baber/WOPTO huggingface dataset:
Patent CA-2169300-A1 (CA)
Inventor: SUBLETT BOBBY JONES
IPC: B29L7/00
Filed: 1994-08-01
Abstract: A shrinkable copolyester film having shrinkage of not less than 30 % in either the machine direction or transverse direction after specific heat treatment. The shrinkable film of the present invention is excellent in shrinkage properties and is substantially free from wrinkles, and uneven shrinkage. The copolyester is useful as a shrinkage label for PET bottles.
Patent CA-2171215-A1 (CA)
Inventor: CHERUVU SUBRAHMANYAM
IPC: C08F4/658
Filed: 1994-11-03
Abstract: Dans les techniques de polymérisation et de copolymérisation en phase vapeur de l'éthylène, c'est la température qui commande la masse molaire, appelée MI (MI étant mesurée selon la norme ASTM D-1238 Condition E) du produit résine. Une augmentation de la température de polymérisation a pour effet de réduire MI alors qu'une diminution de cette même température produit une augmentation du MI.
Patent CA-2171373-A1 (CA)
Title: Biothermal and geothermal heat exchange apparatus for a ground source heat pump
Inventor: BARBAN RENO L
IPC: F25B30/06
Filed: 1996-03-08
Abstract: Apparatus for exchanging heat between biothermal and geothermal ground heat sources and a heat pump for a building comprises a tank having a chamber for holding septic waste underground. The tank includes a heat conductive inner membrane for transferring heat to and from the waste. A fluid jacket located outside the chamber passes a heat transfer fluid adjacent a portion of the inner surface of the tank. Waste entry and exist piping transfers the waste to and from the chamber. Fluid inlet piping and outlet piping supplies the heat transfer fluid to and from the heat pump and the fluid jacket. When coupled to a heat pump in the heating mode, heat transfer fluid absorbs heat from biothermal sources within the tank and geothermal sources in and around the tank. In the cooling mode, heat transfer fluid conducts heat from a building to the tank and ground.
Patent CA-2172865-A1 (CA)
Inventor: MAHANEY F ALLEN
IPC: F16L39/00
Filed: 1996-03-28
Abstract: Male fluid couplers (14)  are attached to a control valve (94) mounted in a holder (96).   Female fluid couplers (16) have their sleeve members (72) held in an aperture (108) in a sleeve member retainer (110) by snap rings  (112).   Lever arms  (122 and 124)  are attached to the sleeve member retainer (110) by pins (126 and 128).   Pins (134 and 135) on the lever arms enter slots (136) in the male holder (96).  Movement of the lever arms (122 and 124) moves the female couplers (16) into engagement with the male fluid couplers and allows locking balls  (40)  to move into locking ball grooves (38).   Upon release of the handle (130), the spring (80) moves the sleeve member (72) in a position locking balls (40) in the grooves (38).  Movement of the handle (130) in the opposite direction moves the sleeve members (72)  into position to release the balls (40) from the grooves (38).  Continued movement of the handle (130) moves the female couplers (16)  from engagement with the male couplers (14).
Patent CA-2174124-A1 (CA)
Title: Pyrone derivatives as protease inhibitors and antiviral agents
Inventor: DOMAGALA JOHN MICHAEL
IPC: C07D311/96
Filed: 1994-10-26
Abstract: The present invention relates to novel tri- and tetrasubstituted pyrones and related structures which potently inhibit the HIV aspartyl protease blocking HIV infectivity. The pyrone derivatives are useful in the development of therapies for the treatment of baterial and viral infections and diseases, including AIDS. The present invention is also directed to methods of synthesis of multifunctionalized pyrones and of related structures.
Patent CA-2177229-A1 (CA)
Title: Anti-regurgitation infant formula
Inventor: MARTINEZ SARAH B
IPC: A23C9/20
Filed: 1996-05-23
Abstract: Infant formula containing certain thickening agents useful for treating regurgitation. The thickening agent can be waxy corn starch, waxy rice starch, potato starch, or a mixture thereof.
Patent CA-2178020-A1 (CA)
Title: Three roll press
Inventor: BENTELE RAINER
IPC: D21G1/00
Filed: 1996-06-03
Abstract: The invention relates to a roll press including at least three rolls forming several press nips for the treatment of a web of material.  One press roll comprises a very flexible roll shell which is rotatable around a fixed support and is mounted on the support by at least one support element which has a concave support surface for defining a wide press nip with a cylindrical backing roll.  The backing roll forms an additional press nip with at least one not sag-controlled roll.  To obtain as uniform as possible a press nip between the backing roll and at least one additional roll which is without sag control, the circumference of the roll shell of the backing roll decreases axially towards its ends, i.e., that roll may be crowned.  In addition, the backing roll may have its own roll shell support elements which are either in the press plane or are inclined slightly out of the press plane and/or the hydraulic pressure fluid supplied to the press roll and to the backing roll is adapted to supply a greater pressing force by the press roll.  Optionally, a fourth press roll may form a nip with the additional roll.  A felt passes through each nip.
Patent CA-2180880-A1 (CA)
Inventor: REAGAN PATRICIA M
IPC: H01R13/52
Filed: 1996-07-10
Abstract: A seal for use with an electrical connector is provided. The seal has a tubular configuration with an internal circumferentially extending rib at one end thereof. A weight modified region is provided which forms part of the outer surface of the seal at such one end.
Patent CA-2187243-A1 (CA)
Title: Diesel engine exhaust particle collection device
Inventor: NOJIMA KOUZABUROU
IPC: F01N3/02
Filed: 1996-10-07
Abstract: A diesel engine exhaust particle collection device for collecting, under electrical control, particles 10,10,... in an exhaust from diesel engine is disclosed.  The device has a needle electrode 8 having a needle tip 8a for charging up the particles 10,10,... by creating a corona discharge around the needle tip 8a, a collecting electrode 11 for collecting the charged particles 10a, 10a,... by electrostatic force and a high voltage power source 13 for applying prescribed high voltage between the needle electrode 8 and the collecting electrode 11, the high voltage power source 13 electrically being connected with the needle electrode 8 and the collecting electrode 11.
Patent CA-2187893-A1 (CA)
Title: Treatment of leach liquors for upgrading a titaniferous material
Inventor: HOLLITT MICHAEL JOHN
IPC: C01G23/04
Filed: 1995-04-13
Abstract: An industrially realistic process for alkaline leaching of a titaniferous material is disclosed. The process comprises the following process steps: (I) leaching the titaniferous material with an alkaline leachant to bring impurities in the titaniferous material into solution; and (II) treating the leachant to enhance the effectiveness of the leachant in the removal of impurities in step (I). In particular, step (II) may involve the heating of the leachant or adding additives suck as sodium silicate or lime to cause the precipitation of alumina and silica.
Patent CA-2189094-A1 (CA)
Inventor: RIBADEAU-DUMAS GUILLAUME
IPC: A23G3/34
Filed: 1996-10-29
Abstract: L'invention a trait à un nouveau revêtement cristallin dur à base d'un mélange particulier de polyols. Il présente notamment la caractéristique d'avoir une croustillance améliorée par rapport aux revêtements connus de l'art antérieur. L'invention a également pour objet un procédé d'obtention de ce revêtement particulier et un procédé amélioré de dragéification dure à base de xylitol, de maltitol ou de lactitol ou de leurs mélanges.
Patent CA-2190570-A1 (CA)
Title: Process for producing 3-amino-2-oxo-1-halogenopropane derivatives
Inventor: HONDA YUTAKA
IPC: C07C223/02
Filed: 1996-11-18
Abstract: 3-Amino-2-oxo-1-halogenopropane derivatives are prepared by reacting a protected amino acid with an alkali metal enolate of an alkyl acetate with a halogenating agent for halogenation of the 2-position, or by reacting a protected amino acid with an alkali metal enolate of an alkyl halogenoacetate, to form a 4-amino-3-oxo-2-halogenobutanoic acid ester derivative which is then hydrolyzed and decarboxylated. The 3-amino-2-oxo-1-halogenopropane derivatives obtained in accordance with the invention can easily be converted to 3-amino-1,2-epoxypropanes that are important as intermediates for pharmaceutical preparations including HIV protease inhibitors and certain enzyme inhibitors.
Patent CA-2193198-A1 (CA)
Title: Process for production of a polysuccinimide and derivatives thereof
Inventor: VALLINO BARNEY
IPC: C08G73/10
Filed: 1995-06-28
Abstract: Polysuccinimide is produced by thermal polymerization of a precursor or a reactant admixture that includes an unsaturated compound in a plate-type reactor (14) at temperatures sufficient to initiate polymerization and to form a brittle solid.     The so-obtained polysuccinimide can be hydrolyzed to polyaspartic acid or to a polyaspartic acid salt, if desired. The precursor can be a monomer or a mixture of reactants that form polymerizable intermediates.
Patent CA-2193835-A1 (CA)
Title: Cyclonic reactor
Inventor: AYOUB PAUL MARIE
IPC: B01F23/10
Filed: 1995-06-20
Abstract: A reactor (1) having one or more reactant inlets (2a) to which spargers (3) are affixed and one or more reactant inlets (2b) each having an injection jet (5) is presented. Reactants are introduced into the reactor (1) through the spargers (3) and jets (5) under conditions in which a three-dimensional cyclonic character is created in a well mixed reaction zone (5). This, together with the energy with which the reactants are introduced into the reaction zone (6), facilitates both macromixing and micromixing phenomena. The reactor (1) is particularly useful for reacting chlorine and propylene to obtain allyl chloride.
Patent CA-2195658-A1 (CA)
Inventor: TINGLEY DANIEL A
IPC: D04H5/08
Filed: 1995-07-21
Abstract: A method of manufacturing a glue-laminated structural wood member (10) for bearing a structural load (16) includes bonding together multiple elongate wood segments (12) and a synthetic fiber reinforcement (24, 30) with their lengths generally aligned with the length of the member. The synthetic fiber reinforcement includes multiple synthetic fiber strands (52, 54) held within a resin matrix (56).
Patent CA-2197736-A1 (CA)
Inventor: MACLEAN COLIN R
IPC: A63B21/002
Filed: 1997-02-17
Abstract: Variable resistance fitness harness exercise apparatus capable of delivering an overload on the user's legs without changing the user's natural center of gravity or movement patterns comprises a pair of stretchable cords that are secured to the human user. The cords can be secured, for example, by way of a belt, two knee guides, and foot attachment devices and optional side pads .
Patent CA-2204880-A1 (CA)
Inventor: TOPF MARTIN
IPC: H04R3/02
Filed: 1995-11-14
Abstract: Apparatus for reducing acoustic background noise for use with a telephone handset (10) or a boom microphone device (100) or a boom headset (401) or the like. The apparatus includes first (12) and second (14) microphones which are arranged such that the first microphone (12) receives a desired speech input and the background noise present in the vicinity of the speech, and the second microphone (14) receives substantially only the background noise. The background noise from the second microphone (14) is converted into a corresponding electrical signal and substracted (16) from a signal corresponding to the speech and background noise obtained from the first microphone (12) so as to produce a signal representing substantially the speech.
Patent CA-2205434-A1 (CA)
Inventor: TUKAMOTO TADASHI
IPC: B65H20/24
Filed: 1996-09-13
Abstract: Dispositif de changement de direction du trajet d'une bande d'étoffe dans un appareil de traitement de bandes continues d'étoffe, pour au moins une longue bande de type courroie.  Ce dispositif possède un rouleau de guidage d'introduction ayant un axe rotationnel perpendiculaire à la bande d'étoffe qui est introduite, ainsi qu'un rouleau de guidage d'enlèvement ayant un axe rotationnel perpendiculaire à la bande d'étoffe qui est enlevée.  Un angle relatif est établi arbitrairement entre les axes rotationnels de ces deux rouleaux à une entrée, à une sortie ou dans au moins une section de traitement formant les zones de traitement.
Patent CA-2205886-A1 (CA)
Inventor: COTTON JOE W
IPC: C08K5/00
Filed: 1997-05-23
Abstract: Alkyl amines, alkyl diamines, alkyl polyamines, ether amines, and ether polyamines, neutralized with C3-24 carboxylic acids offer improved liquidity and stability, and readily form stable, monophasic dispersions in water, and are effective in froth flotation of siliceous impurities from ores such as magnetic and hematite iron ores at high pH.
Patent CA-2208779-A1 (CA)
Title: Apparatus for docking boats to each other
Inventor: ALLENBAUGH HOWARD M
IPC: B63B59/02
Filed: 1997-06-25
Abstract: An apparatus for docking a smaller vessel, such as a dinghy, to a substantially horizonal platform or swimstep of a larger vessel, such as a boat. The docking apparatus comprises a pair of mounting brackets attached at spaced locations to the edge of the swimstep. A substantially vertical bumper attached to each mounting bracket extends vertically above and below the swimstep. An adjustment bracket connected between each bumper and mounting bracket permits vertical, horizontal and rotational adjustment of the bumper with respect to the swimstep. For soft dinghies, a line connected to the dinghy and the bumper docks the two together. For hard dinghies, the bumper includes a cushion interposed between the bumper and the hard dinghy.
Patent CA-2210101-A1 (CA)
Title: Process for estimating an image function by iterations
Inventor: IOVLEFF SERGE
IPC: G06T11/00
Filed: 1997-07-10
Abstract: A description is given of a process for the iterative estimation of an image function f from a series of measurements m using a conjugate gradient type algorithm permitting the reversal of an equation of type Af=m.  According to the invention, the aim is not to symmetrize the matrix A before applying the process, which has hitherto been considered necessary in order to ensure the convergence of the algorithm and instead the aim is to make the system of measuring equations quasi-symmetrical by applying an appropriate preconditioning operator.  It is then possible to apply an iterative reconstruction algorithm aiming at minimizing the standard of the residue and where the updating of the descent directions takes place in accordance with the residues and not the gradients. The convergence of the estimate is then saved and is much faster.
Patent CA-2210439-A1 (CA)
Inventor: FREEDMAN GORDON
IPC: B66F9/24
Filed: 1997-07-15
Abstract: Abstract Not Yet Available
Patent CA-2210864-A1 (CA)
Title: System for visual monitoring of operational indicators in an electric power system
Inventor: SCHWEITZER EDMUND O III
IPC: G06V20/10
Filed: 1997-07-18
Abstract: A visual monitoring system for an electric power substation includes at least one camera for obtaining the image of various operational indicators in the substation, either within the control house, outdoors or both. The indicators could be the status of various gauges, including current, voltage and temperature gauges, or other structural elements, such as the position of various switches, the level of oil in a transformer sight glass, or whether a transformer fan is running, among others. The image is then enhanced to accentuate the desired features, and the desired data is then image detected. The resulting information is then compared against a standard to determine whether or not the operational status of the indicator is abnormal.
Patent CA-2212480-A1 (CA)
Title: Thermo-transfer color ribbon for luminescent lettering
Inventor: KRAUTER HEINRICH
IPC: B41J31/08
Filed: 1997-08-07
Abstract: Description of a thermo-transfer color ribbon with (a) a carrier, (b) a layer ofa first thermo-transfer color formed on one side of the carrier, containing a luminescent pigment and (c) a layer of a second thermo-transfer color formed on the first thermo-transfer color layer containing a non-luminescent pigment, whereby, whereneeded, additional layers may be located between the carrier and the layer of the first thermo-transfer color and/or the layer of the first and the second thermo-transfer color.  Said thermo-transfer ribbon is characterized in that in the remission spectrum of the non-luminescent pigment, in the wave length range of the light emitted bythe luminescent pigment there is a remission maximum or an ascending flank of remission.  The thermo-transfer ribbon furnishes print-outs of high optical density without affecting the luminesce output of the luminescent pigment.
Patent CA-2213363-A1 (CA)
Title: Communication network recoverable from link failure using prioritized recovery classes
Inventor: KUSANO TOSHIHIKO
IPC: H04L45/24
Filed: 1997-08-19
Abstract: In a self-healing network, virtual paths between user terminals are classified according to different fault recovery priority levels and communication links are mapped to virtual paths accommodated by the links and to bandwidths remaining in the respective links. Each priority level guarantees a fault recovery with a different amount of network resource. In response to a fault-indicating message identifying a failed virtual path, a search is made through the link-path table for an alternate virtual path and a remaining bandwidth of each link that comprises the alternate virtual path in descending order of the priority classes. In accordance with the priority class of the failed virtual path relative to the priority class of an existing virtual path that shares the same link with the alternate virtual path, a decision is made on whether or not the bandwidth guaranteed by the priority class of the failed virtual path can be allocated to the alternate virtual path from the remaining bandwidth. If the decision is affirmative, the alternate virtual path is established.
Patent CA-2213659-A1 (CA)
Title: Device for mounting large posters on a building
Inventor: MELHUUS TORGRIM
IPC: G09F15/00
Filed: 1997-08-19
Abstract: A large poster mounting frame is provided for displaying a poster along the wall of a building structure.      The poster mounting frame comprising a pair of vertical side guide rails and a support rail extending between and connecting the two side guide rails. The frame can be mounted directly on the side of the building structure. The rails have a U-shaped cross-section with the open portion facing inwardly to form a continuous channel. A pair of grooved wheels are rotatably mounted on the support rail and hoist lines are directed over the grooved wheels and are connected to an upper poster carrying rail attached to the upper edge of a large poster. The lower edge of the poster includes a lower carrying rail. The hoist lines are used to raise the poster along with the upper and lower carrying rail into sliding contact with the side guide rails of the frame until the poster is securely mounted and displayed within the frame. Outwardly beveled ends and notches are provided in the bottom ends of the side guide rails to guide the carrying rails into the frame. A reversable motorized shaft can be used along with one or more support tapes for raising and lowering the large poster. A retaining device, such as a criss-crossed cord or net can be provided across the front face of the side guide rails to further support the poster within the mounting frame.
Patent CA-2214729-A1 (CA)
Title: Energetic copolyurethane thermoplastic elastomer
Inventor: MAROIS ANDRE
IPC: C08G18/64
Filed: 1997-09-08
Abstract: An energetic copolyurethane thermoplastic elastomer is prepared by polymerizing a dihydroxyl terminated telechelic energetic polymer having a functionality of two or less with a diisocyanate at a NCO/OH ratio of about 0.7 to 1.2. The resulting copolymer is easy to incorporate in gun propellant formulations and is recyclable.
Patent CA-2215928-A1 (CA)
Inventor: HAUSER MERLE W
IPC: D21F1/02
Filed: 1996-02-15
Abstract: A papermaking machine has a stock manifold or headbox which is tapered in the machine direction. Paper stock flows through a bank of tubes (18) from the stock manifold to a slice for injecting stock onto a forming wire (12). Each tube in the tube bank (18) extends in a plane which is substantially parallel to the direction of motion of the paper web being formed. The tubes are connected to the interior of the headbox manifold along a stock supply wall. A plurality of supply conduits (36) are connected to the supply wall and discharge emollients such as chemicals and fillers into the manifold where they are immediately drawn, together with the stock, into adjacent tube ends which feed the stock and added chemicals to the slice for forming a paper web.
Patent CA-2216232-A1 (CA)
Title: Capillary movement of water in masonry structures
Inventor: KRISTIANSEN HANS
IPC: E04B1/70
Filed: 1997-10-08
Abstract: A method for dehydrating capillary materials such as moist walls and/or floors of a building structure of masonry or concrete through the principle of electro-osmosis by applying pulsating DC voltage of a specific pulse pattern to primary electrode means embedded in said structure, said primary electrode means (4) forming anode means and secondary electrode means (5) embedded in the ground outside the structure and forming cathode means to be interactive with said anode means, said pulsating voltage having a pulse pattern with a total pulse period T, comprised of a positive pulse of duration T+, a negative pulse of duration T-, and a neutral period or pause of duration Tp, wherein: 0.8 T < T+ <= 0.98 T ; 0.0 T < T- <= 0.05 T ; 0.027 T < Tp <= 0.15 T ; and 3 seconds < T <= 60 seconds.      Suitably, T+ = 0.95 T; T- = 0.01 T; and Tp = 0.04 T
Patent CA-2216843-A1 (CA)
Title: Double-sided imaging
Inventor: LIOR ISHAIAU
IPC: G03G15/23
Filed: 1995-06-06
Abstract: A system for double-sided imaging on a continuous-web substrate (101) having first and second substrate surfaces, the system including an imaging device comprising a toner-image bearing surface (40) having selectively formed thereon first and second images. The system further includes a web-feeder system (102, 110, 112, 113, 126, 39, 41) which selectively brings the first and second substrate surfaces into operative engagement with the toner-image bearing surface (40), to transfer thereto the first and second images, respectively, in accordance with a preselected imaging sequence.
Patent CA-2217600-A1 (CA)
Title: Double-acting pump
Inventor: BAHRTON SVANTE
IPC: F04B43/073
Filed: 1996-04-19
Abstract: A double-acting pump includes two cavities, each of which is divided into an operating chamber (6) and a working chamber (5) by means of a respective movable partition wall (4). Each of the operating and working chambers is provided with a valve-controlled inlet and outlet (7, 9; 8, 9) for a gaseous driving medium and a pump-transported liquid working medium respectively. A device (16) for transmitting movement of one partition wall to the other, and vice versa, extends between the movable partition walls (4). This movement transmission device (16) is spring-like in the movement transmission direction.