baber/WOPTO huggingface dataset:
Patent CA-2055366-C (CA)
Title: Compact extractor
Inventor: MCDOWELL DAVID E
IPC: A47L5/36
Filed: 1991-11-13
Granted: 1994-11-22
Abstract: COMPACT EXTRACTOR               ABSTRACT OF THE DISCLOSURE         The present invention is a surface cleaning liquid extractor for vacuum cleaning a surface.  The extractor has an open top recovery tank, a housing which seats upon the recovery tank and a convenient carrying handle which latches the housing and the recovery tank together.  The extractor also has a floating splash damper positioned within the recovery tank for floating upon the surface of liquid collected in the tank to minimize splashing of the liquid.          The top surface of the floating splash damper includes a domed portion for engaging the suction opening of the extractor and sealing off the suction from the recovery tank when the recovery tank has filled with liquid.
Patent CA-2057783-C (CA)
Inventor: DEL FABRO GIORGIO
IPC: B21D11/12
Filed: 1991-12-17
Granted: 2003-04-22
Abstract: Bending-shaping machine for sections (29) in which a drawing unit (10) located downstream of a bending unit (35) and on the same axis as the section (29) takes up not only a retracted position (10B) and a normal working position (10L) but also a high position (10A) to lift the section (129) above an abutment roll (12).      Method for the automatic bending of the trailing end of sections (29) in a bending-shaping machine as above described, in which so as to invert the orientation of a bend (26) when making bends (26) in the trailing end (C) of a section (129), the drawing unit (10) moves from its working position (10L) to its high position (10A) and returns to its working position (10L) while bending disk is displaced sideways by passing under the section and thus re-positioning the abutment roll in relation to the section.
Patent CA-2057862-C (CA)
Title: Respiratory filter
Inventor: HICKS RICHARD BANFIELD
IPC: A61M16/16
Filed: 1990-05-21
Granted: 2000-11-21
Abstract: A filter for inclusion in a respiratory system used in anaesthesia and patient ventilation, comprises a two-part housing (1S) and (16) having coaxial ports (13) and (14) for connection to breathing tubes. Optionally a heat/moisture exchanger (25) spans the housing in addition to a planar filter member (24) which is held between parts (15) and (16) so as to be perpendicular to the direction of gas flow through the housing. According to the invention deflectors (30) and, (19) are located relative to the ports (13) and (14) so as to spread incoming gases over the opposed surfaces of members (24) and (25) in order to utilise their total surface areas, thereby reducing the overall size of the filter and reducing "apparatus dead space". Each deflector has a through bore so as to utilise also the central area of the filter. Curved fins (26) and (27) radiate from each port (13) and (14). In an alternative embodiment of the invention the housing has two ports at one end, each having an associated deflector, and the fins (26) or (27) are omitted on the housing part having the two ports.
Patent CA-2064801-C (CA)
Title: Solar rechargeable light
Inventor: HUNG KUNG CHI
IPC: F21S9/03
Filed: 1990-08-10
Granted: 2001-01-02
Abstract: A solar rechargeable light (10) has a lamp (18) for illuminating a selected area such as the ground or a wall. A base (16) is adapted to support the lamp in a fixed position to illuminate the selected area. An electrical storage device and power supply (26) is electrically coupled to the lamp. A solar panel (32) is electrically coupled to the electrical storage device far charging the storage device when the solar panel is exposed to light, wherein current from the storage device energizes the lamp, and wherein the solar panel is moveable relative to the base so that the orientation of the solar panel is substantially independent of are orientation of the lamp relative to the selected area.
Patent CA-2065022-C (CA)
Title: Rubella peptides
Inventor: LACROIX MARTIAL
IPC: C07K16/00
Filed: 1990-08-17
Granted: 2001-11-20
Abstract: Linear and cyclic peptides of the E1 and C protein of the rubella virus. These peptides and analogues, mixtures and combi-nations of them are useful in detecting and quantifying antibodies raised against the rubella virus. They are also useful in raising antibodies to the rubella virus for use in the diagnosis of and protection against rubella viral infections.
Patent CA-2072133-C (CA)
Title: Orthotic devices
Inventor: VASYLI PHILLIP JOHN
IPC: A61F5/14
Filed: 1990-11-09
Granted: 2003-07-08
Abstract: A contoured, moldable orthotic device (1) of about three-quarters the length of the boot or shoe in which it is to fit, wherein the device has an integrally-formed heel cup (2), a longitudinal arch "raise"  (3), a metatarsal "raise" (4) and a varus post (.THETA.). The device is placed in the boot or shoe as far back as it will go and then heated. The patient's boot is introduced into the boot or shoe and the now-pliable orthotic device is molded and otherwise manipulated to the foot.
Patent CA-2077273-C (CA)
Title: Language neutral objects
Inventor: CONNER MIKE H
IPC: G06F9/45
Filed: 1992-09-01
Granted: 1996-12-03
Abstract: A method, system and program for redefining language dependent  object  definitions  as  a  neutral  set  of information from which object support for any language, including support between languages,  is disclosed.   The information is parsed and compiled to generate a bindings file which is input along with method information to the target language compiler to create an object file.  The object file is thereafter link edited to create executable programs.  Target languages include C, Fortran, C++, COBOL or  any  other  compiled  language  whether  or  not  the particular  language  has  object  programming  support. Messages are displayed on a display to aid a user.
Patent CA-2081494-C (CA)
Title: Method and apparatus for conform extrusion of powder feed
Inventor: SINHA UDAY K
IPC: B22F3/20
Filed: 1992-12-21
Granted: 2004-09-21
Abstract: Apparatus for continuously extruding powdered, comminuted, or particulated feed material which includes a conform extrusion machine or the like in cooperation with a forming wheel rotatably disposed within a portion of said Conform wheel to compress the feed material into a compacted feedstock. Compressing of the feed material into a compacted feedstock enables uniform and reliable conveyance of the feed material into the extrusion machine. An auxiliary shoe member conforming to the outer periphery of the forming wheel and to the Conform shoe is included to separate the. compacted feedstock from the forming wheel. The auxiliary shoe directs the compacted feedstock into a passageway formed by the Conform machine extrusion wheel and extrusion shoe. As the respective wheels are rotated the forces on the compacted feedstock heat it and cause it to yield and flow through an extrusion chamber adjacent the Conform machine abutment; it is then extruded from a die in the wall of the chamber. A temperature control system in heat exchanging relationship with the chamber in proximity to the die maintains a desired temperature uniformity in the chamber material to provide uniformity of grain size in the extruded product. Temperature control systems may also be provided for the feed material and for metallurgical control of the extruded product.
Patent CA-2082396-C (CA)
Inventor: KENSEY KENNETH
IPC: A61B17/04
Filed: 1991-05-07
Granted: 2002-12-17
Abstract: An instrument (20), a closure (200, 300, 400, 500, 600, 700), and method of use for sealing an opening (26), e.g., a percutaneous incision or puncture, in a living being.        The instrument (20) includes a tubular carrier (32) storing the closure. The carrier (32) has a distally located free end to be extended through the opening (26). The closure (200, 300. 400, 500, 600, 700) comprises an anchoring portion (202, 302), a sealing portion (204, 304) and a thin filament (206) connected therebetween. The instrument (20) is operated to eject the anchoring portion (202, 302) of the closure through the incision or puncture (26) and to then draw that portion against the free end of the carrier (32). The instrument (20) is then withdrawn to pull the anchoring portion (202, 302) of the closure against the tissue contiguous with the incision or puncture. Further withdrawing of the instrument draws the sealing portion (204, 304) of the closure out of the carrier (32), whereupon it moves with respect to the anchoring portion and into engagement with the tissue contiguous with the open-ing on the opposite side of the anchoring portion to seal it.        Signals are produced to indicate proper operation.
Patent CA-2091729-C (CA)
Title: Preparation of vitamin e
Inventor: GRAFEN PAUL
IPC: C07D311/72
Filed: 1993-03-16
Granted: 1999-11-23
Abstract: A process for preparing dl-.alpha.-tocopherol or dl-.alpha.-tocopheryl acetate by acid-catalyzed reaction of 2,3,5-trimethylhydroquinone (TMH) with phytol or isophytol in a solvent at elevated temperature, with or without subsequent esterification of the resulting tocopherol with acetic anhydride, entails the reaction being carried out in the presence of a mixture of ortho-boric acid and certain aliphatic di- or tricarboxylic acids, preferably in the presence of a mixture of ortho-boric acid and oxalic acid.
Patent CA-2092027-C (CA)
Title: Operating mechanism usable with a vacuum interrupter
Inventor: WAINIO RONALD ARVID
IPC: H01H3/50
Filed: 1993-03-19
Granted: 2004-03-16
Abstract: An operating mechanism for producing controlled linear motion includes means for producing a dynamic motive force, and at least one static energy storage means including means for releasing said static energy within controlled parameters to thereby carry out the function requiring said controlled linear motion. The controlled linear motion is utilized e.g. to open and close electrical contacts and to provide a consistent high force required up to and at contact separation. Contact rebound after opening or contact separation is controlled within predetermined parameters.
Patent CA-2092535-C (CA)
Title: Method for manufacturing a soft-cover paperback book, book manufactured according to that method, and a preassembled soft-cover therefor
Inventor: JUKOLA EERO
IPC: B42D3/00
Filed: 1991-09-26
Granted: 1996-08-27
Abstract: In a method of manufacturing a soft-cover paperback book comprising a book block with a plurality of leaves joined at their spine edges, and a soft-cover fastened to the book block, a flexible, firm support layer is glued to the soft-cover in the region of the spine portion of the soft-cover, and thereafter glueing the plurality of leaves to the support layer. The book manufactured according to this method has a front cover and a back cover provided with a scoring line situated between glue stripes at opposite faces of the support layer for improving its lay-open characteristics. In this method, a pre-assembled soft-cover can be used with a support layer fastened thereto.
Patent CA-2096301-C (CA)
Title: Drying hopper and powder drying method using the same
Inventor: ANNEN YOSHIAKI
IPC: B65D88/70
Filed: 1993-05-14
Granted: 2002-06-11
Abstract: Disclosed is a drying hopper comprising, disposed in its lower position, a cone portion having diameters gradually decreasing toward a lower end thereof, in which a high temperature gas is injected toward powder descending in the cone portion to thereby dry the powder, wherein said drying hopper comprises a cone portion 11 having a slant, circular wall, said cone portion 11 having a plurality of vertically spaced rows of nozzles 20, formed through the circular wall, disposed at predetermined intervals in a circumferential direction of the circular wall; a plurality of vertically spaced ring-like shells 21 fluidtightly attached to an external surface of the circular wall of the cone portion 11 with interstices therebetween in positions such that said plurality of rows of nozzles 20 are respectively, at gas inlets thereof, covered by said plurality of ring-like shells 21; and a plurality of gas feed pipes 22 respectively connected to said plurality of ring-like shells 21 in communicating relationship. By virtue of this drying hopper, powder, e.g., polyethylene powder, can be dried to a solvent content as small as 20 ppm by weight or less by low cost, simple operations.
Patent CA-2100422-C (CA)
Inventor: VONDRACEK HANS
IPC: B21F35/00
Filed: 1993-07-13
Granted: 2000-09-26
Abstract: The objects are a reliable and economical method of and device for manufacturing helical springs that are curved when unstressed from sections of wire or rod heated to coiling temperature. The spring is coiled straight and then curved it to its final shape. The device consists of a hot-coiling production line comprising a kiln (1), a series of rollers (2), a coiling bench (4), and a quenching tub (6). A tool (5) for curving helical springs (10 or 14) is integrated into the production line between the coiling bench and the quenching tub.
Patent CA-2101132-C (CA)
Inventor: SUNDELL DAVID ROBERT
IPC: C21B7/06
Filed: 1993-07-22
Granted: 1997-02-04
Abstract: A mix for forming a magnesite-carbon refractory shape comprising from about 70 to 97 wt.% deadburned magnesite and about 3 to 30 wt.% flake graphite, and for each 100 wt.% of said magnesite and graphite, from about 1.5 to 6 wt.% of a carbon-containing bonding agent; said graphite containing from 90 to 99 wt.% carbon and having a lime/silica ratio greater than 0.2 in its ash and said magnesite containing greater than 95 wt.% magnesia, and the  resultant magnesite-carbon refractory  shapes  and liners for metal processing equipment made from such shapes and the method of increasing the life of liners for such equipment.
Patent CA-2105315-C (CA)
Inventor: GLENN JOSEPH G
IPC: B05B7/00
Filed: 1993-09-01
Granted: 1996-10-22
Abstract: A nebulizer which includes a housing having a vertical axis, an open bottom, an air inlet tube extending into the housing and an outlet tube extending from the housing.  A bottom cup is removably attached to the open bottom for storing liquid medication, the bottom cup having an opening therethrough.   Pressurized air is supplied through the bottom cup opening into the housing and a capillary tube extends from the cup to the air supply so that liquid medication will be drawn up through the capillary tube to form droplets.  An axial cylindrical chimney is receivable inside the housing,  the  chimney having  an  annular  flange  extending perpendicularly from the chimney, the flange capable of resting against the housing.  The chimney includes a removable check valve at the top thereof.   A horizontal target extends across the cylindrical chimney, whereby the air supply and liquid droplets will impinge on the horizontal target and impinge on the check valve, the droplets being broken into micron size droplets for delivery to a patient.
Patent CA-2108182-C (CA)
Title: Scale control in gold and silver mining heap leach and mill water circuits using polyether polyamino methylene phosphonates
Inventor: ALFANO NICHOLAS J
IPC: C10J3/84
Filed: 1993-10-12
Granted: 2005-04-05
Abstract: Calcium carbonate scale deposits, occurring in gold and silver mining involving the cyanidation process which utilizes heap and vat leaching, and carbon-in-pulp, carbon-in-leach, particularly activated carbon separation columns; said scale deposits forming on the carbon surfaces and in the emitters and sprinklers of the heap leaching system, are controlled using polyether polyamino methylene phosphonates, which provide effective inhibition despite the severe conditions encountered in these systems, including very high pH's.
Patent CA-2108246-C (CA)
Inventor: NUNES BRENDON G
IPC: G04B19/10
Filed: 1993-10-12
Granted: 1999-07-06
Abstract: A method of producing an instrument face having functional indicia thereon (such as a clock face dial, thermometer face, etc.), allows high quality, multicolor instrument faces to be produced in a cost effective manner even for small runs (e.g. 1-500 units). The instrument face is created in a computer in electronic format, and the computer transmits electronic signals to a color photocopier, to control it to print the instrument face on a sheet of paper. Thesheet of paper may be laminated to a more rigid sheet, e.g. styrene, cardboard, acrylic or plexiglass, and then an instrument face of the appropriate geometric shape and size is cut from the sheet material. The face is assembled with other functional components to produce an operable instrument. The cutting is preferably practiced automatically utilizing a laser cutter under the control of the computer. A scanner or CD ROM may be utilized for inputting data into the computer. A simplified version may be practiced by overlaying a transparency with instrument dial indicia on a color photograph, and color photocopying it, then laminating, cutting, and assembling it into an instrument.
Patent CA-2110831-C (CA)
Inventor: MALICK ADRIEN
IPC: C08L83/04
Filed: 1993-12-07
Granted: 1999-08-24
Abstract: Stabilized microspherical particles having hydrophobic liquid cores prepared as oil-in-water microemulsions. The particles are stabilized by a surface layer comprising an amphiphilic compound and may be functionalized to allow covalent coupling of a ligand to the surface of the particle.      When used as tracers in assays, a water insoluble dye may be incorporated in the core liquid of the microparticles.
Patent CA-2114727-C (CA)
Title: Quinoline derivatives as immunostimulants
Inventor: MOYER MIKEL P
IPC: C07D401/04
Filed: 1992-07-01
Granted: 1996-12-10
Abstract: This invention relates to compounds of formula (I) wherein R1, R2, R3, R4, R4, R6 and R7 are as defined. These com pounds exhibit activity as immunostimulants.
Patent CA-2116097-C (CA)
Title: Ultraviolet blocking polysiloxane resin and process for making the same
Inventor: SCHAEFER JOY M
IPC: C09D5/00
Filed: 1992-06-10
Granted: 2009-02-24
Abstract: A polysiloxane resin composition includes a blend of silanols, colloidal silica, an ultraviolet absorbing material, and a dye for correcting the color of a film formed from the resin composition. The silanols include a silanol from the group having the formula R w Si(OH)x or R y Si(OR')z where (w + x) or (y + z) = 4, and R and R' are organic radicals without any crosslinking sites, and a second silanol from the group having the formula R''Si (OR''')3 where R'' is a hydrogen atom or an organic radical and R''' is an organic radical containing a crosslinking site. The resin may be cured at 420°F. The ultraviolet-absorbing material may be a benzophenone, a benzotriazole, or a benzothiazole. A process for forming the resin composition includes reacting the silanols and the ultraviolet absorbing material under continuous agitation for about six hours.
Patent CA-2118780-C (CA)
Inventor: HARWOOD JON W
IPC: B21D53/84
Filed: 1994-03-10
Granted: 1998-08-18
Abstract: A muffler and a method of manufacturing a muffler are provided. The muffler includes a pair of stamp formed laminated external shells, each of which includes inner and outer layers.          The inner and outer layers are stamped simultaneously to nest with one another.   However, the respective layers of each laminated shell will spring back slightly differently from one another in view of different metallurgical characteristics inherent in each sheet.   The laminated external shells are then disposed around internal components of the muffler, and peripheral regions are securely  clamped  together.    This  clamping,  in  view  of  the differential spring-back creates a narrow air chamber between the layers of each laminated external shell.  Peripheral regions are then laser welded together to hermetically seal the narrow air chamber  between  the  layers  of  each  external  shell.    The hermetically sealed air chamber effectively dampens vibrations of the  external  shells  and  contributes  to  both  heat  and  noise insulation from interior regions of the muffler.
Patent CA-2123417-C (CA)
Inventor: DE NORA VITTORIO
IPC: C25C3/08
Filed: 1992-11-19
Granted: 1999-07-06
Abstract: An electrolysis cell for the production of aluminium by the electrolysis of alum ina dissolved in a molten halide electrolyte, preferably at a temperature below 880 .degree.C, using a multimonopolar arrangem ent of substantially non-consumable anodes (2) and cathodes (1) with facing operative surfaces which are upright or at a slope and are in spaced substantially parallel relationship, enabling operation at low anode current density with an acceptable production pe r unit cell floor area. The operative surface area of the anodes (2) and cathodes (1) is high due to their upright of sloping confi guration. The operative surfaces of the anodes (2) and possibly of the cathodes (1) can be increased by making them porous, prefera bly with a reticulated skeletal structure, e.g. with a porous active part (13) on opposite faces of a central current feeder (12). Th ere is an upward circulation of electrolyte by gas lift between the electrodes, there being electrolyte circulation guide means such as spacers (5) adjacent the edges of the facing anodes (2) and cathodes (1).
Patent CA-2125561-C (CA)
Inventor: CHECK JOSEPH ALOYSIUS III
IPC: C25D1/04
Filed: 1992-10-22
Granted: 2003-01-28
Abstract: A film (24) suitable for use as the light modulating unit of a light valve (27) comprises a cross-linked polymer matrix hav-ing droplets (26) of liquid light valve suspension distributed in the cross-linked polymer matrix, and a light valve comprising such a film.
Patent CA-2132591-C (CA)
Title: Bathtub having handles on which tub operation elements are mounted
Inventor: COLUSSI LUCIO
IPC: A61H33/00
Filed: 1994-09-21
Granted: 1999-01-05
Abstract: A bathtub, in particular a whirlpool bath, includes a pair of handles for aiding one into and out of the tub body, and control and actuation elements, as well as water delivery elements mounted to the handles.  These elements include an actuator for actuating the plug provided to stop up the drain, an actuator in the form of a control valve for mixing hot water with cold water so as to achieve a single flow of water at a desired temperature, a hand-shower, an actuator to divert water to an extractable nozzle of the hand-shower, a control element for starting and stopping the operation of a water circulating pump and an air blowing pump of the whirlpool bath, a plug of a reservoir for liquid disinfectant, and a switch to actuate a valve which admits the liquid disinfectant into a water circulation circuit of the tub.  One of the handles which accommodates the extractable hand-shower also includes another water delivery element in the form of a water outlet through which water cascades into the tub body.  The handles are provided at the two upper edges of the opposing longitudinal sides of the tub body.  These handles each include a narrow portion sized to be seized by a user of the tub, and a second portion in the form of a housing having a wider profile to which the control, actuation and water delivery elements are mounted.
Patent CA-2135876-C (CA)
Inventor: HOLFELD WINFRIED T
IPC: D06P3/14
Filed: 1993-05-13
Granted: 2003-09-23
Abstract: A process for the dyeing of a fibrous article containing wool with an anionic dye and products produced thereby. The pro-cess includes immersing the article in a dyeing bath of a liquid solvent for the anionic dye. The liquid solvent and the article are heated to a temperature at least equal to the dyeing transition temperature.  At least a portion of the dye is added as a miscible liquid concentrate while the solvent and the article are up to temperature.  Stirring of the bath during the dye addition period and while the solvent and article are up to temperature is done to mix the dye concentrate with the solvent to form a dilute dye solu-tion and to provide a flow of the dilute dye solution relative to the article to cause, on the average, essentially uniform dye trans-port of the anionic dye to the article. The dye addition rate is adjusted so that the dye addition rate is the primary control over the rate of dye uptake by the article.