baber/WOPTO huggingface dataset:
Patent CA-2177363-A1 (CA)
Title: Blade of an ice skate
Inventor: SWANDE JERKER
IPC: A63C1/30
Filed: 1994-11-18
Abstract: An ice-skate blade which includes a central main runner (5) and side-runners (6) positioned on respective sides of the main runner. The blade includes three parts which are separated in the longitudinal direction of the blade, namely an essentially central glide-part (8;9) having one or more runners (5,6) located on mutually the same level, and a rear part and a front part having side-runners (6) which extend on respective sides of the main runner (5) and which are located at a higher level than the main runner, so as to grip the ice only when the blade is tilted. It is preferred that the side-runners (6) extend along the full length of the main runner (5).
Patent CA-2179446-A1 (CA)
Title: Arrangement in a drive unit for an ultrasound sealing unit
Inventor: R BE MAGNUS
IPC: G10K11/02
Filed: 1996-06-19
Abstract: The disclosure relates to an arrangement in a drive unit (2) for an ultrasound sealing unit (1). The drive unit is of the type which consists of a number of piezoelectric ceramic plates (3) with interjacent, conductive metal sheets (4), connected to an a.c. source. The drive unit (2) further consists of a counterweight (5) and a clamping screw (6). The clamping screw (b) holds together under a certain pretensioning the ceramic plates (3), the metal sheets (4), and the counterweight (5). Moreover, the clamping screw fixedly secures the drive unit (2) in the sealing unit (1). The sealing unit (1) comprises a homogeneous body (13), consisting of reaction bodies (7) which surround the drive unit, a nodal plane (10) with an anchorage edge (11), and a horn (8) with an elongate, narrow sealing surface (9).      The arrangement according to the present invention consists of a gasket (12) so disposed that it constitutes a spacer (H) between the body (13) of the sealing unit (1) and the ceramic plates (3). The gasket (12) permits the oscillation of the ultrasound sealing unit (1), but prevents residual flexural stresses from reaching the drive unit (2). The spacing dimension (H) of the gasket (12) may be selected so as to govern the amplitude of the sealing unit (1) to a predetermined, preselected amplitude.
Patent CA-2179677-A1 (CA)
Inventor: WILDI THEODORE
IPC: H05B3/34
Filed: 1996-06-21
Abstract: An extra-low-voltage heating system that produces a reduced magnetic field and which uses three insulated copper wires, or equivalents, as heating elements. Its low operating temperature, robustness and safety enable the system to be installed, for example, in floors and walls for the general heating of buildings, and in outdoor pavements, for snow-melting purposes, etc. The single-phase feeder busbars are configured to reduce the magnetic field around the feeder. A monitoring network continually checks the integrity of the heating system.
Patent CA-2183473-A1 (CA)
Inventor: BURNOCK PAUL
IPC: A45C1/04
Filed: 1996-09-24
Abstract: The Travel Safe Money Belt relates to a belt comprising a pouch or compartment which ie fastened to an inside surface of a mane or ladies' belt. The pouch or compartment is designed to hold momey, traveller's cheques, credit cards, keys, and the like.
Patent CA-2183709-A1 (CA)
Inventor: HARADA YOSHIO
IPC: H01L21/203
Filed: 1996-08-20
Abstract: An electrostatic chuck member comprises a metal substrate, an undercoat of a metallic spray-coated layer and a topcoat of Al2O3TiO2 based spray-coated layer containing a TinO2n-1 (n=1-9) type compound, and has a large volume resistivity and a less scattering thereof and a stable quality.
Patent CA-2183722-A1 (CA)
Title: Heating element method
Inventor: VILLRINGER EGAN
IPC: H05B3/52
Filed: 1996-08-20
Abstract: A method of making an elongated electrical heating element having a resistance wire with a helical portion extending between two lead pins surrounded by compacted insulating powder in an outer casing. The lead pins are attached to a tightly coiled resistance wire by screwing threaded portions at the inner ends of the lead pins into coiled portions at the outer ends of the resistance wire. The lead pins are pulled further apart to stretch the coiled resistance wire to form the helical portion of the resistance wire and then attached to a resistance meter. One of the lead pins is then rotated relative to the other lead pin to adjust the effective electrical resistance of the heating element to an accurate and uniform valve. The resistance wire and lead pins are mounted in an outer casing which further stretches the helical portion to a predetermined length. The outer casing is then filled with insulating powder in a conventional vibrating filling machine. Finally, the casing is compressed to compact the insulating powder around the heating element.
Patent CA-2184050-A1 (CA)
Inventor: URBACH BRIAN A
IPC: F16C11/06
Filed: 1996-08-23
Abstract: A ball joint assembly (10) includes a housing (12) having a socket chamber (14) in which a ball end portion (18) of a movable stud member (16) is disposed. A shank portion (22) of the movable stud member (16) extends from the housing (12). An improved boot seal assembly (40) includes a flexible seal wall (48) having an inner end portion (50) which engages the housing (12) and an outer end portion (54) which engages the shank portion (22) of the stud member (16). The seal wall (48) cooperates with the housing (12) and the stud member (16) to form a chamber (42) in which lubricant (44) is disposed. A vent opening (70) is provided in the outer end portion (54) of the seal wall (48). A retainer ring (62) blocks the vent opening (70) in the outer end portion (54) of the seal wall (48) when the lubricant pressure in the chamber (42) is less than a predetermined pressure. When the lubricant pressure in the chamber (42) exceeds the predetermined pressure, the retainer ring (62) and the outer end portion (54) of the seal wall (48) move relative to each other under the influence of the lubricant pressure to vent pressure from the chamber (42) through the vent opening (70).
Patent CA-2186366-A1 (CA)
Title: Differential expansion of fetal stem cells in the maternal circulation for use in prenatal genetic analysis
Inventor: ALTER BLANCHE P
IPC: G01N33/569
Filed: 1995-03-24
Abstract: The methods of the present in-vention use blood of pregnant females and fetal cell amplification to facilitate prenatal diagnosis without invading fe-tal space. This method is less invasive and simpler than amniocentesis or chori-onic villus sampling because it involves only drawing blood from the mother to obtain a fetal cell sample. If there is a specific disease with known molecu-lar mutations being sought, cells from the sample are a source of DNA en-riched for fetal material. If the disease is one involving red cells, this method provides fetal red cells for analysis. If the disease involves white cells, differ-ent cytokines can be used to selectively produce fetal leukocytes. When an ab-normal chromosome pattern without a specific diagnostic risk (e g., advanced maternal age) is being sought, then the culture method provides dividing cells of fetal origin.
Patent CA-2189640-A1 (CA)
Title: Electronic seat belt tensioning system
Inventor: BEHR LEONARD W
IPC: B60R22/46
Filed: 1996-03-25
Abstract: A method and system (10) for controlling the tensioning of a vehicle seat belt utilizes a control processor (20) and a motor (12) to provide initial tensioning of the seat belt. After initial tensioning, the control processor (20) removes substantially all tension on the seat belt while continuously monitoring seat belt payout via am encoder (18). The system provides out-of-position warnings, and is responsive to vehicle acceleration information from a crash discrimination system (22) and/or an object detecting radar system (26) to control tensioning of the seat belt. The system further provides for earlier seat belt tensioning activation by utilizing a pyrotechnic pretensioner (32) having a replaceable pyrotechnic cartridge (38).
Patent CA-2191913-A1 (CA)
Title: Improvements to methods and apparatus for visbreaking of heavy petroleum loads
Inventor: FERSING MARC
IPC: C10G51/02
Filed: 1996-12-03
Abstract: Viscoreduction process for a hydrocarbon-rich load in the liquid state, in which this load is brought to a temperature which provokes cracking at least part of the hydrocarbons present, is then introduced into the lower part of a maturer (3) in which it moves from bottom to top and is removed from the top to a fractionating unit. An inert gas is injected into the maturer in the hydrocarbon load, at least at the base of the unit near its side walls. The gas is injected towards the top along the side walls of the maturer and circulates from bottom to top along the walls, in the same direction as the hydrocarbon load. Also claimed is device for carrying out the above process. Preferably the gas is injected into the maturer at several different levels next to the side walls, by injectors arranged in a coronet. The gas is injected into the hydrocarbon load after it is heated, upstream of the maturer in the direction of flow of the load. For a flow of hydrocarbons of between 75 and 200 t/h, the gas flow is between 0.2 and 3 t/h, preferably between 0.5 and 2 t/h.
Patent CA-2193293-A1 (CA)
Title: Cable tie having enhanced abutment wall in locking head
Inventor: SORENSEN SOREN CHRISTIAN
IPC: B65D63/10
Filed: 1996-12-18
Abstract: In a tie including an elongated tongue and a locking head having a movable pawl that is hinged at one side of the opening of the locking head across the opening from an abutment wall for locking engagement with a set of ratchet teeth on the tongue when the tip of the tongue has been inserted through the opening, the abutment wall is enhanced for withstanding a force that would tend to bow the abutment wall when the pawl forces the tongue against the abutment wall in response to a pulling force applied to the tongue in a direction opposite to the direction of insertion, but does not require as much material as would be required for an abutment wall that merely had increased thickness; and, when the tie is made by injection molding, the abutment wall is not significantly subject to deformation when the injected plastic material cools. The abutment wall includes a. plurality of apertures extending within the abutment wall approximately parallel to the direction of insertion, with apertures not being exposed to an abutment surface of the abutment wall and not being as wide as the pawl. The apertures are elongated and pairs of apertures extend along a common axis from opposite ends of the abutment wall but do not extend to join each other within the abutment wall. The abutment wall includes a plurality of the pairs of the apertures; and the apertures do not extend to within that portion of the abutment wall against which force is applied through the tongue by the lateral middle of the portion of pawl that contacts the tongue when the tongue is forced against the abutment surface by the pawl.
Patent CA-2194877-A1 (CA)
Title: Heterocycle-condensed morphinoid derivatives
Inventor: DONDIO GIULIO
IPC: A61K31/485
Filed: 1995-07-07
Abstract: Compounds of formula (I), are selective delta opioid agonists and antagonists, and are useful as analgesics and in treating general neurologic disorders.
Patent CA-2196022-A1 (CA)
Inventor: MCNULTY KENNETH J
IPC: B01D53/18
Filed: 1997-01-27
Abstract: An integral collector-distributor device including chimney hats and adapted for use in a gas-liquid exchange column to promote radial mixing of a liquid on a distributor tray surface. The collector-distributor device includes a tray having a tray surface adapted to extend generally horizontally across the cross-sectional area of the column to collect downwardly flowing liquid. A plurality of gas risers on the tray permit the upward movement of an upwardly flowing gas through the tray, and a plurality of liquid distributors permit the generally uniform distribution of the collected downwardly flowing liquid to a lower section of the column. A plurality of chimney hats, each having an upper surface and a one and other end, extend over and above at least a portion of the gas risers, are angularly inclined from the horizontal, or are horizontal, collect downwardly flowing liquid on the upper surface and permit the collected liquid on the upper surface to flow away from the point of liquid collection to another section of the tray to promote improved liquid mixing across the tray surface and to reduce liquid concentration gradients on the tray surface. The chimney hats are of a selected width, wider that the width of the gas risers, to provide for minimal space between each adjacent chimney hat. The wide chimney hats, particularly where horizontal, may also be of different selected vertical heights to permit the upward flow of gas.
Patent CA-2196730-A1 (CA)
Title: Display rack
Inventor: MANIAS NANCY
IPC: A47F1/12
Filed: 1997-02-04
Abstract: A display rack has a supporting framework and a number of container supports. Each container support includes a downwardly facing slot, which can be formed between a rear portion and a downwardly-extending flange. A bottom portion extends from the rear portion. Containers, which can be open cardboard containers, which are generally rectangular, are supported on the rear portions. Each container is longer than the bottom portion, so that its weight naturally forces the rear wall of the container upwards. The upper edge of the rear wall then comes into engagement with the slot, to secure the container.
Patent CA-2197064-A1 (CA)
Inventor: MCCAY STEVE WORTH
IPC: B65H29/40
Filed: 1995-08-09
Abstract: A diverter and on-edge stacker for diverting and on-edge stacking of envelopes is disclosed. The diverter and on-edge stacker includes an envelope conveying path (13) along which the envelopes are conveyed to a device (18) for diverting an envelope by intercepting a lateral portion of the leading edge thereby skewing the envelope. A stepper motor (24) drives a spider wheel (14) having legs (26) and gaps (28) for receiving diverted envelopes. Revolving rollers (38) capture and drive the skewed envelopes from the conveying path (13) into a gap (28) of the spider wheel (14). A sensor (34) senses an envelope driven into a spider wheel gap (28) to control rotation of the spider wheel (14) by one gap pitch.
Patent CA-2197790-A1 (CA)
Title: Gas cylinder valve with non-perforated diaphragms
Inventor: DANIELS JAMES R
IPC: F16K41/12
Filed: 1995-08-15
Abstract: A gas cylinder valve with (1) minimum wetted area has a one-piece valving assembly (53) comprising a valve member (19), a non-perforated diaphragm member (37) and a valve stem (51), the latter including a threaded stud (59) and a stem shaft (61) threaded on to the stud (59). The threaded stud (59), diaphragm member (37) and valve member (19) are fused together by a YAG laser weld (69) applied through a central, blind bore (29) in the valve member (19). Another through weld (71) is applied around the peripheral edge (73) of the threaded stud (59). A rim (67) on the stem shaft (61) clamps the diaphragm (37) outside the peripheral weld (71) through a pair of washers (75, 77) which absorb the torsional load. A  helical compression spring (91) bears on a valve stem shaft shoulder (95) outside the wetted area to bias the valve open. A resilient bushing (79) supported by a metal cup (43) backs up the diaphragm member (37).
Patent CA-2198024-A1 (CA)
Title: A system and method for establishing long distance voice communications using the internet
Inventor: LANG ALEXANDER CHRISTOPHER
IPC: H04M7/00
Filed: 1997-02-19
Abstract: An apparatus and a method for completing long distance telephone calls over the Public Switched Telephone Network (PSTN) using an automated Internet Operator are disclosed. The apparatus includes a long distance service provider node connected to the Internet and a call connection control computer connected to the Internet and interfaced to a toll switch connected to the PSTN. The method permits a calling party to request the automated Internet Operator to complete long distance call connections by connecting to the long distance service provider node and identifying himself. The caller completes a call request form which is uploaded to the long distance service provider node and passed to the call connection control computer for processing. The call connection control computer instructs the toll switch to dial the calling party, dial the called party and conference the two lines. The call connection control computer preferably uses a least cost routing algorithm to select an interexchange carrier for each call, depending on the origination and termination location of the call. The advantage is a flexible long distance service that is not interexchange carrier dependent for the best long distance rates.
Patent CA-2199731-A1 (CA)
Title: Treating red blood cell solutions with anti-viral agents
Inventor: COOK DAVID
IPC: A61L2/00
Filed: 1996-06-07
Abstract: Methods and compositions for treating pathogens in material are described, including methods of decontaminating human fluids prior to processing in the clinical laboratory and methods for decontaminating blood products prior to in vivo use. The techniques handle large volumes of human blood products without destroying the function of the blood products. Novel compounds for photodecontaminating biological material are also contemplated which are compatible with clinical testing, in that they do not interfere with serum analytes.
Patent CA-2200266-A1 (CA)
Inventor: KNIVETON PATRICK EDWARD
IPC: F21K99/00
Filed: 1997-03-18
Abstract: An optical element (26) is fitted to a high intensity light emitting diode (10) used in a variable message sign. The optical element (26) has surfaces (30) which redirect any stray light from the light emitting diode (10) to form useful light. The faces (32, 34 \A 36) of the optical element (26) are angled to shape the light beam emitted therefrom. The light beam is shaped by the faces (32, 34 \A 36) to produce a beam having increased intensity in a predetermined direction. The optical element (26) enhances the visibility of the sign and allows a reduction in the number of light emitting diodes (10) used in the sign.
Patent CA-2201497-A1 (CA)
Title: System for pumping well fluids
Inventor: MUTH GAROLD M
IPC: F04B53/12
Filed: 1995-10-19
Abstract: The present invention provides a pumping system having parallel power tubing (12) and production tubing (13) strings in which production is pumped up the production tubing (13) through a flow control valve (32) and a rod (25) operated insertable and removable pump (24) is disconnectably connected into the power tubing (12) wherein the insert type pump (24) and the flow control means (32) may be removed from and inserted into the tubing strings without the need to remove either tubing string from the well.
Patent CA-2202677-A1 (CA)
Title: Aircraft anti-collision device to prevent ground crashes and anticipate turns
Inventor: MEUNIER HUGUES
IPC: G08G5/04
Filed: 1997-04-14
Abstract: Vectors defining the state of motion of the aircraft are used to predict it's forward trajectory (2) and a further prediction is made (411) of the maximum vertical limit after pilot action and taking into account reaction time and aircraft characteristics. A working memory (3) contains details of ground contours such that an altitude envelope may be defined and this is compared (421) with the maximum vertical limit. Similar predictions (412,413) and comparisons (422,423) are made to the right and left of the aircraft and a full alarm is sounded (5) when all three comparisons are positive. Intermediate warnings are given for lesser combinations of the comparisons.
Patent CA-2204225-A1 (CA)
Title: Improvements in methods and apparatus for recording and information processing, and recording method therefor
Inventor: SUZUOKI MASAKAZU
IPC: G06T15/00
Filed: 1997-05-01
Abstract: A recording medium, recording and information processing  apparatus  and methods  by which  efficient processing of data and a high processing speed can be readily achieved at lower cost.   A main CPU converts coordinates of a polygon in response to a manual operation of an operation unit by a user and transmits data of the polygon to a programmable packet engine via a main bus.  The packet engine calculates a Z value representative of the position of the polygon in the depthwise direction from coordinate values of the apexes of the polygon supplied from the main CPU, divides the polygon into a number of sub-polygons corresponding to the Z value, converts coordinate values of the apexes of the sub-polygons  in accordance with a normal vector and curved surface parameters and produces a curved surface composed of the sub-polygons.   A graphical processing unit writes pixel data of the sub-polygons produced by the programmable packet engine into a frame buffer and performs rendering processing.
Patent CA-2206155-A1 (CA)
Title: Knowledge-based information retrieval system
Inventor: LANGLEY ALAN MARK
IPC: G06N5/04
Filed: 1997-05-26
Abstract: A method and system for assisting a user in solving a new problem case within a selected domain, such as a complex apparatus. The method comprises the steps of providing a case database comprising domain knowledge for the selected domain and previously solved cases, each previously solved case including a plurality of case attributes, said case attributes comprising case attribute names and associated values, prompting the user to select from the case attributes a set of new problem case attributes considered to be relevant to the new problem case and to provide current values for each of the new problem case attributes, searching the database of solved cases for candidate solved cases that have one or more of the new problem case attributes selected by the user and generating a list of said candidate solved cases, matching the candidate solved cases to the new problem case by comparing the value for each of the case attributes in the new problem case to the value for the same case attribute in each of the candidate solved cases, ranking the candidate solved cases in descending order of similarity and presenting a list of candidate solved cases in order of relevance based upon the ranking, generating additional questions based upon unanswered attributes of the candidate solved cases for which values have not yet been provided by the user, to assist the user to select and provide values for the unanswered attributes and thereby appropriately order the candidate solved cases; and repeating the above steps until the user is satisfied with the list of candidate solved cases.
Patent CA-2214137-A1 (CA)
Title: Tool kit for working wheel bearings
Inventor: GOGUEN ROLAND
IPC: B25B27/067
Filed: 1997-08-28
Abstract: A tool kit for working wheel bearings, comprising at least a first punch for removing bearing cups from a wheel hub of a vehicle. The first punch comprises an elongated handle and a first punch head having a first effective width. The structure of the first punch head is such that when the first effective width thereof is selected to correspond to an inside diameter of first and second spaced-apart similar bearing cups in a wheel hub of a vehicle, the first punch head is usable for insertion through one of the bearing cups and for working one bearing cup at the time out of the wheel hub. In another aspect of the present invention, the tool kit comprises a second punch having a bearing retainer mounted thereon. The bearing retainer has a pair of spaced-apart fingers each having a tab extending outwardly. The second punch is usable for pushing a bearing cone and roller assembly out of a bearing cup and for pushing an oil seal out of its seat in a wheel hub, while holding the bearing cone and roller assembly thereto and preventing the bearing cone and roller assembly from falling to the ground when the oil seal pops out of its seat. In other aspects of the present invention, the tool kit comprises a disc, a circular plate and a pair of wing nuts usable with the disc and plate for installing bearing cups, bearing cones, and oil seals in a wheel hub.