baber/WOPTO huggingface dataset:
Patent CA-2062657-A1 (CA)
Title: Oxoacetals of polyvinyl alcohols, processes for their preparation and their use
Inventor: KROGGEL MATTHIAS
IPC: C08F8/28
Filed: 1992-03-11
Abstract: HOECHST AKTIENGESELLSCHAFT - Werk KALLE-ALBERT     Abstract of the disclosure:            Oxoacetals of polyvinyl alcohols, processes for their preparation and their use Acetals of polyvinyl alcohol (PVAL) which contain vinyl oxoacetal units of the formula I which are derived from aldehydes containing keto groups (oxoalkanals) and can be crosslinked with hydrazine or polyfunctional hydrazine derivatives or polyfunctional carboxylic acid hydrazides via their keto groups to give high molecular weight products having a variable spectrum of properties are described. Mixed acetals with aldehydes which contain no keto groups can also be prepared and can be crosslinked via  the  keto  groups  of  the  vinyl  oxoacetal  units. Products which are obtained from PVALs and oxoalkanals or low molecular weight  acetals  of the oxoalkanals  and contain vinyl oxoacetal units are preferably prepared in aqueous or organic media under acid catalysis. For the use of polyvinyl oxoacetals according to the invention, preferably as polymeric binders and coating agents, these can preferably be employed in dissolved or dispersed form, with addition of the abovementioned crosslinking agents, for a number of fields of use, it being possible for the crosslinking to be carried out during or after drying  of  these  solutions  or  dispersions  to  form sparingly soluble and swellable or insoluble and non-swellable polymeric modifications  having  surprisingly advantageous properties.
Patent CA-2063160-A1 (CA)
Title: Preparation of n-(1-alkoxyalkyl) formamide and alkylidene bisformamides using amine neutralized ion exchange resins
Inventor: LISTEMANN MARK L
IPC: C07C233/36
Filed: 1992-03-16
Abstract: ABSTRACT      This invention relates to an improved process for the formation of N-(l-alkoxyalkyl)amides with coproduction of alkylidene bisamides.  The N-(l-alkoxyalkyl)formamides of this invention are prepared by reacting formamide with an acetal or hemiacetal carboxylate ester represented by the formulas below in the presence of a solid acid ion exchange resin wherein the acid groups have been neutralized with an amine compound having a pKa (as the protonated amine in water) from about 4 to 9.  The hemiacetal ester is represented by formula I and the acetal is represented by formula II.                     I              II               In the above formulas  R is C1-C8 alkyl  aralkyl  or aryl; R1 and R2 are C1-C8 alkyl  or aryl; and R3 is secondary or tertiary alkyl having from 3-8 carbon atoms.
Patent CA-2063542-A1 (CA)
Inventor: TANAKA KUNIO
IPC: H05B3/03
Filed: 1992-03-19
Abstract: A tyre warm-up wrap used for pre-heating tyres of motor racing cars and motor cycles immediately before the start of a race.  The warm-up wrap is provided with a heat generating narrow fabric woven from a warp containing (i) an electrically heat-generating flexible yarn made of a mixed yarn composed of discontinuous conductive metal fibers and non-conductive fibers, and (ii) a non-conductive fiber yarn, and a weft composed of a non-conductive fiber yarn. The fabric has in both of the lengthwise end portions thereof wefts composed of conductive metal wires which are divided into a plurality of metal wire electrodes. The electrically heat-generating flexible yarns of the warp and the divided metal wire electrodes form together a series circuit extending forward and backward alternately along the length of the fabric between the divided metal wire electrodes in both the end portions thereof.
Patent CA-2064971-A1 (CA)
Title: Photodelineable coatings from hydrogen silsesquioxane resin
Inventor: HALUSKA LOREN A
IPC: G03F7/075
Filed: 1992-04-02
Abstract: PHOTODELINEABLE COATINGS FROM HYDROGEN SILSESQUIOXANE RESIN                         ABSTRACT           The present invention relates to a method of forming patterned coatings on substrates, especially electronic devices, by negative resist techniques.  The method comprises applying a preceramic coating comprising hydrogen silsesquioxane resin and an initiator onto the substrate and then radiating a selected region of the coating for a time sufficient to cure the resin.  The uncured coating is then rinsed away leaving the patterned coating.
Patent CA-2066560-A1 (CA)
Title: Coincident coil frequency-domain electromagnetic system
Inventor: DUCKWORTH KENNETH
IPC: G01V3/10
Filed: 1992-04-21
Abstract: The present invention is a device for exploration of the subsurface conductivity of the earth by means of electromagnetic induction.  The device employs closely spaced transmitter and receiver coils mounted rigidly in a single unit in a configuration which permits the primary electromagnetic coupling between the coils to be eliminated so that only secondary fields from subsurface conductive structures are detected.  This elimination of the primary coupling is achieved by the use of solenoidal coils which are configured such that their axes are parallel but with the coil axes separated by a distance less than 50 cm. An offset of the coils centres in the axial direction to the point at which the curvature of the transmitted primary signal induces signals at the two ends of the receiver coil which are equal in magnitude but of opposite phase so that these two signals achieve mutual cancellation. The achievement and maintenance of this balance requires that the device be extremely rigid and stable and this requires that the coils be of solenoidal (elongated) form to achieve this rigidity. The transmitted signal is harmonic and in the frequency range 10 Hz to 20,000 Hz. The close proximity of the two coils allows them to achieve maximum coupling with subsurface conductors simultaneously so that the response of the device to such conductors is maximized. The strength of response that this provides is only matched by devices in prior art in very limited circumstances. The benefits of this device are its ability to resolve the separate responses of closely spaced conductive structures and to provide estimates of the geometry of a detected structure (depth and dip) at the time the structure is detected in the field. The device also offers an ability to discriminate between highly conductive structures that is not available in devices described in prior art. Operation of the device in the field can be achieved without the need for cut lines.
Patent CA-2067961-A1 (CA)
Inventor: KIMPSON REBECCA J
IPC: G01F19/00
Filed: 1992-05-04
Abstract: A method and device are disclosed for monitoring the quantity of liquid drank during a selected time period. The device comprises a drinking glass 10 bearing a cursor 16 and a ring 18 rotatably mounted to the glass and having a scale imprinted thereon.  The ring is rotated about on the glass so that the cursor points to the number of discrete quantities of liquid drank, or yet to be drank, from the glass during the selected time period.
Patent CA-2068409-A1 (CA)
Title: Data entry book with sheet identification
Inventor: SAMREUS PHILIP N
IPC: G06F3/033
Filed: 1990-11-13
Abstract: A data book (20, 40, 110, 171, 200, 310, 340, 440) for use in data entry device includes a plurality of substrates (81-86, 120, 155, 180, 190, 231-235, 271, 345-367) having thin electrical elements (12, 17, 34) thereon. The substrates are movable with respect to each other to provide a plurality of configurations. The substrates and the electrical elements cooperate to provide electrical properties therebetween which may be sensed to determine substrates separation and provide the system with information to cause its mode of operation to correspond with the page opened. In several embodiments, the substrates are arranged in pageable books (40), tablets (210), sheet arrays (371), and exchange booklets (440).
Patent CA-2071020-A1 (CA)
Title: Malfunction monitoring device and method for a multiple-port mixhead plunger
Inventor: HLADIS ALAN
IPC: B29B7/80
Filed: 1992-06-11
Abstract: ABSTRACT         Malfunctions of plunger (15) in the mixhead (10) of a system for mixing a plurality of fluids such as polyol and isocyanate for the manufacture of polyurethane foam, which plunger induces variations in fluid pressures as the mixhead operates, are monitored by a method that includes the steps of measuring the upstream pressure of at least one fluid and generating a signal responsive thereto, and comparing the pressure responsive signal to a preselected pressure responsive signal and generating an alarm if the pressure responsive signal comparison falls outside preselected limits.  A device for implementing such a method includes transducers (40,41) for measuring the pressure of at least one fluid and generating a signal responsive thereto, an alarm (44) for generating a malfunction alarm, and a circuit (43) for receiving the pressure responsive signal and comparing the pressure responsive signal to a preselected pressure responsive signal and generating an alarm signal if the pressure responsive signal comparison falls outside preselected limits.
Patent CA-2072939-A1 (CA)
Title: Method of making gel free alkylaluminoxane solutions
Inventor: SANGOKOYA SAMUEL A
IPC: C07F5/06
Filed: 1992-07-02
Abstract: CASE: OL-6400 Abstract of the Disclosure Clear, gel free solutions of alkylaluminoxane, such as methylaluminoxane, in an organic solvent, such as toluene, are provided by treating a solution of the alkylaluminoxane with an anhydrous salt and/or hydroxide of an alkali or alkaline earth metal and then removing the solids from the solution such as by filtration.
Patent CA-2074034-A1 (CA)
Title: Aqueous polymer dispersions
Inventor: GRUBERT HEINRICH
IPC: C08F14/06
Filed: 1992-07-16
Abstract: BASFAKTIENGESELLSCHAFT                                   O.Z.0050/42570 Aqueous polymer dispersions Abstract of the disclosure: Aqueous polymer dispersions, obtainable by polymerizing, in aqueous medium by the free radical emulsion polymerization method, a mixture of monomers which contains from 10 to 100 %w/w of halogen-containing monomers, adjusting the pH of the aqueous phase of the resulting aqueous polymer dispersion to a value of from 5 to 10 by the addition of ammonia and primary and secondary amines of different basic agents and adding, based on the mixture of monomers, from 0.005 to 1 %w/w of at least one active ingredient selected from the group consisting of benzaldehyde, derivatives of benzaldehyde having one or two C1-C4 alkyl radicalson the aromatic nucleus, benzyl alcohol, camphor, esters derived from formic acid and C3-C6 alkanols, C10-C22-unsaturated fatty acids, tetraalkyl orthosilicates contain-ing alkyl radicals of from 1 to 4 carbon atoms, bis(4-hydroxyphenyl)-sulfone, citric acid and the salts thereof as well as salts of guanidine with organic or inorganic acids, both the addition of the basic agents and that of at least one active ingredient being possible prior to, during, and/or subsequently to the emulsion polymerization.
Patent CA-2074457-A1 (CA)
Inventor: WARNKE JAMES W
IPC: F16D3/84
Filed: 1992-07-22
Abstract: 60,680-019 BOOT ASSEMBLY FOR CONSTANT VELOCITY UNIVERSAL JOINT                              ABSTRACT OF THE DISCLOSURE A  unique  boot  retainer  for  use  in  a  constant  velocity universal  joint  includes  a  plurality  of  circumferentially  spaced radially inwardly extending resilient tabs.  The tabs snap into a groove at an outer peripheral surface of an outer race to provide a positive abutment, properly positioning the retainer and the boot relative to the outer race.  The unique construction simplified assembly of the boot and retainer to the outer race.  Several embodiments are disclosed.
Patent CA-2074536-A1 (CA)
Inventor: YANAGAWA HISAHARU
IPC: G02B6/13
Filed: 1992-07-23
Abstract: A method for manufacturing waveguide-type optical components featuring a lower propagation loss at low cost in which a lower clad section (2) made of silica glass is formed on a substrate (1), and an antistatic layer and a mask layer having a desired pattern are formed on the surface of the lower clad section (2) in the order they are listed. Then, an electron beam is irradiated from above the mask layer to produce a core (6) of the desired pattern in the lower clad section (2), the mask layer and the antistatic layer are removed to expose the surface of the lower clad section (2), and an upper clad section (7) having a lower refractive index than the core (6) is formed on the exposed surface of the lower clad section (2), thus producing an optical component. The surface of the whole optical component is apart from the core; therefore, the scattering loss caused by minute irregularities on the surface of the optical component is reduced.
Patent CA-2075786-A1 (CA)
Inventor: PIES JOHN R
IPC: B41J2/16
Filed: 1992-08-11
Abstract: ABSTRACT OF THE DISCLOSURE    Method   for   manufacturing   a   sidewall actuatable, high density channel array for an ink jet printhead.   A first surface of a main body portion  formed  from  an  inactive  material  is conductively bonded to a first surface of a first intermediate body portion formed from an active material.  A plurality of parallel grooves are then machined  through  the  first  intermediate  body portion and part of the main body portion to form a   plurality   of channels   separated   by   a corresponding  plurality  of  sidewall  actuators comprised of a first sidewall section formed from an inactive material and a second sidewall section formed from an active material.  A top body portion is then conductively mounted to the intermediate body portion.
Patent CA-2076592-A1 (CA)
Title: Method, test device and kit for assay of specific binding ligand using controlled flow through filtration membrane
Inventor: CONTESTABLE PAUL B
IPC: G01N33/543
Filed: 1992-08-21
Abstract: METHOD, TEST DEVICE AND KIT FOR ASSAY OF SPECIFIC BINDING LIGAND USING CONTROLLED FLOW           THROUGH FILTRATION MEMBRANE  Abstract of the Disclosure A test device has a microporous filtration membrane and absorbing means in fluid contact therewith which are designed so as to provide a drainage time of at least about 20 seconds for a given fluid sample.          Retaining the fluid on the membrane for a longer period of time during a specific binding assay reduces background and improves assay sensitivity.  The test device can be supplied as part of a diagnostic test kit and used in a variety of diagnostic methods.  In particular, the invention is useful for the determination of microorganisms associated with periodontal diseases.
Patent CA-2082261-A1 (CA)
Title: Regenerative braking protection for an electrically-propelled traction vehicle
Inventor: STITT THOMAS DETLOR
IPC: B60L3/00
Filed: 1992-01-24
Abstract: An electric propulsion system for a traction vehicle includes a controllable power converter operable in either a propulsion or an electric braking mode in which power is withdrawn from a wayside source or returned to the source, respectively. The wayside source utilizes certain preselected frequencies for power generation and for signaling. It is desirable to detect these frequencies quickly and to be able to disconnect the vehicle from the source if some frequencies are being generated by the vehicle and others are not present on the system. Bandpass filters are coupled to the power converter to detect the preselected frequencies. Wayside transients sometimes encroach on these frequencies with large power spikes causing ringing of the filter circuits and delay in detecting the preselected frequencies. The system includes an active power limiter for limiting the peak amplitude of the signals coupled to the filters without interfering with the signal frequency content or affecting filter operation.
Patent CA-2086145-A1 (CA)
Title: Data transmission system
Inventor: TOMBAL JURGEN M E
IPC: H04L25/49
Filed: 1992-12-23
Abstract: - 39 -  J. TOMBAL - P. REUSENS -D. SALLAERTS  1-11-5 ABSTRACT            DATA TRANSMISSION SYSTEM A data transmission system is proposed in which an auxiliary bitstream of low bitrate (AUX) is coded together with a main bitstream of high bitrate (PRIM) without increasing the transmission rate above the high bitrate. This auxiliary bitstream (AUX) is moreover transmitted synchronously with the main bitstream (PRIM).       To achieve this transmitter (T) divides the main bitstream (PRIM) in periodically occurring blocks of Y bits and codes one bit of the auxiliary bitstream (AUX) in each of said blocks by using a first (AMI) or a second (VAMI) coding law according to the binary value of that bit.  The second law is constructed by violating the first coding law (AMI) according to a predetermined violation law. Redundancy in the first coding law (AMI) is used to introduce symbol sequences not permitted under this first coding law (AMI) and to so obtain the second coding law (VAMI).            Fig. 1
Patent CA-2087689-A1 (CA)
Inventor: GILLNER MANFRED
IPC: H05B3/86
Filed: 1993-01-20
Abstract: Dispositif destiné à poser un mince fil métallique en ligne droite sur la surface de la pellicule thermoplastique d'un vitrage en verre feuilleté. Un dispositif destiné à poser en ligne droite un mince fil métallique (12) sur la surface de la pellicule thermoplastique (2) d'un vitrage en verre feuilleté comprend un support de fixation rotatif pour la bobine d'alimentation de fil (11), un galet de pression chauffé (8) pour presser le fil (12) dans la pellicule thermoplastique (2) et un dispositif de guidage (9, 10) pour le fil (12), entre la bobine d'alimentation (11) et le galet de pression (8). La bobine d'alimentation (11) est accouplée en rotation à un frein électromagnétique (28) à moment de freinage réglable et à domaine de régulation élevé du moment de freinage. Le frein électromagnétique (28) est de préférence un frein à poudre magnétique.
Patent CA-2089430-A1 (CA)
Title: Aqueous pharmaceutical suspension for pharmaceutical active
Inventor: BLASE CYNTHIA M
IPC: A61K9/00
Filed: 1993-02-12
Abstract: The present invention relates to an aqueous pharmaceutical suspension composition comprising:  from about 0.2% to 20% of a substantially water soluble pharmaceutical active, e.g.  acetaminophen;  a suspension stabilizing effective amount of xanthan gum and microcrystalline cellulose; an effective amount of taste  masking compositions; and water, as  well  as  a  process  for  producing  such  aqueous pharmaceutical suspensions.
Patent CA-2090632-A1 (CA)
Title: Retractable stud cleat
Inventor: BRODER MORRIS H
IPC: A43C15/14
Filed: 1993-03-01
Abstract: ABSTRACT OF THE DISCLOSURE            A cleat for jogging shoes having an adjustable stud which may be adjusted to protrude out from the cleat and to retract into the cleat.
Patent CA-2090701-A1 (CA)
Inventor: CRIVELLI ENZO
IPC: C07K14/61
Filed: 1991-08-29
Abstract: A method of preparing a protein in a physiologically active form, which method includes providing a source of protein in an at least partially solubilised form; and a refolding agent including an effective amount of a low molecular weight monothiol or derivative thereof; subjecting the solubilised protein to a refolding step, in the presence of the refolding agent.
Patent CA-2090910-A1 (CA)
Title: Fat pies and method of preparing pies
Inventor: GAUTCHIER PETER M
IPC: A21D2/16
Filed: 1993-03-03
Abstract: Abstract The invention concerns pie products with less than 25 wt% fat, wherein the fat consists of 2 components A and B, A being present in l-10 wt% and displaying a melting point below 43°C and an SFI at 21°C of 20-49; B being present in 2-15 wt% and displaying a melting point below 43°C and an SFI at 21°C of 50-73. In the production fat A is premixed with flour, while fat B is added to this premix in a molten stage.
Patent CA-2093618-A1 (CA)
Title: Method for pulverization of vegetable fiber materials and its pressure roller system
Inventor: PRATER ROBERT W
IPC: B01J2/22
Filed: 1993-04-07
Abstract: ATTORNEY DOCKET NO. 1159-1015 IN THE UNITED STATES PATENT AND TRADEMARK OFFICE          METHOD FOR PULVERIZATION OF VEGETABLE      FIBER MATERIALS AND ITS PRESSURE ROLLER SYSTEM                Abstract of the Disclosure The manufacture of fine powder from vegetable fiber materials at relatively low cost and without contamination, wherein the manufacturing system involved is equipped with a pressure roller system having a couple of pressure rollers having teeth of wave-shaped cross-section and teeth bottoms, the teeth of one roller being engaged with the teeth bottom of the other and the both rollers being placed opposite to each other with a minimal space in between and arranged for synchronous revolution, with the present invention comprising such processes as to pressure-feed vegetable fiber raw materials to said pressure roller system, to mill aforesaid raw material with the above pressure roller system and, after multiple repetition of said milling process, to pulverize flaked raw material resulting from the aforesaid milling process with a flake breaker.
Patent CA-2095429-A1 (CA)
Title: Imidazolidinone compounds
Inventor: BENDER PAUL E
IPC: A61P37/08
Filed: 1991-11-05
Abstract: Novel imidazolidinone derivatives are described which inhibit the production of Tumor Necrosis Factor and are useful in the treatment of disease stated mediated or exacerbated by TNF production.  The compounds of the present invention are also useful as inhibitors of PDE IV and are therefore useful in the treatment of disease states in need of mediation or inhibition thereof.
Patent CA-2095626-A1 (CA)
Title: Therapeutic and diagnostic methods using total leukocyte surface antigens
Inventor: RITTERSHAUS CHARLES W
IPC: G01N33/569
Filed: 1991-11-01
Abstract: The invention relates to the measurement of total leukocyte antigens, or fragments thereof, and the use of such measure-ments to enumerate cells, especially in whole blood. The term "total" leukocyte antigen used herein refers to the total amount of a leukocyte antigen in a sample, including that present in membrane and intracellular compartments and extracellular soluble com-partments. Measurements of a total leukocyte antigen can be used to type cells, detect or diagnose disease or to monitor disease therapy. In a further embodiment, the invention relates to the measurement of both the amount of total leukocyte antigen and the amount of the soluble form of the leukocyte antigen and a comparison of the measured levels.
Patent CA-2098089-A1 (CA)
Title: Mounting base for guidebars
Inventor: LEINI ARVO
IPC: B27B17/02
Filed: 1991-12-09
Abstract: A mounting base for chain saw guidebars, comprising a plate (11) with a slot (14) in which a guide piece (36) can slide in the lengthwise direction of the guidebar, said guide piece being acted on by one or more pistons (17) energized by a self-contained pressure source (19) preferably comprising a gas spring, and a valve device (18) which can be set in different positions, during sawing urging the guidebar outwards with a predetermined force and preventing displacement inwards, and during changing of saw chain or guidebar permitting displacement inwards of the guidebar while preventing the pistons (17) from urging the guidebar outwards.
Patent CA-2100124-A1 (CA)
Title: Silicone-aluminum catalyst and process for producing tertiary olefin
Inventor: ISHINO MASARU
IPC: B01J23/02
Filed: 1993-07-08
Abstract: ABSTRACT OF THE DISCLOSURE         A process for producing of a tertiary olefin by contacting a gaseous tert-alkyl ether with a catalyst, wherein the catalyst is a silicon-aluminum catalyst obtained by soaking silica-alumina in an aqueous solution of a hydroxide or a weak acid salt of an alkali metal and/or an alkaline earth metal, wherein the pH of the aqueous solution is kept in the range of 7 to 11 throughout the soaking, or a   silicon-aluminum   catalyst   obtained   by supporting a hydroxide or a weak acid salt of an alkali metal and/or an alkaline earth metal on a carrier, wherein the  carrier  is  obtained  by  heating  silica  having  an aluminum salt supported thereon at a temperature higher than the temperature at which the aluminum salt decomposes.