baber/WOPTO huggingface dataset:
Patent CA-2228176-A1 (CA)
Title: Isolation and/or preservation of dendritic cells for prostate cancer immunotherapy
Inventor: TJOA BENJAMIN A
IPC: A61K35/26
Filed: 1996-07-29
Abstract: Methods and compositions for use of human dendritic cells to activate T cells for immunotherapeutic responses against primary and metastatic prostate cancer are disclosed. In one embodiment, human dendritic cells, after exposure to a prostate cancer antigen or specific antigenic peptide, are administered to a prostate cancer patient to activate the relevant T cell responses in vivo. In an alternate embodiment, human dendritic cells are exposed to a prostate cancer antigen or specific antigenic peptide in vitro and incubated or cultured with primed or unprimed T cells to activate the relevant T cell responses in vitro. The activated T cells are then administered to a prostate cancer patient. Methods and compositions for human dendritic cells with extended life span and cryopreserved dendritic cells are disclosed.
Patent CA-2231120-A1 (CA)
Title: Process for the preparation of antimicrobial plastics
Inventor: OTTERSBACH PETER
IPC: A01N33/12
Filed: 1998-03-04
Abstract: Disclosed are a process for the preparation of an antimicrobial polymer by polymerizing tert-butylaminoethyl methacrylate and an article (such as a medical or hygiene article) having a surface coating layer of the antimicrobial polymer.  The polymerization may be conducted by grafting polymerization of tert-butylaminoethyl methacrylate on a polymeric surface of a substrate of the article.
Patent CA-2231129-A1 (CA)
Title: Compressed gas release system
Inventor: HOOBERMAN GIDEON
IPC: B63C9/18
Filed: 1996-08-20
Abstract: A compressed gas release system including a compressed gas source (42), the gas within the source is released as a response to a combination of a predetermined threshold external pressure and a defined chemical environment.  In particular, the compressed gas release system includes a housing defining a space; a material (64) being in the space and being solid in a first chemical environment and the material dissolving in a second chemical environment; a biasing member (62) being activated when pressed against the material when the material is solid and, the biasing member is relaxed when the material dissolves; a firing pin (52) including a gas releasing end and, the firing pin being fired when the biasing member is relaxed; a source of compressed gas, the source of compressed gas releasing gas as when the firing pin is fired; a diaphragm (50) having an internal side and an external side, the diaphragm being mounted onto the housing, the internal side of the diaphragm facing the space of the housing, thereby sealing the first chemical environment in the space.
Patent CA-2233439-A1 (CA)
Inventor: BROCHHAUSEN JAMES M
IPC: B65D8/00
Filed: 1998-03-27
Abstract: A collectible package  (36)  includes  at  least  one collectible card (10) having a face (16) that includes a first distinctive image (32).  The first distinctive image (32)  may  include  subject  matter  concerning  a  sports personality,  a music personality,  a film personality,  a cartoon character, or a tourist attraction.  A can (34) has a first end (26, 28), a second end (26, 28), and a wall (18)  coupling the first end (26, 28)  and the second end (26, 28).  The can (34) may include a second distinctive image  (38)  that relates to the first distinctive image (32),  and  may  be  configured  according  to  the first distinctive image (32).  The card (10) is sealed within the can (34) to form the collectible package (36).
Patent CA-2235140-A1 (CA)
Inventor: PERRY GLEN
IPC: C10L3/06
Filed: 1996-11-18
Abstract: At pressures over 1,000 psia, it is advantageous to add to natural gas an additive which is a C2 or C3 hydrocarbon compound or a mixture of such compounds. Above a lower limit (which varies with the additive being added and the pressure), this results in a smaller z factor, representing increased packing of molecules, and therefore leading to a decrease in the amount of power needed to pump the mixture or to compress it.
Patent CA-2237293-A1 (CA)
Inventor: LOGSTON GARY LEE
IPC: H04N7/173
Filed: 1996-08-22
Abstract: Methods and apparatus are described for ensuring that programs comprising at least one of video, audio, and data that are requested by a customer from a service provider (SP) (110) via an interactive information services system (10), which transmits the requested programs in program bearing packets to a set top unit (STU) (90) associated with the customer (130), are accessible by only authorized customers (130). The apparatus is positioned between the SP  (110) and the STU (90) and comprises: means for receiving the program bearing packets in a first network protocol from a first data link (40) and removing the packets from the first network protocol; means for adding conditional access to the program bearing packets; and, means for re-encapsulating the program bearing bpackets in a second network protocol and outputting the program bearing packets over a second data link (50). Methods and apparatus for applying conditional access are described that comprise encrypting selected program bearing packets with a first key; encrypting the first key with a second key; and, encrypting the second key according to a public-key encryption algorithm using a public key corresponding to a private key stored within the STU (90) associated with the customer (130).
Patent CA-2239774-A1 (CA)
Title: Fortification of food with a complex of calcium
Inventor: REDDY SEKHAR
IPC: A23L29/231
Filed: 1997-09-22
Abstract: A fortified foodstuff comprising a fortifying amount of a complex of calcium and a hydrolysed polysaccharide. The foodstuff may be a dairy-based product such as milk or a milk product.
Patent CA-2242354-A1 (CA)
Title: Pyrrolopyrimidines and processes for their preparation
Inventor: BOLD GUIDO
IPC: A61K31/529
Filed: 1997-01-13
Abstract: There are described compounds of formula (I) wherein R1 and R2 are as defined in the description, Q is heterocyclyl bonded via a ring nitrogen atom and having formula (IA) wherein R3 and R4 and m and n are as defined in the description, the ring marked A is a heterocyclyl having from 5 to 9 ring atoms and having at least one saturated bond, it being possible for a further ring hetero atom selected from O and S to be present in addition to the bonding nitrogen atom, the ring system marked B is a free or benzo-, thieno-, furo-, pyrrolo-or dihydropyrrolo-fused carbocyclic ring having from 5 to 9 carbon atoms that is fused to the ring A and may be unsaturated, partially saturated or fully saturated, and the bond marked by a parallel dotted line between the ring systems marked A and B is either a single bond or a double bond, and a salt thereof where at least one salt-forming group is present. The compounds are inhibitors of protein kinases and have, for example, antitumour activity.
Patent CA-2245678-A1 (CA)
Title: High modulus oxygen-permeable multilayer film, packaging process using same, and packaged product comprising same
Inventor: WALDEN MENDY JOYCE
IPC: B32B27/32
Filed: 1997-01-22
Abstract: A multilayer film has a first outer layer, an inner layer, and a second outer layer. The first outer layer comprises a homogeneous ethylene/alpha-olefin copolymer. The inner layer comprises a thermoplastic elastomer. The second outer layer comprises a second ethylene/alpha-olefin copolymer. The inner layer is between the first outer layer and the second outer layer, and is chemically different from the first outer layer and the second outer layer. The multilayer film has an O2-transmission rate of from about 500 to 50,000 cc/m2 24hr STP, and a modulus of at least 60,000 psi. The multilayer film is especially useful for the packaging of O2-sensitive products, such as produce. The high modulus of the film enhances its performance in form-fill-and-seal operations.
Patent CA-2247358-A1 (CA)
Inventor: BURNETT GALE D
IPC: G01N17/00
Filed: 1997-02-27
Abstract: A method and system for detecting corrosion on a pipeline (A). An electromagnetic pulse (26) is transmitted into a pipeline (A) to travel as a propagating electromagnetic wave along the pipeline (A) to a receiving station (35). Both the distance traveled from the transmitting (44) and receiving location (35), and also the time interval for such travel are measured.  Velocity of the wave is dectected as a means of ascertaining whether corrosion is present. Various embodiments, using both multi-channel (80) and single cables, are used to transmit the detected waves, and the waves are received at a plurality of spaced locations (36) along the length of the pipeline (A). For an insulated pipeline, the signals can be received by a directional antenna, and the pulses can be transmitted into the pipeline by an antenna directly on the pipeline or a magnet electrical contact member.
Patent CA-2249793-A1 (CA)
Title: Ultrasonic clamp coagulator apparatus having indexed rotational positioning
Inventor: BAXTER CHESTER O III
IPC: A61B17/28
Filed: 1998-10-06
Abstract: An ultrasonic surgical clamp coagulator apparatus is configured to effect cutting, coagulation, and clamping of tissue by cooperation of a clamping mechanism of the apparatus with an associated ultrasonic end-effector. Selective, indexed rotational positioning of the clamping mechanism and end--effector is achieved by the provision of a detent mechanism incorporated into the clamp drive mechanism of the apparatus. The arrangement permits an elongated portion of the apparatus to be selectively rotatably positioned with respect to an apparatus housing, with an associated ultrasonic drive unit operatively coupled to a waveguide of the apparatus for rotation together with the clamping mechanism. The detent mechanism desirably resists relative rotation of the apparatus unless a predetermined torque is applied thereto, thus facilitating efficient and convenient use during surgical procedures.
Patent CA-2249985-A1 (CA)
Title: Tumour necrosis factor alpha convertase
Inventor: ROCQUE WARREN J
IPC: A61P31/18
Filed: 1997-03-25
Abstract: The present invention relates to tumor necrosis factor alpha (TNF.alpha.), and more specifically to the enzyme TNF.alpha.-convertase (TNF.alpha.-con) that can proteolytically convert TNF.alpha. precursor to mature TNF.alpha.. The present invention provides DNA sequences encoding mammalian TNF.alpha.-con and functional equivalents thereof, recombinant expression vectors comprising said DNA sequences, host cell lines comprising said expression vectors, inhibitors of TNF.alpha.-con, inhibitors modified for use as ligands for affinity purification of TNF.alpha.-con, and methods for treating diseases or conditions resulting from abnormal levels of TNF.alpha. in a mammalian subject.
Patent CA-2250401-A1 (CA)
Title: Amelioration de la rmn ou de l'irm par la presence de gaz nobles hyperpolarises
Inventor: APPELT STEPHAN
IPC: G01R33/48
Filed: 1997-03-28
Abstract: La présente invention, qui concerne généralement les techniques de résonance magnétique nucléaire (RMN) appliquées aussi bien à spectroscopie qu'à l'imagerie, concerne plus particulièrement des procédés dans lesquels on utilise des gaz nobles (par exemple le xénon et l'hélium) hyperpolarisés pour renforcer et améliorer la RMN et l'IRM. En outre, les solutions de gaz hyperpolarisés de l'invention conviennent particulièrement pour l'étude, aussi bien in vitro qu'in vivo, de la dynamique ou de la structure d'un système. Dans le cas des systèmes biologiques, in vivo ou in vitro, l'invention consiste à cibler le gaz hyperpolarisé et à l'apporter dans des régions spécifiques à l'intérieur du système.
Patent CA-2258818-A1 (CA)
Title: Improved keypad for communicating with a microprocessor
Inventor: RANDOLPH GLENN EDGAR
IPC: G06F3/023
Filed: 1997-05-27
Abstract: A keyboard (10) facilitates communication between an operator and a microprocessor of an operator-controlled machine and includes a plurality of function keys (14) and a light guide (16) associated with each function key (14). The microprocessor activates the light guides corresponding to selectable function keys (14) in response to the status of the machine. The light guides (16) thereby assist the operator in deciding which function key (14) to choose. The function keys (14) are also color and a pattern coded and light indicators (56) are included with the keypad (10) which are activated by the microprocessor to broadcast a lighting status representive of the status of the machine. The light indicators (56) and function keys (14) are coordinated so that an operator observing the colors and patterns of a particular function key (14) will know what lighting status will be broadcast when that particular function key (14) is selected.
Patent CA-2258969-A1 (CA)
Title: Antiballistic shaped part
Inventor: VAN DE GOOT ERNST LORENZO
IPC: B32B7/04
Filed: 1997-06-23
Abstract: The invention relates to an antiballistic shaped part comprising a stack of composite layers which are not linked to one another, each composite layer comprising two or more monolayers of unidirectionally oriented fibres in a matrix, the fibres in each monolayer being at an angle to the fibres in an adjoining monolayer, the fibres being aramid fibres or poly(p-phenylenebenzobisoxazole) fibres, the composite layer containing at most 10 % by weight of an elastomeric matrix material (calculated on the basis of the total weight of the composite layer), the composite layer having a total weight of at most 800 g/m2, and the fibre content in each monolayer being between 10 and 200 g/m2. The invention also comprises a method for fabricating said shaped part and body armour in which the shaped part is used.
Patent CA-2259045-A1 (CA)
Inventor: SLESZYNSKI NEAL T
IPC: G01N35/04
Filed: 1997-08-28
Abstract: Methods of constructing a structure for determining an item of interest in a sample are provided.  According to one method, an effective length of movement of a container (15) for holding the sample in a process lane (28) where a process step is selectively automatically performed on the sample in the container (15) is determined.  The process lane (28) is constructed such that the process lane (28) meets at least one of a predetermined throughput and a predetermined physical dimension.  Elements are arranged along the process lane (28) such that the container (15) moves the effective length during performance of a determination of an item of interest.
Patent CA-2260665-A1 (CA)
Title: Drop forming methods and apparatus
Inventor: BERGSTROM KRISTEN A
IPC: B01J2/20
Filed: 1999-02-02
Abstract: A drop former includes a rotary screen forming an internal chamber into which a flowable chemical is introduced, the chamber being kept at atmospheric pressure.     The screen has a thickness in the range of .1 to 1.2 mm.  As the screen moves, the flowable chemical is caused to impinge against a pressure member disposed within the chamber to create a hydrodynamic force which forces the chemical through openings of the screen, thereby forming drops which are transferred onto a transfer surface. The drops harden into particles on the transfer surface and are subsequently removed therefrom and collected. The screen may be formed of a photochemically etched, or laser-drilled, metallic sheet.
Patent CA-2261381-A1 (CA)
Title: Compact, self contained, hall-effect vehicle speed sensor
Inventor: MIERZWINSKI EUGENE P
IPC: G01P1/02
Filed: 1999-02-10
Abstract: A transducer is provided which produces electrical pulses whose amplitude is constant, but whose frequency varies as a function of the rotational speed of a shaft. In addition, the number of pulses per revolution can be selected at the time of assembly by changing a single component. The number of pulses per revolution can be from 1 to 45. This transducer is housed in a compact die-cast aluminum housing suitable for applications as a vehicle, and for distance measuring. The housing has first and second apertures running transverse to each other and merging with each other in the housing, the first aperture receiving a tube having an open portion and an outer peripheral wall thereof. A Hall-Effect sensor is received in the tube so that the Hall-Effect sensor is positioned adjacent the open portion of the tube. The second aperture receives a rotatable shaft having a body with sensible elements thereon, the body being positioned to lie adjacent the Hall-Effect sensor. A first support member is received in the aperture to position and rotatably support a first end of the shaft, an opposite shaft second end being received in a second support member in the second aperture. The shaft second end has a coupling mechanism to couple to a coupling member for rotationally coupling the body to a rotating member whose speed is to be determined.
Patent CA-2261798-A1 (CA)
Title: Headset interface
Inventor: LARSEN LEO
IPC: H03G3/00
Filed: 1997-07-02
Abstract: The present invention concerns an adaptive headset interface for amplification and adjustment of signals between a random headset and a random terminal. The adaptive headset interface comprises digital signal processors, and is further equipped with a modem block over which the adaptive headset can be programmed by a call to a computer over the telephone net, whereby instructions as well as test signals are transferred between the computer and the adaptive headset interface, so that an adjustment is achieved which takes into account the signal transfer in relation to a reference telephone line corresponding to a given standard, or an adjustment which corresponds to the levels which apply for the relevant terminal to which the adaptive headset interface is connected.
Patent CA-2261850-A1 (CA)
Title: Wheelchair propulsion kit
Inventor: MITCHELL RAYMOND L
IPC: A61G5/02
Filed: 1997-07-22
Abstract: A hand or manual propulsion assembly (30, 130) for use with a wheelchair (10) which includes a lever arm (36) journaled to the axis (14, 114) of each of the large wheels (18, 20, 118, 120) on the wheelchair (10) and a crank handle (62) at the end of the lever arm (36, 136) associated with friction pads (58, 60, 158, 160) for engaging the hand rail (26, 126) of the large wheel. When the occupant of the wheelchair (10) rotates and pushes forward or rearward on the crank handles (62, 162) the friction pads (58, 60) come into contact with the hand rail and allows the wheelchair to be propelled forward or rearward.
Patent CA-2265051-A1 (CA)
Title: Torso-conforming releasable diver's weight pouch
Inventor: BOWDEN WILLIAM A
IPC: B63C9/08
Filed: 1999-03-08
Abstract: A torso-conforming diver's weight pouch for use by a diver in a buoyancy compensator vest containing at least one recess. At least one weight for neutralizing the diver's buoyancy is contained within a pocket on the pouch. Attached to the pouch is a curvature retaining device which defines and retains a curved configuration of the pouch. The diver can manipulate the curvature retaining device to determine the pouch's configuration. Such configuration can be changed to conform to the diver's hips. Therefore, when the pouch is installed into a buoyancy jacket, the pouch provides more comfort to the diver.
Patent CA-2265273-A1 (CA)
Inventor: THORSSEN DONALD A
IPC: E21B21/00
Filed: 1999-03-11
Abstract: A method and an apparatus is provided for use in an underbalanced drilling process using exhaust gases wherein some constituents of the exhaust gas combine with water to form acids. The present invention provides a means of deacidifying drilling fluids. The pH of the drilling fluid is monitored and adjusted to prevent corrosion of equipment by acidic drilling fluids. The drilling fluid may also be optionally treated with anti-scaling agents. The drilling fluid may be a gas, a liquid or a combination of both or it may be gasified oil based drilling fluid.
Patent CA-2267454-A1 (CA)
Title: Method and apparatus for determining a contact area between a probe and a specimen
Inventor: LINTILHAC PHILIP M
IPC: G01B11/28
Filed: 1997-09-30
Abstract: An optical probe (20) that is transparent contacts a surface (12) of a specimen such that an area of contact is formed. The probe's contact surface (P) has known geometry. By viewing the area of contact through the probe, the area of contact can be determined. The probe may be positioned between the specimen (10) and the objective of a microscope. The microscope and the probe provide a nondestructive and noninvasive instrument to measure the turgor pressure in a cellular specimen. The area of contact between the probe (20) and a cell is a function of the cell's internal pressure. Application of a known force between probe and cell in combination with knowledge of the probe's geometry permits the use of the contact area to provide a measurement of turgor pressure.
Patent CA-2268599-A1 (CA)
Title: An aircraft landing gear manual release assembly
Inventor: ZAMBELLI ROBERT G
IPC: B64C25/30
Filed: 1999-04-06
Abstract: The invention is illustrated by two embodiments of an aircraft landing gear manual release assembly each comprising a sequential main gear mechanism (MGM) for sequential release of port and starboard main door uplocks (MDU) followed by release of port and starboard main gear uplocks (MGU) and a sequential nose gear mechanism (NGM) for sequential release of a nose door uplock (NDU) followed by release of a nose gear uplock (NGU). The assemblies are characterized by a single control handle actuator (CHA) for movement from a gear stowed position to a gear deployed position for sequential actuation of the main gear mechanism (MGM) followed by actuation of the nose gear mechanism (NGM) through cable assemblies (20 or 120) and (22 or 122). The single control handle actuator (CHA) includes a single control handle (30 or 130) and a first support bracket (31 or 131) movably supporting the control handle (30 or 130) and a lost motion member (32 or 132) movably supported by the first support bracket (31 or 131). The control handle actuator (CHA) further includes a first lost motion connection (33 and 34 or 133 and 134) between the control handle (30 or 130) and the lost motion member (32 or 132) whereby the control handle (30 or 130) first moves the first cable assembly (20 or 120) and upon continued movement thereof moves the lost motion member (32 or 132) to subsequently move the second cable assembly (22 or 122) for the sequential actuation of the main gear mechanism (MGM) followed by actuation of the nose gear mechanism (NGM). A main door uplock member (38 or 138) and a main gear uplock member (39 or 139) are movably supported by a support member (35 or 135) for releasing the main door uplocks (MDU) and the main gear uplocks (MGU), the uplock member (39 or 139) being operably connected to a rotatable cam member (36 or 136) for moving the main door uplock member (38 or 138) and (39 or 139) to a release position before moving the gear uplock member to a release position to effect the sequential release of the door uplocks followed by release of the gear uplocks.
Patent CA-2271234-A1 (CA)
Title: Animal models of human prostate cancer progression
Inventor: SAWYERS CHARLES L
IPC: C12N15/09
Filed: 1997-10-15
Abstract: The present invention provides an immune deficient mouse having a human prostate xenograft of locally advanced or metastatic prostate cancer and uses thereof.
Patent CA-2271921-A1 (CA)
Title: Procede et composition de reduction de boue et de phosphatation au zinc
Inventor: PETSCHEL MICHAEL
IPC: C23C22/07
Filed: 1997-11-19
Abstract: L'invention concerne des équations conçues pour prévoir la quantité de boue qui se forme au cours de procédés de phosphatation au zinc, ainsi que les valeurs de plusieurs autres caractéristiques de ces procédés. En utilisant ces équations, on a découvert de nouvelles compositions qui permettent d'obtenir une faible quantité de boue sans pour autant sacrifier d'autres caractéristiques propres à un bon revêtement au phosphate de zinc.