baber/WOPTO huggingface dataset:
Patent CA-2054820-C (CA)
Title: Analog-to-digital converter circuit with offset correction
Inventor: MUTO HIROYASU
IPC: H03M1/10
Filed: 1991-11-01
Granted: 1996-12-03
Abstract: An offset for an A/D converter circuit is determined as a difference between the average output of the circuit and the sum of an average input analogsignal entering the circuit and an average input bias voltage entering the circuit. Once determined, the offset may be subtracted from each of the data values that is output by the circuit. The offset may instead be used to adjust the bias voltage of input signals to the circuit.
Patent CA-2055483-C (CA)
Title: Polyester chain-extended vinyl ether urethane oligomers
Inventor: LAPIN STEPHEN C
IPC: C08G18/42
Filed: 1990-04-30
Granted: 2001-07-03
Abstract: A vinyl ether oligomer especially useful for coatings is prepared by reacting an hydroxyl-terminated polyester, a diisocya-nate, and a hydroxy monovinyl ether having formulas as defined herein.
Patent CA-2061695-C (CA)
Inventor: DOWELL JAMES STEVEN
IPC: B23D21/12
Filed: 1992-02-25
Granted: 1997-12-23
Abstract: A rod guide remover is provided for splitting rod guides away from a sucker rod without risk of damage to the rod.  A set of opposing blades are used which are kept a selected distance apart by stop members that abruptly contact a set of rod supports for preventing injury to the rod.  The gap distances are selected over a relatively narrow range to insure complete splitting of all types of guides yet provide sufficient tolerance to protect the rod.
Patent CA-2062866-C (CA)
Title: Telescopic manhole and storm drain installation
Inventor: RYAN CHESTER
IPC: E02D29/14
Filed: 1992-03-12
Granted: 1996-02-20
Abstract: A telescopic manhole or storm drain installation includes  a riser assembly provided with an upper section and adjacent  lower section  the  former of which comprises a side wall  defining  an inverted frustoconical configuration while the latter provides  a vertically  disposed member having external  threads  cooperating with a stationary threaded collar.  To prepare for resurfacing of a roadway or the like, no excavation about the riser is  required prior  to its elevation by use of a tool  which  engages  mating receptors located within the interior of the riser.  Rotation  of the  tool  rotates the riser assembly within the threads  of  the collar  until  the new, elevated plane is achieved.  The  effort required to displace the riser is minimal due to the movement  of its  outer surface away from any grouting or roadway base  previ-ously  abutting the riser.  Risers with non-circular  upper  sec-tions and lids are accommodated by forming the riser of  separate upper and lower sections having a sliding joint structure  there-between.  Synthetic polymeric materials are proposed for both the risers and lids having a somewhat similar external  configuration but employing lids provided with a body of substantial height and formed  with  a  dome-shaped bottom surface  such  that  vertical compressive forces are transmitted radially thereby and  conveyed to the surrounding riser side wall.
Patent CA-2067296-C (CA)
Title: Process for bleaching of lignocellulose-containing pulp
Inventor: ANDERSSON LENNART
IPC: D21C9/153
Filed: 1992-04-27
Granted: 1997-03-04
Abstract: The present  invention relates to a process for delig-nification  and  bleaching  of  chemically  digested ligno-cellulose-containing pulp, wherein the pulp is acid treated at a pH of between about 1 and about 6,  whereupon a water-soluble  compound  containing  an  alkaline  earth metal is added at a pH  of between  about 1  and about  7 before the pulp is  treated with  a chlorine-free bleaching agent. The chlorine-free bleaching agent includes  peroxide compounds, ozone, oxygen and sodium dithionite in an optional sequence or mixture. After the treatment according to the invention, the pulp may be finally bleached to the desired brightness, suitably with  a  chlorine-free  bleaching  agent,  such as ozone, to completely avoid formation and discharge of AOX.
Patent CA-2070021-C (CA)
Title: Colour temperature indicator for lubricating grease
Inventor: BLOUIN GILLES
IPC: C10M171/00
Filed: 1992-05-29
Granted: 1998-08-11
Abstract: Lubricating compositions comprising a colour temperature indicator are disclosed.  The compositions irreversibly change their colour when exposed to temperatures exceeding a predetermined limit temperature.  The compositions comprise, as an essential component, from 0.2 to 4% by weight of metal dithiocarbamates or dialkyldithiocarbamates, preferably of antimony and/or lead in combination with a dye, preferably a blue dye, in an amount of from 50 to 2000 ppm.  Other components, such as epoxy resins, may be also present, to increase and/or extend the range of temperatures in which the changes of colour are observed.  The compositions are useful as indicators of overheating of lubricated elements under severe operating conditions.
Patent CA-2070182-C (CA)
Title: Chimeric immunoglobulin for cd4 receptors
Inventor: GHRAYEB JOHN
IPC: C07K16/00
Filed: 1990-12-27
Granted: 2002-12-24
Abstract: Chimeric antibodies for CD4 receptor comprising a variable or antigen binding region of a non-human origin specific for CD4 receptor and a constant region of human origin are disclosed. These antibodies are useful as therapeutic agents for autoim-mune disorders.
Patent CA-2070435-C (CA)
Inventor: PLEMMONS LARRY WAYNE
IPC: F01D25/14
Filed: 1992-06-04
Granted: 2001-07-31
Abstract: A heat shield device for a vane liner in which a first plurality of honeycomb cells which are axially aligned are attached to a first side of the vane liner. A second plurality of honeycomb cells are axially aligned and attached to a second side of the vane liner. The first and second sides of the vane liner are opposite to each other and are provided with cavities which are filled in by the first and second pluralities of honeycomb cells.
Patent CA-2074865-C (CA)
Title: Tribo-attractive contact data storage system
Inventor: BREZOCZKY BLASIUS
IPC: G11B5/255
Filed: 1992-07-29
Granted: 1998-05-05
Abstract: A contact magnetic storage system in which the slider, which supports the magnetic read/write head, is in physical contact with a rigid magnetic storage medium during system operation  at  a  selected  operating  speed.   The slider material has a load versus friction characteristic that is non-linear in the negative load region.  This characteristic allows the slider to be suspended from an access arm with zero  or  negative  external  loading.   In  a  conventional magnetic storage system,  at operating speed the slider is lifted away from the surface of the storage medium by at least the thickness of the air film adjacent the moving storage medium surface.   In the present invention, due to the non-linear load versus friction characteristics of the slider material,  a restoring force is generated at system operating speed which overcomes the lift of the air bearing and maintains the slider in contact with the storage medium surface without substantial wear or damage to either the slider  or  the  storage  medium.   Various  single  crystal, polycrystalline and some amorphous materials have been shown to work in such a contact magnetic storage system.
Patent CA-2075145-C (CA)
Title: Corrosion sensors
Inventor: SMART JOHN DAMIN
IPC: G01N17/02
Filed: 1992-07-31
Granted: 2002-02-05
Abstract: A corrosion sensor (1), apparatus for detecting corrosion of a surface incorporating the sensor, a structural assembly (1,21) incorporating the sensor and method for detecting corrosion of a surface employing the sensor are provided. The sensor comprises a thin flexible non-conducting substrate (18) for attachment to a surface subject to corrosive influence and an array of at least two thin flexible metallic electrodes (2,3,4) carried on the substrate wherein the electrodes are disposed closely adjacent one another so as to permit the generation of electric current by electrochemical action therebetween upon corrosion of the electrodes.      The apparatus comprises one or more of the corrosion sensors (1) each being attachable to the surface so as to be exposed to the same corrosion conditions as the surface and means (6, 8, 10, 12, 14, 16) for measuring corrosion-induced electrochemical activity between the electrodes to provide an output indicative of the corrosion and the method provides a method of use of the apparatus described.
Patent CA-2084242-C (CA)
Inventor: ERICSON RICHARD J
IPC: F16D65/14
Filed: 1992-12-01
Granted: 2000-11-07
Abstract: Movement of an elevator cab drive sheave is controlled by a disc brake assembly which is operably connected to the output shaft and sheave of the elevator drive machine. The disc brake assembly can act as an upward or downward safety brake, and can also serve as the operating brake for normal operation of the elevator.      The brake assembly can be retrofitted onto an existing elevator system, and its operation is not affected by any gear degradation in the machine drive gears.
Patent CA-2092955-C (CA)
Title: Stable blend of ketene dimer size and colloidal silica
Inventor: DASGUPTA SUNIL P
IPC: D21H17/05
Filed: 1993-03-30
Granted: 1999-01-12
Abstract: A composition containing a ketene dimer size for sizing paper that is a stable aquasol of positively charged colloidal silica, positively charged colloidal alumina, or positively charged colloidal zirconia, and also contains the ketene dimer, and a method for sizing a paper product of sheeted cellulosic fibers comprising treating the fibers with the said composition, are disclosed.
Patent CA-2094042-C (CA)
Title: A field containing artificial grass and a device for inserting artificial grass fibres
Inventor: GEERTS JAN FRANS MARIE
IPC: D05C17/02
Filed: 1991-10-15
Granted: 1997-06-03
Abstract: The invention relates to a field containing artificial grass con-sisting of a substructure and a top layer provided thereon, wherein the top layer is a nutrient medium (5) which contains regularly spaced fi-bres (1) which, when seen in the longitudinal direction of the fibre, ex-tend further into the ground than above the ground, with natural grass (2) seeded between the fibres in a nutrient medium (5) on the sub-structure (3). The invention also relates to artificial fibres to be used with a field containing artificial grass wherein the fibres have a length of 20 - 60 cm. The invention further relates to a device for inserting ar-tificial fibres into the ground, said device consisting of one or more planting pins (25), which are disposed perpendicularly to a frame (40), one or more tubes (20) being placed in a sliding frame (41) for supplying the fibres (30) to a location under the planting pin (25).
Patent CA-2095037-C (CA)
Inventor: VEGA JOSE L
IPC: C11D1/28
Filed: 1991-10-21
Granted: 2002-03-19
Abstract: The present invention relates to a process for manufacturing improved color surfactant agglomerates, particularly compris ing methyl ester sulfonates. for use in detergent compositions, said process comprising sulfonation of methyl ester, digestion of the sulfonation product. esterification of said sulfonated product to produce an acid product and agglomeration of said acid pro duct, characterized in that said acid product is exposed to a solid bleaching agent immediately prior to or during agglomeration of said acid product.
Patent CA-2095705-C (CA)
Title: Pocket setter for flat and tubular garments
Inventor: OLEWICZ TADEUSZ A
IPC: D05B41/00
Filed: 1993-05-06
Granted: 1997-04-15
Abstract: An apparatus  for affixing garment parts,  such as pockets to a tubular knit garment body (for example, a T-shirt)  which permits conversion of conventional pocket setting equipment, the apparatus providing means to convert the  tubular  body  essentially  into  a  flat  undistorted garment  surface  prior  to  and  during  the  stitching operation;  followed  by  subsequent  restoration  of  the tubular garment body prior to stacking.
Patent CA-2099166-C (CA)
Inventor: HAIGHT ROBERT EUGENE
IPC: G05G5/04
Filed: 1993-06-25
Granted: 1996-10-22
Abstract: An interface assembly includes a housing having a pair of side walls joined to a curved upper surface and the upper surface forms a fore-and-aft extending slot.  A shaft is supported by and extends between the side walls.  A control member is supported on the shaft and has an outer edge aligned with the slot.  A limit member is mounted on the shaft adjacent to the control member and has an outer edge aligned with the slot.  The limit member is frictionally coupled to the control member.  An stop projects from an outer edge of the limit member.  A lever is pivotally mounted on the control member and is releasable engageable with the stop.  A transducer is coupled to the control member for generating a signal representing the position of the control member.  A thumb wheel and gear may be operated to control rotation of the limit member relative to the housing.  A tab projects into the slot and is engageable and disengageable with the tab to limit rotation of the control member relative to the housing.
Patent CA-2111901-C (CA)
Inventor: EBATA HIROKAZU
IPC: A44B19/26
Filed: 1993-12-20
Granted: 1996-04-30
Abstract: A slider pull tab for slide fasteners has a connecting means formed of a rigid material for connecting a pull tab body of an elastic, flexible material to a slider.  The connecting means has a chamber and a window communicating therewith for fitting engagement with an anchoring member.          A mold material (M) is injection-molded to form the pull tab simultaneously with the formation of an integral joint in the chamber in which the mold material (M) is anchored in place by the anchoring member relative to the connecting means.
Patent CA-2112677-C (CA)
Title: Electrolytic cell assembly and process for production of bromine
Inventor: WILLIAMS RONALD C
IPC: C25B9/17
Filed: 1993-05-04
Granted: 2005-07-05
Abstract: An easily installed, automatically operated sanitizing direct current, electrolytic cell canister assembly and a method of efficiently providing brominated water for swimming pools arid the like, the method including furnishing d.c. power (12) at a constant amperage to the bipolar electrode graphite plate electrolytic cell canister (5), controlling the flow of electrolyte through the canister, turning the d.c. current on and off to provide d.c. on/off switching, turning the d.c. power off, adjusting the time of the on/off switching so that the current is off for a pretedermined selected time in a cycle of about I to 60 seconds, and, just prior to reversing the polarity of the electrodes, turning the power off for about five seconds, with separate polarity changing switching to help efficiently clean the graphite plates (10) and keep the bromine atoms from going back to their ionized state and reduce any power surge due to the reversal of the polarity.
Patent CA-2114165-C (CA)
Title: Communication linkage system for programmable band saw
Inventor: HOLMES JOHN MICHAEL
IPC: B23Q15/00
Filed: 1994-01-25
Granted: 1996-01-16
Abstract: An improved method of automatic sawing employs a programmable automatic saw and a remotely located computer which provides additional control for the saw or a group of saws.  The saw is equipped with a programmable controller that is capable of storing a series of jobs.  The programmable controller allows an operator to run one saw job while contemporaneously programming another saw job.  A third person, such an engineer or supervisor, may be programming an additional job or ranges of jobs for the saw while the operator is running and programming other jobs.          The improved system provides control for a group of saws thereby assisting in the distribution of work flow, enabling efficient use of materials and improving inventory controls.
Patent CA-2120102-C (CA)
Inventor: FERRARA DANIEL A JR
IPC: B65D47/34
Filed: 1994-03-28
Granted: 1997-08-12
Abstract: This injection device comprises a housing having a handgrip for operating it.  A collapsible fluid container is adapted to fit in the housing under the pressure element of the handgrip.          The container has a fill opening with a closure and an injection stem extending out of the housing so that when the handgrip is squeezed, the collapsible fluid container will compress the fluid within it and drive the fluid out through the stem.  Conversely, when the fluid container is compressed, the stem can be submerged in fluid and the handgrip spread to enlarge the container and suck fluid into the container.
Patent CA-2123366-C (CA)
Inventor: MUELLER HEINZ
IPC: B23K35/22
Filed: 1994-05-11
Granted: 1997-08-26
Abstract: To produce an active brazing paste suitable for brazing leads in insulating parts, e.g., ceramic parts, and containing an active brazing powder and an organic material acting as a vehicle, coarse pieces of the active brazing alloy are prehydrogenated. These pieces are ground in a mill with the addition of hydrogen to form a hydrogenated active brazing powder. The latter is then processed with the liquid vehicle openly, under normal atmospheric and temperature conditions, to form the active brazing paste.
Patent CA-2125874-C (CA)
Title: Mass spectrometry method using filtered noise signal
Inventor: KELLEY PAUL E
IPC: H01J49/38
Filed: 1992-11-10
Granted: 2002-06-04
Abstract: A mass spectrometry method in which a trapping field signal (such as a three-dimensional quadrupole trapping field sig-nal or other multipole trapping field signal) set to store ions of interest is superimposed with a notch-filtered broadband ("filtered noise") signal, and ions are formed or injected in the resulting combined field. The filtered noise signal resonates all ions (except selected ones of the ions) from the combined field, so that only selected ones of the ions remain trapped in the combined field. The combined filtered noise and trapping field signal (the "combined signal") is then changed to excite the trapped ions sequen-tially, so that the excited ions can be detected sequentially. The invention can be applied to perform an (MS) n or CI, or combined CI/(MS) n, mass spectrometry operation.
Patent CA-2130475-C (CA)
Inventor: RAINS MICHAEL D
IPC: A61C7/00
Filed: 1994-01-10
Granted: 1995-12-12
Abstract: A disposable dental marking product includes an elongated shaft having a first end representing a gripping area for a user's fingers and a second end directly covered with a composition of marking chemicals.
Patent CA-2132589-C (CA)
Title: Muffler and method for fabricating the same
Inventor: PRESLICKA ALAN JOSEPH
IPC: F01N1/08
Filed: 1994-09-21
Granted: 2005-06-07
Abstract: A vehicular exhaust system muffler including a mechanical lock joint for joining the end tubes to the flow tubes. One end of each end tube has an outer diameter selected such that the one end may be loosely, telescopically and overlappingly fitted within the adjacent end of the adjacent flow tube. The overlapped ends of the end tubes and the flow tubes are mechanically locked together by a circumferential skewed bead formed in the overlapped ends, where the plane of the skewed bead is at an angle less than ninety degrees with respect to the central longitudinal axis of the overlapped ends. This mechanical locking maintains the relative axial positions of the overlapped ends and resists relative movement between the overlapped ends and between the internal panels and the wrapper due to the application of torsional and axial forces that the tubes experience during the assembly of the muffler. The muffler also employs a mechanical lock joint to lock the end tubes within apertures in the end panels of the muffler. The lock joint includes a continuous, circumferential bead formed in the end tube and an annular flange, integral with the end panel, which extends along the end tube and abuts the bead. A series spaced apart, circumferential, aligned elongated deformations are formed in the overlapped portion of the tube and the flange.
Patent CA-2135263-C (CA)
Title: Positive locking mechanism for in-line switch
Inventor: LARICCHIA ROCCO VALENTINO
IPC: H02G1/02
Filed: 1994-11-07
Granted: 2004-05-11
Abstract: An isolating switch has a main sub-assembly which is hung from an overhead power line prior to opposite ends of the isolating switch being permanently connected to the power line.        To retain the sub-assembly on the line prior to the permanent connection being effected two spaced spring loaded keeper bars are provided. Each keeper bar is mounted on a boss which is spaced from another boss to define a groove along which the power line extends. The two bosses for each keeper bar have respective aligned grooves running perpendicularly to the power line. Each keeper bar has two stable positions, a closed position in which the keeper bar lies along the two aligned grooves of the bosses to extend across the wire and an open position in which the keeper bar lies along only the groove of the boss on which the bar is mounted. In this latter position, the keeper bar extends 180° from the first position. The keeper bar may be moved from position to position by engaging an eye in the bar with a hot stick, pulling the keeper bar against a bias spring and rotating the bar about a pivot pin.
Patent CA-2137020-C (CA)
Inventor: LEUMER GERHARD
IPC: D01F6/62
Filed: 1994-11-30
Granted: 2004-02-10
Abstract: Poly(1,4-cyclohexanedimethylene terephthalate) multifilament yarns for technical applications and production thereof Described is a high hydrolysis and aminolysis resistance multifilament yarn composed of a polymer based on poly(1,4-cyclohexanedimethylene terephthalate), wherein at least 85 mol % of the diol-derived groups of the polyester are 1,4-cyclohexanedimethylene groups, characterized by a tenacity of above 40 cN/tex, a dry heat shrinkage S200 of below 10 % and a post hydrolysis or aminolysis treatment strength of at least 85 % of the original strength.      There is also described a process for producing this multifilament yarn by maintaining the temperature of the melt at from 295 to 305 °C, taking off the filaments at a spinning take-off speed of below 1500 m/min, drawing the spun filaments continuously or batchwise in at least two stages using a defined draw ratio and defined temperatures in every stage, and subjecting the drawn filaments to a setting and relaxing treatment at temperatures above 230 °C.
Patent CA-2138161-C (CA)
Title: Glucagon-like peptide and insulinotropin derivatives
Inventor: ANDREWS GLENN C
IPC: A61K38/00
Filed: 1993-04-14
Granted: 2003-10-21
Abstract: This invention relates to derivatives of glucagon-like peptide 1 (GLP-1), truncated GLP-1, insulinotropin and truncated in-sulinotropin which have a pl of about 4.0 or less or a pl of about 7.0 or greater. The derivatives of GLP-1, truncated GLP-1, insu-linotropin and truncated insulinotropin within the scope of this invention are particularly suited for delivery to a mammal by ion-tophoresis. This invention also relates to methods for enhancing insulin action in a mammal with said derivatives and to pharmaceutical compositions comprising said derivatives. Further still, this invention relates to new uses of certain known deriva-tives of insulinotropin and truncated insulinotropin to enhance insulin action in a mammal by iontophoretic administration of such derivatives.
Patent CA-2140041-C (CA)
Title: Stretch wrapping with film severing
Inventor: LANCASTER PATRICK R III
IPC: B65B11/04
Filed: 1995-01-03
Granted: 2000-07-04
Abstract: A load of stretch wrap with a sheet of stretch wrap packaging material by feeding a sheet through a stretch wrap dispenser and stretching and dispensing from the dispenser, and providing relative rotation between the dispenser and the load to wrap the stretched sheet around the load. The portion of the sheet is weakened with a sheet weakening device, and sheet is tensioned to break the sheet at the weakened portion.