baber/WOPTO huggingface dataset:
Patent CA-2012157-A1 (CA)
Title: Radiant energy power source structure
Inventor: DOELLNER O LEONARD
IPC: B64D41/00
Filed: 1990-03-14
Abstract: ABSTRACT OF THE DISCLOSURE      A radiant energy power source structure for providing electrical power to a jet aircraft is disclosed.  The device comprises a plurality of inward facing longitudinal ribs arranged in a annular configuration positioned radially outward of the plurality of perforations in the combustion liner of a jet engine.  The longitudinal ribs are attached to a base which are a part of the outer combustion casing in the combustion section of the jet engine.  In addition to air passing over the longitudinal ribs, helically wrapped fuel passageways are additionally incorporated into the base. Interiorly to the channels formed by the longitudinal ribs are an upper and lower groove formed in each longitudinal rib, the lower of the two grooves adapted to receive a plurality of photovoltaic cells receiving the radiant energy, the photovoltaic cells arranged in a series electrical connection in the circular direction.  The circular series is broken at one point to carry off the electrical power.  Immediately inward of the photovoltaic cells in each formed channel is a protective plate securing the cell against dust particles carried by the incoming air and possible flame emission from the combustion liner.  Means are further provided to bleed air into an air gap created between the cell and the protective plate in order to equalize air pressure on both sides of the plate.
Patent CA-2016890-A1 (CA)
Title: System for operating magnetic levitation vehicles
Inventor: AUGSBURGER FRIEDEMANN
IPC: B60L15/00
Filed: 1990-05-16
Abstract: An apparatus for operating a magnetic cushion vehicle contains a synchronous long-stator motor with a long-stator winding which is subdivided in the longitudinal direction of a route section into winding sections (3.11-3.19; 3.21-3.29) directly following one another, and with an exciter which is mounted on a vehicle moving along the route section. Furthermore, at least one line cable (17, 28) is provided which runs parallel to the route section and is connected at its ends to one substation half (18A, B; 24A, B) each. The winding sections are connected one after the other to the line cable (17, 28) by means of switching devices (16, 22) in accordance with the passage of the vehicle. To reduce the power loss occurring in the line cable, to reduce the number of winding sections for a given amount of installed power and to utilize the installed power as uniformly as possible over the entire route section, it is proposed according to the invention that the ratio of the component currents to be delivered by the two substation halves be selected to be of varying size as a function of the respective operating conditions and/or the lengths (l) of the parts of the line cable which lead from the winding sections to the substations. 
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Patent CA-2017491-A1 (CA)
Title: Process for the preparation of 2,3-dialkoxypropanals
Inventor: KOEFFER DIETER
IPC: C07C49/175
Filed: 1990-05-24
Abstract: BASF Aktiengesellschaft                                   O.Z. 0050/40897 Process for the preparation of 2,3-dialkoxypropanls Abstract of the disclosure:            The preparation of 2,3-dialkoxypropanals of the general formula I       (I), in which R1 and R2 denote C1-C8-alkyl or C5- or C6-cycloalkyl which may or may not bear substituents which are inert under the conditions of the re-action, wherein a 1,2-dialkoxy ethene of the general formula II                            R10-HC-CH-OR2                  (II) is reacted with carbon monoxide and hydrogen in the presence of a rhodium-containing catalyst.
Patent CA-2017501-A1 (CA)
Inventor: TERASHIMA SHIGEO
IPC: G11B27/32
Filed: 1990-05-24
Abstract: A  recording/reproducing  device  that  performs  the recording/reproduction on a writable disk comprising an information recording area and a TOC area, and provided with guiding grooves that snake with cycles corresponding to the values of absolute addresses,  comprises division setting  means  for  dividing  according  to  an  external setting  and  to  a  set  capacity ratio,  the information recording area into a plurality of domains respectively corresponding to each sampling frequency of information to be recorded, and for producing additional information that indicates the details of the division,  an electromagnet and an optical head for recording each information in the domain of the information recording area that corresponds to its sampling frequency and for recording the additional information including the details of the division in the TOC area,  a spindle motor that drives the disk,  speed changing means  for adjusting the speed of the  spindle motor such that the velocity of the disk is changed in each  domain  during  recording  and  reproduction,   a demodulator where  the  absolute  addresses  are  obtained through demodulation by comparing frequencies determined from the snaking cycles of the guiding grooves with a reference frequency, changeover switches that change the reference voltage of the demodulator in accordance with the  sampling  frequency  of  each  information,  and  an operational circuit that converts the demodulated absolute addresses in accordance with the velocity of the disk and determines corrected absolute addresses that correspond to the time elapsed when taking the recording/reproduction starting  time  as  reference.  As  a  result,  the  burden imposed on the spindle motor is relieved, the demodulation of the absolute addresses may be executed accurately even when the rotational speed of the disk varies, and the time elapsed since the start of the recording/reproduction may be determined.
Patent CA-2017612-A1 (CA)
Title: Method for the preparation of a conductive silicone rubber particulate
Inventor: WAKITA HARUKI
IPC: C08L83/06
Filed: 1990-05-28
Abstract: Method of Preparing a Conductive Silicone Rubber Particulate Abstract of the Disclosure A method of producing a conductive silicone rubber particulate is disclosed in which the particulate is from 0.1 to 100 micrometers average diameter and is coated on the surface with carbon black.  The method prepares an aqueous dispersion of silicone rubber composition particulate, carbon black, surfactant, and water, then removes the water.
Patent CA-2017663-A1 (CA)
Title: Container for drinks having a drinking-straw incorporated therein
Inventor: SARTORI LUCA A
IPC: B65D77/28
Filed: 1990-05-31
Abstract: A B S T R A C T       The container (1) for drinks is provided  with a removable element (2) for causing the  "pop-opening"  of the container (1),  and has  a drinking-straw (5) housed inside the container itself and   associated  with  said removable element through an appropriate fastening means (6).  In  this  manner when the removable element (2) is torn up causing the container to be  opened,  the  straw (5)  comes out of said container (1) and,  by separating it from the removable  element  (2),  can  be  used  for drinking the liquid held in the container (1).
Patent CA-2019511-A1 (CA)
IPC: G01N21/35
Filed: 1990-06-21
Abstract: The characteristics of a biological fluid sample having an analyte are determined from a model constructed from plural known biological fluid samples. The model is a function of the concentration of materials in the known fluid samples as a function of absorption of wideband infrared energy. The wideband infrared energy is coupled to the analyte containing sample so there is differential absorption of the infrared energy as a function of the wavelength of the wideband infrared energy incident on the analyte containing sample. The differential absorption causes intensity variations of the infrared energy incident on the analyte containing sample as a function of sample wavelength of the energy, and concentration of the unknown analyte is determined from the thus-derived intensity variations of the infrared energy as a function of wavelength from the model absorption versus wavelength function.
Patent CA-2019756-A1 (CA)
Title: Novel thermoduric and aciduric pullulanese enzyme and method for its production
Inventor: TOMIMURA EIJIRO
IPC: C12N1/20
Filed: 1990-06-25
Abstract: A thermoduric and aciduric pullulanase enzyme, and a process for its preparation from a new microorganism designated as Bacillus naganoensis.  The pullulanase is useful for the production of dextrose and high-maltose syrups from starch hydrolyzates.
Patent CA-2019994-A1 (CA)
Title: Polymeric blend and laminated structures prepared therefrom
Inventor: ACHILLE FELIX
IPC: B65D8/04
Filed: 1990-06-27
Abstract: A polymeric blend comprising a polypropylene resin and very low density polyethylene are particularly suited for preparation of films which are readily adhered to metal surfaces. Sheet metal laminates according to the foregoing design are usefully employed in the manufacture of components for aerosol containers.
Patent CA-2020538-A1 (CA)
Title: Developer composition for positive working color proofing films
Inventor: LIU SHUCHEN
IPC: G03F7/32
Filed: 1990-07-05
Abstract: Abstract A developer composition for positive color proofing films containing a)  sodium, potassium or ammonium octyl sulfate; sodium, potassium or ammonium lauryl sulfate; sodium decyl sulfate; or sodium tetradecyl sulfate; and b)  sodium or potassium borate; and c)  boric acid; and d)  monobasic sodium or potassium phosphate; and e)  sodium or potassium citrate; and f)  sodium or potassium salicylate; and g)  sodium, potassium or lithium benzoate; and h)  sufficient water to formulate an effective developer.
Patent CA-2020992-A1 (CA)
IPC: B65H45/16
Filed: 1990-07-12
Abstract: ABSTRACT OF THE DISCLOSURE.          A web (17) received, for example, from an 8-page or 16-page printing machine, is severed in a cutter blade cylinder (6) needle - tucking blade cylinder (7) combination and the severed sheets are provided with a cross fold in a first system (A)   formed by the combination needle - tucking blade cylinder (7) and a combination needle - cutter blade cylinder (12), to be then further cross-folded and cut in a second system formed by the combination of the needle - cutter blade cylinder (12) with a needle - folding jaw cylinder (13). To permit the second combination to be operative, the combination needle - cutter blade cylinder (12) is additionally formed with tucking blades (21) for engagement in the folding Jaws (22) of the needle - folding jaw cylinder (13).  This arrangement permits double cutting and folding, for example, of longitudinally folded superimposed webs into, selectively, 8-1/2" x 11" or A4 products and cross-folding them to 5-1/2" x 8-1/2 or A5 products.
Patent CA-2022291-A1 (CA)
Title: Sulphonamide herbicides
Inventor: ASTLES DAVID P
IPC: A01N43/54
Filed: 1990-07-30
Abstract: ABSTRACT SULPHONAMIDE HERBICIDES       Compounds of the formula           (I) in which A is nitrogen or CR5; R1, R2 and R5 each independently are hydrogen, or halogen, formyl, cyano, carboxy or azido, or optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, alkoxy, alkenyloxy, alkynyloxy, aryloxy, alkylthio, alkenylthio, alkynylthio, arylthio, alkylcarbonyl, alkoxycarbonyl, amino, aminoxy or dialkyliminoxy; R3   is a hydrogen, or optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, heterocyclic, aralkyl or aryl; and R4 optionally substituted alkyl, aralkyl, aryl or heterocyclyl; and salts thereof, have herbicidal properties.  The invention also provides processes for their preparation and their use as herbicides.
Patent CA-2023361-A1 (CA)
Title: Printed circuit boards
Inventor: BARNHOUSE ROBERT L
IPC: H05K3/42
Filed: 1990-08-15
Abstract: IMPROVEMENTS IN OR RELATING TO PRINTED CIRCUIT BOARDS         Abstract of the Disclosure A printed circuit board having holes provided with two or more electrical conductors on the surface of each hole.  The conductors are circumferentially spaced apart around each hole so as to electrically isolate them from one another and each conductor is connected to an individual circuit line of the board.  The conductors may be through-hole conductors.  Alternatively, the holes are pin receiving holes for insertion of pins having two or more conductor lines for electrical contact with the con-ductors within the holes.     - i -
Patent CA-2024624-A1 (CA)
Title: Process for purifying hydrogen fluoride
Inventor: GUMPRECHT WILLIAM H
IPC: C01B7/19
Filed: 1990-09-05
Abstract: PROCESS FOR PURIFYING HYDROGEN FLUORIDE                   ABSTRACT OF THE DISCLOSURE                A process for preparing hydrogen fluoride that involves treating anhydrous hydrogen fluoride containing primarily trivalent arsenic impurities with a sulfur compound capable of providing sulfide ions (e.g., H2S) so as to precipitate the arsenic (i.e., as As2S3) followed by separation and recovery (e.g., by distillation or filtration) of purified anhydrous hydrogen fluoride.
Patent CA-2024762-A1 (CA)
Title: Method and apparatus for dithering antialiased vectors
Inventor: WELLS STUART C
IPC: G09G5/02
Filed: 1990-09-06
Abstract: In the method and apparatus of the present invention, dithered images are composited with separately rendered undithered images. The dithered image is first transformed back to its unquantized state to include the full range of intensity values by performing a back-transformation process which translates the quantized or dithered value back to its original intensity value. The back transformed dithered image is then combined with the separately rendered, but undithered image using the technique of compositing. The composited image is then dithered to a quantized representation and stored in the frame buffer for subsequent display.
Patent CA-2025890-A1 (CA)
Title: Process for reducing the level of t-butyl alcohol (tba) in visbroken polyolefins
Inventor: FODOR LAWRENCE M
IPC: C08F8/50
Filed: 1990-09-20
Abstract: ABSTRACT OF THE DISCLOSURE Use of strong acidic materials, such as molecular sieves, reduces the level of t-butyl alcohol (TBA) produced during the visbreaking of polyolefins.
Patent CA-2029399-A1 (CA)
Title: Method and apparatus for applying an elastic waistband to a disposable diaper
Inventor: MERKATORIS JOHN R
IPC: A61F13/49
Filed: 1990-11-06
Abstract: METHOD AND APPARATUS FOR APPYLIHG AN ELASTIC WAISTBAND TO A DISPOSABLE DIAPER                    ABSTRACT OF THE DISCLOSURE          The invention includes a method and apparatus for applying an elastic waistband to disposable diapers.  It uses canted, pin equipped wheels for stretching an elastic material and a belt system for stripping the elastic material from the pins and applying it to a diaper component web.
Patent CA-2030369-A1 (CA)
Title: Product/process/application for removal of mercury from liquid hydrocarbon
Inventor: MCNAMARA JAMES D
IPC: C10G25/00
Filed: 1990-11-20
Abstract: Impregnated carbon adsorbents for the removal of mercury from liquid hydrocarbons are used in a variety of applications. The activated carbon impregnated adsorbents in the present invention remain effective in removing mercury. Generally, these activated carbons are comprised of an activated carbon adsorbent impregnated with a composition containing metal halide or other reducing halide, supplemented according to the desired characteristics with other elements. The formulation of the impregnants in the present invention can be varied to adjust the performance characteristics so as to meet the desired mercury removal performance criteria, to achieve enhanced removal of organic bound mercury from liquid hydrocarbon, and to have other advantages useful in a variety of applications. These impregnated carbon adsorbents possess desirable qualities regarding their ability to remove even trace levels of mercury from liquid hydrocarbon without a leaching effect of the impregnants used.
Patent CA-2036657-A1 (CA)
Title: Temporary minimal protection synthesis of lh-rh analogs
Inventor: NESTOR JOHN J JR
IPC: C07K7/23
Filed: 1991-02-19
Abstract: A solid phase synthesis of LH-RH analogs in which the amino acids serine and histidine, if present, are side chain protected during the synthesis with groups labile to selected .alpha.-amino deprotecting agents.
Patent CA-2040825-A1 (CA)
Title: Machine washable mop sponge
Inventor: MACLEOD HUGH W
IPC: A47L13/16
Filed: 1991-04-19
Abstract: MACHINE WASHABLE MOP SPONGE                Abstract of the Disclosure Summary of the Invention In accordance with the preferred embodiment, the invention provides a sponge mop having a mop frame.   The mop frame has at one end a mop-head which acts as a backing plate for the sponge.   The mop-head comprises a sponge having Velcro (TM) fastening material affixed to its top surface for securably detachable engagement with mating Velcro (TM) fastening material affixed to the mop head. The Velcro (TM) fastening material is affixed to the sponge using a contact adhesive.  The Velcro (TM) fastening ma terial may be Velcro (TM) strips affixed longitudinally to the sponge and to the mop head.  In one embodiment, the mop head is a securably detachable backing plate, securably detachable from the mop frame,  to which the strips of Velcro (TM) fastening material are affixed.
Patent CA-2043353-A1 (CA)
Inventor: ZAREMBOWITCH ALAIN
IPC: H04L27/22
Filed: 1991-05-28
Abstract: Démodulateur numérique pour signal modulé par déplacement de phase à plusieurs états Abrégé descriptif Un dispositif numérique pour démoduler un signal modu-lé  par déplacement de phase à m états,  comprenant un circuit  d'échantillonnage et de  quantification  pour échantillonner  et  quantifier la composante en  phase (SI)  et la composante en quadrature de phase (SQ)  du signal  analogique  modulé d'entrée et un  circuit  de reconstruction  de  la porteuse pour  reconstruire  la porteuse servant à démoduler le signal d'entrée,  dans lequel le circuit d'échantillonnage et de  quantifica-tion  (10)  quantifie  les composantes (SI et  SQ)  au moyen  d'un nombre (Na-1) de seuils de  quantification (Vsi) différents. Ce dispositif est utilisé dans les systèmes de  commu-nications, notamment pour les liaisons hyperfréquences terrestres  et  par  satellites et pour  les  liaisons entre ordinateurs.
Patent CA-2043983-A1 (CA)
Inventor: JACKSON KENNETH L JR
IPC: F28F1/12
Filed: 1991-06-06
Abstract: A mold assembly for molding thermoplastic particles into a solid thin shell includes a metal shell having a cavity and including an outer surface exposed to a heat source and further including an inner surface on which thermoplastic material is cast and fused to form a thin layer thermoplastic shell.        The heat transfer area of the metal shell is increased by providing a plurality of heat transfer pins connected to the outer surface: each of the heat transfer pins has an extended outside surface area exposed to the heat source for heating said metal shell and each of said heat transfer pins further includes a large diameter head portion which is joined to the metal shell by a capacitive weld nugget formed solely between the large diameter head portion and the outer surface of the metal shell without disrupting the metal shell at surface portions thereof formed between the heat transfer pins.
Patent CA-2044593-A1 (CA)
Title: Method of in vivo delivery of functioning foreign genes
Inventor: BIRGHAM KENNETH L
IPC: C12N15/09
Filed: 1990-10-18
Abstract: A method of expressing a foreign gene in cells of a mammalian organ in vivo includes. the step of injecting genetic material capable of inducing desired gene products into a mammal. The genetic material is complexed to cationic liposome carriers.      The genetic material is lipofected into cells of the mammalian organ. Gene expression and cellular function of the genetic material are activated to produce the desired foreign products in the cells of the organ.
Patent CA-2045019-A1 (CA)
Inventor: MANO HIROSHI
IPC: H04Q11/04
Filed: 1991-06-19
Abstract: In a key telephone system in which a plurality of data terminals 371 ... 37n such as personal computers are connected to a key service unit 1 connected to a plurality of ISDNs 231 ... 23m, a terminal adapter (TA) 41 is pooled so as to be usable in common for the plural data  terminals  371  ...  37n.  In  response  to a  setup signal from an ISDN (e.g.  231), the key service unit 1 selects a single data terminal designated by a subaddress included  in  the setup  signal  from  among  the  data terminals 371 ... 37n, and closes a communication channel between the selected data terminal (e.g. 371) and the TA 41,  so  that  a  status  equivalent  to  that  where  the selected data terminal 371 and the TA 41 are directly connected to each other can be established.  Thereafter, the key service unit 1 transmits a setup signal to the TA 41, and the TA 41 transmits a call to the selected data terminal  371.    When  the  selected  data  terminal  371 responds to the call from this TA 41,  the key service unit 1 closes a communication channel between the TA 41 and the ISDN 251, so that a communication link between the selected data terminal 371 and the ISDN 231 can be established via the TA 41.  During the process until this communication link can be established, since the selected data  terminal  371  and  the  TA  41  are  in  the  status equivalent to direct coupling, the key service unit 1 is not concerned in the communications between the selected data  terminal  371  and  thus  TA 41,  thus  reducing  the operational load applied to the key service unit 1.
Patent CA-2045292-A1 (CA)
Title: Flexographic printing plate compositions
Inventor: MARTENS JOHN A
IPC: G03F7/027
Filed: 1991-06-24
Abstract: ABSTRACT OF THE DISCLOSURE           Negative-acting photohardenable compositions are useful in flexographic printing plate manufacture without the use of solvent development.  Unhardened composition is softened and absorbed by an absorbent sheet.  Absorbed composition can be removed from the sheet and recycled.
Patent CA-2045540-A1 (CA)
Title: Stand-up bag
Inventor: WILD RAINER
IPC: B65D33/08
Filed: 1990-01-25
Abstract: Abstract of the Disclosure The invention relates to a stand-up bag made of a heat-sealable or weldable plastic sheet material and adapted to contain liquid and/or pasty products.          In order to devise a stand-up bag of this type  in such a manner that it retains sufficient stability or standing ability after its contents have been partially dispensed, that it is capable of being readily handled and conveyed as well as of being produced in a simple manner and requires minimum storage space in its empty state, the invention provides that the stand-up bag is provided with a dispensing opening defined by a spout made of a plastic sheet material and connected to the top wall element of the bag.
Patent CA-2046915-A1 (CA)
Title: Animal model for benign prostatic disease
Inventor: LEDER PHILIP
IPC: C07K14/50
Filed: 1990-02-16
Abstract: A male transgenic non human vertebrate animal containing germ cells and somatic cells which contain a recombinant gene which is substantially homologous with a vertebrate gene in the int-2/FGF family which is capable of promoting benign prostatic hyperplasia or hypertrophy in said transgenic vertebrate, said gene being introduced into the animal, or an ancestor of the animal, at an embryonic stage.
Patent CA-2051115-A1 (CA)
Title: 4h-3,1-benzoxazin-4-one compounds and their pharmaceutical compositions for inhibiting elastase
Inventor: OSHIDA JUNICHI
IPC: C07K5/02
Filed: 1991-02-15
Abstract: ABSTRACT 4H-3,1-Benzoxazin-4-one compounds represented by formu-la [I]:                             [I]   and their salts, and pharmaceutical compositions containing the same as an active ingredient. They have inhibitory effect against protease, particularly inhibitory effect selective against human leukocyte elastase with high solu-bility in water and excellent tissue retention.
Patent CA-2055104-A1 (CA)
Title: Hockey puck
Inventor: KEATING MICHAEL D
IPC: A63B37/00
Filed: 1991-11-07
Abstract: An ice hockey puck has more uniform play during a period when provided with projections positioned circumferentially about the end surfaces which lift the puck from the surface to reduce the snow plowing effect, and the stability of the puck is maintained when the projections are dome-shaped to terminate in arcuate or flat ends.