baber/WOPTO huggingface dataset:
Patent CA-2006673-A1 (CA)
Title: Pants-like garment incorporating a stretchable construction
Inventor: GREENBERG BERT
IPC: A41D1/06
Filed: 1989-12-27
Abstract: Abstract of the Disclosure The present invention provides a pants-like garment having  a stretchable construction.   The garment includes a waistband configured to encircle the  waist  of  a  wearer  and  a  covering  portion configured to encircle the trunk of the wearer.  The covering portion has  a front section connected, adjacent its top edge, to the waistband and a rear section connected to the front section.  A strip of two-way stretchable material having an elasticity-in a pair of directions, perpendicular to the waistband and parallel to the waistband, connects the top edge of the rear section of the garment covering portion to the waistband.   When the wearer bends over or twists his  or her  trunk,  the  strip of  elastic material stretches to prevent deformation of  the waistband and prevent exposure of the buttocks of the wearer.
Patent CA-2009586-A1 (CA)
Inventor: GERBER MILTON
IPC: D21B1/06
Filed: 1990-02-08
Abstract: A method and apparatus for fiberizing feed stock in the form of shreds or the like to form a low density cellulosic product.   The shredded feed stock is fed to a material  handling  rotor  that functions as a  centrifugal blower.   The apparatus includes a housing that defines a cylindrical rotor chamber formed about a horizontal axis and a volute-shaped internal passage having at least one convolution formed around the rotor chamber.   Located within the housing is a cylindrical screen with perforations that open into the rotor chamber.   The centrifugal blower rotor is mounted in the rotor chamber and has a plurality of radial vanes with rakers attached to the outer ends closely spaced from the inner surface of the screen so that they continuously wipe pass the perforations to prevent clogging or blinding.
Patent CA-2010841-A1 (CA)
Title: Small-particle semiconductors in rigid matrices
Inventor: HERRON NORMAN
IPC: C03C14/00
Filed: 1990-02-23
Abstract: SMALL-PARTICLE SEMICONDUCTORS IN RIGID MATRICES     Abstract of the Disclosure Nonlinear optical materials comprising porous glass, the pores of which contain a semiconductor material and a polymer.
Patent CA-2012435-A1 (CA)
Title: Halogen generation
Inventor: SPOTNITZ ROBERT M
IPC: C01B7/04
Filed: 1990-03-16
Abstract: ABSTRACT      A process for forming halogen of chlorine and/or bromine by subjecting aqueous hydrohalic acid electrolyte solution to an electrical current while providing a continuous flow of inert gas through the solution and maintaining the solution at a substantially invariant level and composition.
Patent CA-2016704-A1 (CA)
Inventor: RACHEL JANE M
IPC: C12Q1/52
Filed: 1990-05-16
Abstract: A method of gamma glutamyltransferase (GGT) analysis is suitable for use with hemolyzed fluid or dried whole blood samples which avoids the need for protein precipitation or centrifugation of the sample.  Analysis is by first mixing a fluid or dried whole blood sample with a phosphate buffered saline solution containing a non-ionic biological detergent.          The mixture is then vigorously agitated for one hour at room temperature.  The activity of the GGT is then determined by reacting the mixture with a GGT substrate.  Color is developed by a diazo coupling reaction with the enzyme reaction product. The intensity of the color is then measured.
Patent CA-2017845-A1 (CA)
Title: Composite metal plated article excellent in mold-releasability
Inventor: OKADO AKIYOSHI
IPC: C25D15/02
Filed: 1990-05-30
Abstract: COMPOSITE METAL PLATED ARTICLE            EXCELLENT IN MOLD-RELEASABILITY     ABSTRACT OF THE DISCLOSURE     A composite metal plated article excellent in mold-releasability, which comprises an article to be plated and a composite metal plating layer, formed on at least one surface of the article to be plated, in which particles of a synthetic resin as a mold-releasing agent are uniformly dispersed.  The above-mentioned synthetic resin comprises a modified silicone oil having a structure in which a plurality of repeated units of a fluorine atoms substituted olefin are combined with silicone oil.
Patent CA-2024743-A1 (CA)
Title: Alternating cathode florescent lamp dimmer
Inventor: RUBY JOSEPH H
IPC: H05B41/392
Filed: 1990-09-06
Abstract: ALTERNATING CATHODE FLORESCENT LAMP DIMMER                     ABSTRACT OF THE DISCLOSURE    An  apparatus  for  use  in  dimming  florescent  lamps  by alternating cathodes operated with pulsating unidirectional arc currents for a duration that is long relative to the filament thermal  time constant, but short  in relation to the mercury migration time constant of the florescent lamp.   The invention provides apparatus using full bridge switching and full bridge clamping topology in a trigger driver as well as a power driver to prevent low voltage power supply "ride up".  The invention further provides means for sensing cathode heater current to detect a failed cathode and to control the phase switching to a good cathode if a cathode failure occurs.   The invention further provides apparatus for a balanced-to-group ground lamp drive voltage for improved ignition of the lamp plasma and better lamp luminance uniformity when the  lamp  is  operated  dimly.    A  logarithmic amplifier is provided  in a closed loop operation  for analog compression and also to provide a logarithmic dimming response.          Flash  protection  is  provided  in  order  to  eliminate  pilot distractions.
Patent CA-2024994-A1 (CA)
Title: Method for removal of dioxin generated in waste combustion
Inventor: MACHI SUEO
IPC: C02F11/00
Filed: 1990-09-10
Abstract: METHOD FOR REMOVAL OF DIOXIN GENERATED IN               WASTE COMBUSTION          ABSTRACT OF THE DISCLOSURE:      Dioxin generated during the combustion of waste material can be satisfactorily removed efficiently and economically by irradiating waste incineration ash contain-ing ca. 10 - 90% by weight of water in a temperature range from ambient temperature to ca. 80°C with ionizing radiation for a total dose of ca. 10 - 2,000 kGy.  The ash or sludge after the irradiation treatment can be very conveniently disposed of by burial, etc.
Patent CA-2026218-A1 (CA)
Inventor: SHORT EDWARD H III
IPC: B65D90/36
Filed: 1990-10-03
Abstract: Abstract of the Disclosure A pressure relief panel assembly including a single rup-ture panel is provided.  The rupture panel includes a domed portion connected to a peripheral flat flange portion and has at least one slit formed therein defining a hinged blow-out part,   The hinged blow-out part  is connected to the remaining part of the rupture panel by an unslit hinge area and a plurality of rupture tabs.
Patent CA-2026975-A1 (CA)
Title: Method of pre-shaping and vacuum molding a thermoplastic sheet
Inventor: MACLACHLAN OSCAR
IPC: B29C51/10
Filed: 1990-10-10
Abstract: Abstract of the Disclosure A method of shaping a thermoplastic sheet.  The sheet is mounted on an articulated frame and pre-shaped by swinging hinged sections of the frame toward each other.  A vacuum mold is then placed with its molded surfaces adjacent the pre-shaped sheet.  Vacuum applied to the mold finally shapes the sheet.
Patent CA-2027456-A1 (CA)
Inventor: MURPHY TIMOTHY A
IPC: H01Q3/40
Filed: 1990-10-12
Abstract: A  steerable beam antenna  system  (24)  for use  in satellite communication systems and including a main reflector (32) and an antenna array having a plurality of feed elements (50)  is  disclosed.   Additional  feed elements  (314,  316)  are positioned along with the array (116-119) and are used to cancel undesirable  side  lobes  which appear  as  the  beam  is  steered towards  the  end  portions  of  a  target  area  (324,  330).   The antenna array is positionable at or near at  least one focal point of  the main reflector  (48),  and its  feed elements  can receive microwaves from or transmit microwaves toward the main reflector.  A Butler matrix (110) having multiple input ports (310) and multiple outputs (312) is connected to the array of feed  elements  and  substantially  performs  a  spatial  discrete Fourier  transformation  on  a generated  set  of  signals  to be transmitted  which  have  a  predetermined  phase  relationship between the signals, which is necessary to create the steerable beam.   The Butler matrix also can perform an inverse spatial transformation on a set of incoming signals focused on the array by the reflector and received by the feed elements.
Patent CA-2027644-A1 (CA)
Title: Softening compositions and methods for making and using same
Inventor: CONTOR LAURA
IPC: D06M101/16
Filed: 1990-10-15
Abstract: Environmentally safe, stable, pourable aqueous fabric softening compositions based on the combination of a quaternary ammonium compound and an amido amine. The softener combination comprises from as little as 1% and up to 60% and preferably 2 to 20% by weight of the composition. Methods for making the composition are also described. Softening performance is outstanding and the compositions are simple to prepare, even the more highly concentrated forms. The softener compositions are primarily intended for use in the rinse cycle of an automatic washing machine.
Patent CA-2028932-A1 (CA)
Title: Self contained powder-metal relief valve
Inventor: COZENS ERIC
IPC: F16K17/04
Filed: 1990-10-30
Abstract: ABSTRACT OF THE INVENTION   In a relief valve adapted to be received in a bore communicating with a pressure port and a suction port comprising: a cartridge adapted to be press-fitted into said bore, said cartridge having one end presenting a bearing surface and another end having an opening; a plunger disposed adjacent said opening for closing said opening in a first position and permitting access to said opening in a second position; a spring disposed between said bearing surface and said plunger for urging said plunger to close said opening in a first position and for permitting access to said opening in a second position; said plunger including bi-pass holes communicating with said ports and said opening when the plunger is in the second position.
Patent CA-2029075-A1 (CA)
Inventor: OHTONEN AIMO
IPC: B65B25/14
Filed: 1990-10-31
Abstract: The present invention concerns a method and assembly for the capture of an outer end head (4) onto a press platen (1) in roll wrapping unit. According to the method, the outer end head (4) is taken with the help of a clamp (2) close to the press platen (1) and a rapid air flow is injected into the gap between the platen (1) and the end head (4). This air flow effects an underpressure into the gap between the end head (4) and the press platen (1), whereby the end head (4) is forced by the effect of the ambient pressure close to the press platen (1). As soon as the end head (4) is close to the platen (1), a vacuum applied via suction holes (25) in the platen (1) sucks the end head (4) against the platen (1). The assembly in accordance with the invention applies the air flow via a channel (18, 23, 24) arranged to pass through the press platen (1) into the gap between the press platen (1) and the end head (4).
Patent CA-2033829-A1 (CA)
Title: Fuel for internal combustion engines
Inventor: OPPENLAENDER KNUT
IPC: C10L1/22
Filed: 1991-01-09
Abstract: BASF Aktiengesellschaft                                   O.Z. 0050/41339 Fuel for internal combustion engines Abstract of the disclosure:            An  otto-cycle       engine fuel containing a small amount of an amide,amide/ammonium   salt   and/or   ammonium   salt   of   an   aminoalkylene polycarboxylic acid and a long-chain secondary amine as additive for cleaning the carburetor and valves.
Patent CA-2035421-A1 (CA)
Title: Method and apparatus for removing foreign matter from heat exchanger tubesheets
Inventor: WEEMS STERLING J
IPC: F28G9/00
Filed: 1991-01-31
Abstract: ABSTRACT    Built-up deposits on the top surface of a tubesheet and on adjacent tube sections in a tube bundle heat exchanger are removed  by  inducing  vigorous  turbulent  flow  of  cleaning liquid  radially  along  the  surface  of  the  tubesheet  by repetitively and periodically injecting gas pulses into the liquid  to  form  an  expanding  and  retracting  gas bubble proximate the plate center.   The gas pulse rise time is smoothed by controlling the actuation time of a discharge valve  and by  a  surge volume downstream of the valve to thereby  avoid  harmful  pressure  shock  waves  in  the  heat exchanger.   The cleaning liquid is recirculated through an external  filter loop to remove suspended foreign materials dislodged by the turbulent flow.
Patent CA-2037578-A1 (CA)
Inventor: MORIDAIRA HIDEO
IPC: G06F13/00
Filed: 1991-03-05
Abstract: Copying method of system data at the time of updating of a main control apparatus in a system using a computer, and copying adaptor used for this method.  The method comprises replacing the control program memory of a main control apparatus, when it is updated, by an adaptor having the function of transferring and retaining system data, transferring and storing the system data stored in the system data memory of the main control apparatus to and in the adaptor, and connecting the adaptor to a new main control apparatus to transfer the system data so as to store the system data in the system data memory of the new main control apparatus.
Patent CA-2041614-A1 (CA)
Inventor: ARII KAZUYOSHI
IPC: E02F9/20
Filed: 1991-05-01
Abstract: A control change system for a hydraulic working vehicle having a plurality of hydraulic actuators operable by control levers each shiftable to a plurality of control positions. This system includes a plurality of pilot-operated control valves for controlling pressure oil supply to the hydraulic actuators, respectively, pilot pressure generating valves for generating a pilot pressure in accordance with the control positions of the control levers, and a pilot pressure switching unit for receiving the pilot pressure from the pilot pressure generating valves and outputting the pilot pressure selectively to the control valves. The pilot pressure switching unit includes a plurality of spools slidable to change communicating passages between a pilot pressure input section and a pilot pressure output section of the switching unit.
Patent CA-2043264-A1 (CA)
Title: Self threading fasteners
Inventor: EAGLES DENIS
IPC: F16B35/00
Filed: 1991-05-24
Abstract: ABSTRACT               "Self threading fasteners"         A plastic nut 1 has a bore 5 with a cylindrical sidewall 6. A number of spaced-apart axially extending ribs 7 project radially inwardly of the sidewall 6.  The nut can be screwed onto a threaded bolt which forms corresponding threads in the ribs 7.  Each nut 1 this can be used on one of a range of bolts having different thread types.
Patent CA-2044117-A1 (CA)
Title: Method of manufacturing thermoplastic sheet of film
Inventor: GROSS HEINZ
IPC: B29C48/305
Filed: 1991-06-07
Abstract: An extruded, smooth finished solid sheet or film of thickness < 1 mm is prepared from a thermoplastic plastic having a glass transition temperature > 50°C, by extruding the plastic in the thermoplastic state through a slot nozzle to form a flat extruded strip, which is introduced into the roll gap of a roll stack having a smoothed upper roll and a lower roll, with the upper roll being maintained at a temperature below the glass transition temperature of the thermoplastic plastic and with the lower roll being maintained at a temperature in the plastic state domain of the thermoplastic plastic, and, after exiting the roll gap, the extruded strip is moved resting on a smooth-finished endless belt which passes around the lower roll, thereby smoothing the surfaces of the strip; and cooling said extruded strip below the glass transition temperature.
Patent CA-2045997-A1 (CA)
Title: Counter-current flow membrane module for liquid separations
Inventor: BITTER JOHAN G A
IPC: B01D63/04
Filed: 1991-06-28
Abstract: A B S T R A C T     COUNTER-CURRENT FlOW MEMBRANE MODULE FOR LIQUID SEPARATIONS      A counter-current flow membrane module for liquid separations consisting of a body comprising hollow fibre membranes wherein the hollow fibre membranes are arranged perpendicular to the longitudinal axis of the module and the channels in the hollow fibres are connected to a space present around the body which is furthermore surrounded by a shell. The module comprises two or more transverse current flow (cross-flow) segments formed by seals between the body and the shell, wherein at least one fibre layer or fibre fabric is applied per segment.
Patent CA-2046649-A1 (CA)
Title: Matrix metalloproteinase inhibitor peptides
Inventor: STETLER-STEVENSON WILLIAM G
IPC: C12Q1/68
Filed: 1990-03-21
Abstract: The present invention is an isolated protein of 21,600 daltons which binds to both latent and activated type IV collagenase with high affinity at 1:1 molar stoichiometry, thereby abolishing enzyme activity. The protein is purified by affinity chromatography on solid phase metalloproteinase, or solid phase metalloproteinase substrates which bind the enzyme-inhibitor complex. The complete primary structure of this protein (initially called CSC-21K), as determined by sequencing overlapping peptides spanning the entire protein, reveals homology with a protein called TIMP, Tissue Inhibitor of Metalloproteinases. In addition, a cDNA for this novel inhibitor, now designated TIMP-2, was cloned from a melanoma cell and its sequence was compared with that of human TIMP-1. Northern blots of melanoma cell mRNA showed two distinct transcripts of 0.9 kb and 3.5 kb which are down-regulated by transforming growth factor-beta, and are unchanged by phorbol ester treatment. The figure 7 shows the cDNA  and corresponding protein sequence of TIMP-2.
Patent CA-2048019-A1 (CA)
Inventor: RUTT BRIAN
IPC: A61B5/055
Filed: 1991-07-26
Abstract: A receive loop for use in magnetic resonance imaging, comprising: a collapsible imaging coil adapted to be inserted into a patient's body and expanded therein for receiving radio frequency signals emitted by the body, the coil being characterized by an inductive impedance; a quarter-wavelength transmission line connected to the coil, the imaging coil and transmission line in combination being characterized by a capacitive impedance; and apparatus connected to the transmission line remote from the imaging coil for tuning the combination coil and transmission line to resonate in response to the body emitting the radio frequency signals, whereby the radio frequency signals are received.
Patent CA-2049098-A1 (CA)
Title: Urine testing apparatus with urinary sediment and device
Inventor: GUIRGUIS RAOUF A
IPC: B01L3/00
Filed: 1991-08-13
Abstract: ABSTRACT OF THE DISCLOSURE         An  apparatus  and  method  for  testing  molecular specimens  in  a  biological  fluid  and  collecting  cellular components  from  the  fluid  comprising  a  container  housing defining a chamber with a fluid inlet and outlet.   A filter membrane  is  mounted  in  the  housing  chamber  dividing  the chamber  into  two  compartments  with the  filter  membrane allowing a biological fluid flow and antigens carried therein to flow therethrough into one compartment while concentrating the cellular components in another compartment by preventing the flow therethrough.  Chromatography beads are contained in a compartment opposing the cellular component compartment and a cellular component collection cup with an inlet and outlet is  removably  mounted  to  the  container  housing  in  fluid communication    with the    compartment    opposite    the chromatography  bead  compartment.    A cytology  membrane  is mounted in the collection cup to prevent passage of cellular components when biological fluid is being discharged from the collection cup.
Patent CA-2049150-A1 (CA)
Title: Flat piezoelectric keyboard
Inventor: ITEN THOMAS
IPC: G06F3/023
Filed: 1991-08-15
Abstract: ABSTRACT OF THE DISCLOSURE             The flat keyboard is provided with a base laminate and with a cover laminate which are connected to each other. At the key locations, blister-like chambers are provided between the laminates. Each chamber contains a piezoelectric element.          Upon mechanical stress, but almost without travel, the element generates an electric signal. The flat keyboard can be manu-factured economically and has a reduced thickness. The keyboard is immune to humidity and mechanical fatigue.
Patent CA-2049498-A1 (CA)
Title: Particle analyzer and flow cell therefor
Inventor: FUKUDA MASAKAZU
IPC: G01N33/49
Filed: 1991-08-19
Abstract: ABSTRACT OF THE DISCLOSURE   A flow cell 10 comprises a narrow measuring liquid path 12, liquid introducing paths 14, 16 continuous to this measuring liquid path 12, liquid specimen nozzles 18, 20 disposed so that the front ends may be opposite to each other across the measuring liquid path 12, and sheath liquid inlets 22, 26 and waste liquid outlets 24, 28 disposed in the liquid introducing paths 14, 16, respectively.   The particle analyzer is designed to emit light to the liquid specimen flowing as a sheath flow in the measuring liquid path 12 in the flow cell 10 and detect the light from particles individually.   Since two liquid specimen nozzles 18, 20 are opposite to each other, while measuring by discharging liquid specimen from one liquid speciman nozzle, the other liquid specimen may be prepared in the other liquid specimen nozzle, so that the analysis processing time may be shortened notably.
Patent CA-2049951-A1 (CA)
Title: Process for treating a fiber pulp with a chemical solution
Inventor: OSTMAN HAKAN
IPC: D21C9/10
Filed: 1990-04-06
Abstract: Abstract The process relates to continuous treatment of a fiber pulp with a chemical solution by forming on a filter surface a bed of a fiber material suspension and by feeding it through one or several chemical treatment steps in which the chemical solution is displaced through the bed. According to the method, there are used in each treatment step two different treatment liquids which are successively displaced through the bed. The first treatment solution is a chemical solution which contains a greater amount of active chemicals than is consumed in the reactions occurring in the pulp bed, preferably approx. twice the amount. The second treatment liquid is a solution which does not contain active chemicals in an amount significant in terms of the reaction. Its purpose is not only to displace that portion of the first treatment liquid from which the active chemicals have been spent but also that portion which still contains active chemicals upon leaving as a filtrate. Of the filtrate of the treatment step, that fraction is recovered which has the highest concentration of active chemicals and contains most of the active chemicals leaving the bed and is in its amount only so large that, when reinforced with a fresh chemical solution, it can be used in its entirety as the first treatment solution. The total liquid volume of the treatment liquids is substantially greater than the liquid volume present in the bed upon its leaving the treatment step - preferably 2-to 3-fold.
Patent CA-2050316-A1 (CA)
Title: Process and device for the contactless testing of areal and spatial test pieces
Inventor: SCHOEPS WILFRIED
IPC: G01N21/89
Filed: 1991-01-07
Abstract: ABSTRACT OF THE DISCLOSURE          In the process of the invention for the contactless testing of the surface or inner structure of various test pieces, the test piece (1) is illuminated and crossed by a light beam (3).  The light from the beam (3) which is reflected or scattered from or allowed through by the test piece (1) is detected and compared with predetermined values.  The device for implementing the process has a linear light source (2) to generate a continuous light beam (3) and at least one linear opto-electronic converter arrangement (4,6) to detect reflected, scattered or through-going light.