baber/WOPTO huggingface dataset:
Patent CA-2022583-A1 (CA)
Title: Solid crystalline phosphoric acid hydrocarbon conversion catalyst
Inventor: CHAO TAI-HSIANG
IPC: C07C2/70
Filed: 1990-08-02
Abstract: A solid crystalline phosphoric acid catalyst comprising crystallites of both silicon orthophosphate and silicon pyrophosphate and having a total X-ray intensity of at least 30 percent relative to alpha-alumina is disclosed. The solid crystalline phosphoric acid catalyst is produced by crystallizing an amorphous mixture of an acid oxide of phosphorus and a siliceous material at a temperature of from 250 to 450°C and in the presence of from 3 to 50 molepercent water vapor based upon the total vapor rate to the crystallizing step. The catalyst is particularly useful in extending the life of a hydrocarbon conversion reaction such as olefin polymerization before catalyst replacement or regeneration becomes necessary.
Patent CA-2025626-A1 (CA)
Inventor: GOLDBERG JAY R
IPC: A61B19/00
Filed: 1990-09-18
Abstract: ABSTRACT OF THE DISCLOSURE    A biodegradable, biocompatible, resorbable infusion stent comprising a terpolymer of:          (a)  L(-)lactide, (b)  glycolide, and (c)  epsilon-caprolactone.    This invention includes a method for treating ureteral obstructions or impairments by utilizing a biodegradable, biocompatible, resorbable infusion stent, and a method for controlling the speed of resorption of the stent.
Patent CA-2026233-A1 (CA)
Inventor: NOWOTNY KLAUS
IPC: H04M3/42
Filed: 1990-09-26
Abstract: The invention relates to a method for initiating switch-related functions and services by means of keys of telephone stations with a main memory and an alphanumeric display. After a first special key has been pressed, all functions and services are called up in succession and are shown on a display. When a second special key is pressed, the functions or services shown on the display are implemented. <IMAGE>
Patent CA-2027250-A1 (CA)
Title: Removal of heavy metals especially lead from aqueous systems containing competing ions utilizing wide-pored molecular sieves of the ets-10 type
Inventor: KUZNICKI STEPHEN M
IPC: C02F1/62
Filed: 1990-10-10
Abstract: ABSTRACT OF THE DISCLOSURE               A process for the removal of heavy metals such as lead, cadmium, zinc, chromium, arsenic and mercury from aqueous solutions containing one or more of said metals as well as competing ions such as calcium and/or magnesium by contacting said aqueous solution with a crystalline molecular sieve having the X-ray diffraction patterns of ETS-10 or ETAS-10.
Patent CA-2027630-A1 (CA)
Title: Protein gel ophthalmic vehicle
Inventor: CHASTAING GILLES
IPC: A61K9/00
Filed: 1990-10-15
Abstract: The present invention relates to a liquid ophthalmic composition, characterized in that it comprises at least one active principle and a sulphated polysaccharide or sulphated polysaccharide derivative in aqueous solution which undergoes a liquid-gel-phase transition on interaction of the said sulphated polysaccharide or one of its derivatives with the proteins of the lachrymal fluid:      The present invention also relates to a process for preparing the said compositions.
Patent CA-2029897-A1 (CA)
Title: Setting device for tubular bone fractures
Inventor: BAUMGART RAINER
IPC: A61B17/68
Filed: 1990-04-18
Abstract: Setting device for tubular bone fractures Abstract The setting  device for  tubular bone fractures  (3,4) consists of  a longitudinally  extended flattened  setting element  (20) and of bone screws  (10), which in each  case are connected  to one other by means of a screw  (11) and a cone (16) in addition to a taper  segment section (15). The  setting element (20) has an essentially  rectangular cross-section of  tissue-compatible high-density material, in particular of implant steel. In  each of the  two end sections (21)  of the setting  element (20), at least  two  bores  are  provided,  which  extend  through   the opposite  wide sides  thereof. The bone screws  (10) are guided through   these  bores.  The   setting  element  (20)  consists integrally of the two  relatively rigid  end pieces (21) and  a connection  piece  (31)  lying  therebetween.  This  connection piece  (31) is,  in  comparison  with the  end  sections  (21), elastic as its cross-section  is smaller  than that of the  end sections (21). The compact  setting device formed  in this  way can be  implanted under the  skin and enables transverse forces as  well as moments of  flexion and torsion in the  area of the fracture  to be  eliminated, without  the implantation  causing additional   circulatory  disurbances.   Further,  the   normal force    in the fracture area can be adjusted.
Patent CA-2033890-A1 (CA)
Title: Looney stacker
Inventor: SOTTILE ANTOINETTE M
IPC: B65B67/08
Filed: 1991-01-10
Abstract: ABSTRACT     An aid for stacking 25 loonies ($25.00) into an existing paper wrapper.
Patent CA-2033892-A1 (CA)
Title: Polycarbonate cross-linker resin and fire resistant compositions made therefrom
Inventor: ROSENQUIST NILES R
IPC: C08G64/14
Filed: 1991-01-10
Abstract: POLYCARBONATE CROSS-LINKER RESIN AND FIRE    RESISTANT COMPOSITIONS MADE THEREFROM             Abstract of the Disclosure Polycarbonate resins containing at least one divalent chain unit of the formula:          wherein E represents a trivalent hydrocarbon radical, or a trivalent halogen-substituted hydrocarbon radical, are transitory cross-linkers prepared by thermal degradation of the corresponding acid esters (the ester group being removable under conditions of the degradation by a beta-elimination mechanism).  Cross-linked polycarbonate resins exhibit enhanced fire-resistance, especially non-dripping.  The cross-linkers are useful to cross-link any resin having a group reactive with a carboxyl group.                          Niles Richard Rosenquist
Patent CA-2034122-A1 (CA)
Title: Laminating machine particularly for through-sawing slabs made of granite and the like
Inventor: PEDRINI LUIGI
IPC: B28D1/00
Filed: 1991-01-14
Abstract: LAMINATING  MACHINE  PARTICULARLY FOR  THROUGH-SAWING  SLABS        MADE OF GRANITE AND THE LIKE               ABSTRACT OF THE DISCLOSURE The laminating machine for through-sawing slabs of granite and the like, comprises a table which bears a supporting platform on which a conveyor belt for slabs of granite or the like is mounted. The table furthermore supports a train of diamond disks with progressively increasing diameters, each of which is individually motorized. The train of disks is arranged parallel to the supporting platform. The train of disks and the supporting platform are arranged on a plane which is inclined at an acute angle with respect to a horizontal plane.
Patent CA-2039287-A1 (CA)
Inventor: RAPPOLD KURT
IPC: C08J9/20
Filed: 1991-03-27
Abstract: O.Z. 0050/41506 Abstract of the Disclosure:  Expandable styrene polymers having a particle diameter of from 0.025 to 0.3 mm and coated with 0.5% by weight or more of a finely divided solid having a melting point above 120°C are used as a heat-insulating filler for lightweight plaster.
Patent CA-2040340-A1 (CA)
Title: Thermoplastic end seal for electric heating elements
Inventor: WILLBANKS HENRY O
IPC: H05B3/48
Filed: 1991-04-12
Abstract: An electric heating device is disclosed which comprises a generally tubular sheath, an elongated coil of electrical resistance heating wire passing through a portion of the sheath, and a metal terminal at each end of the sheath.          The interior of the sheath is filled with a granular heat conducting, electrically insulating material, and the sheath is sealed at at least one end with a thermoplastic material having a melting temperature in the range of the temperature of the terminal when the heating device is in heated condition. The thermoplastic material must be substantially permeable to gases while melted and substantially impermeable to gases while solid.  The use of such a seal enables the heating element to consume oxygen in a normal manner while hot, but will prevent the entry of moisture into the element while the element is cool and the seal is in a solid condition.
Patent CA-2045790-A1 (CA)
Title: Branch prediction in high-performance processor
Inventor: SITES RICHARD L
IPC: G06F9/38
Filed: 1991-06-27
Abstract: BRANCH PREDICTION IN HIGH-PERFORMANCE PROCESSOR            ABSTRACT OF THE DISCLOSURE     A high-performance CPU of the RISC (reduced instruction set) type employs a standardized, fixed instruction size, and permits only simplified memory access data width and addressing modes.  The instruction set is limited to register-to-register operations and register load/store operations.  Byte manipulation instructions, included to permit use of previously-established data structures, include the facility for doing in-register byte extract, insert and masking, along with non-aligned load and store instructions.  The provision of load/locked and store/conditional instructions permits the implementation of atomic byte writes.  By providing a conditional move instruction, many short branches can be eliminated altogether.  A conditional move instruction tests a register and moves a second register to a third if the condition is met; this function can be substituted for short branches and thus maintain the sequentiality of the instruction stream. Performance can be speeded up by predicting the target of a branch and prefetching the new instruction based upon this prediction; a branch prediction rule is followed that requires all forward branches to be predicted not-taken and all backward branches (as is common for loops) to be predicted as taken.  Another performance improvement makes use of unused bits in the standard-sized instruction to provide a hint of the expected target address for jump and jump to subroutine instructions or the like.  The target can thus be prefetched before the actual address has been calculated and placed in a register.  In addition, the unused displacement part of the jump instruction can contain a field to define the actual type of jump, i.e., jump, jump to subroutine, return from subroutine, and thus place a predicted target address in a stack to allow prefetching before the instruction has been executed.  The processor can employ a variable memory page size, so that the entries in a translation buffer for implementing virtual addressing can be optimally used.  A granularity hint is added to the page table entry to define the page size for this entry.  An additional feature is the addition of a prefetch instruction which serves to move a block of data to a faster-access cache in the memory hierarchy before the data block is to be used.            H:\DIGW\054\PA\CLAIMS
Patent CA-2047576-A1 (CA)
Inventor: COLWELL ROBERT A
IPC: F04D25/08
Filed: 1991-07-23
Abstract: A draft inducer blower motor mounting and cooling construction comprising an electric motor including a housing having openings therein and a rotor mounted on a shaft, a fan blade fixed on the shaft and interposed between the motor and the draft inducer blower, and a heat shield interposed between the motor housing and the fan blade. The heat shield is fastened to the electric motor and to the housing of the inducer blower and has portions spaced from the blower housing. The heat shield further preferably includes a portion surrounding at least a part of the motor housing such that rotation of the fan blade draws cooling air through the electrical motor and about the housing of the electric motor and thereafter radially outwardly between the heat shield and the inducer blower housing to cool the electric motor and the shaft end bearing nearest the inducer housing, In another form, the portion surrounding the motor may be eliminated.
Patent CA-2048591-A1 (CA)
Title: Construction of containers
Inventor: KOCH FREDERICK C
IPC: B65D88/00
Filed: 1991-08-07
Abstract: ABSTRACT           The improvements consist of obtaining a container with a rectangular prismatic shape determined by parti-tion walls (1) rigidly joined together by means of respective profiles (2), the partition walls of the top (1a) and of the base (1b) having longitudinal profiles (3) joined alternatively together by means of resistant ties (4), defining in each plane of ties (4) a triangular structural framework that reinforces the structure of the container to prevent the deformation or bulging thereof by internal pressure.      Besides, the container is complemented by cross braces (8) that extend from the top corners to certain points of the base, constituting bending preventive reinforcements of the container.  The partition walls (1) are all trans-versally corrugated.      The container made in accordance with the improvements is foreseen to transport fluid, semi-fluid or granular products, including products that can be later solidified.
Patent CA-2050541-A1 (CA)
Title: Treatment of tar sands tailings
Inventor: BROUGHTON ARTHUR R I
IPC: B03B9/02
Filed: 1991-09-03
Abstract: Abstract Method and apparatus of processing tar sands tailings, sludge from ponds and the like, aqueous mixtures that includes subjecting the mixture to subatmospheric pressure and while so doing causing a vortex to form in the liquid.  The bitumen accumulates in the cavity formed by the vortex and from which it can be withdrawn.  A solvent is  added  to  facilitate  removal  of  the bitumen.    The preferred pressure is 27 to 29 inches of mercury vacuum and a vessel is needed to withstand this.  A cylindrical vessel has an inlet for the aqueous mixture disposed tangential to the vessel and a first outlet on the axis of the vessel for the clarified liquid and a second outlet on the same axis for withdrawing the bitumen.  A vacuum pump and/or columns of liquid are used to maintain subatmospheric pressure conditions in the vessel during operation.   Two or more vessels can be connected in series providing, if desired, continuous flow and a staged series of clarification of the tailings.
Patent CA-2050697-A1 (CA)
Title: Apparatus for the purification of waste water
Inventor: DIJKHORST JACOBUS
IPC: C02F3/34
Filed: 1991-09-05
Abstract: ABSTRACT          An apparatus for the purification of waste water comprises a reservoir including a primary circulation system for the liquid therein, an influent supply and effluent discharge connected to the reservoir, propulsion device for circulating the liquid in the circulation system and an aerator for introducing oxygen into the liquid. The reservoir is equipped with a denitrification space connecting with the remainder of the reservoir through an inlet and outlet. The influent supply connects to the denitrification space. A secondary circulation system is formed within the denitrification space having its own propulsion device.
Patent CA-2051057-A1 (CA)
Title: Blood coagulation time measurement
Inventor: SAITO YUKIO
IPC: G01N33/49
Filed: 1991-09-10
Abstract: ABSTRACT OF THE DISCLOSURE            An apparatus for measuring a blood coagulation time by a measurement of a period from a time of an addition of a coagulation reagent to a sample of blood includes a semiconductor sensor having a negative temperature coefficient and being immersed in the sample of blood in a vessel; an electric power source connected to the semiconductor sensor; a resistor connected in association with the power source; and a detection circuit connected to the output terminals of the semiconductor sensor, for detecting output signals of the semiconductor sensor.     :     , '            , .;     .
Patent CA-2052115-A1 (CA)
Title: Modular handpiece
Inventor: DECKER RICHARD B
IPC: D21H17/35
Filed: 1991-09-24
Abstract: Abstract A modular power-driven knife having an annular rotary blade, the structure of which knife can be varied through choice of standardized, i.e., compatible, components to accommodate different operators and diffetent tasks.  The components include plural e;pmgated handles to accommodate different sized hands; plural headpieces, each having a transmission for driving an annular rotary blade and identical means by which any of the handles are attachable in a first orientation, and each differently constructed to support a replaceable blade housing of predetermined size and construction different from housing supported by other headpiece, including a construction for angling the blade housing and blade relative to the extending handle; adjustable thumb supporting pieces for the handles handle adapters to reposition the handles; pistol grip handles; drive cable casing connectors; and replaceable blade housings securable to the headpieces for supporting replaceable rotary annular blades.  The modular construction is designed to allow adjustment between or among  parts to accommodate different physiologies of users and different modes of use and different tasks for which the assembled knife may be used.  The handles provided for the modular knife are of improved shape that reduces unwanted areas of pressure concentration on the gripping hand while at the same time providing as firm a grip as possible for a given gripping force.  A method of selecting the proper handle size is provided.
Patent CA-2055280-A1 (CA)
Inventor: TRINH DINH C
IPC: C22B3/44
Filed: 1991-11-12
Abstract: BREVET D'INVENTION INSTITUT FRANCAIS DU PETROLE NOUVEAU PROCÉDÉ DE TRAITEMENT ANTIPOLLUTION D'UN CATALYSEUR DE RAFFINAGE A L'ÉTAT US? ET RÉCUPÉRATION TOTALE DES DIFFÉRENTS CONSTITUANTS MÉTALLIQUES DUDIT CATALYSEUR Invention de Messieurs TRINH DINH Chan et ERIC LLIDO On décrit un procédé de traitement antipollution et de la récupération des métaux d'un catalyseur de raffinage à l'état usé renfermant au moins un métal contaminant choisi dans le groupe formé par le vanadium, le nickel et le fer. Le procédé de la présente invention est caractérisé notamment en ce que : a) le catalyseur déchargé de l'unité industrielle est soumis à un strippage ; b) lecatalyseur strippé est calciné dans les conditions critiques ; c) le catalyseur calciné subit un traitement thermique en présence d'une base alcaline à l'état fondu ; d) la masse solide résultante de l'étape c) est traitée par de l'eau. Le procédé s'applique à un traitement antipollution et de la récupération des métaux des catalyseurs usés notamment des catalyseurs d'hydrotraitement ou d'hydroconversion d'une charge pétrolière.
Patent CA-2055503-A1 (CA)
Title: Process for the preparation of l-.alpha.-glycerylphosphorylcholine and of l-.alpha.-glycerylphosphorylethanolamine
Inventor: TRONCONI GIOVANNI
IPC: C07F9/10
Filed: 1990-05-04
Abstract: A process is described for the purification of glycerylphosphorylcholine (GPC) and glycerylphosphorylethanolamine (GPE) from crude deacylated mixtures obtained by deacylation of crude or deoleated soy or egg lecithin or of alcoholic extracts thereof comprising: a) the elution on a cationic resin in acid form equilibrated in anhydrous solvent of the crude solutions from the deacylation step; b) washing of the resin with alcohols or water/alcohols;  c) obtaining of the pure mixture nGPC+mGPE by washing the resin with water; d) separation of nGPC+mGPE mixture by elution on basic resins to give pure GPC and GPE.
Patent CA-2055918-A1 (CA)
Title: Ophtalmological apparatus made up of a polymeric substrate comprising fluorated groups on the surface and preparation process
Inventor: BECHETOILLE ALAIN
IPC: A61L27/18
Filed: 1991-11-20
Abstract: Ophthalmological device, in particular an intraocular lens or implant, comprising a polymeric substrate containing hydrogen atoms and having mechanical qualities traditionally required for this type of device, wherein the hydrogen atoms present on its surface have been replaced by fluorine atoms or CF, CF2 or CF3 groups, the total fluorine representing at least 15% of the atoms present on this surface.
Patent CA-2057459-A1 (CA)
Title: Anti-drip applicator
Inventor: KUHN PETRUS H A N
IPC: B65D51/32
Filed: 1991-12-10
Abstract: ABSTRACT          A dispenser for liquid material, such as shoe polish, comprising a container (1) and an applicator (2) by means of which a small quantity of the material (P) can be removed from the container (1) by dipping and then applied to a surface to be treated with the material (P). In this dispenser the applicator (2) has such a length relative to the height of the container (1) that in the inserted position of the applicator (2) the spongy applicator end (16) is at least partially compressed against the container bottom.  A tube (5) is arranged in the container (1), which tube (5) extends from the mouth of the container (1) down into the vicinity of the bottom thereof. At least the lower end of the tube (5) forms a proper fit for an applicator (2) inserted therein and the space within the tube (5) communicates through at least one passage with the annular container space around the tube (5).          According to the invention, at least one scraping ring (7) for the applicator (2) is arranged at the top of the tube (5).          Provided at least adjacent the outer circumference of the scraping ring (7) are open passages (10) communicating with the annular container space. The tube (5) extends entirely down to the bottom of the container (1) and in the tube wall narrow passages (11) are provided which permit a slow inflow of viscous material (P).   The applicator (2) consists of a cylindrical portion (15) which is only slightly narrower than the tube (5) and a spongy end (16).
Patent CA-2058135-A1 (CA)
Title: Raw sewage disposal apparatus and prefab for accomodating the same
Inventor: KISHI MITSUHIRO
IPC: C02F11/00
Filed: 1991-12-19
Abstract: ABSTRACT OF THE DISCLOSURE A raw sewage disposal apparatus employing a heat-resistant vessel for containing raw sewage, a plurality of stirring blades for stirring the raw sewage in the vessel, a plurality of heat-holding bodies contained in the vessel, an introduction pipe connecting the vessel and a main stool, a closing device provided in the introduction pipe, a urine stool for receiving urine, a urine tank for containing urine, a discharge pipe interposed between the urine tank and the main stool, a valve interposed along the discharge pipe for discharging urine from the urine tank to the main stool, and an air supply for pressurizing the urine tank.  The sewage disposal apparatus is preferably mounted in a prefabricated structure having a base, a hollow side wall portion placed on the base, and a roofed portion placed on the side wall portion to cover the interior thereof.  A lifting body having a pair of struts are fixedly connected to a side surface of the base and extend to the roofed portion along the side surface of the side wall portion, and a plurality of rungs connect the pair of struts.
Patent CA-2058753-A1 (CA)
Title: Thak headwear
Inventor: KALRA ANU
IPC: A42B3/04
Filed: 1992-01-03
Abstract: "THE ABSTRACT"          The "THAK HEADWEAR" are fabric made covers that fit over a Helmet.  The fabrics vary in material from knits to cottons to blends.  The colour varies with pattern and contrast.  The covers are held over the helmet with elastic or stretch stitching or ties.  The designs vary from traditional to modern designs.  The design also adapts at times to act as visors with a peak in the front and having nap covers in the ears and the nape of the neck.  In general it is s cover in the helmet made of fabric.  The covers can be removed easily.