baber/WOPTO huggingface dataset:
Patent CA-2248319-A1 (CA)
Inventor: AHR NICHOLAS ALBERT
IPC: A01N65/00
Filed: 1997-02-28
Abstract: The present invention provides a portable, disposable article for repelling insects. The article includes a fibrous substrate which can be impregnated with the insect repellent. In one embodiment, the fibrous substrate is disposed intermediate a porous cover and a barrier layer, and comprises fibers having external capillary channels. The porous cover can comprise an apertured plastic film having tapered apertures. The insect repellent can be contained in a breakable packet, such that when the breakable packet is broken, the insect repellent is directed trhough the fibrous substrate for release through the apertured film.
Patent CA-2252078-A1 (CA)
Inventor: GALLANT ROBERT
IPC: G06F7/72
Filed: 1998-10-28
Abstract: A method of computing a multiple k of a point P on an elliptic curve defined over a field in a processor which generates distinct power signatures for adding and doubling operations, the method comprising the steps of representing the number k as a binary vector of bits k i; forming an ordered pair of points P1 and P2, wherein the points P1 and P2, differ at most by P; and selecting each of the bits k i in sequence. Upon k i being a zero, a new set of points P1', P2' is computed by first doubling the first point P1 to generate the point P1' and produce a first power signature. The points P1 and P2 are added to generate the point P2' and produce a second power signature distinct from the first power signature. Upon k i being a new one, a new set of points P1', P2' is computed by first doubling the second point P2 to generate the point P2' and produce the first power signature. The points P1 and P2 are added to produce the point P1', and produce the second power signature. The doubles or adds are performed in the same order for each of the bits k I, and produce a consistent power signature waveform.
Patent CA-2252157-A1 (CA)
Title: Compressor housing
Inventor: MILLER JAMES I
IPC: F01C21/10
Filed: 1998-10-26
Abstract: A variable capacity, vane-type compressor has a cylinder block with an oval rotor chamber. A plurality of vanes mounted in slots on a rotor rotate inside the rotor chamber on a shaft that is concentric with the minor diameter of the rotor chamber. Valves discharge refrigerant gas from the rotor chamber. The front nose block is located on the front side of the cylinder block and contains a bore for the rotor shaft and a set of needle roller bearings which supports the forward end of the shaft. A circular O-ring groove with an O-ring is located on the rearward side of the front nose block at its perimeter for sealing between the front nose block and the forward side of the cylinder block. The cylinder block has internal, weight-reducing voids located outboard of the rotor chamber. The lower voids serve as an oil sump and supply high pressure lubricant to the undervane pressurization manifolds. Like the front nose block groove, the cylinder block has a circular groove machined on a rearward side. The cylinder block groove contains an O-ring for sealing against the rear side block. The rear side block has a bore for the shaft and a needle roller bearing which supports the rearward end of the shaft. A circular O-ring groove is machined on the rearward side of the rear side block and holds an O-ring for sealing between the rear side block and the rear head. A lubricant transmitting passage is located in the blocks. The passage leads from the intake chamber at the rear of the compressor to the bore at the front radial bearing. Each of the components has bolt ears with threaded bolts for securing the components together. The bolt ears are located in the formerly wasted space at the four corners providing the compressor with a rectangular external configuration.
Patent CA-2254336-A1 (CA)
Title: Fail-safe electric hydraulic actuator
Inventor: BERNARD STEVEN P
IPC: F15B15/08
Filed: 1998-11-18
Abstract: An electro-hydraulic valve actuator comprising an actuator casing; a piston/rack means in the casing having walls reciprocating linearly to effect linear movements, the reciprocating walls defining a center chamber therebetween and two outside chambers inside the casing; an output shaft in communication with the piston/rack means for driving a valve, the output shaft effecting rotational movements in response to the linear movements of the piston/rack means; resilient return means in each of the two outside chambers engaging the reciprocating walls of the piston/rack means and inner end walls of the casing, the resilient return means biasing the walls of the piston/rack means to a closed position; a pumping means; a primary internal flow path for transferring hydraulic fluid from the pumping means to a first output port and into the center chamber, the hydraulic fluid in the center chamber causing the piston/rack means to expand in the casing to transmit the linear movements to the output shaft; and a fail-safe solenoid valve system having a secondary internal flow path connecting to and extending from the primary internal flow path to a second outlet port opening into at least one of the outside chambers, and a normally closed solenoid valve in the secondary flow path preventing flow through the secondary internal flow path. Upon loss of power to the actuator, the fail-safe solenoid valve opens to thereby cause the resilient return means to force hydraulic fluid out of the center chamber, through the primary and secondary internal flow paths, into at least one of the outside chambers, so that the piston/rack means is returned to a closed position for rotating the output shaft to drive the valve.
Patent CA-2256128-A1 (CA)
Inventor: DAVIES STEPHEN WILLIAM
IPC: G06F19/00
Filed: 1998-12-29
Abstract: The recovery of the sequence of bases in a dideoxyribonucleic acid (DNA) molecule is important for both research and medical applications. The standard processing techniques are prone to error. This invention creates from the template a new set of molecules which introduce an error correcting code as might be used in data communications. After the usual processing associated with DNA sequencing, the code can be used to reduce the errors in the estimated sequence.
Patent CA-2256552-A1 (CA)
Title: Gaming machine with bonus payoff feature
Inventor: GOMEZ BENJAMIN T
IPC: G07F17/32
Filed: 1998-12-18
Abstract: A spinning reel slot machine which gives a multiplied payoff when certain conditions are fulfilled. Wins including a special symbol on the pay line are multiplied by an incremental multiplier when the machine is in a particular mode. A counter value is increased by one every time a second special symbol appears on the visible sections of the reels. Whenever the counter reaches a predetermined value, the counter is reset and the multiplier is increased. Whenever a multiplied payout occurs, the multiplier is reset to a minimum value.
Patent CA-2256780-A1 (CA)
Inventor: PENA DANIEL S
IPC: B65G57/11
Filed: 1998-12-21
Abstract: A compact product stacker is provided for simultaneously receiving, stacking and moving a three line series of flat-shaped products. The stacker utilizes product support paddle combinations which share common, pneumatically rotated, pivot rods. The product support paddle combinations are adjustable to a downward sloping orientation, allowing gravity to assist in moving the product from an upper conveyor to the top surface of the product support paddles, at low speeds. The product support paddle combinations and pivot rods are positioned to minimize the number of required parts, to allow the lines of product to be closer together, and to minimize the width and depth of the overall device. A product alignment feature is also provided which delays the downward movement of the paddles until all products have reached their proper positions on their respective product support paddle combinations.
Patent CA-2261679-A1 (CA)
Title: Silicone rubber-containing, afterglowing preparation, product provided therewith and use thereof
Inventor: BEELE JOHANNES ALFRED
IPC: C09K11/02
Filed: 1997-07-31
Abstract: A silicone rubber-containing, afterglowing preparation, which is characterized in that said silicone rubber is a curable silicone rubber and that the composition includes 0.1 - 10 per cent by weight of an afterglowing pigment. In a preferred embodiment, the silicone rubber is capable of being cured at a temperature of 5 - 170 °C, in particular by means of moisture or a peroxide compound, whereby the silicone rubber is transparent after curing.
Patent CA-2262050-A1 (CA)
Title: Steam-cooling type gas turbine
Inventor: CHIKAMI RINTARO
IPC: F02C7/16
Filed: 1999-02-16
Abstract: A steam-cooling gas turbine in which cooling steam is fed from a center portion of a rotating shaft and recovered through passages disposed at the outer side of the center portion with steam leaking through a seal portion from a feeding steam being effectively recovered. Feed steam (30) serving as coolant is supplied to a cavity (27) from a inner cylinder (10) and hence fed to moving blades (11, 12) through recesses (40) formed in a coupling portion (26) interposed between a final-stage disk (24) and a turbine shaft (1), steam feeding pipes (15) and steam feeding passages (11a, 12a). After cooling of the moving blades, steam (31) is recovered through steam recovering passages (11b, 12b), steam recovering pipes (16), radial steam-recovering passages (17), axial steam-recovering passages (18) and outlet openings (5a). In a portion of the turbine shaft (1) located adjacent to the coupling portion (26), temperature becomes higher when compared with the other portion. Thus, the coupling portion (26) is forced to hermetically close under thermal stress, whereby leakage of the feed steam (30) is prevented. Steam leaking through a seal portion constituted by stationary and rotatable seal fin assemblies (4a, 4b) can be effectively recovered. The inner cylinder (10) can move in the axial direction through cooperation of piston rings (43) and a centering piece (6) adapted for absorbing thermal stress induced in the inner cylinder (10). Upstream tip end portions of steam feeding pipes (15) and steam recovering pipes (16) are secured onto a side surface of the first-stage disk (21) through sleeves removably fitted thereto.
Patent CA-2262550-A1 (CA)
Inventor: FOERSTER SETH A
IPC: A61B19/00
Filed: 1997-07-31
Abstract: An implantable marking device is provided which is designed to percutaneously deliver permanent markers to desired tissue locations within a patient's body, even if the desired locations are lateraly disposed relative to the distal end of the delivery device, as is the case for conduit or cavity walls. This provides several advantages to the physician in diagnosis and management of tissue abnormalities, such as a means of localization of a tissue abnormality for follow-up surigical treatment, and a means of tissue abnormality site identification for purposes of ongoing diagnostic follow-up. In one preferred construction, a radiographic clip is configured in the form of a surgical staple. A disposable tissue marker applier, which comprises a flexible tube, pull wire, and squeeze handle, is employed to advance and deploy the clip to a desired tissue location. Either a flexible or a rigid introducer is also provided for providing access to the site to be marked.
Patent CA-2263390-A1 (CA)
Title: New composition for splicing photographic films
Inventor: PAUL SWARAJ
IPC: G03C11/14
Filed: 1999-02-25
Abstract: A glue for splicing photographic films that comprises: 0.5 to 4% nitrocellulose, 5 to 25% of alkanol, 5 to 20% lower alkyl acetate, 20 to 80% ketone, and 4 to 15% alkoxyalcohol.
Patent CA-2265988-A1 (CA)
Inventor: SCHEERHORN ALFRED
IPC: H04L9/32
Filed: 1997-09-17
Abstract: A method and/or system for transmitting sequences of signals/data from a transmitter to a receiver and for authenticating the sequences of signals/data may consist of a precalculation phase and of a communication phase in which the signals are transmitted together with the checking sums. In the precalculation phase, a pseudo-random sequence may be first generated by means of a cryptographic algorithm from a time-variable parameter and other initialization data.  Non-overlapping sections (z(1) of a sequence (z) having each m bits may be associated to signals (s(i)), wherein i = 1, 2, ... n, of a signal storage. Further non-overlapping m bit sections (t(i)) of the remaining sequence may be selected for coding numbers (1, 2, ... MAX). The transmitter may transmit the initialization information and the time-variable parameters to the receiver and the receiver may calculate the pseudo-random sequence (Z) and checks the received authentication token (T). The transmitter may accept the received signals as being authentic when the received authentication tokens match the calculated ones.
Patent CA-2266404-A1 (CA)
Inventor: CHASALOW FRED I
IPC: A61K31/675
Filed: 1997-09-17
Abstract: Disclosed herein are methods for increasing the bioavailability of pharmaceutical agents by conjugation to phospholipidis. Also disclosed are phospholipid-derivatized steroids, peptides, antibiotics and other biologically active agents and pharmaceutical formulations comprising these compounds.
Patent CA-2267910-A1 (CA)
Title: Telescoping system with multi-stage telescopic cylinder
Inventor: BARTHALOW HENRY D
IPC: F15B15/16
Filed: 1999-04-06
Abstract: The telescoping system includes a first and second fluid motor (2, 1). The first fluid motor (2) includes a first cylinder (16) and a second cylinder (8, 10) nested in the first cylinder (16). The second fluid motor (1) includes the second cylinder (8, 10) and a piston (4, 6) disposed in the second cylinder (8, 10). The second cylinder (8, 10) has a double barrel outer wall (52) forming a hydraulic fluid passageway. A hydraulic control system (48, 50, 44, 46, 60, 63, 64) in the telescoping system includes a single control valve (60), solenoid valves (44, 46), and holding valves (48, 50), and controls extension and retraction of the telescoping system.
Patent CA-2268232-A1 (CA)
Inventor: DE FRATIES KENT H
IPC: A01K97/11
Filed: 1999-04-06
Abstract: A fish hook setting apparatus which has a main support, a rod holding arm pivotally attached to the main support, a spring between the main support and an e:nd of the rod holding arm, a horizontal extension attached to the top end of the main support and a trigger apparatus at the outer end of the horizontal extension. The trigger apparatus consists of rotatable release plate attached to a support member, a line hook arm attached to the rotatable release plate, and a pivoting release arm attached to the opposite side of the cross member. In operation, a fishing rod, after the baited hook is casted, is placed in the rod holding arm.      The rod holding arm, holding the fishing rod, is pivoted to a set position where the pole extends between the release arm and the rotating release plate on the trigger apparatus. This action also applies bias to the spring. The release arm is pivoted downward over the fishing pole and aligned under the rotating release plate.      The rotating release plate is rotated over the release arm to a selected position. The fishing line is connected to the line hook.      When a fish pulls on the line, the line hook arm is pulled and the rotatable release plate rotates. As the rotatable plate rotated the release arm is freed and the rod holding arm flips upward along with the fishing pole therein. In this manner the fish hook is set. Once set, the combined spring action and pole action will play the fish until the fisherman returns to tend to the rig.
Patent CA-2270855-A1 (CA)
Inventor: DUBOIS CONSTANT
IPC: A61B90/60
Filed: 1999-05-05
Abstract: A system for supporting a user's arm, comprises an armrest. The armrest is suspended and supported from a horizontally movable structure comprising a vertically movable member through which the armrest is suspended, a counterbalancing return-force producing assembly connected to the vertically movable member to counterbalance at least in part the weight of the user's arm, and a movement-resisting assembly connected to the vertically movable member to resist to vertical movement of the vertically movable member. According to a preferred embodiment, the vertically movable member comprises a cable, the counterbalancing return-force producing assembly comprises a first, spring-loaded reel, and the movement-resisting assembly comprises a second reel on which turns of the cable are wound and provided with at least one lateral face, and at least one friction disk applied to the lateral face of the second reel to resist to vertical movement of the wire. The present invention is also concerned with a specific embodiment of the armrest.
Patent CA-2272883-A1 (CA)
Inventor: DAUTZENBERG JOSEPH HUBERTUS
IPC: G11B23/00
Filed: 1997-09-10
Abstract: Device for the removal of compact disks from the holder tray of the packing. The device has a push button which rests upon the mounting fingers of the holder tray. The device is provided with an eject spring which has two arms that reach between the mounting fingers. The push button is provided of spring supports which fit close to the spring when relaxed. The spring supports reach in between the mounting fingers of the holder tray. The eject spring is having the shape of a hexagonal with two arms and is manufactured from thin resilient metal.
Patent CA-2273093-A1 (CA)
Inventor: CASELLA VICTOR M
IPC: H04B7/06
Filed: 1997-11-18
Abstract: Granules are provided that are useful for oxidizing applications when the granules are dissolved in the presence of an active oxygen source. These granules include a salt having the structure of formula (I), wherein A, R1, R2, R3, Y and Z are as defined in the disclosure. The salt is carried by, coated with, or admixed with a solid particulate such as silica gel, silicic acid, silicate, aluminum oxide, clay, aluminum silicate, or mixtures thereof.
Patent CA-2273382-A1 (CA)
Title: Nozzle for use in a torch head of a plasma torch apparatus
Inventor: KELLER SILVANO
IPC: B23K10/00
Filed: 1999-05-28
Abstract: The nozzle is provided with a plurality of cooling channels running from an annular channel located in an inlet region of the nozzle through the nozzle in longitudinal direction up to an outlet region of the nozzle. The powder supply channels provided for the supply of coating material are led between the cooling channels.    A nozzle support member adapted for receiving the nozzle is provided with cooling ducts that are hydraulically connected to the cooling channels of the nozzle and constitute therewith a nozzle cooling circulation system. The advantages of this design can be seen in the facts that the nozzle is homogeneously and efficiently cooled up to its outlet end and that the danger of building-up molten deposits within the nozzle is substantially avoided.
Patent CA-2275870-A1 (CA)
Title: Foldable tote box
Inventor: CHU LAWRENCE H Y
IPC: B65D5/468
Filed: 1998-10-10
Abstract: A foldable tote box is formed by a one-piece die-cut scored board or corrugated material. The board includes a rectangular bottom panel (93) and pairs of side (27) and end edges (28). Each of a pair of sidewall panels (92) has a folding edge integrally connected to the side edge of the bottom panel along a first scored folding line (28), a top edge and a pair of end edges. Each pair of two filler beam panels (t 1, 12, 13) are connected to the end edges of one of the sidewall panels along second scored folding lines. Each filler beam panel is folded to form a hollow support beam. A pair of end wall panels (18) are connected to the end edges of the bottom panel along third scored folding lines. Each end wall panel includes an end wall section (17) and a flap section divided by double scoring lines. Locking members include locking pieces (56) and holes (45) on the end wall panels and latch openings (51) and tongues (68) on the sidewall panels to lock the flap sections to the sidewall panels such that the flap section of each end wall panel holds two support beams formed against the end wall section of the end wall panel.
Patent CA-2279138-A1 (CA)
Title: Non-uniform memory access (numa) data processing system that decreases latency by expediting rerun requests
Inventor: GLASCO DAVID BRIAN
IPC: G06F12/08
Filed: 1999-07-29
Abstract: A non-uniform memory access (NUMA) computer system includes a node interconnect and a plurality of processing nodes that each contain at least one processor, a local interconnect, a local system memory, and a node controller coupled to both a respective local interconnect and the node interconnect. According to the method of the present invention, a communication transaction is transmitted on the node interconnect from a local processing node to a remote processing node. In response to receipt of the communication transaction by the remote processing node, a response including a coherency response field is transmitted on the node interconnect from the remote processing node to the local processing node. In response to receipt of the response at the local processing node, a request is issued on the local interconnect of the local processing node concurrently with a determination of a coherency response indicated by the coherency response field.
Patent CA-2281559-A1 (CA)
Title: Method and catalyst for producing polyolefins of medium to ultra-high molecular weight
Inventor: FRITZSCHE GERD
IPC: C08F10/00
Filed: 1998-02-13
Abstract: The invention relates to a method for producing polyolefins of medium to ultra-high molecular weight by homo- or copolymerization of olefins, specifically ethylene, with other alpha-olefins in the presence of a metallocene-type mixed Ziegler-Natta-catalyst placed onto an organic polymer material for producing shaped bodies, for example by extrusion, injection moulding, film blowing, sinter pressing or ram extrusion. According to the invention the catalyst contains as organic polymer material a partly chloromethylated styrene-divinyl benzene copolymer, a complex compound placed onto same containing Mg, Al and transition metals of the fourth subgroup, as well as reaction products of the latter with other organic compounds and transition metals of the fourth subgroup.
Patent CA-2284251-A1 (CA)
Title: Compounds and methods for the diagnosis and treatment of ehrlichia infection
Inventor: HOUGHTON RAYMOND
IPC: C07K19/00
Filed: 1998-03-23
Abstract: Compounds and methods for the diagnosis and treatment of Ehrlichia infection, in particular human granulocytic ehrlichiosis, are disclosed. The compounds provided include polypeptides that contain at least one antigenic portion of an Ehrlichia antigen and DNA sequences encoding such polypeptides. Pharmaceutical compositions and vaccines comprising such polypeptides or DNA sequences are also provided. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Ehrlichia infection in patients and biological samples. Antibodies directed against such polypeptides are also provided.
Patent CA-2285754-A1 (CA)
Title: Public access computer terminal system and method for collecting customer information
Inventor: JONES MICHAEL RAWLES
IPC: H04L12/16
Filed: 1999-10-08
Abstract: A public access computer terminal system having at least a public access computer terminal is disclosed. The computer terminal is provided for interfacing with customers at a venue. The venue has one or more checkouts. Using the computer terminal, the system obtains customer identification information, and provides the customers with vouchers indicating promotional offers. The vouchers are presented at a checkout. The system obtains customer information based on information regarding issuance and redemption of vouchers. In a preferred embodiment, the system is capable of receiving e-mail from the Internet for customers. The computer terminal presents customers e-mail received from the Internet together with system messages.