baber/WOPTO huggingface dataset:
Patent CA-2158312-C (CA)
Title: Inflatable enclosure
Inventor: MURPHY JOHN KENNETH
IPC: E04H15/22
Filed: 1995-09-14
Granted: 1999-04-06
Abstract: An inflatable enclosure for amusement purposes and/or promoting physical activity comprising: inflatable means being formed of a plurality of interconnected panels of an inflatable material, taking the form of a chamber, when inflated, said chamber having, an interior, exterior, side walls, front wall, back wall, a floor and a ceiling whereon at least one panel thereof, there is a window of transparent material, blower means for supplying air at a predetermined rate and pressure to said inflatable means, blower aperture means disposed on one of said interconnected panels forming one of said side wall, to allow said blower means to be in contact with said inflatable means, at least one vent means located on each of said panels forming the side walls and the front walls, to provide venting of said air in said chamber of predetermined rate not causing substantial underinflation and /or overinflation, at least one amusement floating means disposed in the interior of said chamber, air actuated entrance/exit area substantially self-sealing, disposed on said chamber, to allow entering into the exiting out of said chamber when inflated while maintaining said chamber inflated, and restraint means to minimize unwanted movement of said inflatable means when inflated.
Patent CA-2160535-C (CA)
Title: Elastomer/aramid fiber dispersion
Inventor: FRANCES ARNOLD
IPC: C08J3/00
Filed: 1994-04-12
Granted: 2004-11-09
Abstract: A process is disclosed for preparing a masterbatch composition of elastomer with a high concentration of aramid fibers, as the sole particulate component, distributed therethroughout.
Patent CA-2161118-C (CA)
Inventor: BIRCHLER MARK ALLEN
IPC: H04B17/00
Filed: 1994-05-11
Granted: 1999-12-28
Abstract: A receiver that receives (203) a stream of in-formation symbols (101) may detect that usability of the stream of information symbols received as fol-lows. Upon receiving the stream of information sym-bols (101), the receiver (203) separates the stream of information symbols into a desired portion and an un-desired portion wherein the desired portion is the origi-nally transmitted stream of information symbols and the undesired portion is interference and noise (204). From the undesired portion and the desired portion, the us-ability can be determined based on a ratio of the two portions.
Patent CA-2166530-C (CA)
Title: Stimulation of tanning by dna fragments or single-stranded dna
Inventor: GILCHREST BARBARA A
IPC: A61K9/127
Filed: 1994-07-07
Granted: 2006-10-17
Abstract: A method of stimulating pigment production in mammalian skin, as well as protecting mammalian skin against ultraviolet damage, is disclosed. Also disclosed is a method of stimulating pigment production i n mammalian cells, a method of stimulating melanogenesis in mammalian melanocytes, and a culture medium for stimulating melanin production. Preparations useful in the present methods are additionally disclosed. The methods comprise administering to the epidermis or to the cells DNA fragments, either single- or double-stranded, or a mixture of both, or deoxynucleotides, dinucleotides, or dinucleotide dimers in an appropriate vehicle, such as a liposomal preparation or propylene glycol. The preparations include DNA fragments, deoxynucleotides, dinucleotides, or dinucleotide dimers and an appropriate delivery vehicle, such as liposomes or a propylene glycol. The D NA fragments, deoxynucleotides, or dinucleotides used in the methods or in the preparations can be ultraviolet-irradiated. The preparatio ns are sunlight independent tanning or melanogenesis-stimulating agent.
Patent CA-2167408-C (CA)
Title: Process for making hiv protease inhibitors
Inventor: ASKIN DAVID
IPC: C07D401/06
Filed: 1994-07-11
Granted: 2003-09-16
Abstract: Intermediates of structural formula (A) can be made by reacting a primary or secondary amine with glycosidol or an activated derivative thereof. The process and intermediates are useful for synthesizing HIV protease inhibitor compounds.
Patent CA-2167770-C (CA)
Inventor: FISCHER HAROLD LEWIS
IPC: B21B45/02
Filed: 1996-01-22
Granted: 1999-06-15
Abstract: A method of processing steel strip such that the steel strip can be temper rolled at the increased speeds and better surface texture control of prior art dry lubricants, yet the steel strip can be temper rolled with less frequent replacement of temper mill working rolls.   Further,  the resulting steel strip has increased stretchability and can be temper rolled to achieve sufficient reduction of yield point elongation at lower working roll pressures and/or lower strip tension, previously only effective when the steel  strip was lubricated with a wet lubricant film. Enhanced corrosion-resistance is another advantage of this process.
Patent CA-2171839-C (CA)
Inventor: JOHNSON HUGH GRIFFITH
IPC: D06F58/22
Filed: 1994-09-15
Granted: 2001-02-27
Abstract: A rotating drum clothes drier (1) has an annular lint filter (28, 30) which rotates with the drier drum (4) and which encircles the drier door (18). Heated air enters an inlet (8) at one end of the drum (4), passes through the clothes in the drum (4) (picking up lint from the clothes), through the annular lint filter (28, 30) and out of the drier (1). During operation, lint collects on the inner surface of the rotating filter (28, 30), eventually building up to form a felted layer. A scraper blade (42) fixed to the drier cabinet (2) and aligned with (but displaced a fixed distance from) the surface of the filter (28, 30) peels tbe felted layer of lint from the filter (28, 30) once the thickness of the felt is such that the scraper blade (42) contacts the lint felt. The layer of lint felt thus removed from the filter surface (30) is then collected in a cavity (19) within the drier door (18) for storage and later disposal.
Patent CA-2171900-C (CA)
Inventor: PETRILLO GINO A
IPC: H02J7/00
Filed: 1996-03-15
Granted: 2000-05-23
Abstract: A charge control apparatus and method for charging of an electrical energy storage device, such as a rechargeable storage battery, by an electrical energy source, such as a photovoltaic panel, provides multiple charge setpoint selection means wherein the electrical connection of one or more setpoint control terminations to the three electrical potential contacts storage device "+" no contact (NC), or common "-", produces a specific and predefined charge setpoint condition, including charge termination and resumption voltage thresholds, from a plurality of charge setpoint possibilities. Temperature compensation is employed in multiple setpoint charge control to maintain setpoint thresholds essentially constant with apparatus temperature and to effect a change in setpoint thresholds with storage device temperature in accordance with storage device charging characteristics.
Patent CA-2174889-C (CA)
Title: A 3-d acoustic infinite element based on an oblate spheroidal multipole expansion
Inventor: BURNETT DAVID STORER
IPC: G06F17/50
Filed: 1996-04-24
Granted: 2000-01-11
Abstract: In an improvement over conventional finite element techniques, an oblate spheroidal infinite element is used for the modeling of acoustic fields in exterior, fluid-filled domains surrounding a structure.  This oblate infinite element is based on a multipole expansion that describes, to arbitrary accuracy, any scattered and/or radiated field exterior to an oblate spheroid of any eccentricity.  The oblate infinite elment is readily incorporated in any structural or acoustical finite element code.
Patent CA-2179711-C (CA)
Title: Fluid cooled and perfused tip for a catheter
Inventor: BRUCKER GREG G
IPC: A61B18/00
Filed: 1994-12-21
Granted: 2004-08-03
Abstract: The invention relates to an ablation catheter (20) which controls the temper ature and reduces the coagulation of biological fluids on a tip (26) of a catheter (20); prevents the impedance rise of tissue in c ontact with the catheter tip (26), and maximizes the ene rgy transfer to the tissue, thereby allowing an increase in the lesion size prod uced by the ablation. The ablation catheter includes a t ip (26) for applying electrical energy to biological tissue. Passages (48) are posit ioned within the tip (26) in a variety of manners for di recting a fluid flow through the tip (26) to the exterior surface of the tip (26) to c ontrol the temperature and form a protective fluid layer around the tip (26). Monitoring structure (47) is also positioned within the tip fo r measurement of the electrical potentials in a biologic al tissue. Ablation electrode structure (30) is also positioned within the tip (26) for application of ablative energy to the biological tissue . A flexible extended embodiment electrode (90) provides the capability to form deep, lin ear lesions along a portion of a heart wall during ablat ion for the treatment of particular arrhythmias.
Patent CA-2180167-C (CA)
Title: Automated thermoset moulding method and apparatus
Inventor: RITCHIE JACK J
IPC: B29C43/36
Filed: 1996-06-27
Granted: 2001-02-06
Abstract: An automated transfer/injection molding apparatus and process is defined that includes a charge forming unit, a shuttle unit, and a molding unit. The charge is formed from one or more slabs of reinforcing fibers and a resinous material. Once formed, the charge is preheated in the charge shuttle unit and is delivered to the molding unit, whereupon the preheated charges are forced by the pressure of a movable platform under vacuum into a mold cavity for polymerization. The fibers within the slabs are randomly oriented in parallel horizontal planes such that they are always parallel to the direction of initial flow into the cavity.
Patent CA-2182366-C (CA)
Title: Dispositif d'imagerie par rayonnement electromagnetique utilisant des transistors a couches minces a double grille
Inventor: SINGH SURENDRA
IPC: H01L29/786
Filed: 1994-02-11
Granted: 2000-02-29
Abstract: Dispositif d'imagerie par rayonnement électromagnétique comprenant une couche d'absorption d'énergie recouvrant un réseau de transistors à couches minces. Chacun des transistors à couches minces présente une double grille. La grille inférieure permet une sélection des rangées, tandis que la couche supérieure du même dispostif module le courant conduit par le transistor. Le fait d'utiliser des doubles grilles permet une réduction du nombre de transistors par rapport à des dispositifs d'imagerie actuels, augmentant ainsi le rendement de la production. De plus, l'utilisation de transistors à doubles grilles permet une polyvalence accrue dans le choix du point de polarisation des transistors.
Patent CA-2182912-C (CA)
Title: Out-of-band control for performing a loopback test for asynchronous transfer mode (atm) networks
Inventor: MOLL KEITH EUGENE
IPC: H04L12/56
Filed: 1996-08-08
Granted: 2000-11-14
Abstract: The loopback test consists of a user-application interface that connects the network operator to substantially all of the ATM points in the network. In operation, the network operator selects two ATM points as the loopback and source endpoints for the loopback test.  The virtual path identification (VPI), virtual channel identification (VCI) and payload type indicator (PTI) that will be in the address header of the test cell when it arrives at the loopback endpoint location and the identification of the loopback endpoint are transmitted to the loopback endpoint in a setup message via a link from the UAI.  The VPI, VCI and PTI that constitute the address header of a test cell injected at the source endpoint and destined for the loopback endpoint, and the location identification of the source endpoint are provided to the source endpoint in a setup message via a separate link from the UAI.  The source endpoint formats a test cell based on this information and injects the cell into the network where it is routed based on the address header. The targeted loopback endpoint monitors the node identified in the setup message anticipating the arrival of the test cell.  When the test cell arrives, it is captured by the loopback endpoint, examined to ensure that it is the appropriate loopback cell and retransmitted to the source endpoint.
Patent CA-2186176-C (CA)
Title: Method and apparatus for ozone bleaching of cellulosic pulp at low consistency
Inventor: HORNSEY DEREK
IPC: D21C9/153
Filed: 1996-09-23
Granted: 2002-11-26
Abstract: A method of bleaching a pulp at low consistency employs chlorine dioxide and/or chlorine, to partially bleach the pulp, the aqueous partially bleached pulp flows along a sinuous flow path providing a high ratio of flow path of aqueous pulp to length of effective travel of the aqueous pulp. Ozone is introduced to the aqueous pulp at spaced apart locations in the flow path so that a low partial pressure of ozone is established in the flow path which favours chemical oxidation of the lignin and low chemical attack on cellulose. In this way effective bleaching is achieved with reduced use of chlorine or chlorine dioxide and reduced production of chlorinated compounds.
Patent CA-2197323-C (CA)
Title: Method and apparatus for frame accurate access of digital audio-visual information
Inventor: PORTER MARK A
IPC: H04N7/50
Filed: 1996-07-12
Granted: 2001-10-30
Abstract: A method and apparatus for use in a digital video delivery system is provided. A digital representation of an audio-visual work, such as an MPEG  file, is parsed to produce a tag file. The tag file includes information about each of the frames in the audio-visual work. During the performance of the audio-visual work, data from the digital representation is sent from a video pump to a decoder.  Seek operations are performed by causing the video pump to stop transmitting data from the current position in the digital representation, and to start transmitting data from a new position in the digital representation. The information in the tag file is inspected to determine the new position from which to start transmitting data.  To ensure that the data stream transmitted by the video pump maintains compliance with the applicable video format, prefix data that includes appropriate header information is transmitted by said video pump prior to transmitting data from the new position. Fast and slow forward and rewind operations are performed by selecting video frames based on the information contained in the tag file and the desired presentation rate, and generating a data stream containing data that represents the selected video frames. A video editor is provided for generating a new video file from pre-existing video files. The video editor selects frames from the pre-existing video files based on editing commands and the information contained in the tag files of the pre-existing video files. A presentation rate, start position, end position, and source file may be separately specified for each sequence to be created by the video editor.
Patent CA-2203376-C (CA)
Inventor: ROBERTSON DAVID
IPC: B42D25/23
Filed: 1995-10-24
Granted: 2006-07-04
Abstract: An assembly (46) for creating laminated cards for printing by a laser printe r has a backing sheet. The backing sheet (60) has a first side with a release coating, and a second side with a printable surface. The assembly also has a card (66) which has been cut from the backing sheet (60). A lamination sheet (52) adhesively adheres to the first side of the backing sheet and to the cut card (66). A lamination strip (80) which has been cut from the lamination sheet (52) has a first portion which adheres to and covers one surface of the card. The lamination strip (80) also has an integral second portion which adheres to t he backing sheet adjacent to the cut card. The lamination strip (80) maintains the cut card in the same position relative to the backing she et (60) that the card had prior to being cut. The assembly (46) has a substantially constant thickness and substantially flat upper and lowe r surfaces so that the assembly can pass through a complex paper path without jamming. A method for creating laminated cards from such an assembly has several steps. A user feeds the assembly into a printer. The printer prints onto the surface of the card. The user removes the card from off the assembly (90) and peels the lamination strip from the assembly. The user then folds the lamination strip to cover t heprinting surface of the card.
Patent CA-2204803-C (CA)
Title: Process to prepare bridged phosphole-cyclopentadienyl compounds
Inventor: WANG QINYAN
IPC: C08F10/02
Filed: 1997-05-08
Granted: 2005-11-15
Abstract: A new family of phospholes having a metalloid bridge to a cyclopentadienyl group is prepared by reacting an organometallic cyclopentadienyl reagent with a "halogenated phosphole" (having a halogen or pseudohalogen group). The new phospholes may be used to prepare organometallic phospholyl complexes. Group 4 metal complexes of these phospholes are excellent polymerization catalysts, especially for the polymerization of olefins at high temperature.
Patent CA-2208160-C (CA)
Inventor: BURGESS RALPH D JR
IPC: B06B1/16
Filed: 1995-12-20
Granted: 2001-05-01
Abstract: Single drive conveyor apparatus (10) including an elongated material-conveying conveyor having vibration-generating means (V) connected to one end thereof and vibrating the same substantially only in a direction parallel with the longitudinal centroidal axis thereof and including two pairs of parallel vibration- generating shafts (21,22 and 28,32), each pair having axial displacement relative to the other and each shaft of each pair carrying eccentrically mounted weights (35,37 and 29,33) generating equal forces and rotating in opposite directions, said pairs of shafts rotating at different speeds and each pair carrying a pair of equal force-generating and eccentric weights (35,37 and 29,33) different from that of the other, a continuous flexible drive element (76) having opposed continuums (77,78) extending around and in driving relation to each of said pairs of shafts (21,22 and 28,32), and controllably shiftable phase-adjustment/motion-altering mechanism (50) engaging each of said continuums and shortening one of said continuums (77,78) while lengthening the other as said mechanism (50) shifts to thereby controllably alter the axial displacement existing between the shafts of said two pairs.
Patent CA-2210607-C (CA)
Inventor: CHUANG KUO-CHEN
IPC: B65D83/08
Filed: 1997-07-16
Granted: 2003-07-08
Abstract: The present invention relates to an aluminum foil cutting desire without steel blade,and particularly to a safe anti convenient cutting device without steel blade, including a sliding sheet to compress aluminum foil for breaking through along its length, and it comprises a sliding sheet with an are compression edge mounted in a push seat including at least a pair of sliding compression wheels to match said push seat for mounted in the sliding rail of a main case, i.e. a cradle and chucking sheet extending from the maim base directly corresponding to the positioning of an aluminum foil packing box, and aluminum foil as pulled out at desired length to be placed on the end of sliding rail, and sliding of push seat and compression of aluminum foil with the compression edge of sliding sheet to break through elongation limit of aluminum foil so as to cut it off thereof.
Patent CA-2214154-C (CA)
Title: Temperature-gradient type multistage condenser
Inventor: OKAMOTO JOJI
IPC: B01D5/00
Filed: 1997-09-09
Granted: 2000-05-09
Abstract: In the temperature-gradient type multistage condenser, a first cooling step is carried out at an outer cooling cylinder storing  a freezing mixture.  The outer cooling cylinder has an opening at the upper portion thereof and is constructed of double walls having a predetermined space between the walls, a second cooling step is carried out at a vertical pipe disposed substantially coaxially in the outer cooling cylinder, and a third cooling step is carried out at an inner cooling cylinder through which the vertical pipe passes.  The cooling capacity is gradually increased as cooling proceeds from the first cooling step, and becomes substantially highest at the third cooling step wherein solvent vapor becomes thin.
Patent CA-2218537-C (CA)
Title: Machine pour la fabrication de carton ondule simple face munie d'un cylindre cannele intermediaire de petite taille
Inventor: MARSCHKE CARL R
IPC: B31F1/28
Filed: 1997-03-26
Granted: 2001-10-30
Abstract: La trajectoire en labyrinthe de la ligne de contact entre deux cylindres cannelé d'une machine pour la fabrication de carton ondulé simple face est sensiblement raccourcie grâce à l'utilisation d'un cylindre cannelé intermédiaire (12) de petit diamètre, pris entre deux cylindres cannelés classiques (10, 11) de gros diamètre. Les deux cylindres de gros diamètre bloquent entre eux le cylindre plus petit, empêchant ainsi qu'il ne plie sous le poids des charges d'ondulation. La machine à onduler peut fonctionner à vitesse élevée sans entraîner une augmentation de la trajectoire en labyrinthe et de la tension de la bande, caractéristique des cylindres cannelés de gros diamètre.
Patent CA-2218693-C (CA)
Inventor: KAITANI ETSUKO
IPC: B22F3/14
Filed: 1996-09-11
Granted: 2000-10-10
Abstract: Self-tuning materials which can efficiently emit or receive radio waves in spite of being simple in their construction and small in their dimension, and are applied to patch antenna, wave directors or the like. Metallic chips containing two or more kinds of ingredients which are distributed in a layered, net-like or needle-shaped configuration, and an organic or inorganic bonding material which is small in dissipation of electric power under radio waves of high frequencies are mixed with each other, and are pressurized under a high pressure while being highly electrified in the direction perpendicular to the pressurizing direction to mold the metallic chips and the bonding material in a plate-shaped configuration while being heated.
Patent CA-2227789-C (CA)
Inventor: HUNT SYBILLE MARIE
IPC: C12P21/02
Filed: 1996-07-26
Granted: 2007-05-01
Abstract: Methods of production of desired recombinant proteins, polypeptides and peptides are disclosed which utilise mammalian host cells engineered for autonomous and regulated growth in low cost protein/serum-free culture media. Preferred host cells express insulin or an insulin-like growth factor, and/or transferrin and are engineered so that addition of an inducer (e.g. ZnCl2 + CdCl2) halts growth and simultaneously induces the expression of the desired recombinant protein, polypeptide or peptide.
Patent CA-2230541-C (CA)
Title: Thawing tube guide for a culvert
Inventor: SAGAR ROBERT
IPC: F16L53/32
Filed: 1998-02-26
Granted: 2001-08-07
Abstract: A thawing tube guide is prepositioned at the opening of a culvert to facilitate maintenance personnel in passing a culvert thawing tube with a power head into a culvert opening which is covered by ice, snow or an ice slurry. The culvert thawing tube guide includes a guide pipe having a discharge end positioned within the culvert and an inlet end positioned in at an easily accessible location. A cap and a reflective material are attached to the inlet end to prevent the accumulation of debris within the tube and to aid in detecting its location respectively.