baber/WOPTO huggingface dataset:
Patent CA-2018889-A1 (CA)
Title: Very early setting ultra high early strength cement
Inventor: KUNBARGI HASSAN
IPC: C04B28/06
Filed: 1990-06-13
Abstract: ABSTRACT OF THE DISCLOSURE      Methods for forming very early setting, ultra high strength cements and the cements so produced are claimed.  The methods comprise forming a mixture of raw materials containing SiO2, Al2O3, CaO, Fe2O3, and SO3, respectively designated S, A, C, F, and ? and that the overall molar ratio of A/F exceeds approximately 0.64 and the overall molar ratio of ?/A + F is between approximately 0.35 and 0.25.  This mixture is heated to an elevated temperature between 1,000° C and 1,200° C for a sufficient period of time to produce a clinker amount of C4A3? is then determined and a final mixture is formed utilizing the high C4A3? clinker, C containing hydraulic or portland type cement and soluble C? anhydride to produce a final cement mixture having a C4A3? content of approximately 10% to 30% by weight, a soluble C? anhydride content of approximately 5% to 20% by weight, and the remainder being hydraulic or portland type cement.  The cements so produced exhibit very early, ultra high strength ranging from 3,000 psi to 5,000 psi in one hour, 6,000 psi in one day, and 11,000 psi in 28 days.
Patent CA-2019895-A1 (CA)
IPC: B43K23/00
Filed: 1990-06-26
Abstract: ABSTRACT OF THE DISCLOSURE      A writing implement holder to attach to a surface.  The holder includes a base to be attached to the surface and having an underside and an opening.  There is a recess in the underside surrounding the opening.  A cylinder receives the writing implement and is itself located in the opening in the base.  A flange at one end of the cylinder is received in the recess in the underside of the base.  The upper surface of the cylinder extends inwardly downwardly and is of such a depth that it prevents the writing implement being used to lever the base from the surface.  One plug is received in the writing implement and another plug is received in the base and a cable extends between the two plugs.  Each end of the cable is secured beneath a plug so that the writing implement is attached to the base.  It is desirable that the plug be tightened and loosened by unconventional means.  Accordingly, a tool is also described to engage openings formed in the upper surface of each plug to tighten and loosen the plug.          The holder is pleasing in appearance and cannot be removed except with difficulty and, if vandalized, can be economically serviced without removal from the surface.
Patent CA-2023404-A1 (CA)
Title: Phosphorylated glycosidase inhibitor prodrugs
Inventor: SCUDDER PETER R
IPC: C07F9/59
Filed: 1990-08-16
Abstract: A method is provided for converting therapeutic glycosidase inhibitors to novel prodrugs by phosphorylation of a free hydroxyl group on the molecule to substantially reduce the glycosidase inhibitory activity without thereby substantially reducing the therapeutic activity.
Patent CA-2027894-A1 (CA)
Inventor: SESSIONS ROBERT W
IPC: B29C44/30
Filed: 1990-10-17
Abstract: The present invention is predicated on the discovery of a continuous process for the preparation of a polymer-based foam sheet at ambient temperatures wherein the foam is produced  from  a  reaction  product  capable  of  curing  at ambient temperatures formed by the reaction of a reactant composition comprising a prepolymer, such as an isocysanate-capped  polyether,  and  water  comprising  (a)  providing  a continuous substrate;  (b) depositing said reaction product onto said substrate;  (c) compressing said reaction product by subjecting said product to at least one compression of a predetermined degree after said reaction product has creamed but prior to the time said reaction product has  finally cured;  and (d)  finally curing said reaction product.   An apparatus for the production of the aforesaid foam is also contemplated.
Patent CA-2030341-A1 (CA)
Inventor: NONAKA TAKASHI
IPC: G11B5/41
Filed: 1990-11-20
Abstract: A disk device with a cleaning device and a cleaning method according to the present invention include cleaning motor control means for rotating a disk oppositely to a direction of rotation of the disk in recording and regeneration, and seeking means for forcing a slider to seek the disk over a whole recording region during the opposite rotation of the disk to permit any dust to adhere to the slider, whereby a motor is started and stopped (contract-start-stop) after cleaning the recording region, so as to force the dust adhering to the slider to fall on a disk surface for cleaning the slider.
Patent CA-2030942-A1 (CA)
Inventor: SUGISHIMA NOBORU
IPC: C07C205/46
Filed: 1990-11-27
Abstract: A process for preparation of a 2-substituted-1,4-naphthoquinone which comprises oxidizing a 2-substituted naphthalene to obtain reaction products comprising a 2-substituted-1,4-naphthoquinone and a 6-substituted-1,4-naphthoquinone; adding a diene compound to the reaction products and heating the mixture to form a Diels-Alder reaction adduct between the diene compound and the 6-substituted-1,4-naphthoquinone in the reaction products; and separating the 2-substituted-1,4-naphthoquinone from the adduct.
Patent CA-2034163-A1 (CA)
Title: Method of increasing the efficiency of an electrical generator (combination slis/e-slis)
Inventor: SZABO LESLIE I
IPC: H02K19/24
Filed: 1991-01-15
Abstract: ABSTRACT OF THE INVENTION           This invention relates to a method of increasing the efficiency of an electrical generator of the type that generates real output power by a change of the reluctance of the magnetic flux path.  The efficiency is improved by providing specific components, features and characteristics of the generator in combination in acccordance with a specific relationship so as to reduce the relative effect of the load.  Also, the efficiency is improved by recognizing and reducing the effect of an alternating current superimposed on the excitation current.
Patent CA-2034919-A1 (CA)
Title: Cathode and heater assembly for electron-beam devices
Inventor: BABICH OLGERD I
IPC: H01J1/22
Filed: 1991-01-25
Abstract: CATHODE AND HEATER ASSEMBLY FOR ELECTRON-BEAM DEVICES                      ABSTRACT The cathode and heater assembly comprises an emitter mounted on the middle parts of at least two filamentary heater elements, the peripheral sections whereof are positioned at an equal acute angle to the longitudinal geometrical axis of the emitter and with the ends thereof are fitted to cu rent-conducting leads. The ends of the peripheral sections are positioned at the apexes of a polygon with two mutually orthogonal symmetry axes, one of which passes through the axes of the current-conducting leads, with the point of sym-metry axes intersections lying on the emitter axis.
Patent CA-2036071-A1 (CA)
Title: Aqueous polymer dispersions
Inventor: MATEJCEK FRANZ
IPC: D06N5/00
Filed: 1991-02-11
Abstract: O.Z. 0050/41405 Abstract of the Disclosure: Aqueous polymer dispersions obtainable by incorporating into an aqueous  starting dispersion containing A)   from 25 to 60 % by weight, based on the starting dispersion, of a polymer A as the disperse phase, built up from a) from 3 to 55 % by weight of one or more .alpha.,.beta.    monoethylenically unsaturated mono- or dicar-boxylic  acids  containing  from  3  to  5 carbon atoms, of an anhydride of these acids or of a mixture of these monomers (monomers a), and b) from 45 to 97 % by weight of one or more other copolymerizable monomers (monomer b), in polymerized form and having, in disperse form, a mean particle size of from 20 to 400 nm, B)   an effective amount of an emulsifier, and C)   water as the remainder, at a temperature below the boiling point of pure water and above the glass transition point of the polymer A, from 5 to 60 mol-%, based on the number of moles of acid functions of the polymer A copolymerized in the form of the monomers a, of one or more of the divalent metals magnesium, calcium and zinc in the form of the oxide, hydroxide, carbonate or bicarbonate or in the form of a mixture of these basic salts, a process for their prepar-ation, binders prepared therefrom, and bitumen-treated roof sheeting produced using these binders.
Patent CA-2039201-A1 (CA)
Title: Filler for molded articles
Inventor: RODMAN MARGARET G
IPC: C08K9/10
Filed: 1991-03-27
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention is directed to a powdered filler for use in curable molded or cast articles.  The filler comprises one or more particulate components to be incorporated into the molded or cast article, the particulate components being encapsulated by polystyrene. Preferably the polystyrene and particulate components are produced from recycling previously used articles.  In an aspect of the invention, a process for producing a filler for use with curable molded or cast articles is provided. The process comprises dissolving polystyrene and preferably dissolving and degassing expanded or foamed polystyrene in a suitable solvent, mixing into the dissolved polystyrene one or more particulate components to be incorporated into the molded or cast article, and drying the mixture, whereby the particulate components are encapsulated by the polystyrene.  In another aspect of the invention a molded or cast article is provided, the molded or cast article comprising a curable base material having incorporated therein the powdered filler.  In yet another aspect of the invention a process for producing molded article is provided, the process comprising adding the filler to a curable base material in a suitable mold to produce a molded or cast article.
Patent CA-2041947-A1 (CA)
Title: Communication system capable of broadcast messaging and transponder polling
Inventor: LEE TIM
IPC: H04L5/14
Filed: 1991-05-07
Abstract: A COMMUNICATION SYSTEM CAPABLE OF BROADCAST          MESSAGING AND TRANSPONDER POLLING          ABSTRACT OF THE DISCLOSURE    A communication system in which a controller is coupled over a communication path with two or more transponders, at least two of which transpon-ders have different addresses, which controller and transponders communicate by using a means for periodically transmitting a broadcast message simultaneously to all transponders, a means for transmitting an acknowledge message indicative of a new input received by at least one of the tran-sponders, and a means for individually polling all of the transponders using a polling technique which incorporates time periods to allow communi-cation between the controller and a selected transponder, wherein the normal means for polling is only activated subsequent to the transmission of the acknowledge message.  Periodic polls of all transponders in sequence provide supervision of the integrity of the system.
Patent CA-2042558-A1 (CA)
Inventor: TOJA EMILIO
IPC: A61P25/28
Filed: 1991-05-14
Abstract: L'invention a pour objet les composés de formule (I): (I) dans laquelle R représente un atome d'hydrogène, un radical alkyle linéaire, ramifié ou cyclique saturé ou insaturé renfermant jusqu'à 8 atomes de carbone, R' représente le reste d'un acide aminé ou d'un peptide, ainsi que leurs sels d'addition avec les acides organiques ou minéraux. Les composés de formule (I) présentent d'intéressantes propriétés pharmacologiques qui justifient leur utilisation en thérapeutique.
Patent CA-2043611-A1 (CA)
Title: Continuous process for preparing quaternary ammonium salts
Inventor: SU WEI-YANG
IPC: C07C211/62
Filed: 1991-05-30
Abstract: A CONTINUOUS PROCESS FOR PREPARING     QUATERNARY AMMONIUM SALTS        (D#80,937-F) ABSTRACT OF THE DISCLOSURE Disclosed is a process for the continuous preparation of quaternary ammonium chlorides from tertiary amines and organic chlorides wherein the catalyst comprises a metal oxide having Lewis acid sites, said oxide containing elements of Group IIA, IIIA, IIIB, IVA and IVB of the Periodic Table or a combination thereof.     80937.app
Patent CA-2044135-A1 (CA)
Title: Hetercyclic compounds
Inventor: LUETHY CHRISTOPH
IPC: A01P13/00
Filed: 1990-09-19
Abstract: Abstract The invention relates to compounds of formula               I     wherein W, X, y1, y2, Z, R1, R2 and R14 are as defined in the description, and to the preparation thereof, to weed control compositions and plant-growth-regulating composi-tions comprising such compounds as active ingredients, and to the use of the active ingredients or compositions for controlling weeds and for regulating plant growth.
Patent CA-2044749-A1 (CA)
Title: Catalyst retainer for a reactor tube
Inventor: TRUJILLO SHELDON G
IPC: B01J8/00
Filed: 1991-06-17
Abstract: D# 81, 040-F        ABSTRACT     In  a reactor tube which contains  a particulated catalyst,  a retainer is removably positioned in the tube exhaust port.  The retainer includes a head section to support the catalyst bed and a handle which prohibits the retainer from being inserted too far into the tube.  A deformed segment of the retainer is shaped to engage the reactor tube inner wall to effectuate a frictional hold between retainer and tube.     (rbb81040.app)
Patent CA-2045182-A1 (CA)
Title: Process for making flexible polyurethane foam
Inventor: GRABOWSKI WOJCIECH
IPC: C08G18/00
Filed: 1990-11-14
Abstract: ABSTRACT     A process for making flexible polyurethane foam, employing a silicone surfactant composition containing 5 - 20 wt % of a defined low molecular weight silicone surfactant and 95 - 80 wt % of a defined high molecular weight silicone surfactant. Use of the claimed mixture of surfactants provides product foams having improved breathability relative to foams produced using high molecular weight silicone surfactant alone.
Patent CA-2045606-A1 (CA)
Title: Inspection device on the basis of dark field illumination
Inventor: NUNNINK LAURENS
IPC: G01N21/84
Filed: 1990-12-14
Abstract: 1            Dunkelfeldbeirchtung PCT   HEUFT-QUALIPLUS B.V.          INSPECTION DEVICE ON THE BASIS OF DARK FIELD ILLUMINATION                      A b s t r a c t A  Device for inspecting with dark field illumination objects with at least one transparent portion, for instance glass bottles (3) is disclosed. The device comprises illuminating means (1); positioning means for placing the object such that that object can be illuminated by the illuminating means; a video camera (6) for sensing that object and generating video signals, which illuminating means (1) and which video camera (6) are disposed relative to the positioning means such that the video camera (6) senses no image in the case of a homogeneous transparent portion of an object without unhomogeneous parts, enclosures, bubbles, dirt or other deviations, and imaging means such as at least one positive lens (2) and/or at least one positive mirror (7) which are placed between the illuminating means (1) and the positioning means and which image the illuminating means (1) in the vicinity of the objective (5) of the video camera.            Fig. 1
Patent CA-2048850-A1 (CA)
Title: Catheter atherotome
Inventor: REGER VINCENT A
IPC: A61B17/3207
Filed: 1991-08-09
Abstract: A catheter atherotome (10) and method for its use for performing partial atherectomy in an artery and thereby enlarging the lumen effectively available for blood flow through the artery. Several blades (34) are mounted at a distal end of a catheter (30), in a helical basket configuration and spaced angularly apart from one another about the associated ends of two concentric sheaths (12, 14) in such a way that longitudinal and rotary relative movement of the sheaths selectively bows the blades arcuately outwardly into a cutting position or draws the blades flat into alignment with the sheaths.      The blades (34) have sharpened cutting edges (44) extending helically and directed toward the catheter's proximal end when the blades are bowed. Partial removal of an atheroma is effected by manually pulling the basket knife past an atheroma with the blades (34) in their outwardly bowed cutting positions, with the speed, force, and amount of expansion of the blades determined by the operator. Removal of cut-away pieces of atherosclerotic plaque material may be accomplished either by pull-back of a balloon catheter (60) or by use of a stacking-like filter (262) partially covering the blades (34) to trap the shavings. A tensioning member (284) may be included in a blade.
Patent CA-2049018-A1 (CA)
Title: Dual durometer epidural catheter
Inventor: BOTTERBUSCH CARL N
IPC: A61M25/00
Filed: 1990-03-09
Abstract: A catheter (10) intended for the administration of an anesthetic into a body space and methods of use such as introduction within the interpleural space are disclosed. According to the disclosure, the catheteris constructed so that only a soft distal portion (13) resides within the body space. A relatively stiff portion (14) joined to the relatively soft portion through the dense body tissue to the proximal end of the catheter. A biocompatible resin providing a softness of about 80A to 100A Rockwell is used for the relatively stiff portion. The relatively soft portion avoids damage to the delicate body tissue bounding the space whereas the relatively stiff portion resists kinking or collapse, both within the relatively stiff body tissue and outside the body. Spaced apart reference markings (16) are provided on the relatively stiff portion of the catheter in position to provide a visual indication of the amount of the relatively soft distal portion that is within the body space.
Patent CA-2049313-A1 (CA)
Title: Lactobacillus acidophilus f-133, lactic acid bacteria preparations using the same and a process of manufacturing the preparations
Inventor: MITSUOKA TOMOTARI
IPC: A61K35/747
Filed: 1991-01-30
Abstract: Abstract The   present  invention  comprises  a  novel  strain   of Lactobacillus acidophilus F-133 (FRI International Deposit  No. 2680),   lactic   acid   bacteria   preparations   using    the Lactobacillus acidophilus F-133 (FRI International Deposit  No. 2680), and a process of manufacturing the lactic acid  bacteria preparations   comprising   the  steps  of:   inoculating   the Lactobacillus acidophilus F-133 (FRI International Deposit  No. 2680) into  a medium comprising fermentable sugar as  a  major carbon source; cultivating and proliferating under  cultivation conditions adapted to facultative anaerobes; and then isolating bacteria into lactic acid bacteria preparations.
Patent CA-2052026-A1 (CA)
Title: Method and apparatus for redirecting air flow about a liquid binder application
Inventor: JENSEN THOMAS H
IPC: D02J3/18
Filed: 1991-09-23
Abstract: ABSTRACT The instant invention presents both an apparatus and method for redirecting the flow of entrained air surrounding a fan of rapidly moving glass filaments or fibers away from the vicinity of an applicator surface carrying a liquid used to coat the fibers.  In particular, the instant invention accomplishes this by providing at least one pair of aerodynamic stripping and deflecting surfaces to strip entrained air away from the front and rear of the fan and deflect the air away from the surface of the applicator so as to reduce turbulence in its vicinity and thereby allow the moving filaments to be coated more uniformly with a liquid binder or size solution.  In the preferred embodiment, air removed from one side of the fan is redirected through it in order to remove any residual air that was not removed by the initial action of the aerodynamic stripping and deflecting surfaces.  In an alternative embodiment, the flow of air through the fan is augmented by injecting a second stream of air to enhance the removal of this residual air from the fan.
Patent CA-2052070-A1 (CA)
Title: Power insole component concept
Inventor: RUSSEL JAMES
IPC: A43B17/00
Filed: 1991-07-19
Abstract: ABSTRACT OF THE DISCLOSURE      An insole for an article of footwear, comprises an upper layer of shock absorbing material designed to conform to the bottom of a human foot.  This upper layer has a plurality of holes formed therein at predetermined locations.  An undercarriage has resilient pins protruding through these holes in the upper layer to align the undercarriage with the upper layer and apply localized pressure to the foot at said predetermined locations.  The insole provides improved support and comfort to the wearer and can provide a massage effect by stimulating plantar aspect reflex points.
Patent CA-2052746-A1 (CA)
Title: Method for embossing webs
Inventor: VEITH JEROME S
IPC: D21H25/00
Filed: 1991-10-03
Abstract: Abstract of the Disclosure Embossing a web between unmatched male and female embossing elements, wherein the sidewall slope of the female element is greater than the sidewall slope of the male element, provides an embossed web having markedly improved embossing pattern definition and, in the case of roll products, greater roll bulk at equivalent roll firmness. The unmatched male and female embossing elements are preferably made by laser engraving rubber embossing rolls.
Patent CA-2052957-A1 (CA)
Title: Production of linear .alpha.-olefin
Inventor: SHIRAKI YASUSHI
IPC: C07C2/30
Filed: 1991-10-08
Abstract: ABSTRACT OF THE DISCLOSURE    Disclosed herein is a process for producing a linear .alpha.-olefin by the oligomerization of ethylene, characterized in that the oligomerization is carried out in the presence of a catalyst composed of (A) titanium halide or zirconium halide, (B) an organoaluminum compound, and (C) an alcohol (methanol and/or ethanol).  The linear .alpha.-olefin has an extremely high purity because it is not contaminated with the catalyst components.
Patent CA-2053466-A1 (CA)
Title: Translation/rotation device for external bone fixation system
Inventor: SHERMAN MICHAEL C
IPC: A61B17/60
Filed: 1991-10-15
Abstract: ABSTRACT     Apparatus for the fixation of bone fractures and the correction of congenital deformities uses an improved adjustment device that allows selective rotation or lateral translation of one external fixation ring with respect to other external fixation rings.  The adjustment devices attaches to a pair of first and second tie rod sections and shifts the first tie rod section with respect to the second tie rod section during adjustment.  The adjustment device has a lateral slot that defines the path of movement for one of the translation rod sections.  A travelling block connected to the moving tie section tracks the slot during use.