baber/WOPTO huggingface dataset:
Patent CA-2031706-A1 (CA)
Title: Mixtures of pyramidal columnar liquid crystals and procedure for their preparation
Inventor: DALCANALE ENRICO
IPC: C07C69/33
Filed: 1990-12-06
Abstract: Abstract Mixtures of pyramidal columnar liquid crystals made up of dodeca-substituted derivatives of macrocyclic tetramers wherein each of the substituents is either linear or branched alkanoyl chain of different lengths and randomly distributed. these mixtures  show stable mesophases of the columnar type having a wide temperature range which also includes room temperature.
Patent CA-2033780-A1 (CA)
Inventor: BEASOM JAMES D
IPC: H01L21/331
Filed: 1991-01-08
Abstract: The occupation area and thickness of dielectrically isolated island-resident transistor structures, which employ a buried subcollector for providing low collector resistance at the bottom of the island, are reduced by tailoring the impurity concentration of a reduced thickness island region to provide a low resistance current path from an island location directly beneath the base region to the collector contact. The support substrate is biased at a voltage which is less than the collector voltage, so that the portion of the collector (island) directly beneath the emitter projection onto the base is depleted of carriers prior to the electric field at that location reaching BCVEO, so as not to effectively reduce BVCEO. Since the support substrate bias potential depletes some of the region of the island beneath the base region of carriers, the doping of the island can be increased compared to the case where the substrate is not biased, while maintaining the electric field at this location less than the BVCEO field.
Patent CA-2035755-A1 (CA)
Title: Document file
Inventor: MITSUYAMA MASUHIRO
IPC: B42F7/08
Filed: 1991-02-06
Abstract: Abstract of the Disclosure A document file in which a plurality of compartments formed of soft synthetic resin sheet material are connected contiguously in an accordion-like fashion and mounted between a pair of covers includes auxiliary sheets attached along both side edges and a bottom edge to each of the covers.  Each of the covers includes a thick paper pad mounted between the two resin sheets.  The pads are laterally shorter than the resin sheets and mounted so as to leave spaces at the end portions thereof so that side edges of the cover can be bent inward like a bow such that the auxiliary sheet buckles away from the cover and forms an opening at the top edge portion thereof.  In addition, when both side edges of the covers retreat to their original position, the top edge of the auxiliary sheet becomes tightly sealed against the cover so as to prevent contents contained therebetween from coming out of the opening.
Patent CA-2035791-A1 (CA)
Title: Cost effective fluid line status sensor system
Inventor: BARTON SERGE P
IPC: G01P13/00
Filed: 1991-02-06
Abstract: PATENT 55,487 ABSTRACT OF THE DISCLOSURE A  sensor  assembly  comprising  a  rod-shaped thermally  conductive  element  oriented  radially  with respect  to  a  flow pipe  and  two  or more  thermocouples installed on the thermally conductive element.  A first end of the thermally conductive element is arranged in contact with or in thermal communication with the outer periphery of the pipe, while a second end of the thermally conductive element is spaced from the pipe.   As a result of heat conduction through the pipe to the first end, a temperature gradient  is  provided  across  the  thermally  conductive element.   The temperature gradient exhibits a relatively high temperature near the first end and a relatively low temperature near the second end.   The thermocouples are installed along  the  length  of the thermally conductive element.   One thermocouple is arranged nearer to the pipe than the other thermocouple.  Temperature dependent signals obtained from the thermocouples are transmitted to suitable evaluation  electronics.    The evaluational  electronics determines  a  temperature  difference between  the  two thermocouples  based  on  the  thermocouple  signals.    The temperature  difference  is  then  compared  with  known  or preset values to determine the flow status of the pipe.
Patent CA-2036672-A1 (CA)
Title: Rosin monomaleimides
Inventor: SANDSTROM PAUL H
IPC: C07D207/448
Filed: 1991-02-19
Abstract: Abstract of the Disclosure ROSIN MONOMALEIMIDES      The present invention relates to rosin monomaleimides which are useful as a total or partial replacement for extender or processing oil in rubber formulations.  Addition of the rosin monomaleimides improve peel adhesion in rubber compositions.  The rosin monomaleimides are prepared by reacting abietylamine and/or dehydroabietylamine with maleic anhydride.
Patent CA-2038162-A1 (CA)
Inventor: DUONG KHUE
IPC: H03K19/173
Filed: 1991-03-13
Abstract: A structure especially useful in a configurable logic array includes a plurality of conductive interconnect lines located along the perimeter of a logic array chip. Lines running from exterior pins or pads can be used by a programmable interconnect circuit to control signals applied to these interconnect lines.  In particular, both the signal and the complement of the signal can be used by the programmable interconnect to control application of a supply voltage to an interconnect line.  A second supply voltage is applied through a resistor to the interconnect line with the result that the interconnect line will carry a logical signal representing a logical function, for example AND, of a selected set of input signals or their complements.  Lines running from points interior to the configurable logic array chip may also contribute to the signal generated on an interconnect line.  In one embodiment, bidirectional programmable interconnect circuits allow the input pins to function as either input or output pins.  An application of the decoder circuit is described for use with a latch as a data/address demultiplexer.
Patent CA-2042010-A1 (CA)
Inventor: ERZ JOSEPH M
IPC: F26B23/08
Filed: 1991-05-07
Abstract: A continuous radio frequency dryer that includes a dryer housing and a conveyor extending through the housing. The conveyor is made up of a series of conveyor rolls spaced from each other, and a pressure roll is above and parallel to each conveyor roll.      Plural sets of electrodes alternate with the conveyor rolls, and the electrodes are supplied radio frequency energy. Air is circulated through the housing.
Patent CA-2042012-A1 (CA)
Inventor: FIRTH JOHN R
IPC: A61M5/24
Filed: 1991-05-07
Abstract: An improved hypodermic syringe is disclosed.  The syringe is stackable, disposable, non-reuseable, and is structured so as to prevent accidental stabbing prior to or after use, and also permits insertion of the needle with a preferred orientation.  The needle is rendered unusable following use.  At the same time, the needle permits precise measurement of amount of injected or withdrawn fluid.  The needle is retractable after use, with one finger.  One embodiment of the invention provides a double-needle structure.
Patent CA-2042094-A1 (CA)
Inventor: DALE JAMES L
IPC: G01M1/30
Filed: 1991-05-08
Abstract: A combination tire and rim assembly match mounting, match grinding and balancing machine has a load roller for contacting the mounted tire periphery with a predetermined force.  The displacement of the roller provides a measure of tire radial runout and either a vision system or mechanical probes provide a measure of rim radial runout.  A controller operates to calculate the least squares best fit between the tire and the rim and to control the match grinding to provide improvement in the tire and rim assembly operating vibration characteristics.
Patent CA-2042328-A1 (CA)
Title: Balanced sleeve control choke
Inventor: PETTUS RONALD G
IPC: F16K39/02
Filed: 1991-05-10
Abstract: A balanced sleeve control choke includes a choke with inlet and outlet flow passages intersecting in a cylindrical flow chamber. A balanced external sleeve and cage trim configuration which vents downstream pressure to a balance chamber within the choke body includes an external sleeve with a wear sleeve of tungsten carbide shrink fitted therein is reciprocable within the flow chamber to control flow between the inlet and outlet flow passages. The external sleeve is closed at one end with a stem extending therefrom which is reciprocated by a handwheel operated travelling nut assembly. The external sleeve telescopes over a flow cage of composite construction secured within the flow chamber with a portion of the flow cage constructed of tungsten carbide with pressure balancing ports therethrough. The external sleeve has parts disposed within its wall which communicate downstream pressure to a balance chamber disposed thereabout. The flow cage has a seal neck extending from a closed upper end with a seal assembly disposed thereon which seals within the external sleeve and acts in conjunction with the balance chamber to eliminate any pressure forces on the travelling nut assembly.
Patent CA-2045977-A1 (CA)
Title: Waste disposal system
Inventor: BOADWAY MIKE
IPC: B65F1/14
Filed: 1991-06-28
Abstract: ABSTRACT      A modular waste sorting and stirage system comprising a sliding frame structure adapted to be secured in a cupboard, one or more modular wire frames adapted to hold waste receiving apparatus and apparatus for removably attaching the one or more modular wire frames to the sliding frame structure.
Patent CA-2046667-A1 (CA)
Title: Massaging device
Inventor: KOLL WALTER
IPC: A61H15/00
Filed: 1991-07-10
Abstract: ABSTRACT OF THE DISCLOSURE      In a massaging device, a fork-shaped part is arranged on a handle  o as to oscillate about a swivelling spindle.  The fork-shaped part has a rolling-body is rotatably mounted.  By virtue of the oscillating arrangement of the fork-shaped part, the rolling-body axis can tilt to a limited extent to both sides out of a position extending parallel to the handle.  The rolling body has a plurality of disks which are arranged individually so as to be rotatable on the rolling-body axis and, on their circumferential surface, have a toothing which rolls over the skin to be massaged during the use of the massaging device.
Patent CA-2050363-A1 (CA)
Inventor: FUJIMURA YASUSHI
IPC: H01L31/105
Filed: 1991-08-30
Abstract: Abstract of the Disclosure A region of a second conductivity type is selectively formed in a portion of a semiconductive layer of a first conductivity type to form a pn junction area which serves as a photo-sensing region.          A metal film is formed on a surface of the semiconductive layer of the first conductivity type to surround the photo-sensing region.  When a light to be directed to the photo-sensing region spreads outside the photo-sensing region, the light is reflected by the metal film provided on the surface of the semiconductive crystal layer around the photo-sensing region.  Accordingly, the light does not reach the photo-sensing layer of the semiconductive crystal layer and the generation of undesired carriers is prevented.
Patent CA-2052395-A1 (CA)
Title: Catalyst and a method of preparing the catalyst
Inventor: TERUI SADAO
IPC: B01D53/86
Filed: 1991-09-27
Abstract: CATALYST AND A METHOD OF PREPARING THE CATALYST     ABSTRACT OF THE DISCLOSURE    The catalyst according to the present invention can be utilized effectively as an ozone decomposing catalyst for catalytically decomposing to eliminate ozone contained in a gas or as an ozone deodorizing catalyst for decompo-sing offensive odor ingredients contained in a gas by catalytic oxidation under the pretense of ozone, and it comprise a composition containing Mn oxide, metal Pd and/or Pd oxide as the essential ingredients formed as a thin film on a support.  Further, the performance of the catalyst can be improved by using Mn oxide and Pd as the essential ingredient and using an alumina sol as a binder upon preparation.
Patent CA-2056536-A1 (CA)
Inventor: GROSSENBACHER ERNEST JR
IPC: B23Q1/36
Filed: 1991-11-28
Abstract: Dkt. No. 35-OR-863 ABSTRACT OF THE DISCLOSURE         To accommodate differential thermal growth of a component and its support, a pair of temperature responsive mounts are provided. Each mount comprises a rigid, bowed beam having lugs at each end affixed to the component and an intermediate lug affixed to the case.          Thermal expansions of the beams and the component load the beams in compression, causing flexures thereof in directions to produce motions of the third lugs that track the thermal growth of the support.
Patent CA-2057230-A1 (CA)
Title: Virtual secondary surveillance radar using signals of remote ssr
Inventor: LITCHFORD GEORGE B
IPC: G01S13/78
Filed: 1991-12-06
Abstract: ABSTRACT OF THE DISCLOSURE          A virtual secondary surveillance radar (VSSR) of the type described in U.S. Patent No. 4,115,771 can produce inaccurate or indeterminate range information for a trans-ponder positioned on or near a line between the actual SSR and the VSSR, owing to unfavorable geometrical relationships.          This can be avoided by receiving the SSR interrogation and reply signals at two or more separated locations and proces-sing the signals to provide positional information at a display site.  No radar transmissions other than those of the existing ATCRBS are required.
Patent CA-2059722-A1 (CA)
Title: Fiber optic backlighting panel
Inventor: MYERS J MICHAEL
IPC: G09F9/00
Filed: 1992-01-21
Abstract: A fiber optic panel provides backlighting in devices such as rubber keypads, membrane switches, liquid crystal displays, rigid panels, or the like.  The fiber optic panel comprises a light source for emitting light and a fiber optic cable which transmits the light to a plurality of different locations throughout the device.  The fiber optic cable comprises a plurality of optical fibers, each of which individually terminates at one of a plurality of different locations to illuminate that location.  Alternatively, the optical fibers individually terminate at evenly spaced locations throughout the device to illuminate a region uniformly.
Patent CA-2062858-A1 (CA)
Title: Aircraft cargo control system
Inventor: PRITCHARD ROBERT J
IPC: B64C1/20
Filed: 1992-03-12
Abstract: AIRCRAFT CARGO CONTROL SYSTEM      ABSTRACT OF THE DISCLOSURE           An aircraft cargo control system  (12) controls  powered  rollers  (24,  26)  for  moving pallets (28) in the cargo area of an aircraft (30). The control system (12) includes a joy stick (60) for controlling longitudinal movement on the right side  (46),  left side  (48),  or both sides,  and lateral movement into and out of the aircraft (30). The motor  (51)  of each roller  (24)  includes a sensor (90) and switch (76) for sensing a pallet (28)  thereover and powering the motor (51)  only when a pallet (28) is sensed and the joy stick (60) is appropriately selected.  Therefore, only powered rollers (24) moving the pallets (28) are powered, while the remaining rollers (24) remain unpowered.
Patent CA-2065761-A1 (CA)
Title: Fluidized bed reactor with extraction of particulate material
Inventor: ABDULALLY IQBAL F
IPC: F23C10/24
Filed: 1992-04-10
Abstract: FLUIDIZED BED REACTOR WITH EXTRACTION        OF PARTICULATE MATERIAL                   Abstract of the Disclosure A fluidized bed reactor in which housing is defined by a plurality of upright walls, each wall being formed at least in part by a plurality of tubes.  A horizontal grid plate extends across the housing and defines a upper combustion chamber for receiving particulate fuel material and a lower plenum for receiving a fluidizing gas, such as air, under pressure.  Air is passed upwardly from the plenum, through the grid plate and into the upper combustion chamber to fluidized the fuel material therein and promote its combustion.  Fluid is circulated through the tubes to cool the wall portions defining the combustion chamber and the plenum, and an extraction device is provided in the plenum for extracting the fuel particles that backflow from the upper combustion chamber, through the plate, and to the plenum.
Patent CA-2066880-A1 (CA)
Title: Continuous integrated process for producing dimethyl carbonate and methyl tert-butyl ether
Inventor: ANCILLOTTI FRANCESCO
IPC: G06F30/00
Filed: 1992-04-22
Abstract: CONTINUOUS INTEGRATED PROCESS FOR PRODUCING DIMETHYL CARBONATE AND METHYL TERT-BUTYL ETHER.                              ABSTRACT Dimethyl carbonate and methyl tert-butyl ether are prepared by a continuous integrated process comprising: a)   feeding methanol, carbon monoxide and oxygen into a reaction environment maintained under methanol oxidative carbohylation conditions, to form a liquid reaction mixture containing dimethyl carbonate and unaltered methanol; b)   at least partly eliminating the water from the reaction mixture of stage a); c)   feeding the dehydrated mixture of stage b) and isobutene, or a hydrocarbon fraction containing isobutene, into a reaction environment maintained under etherification conditions, to form a liquid reaction mixture containing dimethyl carbonate and methyl tert-butyl ether; and d)   recovering the dimethyl carbonate and methyl tert-butyl ether from the reaction mixture of stage c).
Patent CA-2068126-A1 (CA)
Title: Optical transceiver arrangement
Inventor: SIERENS CHRISTIAAN H J
IPC: H04J14/02
Filed: 1992-05-07
Abstract: Optical transceiver arrangement to transmit information signals (S1, .,  Sn) from a transmitter arrangement (T) to a receiver arrangement (R) over an optical waveguide (L).  This is achieved by modulating electrical subcarrier waveforms with these information signals (S1, ., Sn) using modulation means (M1, ., Mn). converting them to optical signals using electrical/optical convertors (E/01, ., E/01n), and by transmitting these optical signals. by means of time division multiplexing means (TDM1,.  , TDMn), in different time slots if the subcarrier waveforms have the same frequency.  The modulation- and time division multiplexing means are controlled by corresponding individual control modules (C1, ., Cn) under control of a central control module (CC) included in the receiver arrangement.
Patent CA-2069527-A1 (CA)
Title: Method for removing solids from systems containing water-based paints
Inventor: REY PAUL A
IPC: C02F1/52
Filed: 1992-05-26
Abstract: TITLE OF THE INVENTION          "IMPROVED METHOD FOR REMOVING SOLIDS FROM SYSTEMS CONTAINING WATER-BASED PAINTS"          ABSTRACT OF THE DISCLOSURE      Methods of treating circulating water containing over-sprayed, water-borne paint, alone or in combination with over-sprayed solvent-borne paint, as in a paint spray booth operation, comprise maintaining the alkalinity of the paint spray booth water between about 50 and 2000 ppm, on a calcium carbonate basis, by adding an alkalinity source thereto, maintaining the pH between about 6.0 and 9.0, adding a melamine polymer to the water, adding an aluminum salt to the water, contacting the over-sprayed paints with the alkalinity-adjusted paint spray booth water before or after addition of the melamine polymer and aluminum salt, adding an effective amount of a flocculant to the paint spray booth water, and removing resulting sludge from the paint spray booth water.
Patent CA-2073841-A1 (CA)
Inventor: RIES UWE
IPC: C07D215/233
Filed: 1992-07-14
Abstract: Abstract Phenylalkyl Derivatives The invention relates to phenylalkyl derivatives of formula I                                  (I) (wherein Ra, Rb, Rc, Rd, A, B and n are defined as in the claims hereto) and the isomer mixtures, the tautomers, enantiomers and salts thereof.  The new compounds have valuable pharmacological properties and are, in particular, angiotensin antagonists.
Patent CA-2075099-A1 (CA)
Inventor: WITTRISCH CHRISTIAN
IPC: E21B23/14
Filed: 1992-07-31
Abstract: : - L'invention concerne une méthode et un dispositif pour effectuer des mesures et/ou des interventions dans un puits (1) foré ou en cours de forage par le moyen d'une liaison électrique reliant la surface à un ensemble (3) fixé à l'extrémité d'un train de tiges (2). - L'ensemble (3) comporte des moyens de mesures et/ou d'interventions reliés à un premier connecteur (4) solidaire de l'ensemble (3). - Un tronçon (6) de câble comporte à son extrémité inférieure un second connecteur (5) et à son extrémité supérieure un premier connecteur intermédiaire (8) solidaire d'un support (7). - Un câble (10) relié à la surface comporte à son extrémité inférieure un secondconnecteur intermédiaire (9).
Patent CA-2076190-A1 (CA)
Inventor: JACKSON BILLY R
IPC: B07C3/06
Filed: 1992-08-14
Abstract: A letter sorting apparatus comprising a letter sorting machine, and an automatic storage and retrieval system including a staging rack defining a plurality of staging locations, and a storage and retrieval machine which is positioned to receive letters from the sorting machine and to present letters for input to the sorting machine and which is operable to stage letters in and retrieve letters from the staging locations.
Patent CA-2076209-A1 (CA)
Title: Protective coating for metal parts to be used at high temperatures
Inventor: YAHALOM JOSEPH
IPC: C25D11/18
Filed: 1992-08-14
Abstract: ABSTRACT OF THE DISCLOSURE         A method for producing protecting layers on a metal selected from aluminum, titanium and zirconium, or alloys thereof, involves at least two anodic oxidation steps producing oxide layers and a thermal treatment which is carried out before the last anodic oxidation step.  The treated metal according to the invention is protected even at high temperatures and under condi-tions of thermal cycling.
Patent CA-2080382-A1 (CA)
Title: Pine-apple jam
Inventor: NGUYEN THAN T
IPC: A23L21/12
Filed: 1992-10-22
Abstract: PATENT APPLICATION INVENTOR: THAN THI NGUYEN Date. August 26 th, 1992 Invention Title :             Pine-Apple Jam ABSTRACT           In making pine-apple jam, using a fork or a fork-like tool to tear the pulp of the whole (but peeled) pine-apple, with the result that the jam has a firm texture and is rich inflavour.
Patent CA-2080501-A1 (CA)
Title: Method and apparatus for attaching ceramic to metal parts
Inventor: OSGOOD MELVIN L
IPC: F16B13/08
Filed: 1992-10-14
Abstract: A metal valve stem is attached to a ceramic valve plug. An elongated metal screw member has an expandable section securely wedged into a cavity in the plug as the attached screw/ceramic plug are threadably tightened on the valve stem. A first pre-wedging step presses an expander on the screw to fully bend the expander inside the ceramic cavity. The second wedging step during tightening of the screw/plug on the stem ensures uniform loading of the expander on the ceramic cavity surfaces.
Patent CA-2083701-A1 (CA)
Title: Method and system for concurrent electronic component testing and lead verification
Inventor: BRUNO DAVID A
IPC: G01R31/50
Filed: 1991-04-18
Abstract: A system (100) performs concurrent testing and lead verification of an electronic component (104) having two leads (126 and 128).  The system includes circuitry (114 and 116) for determining a sum of amounts of contact resistances between first (132) and second (134) probes and one of the leads by producing a current (I1) that propagates through the first probe, the lead of the component, and the second probe. The sum of the contact resistances is proportional to the difference in voltage between the leads. If the difference exceeds a limit, then the sum of the amount of contact resistance is excessive. The system also includes circuitry (110) for determining a value of a parameter of the component while the sum of the amounts of contact resistance is being determined.  The circuitry for determining the sum of the contract resistances and the circuitry for determining the value of the parameter are electrically isolated from each other so that they do not influence each other.