baber/WOPTO huggingface dataset:
Patent CA-2267329-A1 (CA)
Inventor: CHAMBERLIN JAMES B
IPC: F16J15/32
Filed: 1997-10-01
Abstract: A seal (12) that is particularly suitable for use in a gas spring (14) and other high pressure hydraulic and pneumatic sealing applications and that minimizes the leakage of relatively high pressure gas and lubricating oil from the rod end of the gas spring or other applications. The generally annular seal body (62) includes a number of convex sealing lobes (74, 76, 78, 82, 84) on its radially inwardly and outwardly facing surfaces. All of the sealing lobes have a predetermined radius and project radially beyond the plane of their respective surfaces. The axial facing surfaces (68, 72) of the seal body (62) are generally flat or non-concave. The seal also includes a wiper insert (94) secured in a recess (92) in one corner of the radially inwardly facing surface (64) of the seal body (62). When the seal body (62) is compressed between the relatively movable, annularly spaced piston rod (32) and cylinder (16), the compression induced stress in the seal causes the seal body (52) and insert (94) to form an effective gas and oil seal.
Patent CA-2267331-A1 (CA)
Inventor: SERVE WILFRIED
IPC: C11D3/386
Filed: 1997-09-22
Abstract: The object of the invention is to improve agents for cleaning surfaces soiled with protein and/or fat, in particular with respect to the effect of these agents on deposits of milk and milk products. To that end, at least one protease and/or at least one lipase as enzyme(s), and at least one surfactant component and at least one acid component are used.
Patent CA-2267721-A1 (CA)
Title: Scheme for fast realization of encryption, decryption and authentication
Inventor: TAKAGI TSUYOSHI
IPC: H04L9/30
Filed: 1999-03-24
Abstract: A new scheme for fast realization of encryption, decryption and authentication which can overcome the problems of the RSA cryptosystem is disclosed. The encryption obtains a ciphertext C from a plaintext M according to C ~ M e (mod n) using a first secret key given by N (~ 2) prime numbers p1, p2, ~, p N, a first public key n given by a product p1 k1p2 k2 ~ p N kN where k1, k2, ~, kN are arbitrary positive integers, a second public key a and a second secret key d which satisfy ed ~ 1 (mod L) where L is a least common multiple of p1-1, p2-1, ~, pN-1. The decryption recovers the plaintext M by obtaining residues M p1k1, M p2k2, ~, M pNkN modulo p1k1, p2k2, ~, p NkN, respectively, of the plaintext M using a prescribed loop calculation with respect to the first secret key p1, p2, ~, p N, and by applying the Chinese remainder theorem to the residues M p1k1, M p2k2, ~, M pNkN. This encryption/decryption scheme can be utilized for realizing the authentication.
Patent CA-2270315-A1 (CA)
Inventor: ZHU SHAWN
IPC: A01N25/02
Filed: 1999-04-28
Abstract: Quaternary complex aromatic acid salts of the formula:     (see formula I) where R1 is an alkyl group having 1 to 4 carbon atoms, which may optionally contain a hydroxyl group, R2 and R3 are independently alkyl or alkenyl groups, which may be optionally interrupted with ester, ether oxygen and/or amido linkages, the R2 and R3 groups having a total of 8 to about 30 carbon atoms, R4 is a group as defined for R1 or for R2, Z is H or OH, R5 is alkyl, alkaryl, aralkyl, halo, alkoxy, hydroxy and m is 0-4, are stable in aqueous dispersion over a wide range of pH. The compounds are effective as emollients, lubricants and hydrophobes, and can be used in skin care and lubricant compositions, as carriers for biological actives and for other purposes.
Patent CA-2271104-A1 (CA)
Title: Dispositifs de blocage
Inventor: MILLER THOMAS G
IPC: B65D45/12
Filed: 1997-11-05
Abstract: L'invention concerne des dispositifs de blocage (17) destinés à être montés sur une première section de boîtier, afin d'assujettir cette première section à une seconde section de boîtier. Ces dispositifs sont notamment conçus pour être utilisés avec des boîtiers de filtre à air. Plusieurs conceptions décrites comprennent des dispositifs à fil métallique plié et présentant un premier segment de poignée (21), formé à partir d'une seule pièce de fil métallique plié, ainsi qu'un segment de blocage ou crochet formé à partir d'une seconde pièce de fil métallique plié. L'invention concerne des agencements préférés, utiles avec des sections de boîtier en matière plastique, ainsi qu'un autre dispositif de blocage se composant d'un seul élément de blocage moulé.
Patent CA-2277198-A1 (CA)
Title: Stabilized aqueous nucleoside triphosphate solution
Inventor: IHLENFELDT HANS-GEORG
IPC: C12Q1/6869
Filed: 1997-11-11
Abstract: The invention relates to stable aqueous solutions containing one or more nucleoside triphosphates, wherein each solution has a pH value higher than 7.5 and no additional stabilizing substances. The nucleoside triphosphate solutions are specially used for DNA  synthesizing reactions, for instance Rt-PCR, cycle sequencing, random priming and nick translation. One of the most important applications of corresponding solutions containing deoxy-nucleoside triphosphate (d-NTP) is their use in the polymerase chain reaction (PCR).
Patent CA-2277714-A1 (CA)
Inventor: MAXWELL TERRANCE DEAN
IPC: E21B7/08
Filed: 1999-07-12
Abstract: A drilling direction control device, improvements in drilling direction control devices, methods for orienting a rotary drilling system, and methods for rotary drilling. The drilling direction control device includes a rotatable drilling shaft, a housing for rotatably supporting a length of the drilling shaft, and a deflection assembly contained within the housing for bending the drilling shaft between a first support location and a second support location. The deflection assembly includes an outer ring which is rotatably supported on a circular inner peripheral surface of the housing and which has a circular inner peripheral surface that is eccentric with respect to the housing. The deflection assembly also includes an inner ring which is rotatably supported on the circular inner peripheral surface of the outer ring and which has a circular inner peripheral surface which engages the drilling shaft and which is eccentric with respect to the circular inner peripheral surface of the outer ring. Methods for orienting a rotary drilling system involve communicating a desired orientation of the drilling string to a drilling direction control device and then actuating the drilling direction control device to deflect the drilling shaft to reflect the desired orientation of the drilling shaft. The desired orientation of the drilling shaft may be communicated directly to the drilling direction control device or to the drilling direction control device through a drilling string communication system.
Patent CA-2278000-A1 (CA)
Title: Quick-on filler neck cap
Inventor: GRIFFIN JEFFERY
IPC: B60K15/04
Filed: 1998-01-16
Abstract: A cap (12) is provided for a filler neck (14) having an open mouth (22) and two internal mounting flanges (38, 40) adjacent to the open mouth (22). Cap (12) comprises a handle (18), a body (16) coupled to handle (18) for rotation therewith, an annular seal (34) around body (16), first and second external position-locator lugs (78, 80) appended to body (16) and arranged to lie in spaced-apart relation to annular seal (34), and first and second spiral-shaped cap mounting members (86, 88) appended to body (16) to lie in a position between annular seal (34) and first and second external position-locator lugs (78, 80). The spiral-shaped cap mounting members (86, 88) are adapted to engage against the internal mounting flanges (38, 40) of the filler neck upon installation of body (16) in filler neck (14) to retain cap (12) in filler neck (14) and annular seal (34) in compression to establish a liquid fuel and vapor seal between cap (12) and filler neck (14).
Patent CA-2281862-A1 (CA)
Inventor: PASCAL ERICA
IPC: C12N5/10
Filed: 1998-02-27
Abstract: The present invention provides a method for hybrid seed production comprising producing a conditional female sterile plant comprising a female-preferential promoter operably linked to a coding sequence which encodes an enzyme which catalyzes the conversion of a protoxin to a toxin, interplanting the conditional female sterile plant with a male sterile plant, applying the protoxin to the conditional female sterile plant, and producing hybrid seed. Viable seed formation is prevented on the conditional female sterile plant as a result of the conversion of the protoxin to the toxin in the female reproductive structures, and pollen production is prevented on the male sterile plant, thus allowing interplanting of the two parents of the hybrid cross in order to provide more efficient pollen transfer. Also provided are expression cassettes useful in the invention, plants transformed with the expression cassette, and novel female-preferential promoters.
Patent CA-2282839-A1 (CA)
Inventor: FARIA GERARD
IPC: H04N7/24
Filed: 1999-09-17
Abstract: In a time-resetting device in a terrestrial digital transmission network of the type used by digital radio or television broadcasting, the time information of the digital signal is modified in the transmission site before the modulator in order to replace it by a time information that is computed on the basis of the UTC time given by a GPS receiver and that includes the transmission delay of the concerned site. The invention can be applied to terrestrial digital transmission networks for digital audio broadcasting (DAB) or digital video broadcasting (DVB-T).
Patent CA-2284149-A1 (CA)
Inventor: THOMPSON RICHARD L
IPC: C12Q1/68
Filed: 1998-03-17
Abstract: This invention is a hybrid probe in which the optical pathways and the optical sensors comprise elements located within a compact hybrid chip structure. The full optical system (1, 2, 3) of the hybrid probe is located at its tip. No fibers are required to bring the light to and from the tip of the probe. This is achieved in part by mounting one or more LED dice (1) on a substrate (9) at the probe tip. Appropriate connections are made to these dice which are powered from electronics in the handle of the probe.
Patent CA-2284965-A1 (CA)
Title: Inline solid state polymerization of pet flakes for manufacturing plastic strap
Inventor: ENRIQUEZ MANUEL C
IPC: C08J11/04
Filed: 1999-09-29
Abstract: A process for preparing a PET flake mixture for use in connection with the fabrication of high-performance plastic strapping comprises the steps of initially collecting post-consumer and non-post-consumer PET materials having an initially wide range of relatively low intrinsic viscosity (IV) values with a relatively low average intrinsic viscosity (IV) value and processing the same through solid state polymerization (SSP) so as to obtain a wide range of relatively high intrinsic viscosity (IV) values with a relatively high average intrinsic viscosity (IV) value. The initially collected materials are chopped into flakes and chunks and the chunks are flattened so as to render the remaining mixture comprised substantially entirely of flake materials or segments. This is advantageous because the flake segments, as opposed to the chunk segments, are able to be substantially increased in intrinsic viscosity (IV) values and within a relatively short period of time. The initially collected materials have intrinsic viscosity (IV) values which are within the range of 0.60 - 0.80 dl/g and as high as 0.90 dl/g and the diversity of such materials is underscored or emphasized by the fact that the difference in such intrinsic viscosity (IV) values of the initial or starting materials is at least, or greater than, 0.05 dl/g, is probably at least 0.10 dl/g and can be within the range of 0.10 - 0.30 dl/g.
Patent CA-2287022-A1 (CA)
Title: Methods and apparatus for wireless communication using orthogonal frequency division multiplexing
Inventor: MUJTABA SYED AON
IPC: H04J99/00
Filed: 1999-10-20
Abstract: Methods and apparatus for wireless communication in systems such as omni-beam and narrow-beam fixed wireless loop (FWL) systems. In a first technique in accordance with the invention, referred to as code division duplex (CDD) time-slotted CDMA, uplink and downlink portions of the system are separated using code division duplexing, while the users within a given cell are also separated using codes, e.g., using time-slotted CDMA. In a second technique in accordance with the invention, referred to as time division duplex (TDD) time-slotted CDMA, uplink and downlink portions of the system are separated using time division duplexing, e.g., time slots, while the users in a given cell are separated using codes, e.g., time-slotted CDMA. Both the CDD and TDD techniques may make use of an electronically-steered beam which is designed to provide simultaneous coverage within a given cell for two or more users separated by codes. In a third technique in accordance with the invention, referred to as orthogonal frequency division multiplexing (OFDM), uplink and downlink portions of the system are separated in frequency, while the users are, e.g., also separated in frequency.
Patent CA-2289268-A1 (CA)
Inventor: HESSE MICHAEL
IPC: G07F17/32
Filed: 1998-05-05
Abstract: La présente invention concerne un système de jeu intelligent (500) comprenant un moteur (510) de jeu, un moteur de simulation (506), et une unité d'évaluation statique (508). La machine à sous intelligente permet à un joueur de jouer au poker pour de l'argent, contre un ou plusieurs joueurs simulés, intelligents. Le moteur de simulation produit des actions pour le ou les joueur(s) simulés. L'unité d'évaluation statique (508) offre un autre niveau de jeu, dans lequel le joueur peut jouer contre des critères prédéterminés pour gagner. Selon un mode de réalisation de l'invention, le joueur joue contre un ou plusieurs joueurs concurrent(s) simulé(s). Selon un autre mode de réalisation, le joueur joue à la fois contre un ou plusieurs joueurs concurrent(s) simulé(s) et contre des critères prédéterminés.
Patent CA-2290990-A1 (CA)
Title: Radially expandable intraluminal stent and delivery catheter therefor
Inventor: SOLAR RONALD J
IPC: A61M25/01
Filed: 1998-06-19
Abstract: The present invention is a delivery catheter (10) for a radially expandable intraluminal stent (12). The delivery catheter comprises an elongate outer tube (14) defining proximal, distal ends, and a lumen (20) extending longitudinally therethrough. In addition to the outer tube the delivery catheter includes an elongate inner tube (24) defining proximal, distal ends, and a guide wire lumen (30) extending longitudinally therethrough. The inner tube is movably disposed within the lumen of the outer tube. The delivery catheter further includes a flexible deployment sleeve (40) having a first end attached to the distal end of the outer tube, and a second end attached to the inner tube at a location proximal to the distal end thereof. The pressurization of the lumen of the outer tube with a fluid causes fluid pressure to be exerted on the sleeve in a manner facilitating the movement, and the inner and outer tubes relative to each other such that a distal portion of the inner tube extending distally from the second end of the sleeve is deployed from the distal end of the outer tube.
Patent CA-2294955-A1 (CA)
Title: Transdermal or transmucosal drug delivery device
Inventor: NAKAMURA KATSUHIRO
IPC: A61N1/30
Filed: 1998-06-25
Abstract: A device for delivering drugs through the skin or mucosa, which is excellent in drug penetration and skin stimulation, and whose consumption of electric power is small. An output control circuit (4) of a current application pattern control device (1) causes a current to flow between an anode-side device (5) for iontophoresis and a cathode-side device (6) by a combination of pulse depolarization current application with either DC current application or pulse current application. The combination of the types of current application by the output control circuit (4) is determined based upon the presetting inputted from outside the current application pattern control device (1) or based on internal stored data.
Patent CA-2298394-A1 (CA)
Inventor: SKINNER COLIN W
IPC: G10K9/125
Filed: 2000-02-14
Abstract: An improved transducer arrangement for low frequency sonar projectors that convert electric signals to mechanically generated acoustic signals. In one embodiment the arrangement has both a convex flextensional transducer and a concave flextensional transducer. An open side of the convex transducer is attached to an open side of the concave transducer by an intermediate bulkhead which closes each of the attached open sides. An end plate is attached to another open side of the convex transducer and another end plate is attached to another open side of the concave transducer such that the end plates close the attached open sides. In another embodiment, transducer assembly has a convex transducer having end plates and a concave transducer having end plates. Either one of the endplates of the concave transducer is attached to one of the endplates of the convex transducer, or an endplate of the concave transducer is also an endplate of the concave transducer. There is also provided a transducer drive circuit including one of the transducer assemblies wherein the convex transducer is electrically connected in series with the concave transducer. Means are provided for positively direct current biasing the convex transducer or the concave transducer and oppositely negatively direct current biasing the concave transducer or the convex transducer. Further means apply an alternating current driving signal to each of the convex transducer and the concave transducer. This configuration provides an improvement over the prior art in reduced transducer size and weight by doing away with a large isolation capacitor from the drive circuitry.
Patent CA-2300643-A1 (CA)
Inventor: RICHTER BERND
IPC: C11D1/825
Filed: 2000-03-07
Abstract: The invention relates to shaped bodies containing builders, alkali sources, bleaching agents, enzymes and surfactants. Particularly high-performance detersive shaped bodies with high stability in storage, a good perfume profile and a defined solubility profile are obtained if more than 80% by weight of the total content of an active substance (I) containing a constituent from the group of surfactants is present in a region which makes up no more than 40% by volume of the shaped body.
Patent CA-2300653-A1 (CA)
Title: Enhanced application telephone network
Inventor: WILLIAMS L LLOYD
IPC: H04Q3/00
Filed: 2000-03-14
Abstract: An enhanced application switched telephone network and a method of completing calls using the network are described. In the enhanced application switched telephone network, every switching office is connected to at least one enhanced ISUP voice-grade trunk. A link set and a route set associated with the enhanced trunk route common channel signaling messages associated with calls directed to the enhanced trunk(s) to a call control node. The call control node is thereby enabled to exercise control over those calls. The advantages include point of origin call control, enhanced application service development, rapid service deployment and significantly more efficient use of PSTN facilities.
Patent CA-2305936-A1 (CA)
Inventor: MARTINS CARLOS
IPC: F28F21/06
Filed: 2000-04-14
Abstract: Un échangeur de chaleur, en particulier pour véhicule automobile, comprend un faisceau (10) formé uniquement de tubes souples (12) en matière plastique, ainsi que deux blocs d'extrémité (22, 24) joignant ces tubes. L'échangeur de chaleur comprend en outre au moins un espaceur (50) disposé en un endroit choisi entre les blocs d'extrémité (22, 24) et comportant des ouvertures de passage des tubes pour assurer le maintien des tubes (12) avec un pas ou espacement choisi.
Patent CA-2307477-A1 (CA)
Inventor: NORKUS JAMES
IPC: F16F1/44
Filed: 2000-05-03
Abstract: An improved shock isolating mount for securing a body part of a vehicle to a support is provided. The shock mount includes a two-part spool having: a spacer formed from an annular flange integral with a tube, the tube projecting through apertures in mating elastically resilient bodies and a mounting part of a vehicle body part disposed between them; and a thimble, formed from a flange integral with a tube designed such that the thimble tube can telescope into the spacer tube. The thimble tube is formed into a polygon shape at the tube shoulder adjacent the thimble flange and the spacer tube is formed in a matching polygon shape such that the thimble tube shoulder can mate with the spacer tube. The thimble tube has an enlarged end which is engaged by a plurality of inward protrusions mounted in the spacer tube to prevent the spacer and thimble assembly from accidental engagement. The thimble tube is internally threaded to engage a threaded fastener inserted through the support, through the spool tube, and into the thimble tube. Passing through the thimble flange surrounding the thimble tube are a plurality of perforations. Although the perforations preferably take the form of circular holes, they may be formed as elongated slots, curved elongated slots, or any of numerous other shapes, which extend through the thimble flange. The perforations are preferably equally spaced radially about the thimble tube.
Patent CA-2308487-A1 (CA)
Inventor: GRANBERG CHRISTER
IPC: H04Q3/00
Filed: 1998-10-20
Abstract: Basic mobile telephony services are provided to mobile communication units operating within home and visiting mobile communication networks. The home and visiting mobile communication networks each include one or more mobile switching nodes that direct calls to and from mobile communication units.  A home network database stores subscriber records for mobile communication units subscribing to basic telephony services from the home mobile communications network. The home network database also stores information relating to one or more network-specific services being offered in the home or the visiting network. At least some of the subscriber records in the home database include a flag indicating whether the mobile communications unit corresponding to that subscriber record is to receive the network-specific service. When a mobile unit registers or performs a location update procedure, the network-specific service information is transferred from that mobile's home network database to a node currently servicing that mobile communications unit if the flag is set in that mobile subscriber's database record. After receiving that network-specific service information for the mobile communications unit being served, the network-specific service is provided to the mobile communications unit when appropriate.
Patent CA-2312165-A1 (CA)
Title: Vehicle steering control system
Inventor: IKEGAYA MANABU
IPC: B62D1/28
Filed: 2000-06-22
Abstract: A vehicle steering control system for conducting a steering assistance control, in which it is determined whether the vehicle operator has the intention to drive the vehicle by himself. This is done by discriminating the intention using the vehicle lateral deviation, the steering torque and the steering torque change. When it is discriminated that the vehicle operator does not have the intention in two or more discriminations, it is finally determined that the vehicle operator does not have the intention and the vehicle operator is alerted and/or the steering assistance control is discontinued, thereby preventing the vehicle operator from depending on the steer assist torque control excessively.
Patent CA-2313348-A1 (CA)
Inventor: GAGNON MICHAEL L
IPC: A61K48/00
Filed: 1998-12-09
Abstract: The present invention relates to cDNA encoding a soluble neuropilin protein (sNP) which is isolated from neuropilin (NP) producing cells or is recombinantly engineered from NP-encoding DNA. NP-1 and NP-2 are preferred NPs but any neuropilin or VEGF receptor (VEGFR), where the constituents share at least about 85 % homology with either of the above VEGF165R/NP-1 and NP-2.  More preferably, such constituent shares at least 90 % homology. Still more preferably, each constituent shares at least 95 % homology.