baber/WOPTO huggingface dataset:
Patent CA-2145388-C (CA)
Inventor: BASS STEVEN
IPC: C12P21/02
Filed: 1993-11-19
Granted: 2004-08-10
Abstract: Nucleic acid is provided encoding a molecule having certain variations within the phosphate-binding region of native E. col pstS. Additionally provided are bacterial cells comprising this nucleic acid under control of the native pstS gene promoter, and optionally further comprising nucleic acid encoding a polypeptide of interest under control of the alkaline phosphatase (AP) promoter. Bacterial cells containing both pstS variant nucleic acid and polypeptide nucleic acid are cultured in a medium at a concentration of inorganic phosphate that at all phases of cell growth is above the level at which the cells are starved for phosphate. Alternatively, the cells are cultured under conditions whereby the concentration of inorganic phosphate in the culture medium is controlled during the production period so that the polypeptide is produced under the control of the partially induced AP  promoter.
Patent CA-2145972-C (CA)
Inventor: GUREVICH LEON
IPC: H01H85/04
Filed: 1995-03-30
Granted: 2007-11-06
Abstract: A subminiature circuit protector includes a substrate carrying a metal fuse element hermetically sealed in a glass sleeve cartridge. The fuse element may comprise a film deposited on the substrate, or, alternatively a metal strip or wire. Leads extend from opposing ends of the sleeve for connection in a circuit, and a gas is sealed in the sleeve to provide a suitable environment to improve operating lifetime and interrupting capability. A method for making a circuit protector includes placing a substrate carrying a fuse element in a glass sleeve and placing leads in contact with the fuse element. The assembly is heated in the presence of a gas below atmospheric pressure to a temperature sufficient to soften the glass. The pressure is then increased to cause the ends of the glass sleeve to form a hermetic seal about the leads.
Patent CA-2149417-C (CA)
Title: Catheter deflection control
Inventor: AVITALL BOAZ
IPC: A61B18/14
Filed: 1993-11-16
Granted: 2007-04-03
Abstract: A vascular catheter (12) with a distal working tip (14) is provided with precise shape control. The tip section optionally includes a plurality of weakened segments (50, 52) of preferred deflection spaced from the distal end. Reciprocally operable control wires (24, 26) are attached distal each deflection segment and extend to a proximal control handle (18) where they are attached to manual controls (20, 22) for adjusting longitudinal tension to the distal section of the catheter from just beyond the deflection segments in a manner that encourages bending or collapse of the cutout areas.  An additional reciprocating adjustable tubular member (176) which itself optionally may have areas (178) of preferred deflection slidably reciprocates within the main internal lumen of the working catheter section, and may be axially adjusted in relation to the working catheter segment to precisely modify the deflection characteristics of the catheter section sought to be controlled as produced by the wires.
Patent CA-2151915-C (CA)
Title: Non-contacting face seal
Inventor: SEDY JOSEF
IPC: F16J15/34
Filed: 1993-12-14
Granted: 2004-01-27
Abstract: A non-contacting face seal for shafts rotating at high speeds with improved secondary sealing means for low axial drag forces. Secondary sealing means comprise an O-ring (26) with a compliant spring element (28, 52, 56) at its outer circumference. Compliant spring (28, 52, 56) provides a controlled radial force which keeps the secondary seal (26) in a more reliable sealing contact with the seal ring (18) and the seal housing balance surface (30) but avoids excessive radial forces, typical for secondary seal located between two machined cylindrical surfaces. Low axial drag forces due to secondary seal displacements ate important for prevention of sealing face hang-up and consequent high leakage condition.
Patent CA-2154115-C (CA)
Title: Slot machine
Inventor: INOUE HARUO
IPC: A63F3/00
Filed: 1995-07-18
Granted: 2002-02-12
Abstract: A slot machine is provided with a plurality of motors each arranged for rotating a respective one of a plurality of reels. A first drive device starts driving the motors in response to a start signal, and stops driving the motors in accordance with stop signals sequentially generated for respective ones of the motors. A second drive device is provided for driving a part of the motors when it is determined that there is at least an effective winning symbol combination, to rotate those ones of the reels which stop with symbols of the obtained winning symbol combination, again in a special fashion to make an appeal to the winner.
Patent CA-2154515-C (CA)
Inventor: CAMERON GORDON M
IPC: C01B17/80
Filed: 1995-07-24
Granted: 2001-01-02
Abstract: A catalytic converter for converting sulfur dioxide to sulfur trioxide comprising an exterior shell of a heat resistant weldable metal; foundations from which the shell vertically extends; an interior tube of same metal vertically disposed within the shell and defining a passage; the interior tube having i. a first inlet aperture through which the passage receives a first portion of a sulfur dioxide - containing gas from a source of such gas; ii. a second inlet aperture through which the passagereceives a second portion of the sulfur dioxide - containing gas; and iii. an outlet aperture; at least one catalyst bed including an annular bed extending fully between the shell and the interior tube; wherein the annular bed is in direct gaseous communication within the shell with the first passage through the outlet aperture; a plurality of axial heat exchange tubes within the interior tube for conducting hot sulfur trioxide-containing gas from the catalyst bed through the heat exchange tubes to effect heat transfer with and to heat the first and second portions of the sulfur dioxide-containing gas and to cool the hot sulfur-trioxide containing gas; structure for directing the hot sulfur trioxide-containing gas to the heat exchange tubes; and for directing the heated first and second portions of the sulfur-dioxide containing gas through the outlet aperture to the annular bed. The converter offers improved thermal efficiencies and compactness.
Patent CA-2158853-C (CA)
Inventor: BORRETZEN BERNT
IPC: C07H19/052
Filed: 1994-04-05
Granted: 1999-07-27
Abstract: There are provided new compounds having antiviral properties of the formula: B-S-O-Fa, wherein O is oxygen, B-S is a nucleoside analogue in which B represents an optionally substituted heterocyclic ring system, S being a monosaccharide derivative, and Fa is an acyl group of a mono-unsaturated C18 or 20 fatty acid, which fatty acid is esterified with a hydroxyl group of the sugar moiety of the nucleoside analogue or with a hydroxyl group on the non-cyclic group of the nucleosic analogue.
Patent CA-2160302-C (CA)
Title: Vehicle safety apparatus including inflatable restraint
Inventor: O'DOCHERTY JAMES K
IPC: B60R21/20
Filed: 1995-10-11
Granted: 1998-06-09
Abstract: A vehicle safety apparatus (10) includes an air bag (16), a mounting plate (14) for mounting the air bag in the vehicle, and a retaining ring (18).  The air bag (16) is clamped between the retaining ring (18) and the mounting plate (14).  A recess (130) is formed on a first one of the retaining ring and the mounting plate (14).  A projection (100) on a second one of the retaining ring (18) and the mounting plate (14) forces a portion of the air bag (16) into the recess (130) to resist movement of the air bag relative to the retaining ring and the mounting plate.
Patent CA-2165637-C (CA)
Title: Mailing machine utilizing ink jet printer
Inventor: SALOMON JAMES A
IPC: B41J11/51
Filed: 1995-12-19
Granted: 2006-05-30
Abstract: A mailing machine is disclosed in which a digital printing device, preferably of the ink jet type, is mounted for movement between one of two printing positions, in one of which the printing device will print a postage indicia direction on envelopes being fed through the mailing machine, and in the other of which the printing device prints the postage indicia on a strip of tape which is extracted from the mailing machine and affixed to an envelope which is incapable of being fed through the mailing machine. There is also a third position for the printing device which is a maintenance position to which the printing device is moved after each or some other predetermined number of printing cycles for the purpose of cleaning the ink ejecting portion of the printing device and/or maintaining a suitable high ink solvent vapor atmosphere adjacent to the ink ejecting portion of the printing device.
Patent CA-2167080-C (CA)
Inventor: PLANA DURAN JUAN
IPC: C12R1/92
Filed: 1995-05-10
Granted: 2006-12-12
Abstract: Recombinant proteins of the causative virus of porcine reproductive and respiratory syndrome (PRRS), corresponding to ORFs 2 to 7 of the PRRSV Spanish isolate (PRRS-Olot), have been produced in baculovirus expression system using Sf9 cell cultures as a permissive host. These recombinant proteins are suitable for the formulation of vaccines capable of efficaciously protecting porcine livestock from PRRS and for the preparation of diagnostic kits adequate for detection of anti-PRRSV antibodies as well as of PRRSV in a pig biological sample. This invention is of interest to Veterinary Medicine.
Patent CA-2167892-C (CA)
Title: Thermal transfer film cassette and thermal transfer recording method
Inventor: DANJO KOTARO
IPC: B41J17/36
Filed: 1996-01-23
Granted: 2000-07-25
Abstract: A thermal transfer film cassette (1) used after having been removably loaded in a thermal transfer printer (2) is disclosed, which enables an appropriate printing without being used erroneously by the thermal transfer printer and without  being  forged  or  counterfeited.    The  thermal transfer film cassette (1) comprises: a thermal transfer film (11) for transferring thermo-recorded data onto a receiver sheet (4); a cassette casing (10) for housing the thermal transfer film (11) therein; and a light diffractive structure (20) formed on the cassette casing, for forming a diffractive image when irradiated with reproducing light. The diffractive image has printing data related to adapt-ability between the thermal transfer film cassette (1) and the thermal transfer printer (2).  Further, it is prefera-ble to form the light diffractive structure as being fragile to disable the fragile light diffractive structure (40) from being used again for forgery, after having been removed.
Patent CA-2168495-C (CA)
Inventor: BERTOLI CONSTANTIN
IPC: A61K8/92
Filed: 1996-01-31
Granted: 2006-12-12
Abstract: Lipid composition for cosmetic products or for a cosmetic purpose, based on a mixture of oils selected for having an anti-ageing action, while maintaining good hydration of the epidermis and having anti-radical properties. The oils selected are rich in antioxidant unsaponifiable compounds.      This composition is particularly suitable for aqueous cosmetic compositions such as for example creams or sun lotions or for anhydrous compositions for body care.
Patent CA-2173624-C (CA)
Title: Binocular head mounted display system
Inventor: HEACOCK GREGORY LEE
IPC: G06F3/02
Filed: 1994-09-23
Granted: 2005-03-29
Abstract: A binocular head mounted display unit (10) utilizing a single display (28) a nd binocular optical system (30) is shown for projecting an enlarged image of displayed information in the direct line of the user's eyes, while maintaining the user's peripheral vision fre e from obstruction to allow the user to selectively focus on the virtual image or n ot. The binocular optical system (30) directs the user's eyes inward at an angle that is natural for a person viewing an object at a dista nce that is less than infinity. Further, the binocular o ptical system (30) automatically compensates for variations in the interpupillary distance s of various users, wherein those variations may be as g reat as one inch. This head mounted display unit (10) is suitable for a variety of a pplications, including virtual reality applications, as well as a display for a compact portable computer.
Patent CA-2175691-C (CA)
Title: High resolution ultrasonic imaging apparatus and method
Inventor: SCHNEIDER JOHN K
IPC: A61B5/117
Filed: 1994-11-03
Granted: 2010-03-23
Abstract: An ultrasonic imaging system and method for imaging human or animal tissue having a surface and including a probe assembly which comprises a platen (30) for defining a surface (32) in a manner supporting the tissue for imaging, transducer (34) provides an output ultrasonic beam and means (36) positions the transducer (34) closely adjacent supporting means (30) in a manner directing the ultrasonic beam on the surface (32) and so that the size of the beam at its focal point is as small as possible to maximize the resolution of the system.
Patent CA-2175774-C (CA)
Title: Compositions for reduced nox and combustion promotion in fcc processes
Inventor: PETERS ALAN W
IPC: F02M27/02
Filed: 1996-05-03
Granted: 2009-09-29
Abstract: Compositions comprising a component containing (i) an acidic oxide support, (ii) an alkali metal and/or alkaline earth metal or mixtures thereof, (iii) a transition metal oxide having oxygen storage capability, and (iv) a transition metal selected from Groups Ib and/or IIb of the Periodic Table or palladium are useful in FCC processes to reduce NO x emissions and/or to promote CO combustion while minimizing the formation of NO x. The acidic oxide support preferably contains silica alumina. Ceria is the preferred oxygen storage oxide.
Patent CA-2175899-C (CA)
Inventor: HOBDAY HAROLD W
IPC: B25B1/00
Filed: 1994-11-07
Granted: 2005-10-25
Abstract: An improved bar clamp (10) has a slide bar (12) with a first jaw (14) and a second jaw (16), the jaws set in opposing relationship along the slide bar. The first jaw (14) may be advanced towards the second jaw (16) by a setting mechanism that is removably attachable to the first jaw. The setting mechanism for advancing the first jaw has a hand lever (32) and hand grip (28) that act in concert upon manual squeezing to step-by-step advance the first jaw (14). The improved bar clamp also has a jaw comprising a body portion (40), bent along its length at an obtuse angle, which divides the body portion (40) into a upper portion (40a) and a lower portion (40b).
Patent CA-2178980-C (CA)
Inventor: BEBERNES THOMAS DARYL
IPC: B60T13/22
Filed: 1996-06-14
Granted: 2000-08-22
Abstract: A vehicle has a parking brake system including spring-applied, pressure-released brakes. An electrohydraulic control system is provided for selectively energizing a solenoid-operated brake control valve so that release pressure is supplied to the brakes when the transmission control lever is not in neutral or when the vehicle tachometer is indicating a ground speed other than zero.
Patent CA-2180690-C (CA)
Inventor: BIJMAN ED
IPC: H04M1/2753
Filed: 1996-07-08
Granted: 2001-10-30
Abstract: A method of updating speedcall numbers stored in a database comprises the steps of receiving an incoming call at a local telephone station, extracting data representing the calling party' s name and telephone number from the incoming call, and comparing the extracted data with name and number data stored in a database in said local telephone station. The number data in the local telephone station is updated when the extracted data and the stored data does not match.
Patent CA-2189159-C (CA)
Inventor: RAMSDEN GARY W
IPC: G07B17/00
Filed: 1995-04-27
Granted: 2003-01-14
Abstract: Système (10) de réception et d'emmagasinage d'articles en vue de leur ramassage ultérieur par un transporteur, comportant une aire de stockage (14) délimitée par une enceinte (12) extérieure et une interface client (16), une unité de pesage (22) et une unité de paiement par le client (p. ex. un lecteur de carte de crédit). Le système peut en outre comporter un dispositif de commande (100) recevant des informations d'adresse entrées par le client au moyen d'un clavier (28) et les transférant à une imprimante (26) qui imprime l'adresse sur une étiquette destinée à l'article. Le système comporte des sauvegardes interdisant les accès non autorisés à l'aire de stockage et ne délivrant pas de reçu si des capteurs intérieurs ne constatent pas le dépôt effectif de l'article. Dans une variante, il n'est pas prévu d'aire de stockage et l'article est remis à un préposé qui remet l'étiquette d'expédition appropriée à titre de reçu pour l'article déposé.
Patent CA-2189829-C (CA)
Inventor: MELNICK NORMAN
IPC: B43K19/16
Filed: 1996-11-07
Granted: 1999-09-28
Abstract: An improved writing instrument and method for manufacture thereof wherein a coating of a varnish mixture including a hardening component is applied by spraying or dipping or being force fed through a lacquer pot and squeegee to coat the external housing of the writing instrument to provide it with a compressible polyurethane friction coating thereon which is soft to grasp to greatly facilitate grasping and holding thereof. The compressible friction coating is more compressible than the conventional plastic, wood or composite material normally used for the external housing of a writing instrument such as a pen or pencil and provides a high friction surface to facilitate grasping and aid in accurately writing or drawing as desired. The external housing can include one or two coatings of the compressible polyurethane friction coating such as to provide additional compressibility thereof.      The coating forms a non-slip friction surface on the external housing of the writing instrument to provide a soft, luxurious, compressible feel to the writing instrument itself during use thereof.
Patent CA-2192858-C (CA)
Inventor: WOOD WILLARD E
IPC: D21H19/34
Filed: 1995-05-16
Granted: 2007-01-09
Abstract: A barrier film composition can comprise a thermoplastic web comprising a thermoplastic polymer and a dispersed cyclodextrin composition having substituents that compatibilize the cyclodextrin in the film. The thermoplastic/cyclodextrin film obtains substantial barrier properties from the interaction between the substituted cyclodextrin in the film material with a permeant. The substituents on the cyclodextrin molecule cause the cyclodextrin to be dispersible and stable in the film material resulting in an extrudable thermoplastic. Such materials can be used as a single layer film material, a multilayer film material which can be coated or uncoated and can be used in structural materials wherein the thermoplastic is of substantial thickness resulting in structural stiffness. The cooperation between the cyclodextrin and the thermoplastic polymer provides barrier properties to a web wherein a permeant can be complexed or entrapped by the cyclodextrin compound and held within the film preventing the permeant from passing through the film into the interior of a film, an enclosure or container. The permeant can comprise a variety of well known materials such as moisture, aliphatic or aromatic hydrocarbons, monomer materials, off flavors, toxic compounds, etc.
Patent CA-2196785-C (CA)
Title: Liquid enzyme doser
Inventor: PLAZAS PABLO VEGA
IPC: A23K20/189
Filed: 1996-06-04
Granted: 2002-11-12
Abstract: Liquid-enzyme-dosing device which consists in projecting the enzymatic liquid by injection onto the end product. Dosing is highly accurate, metered by an in-piping positive-displacement flow rate meter. Regula- tion of dosing is carried out using a motorized micro- regulation valve. Monitoring of dosing takes place in a microprocessor which combines all the functions of the apparatus.
Patent CA-2198950-C (CA)
Title: Fault indicator having auxiliary fault sensing winding
Inventor: SCHWEITZER EDMUND O JR
IPC: G01R15/18
Filed: 1997-03-03
Granted: 2000-07-18
Abstract: A fault indicator is described which indicates the occurrence of a fault current in a monitored electrical conductor.  The fault indicator includes a magnetic pole assembly which mounts the housing of the fault indicator to the monitored electrical conductor. The magnetic pole assembly includes both a main outer magnetic core assembly and an auxiliary inner magnetic core assembly.  As described, an auxiliary fault sensing winding is disposed on the inner magnetic core assembly so that it becomes energized and provides power for fault circuitry within the fault indicator upon the occurrence of a fault current in the monitored electrical conductor. The fault circuitry positions a flag indicator within the module to visibly acknowledge the occurrence of the fault current in the electrical conductor.  As disclosed, two air gaps prevent the inner magnetic core assembly from communicating magnetic flux from the main core assembly to the auxiliary fault sensing winding while a current sufficiently less than a fault current flows within the monitored electrical conductor.
Patent CA-2199709-C (CA)
Inventor: DENT PAUL W
IPC: H04L27/01
Filed: 1995-09-12
Granted: 2005-11-15
Abstract: A demodulator for demodulating a signal modulated with digital information symbols so as to extract the information symbols is disclosed. A receiver receives a signal over a communications channel and samplers and digitizers produce a sequence of numerical sample values representative of the received signal. Memories are provided each having a number of state memories each associated with a hypothesized symbol string. A controller selectively retrieves values from the memory means and controls the timing of operations thereupon.      A metric computer computes candidate metrics using a hypothesis of a next of the information symbols to be demodulated made by the controller, one of the numerical sample values, path metric values, B-matrices, and U-vectors and the candidate metrics associated state number selected by the controller from memory means. A best predecessor computer determines the best of the candidate metrics to be selected to be written back into the memory means along with a successor B-matrix, U-vector and path history. The successor B-matrices, U-vectors and path history are then updated using corresponding values associated with the best predecessor and one of numerical sample values.
Patent CA-2201793-C (CA)
Title: Process for producing n-(1-alkoxyethyl) carboxylic amides
Inventor: AIZAWA TOSHIYUKI
IPC: C07C231/12
Filed: 1997-04-04
Granted: 2004-10-19
Abstract: A process for producing N-(1-alkoxyethyl)carboxylic amides by reacting alcohols of 1-5 carbon atoms with N-vinylcarboxylic amides in the presence of an acidic catalyst, or by utilizing unreacted starting material, unreacted intermediate or unrecovered product for synthesis of N-(1-alkoxyethyl)carboxylic amides. A process for producing N-(1-alkoxyethyl)carboxylic amides by adding a water-soluble strong acid during reaction between a carboxylic amide and a starting material containing acetaldehyde and alcohol and/or a starting material containing an acetal, in an amount of 2 x 10 -3 to 3 x 10 -1 equivalents to 1 mole of the carboxylic amide in the starting material, and using a strongly acidic ion-exchange resin as the catalyst.
Patent CA-2211856-C (CA)
Title: Electronic stylus with writing feel
Inventor: ARTHUR DAVID
IPC: G08C21/00
Filed: 1996-04-03
Granted: 2001-04-17
Abstract: A non-marking, writing system simulates a physical writing system which has characteristic ranges of writing resistance, sound, resilience and thermal conductivity. The non-marking writing system includes a non-marking writing instrument (12) having an elongated shank (70) with opposite ends. A non- marking tip (76) is connected to one end of the shank (70) for engagement against and movement across a writing surface (46). The writing surface (46)  onto and across which the tip (76) is moved for non-marking writing, creates  an actual writing resistance. The tip (76) is structured and made of selecte d material so that the actual writing resistance falls within the characterist ic range of writing resistance for the physical writing system.