baber/WOPTO huggingface dataset:
Patent CA-2016010-A1 (CA)
Title: Interchangeable control panels and keypads for radio transceivers and related process
Inventor: HODSDON ROY F
IPC: H04M1/7246
Filed: 1990-05-03
Abstract: ABSTRACT       A radio transceiver comprising a housing including a front cover, a plurality of interchangeable control panels adapted for selective alternative attachment to the front cover, and a plurality of interchangeable, keypads adapted for selective alternative attachment to the front cover in underlying relationship with a respective one of the control panels, wherein each control panel is configured for use with a similarly configured one of the keypads. Each of the control panels comprises a relatively thin planar member having front and rear faces and defined by upper, lower and a pair of side edges, and includes a projection or locking bar extending along and away from the upper edge, and fastening means located adjacent the lower edge. A standardized electronic circuit board is provided within the unit, some or all of the switches included on the circuit being accessible, depending on the particular keypad and control panel employed.
Patent CA-2017448-A1 (CA)
Title: Appareil de transmission mecanique automatique a variation continue du rapport de transmission depuis un rapport infini jusqu'a un rapport inferieur a 1/1
Inventor: GUICHARD LOUIS
IPC: F16H33/08
Filed: 1990-05-24
Abstract: 16 Un appareil de transmission mécanique automatique à variation continue du rapport de transmission depuis un rapport infini jusqu'à un rapport inférieur à 1/1, du type faisant appel à des forces centrifuges, comporte au moins un plateau mené (3) portant au moins une piste circulaire continue (13), excentrée par rapport à l'axe commun (0) des arbres menant et mené, et des galets (4) qui roulent à l'intérieur de la piste circulaire (13), en étant montés à rotation autour d'axes longitudinaux respectifs (B), chacun de ces galets (4) étant porté par une biellette (5) reliée à un axe d'articulation (C) sur le moyeu menant (1). Chaque biellette (5) portant un galet (4) est articulée sur la partie externe d'une masselotte (6) qui est elle-même articulée sur le moyeu (1) solidaire de l'arbre menant (2). (Figure 2)
Patent CA-2018779-A1 (CA)
Title: Bearing grease for rock bit bearings
Inventor: LANDRY DAVID K
IPC: C10M125/22
Filed: 1990-06-12
Abstract: ABSTRACT OF THE DISCLOSURE    A heavy  duty  lubricating  grease  as  shown  which includes  a  multi-purpose  heavy  duty  hydrocarbonaceous lubricant  thickened  by  an  alkaline  soap  to  form lubricating  grease,  molybdenum  disulfide  and powdered calcium fluoride.  The heavy duty grease can be used in a journal  bearing of a  drill  bit  in  heavy  duty,  high temperature applications, such as journal bearings on its used to drill hot subterranean formations.
Patent CA-2021130-A1 (CA)
Title: Full surface contact internal floating roof
Inventor: COATES STEVEN J
IPC: B65D90/08
Filed: 1990-07-13
Abstract: "FULL SURFACE CONTACT INTERNAL FLOATING ROOF"               Abstract of the Disclosure A  full  surface  contact  internal  floating  roof  is provided.    More particularly,  an  assembly  utilized  in  the construction of such a floating roof involves, a urethane foam-filled panel having a PVC outer skin.  A PVC I-beam is used to interconnect two adjacent panels.  A PVC cement, compatible with the PVC outer skin and PVC I-beam is used to form a welded joint between the panels and the I-beam.
Patent CA-2022345-A1 (CA)
Title: Electrophotographic photoreceptor
Inventor: NOZOMI MAMORU
IPC: G03G5/05
Filed: 1990-07-31
Abstract: Abstract of the Disclosure Disclosed herein is an electrophotographic photoreceptor having on a conductive base at least one charge generation layer and at least one charge transport layer, said charge transport layer having the thickness of 27 µm or above and being formed with a coating solution containing a condensation polymer of the viscosity-average molecular weight of 15,000 to 25,000 as a binder resin according to the dip coating method. The electrophotographic photoreceptor according to the present invention has the excellent durability because the resultant charge transport layer has the increased and uniform thickness without changing the electric properties, especially the charged potential.
Patent CA-2022960-A1 (CA)
Inventor: BASHARK LARRY T
IPC: D06F34/08
Filed: 1990-08-09
Abstract: A control for an automatic washing machine with a reversing permanent split capacitor (PSC) drive motor.          Separate ferrite core sensors surround each of two PSC motor windings.  A sense winding is threaded through both sensors.          A brief output voltage is generated whenever the alternating current in either PSC motor winding passes through a zero-crossing and when the sense winding is wound with proper mutual polarity, an output voltage is generated in response to zero-crossings of a brief, residual alternating current which flows in both PSC motor windings and the capacitor when the rotating PSC motor is cycled OFF.  The circuitry, in combination with the sensors, samples the leading or lagging phase angle of the PSC motor auxiliary or main winding, respectively, at a sample rate of two-times the line frequency when the PSC motor is ON.  The raw PSC motor phase data is used in microcomputer programs to compute motor start time or load torque dither.  This computed information and the PSC motor braking data, is used by other software programs to automatically control various functions of the washing machine such as the fill water level and agitator stroke angle; to control events in an operational sequence such as the duration of the agitation and spin operations; and to provide diagnostic information such as spin off-balance detection.
Patent CA-2023466-A1 (CA)
Title: Polymer stabilizers containing both hindered amine and nitrone moieties
Inventor: SUHADOLNIK JOSEPH
IPC: C09K15/30
Filed: 1990-08-16
Abstract: A-17703/+/CGC 1442 POLYMER STABILIZERS CONTAINING BOTH HINDERED AMINE AND NITRONE MOIETIES            Abstract Compounds possessing both a hindered amine moiety, such as a derivative of 2,2,6,6-tetramethylpiperidine, and a nitrone moiety are valuable stabilizers for protecting polymer compositions against the deleterious effects of actinic light and from the adverse effects of high temperature polymer processing environments. Additionally, the instant compounds present the opportunity for grafting onto performed polymer backbones.
Patent CA-2024124-A1 (CA)
Title: Heterogeneous synthesis of azepinones from esters
Inventor: MARTIN DANIEL E
IPC: A61K31/554
Filed: 1990-08-28
Abstract: An amino-acid ester compound can be cyclized into a cyclic amido-carbonyl compound by contacting the amino-acid ester compound in a liquid medium with a heterogeneous acidic ion-exchange substance. For example, 2-hydroxy-3-(2-aminophenylthio)-3-(4-methoxyphenyl)propionic acid, methyl ester, threo form, can be cyclized in an aqueous mixture into cis-2-(4-methoxyphenyl)-3-hydroxy-2,3-dihydro-1,5-benzothiazepin-4(5H)-one by employing a sulfonated polystyrene-divinylbenzene ion-exchange resin in its acid form, e.g., Dowex 50X4-400, at yields exceeding 85 percent of theory, and the product can be used to make diltiazem hydrochloride.
Patent CA-2024232-A1 (CA)
Title: Method and Apparatus for Reviving an Electrode of a Biosensor
Inventor: INAMOTO TOMOYUKI
IPC: G01N27/327
Filed: 1990-08-29
Abstract: After a reverse bias is applied between a working electrode and a counter electrode ar a reference electrode, a forward bass higher than a forward measurement bias is applied between the working electrode and the counter electrode or the reference electrode before the forward measurement bias is applied. This reduces a time period before an actual measuring operation is possible.
Patent CA-2025399-A1 (CA)
Inventor: ILENDA CASMIR S
IPC: C08F255/00
Filed: 1990-09-14
Abstract: This invention provides an improved adhesive layer for multi-layer films and bottles, the adhesive layer being a graft copolymer of a polyolefin backbone with a methyl methacrylate graft. The graft copolymer sufficiently improves the compatibility between barrier resins and polyolefins to permit the production of monolithic or single layer bottles comprised of a blend of those three components. The resultant products have improved physical properties while retaining acceptable permeability to gases.
Patent CA-2028014-A1 (CA)
Title: Ramp king with folding tailgate
Inventor: HASKELL ROBERT W
IPC: B60P1/43
Filed: 1990-10-19
Abstract: ABSTRACT OF THE DISCLOSURE           A vehicle tailgate ramp assembly comprising a plurality of rectangular panels pivotally connected to each other in such a way that the assembly can be used as loading ramp when the panels are unfolded.  A panel acts as a completely closed tailgate when the panels are folded onto one another.
Patent CA-2028892-A1 (CA)
Inventor: GOERGEN RENE
IPC: B60C11/12
Filed: 1990-10-30
Abstract: A tire tread (11) comprises first and second straight grooves (30, 31) which extend circumferentially about the tire, one of said straight grooves being disposed on either side of the equatorial plane (EP) of the tire and delimiting a central portion and two shoulder portions. A plurality of laterally extending zig-zag grooves (32, 37; 33, 34) on either side of the equatorial plane each comprises two sets of legs, a first set of three legs (32A, 32B, 32C) extending across the shoulder portion and a second set of two legs (32D, 32E) extending into the central portion, the first and second sets of legsbeing circumferentially offset by said straight circumferential groove. The lateral sides of the fifth leg (34E) of each laterally extending zig-zag groove nearest to the equatorial plane (EP) continue towards the equatorial plane via narrow grooves which merge each into one of the two narrow grooves extending from the fifth leg of a laterally extending zig-zag groove situated on the opposite side of the equatorial plane. The circumferential and lateral grooves cooperating to define rows (50, 51) of interpenetrating blocks. In one embodiment each land portion tread blocks 50, 51,  52, 53, have sipes 26 originating in a circumferential groove 30, 30 substantially halfway between the leading and trailing edge of the land portion.
Patent CA-2029019-A1 (CA)
Inventor: DERRICKSON G STEPHAN
IPC: H01S3/036
Filed: 1990-10-31
Abstract: UNLUBRICATED BEARINGS FOR GAS LASERS       ABSTRACT OF THE DISCLOSURE           Ceramic bearings and races, each coated or implanted with metal, glass, boron fibers, carbon fibers, jade or horneblende are disclosed as bearings for the fan assembly of a laser.  The bearings and races may be silicon nitride implanted with gold and may be used in the laser without potentially contaminating supplemental lubricants.
Patent CA-2029129-A1 (CA)
Inventor: DABI SHMUEL
IPC: A61F13/56
Filed: 1990-11-01
Abstract: Sanitary napkins and other absorbent products as well as a method for their use are provided by this invention.      The sanitary napkin includes wick means disposed on a body-facing side of the napkin which is biased away from the body-facing side to provide a body-contacting portion disposed in a different plane from the plane of the body-facing side.
Patent CA-2031063-A1 (CA)
Title: Silicone paints for protection of silicone elastomeric coating materials
Inventor: FEY KENNETH C
IPC: C08L83/07
Filed: 1990-11-28
Abstract: SILICONE PAINTS FOR PROTECTION OF SILICONE ELASTOMERIC COATING MATERIALS            ABSTRACT         A cured silicone elastomeric substrate can be protected and/or decorated with a paint composition, without the usual priming step, by applying a silicone-based paint composition to the cured silicone substrate.  The substrate is preferably deglossed before being painted.  The silicone-based paint composition can be any of the well-known silicone-based paints or the new silicone-based paint disclosed herein.
Patent CA-2032569-A1 (CA)
Title: Boitier d'entree d'air isophonique
Inventor: CUSSENOT JEAN-PAUL
IPC: E06B7/02
Filed: 1990-12-18
Abstract: Titre : Boîtier d'entrée d'air isophonique Au nom de : L'invention concerne un boîtier d'entrée d'air isophonique constitué d'une coquille de section en forme de U comportant un revêtement absorbant d'isolation acoustique intérieur et sur au moins une de ses parois longitudinales au moins un trou de sortie de flux d'air (11). Ce boîtier (10) est équipé d'un ajutage 12 dirigeant l'air rentrant vers une (13) des parois longitudinales intérieures du boîtier (10), cette paroi longitudinale intérieure (13) étant recouverte d'une couche matériau absorbant (13') constitué d'une mousse à cellules fermées en surface, tandis que le fond du boîtier (14) est également revêtu d'une couche de matériau absorbant (14') et que l'autre paroi longitudinale intérieure (15) du boîtier est dépourvue de matière absorbante. Cet agencement exploite le phénomène de membrane se réalisant au niveau phonique à la réflexion du son sur la paroi lisse du matériau absorbant. Ainsi est réalisé d'une part, une économie appréciable de coût de fabrication puisque le volume de mousse est diminué, et d'autre part un gain d'absorption acoustique appréciable. Figure 1.
Patent CA-2033351-A1 (CA)
Title: Preparation of very low molecular weight polyethylene in a fluidized bed
Inventor: THEOBALD EUGENE H
IPC: C08F10/00
Filed: 1990-12-28
Abstract: ABSTRACT OF THE DISCLOSURE       Ethylene homopolymers or copolymers having a very low molecular weight are continuously pre-pared in a fluidized bed in the presence of high concentrations of hydrogen, while maintaining high catalyst activity, by means of a vanadium-based catalyst.
Patent CA-2033457-A1 (CA)
Title: Electrical switch for hazardous environments
Inventor: KURTZ MICHAEL A
IPC: H01H9/04
Filed: 1990-12-31
Abstract: ELECTRICAL SWITCH FOR HAZARDOUS ENVIRONMENTS          Abstract of the Disclosure An  electrical   switch  for  hazardous  environments includes a non-metallic terminal base supporting a plurality of stationary contacts. A non-metallic operator body has a radial wall and tubular outer wall extending from the radial wall.  The outer wall has a free end coupled to the terminal base and defines a contact chamber inside of the operator body.   The  radial  wall  has  a  central  passageway  and  a tubular inner wall extending from the radial wall toward the terminal base substantially concentrically to the outer wall and the passageway.  A non-metallic operator member has an annular portion slidably received in the passageway between first  and  second  positions,  and  has  a  radial  portion extending  from  the  axial  portion with  a  tubular  flange extending from it substantially concentrically to the axial portion.   The operator member tubular  flange  is slidably received between and overlaps the inner and outer walls of the operator body in both of the first and second positions of  the  operator  body.   An  operator  is  coupled  to  the operator  member  for  movement  between  open  and  closed positions in response to movement of the operator member between its first and second positions.  Movable contacts are mounted on the operator for simultaneous movement with the operator between positions engaging and disengaging the stationary contacts on the terminal base.
Patent CA-2034961-A1 (CA)
Title: Electrically controllable pressure medium brake for vehicles
Inventor: HOMMEN WINFRIED
IPC: B60T13/66
Filed: 1991-01-25
Abstract: Abstract The electrically controllable pressure medium brake exhibits an EP converter (1) to convert an electric brake request signal into a brake pressure. By means of an emergency brake valve (1) this brake pressure in the normal case, in states of emergency a vehicle 1oad-dependent emergency brake pressure 1imited by a limiting valve (12) is fed to the brake cylinder (14). For vehicle load-dependent limiting of the emergency brake pressure, a second EP converter (1a) is provided that generates from a vehicle load-dependent, electric signal a vehicle load-dependent pressure medium pressure, which is stored in a pressure medium store (18) and is fed to the limiting valve (12) in order to control it.  The second EP converter (1a) is closed in the currentless state, during a power failure, therefore, the vehicle load-dependent pressure medium pressure remains preserved and the limiting valve (12) can thus continue to limit the emergency brake pressure as a function of the vehicle load. In another embodiment supplemented with a switching valve, only one EP converter can be provided that serves to generate both the brake pressure and the vehicle load-dependent pressure medium pressure.
Patent CA-2035029-A1 (CA)
Title: Synthesis of stable water-soluble chemiluminescent 1,2-dioxetanes and intermediates therefor
Inventor: EDWARDS BROOKS
IPC: C07F9/6561
Filed: 1990-09-04
Abstract: A novel synthesis of compounds having the formula: (See formula I) wherein T is a stabilizing spiro-linked polycycloalkyli-dene group, R3 is a C1-C20 alkyl, aralkyl or heteroatom containing group, Y is an aromatic fluorescent chromo-phore, and Z is a cleavable group which, when cleaved, induces decomposition of the dioxetane ring and emission of optically detectable light, is disclosed. A tertiary phosphorous acid alkyl ester of the formula: (R1O)3P wherein R1 is a lower alkyl group, is reacted with an aryl dialkyl acetal produced by reacting a corresponding aryl aldehyde with an alcohol of the formula:   wherein R3 is as defined above, to produce a 1-alkoxy-1-aryl-methane phosphonate ester of the formula: (See formula II)
Patent CA-2036481-A1 (CA)
Inventor: TALWAR ASHOK K
IPC: H04B1/12
Filed: 1991-02-15
Abstract: An interference cancellation system automatically couples and decouples itself from a radio receiver system when no interfering signals are present. The interference cancellation system, which is adapted to be connected to the radio receiver system having a receiver antenna, a receiver and a receiver transmission line interconnecting the receiver antenna and the receiver, includes an auxiliary antenna, a first directional coupler connected to the auxiliary antenna, a second directional coupler connected to the receiver transmission line, a third directional coupler connected to the first directional coupler, a synchronous detector connected to the third and second directional couplers, a signal controller connected to the synchronous detector and a subtractor connected to the receiver transmission line and to the signal controller. A detector is connected to the third directional coupler, and a comparator is connected to the detector and is provided with a predetermined threshold voltage level. The comparator compares the detected output signal from the detector with the predetermined threshold voltage level, and provides an output signal to a switch circuit interposed between the signal controller and the subtractor. When an interfering signal is detected, the switch circuit provides an electrical path from the signal controller to the subtractor so that a cancellation signal may be injected into the receiver transmission line. If no interfering signal is detected, the switch circuit opens the connection between the signal controller and the subtractor so that no noise from the interference cancellation system is injected into the radio receiver system.
Patent CA-2037889-A1 (CA)
Title: Image creation in solid material with grey scale capabilities
Inventor: OVERDULVE ADRIAAN D
IPC: B44C1/00
Filed: 1991-03-08
Abstract: Abstract:          This invention relates to: The creation of an image of various resolutions on a solid material member with true grey scale capabilities by creating holes of different depths in the said materials. The method of creating the holes may vary and is not part of this invention.          To create a true grey scale image on a solid material the hole depth isimportant and the amount of holes created will determine the resolution and the size of the image.
Patent CA-2038953-A1 (CA)
Title: Process for the removal or reduction of gaseous contaminants
Inventor: STAUDINGER GERNOT
IPC: B01D53/68
Filed: 1990-07-27
Abstract: Summary The invention concerns a process for removal or reduction of gaseous contaminants, especially SO2, SO3, HCl and HF, from flue gases through chemisorption, whereby a solid, fine-grained sorbent is treated by steam in a reactor before being brought into contact with the flue gas; by the sorbent before entering the reactor being brought to a temperature of preferably 10 to 50°C below the dewpoint of steam in the reactor; and by the sorbent being brought into contact in the reactor with steam of a temperature not higher than 60°C above, and preferably 10 to 40°C above, the dewpoint temperature.
Patent CA-2040097-A1 (CA)
Title: Urethane polymers for printing plate compositions
Inventor: YOKOYAMA WAKO
IPC: C08G18/32
Filed: 1991-04-09
Abstract: URHANE POLYMERS FOR PRINTING PLATE COMPOSITIONS     ABSTRACT OF THE DISCLOSURE A urethane polymer having free carboxyl groups on the backbone of the polymer and terminal methacrylate groups is prepared by (1) reacting a mixture of at least two aliphatic diols and an aliphatic dihydroxy mono- or dicarboxylic acid with an excess of an aliphatic, cycloaliphatic or aromatic diisocyanate in the presence of a catalyst to produce an isocyanate-terminated urethane polymer and (2) reacting the terminal isocyanate groups of the product of step (1) with an aliphatic monohydroxy methacrylate.  The polymer can be used in photopolymerizable compositions for making tack-free flexographic printing plates.
Patent CA-2042393-A1 (CA)
Title: Plasma-irradiated solid preparation
Inventor: KUZUYA MASAYUKI
IPC: A61K9/22
Filed: 1990-12-12
Abstract: Abstract By forming a multi-layer preparation comprising a tablet or granule containing a medicine as the core and the outermost layer comprising a plasma-decomposable polymer and a plasma-crosslinkable polymer and irradiating the outermost layer with a plasma about release-regulating preparations according to the plasma irradiation, the direct exposure of the medicine to the plasma can be avoided and the release pattern can be controlled more easily.
Patent CA-2043249-A1 (CA)
Title: Seismic surveying
Inventor: JACKSON GEOFFREY MICHAEL
IPC: G01V1/00
Filed: 1991-05-24
Abstract: ABSTRACT            A method of seismic surveying uses seismic waveguides in the earth.  Seismic energy is transmitted from outside the waveguide and detected within the waveguide or vice-verca.  Coupling of energy between the outside and the inside of the waveguide is effected by energy leakage at coupling sites where the waveguide departs from planarity.   The method analysers seismic signals to determine the position and nature of coupling sites and the propagation characteristics of the waveguide.
Patent CA-2044245-A1 (CA)
Title: Method of storing vegetables and/or fruits and a refrigerating container therefor
Inventor: KAWAI TAMOTSU
IPC: B65B25/04
Filed: 1990-10-02
Abstract: ABSTRACAT This invention relates to a method of precooling precooled materials such as fruits and vegetables under vacuum, and keeping it in a precooled state for a long time. and to a refrigerating container therefor.  Precooling and keeping the precooled state for a long time have been regarded as impossible in the past. but these problems are resolved in this invention even for materials closely stored in the container.  This container is formed with ventilating communication conduits of a desired length for providing communincation between the inside and outside of the container when the container is closed.  As a result  the materials such as the fruits and vegetables can be transported a long distance and stored for a long time with an increased reliability of freshness, yet without deteriorating precooling effects.
Patent CA-2047022-A1 (CA)
IPC: H04B10/58
Filed: 1991-07-15
Abstract: A direct modulation phase shift keying transmission system (DM-PSK transmission system) is disclosed for coherent optical fiber transmission in which an injection current supplied to a semiconductor laser is adapted to be directly modulated.  This system presents useful features in automatic frequency control, demodulation, and phase noise suppression.