baber/WOPTO huggingface dataset:
Patent CA-2052265-C (CA)
Title: Device for extruded string forming around the periphery of a glass sheet
Inventor: SCHOLL HEINZ
IPC: B29C48/12
Filed: 1991-09-30
Granted: 2001-12-18
Abstract: An extrusion nozzle 5, 55 with an outlet 6 calibrated in order to extrude a profile 3 directly into the peripheral zone of a window glazing 2 is equipped with a plate 22, 60 downstream of the outlet 6 which partially closes it off. The plate 22, 60 is alternatively a slide 22 actuated by a ram 16 or a disc 60 set into rotational movement. A nozzle of the preceding type enables profiles of various cross-sections to be produced. 
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Patent CA-2053778-C (CA)
Title: Output level control circuit for use in rf power amplifier
Inventor: ICHIHARA MASAKI
IPC: H03G3/20
Filed: 1991-10-21
Granted: 1996-01-30
Abstract: An output level control circuit for a high frequency power amplifier for amplifying high frequency signals having the "on" and "off" periods of transmit signals in a fixed recurrent cycle such as in a TDMA radio communication system or a GSM system.  The high frequency detecting circuit for the output level control circuit is responsive to part of the output of the high frequency power amplifier and a control signal corresponding to said "on" and "off" periods of transmission power for generating an output level control signal for the high frequency power amplifier.  The high frequency detecting circuit has detecting means for detecting the wave height of the high frequency signals and differential voltage generating means for generating, for each of said recurrent cycles, a differential voltage between the detection output during the "on" period and the detection output during the "off" period immediately preceding it.  This differential voltage is used as the temperature-compensated output level control signal for the high frequency power amplifier.
Patent CA-2056034-C (CA)
Inventor: HATTORI TOSHIHIRO
IPC: C08J5/24
Filed: 1991-11-22
Granted: 2001-04-17
Abstract: A prepreg for fiber-reinforced composite materials comprising (A) a reinforcing fiber having a modulus of elasticity of 200 GPa or more, (B) a fibrous thermoplastic resin having a modulus of elasticity of 100 GPa or less, and (C) a thermosetting matrix resin.      The prepreg of the present invention does not only have excellent handling property equivalent to that of the prepreg with the conventional thermosetting resin as a matrix, but also gives excellent toughness to the resulting molded product without injuring the thermal and mechanical properties. Particularly, it has a high resistance to interlaminar fracture when exposed to impact, so that it is preferably used as a structural material for airplanes, etc.
Patent CA-2057014-C (CA)
Title: Process for purification of polypeptide
Inventor: KAMINUMA TOSHIHIKO
IPC: C07K1/36
Filed: 1991-03-29
Granted: 2001-07-24
Abstract: An improved process for purifying a polypeptide using a packing material for reversed phase high performance liquid chromatography is provided. A process for purifying a polypeptide characterized in that an aqueous solution containing polypeptide obtained by pre-treating a polypeptide produced by a wide variety of cells to a predetermined state is adjusted to a specific pH value, to remove impurities, and is then treated with a packing material for reversed phase high performance liquid chromatography.
Patent CA-2059273-C (CA)
Title: Phase detector
Inventor: MARTIN FREDERICK L
IPC: H03L7/087
Filed: 1990-06-18
Granted: 1994-12-06
Abstract: A phase detector (20) is provided for detecting the phase difference between a first input signal and a second input signal and providing an output corresponding thereto. The phase detector (20) comprises a dual state phase detector (28), a tri-state phase detector (32), a control input (2) for receiving a control signal, and a control circuit (8, 12, 14 and 16) for selecting either the dual state phase detector (28) or tri-state phase detector (32). The dual state phase detector compares the phase difference be-tween the first input signal and the second input signal. The tri-state phase detector (32) compares the phase difference between the second input signal and the inverse of the first input signal. The control circuit selects the output of the dual state phase detec-tor (28) or selects the output of the tri-state phase detector (32) based upon the control signal.
Patent CA-2064418-C (CA)
Inventor: GUERET JEAN-LOUIS H
IPC: A45D34/04
Filed: 1992-03-30
Granted: 2002-08-27
Abstract: La brosse (1) comporte une multitude de poils (2) coincés dans les spires d'au moins deux branches (3, 4) de fil métallique torsadées en hélice qui forment l'âme (5) de la brosse, les poils étant disposés sensiblement radialement. La brosse comprend des poils (2) réalisés en une matière molle, de dureté comprise entre 20 shores A et 40 shores  D ; leur diamètre est suffisamment important pour leur éviter une trop grande flexibilité.
Patent CA-2066831-C (CA)
Inventor: BROWN ALISON K
IPC: H04W64/00
Filed: 1992-04-22
Granted: 2003-12-16
Abstract: A tracking system employing global positioning system (GPS) satellites provides extremely accurate position, velocity, and time information for vehicles or any other animate or inanimate object within any mobile radio communication system or information system, including those operating in high rise urban areas. The tracking system includes a sensor mounted on each object, a communication link, a workstation, and a GPS reference receiver. The sensor operates autonomously following intialization by an external network management facility to sequence through the visible GPS satellites, making pseudo range and delta range or time difference and frequency difference measurements. No navigation functions are performed by the sensor, thereby permitting significant reductions in the cost thereof. The raw satellite measurements, with relevant timing and status information, are provided to the communication link to be relayed periodically back to the workstation. Differential corrections may also be provided at the workstation to increase the accuracy of the object location determination. In normal operation, three satellite measurements are required to compute the location of the object, but for a short time period a minimum of two satellite measurements are acceptable with time, altitude, and map aiding information being provided by the workstation.
Patent CA-2067217-C (CA)
Inventor: EDELMAN GERALD M
IPC: G06V10/764
Filed: 1990-10-10
Granted: 1999-02-23
Abstract: Appareil (figure 1) capable de détecter la présence d'objets dans son environnement, de catégoriser ces objets sans description préalable des catégories auxquelles on peut s'attendre, et de commander des mécanismes effecteurs robotiques afin de répondre distinctivement auxdits objets selon leurs catégories. Lesdites réponses consistent à trier les objets, à rejeter les objets de certains types, et à détecter les objets nouveaux ou aberrants. L'invention comprend un dispositif appelé "classification n-tuple" (dont un "couple de classification" est un cas spécial), capable de combiner des signaux provenant de deux modalités sensorielles ou plus, afin de parvenir à la classification d'un objet.
Patent CA-2070248-C (CA)
Inventor: ROGALLA FRANCK
IPC: C02F3/04
Filed: 1992-06-02
Granted: 2005-03-29
Abstract: Selon l'invention, où l'eau à traiter est envoyée à co-courant avec du gaz oxygéné dans un réacteur ascendant à lit fixe de particules, on utilise comme support des bactéries des particules de masse volumique, de matériau en vrac, comprise entre 35 et 65 kg/m3.      Le ou les réacteurs ou filtres biologiques (1,1') en série, comprennent : une zone d'épaississement des boues (2); au moins un dispositif d'injection de gaz oxygéné (3,3'), une zone de matériau filtrant (4); un plafond de retenue des particules (7); uns zone de réserve d'eau de lavage avec évacuation (9) de l'effluent traité.      Application au traitement d'eaux résiduaires et d'eaux à potabiliser.
Patent CA-2071005-C (CA)
Title: A method for the flat manufacture of three-dimensional articles, particularly absorbant, disposable articles, and an article produced in accordance with the method
Inventor: WIDLUNG LEIF URBAN ROLAND
IPC: A61F13/49
Filed: 1990-12-14
Granted: 2001-11-27
Abstract: The present invention relates to a method for the flat manufacture of three-dimensional articles, in particular absorbent disposable articles. According to the invention, a plurality of narrow, flexible absorbent bodies (1a-1g) are placed sequentially on a thin material web of liquid-impermeable material (2; 2') or liquid-permeable material, said pads having mutually di-verging side surfaces on both sides of a central part of said pads intended to form the crotch parts of a manufactured arti-cle; placing a thin, second material web of liquid-permeable material (4) or liquid-impermeable material over said bodies and fastening second material web to the first material web (2; 2') so as to enclose each pad between the two material webs; and by rendering those pans of the mutually joined material webs located between the different pads contractable prior to of in conjunction with placing the liquid-permeable material web in position;  and by then causing the contractable parts of the material webs to contract and therewith move the side surfaces of the pads towards one another. The invention also re-lates to an absorbent disposable article manufactured in accordance with the method.
Patent CA-2072329-C (CA)
Title: Fiber coupler manufacturing apparatus having an automatic breaking test device
Inventor: TAKIMOTO HIROAKI
IPC: G02B6/255
Filed: 1992-06-25
Granted: 1999-11-16
Abstract: The present invention provides a fiber coupler manufacturing apparatus comprising a pair of fiber holding portions and a fiber clamp disposed on each of the fiber holding portions for holding at least two optical fibers.  A weight and pulley system is arranged wherein a first weight is coupled to each of the fiber holding portions to pull the fiber holding portions away from each other to apply tension to the optical fibers. A heating unit is disposed between the fiber holding portions and proximate to the optical fibers to heat the optical fibers. A second weight is coupled to either the fiber holding portions or the first weight and rests on a movable platform. As the movable platform descends in a vertical direction, the second weight applies additional force to the fiber holding portions and thus applies additional tension to the optical fibers.
Patent CA-2075551-C (CA)
Title: Treatment of periodontitis
Inventor: VAN DER OUDERAA FRANCISCUS JOH
IPC: A61P43/00
Filed: 1992-08-07
Granted: 1996-05-07
Abstract: The present invention relates to the prevention of periodontitis by the use of a medicament which contains Triclosan. It has been found that Triclosan has a considerable anti-cyclo-oxygenase activity, thus inhibiting the formation of prostaglandins which are mediators of the loss of alveolar bone in the periodontium.  Reducing the formation of said prostaglandins therefore reduces said loss of alveolar bone, which is one of the symptoms connected with periodontitis.            The medicament is preferably in the form of a toothpaste.
Patent CA-2084389-C (CA)
Title: Tamper evident container closure
Inventor: KELLER ROBERT G
IPC: B65D79/00
Filed: 1992-12-02
Granted: 2004-05-25
Abstract: A tamper evident closure for a container has a seal member which is in a concave or convex condition to show closure integrity. the seal is visible through an opening in the cover of the container. Filling the container under pressure which is higher or lower than atmospheric produces the distention or contraction of the seal member that evidences that no tampering or leakage has occurred.
Patent CA-2087822-C (CA)
Title: Measurement of attenuation of optical fibers
Inventor: LAMONDE JOSEPH EMILIEN GERMAIN
IPC: G01M11/00
Filed: 1993-01-21
Granted: 1999-06-22
Abstract: Attenuation of an optical fiber is measured by transmitting an optical signal having a predetermined wavelength to the fiber, and  FSK  modulating  the  optical  signal  with  information identifying the wavelength and transmitted power of the optical signal.  At a receiver, the optical signal is detected and the information is recovered by demodulation.  Wavelength-dependent sensitivity information for the detector is read from a store in dependence upon the wavelength information and used to control the  gain  of  an  amplifier  for  amplifying  a  subsequently transmitted continuous wave optical signal used for attenuation measurement.  The received power level of this optical signal is converted into a digital value and used with the transmitted power information to determine the fiber attenuation at the predetermined wavelength.
Patent CA-2091712-C (CA)
Title: Use of a chemically-stabilised chlorite matrix for the parenteral treatment of hiv infections
Inventor: KUHNE FRIEDRICH W
IPC: A61K33/20
Filed: 1993-03-16
Granted: 2004-05-25
Abstract: The present invention is concerned with the use of a chemically-stabilised chlorite matrix for the parenteral treatment of HIV infections, consisting of an isotonic solution containing 5 to 100 mMol C10 2 - per litre of solution.
Patent CA-2091793-C (CA)
Title: Disposable diapers
Inventor: TANJI HIROYUKI
IPC: A61F13/15
Filed: 1993-03-17
Granted: 1997-09-23
Abstract: A disposable  diaper  so  improved that  the  uppermost sheet 14 is formed at its central zone with an opening 16, first and second elastic members 17,  18 are attached to the sheet   14   along   halves   of   the   opening's   periphery, respectively, with the longitudinally opposite ends of these elastic members intersecting each other at the longitudinally opposite  ends  of the  opening  16,  respectively,  and  the uppermost sheet 14 is torn off from these intersections.
Patent CA-2095062-C (CA)
Title: A method for removing impurities from an alkali metal chlorate process
Inventor: ERIKSSON STINA
IPC: C01B11/14
Filed: 1993-04-28
Granted: 1999-12-21
Abstract: The invention relates to a method for removing calcium ions and silicon compounds from various liquors produced or obtained in an alkali metal chlorate process, thereby reducing the operating cost and improving the possibility to close the process further. The calcium ions and silicon compounds are removed by addition of carbonate ions for precipitating calcium carbonate and by addition of an iron-containing compound for forming and precipitating a complex of iron ions and a silicon compound, whereupon the precipitates are co-separated from the liquor. The removal of calcium and silicate ions is substantially facilitated by the simultaneous separation of the precipitates.       Subsequently, the excess of carbonate ions can be reduced by acidifying the electrolyte for releasing carbon dioxide.
Patent CA-2099243-C (CA)
Title: Frozen dessert compositions and products
Inventor: HUANG VICTOR T
IPC: A23G9/32
Filed: 1991-12-20
Granted: 1997-03-04
Abstract: The invention is directed to compositions which are capable of being converted to frozen dairy dessert products, including ice cream and yogurt desserts, which have organoleptic qualities comparable to high fat frozen desserts such as ice cream. The compositions are either aerated or quiescently frozen. The dessert products are highly stable to heat shock with a high degree of creaminess. The compositions are composed of a source of milk protein, sweetening agent, partially hydrolyzed starch, and water. Preferably, the compositions are composed of only natural ingredients without added stabilizing gums. Also provided is a method of making the frozen dairy dessert products and a method of preparing a yogurt premix for preparing aerated frozen yogurt des-serts.
Patent CA-2101822-C (CA)
Title: Block assembly for use in scarfing apparatus
Inventor: DAWSON JOHN G
IPC: B23K7/06
Filed: 1993-08-03
Granted: 1997-11-18
Abstract: A block assembly for a thermochemical scarfing apparatus which allows a greater diagonal standoff distance from the metal workpiece during preheating.  The block assembly comprises a base member and an extension releasably joined to the base member, and the base member and extension include an internal network of gas distribution lines for separately delivering both oxygen and fuel gas to each of a plurality of discharge openings which are disposed in a longitudinal row along the front face of the extension. A nozzle insert is releasably mounted in each discharge opening, such that during preheating, the oxygen may be discharged from each discharge opening as a central high velocity stream and the fuel gas may be discharged as a concentric stream which coaxially surrounds the central stream, and so that the momentum of the central stream is maintained.  The effective flame heating distance thereby may be extended during preheating, and the block assembly may be moved back from the workpiece a significant standoff distance so as to avoid damage from dislodged molten metal slag.
Patent CA-2102448-C (CA)
Inventor: SCHRECK RICHARD MICHAEL
IPC: B01J13/00
Filed: 1993-11-04
Granted: 1998-04-21
Abstract: A method is provided for forming a sand core which is suitable for use in casting processes, and in particular squeeze casting processes, to form internal features and intricate external features of a cast article. The core forming method involves the use of a single-component gelatin binder whose degradation at elevated temperatures is catalyzed by additions of a ferric compound. The gelatin binder is a mixture of proteins derived from amino acids such as glycine, L-proline, alanine, L-glutamic acid, L-aspartic acid, and/or small percentages of others, such that the gelatin binder is water soluble and therefore easily eliminated from the core sand at the end of the casting process. Due in particular to the presence of the ferric compound, the gelatin binder readily degrades at low temperatures, such as those associated with aluminium casting processes, such that the core degrades sufficiently to permit the sand to freely flow from the cast article without the need for core removal operations. Finally, the gelatin-based binder is nontoxic, such that its elimination from the sand to reclaim the sand for reuse does not pose an environmental hazard.
Patent CA-2104046-C (CA)
Title: Adhesive compositions, wound dressings and methods
Inventor: CHEN YEN-LANE
IPC: A61L15/58
Filed: 1993-08-13
Granted: 1998-09-15
Abstract: Hydrocolloid adhesive compositions are disclosed comprising a hydrophobic unsaturated aliphatic homopolymer, a compatible tackifier, and at least one hydrocolloid absorbent. The compositions have enhanced resistance to breakdown by body fluids, adjustable absorbency, improved adhesive and cohesive properties, as well as a reduced tendency to leave an adhesive residue after application. Also disclosed are wound dressings, ostomy or prosthesis adhesives, methods of using wound dressings, and methods for forming the hydrocolloid adhesive compositions.
Patent CA-2106445-C (CA)
Title: Support stay
Inventor: SYDOR ROBIN M
IPC: A61F5/02
Filed: 1993-09-17
Granted: 1997-11-25
Abstract: A support stay for use with an article to be worn by a person has two durometers of hardness.  The support stay includes a base member having a first hardness, the first hardness sufficient to provide a required rigidity for support.  A gripping member is operatively connected to the base member and has attachment areas which extend beyond the ends of the base member.  The gripping member has a second hardness which is softer than the first hardness.  The gripping member, when attached to the inner surface of the article by attachment areas, provides a non-slip surface against the person wearing the article to keep the article in position.
Patent CA-2109421-C (CA)
Title: Improvements to building construction methods and materials
Inventor: YEATES JOHN ASHLEY
IPC: E02D5/08
Filed: 1992-04-29
Granted: 2003-04-08
Abstract: A wide sheetpile (1) for the formation of build-ings folded or formed from a metal plate or plates or by joining modular panels. The sheetpile (1) is of corrugat-ed form having upper and tower webs (3) and (4) joined by an inclined flange (5) and provided on opposite sides with jointing members (6) and (7) to enable the sheetpile to be connected to adjacent sheetpiles. The sheetpile (1) may incorporate a lateral stiffener or stif-feners (3). There is also disclosed pile driving apparatus for driving a sheetpile member into the ground, said ap-paratus including a pile driving frame (70) for support-ing driving means (78, 79) for applying a driving force to a said sheetpile member and means (74, 77) for coup-ling said pile driving frame (70) to an adjacent said sheetpile member (76) in the ground.
Patent CA-2110189-C (CA)
Title: A notebook type information processing apparatus having input function with pen
Inventor: HONJO KAORI
IPC: G06F1/16
Filed: 1993-11-29
Granted: 1999-06-15
Abstract: A notebook type information processing apparatus allows easy manipulation and reduces operator fatigue.  The apparatus has a display and an apparatus body.  The display has a screen on one side for displaying data and a support supporting the screen rotatably.  A first connector is provided on the bottom of the support and is connectable to the apparatus body mechanically and electrically.  A latch is rotatable 180 degrees for locking the display to the apparatus body in either a normal position or a position turned over in the front-and-rear direction.  The apparatus body has a groove engageable with the support and located at the rear of a keyboard used to enter data and commands.          A second connector is positioned in the groove and connectable to the first connector mechanically and electrically.  A pair of rotatable levers is engageable with opposite ends of the support for locking the display.  A control section is provided for generating control signals meant for the screen.  A position detecting circuit determines electrically whether the display is mounted in the normal position or not.  A selector circuit selectively outputs the control signals from the control section on the basis of the output of the detecting circuit.
Patent CA-2112766-C (CA)
Title: A data processing system
Inventor: PARADINE CHRISTOPHER
IPC: G06T19/00
Filed: 1994-01-04
Granted: 1999-05-18
Abstract: The present invention provides a data processing system of the type which allows models of objects to be processed by interaction with an image representing the object in order to manipulate the model data; a method of operation a data processing  system  is  also provided.  The data processing system of the invention comprises a display device,  entry means for enabling a user to enter data representing lines or surfaces of a model,  such model data being stored in a storage device, and a retrieval means for retrieving model data  from  the  storage  device  and  displaying  the  image represented by such model data on a screen of the display device. The system is characterized by the combination of: a hand-held pointing device  adapted to  cooperate with the screen, for enabling the user to engage a particular point of the screen; a registering means for registering when the pointing device is engaging the screen and for determining the  particular  point  of  the  screen  that  is  engaged; association means for associating details of the particular point of the screen engaged with a corresponding point in the model data;  and a processor,  responsive to input from said  registering  means,   for  repetitively  applying  a smoothing function to the model data while the registering means indicates that the pointing device is engaging the screen,  the model  data  as  smoothed being  stored in the storage  device  after  each  application  of  the  smoothing function.  The  processor  is  further  responsive  to  the association means for adapting the  smoothing function so that its smoothing effect on a particular bit of model data is dependent on a distance measure between that particular bit of model data and the point in the model data identified by the association means. The retrieval means is employed to update the image on the screen at predetermined intervals with a new image representative of the new smoothed data.