baber/WOPTO huggingface dataset:
Patent CA-2232389-A1 (CA)
Title: Cross-linked polyolefinic foams and process for their production
Inventor: WALTON KIM L
IPC: B29C44/08
Filed: 1996-09-12
Abstract: Foamed articles having enhanced tensile, elastic recovery, and creep and fatigue resistance properties are prepared using a dual cure system. This system comprises a heat or radiation-activated first stage cure (which follows or coincides with foaming) followed by a moisture-activated second stage cure.  Heat-activated curing systems include peroxide, sulfur, etc., and radiation-activated cure systems include electron beam, gamma-ray, etc. Moisture-activated systems include silane, and sulfonyl chloride.
Patent CA-2233489-A1 (CA)
Inventor: SANDBERG RUNE
IPC: C07C217/20
Filed: 1996-10-23
Abstract: There is provided compounds of formula (I), wherein R1 represents C3-5 alkyl; and R2 and R3 independently represent C1-3 alkyl; provided that when R2 and R3 both represent ethyl, then R1 does not represent n-butyl, i-butyl or n-pentyl; or a pharmaceutically acceptable salt thereof, which are useful as anaesthetics, in particular local anaesthetics and especially topically applied local anaesthetics.
Patent CA-2233700-A1 (CA)
Inventor: DEITZ RONALD E
IPC: F03B11/00
Filed: 1998-04-01
Abstract: A system for controlling a hydroelectric power production facility includes sensors for detecting the presence of fish adjacent to the facility. A controller linked to the sensors controls the orientation of control surfaces associated with a turbine/generator set to enhance the survivability of fish entrained into the facility when fish are detected to be present. The system may be adapted to control fish bypass and spillway structures within the facility to further enhance the survivability of fish populations. The system balances fish survivability with other parameters related to the operation of the facility, optimizing power production levels once estimates of fish survivability meet targets or optimum levels. The system may be adapted to coordinate control of several facilities along a water system to permit implementation of an overall water, fish and power management plan.
Patent CA-2233900-A1 (CA)
Title: Method and apparatus for coating a moving paper or cardboard web
Inventor: KOSKINEN JUKKA
IPC: B05D7/00
Filed: 1996-10-07
Abstract: The invention relates to a method of coating a moving web of paper or paperboard. In the method, the web to be coated is passed to a coater station, wherein a coat layer is applied to at least one surface of the web, and the web is dried at least to some degree and passed to the next treatment step. The coat is applied by spraying the coating mix on the web surface by means of high-pressure spraying nozzles, whereby the pattern width cowered by a single nozzle is essentially narrower than the cross-machine width of the web being coated.
Patent CA-2237015-A1 (CA)
Inventor: HUNG JAMES MANG C
IPC: B65H35/07
Filed: 1998-06-11
Abstract: The invention is directed to a tape dispenser which comprises a main body of a size capable of being gripped by a hand of a user, the body having a dispensing end, means for pivotally supporting a roll of tape in the body and for permitting the roll of tape to be rotated about an axis, a guiding mechanism disposed at the dispensing end of the body for guiding a free end of the displaced tape onto a surface including means to retain the free end of the tape away from the roll, and a cutting unit mounted adjacent the guiding mechanism for cutting the tape at the dispensing end of the body.
Patent CA-2237623-A1 (CA)
Title: Load sharing group of service control points connected to a mediation point for traffic management control
Inventor: MOHARRAM OMAYMA EL-SAYED
IPC: H04M3/22
Filed: 1997-10-08
Abstract: In the Intelligent Networks environment, where multiple Service Providers and multi-Vendor equipment are involved in new service offering, the risk of overloading the network elements are real and managing the traffic is a challenge. Network traffic overloads could result from equipment failures, major equipment outages, or widespread loads above engineered levels. To solve the problem of network traffic overload, a Mediation Point (MP) is connected to a group of service control points (SCP). The MP includes control feature to balance the load and manage the overload controls for the multiple SCPs that are deployed in load sharing mode in the network.
Patent CA-2239389-A1 (CA)
Inventor: SAVIC BRATISLAV
IPC: H02G9/08
Filed: 1998-07-08
Abstract: The existing Power Transmission Lines consist of cables suspended from the supporting Steel Towers, crosse the fields and rivers from the power source to the consumers. This aerial conception is exposed to the climatic effects: rain, snow temperature changes ,wind, lightning and in winter ice accumulation adding a considerable weight, causing the cables breakdowns, followed by towers breakdowns. The consequences are very costly and are followed by power privation at the time when the power is mostly needed. My invention is the simple installation with an increased number of conductors, located in the space below the New conception of reinforced concrete "Tunnel type" construction for Highways, Roads and Streets, far away from any climatic, temperature, lightning or any other factors so destructive to the existing Power Transmission Lines. The Power Transmission will be installed in the protective space where the conductors are free of any kind of stresses and energy losses and at the fractional cost of the existing installation. The access is easy and the undarground service road between the Highway's footings will allow the inspection crew to travel on the electric cart and make very long inspections in a short period of time . As a costlier alternative, the Power Transmission Line could be installed in a large concrete pipe, placed in the excavated trench and backfilled.
Patent CA-2240536-A1 (CA)
Inventor: LISS THEODOR ARTHUR
IPC: C07D487/04
Filed: 1996-12-17
Abstract: Fluorinated imides useful for imparting repellency of low surface tension fluids to thermoplastic polymers of formulae (A), (B), (C), (D) and (E) wherein R1 is F(CF2)x-(CH2)m, or F(CF2)xSO2N(R5)(CH2)p wherein x is from about 4 to about 20, m is from about 2 to about 6, p is from 1 to about 12, and R5 is an alkyl radical of from 1 to about 4 carbons; R2 is a linear, branched or cyclic alkylene or poly(oxyalkylene) hydrocarbon group having from about 2 to about 15 carbons; R3 is selected from the group consisting of F(CF2)x-(CH2)m, F(CF2)x-(CH2)m-OC(O)-(CH2)n, and F(CF2)xSO2N(R5)(CH2)pOC(O)(CH2)n wherein x is from about 4 to about 20, m is from about 2 to about 6, n is from about 2 to about 12, p is from 1 to about 12, and R5 is an alkyl radical of from 1 to about 4 carbons; R4 is an alkyl or alkenyl group of from about 4 to about 20 carbons, and R6 is a linear or branched alkyl having from about 4 to about 20 carbons.
Patent CA-2241526-A1 (CA)
Title: Fuze for a spin-stabilised projectile
Inventor: ROOSMANN KARLHEINZ
IPC: F42C9/14
Filed: 1998-06-24
Abstract: The present invention relates to a fuze for a spin-stabilized projectile with a housing (2) within which there is a detonator carrier (9) that can pivot from a safety position into a firing position and which is secured in its safety position by a locking bolt (6). In order to make it possible to integrate a self-destruct unit into the fuze in a simple and cost-effective manner, the present invention proposes that the self-destruct unit (15) be arranged in the locking bolt (6) that is required to fix the detonator carrier (9) in its safety position, so that the self-destruct unit (15) is activated when the locking bolt (6) is moved from its starting position into an end position relative to the fuze housing by the inertial force that is generated when the projectile is fired, and then releases the detonator carrier (9).
Patent CA-2244998-A1 (CA)
Inventor: KNIZHNERMAN LEONID
IPC: G01V3/38
Filed: 1997-12-04
Abstract: An improved method, apparatus and article of manufacture are disclosed for modelling the response of induction logging and other electromagnetic tools to subsurface formations. The improvement of the computer-implemented method is determined by an improved 3D solution of the 3D Maxwell equations, including the following steps: (i) formulating a set of frequency-domain Maxwell equations, including a Maxwell operator; (ii) generating a Krylov subspace from inverse powers of the Maxwell operator, and (iii) repeating (ii) as needed to achieve convergence of a frequency domain solution.
Patent CA-2245077-A1 (CA)
Title: Auxiliary contact operator for electrical switching apparatus
Inventor: KREVOKUCH ROBERT N
IPC: H01H9/00
Filed: 1998-08-14
Abstract: An auxiliary switch operator for a circuit breaker operates auxiliary contacts between open and closed positions. The auxiliary switch operator includes a hub which is biased to follow a pole shaft of the circuit breaker and follow the pole shaft when it rotates in a first direction to close separable contacts of the circuit breaker. A first spring mechanism biases the hub to follow the pole shaft when the pole shaft rotates in the first direction. When the pole shaft rotates in the first direction, an arm of the hub engages a rotatable shaft to drive an operating lever and operate the auxiliary contacts to the closed position. When the pole shaft rotates in the second direction, another arm of the hub recharges the first spring mechanism. Asecond spring mechanism biases the rotatable shaft and the operating lever toward a position corresponding to the open position of the auxiliary contacts when the pole shaft rotates in the second direction.
Patent CA-2245697-A1 (CA)
Inventor: HERRMANNSEN WULF
IPC: B65H37/00
Filed: 1997-01-27
Abstract: The invention relates to a hand-operated instrument for transferring a film (7) from a support sheet (6) to a substrate (8). Said instrument is provided with an application device (1) which has an end region (11) which projects from a housing. The support sheet (6) coming from a supply reel extends to form a winding reel around said end region on which for pulling and for pushing the hand-operated instrument there is one contact surface (9a, 9b) formed in each case by way of which the support sheet (6) can be pressed against the substrate (8) to transfer the film (7). To this end, the application device (1) contains two application strips (4a, 4b) spaced by a clearance (18) and each having one of the two contact surfaces (9a or 9b).
Patent CA-2246628-A1 (CA)
Title: Method of treating malodorous gases of a pulp mill
Inventor: HUPA MIKKO
IPC: B01D53/58
Filed: 1998-09-04
Abstract: A method is provided for reducing emissions of harmful nitrogen compounds from a pulp mill (e.g. kraft mill) having malodorous gases which include ammonia and reduced sulphur compounds therein. The method is practiced by (a) treating the pulp mill malodorous gases to lower the ammonia content thereof (e. g. by washing them with a bisulfite solution, such as one produced from washing flue gases with sodium sulphite), and then (b) burning the malodorous gases (e. g. in a dedicated incinerator, recovery boiler, power boiler, or lime kiln) under conditions which effect oxidation of reduced sulfur compounds therein (e. g. with an air excess of at least about 3% and a temperature of over 800 degrees C) so as to reduce odor emissions and emissions of harmful nitrogen compounds from the pulp mill. In the method (a) and (b) may be practiced using malodorous gas from a steam stripper as part of the malodorous gases treated, and the operating conditions, including the pH, of the stream stripper may be regulated in order to reduce the ammonia content of the clean condensate it produces.
Patent CA-2248237-A1 (CA)
Inventor: NEVITT TIMOTHY J
IPC: C08J5/18
Filed: 1997-02-28
Abstract: An optical film is provided which comprises an antireflective layer and a disperse phase of polymeric particles disposed within a continuous birefringent matrix. The film is oriented, typically by stretching, in one or more directions. The size and shape of the disperse phase particles, the volume fraction of the disperse phase, the film thickness, and the amount of orientation are chosen to attain a desired degree of diffuse reflection and total transmission of electromagnetic radiation of a desired wavelength in the resulting film.
Patent CA-2249245-A1 (CA)
Title: Side strut for the lower steering arm of a tractor
Inventor: COENEN HERBERT
IPC: A01B59/041
Filed: 1998-10-05
Abstract: The invention relates to a side strut 5 for the lower steering  arm  1  of  a  tractor,  having  a  single-action hydraulic  cylinder  9  whose  piston  12  comprises  first attaching means  6 to be connected to the rear of the tractor. The strut 5 also comprises a telescopic unit 10 and a  setting unit  11.  The hydraulic cylinder  9,  the telescopic unit 10 and the setting unit 11 are arranged, one behind the other,  on the longitudinal axis 20. The setting unit serves to achieve a categorical setting and the telescopic unit 10 serves to offset the change in the length of the side strut 5 when the lower steering arm is deflected sideways.
Patent CA-2249691-A1 (CA)
Title: Integrated overload control for distributed real-time systems
Inventor: GEHI GOPAL MENGHRAJ
IPC: G06F9/50
Filed: 1998-10-06
Abstract: A method of responding to overload in a real time control system. Overload is measured through the use of a control parameter such as the occupancy of a control processor or the number of entries in a queue of a module of the system. The overload indication is reduced to one of a plurality of levels. The levels corresponding to a longer term more serious overload are based on control parameter measurements over a longer period of time than the less serious short term overload levels. With autonomous control, each module of the system determines its own overload level and performs overload control actions corresponding to that level. In integrated system overload control, a centralized processor receives overload indications from each of the modules of the system and requests an appropriate overload control action of each module. Advantageously, these arrangements allow the system and its modules to respond to overload more rapidly and to return to normal operation more rapidly.
Patent CA-2251109-A1 (CA)
Inventor: WEIBEL A THOMAS
IPC: B27N1/00
Filed: 1997-03-10
Abstract: A hard surface scouring cleaner composition comprises, by weight, (a) from 0.5 to 10 % of soft abrasive particles, (b) from 0.5 to 2.5 % of a chlorine-containing bleach, (c) from 0.2 to 3.0 % of a thickening system comprising from 0.2 to 3.0 %, based on the weight of the composition, of a cross-linked polyacrylate resin having a molecular weight in the range of 1,000,000 to 10,000,000 and from 0 to 2.5 % of a synthetic smectite clay, (d) from 0.25 to 3.0 % of a bleach-stable surfactant system comprising mainly anionic surfactants, (e) from 0 to 3.0 % of an electrolyte selected from the group comprising sodium or potassium carbonates or silicates, and (f) sufficient amount of sodium or potassium hydroxide to provide a pH in the range of 11.5 to 13.5. These compositions have an apparent viscosity as measured on a Brookfield RVTDV-II with a #6 spindle at 50 rpm of from 0.5 to 7 Kcps and at 1 rpm of from 10 to 150 Kcps. The abrasive particles are preferably organic particles such as polyethylene or polypropylene.
Patent CA-2254437-A1 (CA)
Inventor: BRAY WALTER THOMAS JR
IPC: A43B3/10
Filed: 1998-11-19
Abstract: A slipper is provided by the invention. The slipper includes an outsole which includes a heel region, an instep region, and a toe region. The toe region includes an exterior toe perimeter and a first retaining wall along the exterior toe perimeter. The heel region includes an exterior heel perimeter and a second retaining wall along the exterior heel perimeter. The instep region includes an exterior instep perimeter but does not include a retaining wall along the perimeter. An upper is provided having an insole and a vamp. The upper is attached to the outsole along the first retaining wall, the second retaining wall, and the exterior instep perimeter. A method for manufacturing a slipper is described.
Patent CA-2256965-A1 (CA)
Title: Interference detection for spread spectrum systems
Inventor: CHEN GUANGZHI MICHAEL
IPC: H04B1/707
Filed: 1998-12-23
Abstract: In spread spectrum systems, such as CDMA-based systems, the presence of even narrow-band interference, such as that caused by jamming at a particular frequency, can adversely affect all of the current users in the system. According to the present invention, interference is detected and characterized by accumulating statistics for each energy spectrum in the system (e.g., for both the forward link band and the reverse link band in a telecommunication system). In particular, since a spread spectrum is ideally flat across the entire frequency band, narrow-band interference can be detected based on a significant deviation between the signal strength at any one frequency and the average signal level across the entire band. Similarly, wide-band interference can be detected based on the variance level over the entire frequency band. In a preferred embodiment, a pair of receivers are designed to perform background interference-detection processing for both the forward and reverse link.
Patent CA-2257129-A1 (CA)
Title: Messagerie telephonique vocale differee a adressage de reseau et authentification vocale
Inventor: FINNIGAN PAUL F
IPC: H04M3/50
Filed: 1997-05-30
Abstract: L'invention concerne un procédé d'authentification d'adresses réseau de destinataires de messages vocaux, ce procédé consistant à générer (102) et enregistrer (104) un "fichier réseau" comprenant des "séquences vocales" et des adresses réseau associées qui sont extraites de messages vocaux reçus dans un réseau (10) à partir de systèmes de messages vocaux (16, 18). Par une séquence vocale, on entend les trois premières secondes de la voix extraite de chaque message vocal reçu. Sur une durée prolongée, le fichier réseau s'agrandit de façon à contenir plusieurs séquences vocales et adresses associées de messages vocaux transmis par le réseau. Lorsqu'un expéditeur de message vocaux introduit ensuite une adresse réseau de destinataire (106), le système du message vocal d'origine recherche (114) le fichier réseau pour obtenir l'adresse réseau, extrait la séquence vocale associée (116) et la reproduit pour l'expéditeur du message vocal afin d'authentifier l'adresse réseau de destinataire. L'authentification vocale d'un expéditeur de message vocal permet de coder (134) dans un "fichier d'empreintes vocales" des séquences vocales d'origine et des adresses réseau associées provenant d'expéditeurs de messages vocaux clairement identifiés. Par la suite, lorsqu'un message vocal interrogeable est reçu (138), le système de messages vocaux extrait une nouvelle séquence vocale (142), génère une nouvelle empreinte vocale (144) et la compare à l'empreinte vocale d'origine associée à l'adresse (148) du message vocal. Si les empreintes vocales sont pratiquement identiques, le message vocal reçu est affecté d'un message "authentificateur" (150).
Patent CA-2257613-A1 (CA)
Title: Biaxially corrugated flexible sheet material for absorbent articles
Inventor: LODGE RICHARD WORTHINGTON
IPC: A61F5/44
Filed: 1997-06-10
Abstract: The present invention is directed to an absorbent article having a pair of opposed longitudinal edges and including an absorbent assembly having an inner facing side and an outer facing side, and a backsheet joined with the outer facing side of the absorbent assembly. The backsheet includes a formed substrate comprising a first boundary zone having a first surface pathlength and a second boundary zone having a second surface pathlength. The first and the second surface pathlengths are preferably measured when the formed substrate is in a relaxed condition. The backsheet also includes an elongated zone located at least partially between the first boundary zone and the second boundary zone. The elongated zone comprises incrementally stretched regions which result in the elongated zone being elongated in a first direction of elongation and having a third surface pathlength measured when the formed substrate is in the relaxed condition. The third surface pathlength is greater than either the first pathlength or the second pathlength such that the backsheet takes on a macroscopic three-dimensional configuration when the backsheet is in a relaxed condition.
Patent CA-2259633-A1 (CA)
Title: Improved mobile x-ray apparatus
Inventor: SCHUTZ RICHARD F
IPC: A61B6/04
Filed: 1994-11-25
Abstract: The mobile X-ray apparatus comprises a carriage having a base, a top, a front portion, a rear portion, and two  opposed  sides;  a  plurality of  wheels,  wherein  the wheels are attached to and arranged about the base of the carriage so as to stably support the base from a foor; and a mast having a first end and a second end,  wherein the first end of the mast is fixedly attached to the carriage. The  apparatus  further  comprises  a  first  rail;  a  second rail;  an X-ray tube support arm having a first end and a second end,  the  first end having  a device  for  slidable coupling with the first rail and the second end having a device for supporting an X-ray tube; an X-ray tube attached to the X-ray tube support arm by the device for supporting an X-ray tube;  a counterweight having a first end and a second end device  for slidable coupling with the  second rail;  and a device for connecting the X-ray tube support arm with the counterweight so that the weight of the X-ray tube support arm is counterbalanced by the weight of the counterweight.
Patent CA-2261417-A1 (CA)
Title: Method for acquisition and processing of nuclear magnetic resonance signals for determining fluid properties in petroleum reservoirs having more than one fluid phase
Inventor: CHEN SONGHUA
IPC: G01V3/32
Filed: 1999-02-09
Abstract: A method for determining intrinsic transverse relaxation time of a first mobile phase in a porous medium using nuclear magnetic resonance measurement sequences. The sequences are measured at first and second wait times. At least two different interecho spacing times are used for each wait time. The first and second wait time are selected to provide different magnetization recoveries of the first phase, and are selected to be longer than the longitudinal relaxation time of a second mobile phase.  For the measurements made at the first interecho spacing time, components of signals in the measurements corresponding to the first phase are separated from components corresponding to the second mobile phase by determining differences between the signals measured at the first and at the second wait times. The step of separating is performed for each of the interecho spacing times. An apparent transverse relaxation time of the first mobile phase is calculated from the separated components for each one of the interecho spacing times. A relationship of the apparent transverse relaxation time with respect to the interecho spacing time is determined, and the intrinsic relaxation time is calculated from the relationship. Viscosity of the first mobile phase can be determined from the intrinsic relaxation time.