baber/WOPTO huggingface dataset:
Patent CA-2079697-A1 (CA)
Inventor: CHANDLEY GEORGE D
IPC: B22D18/06
Filed: 1992-10-02
Abstract: DIFFERENTIAL PRESSURE, COUNTERGRAVITY CASTING                 Abstract of the Disclosure A method and apparatus for the differential pressure, countergravity casting of a melt involves a casting mold which includes an ingate for engaging an underlying source of the melt, an upstanding, alloyant-containing reaction chamber having an upper region communicated to the ingate, and an exit gate communicating a lower region of the reaction chamber to a mold cavity.  The mold and the source are relatively moved to engage the ingate and the source. A sufficient relative vacuum is applied to the mold cavity to draw the melt from the source upwardly through the ingate and into the reaction chamber where the melt reacts with alloyant therein.  The melt is drawn upwardly to leave at least a portion of the volume of the mold cavity unfilled with melt and to provide a sufficient volume of melt in the reaction chamber to fill the unfilled volume of the mold cavity after disengagement of the mold and the source.  The mold and the source are then relatively moved by suitable means to disengage the ingate and the source while a relative vacuum is applied to the mold cavity sufficient to draw the volume of melt in the reaction chamber into the mold cavity such that the unfilled volume thereof is filled after the mold and the source are disengaged.  The reaction chamber is thereby essentially emptied of melt as required to fill the unfilled volume of the mold cavity.  The melt in the ingate is drained back to the underlying source when the mold and the source are disengaged.  The melt is treated with the alloyant (e.g., nodularized) while melt usage for gating to the castings is substantially reduced.
Patent CA-2081226-A1 (CA)
Title: Monitoring and control system for selective regeneration of alkanolamine from cation ion exchange resin with sodium hydroxide
Inventor: CUMMINGS ARTHUR L
IPC: B01J49/00
Filed: 1992-12-16
Abstract: Case No. 91/056 A cation exchange resin is regenerated to remove alkanolamine and alkali metal cations from the resin by eluting the resin with alkali metal hydroxide to selectively displace alkanolamine from the resin, followed by elution of the resin with a mineral acid to displace alkali metal cations and any remaining alkanolamine from the resin. During this process, the resin is monitored by measuring and recording the conductance of the effluent from the resin and such recorded conductance is used to control the regenerant streams to provide more efficient regeneration of the resin.
Patent CA-2081786-A1 (CA)
Title: Rosin emulsion composition for paper sizing and method of sizing using the same
Inventor: NAKAMURA KATSUNORI
IPC: D21H17/55
Filed: 1992-10-30
Abstract: Abstract of Disclosure The present invention provides a rosin emulsion composition for paper sizing obtained by  dispersing a rosinous substance containing an ester formed from a rosin and a polyhydric alcohol or polyhydric phenol directly in water with the aid of a cationic acrylamide polymer and/or methacrylamide polymer having a hydrophobic group and a method of sizing using the same.  The sizing composition of the present invention exhibits an excellent sizing effect which cannot be achieved by a conventional rosin sizing agent in a neutral papermaking system containing calcium carbonate not to mention in an acidic papermaking system. It is also excellent in storage and mechanical stabilities and remarkably reduces foaming which is inevitably caused with use of a sizing agent.
Patent CA-2083856-A1 (CA)
Title: Method and apparatus for gas assisted injection molding having precise control of injection and holding pressure with stepped holding pressure capability
Inventor: NELSON WILLIAM A
IPC: B29C49/78
Filed: 1992-11-26
Abstract: ABSTRACT OF THE DISCLOSURE     A method and apparatus for gas assisted injection molding which will first inject a shot of molten plastic into a suitable mold, shut off  the plastic flow into the mold,  and either immediately,  or after a delayed time, inject a suitable pressurized gas into the mold at a desired injection pressure.  The pressure of the gas in the mold is then controlled by stepping up or stepping down the pressure in the mold in a series of steps to arrive at a second predetermined and precisely controlled pressure.  The predetermined pressure is held for a desired time.  The setting and holding of pressure is repeated as many times as desired, and is then stepped down to a final pressure.  The mold is then opened, and the article is removed.
Patent CA-2084066-A1 (CA)
Inventor: SAGSTETTER WILLIAM E
IPC: B65F1/00
Filed: 1991-06-10
Abstract: La présente invention a pour objet un réceptacle comportant un premier logement (130) destiné à recevoir l'extrémité antérieure (32) du cylindre d'un porte-tube (34) de prélèvement sanguin conventionnel pourvu d'une aiguille à deux pointes, le cylindre en question servant à stabiliser le porte-tube durant le dévissage de l'aiguille. Un ergot (138) placé à l'intérieur du logement (130) sert à prévenir la rotation de l'embout (44) de l'aiguille pendant que le porte-tube (34) est tourné sur lui-même pour le dévissage de l'embout. Lorsque complètement dévissée, l'aiguille (62) tombe dans le réceptacle (10); la chute de l'aiguille peut être assistée par une paire de lames ressort (142 et 144). Un deuxième logement (172) pratiqué dans le réceptacle reçoit le collet (78) d'un élément de protection (52) supportant un porte-tube (54) coulissant, celui-ci permettant le raccordement par filetage de l'embout (60) d'une aiguille à deux pointes. Un ergot (198) placé à l'intérieur du logement (172) peut être introduit à l'intérieur du collet (78) au niveau d'une nervure (61) pratiquée sur l'embout et contribuant à prévenir la rotation de l'aiguille à deux pointes durant la rotation de l'élément de protection (52) pour désaccoupler l'embout du porte-tube (54). Lorsque complètement dévissée, l'aiguille à deux pointes (62) tombe dans le réceptacle (10); la chute de l'aiguille peut être assistée par une paire de lames ressort (178 et 180).
Patent CA-2087430-A1 (CA)
Title: Stable pharmaceutical compositions containing a fibroblast growth factor
Inventor: ADAMI MARCO
IPC: A61K47/32
Filed: 1991-07-16
Abstract: A stable lyophilised formulation of a fibroblast growth factor (FGF) comprises the FGF, a pharmaceutically acceptable bulking agent and either (a) an alkali metal salt of a carboxyalkyl cellulose, or (b) a polyoxyethylene sorbitan fatty acid ester and cysteine.
Patent CA-2091132-A1 (CA)
Title: Generator sealing oil temperature control method and apparatus utilizing temperature matching
Inventor: SNUTTJER OWEN R
IPC: F01M5/00
Filed: 1993-03-05
Abstract: 57,018 ABSTRACT OF THE DISCLOSURE A system for providing seal oils to a gland seal that surrounds the shaft of a generator with  the tempera-ture  differences  between  the  oils  minimized,  as well maintained at a temperature which is greater than that for a bearing  lubrication oil supply system.  The temperature of the air-side seal oil is used as  a reference  and then the difference between the air- and hydrogen-side seal oil temperatures is used to control the hydrogen-side seal oil temperature.   The air-side temperature is controlled by a separate controller using the bearing oil temperature as a reference.    The  system  advantageously prevents thermal differential expansion  from  occurring  in  the generator shaft and gland seal, and eliminates the need for operator attention for seal oil temperature control.
Patent CA-2097772-A1 (CA)
Title: Internal Baffle System for a Multi-Cylinder Compressor
Inventor: FRY EMANUEL D
IPC: F04B39/00
Filed: 1993-06-04
Abstract: A compressor assembly is disclosed including a compressor mechanism, mounted within a hermetically sealed housing.  A cylinder block contains a plurality of reciprocating pistons within compression chambers. The compression chambers include a discharge valve which permits compressed refrigerant to empty into the common discharge chamber.  A baffle system is included within the common discharge muffler chamber to eliminate pressure pulses and cross talk between discharge valve assemblies, thereby increasing the discharge valve opening speed and correspondingly increasing the compressor efficiency.
Patent CA-2097997-A1 (CA)
Title: Vitamin d compounds and method of preparing these compounds
Inventor: SESTELO JOSE P
IPC: A61K8/67
Filed: 1993-06-08
Abstract: The invention relates to a new vitamin D compound of the general formula   wherein:        R1 is a hydrogen atom or a hydroxy group;      R2 is a (C1-C3)alkyl group, a hydroxy(C1-C3)alkyl group, a (C1-C2) alkoxymethyl group or a (C2-C3) alkenyl or alkynyl group;      R3 is a branched or non-branched, saturated or unsaturated aliphatic 3- to 5-membered hydrocarbon or oxahydrocarbon biradical, having at least 3 atoms in the main chain and being optionally substituted with one or more substituents selected from epoxy, fluoro and hydroxy;        R4 is a sec. or tert. (C3-C6)alkyl group or a (C3-C6)cycloalkyl group; and A and B are each individually hydrogen atoms or methyl groups, or A and B form together a methylene group.        The invention further relates to a method of preparing these compounds and to their use in pharmacotherapy and cosmetics.
Patent CA-2098497-A1 (CA)
Title: Guerbet carbonates
Inventor: WESTFECHTEL ALFRED DR
IPC: C07C68/06
Filed: 1991-12-03
Abstract: Guerbet carbonates are disclosed having the formula (I), in which R1 stands for a branched alkyl residue with 12 to 44 carbon atoms and R2 stands for R1 or for a linear alkyl residue with 1 to 12 carbon atoms. To produce these carbonates, Guerbet alcohols are esterified in the presence of alkali or alkaline earth metal compounds with dialkyl carbonates, the esterification products are processed with filtering aids and then filtered. These products are useful as lubricants.
Patent CA-2098945-A1 (CA)
Inventor: CASPERS CARL A
IPC: A61F2/78
Filed: 1993-06-22
Abstract: A visco-elastic polymer liner for use in donning over a residual limb and fitting within the socket of an artificial limb.  The liner is shaped to have its cavity formed with a volume and shape less than a volume and shape of the residual limb for both tension and tissue configuration relief while the liner has an outer surface formed with a volume and shape greater than the volume and shape of the artificial limb socket for relief of certain tissue configurations and to create weight bearing, relief and compression areas on and in the liner to absorb and dissipate shock, shear and mechanical forces through the liner otherwise transmitted to the residual limb.  The liner may have imbedded on its inner cavity side electrodes adjacent muscles that are sensitive to the muscle action potentials to generate signals to a power source to move an articulable artificial limb.  The liner may take the shape of a tube to be donned over a paralyzed limb similarly having electrodes imbedded in its inner cavity side adjacent neuromuscular junctions which are connected to a muscle action potential generator to activate flexion and extension of the paralyzed limb.  A method for making the liner is also claimed which comprises the making of a positive model of the residual limb, reducing the model, forming the liner about the reduced model and laminating a hard socket over a reduced model of the liner.
Patent CA-2102397-A1 (CA)
Title: Presentation aid
Inventor: PRATT HOWARD A
IPC: G09F11/21
Filed: 1993-11-03
Abstract: Abstract A presentation aid employs a translucent panel having a milky appearance and which is back lit by a number of illumination sources, each source illuminating a specific portion of the panel. Baffles separate adjacent illumination sources so that light from one illumination source does not substantially illuminate a portion of the panel associated with other illumination sources.  A sheet of information carrying material passes between the illumination sources and the back of the panel, such that the information on the sheet is not visible at the front face of the panel unless an illumination source is activated behind the information.  The various illumination sources may be selectively activated to provide controlled viewing of the information.  Rollers wind and unwind the sheet of information carrying material in response to operator command to allow changing of the information.
Patent CA-2104335-A1 (CA)
Inventor: SOARES MARCIO D
IPC: C22C21/00
Filed: 1993-08-18
Abstract: There is claimed an aluminum alloy sheet product having a composition consisting essentially of: about 1.35-1.6 wt.% iron; about 0.3-0.6 wt.% manganese, about 0.1-0.4 (and preferably about 0.22-0.4) wt.% copper; about 0.05-0.1 wt.% titanium; about 0.01-0.02 wt.% boron; up to about: 0.2 wt.% silicon, 0.02 wt.% chromium, 0.005 wt.% magnesium and 0.05 wt.% zinc; and a balance of aluminum, incidental elements and impurities.  This composition is cast to an initial thickness greater than about 3 mm (0.12 inch).          The end product exhibits improved strength and surface properties through a manufacturing process which includes:  heat treating at one or more temperatures above about 450°C (842°F), and preferably below about 500°C (932°F); before rolling to final gauge.  When cold rolled to various thicknesses, this sheet product exhibits ultimate tensile strength values ranging from 11-15 kg/mm2 for thin and intermediate gauge products, to about 27-30 kg/mm2 (38.4-4Z.7 ksi) for the finstocks made hereby.          Percent elongations vary from a minimum of 3% to greater than 10%.
Patent CA-2106738-A1 (CA)
Inventor: FOGLE RONALD L
IPC: B41J2/325
Filed: 1993-09-22
Abstract: The thermal printing postage meter includes a base supporting a registration wall and a deck, and a thermal print head fixably mounted to the registration wall above a portion of the deck to define a print station for printing a postage indicia on an envelope when the leading edge of the envelope is properly positioned on the deck in the print station. A position sensing assembly is provided for sensing the presence of the envelope's leading edge in the print station. a microcontroller is in bus communication with the position sensing means. A thermal tape cassette is detachably mounted to the registration wall such that the thermal print head extends through the opening and has its thermal ribbon passing below the thermal print head. A platen roller assembly and position assembly are responsive to instruction from the microcontroller for causing the platen roller to assume a second positioned biasing the envelope against the thermal ribbon and the thermal print head, and a home position ducked below the deck. An ejection plate is fixably mounted to the registration wall.  An ejection roller assembly having position assembly is responsive to instruction from the microcontroller for causing the ejection roller to assume a home position biasing the ejection roller assembly in the direction of the ejection plate and a second position ducked below the deck.  A motor in bus communication with and responsive to the microcontroller causes the platen and the ejection roller to rotate under the control of the microcontroller,  The microcontroller is programmed such that in response to activation of the position sensing means by the envelope, the microcontroller to cause the platen roller assembly to assume the second position and to initiate print sequence instruction to the print head while synchronously causing the drive means to cause the platen roller to rotate at a first speed, following completion of the print sequence, the microcontroller to cause the platen roller to assume the home position and the ejection roller assembly to assume the home position and causing the ejection roller to rotate at a second speed.
Patent CA-2107775-A1 (CA)
Title: Systeme d'ossature de batiment, a ame, poutre et bati
Inventor: SLATER JACK
IPC: E04C3/32
Filed: 1992-04-06
Abstract: On décrit une âme auto-montable (44) conçue pour fixer deux membrures (42) afin de former une poutre (40). Il existe différentes tailles d'âme pour l'assemblage de poutres de profondeurs différentes. Une âme comprend plusieurs trous pour des vis de centrage permettant de fixer l'âme à une paire de membrures parallèles l'une à l'autre. Des membrures ayant la même section extérieure mais de largeurs différentes sont utilisées pour réaliser des poutres de résistances différentes. Des poutres assemblées sont utilisées dans le cadre d'une structure de bâtiment, par exemple un mur, un plancher ou un plafond. Un système est prévu de manière qu'un architecte puisse déterminer, en fonction des forces appliquées par le vent (flexion) et des charges axiales devant être supportées par la structure, l'espacement et la profondeur des poutres requises pour que la structure puisse supporter les charges. Les poutres sont alors assemblées pour satisfaire les exigences spécifiées selon une série d'instructions standards qui précisent l'épaisseur de l'acier des membrures, les dimensions de l'âme, le nombre et l'espacement des âmes dans le sens longitudinal le long de l'âme, et le nombre et les emplacements des vis utilisées pour fixer chaque âme à une paire de membrures.
Patent CA-2111125-A1 (CA)
Title: Spindle for Mower Deck
Inventor: MYSZKA KEVIN
IPC: A01D34/73
Filed: 1993-12-10
Abstract: A spindle end/blade hole combination using a symmetrical six pointed star having differing radiused ends as the interconnection therebetween.
Patent CA-2111144-A1 (CA)
Title: Ground marker
Inventor: JAMBOR CHARLES E
IPC: A63B57/30
Filed: 1993-12-10
Abstract: A  ground marker  is  provided  for  displaying distance and advertising information on a golf course. The marker has a body that is dimensioned to fit entirely within a pre-determined size hole defined in the ground. The marker has a top face that is positioned generally flush with the ground surface, and a protruding lip that is dimensioned to bear against the sides of the hole.  The top face is formed from a clear plastic filler positioned over  a  card containing markings.    The  filler has  a hardness comparable to the hardness of a grassy fairway. The lip of the marker has a bottom surface that abuts with the tool for permitting easy removal of the marker from the hole.   The bottom surface of the lip also causes growing over the hole to be born against the side of the holes when the marker is inserted into the hole.  A method of marking distances on a golf course is provided by arranging a plurality of markers at spaced intervals along concentric radii measured from the golf green.  A method of advertising on a golf course is provided by displaying advertising markings on the card so that the advertisement is visible when the marker is submerged in the ground.
Patent CA-2112295-A1 (CA)
Title: Power sequencing method for electro mechanical dispensing devices
Inventor: GOECKNER VICTOR D
IPC: A01M21/04
Filed: 1993-12-23
Abstract: A method of controlling the application of power to a plurality of metering devices in a pesticide dispensing system. By controlling the application or sequencing of power, the maximum power required by the system can be reduced.
Patent CA-2112768-A1 (CA)
Title: Monomodal, Monodisperse Toner Compositions and Imaging Processes Thereof
Inventor: FULLER TIMOTHY J
IPC: G03G9/09
Filed: 1994-01-04
Abstract: A toner composition comprised of pigment particles, and a resin comprised of a monomodal polymer resin or monomodal polymer resin blends and wherein the monomodal resin or resin blends possess a narrow polydispersity.
Patent CA-2114552-A1 (CA)
Inventor: LIEUX RALPH L
IPC: C08G59/68
Filed: 1993-05-03
Abstract: A curable, processable, substantially lead-free composition for moisture resistant cable jacket applications based on chlorinated polymeric materials stabilized by an epoxy compound.
Patent CA-2114632-A1 (CA)
Inventor: LEMER ALAIN
IPC: G01R29/027
Filed: 1992-07-31
Abstract: 2114632 9303395 PCTABS00161 L'invention concerne les procédés qui permettent de repérer dans un signal acoustique continu des signaux acoustiques impulsionnels. Elle consiste à déterminer les paramètres (ai) d'un filtre par apprentissage (109) à l'aide d'une modélisation par prédiction linéraire auto-régressive. Ces paramètres sont alors appliqués à un filtre soit du type à moyenne adaptée (110), soit du type auto-régressif (111.1), qui reçoit le signal de réception et délivre un signal comprenant une partie continue à bas niveau et une partie impulsionnelle à haut niveau qui représente les signaux à détecter. Dans une variante on utilise plusieurs filtres auto-régressifs (111.1-111.n) mis en série. Elle permet d'aider à la détection des pannes dans les moteurs.
Patent CA-2114657-A1 (CA)
Title: Uni-axially co-oriented thermoplastic film and bags made therefrom
Inventor: MURRAY CHARLES R
IPC: B29C47/06
Filed: 1994-01-31
Abstract: Thermoplastic uni-axially co-oriented film, method of making the film and heavy-duty shipping bags made therefrom. The method allows for the manufacture of heavy duty bags made from blown thermoplastic films.      Shipping, such as courier, bags have improved strength, puncture and snag resistance.
Patent CA-2114825-A1 (CA)
Title: Face shield with chin contacting element
Inventor: PERNICKA MARTIN P
IPC: A42B3/20
Filed: 1994-02-01
Abstract: The disclosure herein describes a face guard for a sports headgear that comprises a face shield and a chin contacting element hingedly mounted to the lower part of the face shield, inwardly thereof. In one embodiment, the chin contacting element is pivotally mounted within a chin frame which is, itself, hingedly connected to the face shield, wherein the downward movement of the chin frame is limited by its upper edge contacting the lower edge of the face shield.
Patent CA-2115225-A1 (CA)
Title: Mixer systems
Inventor: GAMBRILL JEFFREY S
IPC: B01F7/16
Filed: 1994-02-08
Abstract: MIXER SYSTEMS                             Abstract A mixer system for aggressive (toxic, hazardous, corrosive, etc.) materials which are mixed (agitated, suspended, circulated, etc.) in a vessel with an impeller connected to a drive shaft has the impeller and its shaft mounted in an assembly which extends through an opening into the tank and closes that opening.  The assembly has a cylindrical hub with a passageway through which the shaft extends out of an open end of the hub. Bearings which are made of materials resistant to the aggressive material in the tank are mounted in the hub and journal and support the shaft.  The passageway is part of a confinement region which is terminated by a confinement shell which separates inner and outer rotors of a magnet coupling.  The inner rotor is connected to the shaft, directly or through a gear train (preferably a planetary gear set).  The outer rotor is connected to a drive shaft.  A motor and/or gear box may be mounted on a pedestal or support so that the shaft, the inner and outer rotors, the impeller drive shaft and the bearings are all coaxial with each other.  There are no dynamic seals which close the confinement region so that the aggressive materials can be present therein.  In the event that it is desirable that the bearings be replaceable or the confinement region be sterilized or purged, an expandable elastomeric collar may be disposed either at the end of the hub below the bearings, which may then be mounted in a cartridge in the hub which is removable therefrom, or in a plate spaced from the hub.  Purge or pressure release passages may be provided which are opened and through which purging or sterilizing gas is introduced into the confinement region.  A secondary seal may be provided between a collar extending radially inward from the hub and a flange on the hub which is normally biased to disable the seal while the shaft is running, but when the shaft is stopped forms a static seal in response to force acting on the flange as a piston which exceeds the force behind the piston which is less than the force due to the material in the tank when the confinement region is opened, as through the purge passageways to the atmosphere.