baber/WOPTO huggingface dataset:
Patent CA-2113781-A1 (CA)
Inventor: ESPEY CARL R
IPC: F16B37/14
Filed: 1994-01-19
Abstract: ABSTRACT OF THE DISCLOSURE       The invention provides a nut and cap assembly, wherein the nut has relatively flat external side faces symmetrically located about a central axis, the side faces being symmetrical on opposite sides of a central plane perpendicular to the axis of the nut.  Each of the side faces has two axially extending slots formed therein on opposite sides of the central plane. The slots are separated at their inner ends by a bridge portion in the respective side face of the nut.  The assembly also includes a cap formed of relatively stiff resilient plastic material with a socket formed therein, corresponding generally to the shape of the nut.  Each interior side wall of the socket of the cap has a projection extending radially inward and having a ramp portion facing toward the socket opening.  During assembly, each projection is initially received in one slot of the nut, and during axial movement, the ramp of each projection engages the respective bridge portion of the respective side face of the nut so that the projection is urged radially outward.  This flexes the socket walls sufficiently that the projections move axially over and beyond the bridge portion and lock in place in the other slot of the respective side face to secure the cap to the nut.
Patent CA-2114562-A1 (CA)
Title: Fraud Protection for Card Transactions
Inventor: PENZIAS ARNO A
IPC: G06Q20/34
Filed: 1994-01-31
Abstract: The problems of fraud in card transactions can be reduced by, after requiring the person engaged in the card transaction to initially identify himself, such as by supplying a card number, a) requesting, the person to supply as authentication information either 1) a randomly selected piece of prestored information or 2) information derived from a randomly selected piece of prestored information; and b) completing the transaction only if the authentication information requested is correctly supplied. The authentication information requested is described in terms of its nature, i.e., what it represents, so that one can not deduce from the request the correct response without knowing the selected prestored piece of information. Since the authentication information is randomly determined for each card transaction, a thief will rarely, if ever, be able to successfully complete a card transaction simply by supplying, in response to a request, the same piece of authentication information last supplied by the authorized person. Each authorized person already knows theparticular pieces of information that are prestored for him, e.g., birthdate of spouse, year of school graduation, and mother's telephone number. Thus, he need exert noextra effort to remember them. If the pieces of prestored authentication information are various numbers they may be transmitted over a telephone network from a caller to the authorization system using currently available dial pads and DTMF signaling.
Patent CA-2120318-A1 (CA)
Title: Partial denture with s-shaped joint
Inventor: WILLITS WILLIAM G
IPC: A61C13/24
Filed: 1994-03-30
Abstract: The present invention relates to a partial denture that includes a series of artificial teeth along with an opening formed on a ridge portion of the denture for allowing existing teeth to extend therethrough. In a preferred embodiment the partial denture is basically comprised of a relatively hard acrylic material.      Around the opening formed in the ridge there is provided a relatively soft material and this includes an elastic strip that is formed in the partial denture adjacent the opening formed in the ridge for existing teeth. The elastic strip is molded adjacent the ridge opening and is particularly integrally molded with the relatively hard acrylic material that forms a substantial part of the partial denture. To assure a secure connection between the elastic retainer strip and the relatively hard acrylic material, there is provided a generally curved S-shaped molded joint between each end of the elastic retainer strip and the relatively hard acrylic material.
Patent CA-2122623-A1 (CA)
Title: Drill pipe handling
Inventor: STOGNER HUEY
IPC: E21B19/16
Filed: 1992-10-29
Abstract: Multi-joint stands (126, 127) of drill pipe are assembled and disassembled in a drilling rig (15) by use of a powered mousehole (11) concurrently with well drilling operations conducted by use of a drill string top drive system (23).  The powered mousehole (11) has an upwardly open bowl (45) in a floor (17) of the drilling rig which can be rotated about a vertical axis (55). A pipe joint (110) held in the bowl, and depending from it, can be screwed, with controlled levels of torque, into connection with a second pipe joint (113) suspended vertically above the first joint (110) by a hoist system (13) which is separate from hoisting equipment (19) carrying the top drive system (23) over a well bore (21). The second pipe joint (113) is held from rotation by a tong assembly (12), but can move axially against a yieldable support (40) into threaded connection with the first joint (110).
Patent CA-2124112-A1 (CA)
Inventor: MANSIKKAMAKI PAAVO
IPC: B27K5/06
Filed: 1994-05-20
Abstract: The invention relates to a method for the hardening of wood material by impregnating it with a polymerizable substance and by polymerizing the polymerizable substance by means of heat. Heat transfer and cleaning in the polymerization have been improved through the impregnated wood material being in contact with water during the polymerization. The water is preferably hot and pressurized and serves at the beginning of the polymerization as a heating medium and during the polymerization as a cooling and cleaning medium.
Patent CA-2125209-A1 (CA)
Title: Apparatus for removing sludge deposits
Inventor: MASTERTON HARRY WILLIAM
IPC: F22B37/48
Filed: 1994-06-06
Abstract: ABSTRACT OF THE DISCLOSURE    An  apparatus  for  removing  sludge  from  the  tubes  and tubesheet of a steam generator.  A support structure is adapted to be mounted at an access port of a steam generator.  A lance tube extends from the support structure into the steam generator.          A spool attached to a high pressure hose is received in the lance tube.  A pinch roller assembly mounted on the support structure is used  to  move the cylinder through the  lance tube.   High pressure water flows through slots drilled in the spool and out holes  in the lance tube against the tubes and tubesheet.   A rocker motor cause  back and forth rotation or rocking of the lance tube to create a sweeping action.  The lance tube may also be adjusted axially to insure that the water streams are directed to the tube lanes.
Patent CA-2126235-A1 (CA)
Title: Method and apparatus for the production of discrete agglomerations of particulate matter
Inventor: LIMA-MARQUES LUIS
IPC: B41J2/06
Filed: 1992-12-17
Abstract: A method and apparatus is provided for the generation of agglomerations of particulate material in a liquid. Agglomera-tions are built up at a point under the effect of an electric field and ejected by electrostatic means. The size of the agglomeration is dependent upon the strength of the electric field, point geometry, the nature of the liquid and the nature of the particles. Agglom-erations of particles in the range of from 1 to 500 microns are produced. The invention is useful for non-impact printing and other applications where delivery of agglomerations of particles is useful such as in inhalable pharmaceuticals.
Patent CA-2133568-A1 (CA)
Inventor: FOWLER DONALD W
IPC: F41G3/22
Filed: 1993-05-06
Abstract: 2133568 9323716 PCTABS00028 During operation of a flight control system in a coupled aiming mode, wherein a fire control system (55) azimuth command and elevation command provide an aircraft attitude reference, a bank angle calculation function (1077) provides a bank angle signal to place the aircraft in a roll angle which results in a substantially coordinated turn. The bank angle signal is determined primarily as a function of an aiming line of sight heading rate for small azimuth commands, and is determined primarily as a function of aircraft heading rate for large azimuth commands. Additionally, the bank angle initially comprises a component as a function of aircraft lateral acceleration for driving aircraft lateral acceleration to zero, and after the aircraft assumes a roll attitude for turn coordination, the bank angle comprises a component as a function of aircraft side slip for driving aircraft side slip to zero.  Automatic turn coordination is disabled if the pilot maneuvers the aircraft to avoid a coordinated turn, and is re-enabled if the pilot maneuvers the aircraft into a coordinated turn attitude. A  rate feedback path (143) is provided during operation in the coupled aiming mode wherein aircraft yaw and pitch rate error signals are respectively replaced by the rate of change of the azimuth command and the elevation command. During operation in the coupled aiming mode, intended pilot commanded maneuvers maintain full authority at all times.
Patent CA-2134312-A1 (CA)
Title: Enclosure with sealant for spliced coaxial cables
Inventor: ROBERTSON JAMES W
IPC: H02G15/18
Filed: 1994-10-25
Abstract: A cable splice enclosure (10) including a pair of cover members (12,14) joined along a flexible hinge (62,64) and rotatable together about the hinge to enclose a cable splice (150) and secure to each other with latches along both side edges (16,18;92,94). Sealant material (120) disposed within central regions (32,34) of both covers environmentally seals the surfaces of the splice connection (154,158,160) upon full closure. Embossments (44,46) on both sides of the cable-receiving channels (20,22) in associated pairs (40,42,48) proximate the cable exits include resilient flange portions cooperate to press into the cable insulation upon full closure to define a strain relief.
Patent CA-2135239-A1 (CA)
Title: Extrudable corrosion resistant aluminum alloy
Inventor: SMITH WARREN A
IPC: C22C21/00
Filed: 1994-11-07
Abstract: An extrudable brazeable corrosion resistant aluminum alloy, consisting essentially of, by weight percent, .1-.2 titanium, .6-1.2 manganese, up to .1 silicon, up to .2 iron, and other impurities up to .15, with each such other impurity no greater than .03, and the remainder aluminum.          A method of fabricating a heat exchange tube array, by (i) extruding aluminum alloy tubing of the above composition to a uniform wall thickness of about .4mm; (ii) bending and/or arranging the tubes to form a tube array for conducting a fluid medium therethrough; (iii) interposing an aluminum-based heat exchange means between and in contact with the tubes of the array to provide for heat transfer; (iv) brazing the heat exchange means to the tube array by heating to the temperature range of 595C whereby the tube array will not be adversely affected metallurgically by the brazing operation.
Patent CA-2136324-A1 (CA)
Title: 5'-indolinyl oxazolidinones useful against mycobacterium tuberculosis
Inventor: BRICKNER STEVEN J
IPC: A61P31/04
Filed: 1993-05-26
Abstract: 5-(S)-N-(1'-Hydroxyacetyl-5'-indolinyl)-5-(acetamidomethyl)-2-oxazolidinone and 5-(S)-N-(1'-(2-thiophenecarbonyl)-5'-indolinyl)-5-(acetamidomethyl)-2-oxazoli_ dinone are useful in treating tuberculosis caused by M. Tuberculosis.
Patent CA-2137626-A1 (CA)
Title: 3-oxo-1,4-benzothiazine derivatives
Inventor: KAWASHIMA YOICHI
IPC: C07D279/16
Filed: 1994-12-08
Abstract: This invention relates to the compounds of the formula [I] which  are useful  for  the treatment  of  cataracts,  and  the synthetic intermediates of the formula [II],                      [I]                    [II]   wherein R1 is hydroxy which can be protected by a protective group; R2 is lower alkyl; R3 is hydrogen, lower alkyl, hydroxy, which can be protected by a protective group, or lower alkoxy, and the said lower alkyl can be substituted by hydroxy, which can be protected by a protective group, amino or lower alkylamino;    R4 is tetrazolyl, phosphonyl or lower alkyl ester thereof, or sulfonyl or lower alkyl ester thereof, and A is alkylene.
Patent CA-2142944-A1 (CA)
Title: Method for the production of expandable plastics granulate
Inventor: WALDER ANDREAS
IPC: C08L25/06
Filed: 1995-02-20
Abstract: In a method for the production of expandable plastics granulate (C) a plastics melt (A') is impregnated by a fluid blowing agent (B), the blowing agent being at an elevated pressure within a predetermined pressure range only partly soluble in the melt. The method comprises the following steps: 1. dispersion of the blowing agent in the melt, 2. retaining of the mixture within a predetermined pressure range for a predetermined retention time, 3. cooling of the melt impregnated by the blowing agent to a temperature which is several °C above the solidification temperature of the melt, and 4. granulating the cooled mixture. According to the invention the mixture is acted upon by static mixing elements and by this mixing is avoided segregation.
Patent CA-2144270-A1 (CA)
Title: Common automatic route selection leading digit strings
Inventor: MACISAAC BRIAN
IPC: H04Q3/62
Filed: 1995-03-09
Abstract: A communication switching system comprised of (a) apparatus for receiving dialed digits relating to a call, (b) apparatus for storing a table of groups of initial digits and for each group of initial digits storing a subtable, each subtable being comprised of a list of quantities of digits expected to follow a corresponding group of initial digits, each quantity being correlated with a communication route, each list of quantities of digits being sorted in ascending order, (c) apparatus for selecting a group of initial digits in the table corresponding to first digits of the dialed digits, and for pointing to a communication route corresponding to a lowest quantity of digits in a subtable of selective group of initial digits, (d) apparatus for using the communication route for completion of the call in the event the dialed digits contain a quantity of digits corresponding to the lowest quantity of digits, (e) apparatus for detecting a dialed digit in excess of the quantity of digits and for pointing instead to a next highest quantity of digits in the subtable of the selected group of initial digits, (f) apparatus for repeating step (e) until no dialed digit is detected which is in excess of a highest quantity of digits pointed to and using a corresponding communication route listed in the subtable for completion of the call.
Patent CA-2145914-A1 (CA)
Title: Model-assisted coding of video sequences at low bit rates
Inventor: ELEFTHERIADIS ALEXANDROS
IPC: H04N7/26
Filed: 1995-03-30
Abstract: A method of coding a video signal for low bit rate coding applications such as video teleconferencing or telephony. In one illustrative embodiment, an encoder comprises an automatic face location detection method which models face contours as ellipses and transmits the face location model parameters to the decoder. This face location information may be exploited with use of at least two techniques, each in accordance with another illustrative embodiment of the present invention. In one technique, referred to herein as "model-assisted dynamic bit allocation," a three-dimensional subband-based coding method is enhanced by providing two quantizers per subband -- a fine quantizer which is used to code pixel data inside the detected face location model, and a course quantizer which is used to code pixel data outside this region. Thus, the coding quality inside the facial regions is improved relative to the coding quality of the remainder of the image. In another technique, referred to herein as "model-assisted motion compensation," a motion-compensatedcoding method is enhanced by automatically computing motion vectors for pixels inside the face region based on the relative positions of detected facial models in successive frames. No motion information needs to be explicitly transmitted to the decoder, since the motion vector may be recomputed at the decoder.
Patent CA-2146292-A1 (CA)
Title: Fast response low-pass filter
Inventor: BROOKS JAMES R
IPC: H03H11/04
Filed: 1995-04-04
Abstract: A fast response, low-pass filter comprising a slow response low-pass filter and a fast response low-pass filter. Both of these low-pass filters receive an input signal, and their respective outputs are compared to each other. When the output of the slow response filter differs from the output of the fast response filter by a predetermined value, the response time of the slow response time filter is increased so that it can more rapidly follow the input signal. The fast response time low-pass filter can be implemented with either analog low-pass filters or by digital low-pass filters.
Patent CA-2148364-A1 (CA)
Inventor: GANZEBOOM WILHELMUS EVERHARDUS
IPC: B65D75/70
Filed: 1993-11-02
Abstract: 2148364 9410119 PCTABS00032 Container bag unit (15) for placing on a dispensing device (1).  This container bag unit (15) is distributed in a sealed position and on placing on the dispensing device (1) an opening is drilled therein for metering the contents of the container to the dispensing device (1). According to the invention, the piercing means (23) are fitted in the container bag unit (15), in the coupling means (18). The dispensing device (1) is provided with means which act directly or indirectly on the piercing means, so that when the container bag unit (15) is placed on the dispensing device (1) the piercing means (23) become operational.
Patent CA-2148969-A1 (CA)
Title: Application of low density drilling muds
Inventor: GLEADALL GEORGE B
IPC: C09K8/03
Filed: 1995-05-09
Abstract: Through the addition of light weight additives, it is possible to reduce the density of drilling muds down to a desired value that will permit faster rates of production than can be achieved with conventional drilling muds.     The LBG Additive series can produce an infinite density variation from 360 kg/m3 to 1000 kg/m3 to be used in drilling muds for under balanced development drilling of oil wells.     With the addition of a polymer compound and the LBG Additive, the drilling mud engineer can mix up the correct density so as to allow the drilling operation to proceed in an under balance manner.     There are large financial reasons for oil companies to reduce the density of their drilling muds to the point of under balanced operation.     The LBG Additives range in density from 0.02 g/cc to 0.9 g/cc and in diameter from 10 micro to 150 micron.     The applicability of the additive is directly related to various factors that are encountered during the drilling cycle.  This patent explains the applicability of the additive to the drilling cycle.
Patent CA-2149406-A1 (CA)
Title: Improved friction hinge
Inventor: GELFAND MIKHAIL
IPC: E05D11/08
Filed: 1994-07-21
Abstract: There is disclosed a friction hinge assembly that can be inexpensively produced having a shaft and, in the simplest embodiment, one sheet metal part. In the preferred embodiment, the friction band (21) and the bracket (31) are one piece. In order to achieve the necessary alignment between the axis of the friction band and the axis of the shaft (17), the configuration of the mounting hole (23) for the shaft is elongated only along one axis. This provides clearance for necessary manufacturing tolerances without introducing additional backlash. In another embodiment, proper alignment is assured by slotted mounting holes (37) for mounting the friction bands to the bracket.
Patent CA-2149632-A1 (CA)
Inventor: MCBEAN RONALD V
IPC: G06F17/40
Filed: 1993-11-23
Abstract: An instrumentation system in-cludes a hand-held computer-based measuring meter (36) having a vi-sual display (40) and a plurality of individual sensor modules (20, 34) that can be selectively coupled to the measuring meter for measuring one of a variety of parameters such as temperature, pressure, or the like. Each sensor module includes a sen-sor (22, 36) responsive to a particu-lar stimulus, as well as a data mem-ory (24, 38) for storing information about the sensor. When the sen-sor module is interconnected with the measuring meter, the measuring me-ter accesses the memory of the sen-sor module to input data correspond-ing to sensor type, an accuracy code, calibration point data, and a calibra-tion date code. The measuring meter compares the calibration date code to the current date to determine whether the sensor module requires recalibra-tion. The measuring meter uses the accuracy code data to determine the number of significant digits displayed by the visual display. The measur-ing meter uses the sensor type code and calibration points to calibrate the measuring meter relative to the sensor module and to select the algorithm used to compute the current value measured by the sensor module.
Patent CA-2149672-A1 (CA)
Title: Apparatus and method for the diagnosis of labor
Inventor: ROSENBERG ETHAN
IPC: A61B5/00
Filed: 1993-11-16
Abstract: Disclosed are methods and apparatus for the electromyographic detection of electrical fields inherent in muscular activity, for the diagnosis of labor in a pregnant mammal. The apparatus includes a system (10) for determining a periodicity, and for measuring a magnitude and a direction of movement, of the electrical signal in an abdominal region, and for processing the signal to indicate normal and abnormal labor conditions, the onset of true labor, and the extent of cervical dilation. A Labor Onset processor (16e) determines the onset of true labor. A Vector Determination processor (16b) determines a uterine contraction vector having a propagation rate component and a direction component, relative to a plurality of measurement electrodes. The positions of the measurement electrodes are referenced to a coordinate system and are specified to the system through a data entry device (20). A display (18a, 18b) provides a visual or audible indication of labor diagnostic information, the diagnostic information being expressed in a number of formats. The invention also provides for remotely monitoring a pregnant mammal through the use of a communications link (32).
Patent CA-2151137-A1 (CA)
Title: Novel clathrate forming medium and its use in thermal energy storage systems and processes for thermal energy storage and transfer
Inventor: SINGH RAJIV R
IPC: C09K5/04
Filed: 1993-12-06
Abstract: An improved thermal energy storage system and a process for thermal energy storage and transfer are disclosed. The cooling medium, a clathrate forming mixture, comprises water, and a hydrofluorocarbon having at least carbon atoms and a molecular diameter less than about 7 .ANG.. Preferably the hydrofluorocarbon is selected from hydrofluoropropanes and more preferably is selected from the group consisting of CHF2CHFCHF2, CF2HCF2CH2F, CF3CHFCH2F, CF3CH2CF2H, CF3CF2CH3, CF3CHFCF2H, CF3CH2CF3, CF3CF2CF2H, CH2FCF2CF3, CHF2CF2CH3, CF3CF2CF2CH3, CF3CF2CF2CF2H, and CF3CFHCFHCF3.