as disposable diapers, incontinence devices, sanitary napkins, and the like.
Patent CA-2029965-A1 (CA)
Title: Stabilization and maintenance of the nerve growth factor biological activity by use of natural gangliosides or derivatives thereof
Inventor: VALLE FRANCESCO D
IPC: A61P25/28
Filed: 1990-11-14
Abstract: ABSTRACT OF THE DISCLOSURE          New complex compounds are provided herein. Such compounds are biologically active complex compounds between the proteins and gangliosides, namely, stable and biologically active complexes between the .beta. subunit of Nerve Growth Factor (BNGF) and natural gangliosides or their semisynthetic analogues such as carboxy esters and amides. In addition, pharmaceutical compositions containing such complexes, their therapeutic uses and a process for their manufacture are also provided.
Patent CA-2030743-A1 (CA)
Title: Method to reduce movement of a cpf device via a drag-reducing fluid tamp
Inventor: HUNT WILLIAM C III
IPC: C09K8/62
Filed: 1990-11-23
Abstract: ABSTRACT    A method for minimizing damage to downhole equipment utilized in controlled pulse fracturing (CPF) where a drag reducing fluid tamp is used.  Said tamp has a viscosity sufficient to reduce the flowing pressure drop thereby diminishing frictional forces along fluid/solid interfaces.  The CPF device is submersed in said tamp.  Upon ignition of a CPF device, the upwardly traveling pressure forces the tamp of drag-reducing characteristics to pass the downhole equipment thereby minimizing tool and equipment damage.  Afterwards, the pressure is allowed to leak off slowly into the formation.
Patent CA-2031798-A1 (CA)
Title: Process and apparatus for forming the edge of containers of synthetic thermoplastic material
Inventor: PADOVANI PIETRO
IPC: B29D/
Filed: 1990-12-07
Abstract: ABSTRACT             PROCESS AND APPARATUS FOR FORMING THE EDGE OF CONTAINERS OF SYNTHETIC THERMOPLASTIC MATERIAL           A process and apparatus for forming the edge of containers of synthetic thermoplastic material which are open at the top and terminate in an outer upwardly arched and downwardly extending flange comprises the following stages, which can be repeated cyclicly:          feeding   from   one   or   more   stacks   of containers; heating the flanges;  removal of at least the  top container on each stack from the remainder; transfer of the top containers;  positioning of these within a female mould; forming and final stabilisation of  the edges by closing the male and female mould; expulsion of the edged containers from the female mould into a stacking channel; cooling of the female moulds before other containers for edging are placed in them, and in  which  the  first  four  stages  can  be separated from the others and continue in operation even when the others are stopped so that containers with a heated flange which is not subjected to edging can be recovered.
Patent CA-2033277-A1 (CA)
Title: Controlled release pharmaceutical preparation and method for producing the same
Inventor: NODA KAZUO
IPC: A61K9/50
Filed: 1990-12-27
Abstract: A controlled release pharmaceutical preparation comprising (a) a core containing a pharmaceutically active substance and an organic acid, and (b) a coating film formed on the surface of the core by aqueous coating of a water-insoluble and slightly water-permeable acrylic polymer containing a trimethylammonium-ethyl group, which exhibits well controlled dissolution and release of the pharmaceutically active substance when administered and can maintain the desired blood level of the active substance for a long period of time, and a method for producing the preparation.
Patent CA-2034976-A1 (CA)
Title: Process for producing thin films and color filters
Inventor: HARIMA YUTAKA
IPC: B05D1/18
Filed: 1991-01-25
Abstract: ABSTRACT OF THE DISCLOSURE   Disclosed is a process for producing thin films, which comprises dispersing or dissolving inorganic substance or hydrophobic organic substance in an aqueous medium in the presence of a surfactant having HLB value of 10 to 20, to obtain micelle solution or dispersion, dipping a semiconductive or photoconductive substrate into said micelle solution or dispersion, applying an electric potential on said substrate if necessary, and irradiating lights on the contact interface of said mecelle solution or dispersion and said substrate, and thus forming thin films of said inorganic substance or hydrophobic inorganic substance on said substrate.    Also disclosed is a process for producing color filters having excellent properties, which comprises forming color separation filter on the substrate according to the above-mentioned process, by the use of pigments or dyes in three primary colors of red, green, and blue.
Patent CA-2042853-A1 (CA)
Title: Oxygen extraction from externally fired gas turbines
Inventor: CHEN MICHAEL S
IPC: C01B13/02
Filed: 1991-05-17
Abstract: ABSTRACT   A process is provided for recovering oxygen from an externally fired power generating gas turbine system in which a hot  compressed air stream from a compressor to be expanded through a turbine expander to generate power is first passed over the feed side of a solid electrolyte membrane selective to the permeation of oxygen over other components of the air while a positive oxygen ionic potential is maintained on the membrane to separate oxygen from the stream  and removing the oxygen from the permeate side of the membrane before the residual air is expanded through the turbine expander to generate power.
Patent CA-2043455-A1 (CA)
Title: Hydroxyalkylation of phenols or thiophenols with cyclic organic carbonates using triorganophosphine catalysts
Inventor: DRESSLER HANS
IPC: C07B45/06
Filed: 1991-05-29
Abstract: This invention relates to the use of triorganophosphine compounds as catalyst for the reaction of phenols or thiophenols with cyclic organic carbonates.
Patent CA-2044851-A1 (CA)
Title: Heat responsive fire extinguishing system
Inventor: LAYE DOUGLAS G
IPC: A62C37/08
Filed: 1991-06-18
Abstract: ABSTRACT OF THE DISCLOSURE     The  invention  relates  to  a  heat  responsive  valve arrangement  for  a  fire  extinguisher,  the  valve  being positioned between the siphon tube and the hand valve of a conventional fire extinguisher.  The valve comprises a body portion having a central bore through which a flow of fire extinguishing substance may pass when the extinguisher is operated in the normal manner.  A secondary discharge tube, the more of which communicates with the central bore of the valve  body,  extends  from  the side  of  the  valve.   That discharge tube carries a nozzle, the discharge orifice of which is closed by a cap held in place with a fusable metal alloy.   The  tube  is  such  that  it  can  be  directionally orientated to position the nozzle towards a location where a fire may occur.  When subjected to the heat of a fire, the  fusable  alloy  will  melt,  releasing  the  cap  and permitting  a flow  of  fire  extinguishing  substance to be discharged to the source of the fire, thereby extinguishing same.
Patent CA-2047079-A1 (CA)
IPC: A42B3/22
Filed: 1991-07-15
Abstract: In a helmet shield system, a shield plate is comprised of a shield body covering a window opening in a front surface of a cap body, and an end plate pivotally mounted on the cap body, the shield body and the end plate being coupled to each other by eyelets. A click stop mechanism is provided between the end plate and a base plate fixed to the cap body, and a cover is secured to cover the end plate. In this case, the shield body is formed from any of a polycarbonate, an acrylic resin, and a polyvinyl chloride, and the end plate is formed from any of a polyacetal, nylon and ABS. This provide a good view through the shield plate with a high transparence and an increased durability of the click stop mechanism which retains the shield plate at a desired opening degree.
Patent CA-2049031-A1 (CA)
Title: Intumescent fire-retardant coating material
Inventor: HASTINGS OTIS H
IPC: C09D5/18
Filed: 1990-03-09
Abstract: A fire-retardant coating material is provided herein for various uses, e.g.  for coating housing and building frames to render them highly fire resistant, or for coating commercial structures to tender them highly fire resistant, or for coating interior finished surfaces of homes, buildings, vehicles, or elevators, and to fabrics to render them highly fire resistant. Such composition includes a fluid intumescent base material having a foaming agent, a blowing agent, a charring agent, a film-forming binder, and a solvent, and a refractory fibrous material dispersed in the intumescent material. Such refractory fibrous material may have short fibres with a bulk length of 1/32" to 1", and/or long fibres with a bulk length of at least 1", and/or milled fibres with a bulk length of 2 to 35 microns. The refractory fibrous material consists of aluminum oxide (Al2O3) in the range of 40% to 55% by weight, silicon dioxide (SiO2) in the range of 40% to 55% by weight, and at least one compound which is either ferric oxide (Fe2O3), titanium dioxide (TiO2), potassium oxide (KO2), sodium oxide (Na2O), or zirconium oxide (ZrO2), the amount of such compounds being in the range of 0.1 % to 5.0 % by weight.
Patent CA-2049377-A1 (CA)
Title: Biocompatible body implant having a textured surface
Inventor: HILLEGASS DONALD V
IPC: A61F2/12
Filed: 1991-08-16
Abstract: ABSTRACT OF THE DISCLOSURE          A soft flexible polymeric biocompatible device is provided for non-cardiovascular reconstruction, augmentation, or indwelling tissue expansion.  The polymeric implant has a three dimensional textured polymer membrane surface of controlled porosity and thickness with randomly distributed interconnecting cells having cell sizes of about 90-500 microns.
Patent CA-2049703-A1 (CA)
IPC: E06B3/66
Filed: 1991-08-22
Abstract: An insulating unit is disclosed having a pair of glass sheets about an edge assembly to provide a compartment between the sheets. The edge assembly has a U-shaped spacer made of metal, metal coated plastic, gas and moisture impervious polymer, or gas and moisture impervious film coated polymer. The outer legs of the spacer and the glass provide a long diffusion path to limit the diffusion of argon gas out of the compartment. The edge assembly has materials selected and sized to provide edge assembly having an RES-value of at least 75. Also disclosed is a spacer for use in insulating units including a plastic core having a gas impervious film e.g. a metal film or a halogenated polymer film. Also taught herein are techniques for making the unit and spacer. The unit has a long diffusion path to increase the time period in which insulating glass e.g. Argon gas may be retained in the compartment. The increased RES-value provides a unit that has a low thermal conducting edge. In this manner heat loss through the marginal edge of the unit is reduced.
Patent CA-2050297-A1 (CA)
Title: Method and device for creating a facsimile of an image
Inventor: PERRY SCOTT M
IPC: H04N7/18
Filed: 1991-01-07
Abstract: A method and device are set forth for perceiving a field of images (10, 12, 14), selecting one or several images (14), from the field and for creating a facsimile (22a) for each of the selected images. The facsimile may be transparent having light projected therethrough to illuminate the selected images. Also set forth are means for recreating a color image.
Patent CA-2052336-A1 (CA)
Inventor: DERBY NORWIN C
IPC: B65B31/04
Filed: 1991-09-27
Abstract: FULL SACK COMPRESSOR     ABSTRACT       A full  sack compressor  for deaerating  flowable material includes a hollow, rectangular chamber connected to a vacuum pump for establishing a vacuum when filled with flowable  material,  causing  the  flowable material  to deaerate and subsequently compact when atmospheric pressure is restored.
Patent CA-2054567-A1 (CA)
Title: Telephone network credit card calling apparatus and method of operation
Inventor: AHEARN KATHLEEN M
IPC: H04M15/00
Filed: 1991-10-30
Abstract: Apparatus and method of controlling a telephone network to establish connections between calling and called telephone stations in accordance with dialed telephone numbers identified by calling party credit cards. The apparatus responds to the receipt of a telephone number and a credit card number from a calling telephone by identifying a company having issued the credit card assigned the received credit card number. A data link connection is established with a data base maintained by the identified company and the received credit card number is transmitted to the identified company during the call sequence for a determination of the validity of the received credit card number. The apparatus controls the telephone network to establish a network connection between the calling telephone and a telephone identified by the called telephone number upon receiving validation of the validity of the credit card and to establish a network connection between the calling telephone and an announcement circuit stating that the identified credit card cannot be used for telephone calls upon receiving non-validation of the credit card or upon identifying the credit card as fraudulent.