baber/WOPTO huggingface dataset:
Patent CA-2024595-C (CA)
Title: Heterocyclic thiol sulfenimide compounds
Inventor: ROSTEK CHARLES JOHN JR
IPC: C07D213/70
Filed: 1990-09-04
Granted: 1998-08-18
Abstract: Heterocyclic thiol sulfenimide compounds are useful as an accelerator in the curing of natural and/or synthetic rubbers. The compound can be represented by the formula wherein each of A1 and A2, independently, is at least one heterocyclic ring containing one or more nitrogen atoms therein, or at least one heterocyclic ring containing one or more nitrogen atoms therein and (1) one or more hydrocarbyl substituents, or (2) one or more electron withdrawing groups, or (3) one or more electron releasing groups, wherein A1 alternatively is thiazyl or a dithiocarbamoyl, and wherein R is a (a) hydrogen atom, or (b) a hydrocarbyl radical having from 1 to 16 carbon atoms, or (c) the hydrocarbon radical of (b) wherein one or more of the carbon atoms is an oxygen atom, a nitrogen atom, or a substituted nitrogen atom wherein said substituted group is an alkyl and in combination with said nitrogen atom forms a heterocyclic ring having a total of from 1 to 7 carbon atoms, or (d) the hydrocarbyl radical of (b) containing a halogen, an amino, a cyano, an alkoxy, a hydroxy, or an alkoxycarbonyl. When the heterocyclic thiol sulfenimide compound is utilized as an accelerator for rubber, improved cure rates, longer scorch delay, and better reversion resistance are obtained in comparison to conventional sulfenamides.
Patent CA-2027886-C (CA)
Title: Feuille multicouche en matiere plastique pour constituer desrecipients destines a etre fermes par un opercule soude, et recipients forme a partir de cette feuille
Inventor: PINSOLLE FRANCIS
IPC: B32B27/30
Filed: 1990-10-17
Granted: 1995-09-12
Abstract: Feuille multicouche pour constituer des récipients à operculer par soudage. La couche supérieure 7 est constituée d'un mélange hétérogéne de deux produits ayant des coefficients de viscosité différents, le plus fluide étant compatible avec la couche inférieure 8 de l'opercule. L'enlévement de l'opercule entraîne un déchirement de la couche supérieure 7 par décohésion.
Patent CA-2028774-C (CA)
Inventor: VAUGHAN ROBERT A
IPC: B60J10/04
Filed: 1990-10-29
Granted: 1996-01-30
Abstract: A belt weatherstrip adapted to engage an end flange of a vehicle for operative sealing between a glass window and a vehicle  surface.   The  flange of  the vehicle has  an  inner surface  and  an  outer  surface.   The  belt  weatherstrip  is expandable  to  accommodate  adaptability  to  various  vehicle surface contours by allowing expandability of the width of the weatherstrip.    The  belt  weatherstrip  includes  an  elongated  core substrate which has an inner flange portion for abutting the inner  surface  of the  flange  and  includes  an outer  flange portion and intermediate portion connecting the inner flange portion with the outer flange portion and a plurality of clips for securing the elongated core substrate to the end flange.          An elastomeric sealing lip member is attached to the flange portion for allowing slideable sealing engagement between the flange and a glass pane.  The intermediate portion includes a bend therein in its normal position wherein the bend may be selectively  straightened  to  expand  the  width  of  the weatherstrip for accommodating varying final applications in a vehicle.    A  glass  run  weatherstrip  having  a  bend  in  its intermediate leg is also provided for traversing corners of a door window aperture.
Patent CA-2030727-C (CA)
Title: Rotary arc furnace for treating aluminum dross
Inventor: DROUET MICHEL G
IPC: C22B21/00
Filed: 1990-11-23
Granted: 1993-07-20
Abstract: A process is disclosed, for treating dross containing a metal such as aluminum, in order to recover this metal, In this process, the dross to be treated is introduced into a rotary or oscillating furnace, in which it is heated to a temperature above the melting point of the metal to be recovered while the furnace is rotated or oscillated to cause the metal to be recovered to separate from the dross. After the separation is completed, the metal to be recovered is removed from the furnace prior to removing the balance of the dross. In this process, the furnace that is used is a radiating arc furnace having two opposite electrodes which are preferably made of graphite, between which an electrical arc is generated and maintained in order to provide the desired heating.
Patent CA-2032717-C (CA)
Title: Process for improving the flowability of dimerized 2.4-tolylenediisocyanate
Inventor: KOPP RICHARD
IPC: C07D229/00
Filed: 1990-12-19
Granted: 2001-06-12
Abstract: The invention relates to a process for improving the flowability and preventing the agglomeration of finely divided dimerized 2,4-toluene diisocyanate in which a precipitated silicas and/or pyrogenic silica having a hydrophobic surface is added to the finely divided dimerized 2,4-toluene diisocyanate.   The invention also relates to the finely divided dimerized 2,4-toluene diisocyanate prepared by this process.
Patent CA-2034680-C (CA)
Title: Method and freezer for refreshably freezing food
Inventor: YAMADA YOSHIO
IPC: A23B4/06
Filed: 1991-01-22
Granted: 1997-09-30
Abstract: The present invention is a method for producing refreshable frozen foods such as meat and other food suitable for freezing foods by dipping foods in an agitating jet flow of a liquid anti-freezing medium such as ethyl alcohol under controlling between -30°C and -50°C so as to have refreshable foods to restore it to an original fresh raw state by defrosting, and a super rapid freezer thereof.
Patent CA-2040893-C (CA)
Title: Method and apparatus for cutting and positioning dough in a pan
Inventor: LEWANDOWSKI DANIEL J
IPC: A21C11/10
Filed: 1991-04-19
Granted: 1997-02-04
Abstract: An apparatus and method for cutting a sheet of dough and delivering a cut dough portion to a surface of a pan.    A cutting  ring having a cutting  edge  is positioned on an upper surface of a pan.  A sheet of dough above at least a surface of the pan is pressed against the upper cutting edge to fall onto the dough receiving surface.
Patent CA-2042503-C (CA)
Title: Novel bifunctional linking compounds, conjugates and methods for their production
Inventor: KANEKO TAKUSHI
IPC: A61K47/48
Filed: 1991-05-14
Granted: 2002-07-23
Abstract: The present invention provides novel N-substituted hydrazine bifunctional compounds, novel N-substituted hydrazone derivatives of a cytotoxic reagent incorporating the bifunctional compounds, novel conjugates containing at least one cytotoxic reagent molecule reacted with the bifunctional compound and bound to a molecule reactive with a target cell population, methods for their production, and pharmaceutical compositions and methods for delivering cytotoxic reagents to a target population of cells. The hydrazone bonds of the conjugates of the invention permit the release of free cytotoxic reagent from the conjugates in the acidic external or internal environment of the target cells. The bifunctional compounds, derivatives, conjugates and methods of the invention are useful in antibody-or ligand-mediated drug delivery systems for the preferential killing of a target cell population to treat diseases such as cancers, infections and autoimmune disorders.
Patent CA-2044345-C (CA)
Title: Scanner with document and copy sheet registration means
Inventor: STEMMLE DENIS J
IPC: H04N1/047
Filed: 1991-06-11
Granted: 1997-03-25
Abstract: A combined input scanner and output scanner has a frame assembly, a document transport to transport a document through the scanner in a path in a first direction and, a copy sheet transport to transport a copy sheet through the scanner a document registration means and a copy sheet registration means, the document registration gate including a cover pivotally mounted on the machine for movement between an open and closed position over the document transport path, said cover having at least one document registration gate adjacent its downstream end which extends into the document transport path to register the lead edge of a document when the cover is in the open position, the copy sheet registration means including at least one copy sheet registration gate in the copy sheet transport path to register the lead edge of a copy sheet when said cover is in the open position. The cover has a tab for removing the at least one copy sheet registration gate from the copy sheet transport when the cover is in the closed position over the document transport path.
Patent CA-2048646-C (CA)
Title: Fractional n/m synthesis
Inventor: BLACK GREGORY R
IPC: H03L7/20
Filed: 1991-04-22
Granted: 1995-07-04
Abstract: A frequency synthesizer employs a frequency divider (103) and a frequency multiplier (403) in the feedback loop. The minimum frequency separation between two adjacent synthesized channels is equal to the reference frequency divided by the multiplication ratio of the multiplier. The division ratio of the frequency divider (103), which can be analyzed as the sum of an integer and a fractional portion, is varied with time by a digital sequence, resulting in a minimum frequency increment equal to a fraction of the reference frequency. The multiplier (403) acts to reduce the nonlinearities of the frequency synthesizer when the fractional portion of the division ratio causes a large variation in the instantaneous division ratio by reducing the effective division ratio of the loop.
Patent CA-2051394-C (CA)
Title: Macromolecular spiropyran compounds
Inventor: MIYASHITA AKIRA
IPC: C08F20/36
Filed: 1991-02-04
Granted: 1999-04-27
Abstract: A compound comprising 0.001 to 100 mole percent of a structural unit of the formula wherein W is -CMe2- or -Se-, R1 is C1-C20 alkyl or aralkyl, R2 to R5 each represents H, C1-C6 alkyl, etc., R6 and R7 each represents H, C1-C6 alkyl, etc., X is O or S, provided that when W is -CMe2-, X is S, and 0 to 99.999 mole percent of a structural unit of the formula wherein Y is H or Me and Z represents alkoxycarbonyl, phenyl, etc.
Patent CA-2051905-C (CA)
Title: Construction toy
Inventor: GLICKMAN JOEL I
IPC: A63H33/06
Filed: 1991-09-19
Granted: 1998-04-07
Abstract: A construction toy system uses, as principle components, a connector having one or more gripping sockets, and rod-like  struts  having  end  portions  configured  to  be received in the gripping sockets.   The sockets comprise pairs  of gripping arms,  formed of deflectable  plastic material.  Outer portions of the gripping arms have concave grooves for lateral,  snap-in assembly of struts having complimentary cylindrical connector portions.  The gripping arms have locking projections arranged to interlock with annular recesses near the ends of the struts.  The struts have end flanges, received in a cavity at the closed end of the gripping socket.   Certain  forms of the connecting elements are designed so that an assembly of two such connector elements provides for sockets in each of two planes oriented at right angles to each other to form a right angle corner structure, for example, or a Tee-shaped structure.    The system comprises a variety of connector elements, having one or more sockets arranged to be joined with struts, to form complex structural units.  A plurality of single socket connector elements can be connected with a  succession  of  crosswise  oriented  struts  to  form  an articulated  structure,  of  endless  or  finite  length. Connector elements also may be joined to form connector assemblies with provision for mounting struts in several planar directions,   Struts are provided in graduated sizes according to a predetermined length progression, such that one standard size strut can serve as the hypotenuse of a right isosceles triangle formed with struts of a smaller size.   Complex structures can he assembled using right triangular subunits.  The device is especially adapted for high volume production by injection molding techniques.
Patent CA-2054685-C (CA)
Title: Process and device for cutting slots in tubular bodies
Inventor: DIETRICH KARL
IPC: B26F1/00
Filed: 1990-05-02
Granted: 1998-02-17
Abstract: The invention relates to a process and device for cutting slots (13) in tubular bodies.  the tubular bodies (2) are conveyed intermittently and slotted (13) during the stationary stages.  To this end the cutter (1) has an intermittent conveyor for the tube (2), preferably in the form of at least one conveyor worm (3) with straight and oblique sections (4, 5).  In addition, the cutter (1) has several blade shafts (6) rotatably arranged around the tube (2), the direction and drive of which are matched to the feed rhythm.  With a larger number of blades (7), the blade shafts (6) are divided into two groups and slot the tube (2) in groups and in succession.  The angular position and direction of rotation of the blade shafts (6) are mutually determined so that there is always the same number of blades in the cutting position  and that the moments exerted on the tube (2) by the cutting forces are mutually compensated.
Patent CA-2059268-C (CA)
Inventor: PERRIER RENE
IPC: B08B9/34
Filed: 1991-04-10
Granted: 1997-10-21
Abstract: La présente invention vise un régulateur de débit scellé au moyen d'une bague d'étanchéité.  Un élément de blocage peut se déplacer par rapport au siège d'une des deux portions du corps.  L'élément de blocage est relié au moyen d'une tige rigide à l'autre portion du corps. La commande du robinet est assurée par le mouvement axial des deux portions l'une par rapport à l'autre, par compression élastique du joint qui consiste en un manchon de silicone.  Le régulateur est particulièrement destiné à l'industrie alimentaire pour éliminer l'utilisation de joints dans la commande des robinets ainsi que les singularités dans le circuit d'écoulement.
Patent CA-2067415-C (CA)
Title: Vehicle crash barrier
Inventor: LATURNER JOHN F
IPC: E01F15/00
Filed: 1992-04-28
Granted: 1994-11-01
Abstract: An energy-absorbing crash barrier is provided with multiple energy-absorbing elements.  Each element includes an expanded metal sheet formed as a tubular column which is internally braced with foam.  In some of the sections multiple metal columns are provided, one eccentrically positioned within the other.  The expanded metal columns provide the major energy-absorbing elements of the barrier, and the eccentrically positioned columns define a preferred bending direction which tends to redirect an axially impacting vehicle away from a hardpoint.  The columns in the individual elements are graduated in axial stiffness such that a forward section tends to collapse before the rearward sections, thereby providing staged collapse.
Patent CA-2070011-C (CA)
Inventor: MICHAEL DARYL A
IPC: A47B88/16
Filed: 1992-05-29
Granted: 1995-02-21
Abstract: A channel-stop assembly includes an elongated C-shaped channel 26 having an aperture 76 adjacent one end thereof.  Inserted in the channel is a channel-stop 40 having first and second body members 42, 44 which are hinged together.  One of the body members is slidably fitted into the end of the channel, and the other body member is pivotal to a coupled position wherein a tab 72 on the second body member 44 protrudes within the aperture in the channel to prevent removal of the channel-stop from the end of the channel.  The two body members can be uncoupled for removal of the tab from the channel aperture so that the channel-stop can be removed from the channel.
Patent CA-2073707-C (CA)
Title: Pneumatic injection of powder or granule through submerged tuyeres
Inventor: LEMAY RAYMOND
IPC: F27D3/18
Filed: 1992-07-13
Granted: 1998-04-21
Abstract: A method of injecting powdered material into converters or other metallurgical vessels equipped with at least  one  submerged  tuyere  and  a gas  flow  line interconnecting the tuyere to a bustle pipe or other source  for  blowing  converting  gas  into  the  tuyere comprises providing an injection pipe fitted into the tuyere at an acute angle,  preferably about 20°C, with respect to the centre line of the tuyere and intersecting the tuyere at a point downstream of the gas line flow line entrance, and introducing fluidized powdered material into the tuyere through such injection pipe.
Patent CA-2078184-C (CA)
Title: Acoustic reflection process for molecular sensing and applications of the process
Inventor: KIPLING ARLIN L
IPC: G01N33/543
Filed: 1992-09-14
Granted: 1998-01-06
Abstract: A  process  for  selectively  sensing  analyte molecules in a fluid by reflection of acoustic waves from a sensing surface of a sensing device to which analyte molecules bind is provided.   The sensing surface has a plurality of receptors for which analyte molecules have an affinity.  The process comprises: i)        contacting  a  fluid  in  which  analyte molecules are suspected with the sensing surface; ii)        directing  acoustic waves  at  the  sensing surface; and iii)        detecting a change in a characteristic of acoustic waves reflected from the sensing surface due to analyte molecules binding the receptors.
Patent CA-2086820-C (CA)
Title: Self-doped conductive polyanilines and method of preparation
Inventor: GALAJ STANISLAS
IPC: C08G73/00
Filed: 1992-05-06
Granted: 1998-12-29
Abstract: This invention concerns self-doping conductive polyanilines and their preparation process.  The benzene and/or quinoid nuclei of these polyanilines carry functionalized or substituent grafts corresponding to the formula A-Z in which: A is a hydrocarbonic radical with 2 to 8 atoms of carbon interrupted by at least one heteroatom; Z is a strong acid function or one of its salts.
Patent CA-2089015-C (CA)
Title: Corpuscle-detecting apparatus
Inventor: UENO KUNIO
IPC: G01N15/10
Filed: 1993-02-08
Granted: 2001-05-15
Abstract: An apparatus for detecting corpuscles such as blood cells. The apparatus has an aperture and a constant-current source that supplies an electrical current to the aperture for detection of corpuscles. When corpuscles to be investigated pass through the aperture, the electrical impedance changes, producing a signal (herein referred to as the corpuscle signal). The apparatus further includes a pseudo signal-generating means producing a pseudo signal in the form of pulses. The pseudo signal has a peak value proportional to the amplitude of the input current and is equivalent to the corpuscle signal detected when the corpuscles pass through the aperture. A signal selector means is disposed among the aperture, the constant-current source, and the pseudo signal-generating means. The signal selector means assumes either a first state or a second state. In the first state, the current from the power supply is supplied to the pseudo signal-generating means, and the pseudo signal produced by the pseudo signal-generating means is supplied to the aperture. In the second state, the current from the power supply is supplied to the aperture.
Patent CA-2091226-C (CA)
Title: Blocks and their use
Inventor: SCHAAF CECIL F
IPC: E04C1/39
Filed: 1993-03-08
Granted: 1997-06-17
Abstract: A building block, having a back surface, a front surface,  two  essentially  identical  end  surfaces,  two essentially identical side walls, and a large center opening therethrough, which is aligned with and parallel to the core axis of the block.  The back surface is perpendicular to the plane provided by the cross axis and the core axis, and has three segments including an open center segments and two lateral segments which is a continuum of the large center opening.    The  front  surface  has  three  segments  which comprise a raised center segment, and two lateral segments. Last of all, each side wall has located therein a channel of predetermined width and depth, each channel being aligned with and parallel to the core axis of the block, the length of each channel being equal to the length of the core axis of the block.  This block of "wish-bone" shape can be used to build stable retaining walls and stable decorative walls having novel features such as convenience in manufacturing, handling, and using.
Patent CA-2092303-C (CA)
Title: Landscaping block
Inventor: ZEIDMAN PHILIP A
IPC: E02D29/02
Filed: 1991-09-24
Granted: 2002-09-17
Abstract: A landscaping block (1) for a retaining wall includes a bottom wall (2), a pair of wide sidewalls (3, 5), first (7) and second end walls, and upper (13, 15, 11, 19) and lower steps on the sidewalk for interlocking with overlying and underlying blocks. The blocks also include a transversely extending step (14, 16) that extends downwardly from one end of the bottom wall (2) for engag-ing an underlying block while preventing a front (24) wall of an overlying block from contacting the front wall of the underlying block.
Patent CA-2093223-C (CA)
Title: Powdered cooked cured-meat pigment which is a non-nitrite meat preservative
Inventor: SHAHIDI FEREIDOON
IPC: A23L1/275
Filed: 1991-10-24
Granted: 1999-02-09
Abstract: The pigment, i.e. a mono- and/or di-nitric oxide hemochrome responsible for the color of cooked cured-meats has been prepared from red blood cells, directly or indirectly through a hemin intermedia te. The process for preparing this pigment includes the steps of reacting bovine or hog red blood cells with a nitrosating agent and with at least one reductant, at a suitable elevated temperature, to provide a cooked cured-meat pigment, and drying the coo ked cured-meat pigment by spray-drying, drum-drying or freeze-drying techniques. The improvement of the present inventio n involves stabilizing the cooked cured-meat pigment by the step of: treating the cooked cured-meat pigment with a treating m ixture of (i) a wall material which is one or more of a starch, a modified starch, a starch polymer, a starch derivative, starch pr oducts, N-LOK, maltodextrins, or Schardinger dextrins, e.g. .beta.-cyclodextrin, (ii) a binding agent which is a gum and/or g lycerin, and (iii) an additional agent which is an individual one, or is a mixture of, a reductant and a sequestrant; thereby to provide a sta bilized CCMP product or a PCCMP product. The preformed pigment, as such or in the encapsulated form, when added to meat prior to cooking reproduces the typical color of nitrite-cured product.
Patent CA-2093424-C (CA)
Inventor: CLARKSON KATHLEEN A
IPC: D06M16/00
Filed: 1991-10-04
Granted: 2000-05-02
Abstract: Procédés améliorés de traitement de tissus contenant du coton et tissus produits selon ces procédés. Les procédés consistent notamment à mettre en contact des tissus contenant du coton avec une solution de cellulase contenant une composition de cellulase fongique sensiblement exempte de tous les constituants de cellulase de type CBH I. Les tissus contenant du coton ainsi traités présentent une perte de résistance moindre comparée à des tissus traités à l'aide d'une solution de cellulase contenant une composition de cellulase complète.
Patent CA-2100446-C (CA)
Inventor: LO GALBO ROBERT DOMINICK
IPC: H04B17/00
Filed: 1992-10-19
Granted: 1996-11-19
Abstract: A method for measuring channel delay measures the delay for a message to propagate from a prime site (100, 400) to a re-mote site (200, 500) via the channel (300, 600). The prime site includes a clock for providing a first value, T1, based on the current time at the prime site. The remote site includes a clock for providing a second value, T2, based on the current time at the remote site. Both clocks are synchronized with a common timing source, such as a GPS satellite timing signal. Therefore, T2 equals T1. In one embodiment, the prime site determines T1, and simultaneously sends a message to the remote site via the channel, the mes-sage including T1. Upon receiving the message, the remote site simultaneously determines T2. The remote site decodes the mes-sage to determine T1, and then determines the delay based on the difference between T2 and T1.