baber/WOPTO huggingface dataset:
Patent CA-2002392-A1 (CA)
Title: Inflatable packer with improved reinforcing members
Inventor: SANFORD LAWRENCE
IPC: E21B33/127
Filed: 1989-11-07
Abstract: Abstract of the Disclosure An inflatable packer is provided for setting downhole in  an  oil  or  gas  well  to  prevent  fluid  flow  past  the packer.   The packer is of the type which includes an upper and lower packer head, an inflatable elastomeric bladder, a radilly outward tubular packer cover,  and a plurality of overlapping  metal  reinforcing  members  positioned  in  the annulus between the bladder sleeve and the tubular packer cover.  Each reinforcing member is slidably movable relative to another reinforcing member during setting of the packer, and  includes  a stop member  between  the packer heads for limiting  to  a  preselected  amount  the  relative  sliding movement,  such  that  gaps between  reinforcing members are minimized  or  eliminated.    These  stop  members  on  the reinforcing members may be formed by a stamping operation, wherein  a  recess  stamped  in  one  reinforcing  member  is adapted to receive a lip stamped in an adjacent reinforcing member.   When  the  lip drops  within  the  recess,  further sliding  movement  between  those  reinforcing  members  is prohibited.    Each  of  the  reinforcing members  preferably includes an interior surface substantially parallel to the outer  surface  of  the  bladder  sleeve  when  the  packer  is inflated.      The   concepts   of   the   present   invention substantially  reduce  the  likelihood  of  rupture  of  the bladder, thereby enhancing the reliability of an inflatable packer.
Patent CA-2006502-A1 (CA)
Inventor: YASUDA HIROSHI
IPC: H04M1/2757
Filed: 1989-12-22
Abstract: In a telephone system, when a predetermined key of a handset unit is operated data stored in a memory incorporated within the handset unit is transferred to a memory incorporated within another handset unit, so that data that was manually input for storage in the memory of the first handset unit can be copied to the memory of a second handset unit, to eliminate the requirement to manually input the same data into the second unit.
Patent CA-2007179-A1 (CA)
Title: Holder for molten metal sampling device
Inventor: HAUGHTON GARY H
IPC: G01N1/12
Filed: 1990-01-04
Abstract: A holder for a molten metal sampling device includes a pipe having a guidance chamber in a lower portion and a molten metal sampling device in an upper portion.  The pipe is open downwardly and a closure element closes the opening.  The closure element has a density such as to cause it to float upwardly in the molten metal being sampled.  A protective cover, preferably of two parts, encloses the closure element and a lower portion of the pipe.  A retaining device such as a spring clip holds the separate parts of the protective cover together around the closure element and the lower part of the pipe.  The retaining device is adapted to fail upon contact with the molten metal, thus releasing the portions of the protective cover so that they will separate and float upwards, whereupon the closure element also separates and floats away, allowing molten metal into the guidance chamber and the sampling device.
Patent CA-2007670-A1 (CA)
Title: Semiconductor photodetector device and method of manufacturing the same
Inventor: TAKAOKA KEIJI
IPC: H01L31/0304
Filed: 1990-01-12
Abstract: Abstract of the Disclosure Disclosed are an avalanche photodiode and a manufacturing method thereof.  An n?-type InGaAs light absorption layer and n?-type InP window layer are formed on an n-type InP substrate by crystal growth, in the order mentioned.  A depression is formed in a selected surface portion of the window layer, and n-type impurities are doped into the bottom of the depression, to thereby form an n-type high concentration region.  Further, n?-type crystal-grown InP layer is formed in the depression in such a way as to fill the depression.  A guard ring is formed around the depression by the doping of p-type impuri-ties.  By doping p-type impurities into the window layer, a p-type high concentration region is formed in the window layer in a manner completely surrounding the interface between the n-type high concentration region and the crystal-grown InP layer.  The n-type and p-type high concentration regions define a junction serving as a light-receiving region.  Since the inter-face of the crystal-grown InP layer, which may not have a satisfactory crystalline structure, is located within the p-type high concentration region, that interface is not supplied with a high electric field during use.          Accordingly, the performance of the avalanche photodiode is not influenced by the interface.
Patent CA-2008332-A1 (CA)
Title: Molded polymer article filled with inorganic material and production of said articl
Inventor: ENDO ZEN-ICHIRO
IPC: C08K9/06
Filed: 1990-01-23
Abstract: Molded Polymer Article Filled With Inorganic Material and Production of Said Article Abstract of Disclosure A method is disclosed for preparing filled shaped articles of metathesis polymerized poly(cycloolefins) wherein an inorganic filler material is treated with a norbornene-substituted silane coupling agent.  The norbornene moiety copolymerizes with the metathesis polymerizable monomer and the silane moiety creates a bond with the filler.  Products are characterized by improved physical properties.
Patent CA-2011460-A1 (CA)
Title: Solventless silicone coating composition
Inventor: NARULA DIPAK B
IPC: C08L83/04
Filed: 1990-03-05
Abstract: SOLVENTLESS SILICONE COATING COMPOSITION       ABSTRACT     There are disclosed solventless silicone coating compositions comprising a homogeneous mixture of (A) a liquid silicone resin reaction product prepared by hydrolyzing an equilibrated mixture of (i) a first silane and (ii) a first diorganopolysiloxane, (B) a second silane and (C) a second diorganopolysiloxane.  The compositions find utility as protective coatings, particularly in corrosion resistant high temperature paint applications.  Coatings having excellent humidity resistance are formed when the compositions of the present invention are further modified with a minor portion of an amine-functional polydimethylsiloxane.
Patent CA-2012043-A1 (CA)
Inventor: FUHRMANN ERNST
IPC: F28F1/32
Filed: 1990-03-13
Abstract: Disclosed is a heat exchanger assembled of a plurality of oval heat exchanging pipes whose end portions are mounted in a leakage proof manner in oval openings of top and bottom plates. The ratio of major and minor diameters of intermediate portions of the pipes is 2.5 : 1 through 8 : 1 whereas the ratio of the major and minor diameters of the oval openings in the end plates is 1.2 : 1 through 3 : 1. A method of mounting the pipe end portions in the oval openings is based on a preliminary shaping of the end portions by the application of pressure from the outside toward the center axis of the end portions in the direction of their major diameter. The preshaped end portions are inserted into sealing collars surrounding the edges of respective plate openings. Thereafter the end portions are expanded by means of mandrels to sealingly close the openings.
Patent CA-2018636-A1 (CA)
Title: Precipitation hardening ferritic-pearlitic steel
Inventor: SCHULER VOLKER
IPC: C22C38/00
Filed: 1990-06-08
Abstract: The present invention relates to a precipitation hardening ferritic-pearlitic steel which is especially adapted for use with reciprocating valves in internal combustion engines. The steel according to the invention typically contains from 0.20 to 0.60% carbon, 0.20 to 0.95% silicon, 0.50 to 1.80% manganese, 0.004 to 0.04% nitrogen and 0.05 to 0.20% vanadium and/or niobium. The balance of the steel is comprised of iron and incidental impurities.
Patent CA-2020065-A1 (CA)
Title: Tetrapeptide type-b cck receptor ligands
Inventor: SHIOSAKI KAZUMI
IPC: A61P25/28
Filed: 1990-06-28
Abstract: TETRAPEPTIDE TYPE-B CCK RECEPTOR LIGANDS                     ABSTRACT OF THE DISCLOSURE       A tetrapeptide type-B CCK receptor ligand of the formula A-B-C-D   or a pharmaceutically acceptable salt thereof, which is useful for treating central nervous system disorders, substance abuse, gastrointestinal disorders, endocrine disorders, eating-related disorders and treatment of shock, respiratory and cardiocirculatory insufficiencies.
Patent CA-2020092-A1 (CA)
Title: Transition metal tris-dithiolene and related complexes as precursors to active catalysts
Inventor: HALBERT THOMAS R
IPC: B01J31/22
Filed: 1990-06-28
Abstract: ABSTRACT OF THE DISCLOSURE           The  present  invention  is  based  on   the discovery that  certain  transition  metal  containing complexes thermally decompose to form solids  contain-ing the transition metal, sulfur and carbon and  that these transition metal,  sulfur and carbon  containing solids are  particularly  suitable  as  catalysts  for hydrodesulfurization, hydrodenitrogenation and aromat-ics hydrogenation.   The  transition  metal  complexes that are thermally decomposed  to novel catalysts  are complexes of  the  type  represented  by  the  general formula MLn3, wherein M is selected from Mo, W, Re and mixtures thereof, L is  a dithiolene or  aminobenzene-thiolate ligand, and n represents the total charge  of the metal complexes, and is 0, -1, or -2.
Patent CA-2021537-A1 (CA)
Title: Telecoordinometer
Inventor: ANESA FRANCESCO
IPC: G01B11/16
Filed: 1990-07-19
Abstract: "TELECOORDINOMETER"                         Abstract The  telecoordinometer  (1) is capable of  detecting the movements and/or the oscillations of a structure  (8) it is associated with. It comprises an absolute reference element   constituted   by  an  either  horizontally   or vertically  taut line (2,  2A) and a detection  apparatus (3,  3A)  integrally affixed to the  monitored  structure (8),  capable  of  detecting  the  movements  and/or  the oscillations  according to at least one direction of said taut line (2, 2A) relatively to the structure (8).
Patent CA-2023023-A1 (CA)
Title: Carbon doping mosfet substrate to suppress hot electron trapping
Inventor: HADDAD HOMAYOON
IPC: H01L29/78
Filed: 1990-08-09
Abstract: CARBON DOPING MOSFET SUBSTRATE TO SUPPRESS HOT ELECTRON TRAPPING     ABSTRACT OF THE DISCLOSURE A MOSFET device having a near-micrometer or submicrometer channel length and designed to operated under conditions that cause generation of hot carriers is carbon doped in the silicon substrate (12) at the gate oxide(16)-silicon interface (18).  The oxide-silicon interface can include hydrogen atoms.  These atoms are mostly bonded to carbon atoms, more strongly than hydrogen bonds to silicon, so that hot carriers are less likely to dissociate the hydrogen atoms and form hot carrier trapping sites at the interface.  Hot carrier aging is thus substantially reduced.  This capability is particularly useful in submicrometer devices, avoiding need to reduce normal operating voltages.
Patent CA-2024716-A1 (CA)
Title: Ethylene/vinyl alcohol copolymer alloys, gas barriers, heat shapable and/or repeated flexion resistant
Inventor: MOULIES JEAN-CLAUDE
IPC: C08L29/02
Filed: 1990-09-06
Abstract: A blend based on ethylene-vinyl alcohol copolymer with gas barrier property, characterised in that it is made up of a mixture, by weight, of:     42.5 to 99.5 % of EVOH   0.4 to 42.5 % of polypropylene   0.1 to 15.0 % of compatibilising agent defined in the description.
Patent CA-2027438-A1 (CA)
IPC: F16D27/112
Filed: 1990-10-12
Abstract: A clutch is disclosed which includes an electromagnetic drive mechanism. A hub is frictionally secured on a drive shaft and has a flange portion radially extending from its outer peripheral surface. An annular armature plate is coupled to the flange and spaced from an axial end surface of the rotor. A plurality of threaded holes are formed in the flange portion of the hub to permit the use of a tool which detaches the hub from the drive shaft. An annular plate is disposed at an inner surface of the flange portion of the hub to cover the plurality of holes so that water from the outside of the electromagnetic clutch is prevented from entering through the holes. Thus, corrosion of internal parts is prevented and clutch life and performance are enhanced.
Patent CA-2027952-A1 (CA)
Title: Topical medicinal pressurized aerosol compositions and method of preparation, method of use and article of manufacture thereof
Inventor: GORMAN WILLIAM G
IPC: A61P31/04
Filed: 1990-10-18
Abstract: D.N. 1080A     ABSTRACT         Topical medicinal pressurized aerosol compositions and method of preparation, method of use and article of manufacture thereof especially wherein the topical medicament is mafenide or a pharmaceutically acceptable acid addition salt thereof, most especially mafenide acetate, and especially for treatment of burns are disclosed.  The aerosol compositions consist essentially of by weight/weight from about 0.1% to about 15% of a topical medicament or a mixture of two or more topical medicaments, from about 3% to about 20% of a liquified propellant or a mixture of two or more liquified propellants, from about 20% to about 80% of an aqueous vehicle, and from about 0.1% to about 10% of a nonionic polyoxyethylene surfactant or a mixture of two or more nonionic polyoxyethylene surfactants each having at least 80% by molecular weight of oxyethylene units, the composition  being dischargeable from an aerosol dispenser as a spray that forms a stable foam on the application site.
Patent CA-2028786-A1 (CA)
Title: Bleach precursors
Inventor: MADISON STEPHEN A
IPC: C07C219/06
Filed: 1990-10-29
Abstract: C 6097 (R) ABSTRACT             A bleach precursor compound, its peroxygen derivative, and detergent compositions containing these materials i  are disclosed herein. The bleach precursors structurally comprise a pair of different diesters, one ester containing an electrically-charged functional group. Perhydrolysis of the precursor in the presence of hydrogen peroxide and a basic aqueous medium generates a peroxycarboxylic acid.
Patent CA-2029818-A1 (CA)
Inventor: KIM JIN D
IPC: H05K1/18
Filed: 1990-11-13
Abstract: SURFACE-MOUNT FILTER            Abstract of the Disclosure A filter assembly (100) includes a ceramic block filter (102) and shielding bracket (132) which surface mounts to a printed circuit board (152) for interconnecting to radio frequency devices, such as a radio transceiver. The bracket (132) is soldered to the filter (102) and includes two openings (136 and 137) for exposing input/output electrodes (106 and 107) of the filter. The printed circuit board (152) includes an opening (162) shaped to accept the filter (102) and bracket (132) when inserted therein. Transmission lines (156 and 157) are disposed on tabs (158 and 159) and are reflow soldered to the corresponding electrodes (106 and 107) of the filter. The bracket (132) includes two tabs (134) which are reflow soldered to grounded portions of the circuitry on the top side of the printed circuit board (152).
Patent CA-2029980-A1 (CA)
Title: Two-side imageable photothermographic paper
Inventor: MCCARNEY GREGORY J
IPC: G03C1/76
Filed: 1990-11-14
Abstract: ABSTRACT OF THE DISCLOSURE     Two-side coated paper dry silver photothermo-graphic imaging elements suffer from bubbling on the second coated side.  The use of polyvinylacetate as part of the binding media for the second coated emulsion has been found to reduce the problem.
Patent CA-2030019-A1 (CA)
Title: Continuous filament yarn for trackless carpet
Inventor: PURSLEY THOMAS C
IPC: D02G1/18
Filed: 1990-11-15
Abstract: CONTINUOUS FILAMENT YARN TRACKLESS CARPET          ABSTRACT OF THE DISCLOSURE Cabled yarn useful for making trackless carpet is described.  The yarn develops texture during conventional heatsetting of the yarn without the use of mechanical crimping means.  The yarn comprises crimped carpet filaments and filaments having a high degree of shrinkage.
Patent CA-2030251-A1 (CA)
Inventor: MICHIE ALEXANDER
IPC: H02G3/08
Filed: 1990-11-19
Abstract: There is disclosed an electrical junction box having a plurality of tiers each of which increases in cross-sectional area from the top of the box to the bottom thereof.  The tiers, being annular are adapted to receive conduits from a plurality of angles or levels.  A releasably engageable lid covers the box which, may be mounted to or within a substrate by a mounting member integral with the junction box.
Patent CA-2031565-A1 (CA)
Title: Optical disc apparatus
Inventor: SHINADA AKIRA
IPC: G11B33/08
Filed: 1990-12-05
Abstract: An optical disc apparatus includes an optical pickup for reading recorded information on an optical disc, a servo controller for performing tracking servo control and/or focus servo control of the optical pickup in response to an output signal from the optical pickup, a vibration detector for detecting a vibration occurred to the body of the apparatus, and control means for performing up and down control of a servo gain for the tracking servo and/or the focus servo of the optical pickup in response to an output signal from the vibration detector.
Patent CA-2033855-A1 (CA)
Title: Process for countercurrent washing and bleaching of a pulp from chemical pulping
Inventor: SILANDER RISTO
IPC: D21C9/10
Filed: 1991-01-09
Abstract: Abstract The invention relates to a process for countercurrent washing and bleaching of a pulp from chemical pulping (1). The pulp is washed on the washing line (2-5) countercurrently with hot water, the filtrate being ultimately directed to evaporation and to chemicals recovery, and the pulp thus washed is further after-washed (6) with warm water before being directed to the bleaching line (7-11), which has successively a chlorine -chlorine dioxide step (7), an alkali step (9) and a final bleaching (11), the bleached pulp being washed after each of the above bleaching steps. According to the invention, after the chlorine - chlorine dioxide step (7) and the alkali step (9) so much filtrate is removed from the washed pulp, for ex-ample, by pressing, that the solids content of the pulp will be at least 30 %, and at least a portion of the filtrate thus obtained is directed to the last step (5) of the countercurrent wash as its first washing water, which is displaced with the said hot water before the after-wash (6).
Patent CA-2033951-A1 (CA)
Title: Microcontroller controlled static input protection
Inventor: ADAMS JOHN T
IPC: G05B19/042
Filed: 1991-01-10
Abstract: MICROCONTROLLER CONTROLLED      INPUT PROTECTION ABSTRACT OF THE DISCLOSURE A  method  and  apparatus  provide   input protection  in  a  system  having  a  controller  which monitors a controller terminal for at least  one monitor period.   The controller terminal for coupled for bi-directional operation.  The controller terminal is set to an output configuration for at least a portion of the time that the controller terminal is not being monitored by the controller.
Patent CA-2035230-A1 (CA)
Title: Reinforced dental appliances and prostheses
Inventor: RUDO DAVID N
IPC: A61K6/891
Filed: 1991-01-29
Abstract: A method of reinforcing a dental appliance or prosthesis comprising a resin, which includes the steps of applying to a resin portion of the dental appliance or prosthesis a lightweight, woven aramid or extended  chain polyethylene fabric, and covering the fabric with more of the resin. Also disclosed are reinforcing materials (preferably a plasma-coated Spectra TM fabric), and dental appliances or prostheses reinforced by a lightweight, woven aramid or extended chain polyethylene fabric.
Patent CA-2036786-A1 (CA)
Inventor: MAINOLFI SYLVIO J
IPC: B29C65/06
Filed: 1991-02-21
Abstract: ABSTRACT OF THE DISCLOSURE Carpeted panels comprising a thermoplastic substrate and a synthetic fiber carpet are produced by bonding the respective parts to one another using a vibration welding apparatus for causing the generation of frictional heat at the interfacebetween the substrate and the carpet. One of the platen of the welding apparatusconfronting the carpet is provided with a pattern of closely spaced pins engaging the carpet and urging the carpet into forced engagement with the substrate. On account of the closely spaced pins and the relatively low amplitude of the reciprocatingmotion, a bond is achieved substantially over the entire interface between the carpet and the substrate.
Patent CA-2039644-A1 (CA)
Title: Easy-open and reclosable container
Inventor: MORTON JAY
IPC: B65D17/50
Filed: 1991-04-03
Abstract: ABSTRACT    An easy-open and reclosable container has a non-circular scored portion on the top lid and an opening and resealing device pivotally fastened on the scored por-tion for selectably separating it from the top lid to pro-vide an aperture, and selectably resealing the aperture by putting the separated portion back into the aperture and rotating it so as to lock it under the inner surface of the top lid.  The opening and resealing device has a compression sealing member for resealing the aperture while the scored portion is locked.  As an alternative, the easy-open and reclosable container can utilize an openable and reclosable device which includes a bottom flange member fastened on the top lid having a flange rim extending through an opening on the top lid, a closure member hingedly connected to the rim in part and having a channel complementary in shape with the flange rim, and a tension controlling member hingedly con-nected to the closure member and separable engaged with a rivet on the top lid for selectably releasing the pulling force on the closure member to allow it to open and selectably re-exerting the pulling force on the closure mem-ber to reclose the container.  The present invention further provides a triangular cylindrical beverage container which can save storage space.
Patent CA-2041291-A1 (CA)
Inventor: HUVEY MICHEL
IPC: F16L11/115
Filed: 1991-04-26
Abstract: PROCEDE DE FABRICATION D'UNE STRUCTURE CREUSE UTILISABLE NOTAMMENT POUR LE STOCKAGE DE FLUIDES SOUS PRESSION ET STRUCTURE RESULTANTE La structure creuse selon l'invention est obtenue en courbant sur une partie de sa longueur un tube ondulé garni circonférentiellement dans le creux de ses ondes par une composition durcissable renforcée de fibres, puis en soumettant le tube ainsi courbé sur au moins une partie de sa longueur à un traitement permettant Le durcissement de la composition durcissable. Le tube peut comporter des renforts longitudinaux, (tresse ou nappes de fils hélicoïdaux à grand pas), les extrémités du tube pouvant être équipées de systèmes permettant la communication avec l'extérieur ou la fermeture étanche, la mise en forme définitive étant suivie d'un traitement de durcissement de ladite composition. L'enroulement du tube peut être effectué autour d'un noyau central ou tambour.
Patent CA-2044218-A1 (CA)
Inventor: BARNES JOHN A
IPC: C09D1/00
Filed: 1991-06-10
Abstract: PROTECTIVE BARRIERS      Barriers against atomic  oxygen attack, eg  on substrates such  as arts of space vehicles in low  earth orbit, consist of layer  minerals, specially vermiculite and selected smectites.
Patent CA-2045047-A1 (CA)
Inventor: GRASSIN D ALPHONSE EMMANUEL
IPC: G02B6/38
Filed: 1991-06-20
Abstract: A B R E G E Société Anonyme dite : RADIALL Pour : Connecteur pour fibres optiques à verrouillage et déverrouillagerapides Invention : GRASSIN D'ALPHONSE Emmaneul - DUBOIS Serge - VALADE Norbert Connecteur pour fibres optiques comportant deux embouts montés à l'extrémité de chacune des fibres à connecter et un raccord femelle de reconstitution (1) pour supporter et aligner les deux embouts face à face; chacun des embouts est logé dans un corps de fiche fixé au câble optique comportant la fibre optique à connecter, et chacun des corps de fiche et le raccord comportent des moyens de verrouillage à encliquetage (29,16); un capot de manoeuvre (3) est monté autour de chacun des corps de fiche. Le raccord femelle de reconstitution (1) comporte une pièce tubulaire axiale (10) dont la surface extérieure (15) constitue une portée de guidage mécanique du corps de fiche et dont au moins une partie de la surface intérieure sert de portée de guidage mécanique de l'embout dans le raccord (1).