baber/WOPTO huggingface dataset:
Patent CA-2021677-A1 (CA)
Inventor: KLEMM ROBERT E
IPC: C21D8/10
Filed: 1990-07-20
Abstract: A multi-walled composite tube member is formed from two superimposed pipes having a gap therebetween.  The inner pipe is forcibly expanded in excess of the gap to deform and expand the outer pipe.  The expander including a mandrel is forced through the aligned pipes while maintaining the longitudinal alignment.  The diameter of the mandrel corresponding to the final desired diameter to finally size the composite pipe section and establish a true round inner passage.  An induction heating coil operating at a low frequency operating in the range of low hundreds hertz in contrast to a conventional high frequency unit operating at thousands of hertz is coupled to and moved relative to the expanded pipe unit, progressively heats small lengths of the expanded pipe unit.  The expanded pipe unit is guenched with a chilled brine solution applied to both surfaces.  The brine solution provides a rapid interchange of heat and hardening of the inner liner, while application to both surfaces improves the hardening of the outer pipe wall.  The composite pipe is formed in a single pass to avoid distortion which may occur on each of a plurality of heating passes, and to improve grain growth, minimize cracking and reduce energy consumption and cost.
Patent CA-2024380-A1 (CA)
Title: Pointing control for antenna system with electronic scanning and digital beam forming
Inventor: CHAMPEAU ANDRE
IPC: H01Q3/26
Filed: 1990-08-31
Abstract: ABSTRACT OF THE DISCLOSURE    This antenna system has a plurality of  elementary antennas configured into an  array, wherein there is  a reception (or  transmission)  channel  associated  with each antenna or sub-array  of antennas, said  reception channel having, in series:     - an active reception module, - delay means capable of selectively introducing a pure delay of  propagation of the  signal picked up  by the elementary antenna so as to produce a gradation  of delays  for   the   different   respective   elementary antennas,  said  gradation   of  delays  enabling   the definition of a  desired pointing in  the direction  of the wave to be received with respect to the orientation proper to the array;     - and  an analog/digital  converter receiving,  at input, the  analog  signal  received,  to  deliver,  at output, a  corresponding  digitized signal  to  a  beam forming computer. The  delay means  are digital  means, positioned  at  output   of  the  analog/digital converter and typically  comprise  a  digitally  programmable   delay generator comprising a programming input that  receives a digital  control  word,  defining  the  delay  to  be produced, from a pointing computer, a triggering  input that receives pulses digitally representing the  signal to be  delayed  and  a  signal  output  delivering  the delayed signal pulses. Figure 2
Patent CA-2024490-A1 (CA)
Title: Transfer of Catalyst
Inventor: HOVIS KEITH W
IPC: B01J38/00
Filed: 1990-08-31
Abstract: An improved system for performing an alkylation process and a method for handling liquid catalyst in an alkylation process.   This improvement involves method and apparatus by which liquid alkylation catalyst contained in the alkylation process equipment can be transferred into a catalyst storage vessel without the need for venting excess pressure from the storage vessel to atmosphere.  Through a combination of the physical arrangement of the process equipment and the storage vessel along with the addition of a pressure equalization line, apparatus is provided whereby certain process steps can be followed which allow the transfer of catalyst from the process equipment to the storage vessel without venting the storage vessel.   The improvement comprises physically locating the catalyst storage vessel at a relative elevation below the alkylation process equipment and providing a line to connect the vapor space of the storage vessel with that of a catalyst settling vessel in the process equipment.
Patent CA-2024845-A1 (CA)
IPC: H04R25/00
Filed: 1990-09-07
Abstract: ABSTRACT           An improved pulsatile system for a cochlear prosthesis is disclosed.  The system employs a multi-spectral peak coding strategy to extract a number, for example five, of spectral peaks from an incoming acou-stic signal received by a microphone.  It encodes this information into sequential pulses that are sent to selected electrodes of a cochlear implant.  The first formant (F1) spectral peak (280-1000 Hz) and the sec-ond formant (F2) spectral peak (800-4000 Hz) are en-coded and presented to apical and basal electrodes, respectively.  F1 and F2 electrode selection follows the tonotopic organization of the cochlea.  High-fre-quency spectral information is sent to more basal electrodes and low-frequency spectral information is sent to more apical electrodes.  Spectral energy in the regions of 2000-2800 Hz, 2800-4000 Hz, and above 4000 Hz is encoded and presented to three fixed elec-trodes.  The fundamental or voicing frequency (F0) determines the pulse rate of the stimulation during voiced periods and a pseudo-random aperiodic rate determines the pulse rate of stimulation during un-voiced periods.  The amplitude of the acoustic signal in the five bands determines the stimulus intensity.
Patent CA-2027414-A1 (CA)
Title: Selectively cooled or heated seat and backrest construction
Inventor: FEHER STEVE
IPC: B60N2/879
Filed: 1990-10-11
Abstract: SELECTIVELY COOLED OR HEATED SEAT     AND BACKREST CONSTRUCTION                 ABSTRACT OF THE DISCLOSURE          A seating construction with joined seat and backrest parts has a plenum into which is received temperature conditioned air.  Coil springs define the plenum and a covering is secured over the springs consisting of, from the inside out, a metal mesh layer, an elastomer sheet with a number of openings, and an air permeable fabric layer.  The elastomer sheet behaves as a viscous liquid when subjected to forces and shocks. An alternative to the elastomer sheet is a baglike layer filled with fluid with a number of openings provided to enable passage of conditioned air through the layer.
Patent CA-2029738-A1 (CA)
Title: Wall panel mounting system
Inventor: MILLER FRANK
IPC: E06B3/54
Filed: 1990-11-13
Abstract: WALL PANEL MOUNTING SYSTEM            Abstract of the Disclosure The present invention relates to a system for mounting a series of interconnected decorative panels onto the outer surface of a building.  The system includes adjacent supporting means attached to the building outer surface.  A first male flange is attached to the first end of the supporting means, while a second female flange is attached to the second end of the supporting means.  An intermediate connector attaches a panel gripping means holding a panel to each flange.  These panels are interconnected in series by coupling the male flange to the female flange.
Patent CA-2030165-A1 (CA)
Title: Cylinder having improved mixture characteristics
Inventor: GITTENS TIMOTHY E
IPC: F17C7/00
Filed: 1990-11-16
Abstract: CYLINDER HAVING IMPROVED MIXTURE CHARACTERISTICS                           ABSTRACT              A cylinder having a defined perforated tube extending from the valve through the majority of the cylinder length, and a charging and a gas delivery method using same, whereby gas mixing is enhanced and operating efficiency is improved.
Patent CA-2031406-A1 (CA)
Title: Graft copolymers of polyolefins and a method of producing same
Inventor: GALLI PAOLO
IPC: C08F220/18
Filed: 1990-12-03
Abstract: Disclosed are graft copolymers of polyolefins and a method of preparing said graft copolymers. The method comprises irradiating a mass of olefin polymer particles and thereafter treating the mass of particles with a vinyl monomer in liquid form. A nonoxidizing environment is maintained throughout the process while free radicals produced in the olefin polymer by the irradiation are present, thereby preventing degradation of the polymer. In a final step, residual free radicals are deactivated, and any unreacted monomer is removed.
Patent CA-2032329-A1 (CA)
Title: Photosensitive resin composition and method of use thereof
Inventor: NISHIKAWA KATSUE
IPC: G03F7/033
Filed: 1990-12-14
Abstract: ABSTRACT             A one-component epoxy containing photosensitive composition and a method of using that composition is disclosed .  The composition is aqueous developable and suitable for use as a solder, etch or plate resist in the manufacture of printed circuit boards.  The composition also shows good storage stability properties and can be processed under standard exposure and development processes.  The photosensitive composition primarily contains (a) at least one compound having one or more carboxyl groups, (b) at least one compound having two or more ethylenically unsaturated functionalities and (c) at least one compound having two or more epoxyl groups.
Patent CA-2032500-A1 (CA)
Title: Key using synthetic resin for grip portion
Inventor: TERADA MASAJI
IPC: E05B19/26
Filed: 1990-05-10
Abstract: ABSTRACT     Disclosed herein is a key using a synthetic resin for a grip portion comprising: a metallic main body of the key which comprises a blade portion to be serrated on both sides thereof when put to use, and a fitting portion formed in one body with the blade portion at a base end of the blade portion; and the synthetic resin-made grip portion surrounding the fitting portion, wherein the thickness of the fitting portion is smaller than the thickness of the blade portion, and the thickness of the synthetic resin-made grip portion is set small in the range from 0.9 to 1.3 times the thickness of the blade portion.
Patent CA-2035047-A1 (CA)
Title: Burner for solid and liquid or gaseous fuel
Inventor: WEXOE MADS
IPC: F23C7/06
Filed: 1991-01-28
Abstract: ABSTRACT   A burner for feeding solid and liquid or gaseous fuel into a burning zone of a kiln, for instance a rotary kiln, and comprising a central duct for liquid or gaseous fuel, a surrounding annular duct for primary air and a further surrounding annular duct for solid fuel is provided with an outer duct system for feeding yet an additional amount of primary air into the burning zone, the duct system being in the form of a heat exchanger for transferring heat from the inner kiln compartment surrounding the burner to the primary air transported in the duct system, to thereby increase the velocity of the air passing through the system without any corresponding increase in fan power or energy consumption of the kiln plant, but with a substantial decrease in the amount of primary air fed to the burning zone.  The duct system is separated from the remaining parts of the burner by an insulating layer.
Patent CA-2035104-A1 (CA)
Title: Robot tool changer and overload device
Inventor: COTSMAN DAVID N
IPC: B25J15/04
Filed: 1991-01-28
Abstract: ROBOT TOOL CHANGER AND OVERLOAD DEVICE ABSTRACT OF THE DISCLOSURE     A robot tool changer and overload device has first and second separable plates adapted to be respectively connected to a robot arm and to an end of arm tooling device (EOAT) for the robot; a magnet is connected to one of the plates and a steel insert is connected to the other of the plates for providing a magnetic attraction therebetween for holding the first and second plates together; a pair of frustoconical bearing surfaces are formed on the first and second plates at an angle and a depth to interconnect the plates during normal operation and operative to produce pivotal release movement between the plates when an overload force is applied thereto; a flange on one of the plates is adapted to be removably received within a tool cage to cooperate with means for applying a pneumatic release force between the first and second plates to allow separation therebetween along a Z axis without imposing an overload force on the robot arm.
Patent CA-2035689-A1 (CA)
Inventor: BAUDIN GILLES
IPC: B05D1/02
Filed: 1991-02-05
Abstract: 16 PROCEDE DE PULVERISATION A L'AIDE D'UN VAPORISATEUR A POMPE MANUELLE ET VAPORISATEUR A POMPE MANUELLE POUR LA MISE EN OEUVRE DU PROCEDE. Procédé de pulvérisation à l'aide d'un vaporisateur à pompe manuelle et vaporisateur à pompe manuelle, dont la tête de distribution comprend un bouton-poussoir (2) pour actionner la pompe et un orifice (7) de pulvérisation ; on communique à l'orifice (7) un mouvement de rotation autour de l'axe de la pompe au cours de chaque translation du boutonpoussoir (2) pour actionner la pompe. Figure à publier : Figure 1
Patent CA-2036002-A1 (CA)
Title: Process for the production of squaric acid
Inventor: SCHOLL THOMAS
IPC: C07C49/707
Filed: 1991-02-08
Abstract: ABSTRACT OF THE DISCLOSURE          A process is disclosed  for the production of squaric acid by halogenation either of pure 3-acetoxy-2-cyclobuten-1-one or of a distillation residue of diketene production containing 3-acetoxy-2-cyclobuten-1-one, whereby to form a cyclobutenone of the formula:                                             (II) wherein each R is identical in meaning and represents a chlorine or bromine atom, followed by hydrolysis of the cyclobutenone II to form squaric acid.   The halogenated cyclobutenones  are  novel  intermediate products  in the process.
Patent CA-2037009-A1 (CA)
Title: 15-dehydroxy-16-oxoprostaglandins
Inventor: UENO RYUJI
IPC: A61P9/08
Filed: 1991-02-25
Abstract: A compound of the formula: <CHEM>  wherein  L and M are hydrogen atom, hydroxy, lower alkyl,  hydroxy(lower)alkyl or oxo, provided that at least one of L and M is not hydrogen atom and that the five-membered ring may have one or two double bonds,  X1 and X2 are hydrogen atom, halogen atom or lower alkyl,  Y is -CH2-CH2-, -CH=CH-, -C=C- or -CO-CH2-,  Z is -CH2-CH2-CH2-, -CH=CH-CH2 or -CH2-CH=CH-,  R is hydrogen atom, lower alkyl, lower cycloalkyl, monocyclic aryl, monocyclic aryl(lower)alkyl or monocyclic aroyl(lower)alkyl,  R2 is single bond or lower alkylene, R3 is lower alkyl which is unsubstituted or substituted with halogen, lower cycloalkyl which is unsubstituted or substituted with lower alkyl, monocyclic aryl which is unsubstituted or substituted with halogen or halo(lower)alkyl, or monocyclic aryloxy which is unsubstituted or substituted with halogen or halo(lower)alkyl, or a pharmaceutically acceptable salt when R1 is hydrogen atom.
Patent CA-2041536-A1 (CA)
Title: Method for treatment and recycling of pulp mill bleach plant effluents
Inventor: MYREEN BERTEL
IPC: D21C11/10
Filed: 1991-04-30
Abstract: Abstract The invention relates to a method for treatment and recycling of pulp mill bleach plant effluents. Chlorine-containing chemicals are separated from the fluid obtained from the first bleach stage (DC) implemented with these chlorine-containing bleach chemicals on pulp (2) that has been washed (W) and partially dewatered (P1) whereby the pulp (3) from the mentioned bleach stage (DC), with chlorine-containing bleach chemicals, is dewatered (P2) up to about the same dryness of at least 25 % and at most 35 % as for the mentioned thereto incoming pulp (2) and whereby the fluid from the second dewatering (P2) is recycled to the bleach stage (DC) and the outcoming fluid (9) from the bleach stage (DC) is evaporated (EV) through indirect heating with condensing vapour obtained through recompression of vapour stripped in the evaporation. The dewatering (P1, P2) is preferably performed by pressing out the liquid from the pulp (2, 3) and the evaporation (EV) in several stages connected in parallel or in series at a temperature below 70°C.
Patent CA-2042668-A1 (CA)
Title: Treatment of amyloidosis associated with alzheimer's disease
Inventor: BUXBAUM JOSEPH D
IPC: A61P25/28
Filed: 1991-05-15
Abstract: A method of regulating protein phosphorylation of proteins found in intracellular neurofibrillary tangles and extracellular amyloid plaques comprising introducing an effective amount of a kinase modulator or phosphatase modulator, the modulator capable of increasing or decreasing the rate of proteolytic processing of the proteins.
Patent CA-2043717-A1 (CA)
Title: Recovery of sodium hydroxide and aluminum hydroxide from etching waste
Inventor: DAVIS THOMAS A
IPC: C01D1/38
Filed: 1991-05-31
Abstract: RECOVERY OF SODIUM HYDROXIDE AND ALUMINUM HYDROXIDE FROM ETCHING WASTE                         ABSTRACT           A method for the recovery and recycling of sodium hydroxide from the waste solution of aluminum etching operations.  The method utilizes a dialysis membrane column or stack to initially remove sodium hydroxide from the waste solution and return it to the etch tank base solution sufficiently concentrated to carry on the basic etching operation.  The method permits the recovery of salable quantities of aluminum hydroxide.
Patent CA-2047020-A1 (CA)
Title: Substrate for superconducting device
Inventor: HARADA KEIZO
IPC: H01L23/532
Filed: 1991-07-15
Abstract: A novel composite comprising a silicon substrate (1) and a plurality of layers of a first oxide superconductor layer (3), a dielectric material layer (4), a second oxide superconductor layer (5), a second dielectric material layer (6) and a third oxide superconductor layer (7) deposited directly or through a buffer layer (2) in this order on the silicon substrate.     The composite is used for fabricating superconducting devices such as Josephson element, SQUID and microwave devices.
Patent CA-2047745-A1 (CA)
Title: Zone-controlled high-temperature electric heater for the implementation of composite materials
Inventor: GUILLEMOT GERARD
IPC: F24H3/04
Filed: 1990-03-19
Abstract: A high-temperature heating system designed to be fixed on a rigid mechanical support (66), in particular, on a press bed, for the manufacture of products made of plastic and composite materials, comprising a heat distribution plate (60) heated according to several zones by a heating submodule (61) consisting of a plurality of unitary, shielded and flat heating elements (62), braced by blocks (63) and distributed into at least three resistors (X1, X2, X3). The heating zones are connected to an independent electrical supply using electronic power supply means by zone according to instructions set by the heating zone in conjunction with temperature sensors.
Patent CA-2049235-A1 (CA)
Inventor: SMITH NEIL E
IPC: E05B19/00
Filed: 1991-08-15
Abstract: A lockable key box having a tubular receiver portion with an integrally formed mounting flange, and a closure plug which is lockably receivable in an open end of the receiver portion.  The closure plug is formed of an inner sleeve which fits within the outer sleeve formed by the receiver, and a master key-operated cylindrical lock mechanism which is retained within the inner sleeve so that a locking plunger extends from the lock mechanism through a transverse bore in the inner sleeve to engage a locking recess in the outer sleeve.  The locking plunger is outwardly-biased and has a bevelled leading face so that the closure plug can be inserted into the receiver portion without using the master key.  The receiver portion has a substantially continuous transverse cross section, so that it can be formed of extruded material, such as high strength extruded aluminum alloy.  The mounting flange can be attached directly to the exterior of a structure, or to a bracket which is configured for temporarily mounting the key box to a particular type of structure.
Patent CA-2051939-A1 (CA)
Title: Digital data registration and differencing compression system
Inventor: RANSFORD GARY A
IPC: G16H30/20
Filed: 1991-09-20
Abstract: ABSTRACT OF THE DISCLOSURE A process for X-ray registration and differencing results in more efficient compression. Differencing of registered modeled subject image with a modeled reference image forms a differenced image for compression with conven-tional compression algorithms. Obtention of a modeled reference image includes modeling a relatively unrelated standard reference image upon a three-dimensional model, which three-dimensional model is also used to model the subject image for obtaining the modeled subject image. The registration process of the modeled subject image and modeled reference image translationally correlates such modeled images for resulting correlation thereof in spatial and spectral dimensions. Prior to compression, a portion of the image falling outside a designated area of interest may be eliminated, for subsequent replenishment with a standard reference image. The compressed differenced image may be subsequently transmitted and/or stored, for subsequent decompression and addition to a standard reference image so as to form a reconstituted or approximated subject image at either a remote location and/or at a later moment in time. Overall effective compression ratios of 100:1 are possible for thoracic X-ray digital images.
Patent CA-2052049-A1 (CA)
Title: Reusable and microwavable hot or cold therapy mitt and method of manufacture
Inventor: WALASEK STEVEN P
IPC: F25D3/08
Filed: 1991-09-23
Abstract: A reusable and microwavable hot or cold therapy mitt for a user's hand has a bottom laminate, a first pocket containing a gel, a middle laminate being positioned above the first pocket, a second pocket being provided with an open air space for receiving the user's hand above the middle laminate, a layer of open-celled material being positioned above the second pocket, a layer of insulative wadding being placed above the layer of open-celled material, a third pocket being provided with dead air space for additional insulating above the layer of insulative wadding, and a top laminate being positioned above the third pocket. A strap fastens the therapy mitt securely on the user's hand. A method is also disclosed for manufacturing the therapy mitt. The bottom, middle and top laminates each have outer peripheral edges that are bonded together by a radio frequency (RF) heat-sealing step with outer peripheral edges of the layer of open-celled material and of the layer of insulative wadding.
Patent CA-2053178-A1 (CA)
Inventor: DIEUX DANIEL
IPC: C12C7/16
Filed: 1991-10-10
Abstract: Le filtre est constitué d'un empilage de plateaux 2 chambrés des deux côtés et portant une paroi filtrante 5, 6, 7. Deux plateaux accolés ainsi par leurs plans de joint 3 forment entre eux un espace commun pour le réception des maisches. Les fonds des plateaux sont inclinés pour faciliter l'évacuation des drêches. Les conduites d'évacuation 16 du moût sont situées à la partie inférieure des plateaux. Elles recueillent le moût s'écoulant de part et d'autre d'une tôle séparatrice 5, après avoir traversé les parois filtrantes 6.
Patent CA-2060039-A1 (CA)
Title: Line draw pre-clipping method
Inventor: HARTOG ADRIAN H
IPC: G06T15/30
Filed: 1992-01-24
Abstract: A method for drawing lines on a graphics device in such manner in that only those points lying inside a specified rectangular area of the device are drawn. Predetermined digital outcodes are generated for defining the endpoints of the lines and a decision is made whether to draw or not draw the lines based on the relationship of the endpoints with respect to both the specified rectangular area of the device, and a second larger rectangular area of the device.
Patent CA-2061142-A1 (CA)
Title: Mosfet switch matrix
Inventor: NINNIS THOMAS J
IPC: H03K17/12
Filed: 1992-02-13
Abstract: A solid state switch matrix for developing a high current, high voltage output power pulse in response to a small signal input pulse includes a plurality of solid state switch modules and a controller. Each of the modules has a small signal input, a large signal input and an output. The modules are arranged in rows and in columns such that modules in each of the rows are connected in parallel and modules in each of the columns are connected in series. The controller has an input to which the input pulse is applied and develops a switching pulse for application to the small signal input of each of the modules in response to the input pulse. Each of the modules becomes conductive between its large signal input and its output in response to said switching pulse. When each module is conductive, the matrix is conducive between the large signal input of each of the modules connected in parallel in a first row and the output of each of the modules connected in parallel in a last row to develop the output power pulse.