baber/WOPTO huggingface dataset:
Patent CA-2242165-A1 (CA)
Inventor: POKLUKAR JOSEF GEORG
IPC: B26D7/01
Filed: 1998-08-06
Abstract: The invention is in the technical field of packaging and relates to a method and apparatus for perforating webs and sheets of varied construction on a variety of web processing equipment.      The perforations are accomplished on an advancing web by means of an apparatus which incorporates a rotating cylinder with multiple pins.Stationary knives interact with rotating pins on the pin-cylinder,thereby perforating holes.      Perforated holes in the web or sheet thus made,have a distinct and unique configuration.      A great variety of perforating patterns can be obtained by either changing pin location on the pin-cylinder, by disengaging knives on the knife-support, or by varying the rotational speed of the pin-cylinder while keeping web-speed unchanged.      The perforating action of all pins on the pin-cylinder can be interrupted for any length of time by lowering the knives which are normally in a fixed position and consequently restoring the original position of the knives to continue the process of perforation.      Individual cutouts,thumb-notches and various designs can be perforated in webs and sheets by special pin location and by adapting a four-way operable carriage to the perforating apparatus.
Patent CA-2243511-A1 (CA)
Title: Aromatization of soluble beverages
Inventor: CARNS LAWRENCE G
IPC: A23L27/00
Filed: 1997-01-28
Abstract: A process for incorporating an aroma-containing substrate into a soluble beverage powder in a filling machine in which the soluble beverage powder is filled into containers. The soluble beverage powder is introduced into the filling machine and caused to flow in the form of a moving bed. While in the filling machine and prior to the soluble beverage powder being filled into containers, the aroma-containing substrate is sprayed onto the moving bed. In this way, a mixture of soluble beverage powder and aroma-containing substrate having a substantially constant ratio of aroma-containing substrate to soluble beverage powder, is provided in the containers.
Patent CA-2246203-A1 (CA)
Title: Novel butyrolactones with antifungal activity
Inventor: PAULITZ TIMOTHY C
IPC: C07D307/60
Filed: 1998-08-31
Abstract: The bacterium Pseudomonas aureofaciens 63-28 is antagonistic to several plant pathogenic fungi, including Pythium spp. The bacterium produced at least four antifungal metabolites active against Pythium ultimum and Phytophthora cryptogea when tested in culture for antifungal activity. Three of these compounds were identified as the novel butyrolactones: 3-(1-hexenyl)-5-hydroxymethyl-2,5(I-~furanone (alternate nomenclature: (Z)-4-hydroxymethyl-2-(1-hexenyl)-2-butenolide), 3-(1-hexenyl)-5-hydroxy-5-methyl-2,5(H)furanone (alternate nomenclature: (Z)-4-hydroxy-4-methyl-2-(1-hexenyl)-2-butenolide) and 3-(1-hexenyl)-5-methyl-2,5(H)furanone, respectively, by using NMR and GC-MS. All compounds were different from other antibiotics produced by Pseudomonas spp., including pyoluteorin, pyrrolnitrin, and 2,4-diacetylphloroglucinol, as determined by HPLC. This is the first report of butyrolactones with antifixngal activity produced by a saprophytic Pseudomonas spp.
Patent CA-2246915-A1 (CA)
Title: Process for the removal of water, co2, ethane and c3+ hydrocarbons from a gas stream
Inventor: KALBASSI MOHAMMAD ALI
IPC: C07C7/12
Filed: 1998-09-09
Abstract: A process is set forth for the selective removal of water, CO2, ethane and C3+ hydrocarbons from gas streams, particularly a natural gas stream comprising primarily methane. The process comprises contacting the gas stream with an adsorbent material consisting exclusively of one or more compounds which are basic (i.e. compounds which, when contacted with a pH neutral aqueous solution, cause such solution to have a pH greater than 7.0) and which are mesoporous (i.e. compounds which have moderately small pores providing a surface area less than 500m2/g). A key to the present invention is that the adsorbent material is selective for the removal of all the impurities noted above, thereby eliminating the need for a separate impurity-specific adsorbent such as an adsorbent specific for the removal of CO2 and/or an adsorbent specific for the removal of water. Typical mesoporous adsorbents which are useful in the present invention include zinc oxide, magnesium oxide and, in particular, activated alumina.
Patent CA-2246983-A1 (CA)
Inventor: LIN LI SHINH
IPC: G01B3/10
Filed: 1998-09-14
Abstract: Disclosed herein is a tape measure with innovated brake structure characterized in that the brake mechanism comprises a release key, a brake, and a stopper. The upper end of the brake is in connection with the release key, and an intermediate protrusion of the brake directly presses its upper end so as to control the stopper able to be tightly pressing the tape surface against a stop block provided thereunder. By the above described structure, the user may press the release key with a finger to retract the extended tape after measurement work has been completed. When the release key is released, the brake actuates the stopper to directly press the tape surface against the stop block thereby halting the tape therebetween and the braking function is thus performed.
Patent CA-2248569-A1 (CA)
Title: Biodecontamination reactor
Inventor: NGAWOOFAH TREVOR SIMON
IPC: B09C1/10
Filed: 1997-03-13
Abstract: A composite bioreactor and a method of using same is described. The bioreactor (10) comprises a combination of a sulphur oxidising bacteria (SOB) bioreactor (12) directly on top of a sulphate reducing bacteria (SRB) bioreactor (14);  the SOB bioreactor (12) comprising a heap of said soil to be remediated and having suitable microorganisms therein to react with and degrade contained contaminants; said SRB bioreactor comprising trough means (18) having support means to support said soil heap associated with an opening thereof, said support means having a permeable membrane (16) associated therewith to allow passage of liquid but substantially no soil and sulphur reducing bacteria within said trough means (18); and liquid and nutrient supply means to promote growth of said sulphur oxidising bacteria and said sulphate reducing bacteria within said composite bioreactor.
Patent CA-2251011-A1 (CA)
Inventor: VITAL JEAN-LOUIS
IPC: C02F3/06
Filed: 1997-03-24
Abstract: Filtre double flux pour l'épuration biologique d'effluents et notamment de l'eau comportant au moins deux cellules de filtration, disposées en série, en liaison hydraulique, de manière à être parcourues successivement par l'effluent à traiter, caractérisé en ce que la première cellule de filtration (1) est du type à flux ascendant et la seconde cellule de filtration (2) est du type à flux descendant, et en ce qu'il comporte un caisson intermédiaire (4) disposé entre les deux cellules de filtration successives (1, 2) ce caisson intermédiaire étant pourvu de moyens d'aération (5), avec une circulation des flux dirigée à l'aide d'une cloison siphoïde (6).
Patent CA-2251694-A1 (CA)
Inventor: HENRICH THOMAS
IPC: A61F13/49
Filed: 1997-03-20
Abstract: Absorbent articles such as disposable diapers, incontinent briefs, diaper holders, training pants and the like, having elastomeric ear panels and a fastening system that provides the user with different options as to how the absorbent article may be fitted to and removed from the wearer. The absorbent articles allow the wearer to choose between conventional and pull-on diaper configurations, or combinations thereof, and properly and comfortably fit a large range of wearer sizes. Further, the absorbent articles can be pulled on and/or off as a pant. This feature is provided by the ear panels which maintain sufficient tension to hold the diaper on the wearer throughout the period of use without harming the wearer's skin, while providing enough stretch to allow the diaper to be pulled up or down over the wearer's hips. The fastening system is refastenable for convenience yet strong enough to maintain the diaper in a fastened configuration without becoming detached if the diaper is pulled on or off the wearer.
Patent CA-2253932-A1 (CA)
Inventor: HARPER FRANK D
IPC: D21F11/14
Filed: 1998-03-31
Abstract: The present invention relates to a soft, thick, single-ply tissue and to a process for the manufacture of such tissue product having a basis weight of at least about 15 lbs./3,000 square foot ream and having low sidedness, said tissue exhibiting a specific total tensile strength of between 40 and 75 grams per 3 inches per pound per 3000 square feet ream, a cross direction specific wet tensile strength of between 2.75 and 7.5 grams per 3 inches per pound per 3000 square feet ream, the ratio of MD tensile to CD tensile of between 1.00 and 2.75, a specific geometric mean tensile stiffness of between 0.5 and 1.2 grams per inch per percent strain per pound per 3000 square feet ream, a ratio of product cross direction stretch to base sheet cross direction stretch of at least about 1.4, a friction deviation of less than 0.225, and a sidedness parameter of less than 0.275.
Patent CA-2261509-A1 (CA)
Inventor: BARNARD CHRIS WILHELM
IPC: H04B10/07
Filed: 1999-02-11
Abstract: A method of equalizing the channels of a WDM link comprises identifying an error threshold level BER Fail for the BER defined for each signal S(j) in accordance with the channel rate, and determining the attenuation A(j) of, for example, the power P(j) of each signal S(j) transmitted over the WDM link. The transmitter powers are adjusted taking into account the attenuations determined for all channels. The attenuation A(j) for channel (j) is determined by first setting the power P(j) of all signals S(j) to a maximum P Max, attenuating the power P(j) of channel (j) until the BER reaches the threshold value BER Fail, measuring the power corresponding to the BER Fail for that channel, and calculating the difference between the P Max and P(j)Fail. The transmitter powers are then set according to the relationship P(j)=P Max-~ (A(j)-A Min), where ~ is 0.8 for a system with 3-4 channels. The method may be used for multi-channel systems with intermediate nodes where channels are added and dropped.
Patent CA-2263540-A1 (CA)
Inventor: DING HEPING
IPC: H04M9/08
Filed: 1997-08-08
Abstract: A system and method for dynamically optimizing the analog gain for a microphone in a telephone terminal operable in handsfree mode. The system makes use of a process whereby a relatively inexpensive analog to digital converter is used to meet gain requirements so as to accommodate the loudest echo through transmit path while maintaining an acceptable signal to noise ratio for the quietest talker. The system digital signal processor in conjunction with speech activity detection means is used to provide an optimum microphone gain under all circumstances.
Patent CA-2264577-A1 (CA)
Title: Traitement de la spasticite et des convulsions a l'aide de depresseurs du systeme nerveux central constitues d'acide isovalerique
Inventor: ARTMAN LINDA D
IPC: A61K36/18
Filed: 1997-08-29
Abstract: Des préparations et des extraits de valériane, ainsi que d'isovaléramide, d'acide isovalérique et de leurs sels, esters et amides substitués pharmaceutiquement acceptables, présentent des propriétés pharmacologiques significatives d'un point de vue clinique, lesquelles impliquent un traitement de divers états pathologiques, notamment de la spasticité et des convulsions, états qui sont soulagés par une diminution douce de l'activité du système nerveux central. Les compositions en question sont, d'une manière générale, non cytotoxiques et elles ne provoquent pas d'activité de faiblesse ou sédative à des doses efficaces pour le traitement symptomatique de ces états pathologiques.
Patent CA-2267015-A1 (CA)
Inventor: WATANABE JUN
IPC: B32B15/08
Filed: 1999-03-25
Abstract: A laminated film comprises at least an aluminum layer and, superimposed on one side thereof by extrusion lamination, a linear low-density polyethylene layer, this linear low-density polyethylene layer prepared with the use of a metallocene olefin polymerization catalyst and having a density of 0.895 to 0.930 g/cm3 and an MFR (190°C) of 0.1 to 100 g/10 min, wherein the linear low-density polyethylene layer at its surface exhibits an oxygen concentration of linear low-density polyethylene per se ranging from 1.0 to 1.4 atomic %. The laminated film which has an excellent balance of aluminum bond strength and heat sealing properties of linear low-density polyethylene layers and it can be provided at low cost. Further, a laminated film comprising at least the linear low-density polyethylene layer, the aluminum layer and a substrate layer arranged in this order can be provided at low cost by adding a layer or layers to the laminated film obtained by the extrusion lamination. This laminated film is suitable to, for example, a packaging material for dry food.
Patent CA-2270390-A1 (CA)
Title: Anode, process for anodizing, anodized wire and electric device comprising such anodized wire
Inventor: HERNNAES BO
IPC: H01B13/00
Filed: 1997-11-04
Abstract: An anode for batch anodizing of a conductor wire of metal (5). The anode comprises, in addition to the wire, a holder with three or more guide cams (4a, 4b, 4c) to support and hold the wire in the desired position during the anodizing process. The guide cams are arranged with guide slots in which the spirally wound wire is fixed so as to obtain a space between the turns of the wire of the spirally wound conductor wire. The wire is connected at both ends to the positive pole of a current source and the holder and the wire are immersed into an electrolyte during the anodizing.
Patent CA-2272765-A1 (CA)
Inventor: LAPORTE YVAN
IPC: B65H19/12
Filed: 1999-05-20
Abstract: The roll support (10) is used for removably connecting a suspended roll (12) to a housing (14). The support (10) comprises two opposite supporting assemblies (20), each located on a respective side (22,24) of the housing (14). Each assembly (20) comprises a plate member (30) operatively connected to the housing (14) and pivotable around a horizontal pivot axis. A spring (50) forces a surface of the plate member (30) toward the horizontal. A suspension member (60) is pivotally connected to the housing (14) for supporting a respective side of the roll (12). The roll support (10) provides a simple mechanism for removably connecting a suspended roll (12) to a housing (14) without the need of manually inserting a mandrel through the spool (16) of the roll (12). A method for connecting a suspended roll (12) to a housing (14) is also disclosed.
Patent CA-2274311-A1 (CA)
Title: Streptococcus pneumoniae dna sequences
Inventor: PEERY ROBERT BROWN
IPC: C12P21/04
Filed: 1997-12-09
Abstract: Nucleotide fragments of the genome of the bacterium Streptococcus pneumoniae are provided. Also provided are ORFs encoded by said genome.
Patent CA-2275200-A1 (CA)
Title: Temperature sensitive adhesive composition
Inventor: DUSENBERY CASEY LYNN
IPC: A61L15/62
Filed: 1997-12-12
Abstract: A temperature-triggerable water soluble adhesive composition comprising a poly (vinyl alkyl ether), preferably poly (vinyl methyl ether) and a hydrophobic polymer, preferably a hydrophobic polystyrene resin or an acrylate. The adhesive composition of the present invention retains its integrity at fluid temperatures above approximately 33 ~C, but is water soluble at fluid temperatures below approximately 22 ~C. The adhesive composition of the present invention may be disposed of by flushing in a conventional toilet.
Patent CA-2276075-A1 (CA)
Inventor: GUYTON WILLIAM ALFRED
IPC: G01V1/00
Filed: 1999-06-22
Abstract: A system for seismic data acquisition has been invented having, in certain aspects, one or multiple distributed data acquisition subsystems that are independent of energy source controller and/or of navigation system operation. Thus the distributed acquisition systems) do not require a complicated and burdensome interface to the energy source controller or navigation systems. The seismic data acquisition system supplies a continuous flow of data which is buffered within a centralized data repository for short term storage until required by non-real-time processes. A seismic data acquisition method has been invented that replaces conventional closely coupled interaction between seismic acquisition systems and the energy source controller and the navigation systems by utilizing GPS time stamps on both the data as well as cycling events of the energy source controller and/or navigation systems to insure precise association of seismic data with cycling events. By continuously acquiring data with no interruption in the acquired data flow, association with energy source or navigation events may be accomplished at a latter point in time and not in the real-time operation of the acquisition subsystem.
Patent CA-2278399-A1 (CA)
Title: Bleaching process
Inventor: MCLEAN IAN ALEXANDER
IPC: D21C9/16
Filed: 1999-07-21
Abstract: A process is provided herein for peroxide bleaching of pulp using magnesium oxide or magnesium hydroxide as a substitute for caustic soda. The process includes the first step of treating pulp using a peroxide bleaching solution comprising a peroxide and at least one of magnesium oxide and magnesium hydroxide. The process includes the next step of maintaining the concentration of Mn to less than 10 ppm and the concentration of Fe to less than 20 ppm by selecting a chelating agent and adding the selected chelating agent to the peroxide bleaching solution in accordance with the following criteria, namely (a) monitoring a concentration of Mn in the peroxide bleaching solution and, when the Mn concentration is greater than 10 ppm, adding a chelating agent which is selected from the group consisting of DTMPA, DTPA, EDTA and HEDTA, and (b) monitoring the concentration of Fe in the peroxide bleaching solution and, when the Fe concentration is greater than 20 ppm, adding a chelating agent which is selected from the group consisting of an alkali, metal silicate and DTPMPA. In this way, a maximum target ISO  brightness of 80 is achieved.
Patent CA-2280489-A1 (CA)
Inventor: KELLER JAMES
IPC: H04N5/52
Filed: 1999-08-18
Abstract: An RF power amplifier control system includes a group of power amplifier modules for amplifying an RF signal. Each group includes first and second group controllers controlling the operation of the power amplifier modules including turning on and turning off each of the modules within the group. The first group controller is on for controlling the amplifier operation and the second group controller is turned on for controlling the operation only when the first controller is turned off. First and second central controllers are provided for, controlling the operation of the first and second group controllers. The first central controller is to provide the control operation and the second central controller monitors the operation of the first controller and performs the control operation in the event that the first central controller malfunctions.
Patent CA-2280771-A1 (CA)
Inventor: GOLDMAN STEPHEN ALLEN
IPC: C01B31/16
Filed: 1998-02-09
Abstract: Disclosed are compositions comprising at least one cationic ion-exchange hydrogel-forming polymer and at least one anionic ion-exchange hydrogel-forming polymer, wherein the composition exhibits improved absorbency characteristics relative to comparable mixtures of the hydrogel-forming polymers in their neutralized state. Also disclosed are mixed-bed ion-exhange compositions having improved Performance Under Pressure values relative to prior mixed-bed compositions, which, e.g., alleviate detrimental gel blocking incurred with these prior systems. Also disclosed are absorbent members useful in the containment of body fluids such as urine, that have at least one region comprising a mixed-bed ion-exchange hydrogel-forming absorbent polymer composition in a concentration of from about 60 to 100% by weight.
Patent CA-2281147-A1 (CA)
Title: Method and apparatus for relaying communication
Inventor: RUPERT AMY J
IPC: H04L12/66
Filed: 1999-08-26
Abstract: The invention provides a telecommunication relay device that relays communication from a first party to at least one second party. The first party and the second party may use terminals of different types such as telephone stations, text telephones, two-way pagers, personal digital assistants with communication capabilities, data network terminals, etc. The telecommunication relay device converts text received from text terminals into voice for voice terminals and converts voice to text and vice versa. The telecommunication relay device also permits the first party to leave messages for other parties. For example, the first party may send an e-mail message using a telephone station or receive an e-mail using a telephone station. In addition, the telecommunication relay device may open a private chat room to allow communication between data network terminals and telephone stations, for example. The telecommunication relay device may also provide conferencing capability where the conferees may use different type terminals.
Patent CA-2282806-A1 (CA)
Inventor: FREDER NEIL
IPC: B42D12/00
Filed: 1999-09-17
Abstract: A system for permanently marrying a deposit ticket to a security bag is disclosed. The system includes a deposit ticket provided with a first sequential indicia at a location thereon and having at least one detachable label integrally formed in another location thereon where the label bears the first sequential indicia. A security bag having at least one pouch includes an area for permanently fixing at least one detachable label of the deposit ticket so that when the detachable label is affixed to the security bag, the bag can be traced with the sequential indicia. The present invention is safer and less susceptible to fraud. The invention is also concerned with a method for accurately tracing a security bag with a corresponding deposit ticket.
Patent CA-2286914-A1 (CA)
Title: Process for producing 1-chlorocarbonyl-4-piperidinopiperidine or hydrochloride thereof
Inventor: HIROTA HIROSHI
IPC: C07D211/60
Filed: 1998-03-31
Abstract: The present invention provides a highly safe and easily operable process for producing 1-chlorocarbonyl-4-piperidinopiperidine or hydrochloride thereof in a high yield.      Described specifically, the present invention relates to a process for producing 1-clorocarbonyl-4-piperidinopiperidine or hydrochloride thereof, which comprises reacting 4-piperidinopiperidine with a trialkylsilyl halide to obtain a 4-piperidinopiperidinyl trialkylsilyl, reacting it with a carbon dioxide gas to obtain a 4-piperidinopiperidinyl trialkylsilyl carbamate derivative, reacting the derivative with thionyl chloride or the like to obtain 1-chlorocarbonyl-4-piperidinopiperidine hydrochloride and optionally treating it with a strong base.
Patent CA-2289949-A1 (CA)
Title: Reader for rfid system
Inventor: TROESCH PETER
IPC: H04B1/59
Filed: 1998-05-14
Abstract: A reader capable of efficiently reading tags of differing protocols in a radio frequency identification system.
Patent CA-2290974-A1 (CA)
Title: Solubilized sertraline compositions
Inventor: HERBIG SCOTT MAX
IPC: A61K47/12
Filed: 1998-06-15
Abstract: Compositions of matter comprising sertraline and a solubilizing agent which increases the solubility of sertraline in aqueous chloride ion-containing use environments.
Patent CA-2291388-A1 (CA)
Title: Purification of gases
Inventor: HSIUNG THOMAS HSIAO-LING
IPC: C01B32/40
Filed: 1999-11-25
Abstract: Carbon monoxide is removed from air prior to cryogenic separation of oxygen and nitrogen. Feed air is compressed and the heat of compression is used without further heating to drive catalytic oxidation of CO to CO2 over a Pd and/or Pt on alumina catalyst followed by adsorption of water initially present and then either adsorption of hydrogen or oxidation of hydrogen to water and its removal by adsorption, along with carbon dioxide.