baber/WOPTO huggingface dataset:
Patent CA-2053954-C (CA)
Title: Process for the preparation of nitroguanidine derivatives
Inventor: MAIENFISCH PETER
IPC: C07D333/20
Filed: 1991-10-22
Granted: 2003-06-03
Abstract: A novel process is proposed for the preparation of 1,3-disubstituted 2-nitroguanidines of the formula I (See Formula I) in which R1 is hydrogen or C1-C4alkyl, R2 is hydrogen, C1-C6alkyl; C3-C6cycloalkyl or a radical -CH2B; A is an unsubstituted or mono- to tetrasubstituted aromatic or non-aromatic, monocyclic or bicyclic heterocyclic radical, which may contain one or two substituents from the group comprising C1-C3haloalkyl having 1 to 7 halogen atoms, cyclopropyl, halocyclopropyl having 1 to 3 halogen atoms, C2-C3alkenyl, C2-C3alkynyl, C2-C3haloalkenyl and C2-C3haloalkynyl having 1 to 4 halogen atoms, C1-C3haloalkoxy having 1 to 7 halogen atoms C1-C3alkylthio, C1-C3haloalkylthio having 1 to 7 halogen atoms; allyloxy, propargyloxy, allylthio, propargylthio, haloallyloxy;  haloallylthio, cyano and nitro and one to four substituents from the group comprising C1-C3alkyl, C1-C3alkoxy and halogen; and B is phenyl, cyanophenyl, nitrophenyl, halophenyl having 1 to 3 halogen atoms, phenyl substituted by C1-C3alkyl, C1-C3haloalkyl having 1 to 7 halogen atoms, C1-C3alkoxy or C1-C3haloalkoxy having 1 to 7 halogen atoms, 3-pyridyl, 5-thiazolyl, 5-thiazolyl substituted by one or two substituents from the group comprising C1-C3alkyl, C1-C3haloalkyl having 1 to 7 halogen atoms, cyclopropyl, halocyclopropyl, C2-C3alkenyl, C2-C3alkynyl, C1-C3alkoxy, C2-C3haloalkenyl and C2-C3haloalkynyl having 1 to 4 halogen atoms, C1-C3haloalkoxy having 1 to 7 halogen atoms, C1-C3alkylthio, C1-C3haloalkylthio having 1 to 7 halogen atoms, allyloxy, propargyloxy, allylthio, propargylthio, haloallyloxy, haloallylthio, halogen, cyano and nitro, or 3-pyridyl substituted by one or two radicals from the group comprising C1-C3haloalkyl having 1 to 7 halogen atoms, cyclopropyl, halocyclopropyl, C2-C3alkenyl, C2-C3alkynyl, C2-C3haloalkenyl and C2-C3haloalkynyl having 1 to 4 halogen atoms, C1-C3haloalkoxy having 1 to 7 halogen atoms, C1-C3alkylthio, C1-C3haloalkylthio having 1 to 7 halogen atoms, allyloxy, propargyloxy, allylthio, propargylthio, haloallyloxy, haloallylthio, cyano and nitro or by one to four radicals from the group comprising C1-C3alkyl, C1-C3alkoxy and halogen, which comprises hydrolysing a compound of the formula II (See Formula II) in which R3 is unsubstituted or substituted C1-C10alkyl, C3-C6cycloalkyl, phenyl or benzyl.   The compounds of the formula I are suitable as intermediates for the preparation of pesticides.
Patent CA-2054784-C (CA)
Title: Ternary active brazing based on a zirconium-nickel alloy
Inventor: HEGNER FRANK
IPC: C22C16/00
Filed: 1991-11-01
Granted: 1997-04-01
Abstract: This active brazing  preferably serves to braze   (join) ((aluminum-)oxide-)ceramic parts or single cry-stals or metal parts or to braze  (join) ((aluminum-) oxide-)ceramic parts to single crystals or ((aluminum-) oxide-)ceramic parts or single crystals to metal parts. In addition to the zirconium-nickel alloy,  which is com-posed of 70 atom% to 85 atom% zirconium and 15 atom% to 30 atom% nickel, it contains titanium. In an apparatus for fabricating a  foil  (6) from this ternary active-brazing alloy by melt spinning which has a uniform thickness and two surfaces that are as smooth as possible, the alloy, after being melted by high-frequency heating in a cylindrical crucible (1) made completely of a high-temperature-resistant and highly thermally conductive nonmetallic material, particularly of high-density graphite or of boron nitride, is forced through an open-ing (3) in the bottom of the crucible onto a metal drum (5) of high thermal conductivity rotating at a high cir-cumferential speed, on which the liquid alloy solidifies at a cooling rate on the order of 103 to 106 °C/s. A product made using this ternary active brazing is a pressure sensor (10) having a substrate (12) and a dia-phragm (11) of ceramic, particularly alumina ceramic, preferably with a purity of 96 wt.%, which are ther-mally joined          around the periphery in a defined spaced relationship (d) and parallel to each other by means of the active brazing, e.g., by means of a preform (20)  made  therefrom, thus forming a chamber (13).
Patent CA-2059340-C (CA)
Title: Concrete form support assembly
Inventor: TJELLE LEO
IPC: E04G17/18
Filed: 1992-01-14
Granted: 1997-03-18
Abstract: An improved concrete form support assembly for the form structure  needed to pour concrete for bridge floors and the like.  Such  form  structures  include  a  plywood  flooring supported  at  a desired uniform depth relative to the plane of  the  upper surface of the bridge beams, depending on the thickness  of the concrete called for by the specifications.          The  plywood  flooring  is supported by ledgers which extend laterally  between the bridge beams and stringers on the top thereof  which  extend  longitudinally and parallel with the bridge  beams.  The  ledgers are supported by vertical bolts hanging  from  hanger bars on each side of each bridge beam, with  support  plates at the lower end of the vertical bolts to  support  opposite ends of the ledgers, and threaded nuts below  the  support  plates to adjust the plates and ledgers thereon up and down. After the plywood flooring has been put in place, workmen cannot thereafter reach the adjusting nuts from  above to make final depth adjustments of the flooring.          The   support   assembly  in  accordance  with  the  present invention  provides depth adjustable hanger bolts adjustable from  above  the  plywood  flooring after it has been put in place.
Patent CA-2060241-C (CA)
Title: Silicon nitride sintered body and process for producing the same
Inventor: YAMAMOTO TAKEHISA
IPC: C04B35/593
Filed: 1992-01-29
Granted: 1996-08-20
Abstract: The present invention relates to a silicon nitride sintered body [wherein the composition of Si3N4-first aid (Y2O3 + MgO)-second aid (at least one of Al2O3 and AlN)] falls within a range defined by lines joining points A, B, C and D in FIG. 1, the crystal phase of the sintered body contains both  .alpha.-Si3N4 and B'-sialon, and the relative density is 98% or more.  This sintered body is produced by subjecting a green compact of the above-described source to primary sintering in a nitrogen gas atmosphere at 1300 to 1700°C so that the relative density reaches 96% or more, and the precipitation ratio of the a-Si3N4 crystal phases to the B'-sialon crystal phase in the sintered body is in the range of from 40 : 60 to 80 : 20; and then subjecting the primary sintered body to secondary sintering in a nitrogen gas atmosphere at 1300 to 1700°C so that the relative density reaches 98% or more.  The sintered body has superior strength properties, especially at ordinary temperatures, and can be produced with a high productivity in a high yield at a low cost.
Patent CA-2061467-C (CA)
Title: Crown moulding
Inventor: CROSSLEY BRAD
IPC: E04F19/04
Filed: 1992-02-19
Granted: 1994-09-20
Abstract: ABSTRACT OF THE INVENTION   This invention relates to crown moulding connecting blocks adapted to extend between a ceiling and wall, comprising a rear surface, an upper surface disposed at an angle to the rear surface for contacting the ceiling, a lower surface disposed at an angle to the rear surface for contacting the wall, a face spaced from the rear surface and having a desired profile extending between the upper and lower surface, an abutment disposed at opposite sides of the face, and locating surface projecting exteriorly outwardly from the abutment, and a recess disposed adjacent the abutment and the locating guide; and includes a crown moulding assembly.
Patent CA-2063440-C (CA)
Title: Backrest
Inventor: BRUENIG MATTHIAS
IPC: A47C7/40
Filed: 1991-05-31
Granted: 1998-05-19
Abstract: The invention relates to a backrest for a chair, armchair, seat or the like with two laterally disposed shell-shaped back elements which are shaped like the support surfaces of horse saddles and are concavely shaped in respect of an axis extending substantially perpendicular to the seat surface and convexly shaped in respect of a horizontal transverse axis above the seat surface, the shell-shaped back elements (1) being attached substantially in the central portion thereof to a crossrail (20) disposed therebehind by means of one or more rubber elements (32) such that the connecting surfaces between the rubber elements (32) and force-transmitting angled metal members (30, 31, 33) or U-shaped metal elements lie in a horizontal or predominantly horizontal plane.
Patent CA-2064031-C (CA)
Title: Method and apparatus for monitoring fuel cell performance
Inventor: BLAIR JAMES D
IPC: H01M8/249
Filed: 1991-06-07
Granted: 1996-03-19
Abstract: A method and apparatus are provided for monitoring the performance of fuel cells arranged in series. More particularly, the method and apparatus involve the measurement and comparison of fuel cell performance indicators, such as voltage, in groups of cells connected in series. In a first embodiment, the voltage across each fuel cell group is compared to a reference vol-tage equal to a predetermined minimum voltage. In a second embodiment, the voltage across each group is compared to a refer-ence voltage equal to the average across all fuel cell groups. In a third embodiment, a reference voltage equal to the voltage across one group is compared to the voltage across each of the other fuel cell groups. In a fourth embodiment, the voltage across each group is compared as a reference voltage to the voltage across an adjacent fuel cell group. Other embodiments comprising various combinations of the first, second, third and fourth embodiments are also provided. An alarm is activated, and supply of fuel to the cells discontinued, when the measured voltage for a fuel cell group varies from the reference voltage by more than a predeter-mined voltage differential.
Patent CA-2065271-C (CA)
Title: New bis-platinum complexes as chemotherapeutic agents
Inventor: FARRELL NICHOLAS
IPC: C07D213/00
Filed: 1990-09-04
Granted: 1996-02-20
Abstract: A bis(platinum) complex having structure (I), wherein X, Y, Z, X', Y', and Z' are the same or different ligands and are ha-lide, sulphate, phoshate, nitrate, carboxylate, substituted carboxylate, dicarboxylate, substituted dicarboxylate primary or secon-dary amine, sulfoxide, phosphine, pyridine-type nitrogen and the like; preferably, there is at least one Pt-anion bond on each Pt molecule; and A is a diamine or polyamine. Complexes of trans geometry [PtX2(L)(L')] where at least L is a planar ligand such as pyridine but preferably quinoline and L' may be amine, sulfoxide or substituted sulfoxide and X is a chloride, nitrate or carboxylate. A process for obtaining bis(platinum) complexes where the two platinum coordination spheres may contain different ligands in each sphere and where the geometry of each platinum coordination sphere may be the same or different.
Patent CA-2067515-C (CA)
Title: Sealed cartridge for the preparation of a beverage
Inventor: FOND OLIVIER
IPC: A47J31/06
Filed: 1992-04-29
Granted: 1999-02-09
Abstract: The invention relates to a sealed cartridge which is intended to be extracted under pressure and which contains a substance (3) for the preparation of a beverage, comprising a cup (2) with an upper face, a substantially frusto-conical lateral wall and a lower face (4) larger in diameter than the upper face, in which the lower face is a cover welded to the periphery of the lower lip of the cup and is made of a flexible material impermeable to oxygen selected from the group consisting of aluminium, an aluminium/plastic  composite,  an  aluminium/plastic/paper composite, a pure plastic or a multilayer plastic.
Patent CA-2069824-C (CA)
Inventor: HENDRIKX JACOBUS GERARDUS MARI
IPC: E05B39/00
Filed: 1992-05-28
Granted: 1998-06-30
Abstract: A security clip includes a transparent reservoir filled with a non-washable, non-freezing, non-toxic ink which is under pressure. A needle is fixed on the lower side of the reservoir and is used to attach the reservoir to electronic security tags for clothing. If the clip is improperly removed from the electronic tag by a shoplifter, the reservoir breaks open releasing the ink and permanently staining the article to which the tag was attached. Use of the reservoir in combination with an electronic security tag provides extra protection against the shoplifting of protected articles from stores.
Patent CA-2071226-C (CA)
Title: Two-layer paper machine cloth
Inventor: HUHTINIEMI JUKKA LEO
IPC: D03D11/00
Filed: 1992-06-15
Granted: 1998-10-20
Abstract: The invention relates to a two-layer paper machine cloth comprising a first and a second longitudinal yarn system and at least three transverse yarn sys-tems. To provide an effective drainage, at least one transverse yarn system (3) is situated on the paper forming side of the cloth and at least two transverse yarn systems (4, 5) are situated on the wear side. One of the yarn systems of the wear side consists of yarns (5) having a smaller diameter than the other yarns (4, 5). The first longitudinal yarn system (1) weaves only with the larger diameter yarns (4) or al-ternatively,  both with the larger diameter and the smaller diameter yarns and the second longitudinal yarn system  (2)  weaves  only with  the  smaller  diameter yarns (5).
Patent CA-2071539-C (CA)
Inventor: OLIVE GRAHAM JOHN
IPC: G06T15/50
Filed: 1991-04-22
Granted: 2001-07-17
Abstract: A method and apparatus for simulating the effect of non-homogeneous fog in an image displayed on a screen. The image is intended to represent the appearance of a model defined in a database in world space coordinate; from an eyepoint position in world space, the model being defined in terms of individual features each having predetermined attributes defining the position and visible characteristics of the feature. Image data is derived from the model for each of an array of sampling points distributed across screen space. A non-homogeneous fog structure is defined world space coordinates as a series of parallel strata of predetermined extinction coefficient. The positions of the eyepoint and a feature to be displayed relative to the fog structure are determined. The distance from the feature to the eyepoint is calculated. An average value of the extinction coefficient between the eyepoint and the feature is calculated from the defined parallel strata, and the attributes are modulated as a function of the calculated distance and the calculated average value of the extinction coefficient.
Patent CA-2073895-C (CA)
Title: Signal processing sequencing in the communication mode of a digital cellular radiotelephone system
Inventor: ROUSSEAU EMMANUEL
IPC: H04W72/08
Filed: 1992-07-15
Granted: 1998-02-10
Abstract: The sequencing of signal processing applies in the communication mode of a digital cellular radio-telephone system for conveying a digitised speech communication between a terminal and a base station by means of traffic frames (TF) each composed of time slots, the terminal having available a time slot for transmission to the base station and a time slot for reception from the base station, the communication being composed of blocks (B) corresponding to groups of speech samples, each block being formed of sub-blocks (SB) each conveyed during the slots of corresponding time of successive traffic frames, and is characterised in that, 
 
  - during each traffic frame (TF) there are carried out: 
 
  + a configuration processing (OP1, OP15) 
  + the processing of a reception time slot (OP6), 
  + the processing of a transmission time slot (OP13), 
 
  - during a particular traffic frame, the transmission frame, there is moreover carried out the processing of a transmission block (OP11), 
  - during a particular traffic frame, the reception frame, there is moreover carried out the processing of a reception block (OP7). 
 
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Patent CA-2075189-C (CA)
Inventor: LIOTTA DENNIS C
IPC: C07H19/10
Filed: 1991-01-31
Granted: 2004-11-30
Abstract: The present invention relates to a method of preparing BCH-189 and various analogs of BCH-189 from inexpensive precursors with the option of introducing functionality as needed. This synthetic route allows the stereoselective preparation of the biologically active isomer of these compounds, .beta.-BCH-189 and related compounds. Furthermore, the steochemistry at the nucleoside 4' position can be controlled to produce enantiomerically-enriched .beta.-BCH-189 and its analogs.
Patent CA-2078296-C (CA)
Inventor: BURKETT FRANKLIN S JR
IPC: H01R12/00
Filed: 1992-09-15
Granted: 1995-12-12
Abstract: This invention provides shielded and wireless connec-tors for interconnecting electronic circuit boards that are stacked in metal carriers. Serial interconnectors through the carriers provide transmission line paths through the stacked layers through connector assemblies embedded in and fed through each carrier in collinear alignment with each other. Each of the embedded feed through connector assemblies has upper and lower button connectors interconnected by a metal conductor, all posi-tions within an axial hole formed by a pair of substan-tially cylindrical dielectric inserts. The upper and lower button connectors protrude from the upper and lower surfaces of the upper and lower adjacent circuit boards, respectively. This invention provides connector assem-blies having the ability to withstand very high inertial forces without degradation of the electrical contact with the metal pads of the respective circuit boards.
Patent CA-2080487-C (CA)
Title: Process for impregnating a textile fabric
Inventor: NEVEU JEAN-LOUIS
IPC: D06B1/06
Filed: 1991-04-10
Granted: 2000-03-28
Abstract: In a process for impregnating a fibrous, woven, knitted or nonwoven fabric with an aqueous liquid, in particular of the type containing a treatment agent, the textile fabric (6) is placed on an endless cloth (4) permeable to liquids, the liquid is poured under gravity onto the textile fabric in the form of a liquid curtain or sheet transverse to the direction of motion of the latter, and a vacuum slit (13) arranged below the cloth produces a vacuum sufficient for at least part of said liquid to pass through the textile fabric. The rate at which the liquid is poured, defined with respect to the weight of the fabric passing below said liquid sheet, is greater than a given value above which the impregnation rate is a function of said depression and independent of the poured quantity, thus permitting uniform impregnation and easy control of the impregnation rate.
Patent CA-2082480-C (CA)
Title: Ink container and ink jet recording apparatus using same
Inventor: SAITO TAKASHI
IPC: B41J2/175
Filed: 1992-11-09
Granted: 1997-10-07
Abstract: An ink container includes a cylindrical member having a closed end and an opposite open end; a flexible member covering the open end of the cylindrical member to define an ink containing portion; the flexible member having a bent portion movable along an internal surface of the cylindrical member with consumption of the ink therein, wherein movement of the bent portion is irreversible.
Patent CA-2089429-C (CA)
Title: Low power noise rejecting ttl to cmos input buffer
Inventor: WANLASS FRANK M
IPC: H03K3/013
Filed: 1993-02-12
Granted: 2002-12-31
Abstract: A low power, noise rejecting TTL-to-CMOS input buffer, without the use of a current consuming voltage reference, has the characteristic of recognizing a logic LOW as less than 0.8 volts and a logic HIGH as greater than 2.0 volts for DC TTL signals while drawing only leakage current from its Vcc power supply, and simultaneously possesses the characteristic of rejecting high-amplitude Vin noise. For an input signal rapidly rising from zero to three volts, the buffer output switches at an input signal level of approximately 2.5 volts; and for the input signal rapidly falling from 3 to zero volts, the buffer output switches at an input signal level of approximately 1.4 volts.
Patent CA-2089943-C (CA)
Title: Optical magnetic field sensor
Inventor: NODA MASAKI
IPC: G01R33/032
Filed: 1993-02-19
Granted: 1997-11-11
Abstract: An optical magnetic field sensor which can precisely measure a magnetic field strength without measurement errors caused by temperature change is provided.  It comprises a light source, a polarizer, a Faraday element, an analyzer, a first light beam-receiving element, a first calculation circuit, a second light beam-receiving element, a second calculation circuit, and a third calculation circuit.  The light beam emitted from the light source is passed through the polarizer, the Faraday element and the analyzer in sequence.          An S polarized light beam after passing through the analyzer is passed through the first light beam-receiving element and an output signal therefrom is calculated in the first calculation circuit.  A P polarized light beam after passing through the analyzer is passed through the second light beam-receiving element and an output signal therefrom is calculated in the second calculation circuit.  The third calculation circuit is supplied with an output V11 from the first calculation circuit and an output V22 from the second calculation circuit to obtain an output V3 based on the equation V3=1/(.alpha./V11+.beta./V22) when V11~V22 are positive values or from the equation V3=1/(.alpha./V11-.beta./V22) when V11~V22 are negative values with the understanding that .alpha. and .beta. are constants and .alpha.+.beta.=1.  A magnetic field strength value is obtained from the output V3 of the third calculation circuit.
Patent CA-2090383-C (CA)
Title: Railway freight brake retainer valve device
Inventor: STAHMER ULF
IPC: B60T15/54
Filed: 1993-02-25
Granted: 1996-11-12
Abstract: A brake cylinder pressure retainer valve device for a railway car having a "direct" exhaust position, a "slow direct" exhaust position, and a "high pressure" retention position.   A cavity in the retainer valve body has a central pedestal on which a rotary type disc valve is mounted.   The disc valve has different sized ports via which pressure is connected from an inlet port (in the retainer valve body) to an outlet port depending upon the position of a manually operated handle to which the disc valve is connected.   One such port is associated with a spring loaded check valve to provide the "high pressure" retention of the brake cylinder  exhaust pressure.   A laterally flexible sidewall of the disc valve member is formed with 180° opposed detent tabs for engagement with a plurality of detent grooves formed in the sidewall of the valve  body  within  which  the  disc  valve  is  operably disposed, the detent grooves being positioned to receive the detent tabs in accordance with the respective openings in the disc valve for alignment thereof with the inlet port in the different brake cylinder exhaust control positions.          Plastic is the material of choice for this brake cylinder pressure retainer valve device.
Patent CA-2093422-C (CA)
Title: Detergent compositions containing cellulase compositions deficient in cbh i type components
Inventor: CLARKSON KATHLEEN A
IPC: C11D3/00
Filed: 1991-10-04
Granted: 2001-04-03
Abstract: Disclosed are cellulase compositions containing one or more endoglucanase components and less than about 5 weight percent of CBH I type components. When incorporated into detergent compositions and used in acidic, neutral, or alkaline washing media, such cellulase compositions impart rotor retention/restoration properties as well as improved softening properties to cotton-containing fabrics. Additionally, such compositions impart reduced strength loss to cotton-containing fabrics as compared to cellulase compositions containing greater amounts of CBH I type components.< /SDOAB>