baber/WOPTO huggingface dataset:
Patent CA-2236060-A1 (CA)
Inventor: NEAL DANNY MARVIN
IPC: G06F13/00
Filed: 1998-04-28
Abstract: A peripheral component interconnect (PCI) bus is adapted for differential signalling. Two signal lines are providing for each bus signal and information is encoded as either a polarity or a magnitude of a voltage difference between the two signal lines. Enhanced PCI compliant devices include drivers and receivers capable of differential signalling. The resulting bus architecture supports clocking data on both edges as well as source synchronous clocking. The enhanced PCI bus architecture also supports data blocking, pacing, split transactions, and synchronization commands.
Patent CA-2237799-A1 (CA)
Title: Recoil system for the butt stock of a firearm
Inventor: CRAWFORD WILLARD H
IPC: F41C23/06
Filed: 1998-05-15
Abstract: A recoil system for the butt stock of a firearm having a recoil suppressor assembly whose front end is mounted in the cavity in the rear end of the butt stock. The piston ram of the recoil suppressor assembly in its-static position extends rearwardly into a bore hole cavity of an elongated recoil housing. When the firearm is shot, the elongated body portion of the recoil suppressor assembly and its transversely extending mounting flange portion instantaneously travel rearwardly into the bore hole cavity with the bore hole of the body housing reciprocally traveling over the piston ram. An extension coil spring whose front end is secured to the front end of the body portion and whose rear end is secured to a cam assembly returns the elongated body portion to its static position once the recoil of the firearm has been suppressed.
Patent CA-2239461-A1 (CA)
Inventor: KELM-KL GER RONALD
IPC: G01M17/02
Filed: 1998-06-03
Abstract: In the tire examination method before and after an alteration in the tire pressure an interferogram is produced of the tire surface using coherent radiation and the interferogram is converted into a modulo 2.pi. image, which for its part is processed to obtain a gray value image and in the case of which from a comparison of the gray value images information concerning any defects present in the tire is obtained. For testing a tire the wheel, which bears such tire to be tested, is mounted on a wheel balancing machine. A test head, arranged on the wheel balancing machine, is moved toward the tire to be at a predetermined test distance therefrom for producing such interferogram. At a first test segment of the tire examination for defects is performed. The wheel is incrementally rotated by the wheel balancing machine by an amount equal to the size of a test segment and the last mentioned steps are repeated until the entire tire has been examined. The tire testing apparatus possesses a wheel balancing machine on which the wheel mounting the tire to be tested, may be mounted, a positioning means       for a test head with which the test head for producing the interferograms is to be advanced toward the tire as far as a predetermined test distance from the tire and a control means for the wheel balancing machine in order to incrementally turn the wheel by an amount corresponding to a test segment, when the testing of the preceding test segment is concluded.
Patent CA-2240945-A1 (CA)
Title: Meltblown polyethylene fabrics and processes of making same
Inventor: GESSNER SCOTT L
IPC: D04H13/00
Filed: 1996-12-18
Abstract: A nonwoven web (12) of meltblown microfibers formed of a composition of polyethylene and at least one component added to provide processing stability to the polyethylene component. The meltblown web (12) can be produced at high polymer throughputs and exhibits good barrier properties. The meltblown web (12) is useful as a component of a composite fabric (10), which can be used for barrier application in medical and industrial applications.
Patent CA-2241135-A1 (CA)
Inventor: MANN JEFFREY SCOTT
IPC: F23K3/02
Filed: 1996-10-28
Abstract: A steam generating system (10) includes a nozzle for pulverized coal and air which includes an elongated generally cylindrical body (30) having a nozzle at one axial portion thereof. The apparatus also includes a nozzle tip (34) that is generally sleeve shaped and dimensioned to overlap an extremity of the body (30). The tip (34) is mounted for pivotal movement about the extremity of the body (30) and the nozzle tip (34) includes first and second surfaces (58, 59) dimensioned and configured for receiving therebetween all flow from the nozzle body (30). The apparatus also includes a seal plate (50) that is also generally sleeve shaped and dimensioned and configured to provide sealing between the extremity and the nozzle tip (34). The seal plate (50) is mounted for pivotal movement about the extremity of the body (30) and is dimensioned and configured to have third and fourth surfaces (52, 54) disposed respectively in closely spaced relationship to the first and second surfaces (58, 59) throughout all possible pivotal positions of the seal plate (50) and the nozzle tip (34). This closely spaced relationship defines an elongated slot for passage of air. The seal plate (50) includes a stop (56) to limit relative pivotal motion between the nozzle tip (34) and the seal plate (50).  In some forms of the invention the first and second surfaces (58, 59) are planar surfaces. The third and fourth surfaces (52, 54) may be cylindrical sections. The stop (56) may include at least one upstanding member carried on the seal plate (50). The seal plate (50) may include first and second planar opposed sides joined by the third and fourth surfaces (52, 54). In some forms of the invention the third and fourth surfaces (52, 54) have concave parts and the concave parts are disposed in opposed relationship. The stop (56) may be a part of the first and second planar opposed sides and may include at least one ear on each of the first and second sides and in some cases also include a second ear on each of the first and second sides. All of the ears may be generally planar and each of the ears may be coplanar with one of the sides.
Patent CA-2241261-A1 (CA)
Inventor: KLAUCK WOLFGANG
IPC: C04B38/02
Filed: 1996-12-11
Abstract: L'invention concerne une composition pour produire du plâtre léger qui contient en tant que constituants principaux des particules de plâtre sous forme d'anhydride et/ou d'un semi-hydrate, ainsi qu'au moins un agent moussant. Cette composition se caractérise en ce que l'agent moussant génère du gaz après un délai de 1 minute à 24 heures et représente 0,1 à 50 % en poids du mélange sec total. L'invention concerne également l'utilisation de cette composition pour produire de la mousse plastique moulée sur place et des corps moulés en plâtre de faible densité.
Patent CA-2242009-A1 (CA)
Title: Catalyst system based on monoazadiene metal complexes
Inventor: BECKE SIGURD
IPC: C08F10/00
Filed: 1998-06-29
Abstract: The present invention relates to a catalyst system based on monoazadiene metal complexes of the formula (see fig. I), and a co-catalyst suitable for activating the metal complex, and to the use of the catalyst system for the polymerization of unsaturated compounds, especially for the polymerization and copolymerization of olefins and/or dienes.   The novel catalyst system is characterised in particular by its ease of access, its lack of sensitivity to external influences and its ease of handling.
Patent CA-2242604-A1 (CA)
Inventor: SZALAJSKI DAVID
IPC: H04W48/12
Filed: 1998-07-16
Abstract: The invention relates to a BCCH carrier emitted by a base station of a cellular digital radiocommunication system. The BCCH carrier is time-segmented into frames, the frames being divided into a determined number N IT of time intervals (IT0 to IT8). The BCCH carrier supports notably a BCCH physical channel, itself carrying at least one BCCH logical channel transmitting BCCH information (I). Each mobile station, for which the base station emitting the BCCH carrier is a neighbouring base station, has at least one listening window in each of at least N T consecutive frames, N T ~ 1, i.e., at least N F consecutive listening windows, each allowing the mobile station concerned to receive at least N E time intervals of the BCCH carrier, N E ~ 1. According to the invention, the BCCH carrier supports at least N R BCCH physical channels transmitted at constant power and made up of the recurrence in each frame of N R BCCH time intervals (IT0, IT3, IT6). The or each N R BCCH physical channel carries at least the BCCH logical channel, each BCCH time interval containing BCCH information at least once over N T consecutive frames. The number and spacing of the N R BCCH time intervals are such that the BCCH information is received entirely in the or one of the at least N F consecutive listening windows of each mobile station. The time intervals other than BCCH time intervals are emitted at a power level that can be controlled.
Patent CA-2244178-A1 (CA)
Title: Method of heating a specimen carrier
Inventor: GUNTER IAN ALAN
IPC: B01L7/00
Filed: 1997-01-23
Abstract: A method and apparatus for heating specimens in wells of a metallic specimen carrier. The specimen carrier is heated by applying resistive heating directly to the carrier. An AC source and transformer may be used where the specimen carrier is in series with a single turn secondary winding of the transformer.
Patent CA-2244258-A1 (CA)
Inventor: SEILER STEVEN J
IPC: F01P7/14
Filed: 1997-01-24
Abstract: A locomotive cooling system (2) including a conduit (4) adapted to conduct therethrough a flow of coolant; a power source providing a nominal voltage; and a valve assembly (10) including a valve body (14) defining a drain passage (30) communicable with the conduit (4), a plunger (42) movable between a closed position in which the conduit (4) and the drain passage (30) are separated and an open position in which the conduit (4) and the drain passage (30) are in fluid communication. A control assembly (50) moves the plunger (42) between the closed position and the open position. The control assembly (50), including a temperature sensor for detecting the coolant temperature, and connected to the power source. The control assembly (50) opening the valve assembly (10) when the system (2) is either at a first threshold coolant temperature when the power source voltage is nominal or a second threshold coolant temperature when the power source voltage is low.
Patent CA-2244448-A1 (CA)
Inventor: LIN PEI-TSUNG
IPC: G02C1/04
Filed: 1998-07-31
Abstract: A pair of glasses including two outer butts, two inner; butts, a bridge and two movable rim assemblies. Each outer butt has two stopper plates each being formed with a longitudinal channel in which the movable rim assembly is inserted. Each inner butt also has a longitudinal channel in which the movable rim assembly is inserted. By means of the longitudinal channels of the stopper plates of the outer butts and the longitudinal channels of the inner butts, the upper or lower rims of the movable rim assemblies can be fixed with the lenses. Therefore, the glasses can be changed between full rim pattern, upper half rim pattern, lower half rim pattern and rimless pattern.
Patent CA-2245734-A1 (CA)
Inventor: DUTT WILLIAM H
IPC: D21F3/02
Filed: 1997-08-22
Abstract: A resin-impregnated endless belt for a long nip press or calender of the shoe type has a base fabric in the form of a multilayer braided structure wherein each of the constituent layers are connected to those adjacent thereto by at least one interlocking yam to inhibit interlayer delamination. The base fabric is in the form of an endless loop, at least the inner surface of which is coated with a polymeric resin material, such as polyurethane. The polymeric resin material impregnates the structure of the base fabric, rendering it impermeable to oil and water.
Patent CA-2246866-A1 (CA)
Title: Wireless local area network with enhanced carrier sense provision
Inventor: MUD RIENK
IPC: H04B7/005
Filed: 1998-09-09
Abstract: A method and system of operating a wireless local area network station adapted to transmit and receive a signal within a communication cell. The method includes the steps of establishing a carrier detect threshold level, establishing a defer threshold level, and transmitting a signal when the signal level detected by the network station is above the defer threshold level. Additionally, the method further includes the step of receiving a signal transmission intended for the network station when the power of the received signal transmission is above the carrier detect threshold level.
Patent CA-2246970-A1 (CA)
Title: System and method for detecting nozzle and electrode wear
Inventor: OAKLEY THOMAS FRANKLIN
IPC: B23K10/00
Filed: 1998-09-14
Abstract: A system and method for detecting nozzle and electrode wear of plasma arc torches in which the average change in the stand-off between the electrode or the nozzle assembly of the plasma arc torch and a workpiece is monitored, and corrective measures are taken once the average change in the stand-off of the electrode and nozzle assembly exceeds a predetermined value.  The corrective measures may include changing the arc voltage of the plasma arc torch, modifying the speed at which the plasma arc torch travels, modifying the average current of the power supply of the plasma arc torch, or the flow rate of the plasma supply gases or cut water of the plasma arc torch.  The number of corrections is monitored so that after a predetermined number of such corrections, the system and method notifies an operator or the plasma arc torch itself that the electrode or surrounding nozzle requires replacement.
Patent CA-2248495-A1 (CA)
Inventor: BRANHAM TONY J
IPC: A61H9/00
Filed: 1998-09-28
Abstract: A hydro-massage pillow assembly (10) including a pillow assembly (12) in combination with a water source (18) and a control assembly (14) for use with spa tubs (16) and the like. The pillow assembly (12) includes interchangeable membrane assemblies (44, 46), that are made of material with different permeability. The cushioned, flexible pillow (34) conforms to the shape of the tub (16) to enhance appearance and comfort. A remote control head (26) permits users to conveniently control the temperature, pressure, and other desired control parameters of the massaging effect produced by the pressurized water in the pillow assembly (12).
Patent CA-2249949-A1 (CA)
Title: Battery charge level detecting device
Inventor: SHOJI YOSHIMI
IPC: G01R31/36
Filed: 1998-10-09
Abstract: In the area of the charge level of 20 ~ 80% where the charge level of a battery does not appear in the terminal voltage of the battery, the battery ECU estimates charge level by integrating the currents of the charge and discharge of the battery.  When the engine ECU detects that the ignition key is turned on, the motor generators are driven by the engine, and the generated electric power is accumulated in the battery.  When the area where the charge level appears in the terminal voltage, is reached, the calculation of the charge level is performed from the current and voltage at that time.  When this charge level has reached 80%, the calibration of said estimated charge level is performed by this value.          Furthermore,  it is also possible for this calibration to be prohibited when a heavy current is flowing and the error may become large in the calculation of the charge level.  By the above mentioned methods, the charge level of a battery can accurately be detected.
Patent CA-2251113-A1 (CA)
Title: Automatic milking process and device
Inventor: LAUB-MAIER MARIA
IPC: A01J5/007
Filed: 1997-04-10
Abstract: In the case of a method and of a device for automatically extracting milk, long milk hoses having a large internal diameter are used, which permit an optimum mode of operation in combination with the highest possible flows of milk. In addition, the flow cross-section of the milk discharge sys-tem of the milking unit is controlled during the relief cy-cle at a predetermined point in dependence upon the pressure prevailing below the teat or in dependence upon the milk to be discharged. In this way, cows having different flows of milk can be milked in the best possible manner with the aid of only one kind of long milk hose.
Patent CA-2253585-A1 (CA)
Title: Cryptographic file labeling system for supporting secured access by multiple users
Inventor: GRAWROCK DAVID
IPC: G06F21/00
Filed: 1997-04-14
Abstract: A system is disclosed for automatically distributing secured versions (*Sys_D_key*) of a file decryption key (Sys_D_key) to a plurality of file users by way of the file's security label. The label is defined to contain a plurality of Access-Control-Entries Records (ACER's) where each ACER includes a respective secured version (*Sys_D_key*) of the file decryption key. Each such secured version (*Sys_D_key*) is decipherable by a respective ACER private key. Each ACER may include respective other data such as: (a) ACER-unique identifying data for uniquely identifiying the ACER or an associated user; (b) decryption algorithm identifying data for identifying the decryption process to be used to decrypt the encrypted *DATA* portion of the file; and (c) special handling code for specifying special handling for the code-containing ACER. The label is preferably covered by a digital signature but includes an extension buffer that is not covered by the digital signature. Users who wish to have an ACER of their own added to the label may submit add-on requests by writing to the extension buffer.
Patent CA-2254582-A1 (CA)
Title: An improved network and method for atm network operations
Inventor: SAMUDRA PRADEEP D
IPC: H04L29/06
Filed: 1998-11-26
Abstract: An asynchronous transfer mode (ATM) network and method for operating an ATM network which provides for virtual channel merging of individual user data cells. The ATM network comprises a multiplicity of source stations, wherein each one of the source stations is identified by a source identifier (SID) and is connected to at least one non-merged virtual channel (VC); a first ATM switch having a first input, a second input, and an output, such that the first input is connected to one of the non-merged virtual channels (VCs), the second input is connected to a different one of the non-merged VCs) and the output is connected to a merged VC; and at least one destination station is connected to the merged VC, which maintains a SID allocation table containing each one of the source identifiers (SIDs).
Patent CA-2255940-A1 (CA)
Title: Coated products and use thereof in oil fields
Inventor: RAVENSCROFT PAUL DEREK
IPC: C09K8/536
Filed: 1997-05-29
Abstract: An oil field production chemical, especially a scale inhibitor, is in the form of particles thereof carrying a coating e.g. of a dispersing agent. The coating may be polymeric such as an oligomeric polyacid polyester, a polymeric alkoxylated alcohol or a fatty acid polyamine condensate or it may also be a surfactant and may be used in the form of a suspension in an inert oil, such as diesel oil or kerosene which may be injected into a subterranean formation to inhibit the formation of deposits, e.g. scale in oil wells over a longer period than compounds free of the coating.
Patent CA-2256006-A1 (CA)
Inventor: NAKANO TAKAYUKI
IPC: H04J13/00
Filed: 1998-12-14
Abstract: Moyen de désétalement 10 désétalant un signal pilote inclus dans un premier signal reçu 1. Du désétalement de signal par le moyen de désétalement 10, un moyen de détermination de puissance 15 détermine la puissance du signal pilote reçu. Un moyen de commande dintégration 16 détermine lintervalle dintégration utilisé par un moyen dintégration 13, à partir de la puissance du signal pilote reçu déterminée par le moyen de détermination de puissance 15. Les différences de puissance détectées par un moyen de détection de différence de puissance 12 sont additionnées par le moyen dintégration 13 sur la période décidée par le moyen de commande dintégration 16. Le temps dintégration utilisé par le moyen dintégration 13 est rendu modifiable selon lenvironnement de réception. En conséquence, dans un environnement de réception supérieur, la charge imposée au moyen dintégration 13 est réduite lorsque le moyen dintégration 13 effectue les opérations de traitement. Par conséquent, il est possible de réaliser un système de détection de phase pour récepteur AMCR supérieur qui dissipe une quantité délectricité plus faible.
Patent CA-2256443-A1 (CA)
Title: Air treatment system
Inventor: O'CONNOR JOHN F JR
IPC: F24F8/158
Filed: 1997-06-03
Abstract: An air treatment system having a relatively large capacity yet a relatively small footprint and low sound level. The air treatment system includes a housing defining adjacent vertically extending inlet and outlet chambers.  A blower is mounted within the inlet chamber to move air through the system. A generally planar filter is contained within the outlet chamber and is spaced apart from the rear wall of the housing to define a plenum. The rear wall of the housing is curved so that the plenum is tapered to provide uniform pressure over the face of the filter.      The system is adapted to rest upon the floor or mount either vertically or horizontal to a wall. Additionally, the system includes a control mechanism that allows the system to run at full speed for a predetermined period of time and then automatically return to its previous speed level.
Patent CA-2257869-A1 (CA)
Title: Mixing and dispensing device
Inventor: KRAMER HANS
IPC: B05C17/01
Filed: 1997-06-09
Abstract: A mixing device for fluids, comprising a column within which there is an internal core, a space between the column and core defining a channel for the flow of the fluids, the surface of the column facing the core having fluid guide elements which impart helical flow in a first twist direction upon a fluid flowing along the channel, the surface of the core having fluid guide elements thereon which impart helical flow in an opposite twist direction upon the fluid. On part of the channel, the helical flow imparted to the fluid is predominantly in the twist direction of the elements on the core and on a part of the channel upstream or downstream of this part the helical flow imparted to the fluid is predominantly in the twist direction of the elements on the column.
Patent CA-2262851-A1 (CA)
Title: Exhaust hood
Inventor: OTENBAKER JAMES T
IPC: F24C15/20
Filed: 1999-03-05
Abstract: An exhaust hood having an inverted V-shaped interior, the walls comprising the inverted V including grease filters and the apex of the inverted V lying adjacent to an exhaust duct to be placed in communication with an exhaust fan.  The interior of the hood thus being shaped like an inverted funnel, rising gases and entrained contaminants are directed to the grease filters and thence to the exhaust duct.
Patent CA-2262915-A1 (CA)
Title: Electrical wiring system
Inventor: CANDELORO SALVATORE
IPC: H01R24/12
Filed: 1997-08-06
Abstract: An electrical wiring system (20) for conducting electricity through an insulated casing is described. The electrical wiring system (20) includes a substantially rigid conducting line (22) having an insulating casing (26) and a plurality of electrical conducting cells (36) embedded in the insulatin casing (26), each conducting cell (36) comprising a metal conductor (47), and a substantially rigid connector for connecting to the conducting line, the connector (24) comprising an insulating sheath (60) and a plurality of insulated electrical conducting metal through-prongs (68) recessed within the insulating sheath (60). The insulating casing (26) and the connector (24) plug-in to each other without hardwiring. The electrical wiring system includes additional plug-in components such as electrical receptacle boxes and switches, corner adapters and power adapters which extend the system without hardwiring.