baber/WOPTO huggingface dataset:
Patent CA-2026374-C (CA)
Title: Recovery of ida and glauber's salt from waste crystal liquors
Inventor: THUNBERG JON C
IPC: C01D5/00
Filed: 1990-09-27
Granted: 2002-07-09
Abstract: The separation and recovery of iminodiacetic acid and sodium sulfate decahydrate from sodium sulfate solutions such as the liquor generated in the production of iminodiacetic acid are disclosed. The separation is accomplished by adjusting the temperature of the sodium sulfate solutions to crystallize the iminodiacetic acid and sodium sulfate decahydrate. Nitrilotriacetic acid optionally can be isolated prior to the crystallization of the IDA and sodium sulfate decahydrate.
Patent CA-2026441-C (CA)
Inventor: EDLER BERND
IPC: G10L19/022
Filed: 1990-01-26
Granted: 1994-10-11
Abstract: A method of transmitting a signal wherein the signal is segmented by means of windows into successive overlapping blocks, the partial signals contained in the blocks are converted by transformation into a spectrum, with the spectra then being coded, transmitted, decoded after transmission and converted back into partial signals by retransformation.  Finally, the blocks containing the partial signals are joined in an overlapping manner, with the overlapping regions of the blocks being weighted such that the resultant of the window functions in the respective overlapped regions equals one.  In order to avoid interferences in adjacent blocks upon changes in the signal amplitude, the length of the window functions is selected as a function of signal amplitude changes.  The method is suitable for the treatment of audio and video signals which are subjected to data reduction during transmission.
Patent CA-2032600-C (CA)
Title: Fraud detection in postage meter having unsecured print whells
Inventor: SALAZAR EDILBERTO I
IPC: G07B17/00
Filed: 1990-12-18
Granted: 1994-01-25
Abstract: ABSTRACT OF THE DISCLOSURE       A postage meter is disclosed which determines whether postage was printed while power to the meter was off, and if so accounts for such postage printing.  The postage meter also determines whether such printing resulted from tampering, and if so records each instance of such tampering.  When the number of instances exceeds a predetermined number, the meter prevents fur-ther normal operation thereof.  The postage meter is provided structure and programming to accomplish the foregoing because it does not include a print device locking mechanism that locks the print devices when power to the meter is switched off.  The postage meter determines print cycles of the postage meter occur-ring when power to the meter is switched off and whether the print devices were moved to a different postage value setting when the meter was off, and if so, the new setting of the print devices.  From that, the postage meter determines whether postage was printed while power to the meter was switched off, and if so, accounts for the postage printed.
Patent CA-2039652-C (CA)
Title: Hardcopy lossless data storage and communications for electronic document processing systems
Inventor: ZDYBEL FRANK JR
IPC: G06Q10/10
Filed: 1991-04-03
Granted: 1996-12-24
Abstract: Provision is made in electronic document processing systems for printing complete or partial, compressed or uncompressed machine readable digital representations of electronic source documents and human readable renderings of such source documents on the same recording media through the use of the same printing system. This integration of human readable renderings with machine readable representations of the electronic source documents upon which the renderings are based increases the precision of the information transfer that occurs when information is being transferred from the hardcopy domain to the electronic domain.
Patent CA-2039804-C (CA)
Title: Sample packet newspaper insert
Inventor: DOLAN COLLEEN H
IPC: B42D7/00
Filed: 1991-04-04
Granted: 2003-01-07
Abstract: Packaging for product samples and the like that is suitable for insertion into newspaper publications with standard automatic insertion machinery and provides non-bulging product sample protection when inserted into a newspaper publication to prevent "footballing" of newspaper stacks.
Patent CA-2043550-C (CA)
Title: Video signal decoder
Inventor: MATSUNAGA OSAMU
IPC: H04N19/423
Filed: 1991-05-30
Granted: 2001-08-14
Abstract: A MUSE-format video signal decoder comprising a first frame memory supplied with an input digital video signal and having a delay time of 1-frame period; a 1-frame difference detector including a first interpolation filter supplied with the input digital video signal, a second interpolation filter supplied with the digital video signal from the first frame memory, a first subtracter for obtaining the difference between the outputs of the first filer and the first frame memory, and a second subtracter for obtaining the difference between the input digital video signal and the output of the second filter, wherein a 1-frame difference signal is produced in accordance with the outputs of the first and second subtracters; and a 2-frame difference detector including first and second bit compressors supplied with the outputs of the first and second subtracters respectively, a second frame memory having a delay time of 1-frame period and supplied with outputs of the first and second bit compressors, and an adder for obtaining the sum of the other outputs of the first and second bit compressors and the output of the second frame memory, wherein a 2-frame difference signal is produced in accordance with the output of the adder.     Due to such constitution, the capacity of each frame memory can be reduced.
Patent CA-2046968-C (CA)
Inventor: YASUHARA NAE
IPC: G06F3/0489
Filed: 1991-07-12
Granted: 2001-04-10
Abstract: A graphic image processing apparatus comprises a character pattern selecting device for selecting a predetermined character pattern, a color selecting device for selecting predetermined color data corresponding to the character pattern, a display device for displaying the character pattern, an operating device for moving a cursor on the display device, a first memory for storing data corresponding to the character pattern and color information and reading it out, a second memory for storing display data which are displayed on the display device, a control device for changing the cursor to the character pattern by operating the character pattern selecting device, and an executing device for fixing the character pattern in the second memory so as to display a desired position which is decided by the user by operating the operating device.
Patent CA-2047208-C (CA)
Title: Carte de donnees optique effacable format de poche
Inventor: DREXLER JEROME
IPC: G07C9/00
Filed: 1990-02-23
Granted: 1997-12-30
Abstract: L'invention est une carte de données optique effaçable de format portefeuille (11) utilisant une bande d'enregistrement effaçable (15) sur laquelle des données (35, 36, 39, 41) peuvent être enregistrées au moyen d'un laser. Cette carte de données (11) contient également des informations préenregistrées stockées en permanence sous la forme de contours de surface (12) ou de marques photographiques (43, 45). Les informations préenregistrées sont enregistrées soit au-dessus, soit directement en dessous de la bande d'enregistrement effaçable (15), dans une couche protectrice transparente (19), une sous-couche de polymère (14) ou un substrat de carte de plastique (13, 131). Les deux ensembles de données, celles qui sont enregistrées au moyen d'un laser et celles qui sont préenregistrées, peuvent être lus et visualisés simultanément sans se nuire l'un l'autre. Le matériau effaçable utilisé dans la bande d'enregistrement effaçable (15) peut être un matériau magnéto-optique, un matériau cristallin amorphe ou un matériau à cristaux liquides, ou un matériau à transition métal-isolant.
Patent CA-2052959-C (CA)
Title: Fluid dispenser - container mounting system
Inventor: HANNA EMMANUEL AZIZ
IPC: A47K5/12
Filed: 1991-10-08
Granted: 1997-12-23
Abstract: In the preferred embodiment, a fluid dispenser having a container, a mounting bracket, a latch and a lid.  The container and bracket have first interengaging members for supporting the container  on  the bracket  and  second  interengaging members  for maintaining the container on the bracket, the lid and bracket have third interengaging members for pivotally mounting the lid on the bracket with pivot pins on the lid and pivot slots on the bracket for forward movement and upward pivoting of the lid relative to the  bracket  and container.  The  lid  and  container have  fourth interengaging members for holding the lid in a closed position on the container, and the lid and bracket have fifth interengaging members  for maintaining the  lid in the closed position on the container when the latch is in the latched position.  The latch preferably  is  formed  integral  with  the  bracket  as  a  single component.  An alternative embodiment with a pivoted cover for the container.
Patent CA-2055734-C (CA)
Title: Credit card transaction form set
Inventor: MCCARTNEY LARRY G
IPC: B42D15/00
Filed: 1991-11-18
Granted: 2001-02-27
Abstract: A credit card transaction form set provides a customer copy form which is attached to any and all carbon sheets in the set in a readily detachable manner so that the complete carbon sheets can be removed from the customer copy if desired. The customer copy overlays a bottom, OCR bond form, and preferably is a CF carbonless sheet. The set may be either three part or four part, with the top form a CB carbonless sheet, and the fourth part -- if provided -- a CFB carbonless sheet. A S/F carbon sheet disposed between the customer copy and the OCR bond is attached to the customer copy by permanent adhesive adjacent an edge of the customer copy opposite its attachment to the other forms of the set, and the customer copy is connected by perforations to the carbon sheet.
Patent CA-2058066-C (CA)
Title: Optical scanner with extended depth of focus
Inventor: METLITSKY BORIS
IPC: G06K7/015
Filed: 1991-12-19
Granted: 2002-05-21
Abstract: An optical bar code scanner and method which achieves an extended depth of focus by employing a multifocal length collection optical system. A radiation beam is generated for illuminating a field of view, either by a laser or nonlaser source. The embodiments specifi-cally disclosed herein employ nonlaser sources such as LEDs. The multifocal length collection optical system, having at least a near range focal length and a long range focal length, collects radiation reflected from objects in the field of view, and directs it to an optical detector for detection and generation of an electrical output signal indicative thereof. The electrical output signal of the detector is then passed through a high pass filter which filters out a DC background electrical signal, thereby improving the depth of modulation of the signal, and the electrical output signal is directed to electrical processing and decoding circuits. In a first embodiment, the radiation beam is generated by a linear array of light emitting diodes, and the multifocal optical system includes two different lenses, each having a different focal length.    The optical detector includes a charge coupled detector having a plurality of charge coupled detection cells, and the field of view is scanned by scanning the electrical outputs of the plurality of charge coupled detection cells.    In a second embodiment, the field of view is scanned with an oscillating scanning mirror, and the multifocal optical system includes a first detection mirror having a near range focal length, and a second detection mirror having a far range focal length.
Patent CA-2058873-C (CA)
Title: Variable rate pacemaker having upper rate limit governor based on hemodynamic performance
Inventor: WARREN JAY A
IPC: A61N1/365
Filed: 1992-01-07
Granted: 1998-10-27
Abstract: A rate adaptive pacemaker of the type having a variable rate cardiac stimulating pulse generator and a sensor for monitoring some physiologic parameter whereby the pulse generator stimulating rate can be adjusted to meet physiologic demand is further provided with a hemodynamic sensor which is operative to provide an output signal  representing  the  pumping  performance  of  the  heart  in response  to  the  pacing  stimulation.    The  signal  from  the hemodynamic sensor is processed and then used in an algorithm to determine whether further rate increase should be permitted based upon whether the rate increase would be accompanied by a further increase in cardiac output, a plateau or a decrease in cardiac output.   Hence, the adaptive rate pacemaker is provided with a real-time,  hemodynamic maximum pacing rate  instead of a pre-programmed, fixed, maximum rate.
Patent CA-2061321-C (CA)
Title: Apparatus for locking a valve actuating member
Inventor: LAND MICHAEL CHARLES
IPC: F16K35/10
Filed: 1992-02-17
Granted: 2002-04-23
Abstract: An apparatus for locking a valve actuating member of a fluid control valve may be used to lock the valve in a closed position. The apparatus is for use with a valve wherein the valve has a valve body and wherein the valve actuating member has a top surface and open and closed positions. The apparatus includes a top portion having a limiting surface for limiting upward movement of the valve actuating member relative to the valve body and gripping means extending from the top portion for gripping the valve body. The gripping means is at a fixed distance from the limiting surface such that the limiting surface is immediately adjacent the top surface of the valve actuating member when the valve actuating member is in the fully closed position and the apparatus is installed.
Patent CA-2062435-C (CA)
Title: Method for purifying hydrogen peroxide for microelectronics uses
Inventor: HONIG HELMUT
IPC: C01B15/013
Filed: 1992-03-06
Granted: 2002-01-08
Abstract: A method for further purifying previously distilled hydrogen peroxide for use in microelectronics in which a hydrogen peroxide starting solution purified initially by distillation is contacted, after the addition of a small amount of chelating agent, with a non-ion-exchanging, polymeric adsorbent, such as a styrene-divinylbenzene copolymer, to obtain a highly purified hydrogen peroxide solution which satisfies the stringent purity requirements for use in producing 4-megabit and 16-megabit microprocessor chips.
Patent CA-2083441-C (CA)
Title: Conduit adapter assembly
Inventor: DEBARTOLO JOSEPH V JR
IPC: H02G3/06
Filed: 1992-11-20
Granted: 2002-12-24
Abstract: A conduit adapter assembly for a surface mounted duct system. The conduit adapter assembly includes a base adapted to be attached to a surface of a wall, and a cover which snap fits onto the base. The base has punch-outs to provide access to the interior of the conduit adapter assembly for feeding a conduit therein. Twist-out portions are provided in the cover to receive surface-mounted ducts or raceways which are mounted on the ceiling. An end wall of the cover is provided with an opening to receive a run of duct or raceway of a particular size which is mounted on the wall. The end wall is detachable from the rest of the cover to form a larger opening for receiving a larger size duct or raceway.
Patent CA-2084261-C (CA)
Title: Method for filling particulate material into tubes
Inventor: RYNTVEIT GUNNE
IPC: B01J8/06
Filed: 1992-12-01
Granted: 2000-02-15
Abstract: The present invention relates to a method for filling particulate material into vertical tubes. The particles are conveyed down into the tube along a line with a series of damper means arranged substantially transversely to the line and having a radial extension less than the tube's inner diameter. The line is pulled up gradually as the tube is filled with particles. The damper means can be in the form of brushes so flexible that they give gradually when the particles fall down on them. A wire can be used as the line, to which is fastened a series of substantially equidistant transversely extending brushes, preferably consisting of springs.
Patent CA-2086791-C (CA)
Title: Ceramic igniters and process for making same
Inventor: AXELSON SCOTT R
IPC: B28B3/00
Filed: 1993-01-06
Granted: 1996-11-05
Abstract: A process for producing a ceramic igniter comprising forming a slot in a green igniter body prior to densification and inserting into the slot an electrically non-conductive material is described.   In addition, a ceramic igniter containing a slot insert produced by the process of the invention is disclosed.   The invention is particularly directed to single and double hairpin-shaped igniters.
Patent CA-2092946-C (CA)
Title: Three-level three-phase inverter apparatus
Inventor: KOYAMA MASATO
IPC: H02M7/483
Filed: 1993-03-30
Granted: 1997-10-07
Abstract: A three level three-phase inverter apparatus operating on a proposed pulse width modulation method whereby good output voltages are obtained free of the effects of the minimum pulse width constraints of switching devices and whereby the neutral point voltage is controlled. The apparatus has a modulation circuit containing a microprocessor and a voltage vector selection circuit. The microprocessor divides one period into six segments of 60 degrees each. Each segment is divided into four triangular regions each determined by the vertexes of voltage vectors. An output voltage command is given as a vector. Once the segment and region to which a given vector belongs are determined, the voltage vectors corresponding to that region and the order is which to output these vectors are derived from the predetermined vector combinations and their output orders stored beforehand in the voltage vector selection circuit. Each vector output order is arranged so that one voltage vector is replaced by another through a switching operation of any one phase. The time average of these consecutively output voltage vectors in a given carrier period is modulated to coincide with the value of the command vector. This scheme provides good output voltage waveforms while controlling the neutral point voltage.
Patent CA-2095394-C (CA)
Title: Paper remoistening apparatus
Inventor: GRANDJEAN ALAIN J
IPC: D21G7/00
Filed: 1993-05-03
Granted: 2004-04-06
Abstract: The present invention relates to a paper remoistening apparatus of the type comprising means for driving a strip of paper along a predetermined path within an enclosure, into which nozzles for spraying a moistening mist open. According to the invention, the enclosure is sealed and communicates at a place remote from the spray nozzles with the inlet of a suction device having its outlet opening outside the enclosure. Said suction device comprises preferably a fan communicating with the enclosure through a droplet separator. The apparatus is intended to be used particularly in printing lines for newspapers or the like, for remoistening printed paper at the outlet of the drier.
Patent CA-2101966-C (CA)
Inventor: SHIMIZU YUZO
IPC: B66C19/00
Filed: 1993-08-05
Granted: 1999-02-23
Abstract: ABSTRACT      An apparatus and method for providing a boom extension for retractable booms of gantry cranes which does not require lowering the boom during attachment of the extension,  or increasing the lift capacity of the boom hoist machinery, nor does the boom extension add bending moment to the retractable boom.
Patent CA-2114581-C (CA)
Inventor: WYSER JOHANN
IPC: A41C3/14
Filed: 1994-01-31
Granted: 2001-07-03
Abstract: A valve assembly for venting diecasting moulds comprises a venting channel means, a venting valve communicating with the venting channel arid having an axially displaceable valve closure member, and an actuating member for operating the venting valve from an open position into a closed position. The actuating mem-ber includes a power pick up member exposed to the liquid cast-ing material escaping during the casting operation from a cast-ing chamber provided in the diecasting mould through the venting channel and being axially displaceable under the influence of the kinetic energy transmitted from the liquid casting material to the power pick up member when the liquid casting material hits the power pick up member. The power pick up member is me-chanically coupled to the axially displaceable valve closure member and includes an axially displaceable push member having an operating stroke whose length is limited to only a fraction of the length of the stroke performed by the axially displace-able valve closure member when it is driven from its open posi-tion to its closed position. The axially displaceable valve clo-sure member freely moves along a path in addition to the operat-ing stroke of the power pick up member. The actuating member further comprises a power transmission member for the transmis-sion of the impact force exerted by the liquid casting material onto the power pick up member to the axially displaceable valve closure member of the venting valve.
Patent CA-2118078-C (CA)
Title: Curatives for phenolic novolacs
Inventor: GERBER ARTHUR HARRY
IPC: C08L61/28
Filed: 1994-10-13
Granted: 2002-02-26
Abstract: A binder composition of a phenolic novolac resin and a (lower) alkoxylated triazine-formaldehyde resin curing agent is disclosed.      The triazine resins have sufficient carbon atoms in the alkoxy groups so as to provide a curing agent having a water solubility of less than 15%. The binder cures at high temperatures so as to provide improved flow and prolonged workability to the composition.      The compositions are useful in refractory applications having a need for high temperature curing agents such as for maintenance and repair within refractory vessels by gunning/spraying, manufacture of electrodes by the Soderberg method, and for use in blast furnace tap holes.
Patent CA-2120283-C (CA)
Title: Down-hole gas separator
Inventor: HEINRICHS BERNARD
IPC: E21B43/12
Filed: 1994-03-30
Granted: 2004-05-18
Abstract: A down-hole gas separator for a pump provides for the pumping of liquids from the lower portion of an inclined or horizontal passageway.      The separator includes a nozzle for connecting to a pump inlet. The nozzle has an inlet and an outlet. The nozzle outlet is connected to the pump inlet. The separator is provided with means to cause the nozzle inlet to seek a lowermost position.
Patent CA-2123601-C (CA)
Title: Syringe
Inventor: REYNOLDS DAVID L
IPC: A61M5/145
Filed: 1992-11-13
Granted: 2003-06-10
Abstract: A prefilled syringe system is provided for two component pharmaceuticals, which is a combination of a first subassembly consisting of a capped bottomless pharmaceutical vial (2) containing a first component and closed at its bottom end by a piston (32) which can be connected to a plunger (16) and a second subassem-bly (3) consisting of a shell (4) containing a second component and closed by a fur-ther piston (6) and located in telescopable relationship with the plunger, a cap (18) which can be forced onto the cap (36) of the bottomless vial, and a double ended noodle (320) or a functionally equivalent cannula assembly which is caused to pierce both pistons as the assemblies are connected by forcing the cap (18) onto the bottomless vial, thus placing the vials in communication. The shell vial (4) is pressed towards the bottomless vial (2) to express its contents into the latter, and the plunger (16) and shell vial {4) are then removed so that the cap (18) and needle (20) are left connected to the bottomless vial (2) and the plunger (16) may be con-nected to the piston (32) of the bottomless vial to convert it into a syringe.  The shell vial may telescope either over or within the plunger. In the first case, the plunger ads to operate the piston of the shell vial during expression of its contents, whereas in the latter case a separate component (8) is required for this purpose.