baber/WOPTO huggingface dataset:
Patent CA-2017086-C (CA)
Inventor: BICHEL JOACHIM
IPC: B21D53/26
Filed: 1990-05-17
Granted: 1998-11-10
Abstract: Method of manufacturing a belt pulley from a metal disk, e.g. a multiple-V-belt pulley, toothed belt pulley, flat belt pulley, etc., having a hub and an area that is provided with a profile which is basically hollow cylindrical and has a smooth or crowned outside.  In a first operational step the metal disk is given a wave-like profile in its circumferential area and in following operational steps the respective final profile is completed.  Known methods require numerous operation steps and a great force input to carry out the forming. Applicants' method permits high-quality belt pulleys to be manufactured from metal disks at a comparatively low amount of labor and cost involved in the working of the method.  Applicants' method in a second operational step, rolls the wave-like profiled circumferential area (11) of the metal disk (1) to be have a wave-like cross section with one wave maximum (12, 12") at each edge pointing radially toward the outside and a wave minimum (13, 13") laterally adjacent at the inside so that a wave-like contour is obtained with an optimum material distribution for further machining.
Patent CA-2022730-C (CA)
Title: Use of diphenyl ether derivatives for the desiccation and abscission of plant organs
Inventor: WUERZER BRUNO
IPC: A01N33/18
Filed: 1990-08-06
Granted: 2000-10-03
Abstract: The use of diphenyl ether derivatives of the general formula I (see formula I) where A is a radical (see formula II, III or IV) where R1 is hydrogen, an alkali metal or alkaline earth metal ion, substituted or unsubstituted ammonium, alkyl of from 1 to 4 carbon atoms or alkoxycarbonylalkyl of a total of 1 to 6 carbon atoms and R2 is alkyl of from 1 to 4 carbon atoms, for the desiccation and abscission of plant organs.
Patent CA-2023000-C (CA)
Title: Powder coating system with dew point detection and configurable controller therefor
Inventor: GIMBEN DALE N
IPC: B05B7/14
Filed: 1990-08-09
Granted: 2000-07-18
Abstract: A powder spray coating system has a controller configurable to a variety of different system configurations. Configuration data is keyed by an operator from menu prompts and stored for use by a microprocessor based operating program to operate the supply of powder and air to a powder spray gun. The microprocessor also presents information from monitored parameters of the system, including the supply air dew point which is monitored to provide warning signals of potential condensation in the system. Dew point detection is accomplished by measuring temperature and relative humidity and comparing the measurements with values for air at the maximum acceptable dew point.      Alternatively, measurement of absolute humidity and supply air pressure are used to compute the dew point of the air which is compared with the actual temperature and maximum dew point temperature.
Patent CA-2023408-C (CA)
Title: Particle screening system
Inventor: ASKEW TERRY
IPC: E04C2/42
Filed: 1990-08-16
Granted: 2001-03-13
Abstract: A modular industrial screen system comprising a number of screen panel modules (1) supported side-by-side, and/or end-to-end by a supporting structure assembly (2).      The supporting structure assembly (2) comprises a number of support bars (3) arranged to support peripheral portions (4) of each screen panel module (1) by way of rail members (6,6').      Rail members (6,6') comprise protrusions (12) designed to mate with recesses (14) by means of snap-engagement of lip (13) with groove (15).
Patent CA-2025332-C (CA)
Title: Metal complex compounds, process for preparation and method of use
Inventor: NEITHAMER DAVID R
IPC: C07F17/00
Filed: 1990-09-13
Granted: 2001-12-04
Abstract: A monocyclopentadienyl or substituted monocyclopentadienyl metal complex containing compound useful as an addition polymerization catalyst corresponds to the formula:      CpMX n+ A-wherein:      Cp is a single ~5-cyclopentadienyl or ~5-substituted cyclopentadienyl group optionally covalently banded to M through a substituent;      M is a metal of Group 3-10 or the Lanthanide Series of the Periodic Table bound in an ~5 bonding mode to the cyclopentadienyl or substituted cyclopentadienyl group;      X each occurrence is hydride or a moiety selected from halo, alkyl, aryl, silyl, germyl, aryloxy, alkoxy, amide, siloxy, and combinations thereof having up to 20 non-hydrogen atoms, neutral Lewis base ligands having up to 20 non-hydrogen atoms; or optionally one X together with Cp forms a metallocycle of up to 20 non-hydrogen atoms with M; n is 1 or 2 depending on the valence of M; and A- is a noncoordinating, compatible anion of a Bronsted acid salt.
Patent CA-2029770-C (CA)
Title: Pseudoplastic yellow mustard gum
Inventor: SHARAFABADI SOHEIL K
IPC: A23L27/18
Filed: 1990-11-13
Granted: 2005-03-15
Abstract: An improved process of gum extraction from whole yellow mustard seed is described. The process is time temperature interdependent. In a first step the seed is treated in water, preferably at elevated temperature, the extract is then separated, preferably mechanically, more preferably by a perforated centrifuge, or even more preferably by a slitted centrifuge. The aqueous extract on precipitation and drying gives a gum with pseudoplastic properties similar to those of xanthan gum. The extraction using mechanical separation, especially by a perforated bowl centrifuge, which can be slitted, is suitable for industrial scale extraction of the yellow mustard seed. A centrifuge adapted for juice extraction is suitable. The gum produced under these conditions exhibits unique properties dramatically different from those reported from other previous processes, in both composition and viscosities.
Patent CA-2036220-C (CA)
Title: Process for the preparation of 1,1,1,3,3,3-hexafluoropropane and 2-chloro-1,1,1,3,3,3-hexafluoropropane
Inventor: GASSEN KARL-RUDOLF
IPC: C07C17/00
Filed: 1991-02-12
Granted: 1999-08-03
Abstract: Hexafluoropropanes of the formula CF3-CHX-CF3 where X is hydxogen or chlorine are prepared by reacting hexachloropropene with hydrogen fluoride in the gas phase in the presence of a catalyst.
Patent CA-2039101-C (CA)
Title: Single layer fabric for paper making on which plane surfaces of auxiliary weft threads have been formed
Inventor: TATE TAKUO
IPC: D03D13/00
Filed: 1991-03-26
Granted: 1995-06-27
Abstract: In a single-layer paper making woven fabric of more than five shafts, auxiliary wefts each having a smaller diameter than that of the primary wefts are disposed between each of the primary wefts.  Each of the auxiliary wefts is woven twice into a repeating unit of a texture by a warp.  Each auxiliary weft is placed by at least two other warps extending above two adjacent primary wefts.  The auxiliary wefts are pushed or urged upwardly thereof by these at least two other warps in order to form a flat paper making surface of the fabric, whereby wire marks on a paper are reduced.
Patent CA-2048196-C (CA)
Title: Contact lens casting
Inventor: EVANS JOHN M
IPC: G02C7/04
Filed: 1991-07-31
Granted: 2001-03-20
Abstract: Hydrophobic casting moulds are treated with electrical discharge, such as corona discharge, to provide enhanced compatibility with hydrophilic objects introduced into the mould, without interfering with the release properties of the mould. A preferred embodiment involves treatment of contact lens casting moulds with corona discharge to provide improvements in the lens manufacturing procedure, as well as enhancement in the quality of the contact lenses themselves.      The invention is particularly applicable to the production of contact lenses having a coloured iris pattern imprinted thereon.
Patent CA-2056907-C (CA)
Title: Dock leveler lip actuation mechanism
Inventor: ALEXANDER JAMES C
IPC: B65G69/28
Filed: 1991-12-04
Granted: 2003-02-04
Abstract: A dock leveler having an operative lever arm assembly to assist in raising the lip by spring action. The assembly comprises a latch arm which selectively engages a series of spaced stop positions on the underside of the deck to support the lip in an outward position should it not fully extend during the raising of the deck. A hydraulic shock absorber is adapted to be coupled to the lever assembly at a variety of spaced mounting points on the lever assembly.
Patent CA-2059529-C (CA)
Title: Treatment of fibrous materials
Inventor: STREET PETER C R
IPC: D21H17/62
Filed: 1990-07-30
Granted: 2001-11-27
Abstract: A method of providing a mixture of additives in an aqueous suspension of fibres to be used for the manufacture of paper, the method comprises providing within the suspension a localized zone of a freshly prepared mixture of discrete liquid streams of the additives, and causing the freshly prepared mixture to be dispersed within the suspension. The additive streams may be of a rosin emulsion and an aluminium salt solution.
Patent CA-2061217-C (CA)
Title: Lined pipe joint and seal
Inventor: WERNER ROBERT MICHAEL
IPC: F16L58/18
Filed: 1992-02-14
Granted: 2005-08-02
Abstract: A lined pipe joint with an improved collar seal and pipe lining end therefor. The pipe lining end is disposed at the end of the liner in the pipe. The lining end is adapted to shoulder against grouting material which holds the liner in place such that longitudinal contraction of the liner is prevented. The lining end also has a tapered bare therein which compensates for any inward deflection of the pipe section when threadingly engaged with a pipe fitting. The collar seal fits within the end of a pipe section which is to be connected to a pipe fitting. A sealing check valve on the collar seal provides sealing between the collar seal and the pipe section when pressure within the pipe section is greater than pressure outside the collar seal. The sealing check valve allows relief of pressure outside the collar seal into the pipe section when the pipe section is depressurized, so that damaging inward deflection of the pipe liner is prevented. A method of assembling the pipe joint is also disclosed.
Patent CA-2061823-C (CA)
Title: Strut assemblies
Inventor: WEST CHRISTOPHER NOEL
IPC: F16F1/366
Filed: 1992-02-25
Granted: 2001-12-25
Abstract: A strut assembly includes an axially elastically extensible tube having attachment means at each end and an axially extensible actuator attached within the tube and between its ends so that reciprocal axial extensions of the actuator cause elastic longitudinal displacements of the strut assembly. Such a strut assembly is particularly useful for transmitting operational loads between parts of a structure and for inputting periodic loads into one of the parts as part of an active vibration control system.
Patent CA-2063117-C (CA)
Title: Method of producing products from rubber compositions
Inventor: KUC JOHN SR
IPC: B29B7/00
Filed: 1992-03-16
Granted: 2002-06-18
Abstract: This invention directs itself to a process for producing thermoplastic resin products where granulated or particulate vulcanized rubber is sprayed by a heated heavy paraffin distillate composition to form a first intermediate mixture composition. The first intermediate mixture composition is passed through a heating chamber (22) on a conveyor (20) and combined with particulate thermoplastic scrap material in an approximating weight percentage of 30% thermoplastic material to 70% first intermediate mixture material. The combination forms a second intermediate mixture composition which is masticated in a masticator (30) and extruded through a single screw feed mechanism (32) for palletizing and producing thermoplastic resin products which are useful for molding.
Patent CA-2064549-C (CA)
Title: Assembly for guided threading of a wrapper
Inventor: HANNIKAINEN JORMA
IPC: B65B11/04
Filed: 1992-03-31
Granted: 2005-01-25
Abstract: The present publication discloses an assembly for guided threading of a wrapper in the wrapping of cylindrical objects, said assembly comprising a two-part frame (2, 3), a belt-like element (8, 9) for guiding the wrapper, and elements (4...7, 10, 11) attached to the frame, suitable for transferring the belt-like element (8, 9) to rest against the roll (1). The invention is based on guiding the wrapper by means of a roller chain (8, 9) comprised of a plurality of freely rotating rollers (17) which are linked to each other. The assembly incorporates two pairs of support arms placed to function in opposing directions with respect to rotating direction of the roll (1), said arm pairs comprising a lower support arm (5, 7) and an upper elongated support arm (4, 6), both pivotally mounted to the frame (2, 3), crank levers (10) attached to the pivotally mounted end of each support arm, and pneumatic cylinders (11) connected to each crank lever (10), capable of rotating the support arms (4...7) via the crank levers (10). The number of the roller chains (8, 9) is two and they are tightened between the ends of the support arms so that they can be transferred by means of the support arms (4...7) to rest against the roll (1).
Patent CA-2066934-C (CA)
Title: Jet thruster with spinner head
Inventor: FLAHERTY WILLIAM J
IPC: B08B9/053
Filed: 1992-04-23
Granted: 1995-07-18
Abstract: A jet thruster for attachment to the outlet end of a high-liquid-pressure hose for use, among other things, in clearing  drain  lines  or  the  like.   The  jet  thruster comprises a body formed of at least hemi-spherical shape about  a  fore-and-aft  axis  that  is  substantially  an extension of the hose.  The hemi-spherical shape gives the frontal area of rearwardly and radially outwardly sloping configuration  over  which  liquid  jets  stream  in  close proximity to that area to augment the forward thrust action against the walls of the drain line which facilitates advance of the thruster through the drain line. Ahead of the frontal area a spinner head is coaxially journalled for rotation via thrust exerted by liquid existing laterally from another jet in the spinner head.   The spinner head jet(s) further create forces that are utilized for clearing the drain line of sludge, roots and the like.  Further, the spinner head may carry blades or the like for increasing the clearing action of the thruster.
Patent CA-2067404-C (CA)
Title: Benzoisothiazole and benzoisoxazole-3-carboxamides a process for their preparation and their use as medicaments
Inventor: HRIB NICHOLAS J
IPC: C07D275/04
Filed: 1992-04-08
Granted: 2003-08-19
Abstract: Benzoisothiazole and benzoisoxazole-3-carboxamides, a process for their preparation and their use as medicaments The present invention relates to benzisothiazole- and benzisoxazole-3-carboxamides of the formula I      wherein R1 is hydrogen or loweralkyl; R2 is loweralkyl, or a group of the formula   R3 is hydrogen or loweralkyl; A is loweralkylene, a group of the formula -CHR4CH=CHCHR4-, or-CHR4C.ident.CR4-; R4 is hydrogen or loweralkyl; X is O or S; W is N or CH; Y is hydrogen, loweralkyl, loweralkoxy, hydroxy, halogen, or trifluoromethyl; Z is hydrogen, loweralkyl, loweralkoxy, hydroxy, halogen, or trifluoromethyl;  n is 1 or 2;     wherein the solid line (~) refers to the point of attachment of the group to the indicated member of the formula; the geometric and optical isomers thereof; or a pharmaceutically acceptable salt thereof, useful for the treatment of psychoses, alone or in combination with inert adjuvants.
Patent CA-2067673-C (CA)
Inventor: NUNES DE ALMEIDA FERNANDO JORG
IPC: F17C9/02
Filed: 1992-04-30
Granted: 1998-12-01
Abstract: The present invention relates to an apparatus for supplying cryogenic fluid in liquid and/or gaseous phase.  The apparatus comprises at least a high capacity thermally insulated tank for storing cryogenic fluid in liquid phase at high pressure and from which cryogenic fluid in liquid phase is supplied, with a liquid cryogenic fluid supplying capacity of about 50 m3/h, to a pumping unit.  The pumping unit comprises at least three pumps each having each a flow rate of about 175 m3/h with a maximum differential pressure of 1013 kPa.  The liquid cryogenic fluid is vaporized in a vaporization and mixture regulation unit with a vaporization capacity of about 360,000 m3/h for liquid cryogenic fluid.         The vaporization and mixture regulation unit includes at least a heat exchanger, a wind tunnel, a ventilization assembly, and an air inlet window through which the liquid cryogenic fluid is vaporized and the gaseous phase can be mixed with the liquid phases through suitably arranged valves and ejectors.   The cryogenic fluid in the gaseous phase or the mixture of cryogenic fluid in the gaseous and liquid phases enters an exhaust duct where temperature can vary from -100°C to +20°C and the pressure can vary from 588 to 1,986 kPa.  The apparatus also includes a power station for powering the plant, and a control and command unit which uses a microprocessor to ensure the automatic and sequential operation of the apparatus.   The present invention is suitable for extinguishing fires in oil wells.
Patent CA-2070000-C (CA)
Title: Space/time switching element
Inventor: WOEHR PETER
IPC: H04Q11/06
Filed: 1992-05-29
Granted: 1999-10-05
Abstract: Starting point: The capacity of a switching network could be increased by increasing the clock rate, but the necessary changes in all interfaces can only be made on a very long-term basis.      Technical problem: temporary solution which permits gradual replacement or expansion with new interfaces. Basic idea: use of switching elements whose inputs and outputs are switchable separately between two bit rates.      Solution: frame structure based on the lowest bit rate.      Within such a frame, even signals with the highest bit rate can be buffered and converted in time. 4 Mb/s and 32 Mb/s are planned.      Advantage: combination of several channels into higher-capacity connections (N x 64 Kb/s) readily possible.      Higher bit rate only in case of real need. Consequently, reduction of power dissipation and spurious radiation.
Patent CA-2084739-C (CA)
Title: Material holding apparatus with integrated finger mount and cap
Inventor: BULL CHARLES L
IPC: A61C19/00
Filed: 1992-12-07
Granted: 1999-01-19
Abstract: A materials holding apparatus consisting of a receptacle, flange, and mount for use in the practice of dentistry capable of bringing the necessary implements to the operation at hand and making the requisite materials available for timely use, which can be worn on the finger or thumb of both left-handed and right-handed individuals with equal ease and remains stable and does not slip and slide around the finger or thumb.  And a protective cap used in conjunction with the finger mounted apparatus to reduce spilling or splattering of the materials contained in the receptacle.
Patent CA-2086042-C (CA)
Title: Photoconductor for electrophotography
Inventor: NAKAMURA YOICHI
IPC: G03G5/06
Filed: 1992-12-22
Granted: 2004-11-30
Abstract: The photoconductor for electrophotography comprises an electroconductive substrate and a photosensitive layer formed on the substrate. The photosensitive layer may be a monolayer or function-separated laminate type one which comprise a charge generating layer and a charge transporting layer laminated one on another. The charge generating layer contains a specified benzidine compound represented by general formula (I) below as the charge transporting substance.   (see formula I) wherein R1, R2, R3 and R4, which are the same or different, each represent independently an aryl group, an alkylaryl group, an alkoxyaryl group or a halogenated aryl group provided that R1 and R2, or R3 and R4, or both combine and form a condensed aromatic group with the nitrogen atom to which they are bonded, respectively; R5 and R6 each represent independently a hydrogen atom, an alkyl group, an alkoxy group, or a halogen atom.
Patent CA-2102343-C (CA)
Title: Process and installation for the separation of solid-liquid-mixtures
Inventor: KOCH MANFRED
IPC: B01D33/067
Filed: 1993-11-03
Granted: 2004-06-22
Abstract: The invention relates to processes for the separation, in particular filtration of liquids and solids from liquid-solid-mixtures, in particular from a mineral solid-liquid-suspension, preferably ore or coal suspension and sludge, respectively, of contaminated earth, the process space being submitted to overpressure, as well as to an installation for carrying out the process, consisting of a collector container for liquid-solid-mixture, in particular suspension, a pressure filter, a discharge system and container for condensate and solid matter. The invention is characterised primarily in that the separation, in particular filtration takes place in addition to the application of overpressure at elevated temperature, preferably 40°C to 300°C, conveniently 60°C to 200°C, preferably about 150°C, and in that the pressure filter (2) communicates with a source for heated medium, respectively.
Patent CA-2102638-C (CA)
Title: Compositions for the impregnation of mineral building materials
Inventor: MAYER HANS
IPC: C04B41/49
Filed: 1993-11-08
Granted: 2000-04-11
Abstract: Compositions for the impregnation of mineral building materials, which comprise (A) salts of organic or inorganic acids and an organopolysiloxane siloxane or mixture of organopolysiloxanes containing SiC-bonded radicals containing basic nitrogen, in amounts of at least 0.5% by weight, based on the weight of the organopoly-siloxane, optionally (B) an organosilicon compound containing basic nitrogen, in amounts of 0 to 0.5% by weight, based on the weight of the organosilicon compound, and (C) a fluorine-containing organic or organosilicon compound.
Patent CA-2103812-C (CA)
Title: Ambient temperature curing compositions containing a hydroxy component and an anhydride component and an onium salt
Inventor: MCENTIRE EDWARD E
IPC: C09D133/06
Filed: 1992-02-03
Granted: 1996-04-30
Abstract: Ambient temperature curing compositions comprising a hydroxyl component and an anhydride component are disclosed. Cure is accelerated by the presence of an onium compound. The compositions are useful in the formulation and application of coatings.
Patent CA-2104439-C (CA)
Title: Anvil bushing for circular stapler
Inventor: MAIN LAUREN O
IPC: A61B17/068
Filed: 1993-08-19
Granted: 2004-06-22
Abstract: An anvil bushing for use with a surgical circular stapler used to perform an anastomosis. The anvil bushing is mounted to the anvil shaft of the stapler. The bushing has a tubular member having an axial pathway therethrough.      The tubular member has a proximal end, a distal end and an exterior surface. A first flange member having a first diameter is mounted to the distal end of the tubular member. A second flange member having a second diameter is mounted to the proximal end of the tubular member. The second diameter is larger than the first diameter. Legs for locating the bushing on an anvil shaft extend axially from the first flange member. Tissue notches are contained in the second flange member.
Patent CA-2113335-C (CA)
Title: Inverter power supply for welding
Inventor: BLANKENSHIP GEORGE D
IPC: B23K9/10
Filed: 1994-01-12
Granted: 1997-07-22
Abstract: A high frequency power supply for supplying a welding current through a choke to a welding station including an electrode element and a workpiece element.  The power supply includes a first transformer with a first core and means for receiving on said first core a first secondary winding with the first core being magnetized in a first flux direction upon creation of first current pulse and a second transformer with a second core and means for receiving on said second core a second secondary winding with said second core being magnetized in a second flux direction upon creation of a second current pulse in the direction opposite to the first pulse.  The first transformer is operated by a first capacitor means for applying a first voltage to the first transformer upon operation of a first switch means and the second transformer is operated by a second capacitor means for applying second voltage to the second transformer upon operation of a second switch means.  A single rectifier charges the first and second capacitor means to a given total voltage and control means  are provided for maintaining  said first and second voltages generally equal.