baber/WOPTO huggingface dataset:
Patent CA-2141617-A1 (CA)
Inventor: HESKETH JOHN
IPC: H05B41/298
Filed: 1993-07-30
Abstract: 2141617 9404011 PCTABS00030 The invention is concerned with a fluorescent tube driver arranged to be supplied by a direct voltage source (particularly a voltage source less than 50 volts, preferably 24 volts nominal) and having a tube drive output in the range 10 to 100 watts of arc power (preferably 10 to 40 watts) with a frequency of oscillation in the range 15 to 50 KHz (preferably 32 KHz nominal), the driver comprising an arc waveform transformer (22), the primary winding (23) of which is supplied with a variable drive current derived from the low voltage source (15), and the secondary winding (25) of which is adapted to be connected to the electrodes (13, 14) of a fluorescent tube (12), such that in use an alternating tube arc current will flow through the secondary winding and tube. The drive includes a closed loop control system (31-44) provided for maintaining substantially constant the tube arc current by varying the amplitude of the arc current waveform without varying the pulse width. This extends the tube life and reduces the wasted heat.  The arc transformer driver (24) and arc current are selected to give a symmetrical arc waveform with a constant waveform duty cycle in the range 90 to 95 %, and a tube arc power less than 90 % of the rated tube power, and to maintain at a constant value in the range 1.3 to 1.5 the arc crest factor.
Patent CA-2144327-A1 (CA)
Title: Transcutaneous in vivo activation of photosensitive agents in blood
Inventor: RICHTER ANNA M
IPC: A61K31/365
Filed: 1993-09-20
Abstract: A method destroys or impairs target cells that have selectively accumulated a photosensitizing agent. The target cells are in the bloodstream of an intact animal, which bloodstream and animal further contain non-target cells. Radiation is applied tran-scutaneously to at least a portion of the intact animal at an intensity effective to impair or destroy selectively the target cells and to leave non-target cells relatively unimpaired. Target cells include leukemia cells, virus-containing cells, parasite-containing cells, and microorganisms such as bacteria, parasites and free viruses.
Patent CA-2144670-A1 (CA)
Title: Dispositif numerique de recuperation large bande d'une porteuse
Inventor: KIMIAVI MANI
IPC: H04L27/00
Filed: 1995-03-15
Abstract: Dispositif numérique de récupération large bande d'une porteuse L'invention concerne un procédé de commande d'un dispositif de récupération de porteuse numérique destiné à être intégré dans un étage de démodulation d'un récepteur d'un signal numérique. L'étage de démodulation comprend également un dispositif de détection de récupération de porteuse.   Le dispositif de récupération de porteuse comprend un filtre de boucle (50) comprenant un sommateur (38) suivi par une bascule (39) fonctionnant au temps symbole, des moyens de commutation (51) étant placés entre le sommateur (38) et la bascule (39). Le procédé consiste à piloter les moyens de commutation (51) pour alternativement appliquer à la bascule (39): - un mot de commande (SCAN) dont l'évolution (INC) entre deux applications successives à la bascule (39) est inférieure à la bande d'accrochage du dispositif de récupération de porteuse (22) ; - le signal de sortie du sommateur (38).    On déplace ainsi la bande d'accrochage par rapport à la plage de maintien du dispositif de récupération de porteuse (22).
Patent CA-2145178-A1 (CA)
Title: Substituted kynurenines, a process for their preparation, and use as medicaments
Inventor: SCHWARCZ ROBERT
IPC: C07C229/36
Filed: 1994-07-15
Abstract: The present invention relates to the use in the treatment of cognitive disorders associated with the aging processes of the brain and perinatal brain disorders of compounds which act as inhibitors of the enzyme kynurenine aminotransferase (KAT). The present invention also provides, as novel compounds, a selected class of KAT inhibitors which are the compounds of formula (IA), wherein R is halogen, C1-C6 alkyl, C5-C7 cycloalkyl, phenyl-C1-C4 alkyl, C1-C6 alkoxy, C6-C10 aryloxy, phenyl-C1-C4 alkoxy or trifluoromethyl, and R1 is hydroxy, C1-C6 alkoxy, amino, mono-C1-C6 alkylamino, di-C1-C6 alkylamino, hydroxylamino, C1-C4 alkoxyamino or benzyloxyamino, with the provisos that: (i) when R1 is hydroxy and, at the same time, R is halogen, then this halogen is not fluorine; and (ii) when R1 is hydroxy and, at the same time, R is C1-C6 alkyl, then this C1-C6 alkyl is not methyl, either as a single isomer or as a mixture of isomers, and the pharmaceutically acceptable salts thereof.
Patent CA-2145682-A1 (CA)
Inventor: PEET NORTON P
IPC: A61K31/7064
Filed: 1993-09-02
Abstract: Divulgation d'analogues de l'adénosine qui ont une affinité pour les récepteurs de l'adénosine et qui agissent généralement comme des agonistes de l'adénosine. Des études in vitro ont révélé qu'il est possible de distinguer des effets physiologiques spécifiques par suite de cette affinité avec les récepteurs de l'adénosine et que l'affinité in vitro concorde avec l'affinité in vivo. Des préparations pharmaceutiques des composés en question peuvent être constituées en fonction de l'activité de liaison sélective des composés ci-dévoilés et amélioreront certains effets physiologiques tout en réduisant d'autres effets, comme abaisser la pression artérielle sans réduire le rythme cardiaque.
Patent CA-2145718-A1 (CA)
Title: Optical inspection of container dimensional parameters
Inventor: KIRKMAN JAMES A
IPC: G01B11/08
Filed: 1995-03-28
Abstract: Apparatus for inspecting the inside diameter of a container mouth that includes a light source for directing light energy into the container, and a light sensor disposed with respect to the source and the container to receive light energy transmitted out of the container through the mouth.  A telecentric lens directs onto the light sensor light energy transmitted through the container mouth substantially axially of the container mouth.  The light energy is focused through an iris onto a matrix array sensor, which develops a two-dimensional image of the container mouth.   The matrix array sensor is coupled to image processing electronics for determining or calculating a circle of greatest diameter that will fit within the two-dimensional image of the container mouth, and treating such circle as indicative of the effective diameter of the container mouth.
Patent CA-2147091-A1 (CA)
Title: Signal coupler
Inventor: BIRAN BERNARD
IPC: H04M11/06
Filed: 1995-04-13
Abstract: The present invention relates to a signal coupler for coupling Plain Old Telephone Service (POTS) signals and Asymmetric Digital Subscriber Line (ADSL) signals to a common line  (TL).  In order  to avoid  saturation of  inductances (L1,L2,L3,L4) of a low pass POTS filter (LPF) located between the POTS transmitter/receiver (PTR) and this common line (TL) when the POTS signal is not sufficiently attenuated by this common line  (TL),  a variable impedance  (SL)  is  inserted between the POTS transmitter/receiver (PTR) and this low pass POTS filter (LPF).  The value of this variable impedance (SL) is controlled by a control signal (CS) supplied by the ADSL transmitter/receiver (ATR) which measures the attenuation caused by this common line (TL).
Patent CA-2147800-A1 (CA)
Title: Circular anastomosis device
Inventor: ROBERTSON JOHN CHARLES
IPC: A61B17/28
Filed: 1995-04-25
Abstract: A surgical instrument for performing a circular anastomosis is disclosed. The instrument has preferred features which include a tissue piercing tip with a protective cover and various structures for controlling staple formation.
Patent CA-2148429-A1 (CA)
Title: Tibial milling guide system
Inventor: BERTIN KIM C
IPC: A61B17/58
Filed: 1995-05-02
Abstract: A tibial milling guide which incorporates a combination of instruments for producing a planar surface on a portion of the tibia using a milling device.  The system includes: an extramedullary alignment guide with a detachable reference guide, an adjustable milling base assembly, a detachable milling template, a sizing gauge, and a milling depth gauge. The reference guide is used to position the alignment guide to the tibia. The reference guide has a T-shaped member which provides a planar reference and a centering reference to the tibial head. The reference guide also allows the surgeon to set the rotational alignment before the alignment guide is secured in place. The adjustable milling base assembly is also detachably connected to the alignment guide. The milling base assembly includes a slide and a shiftable base that allows for lateral adjustments of the template with respect to the articular surface after the alignment guide has been properly secured to the tibia. The milling base is also extensibly connected to the alignment guide to allow the spacing between the articular surface and the template to be adjusted.
Patent CA-2148813-A1 (CA)
Title: System for compiling algorithmic language source code into hardware
Inventor: DOWLING ROBERT
IPC: G06F17/50
Filed: 1993-11-05
Abstract: 2148813 9410627 PCTABScor01 A configurable hardware system for implementing an algorithmic language program, including a programmable logic device (PLD) (11), a hardware resource connectible to the PLD (e.g. 13), and a programmable connection (e.g. 58), all of which may be configured as a module or distributed processing units (DPU) (80). The hardware resource may include a serial processing device such as a DSP  (28), a PLD (11), a memory device (27), or a CPU. An extensible processing unit (EPU) can be built out of multiple DPUs, each connected to other modules by one or more of several buses. In addition, a method is provided for translating source code (201) in an algorithmic language into a configuration file (207, 208, 209) for implementation on one or more DPUs. The method includes four sequential phases of translation: a tokenizing phase, a logical mapping phase, a logic optimization phase, and a device specific mapping phase.
Patent CA-2149270-A1 (CA)
Title: Process for retreading a used tire
Inventor: EDLER KURT
IPC: B29K21/00
Filed: 1995-05-12
Abstract: Process for retreading a used tire (2), whereby the running tread of the tire (2) is ground off and/or roughened, whereby a layer (3) of a binder rubber is further applied onto the surface of the tire, a closed ring of a new running tread (1) is applied over the binder rubber (3), the air between the binder rubber (3) and the running tread (1) is removed, and the running tread (1) is attached to the tire (2) by vulcanizing the binder rubber (3) located between the running tread (1) and the tire (2).  A plurality of mutually inter-connected channels (12) are thereby provided between the binder rubber (3) and the inside surface of the running tread (1), which channels (12) terminate at a distance from the lateral edges of the running tread (1) and which communicate with at least one opening (14) extending through the running tread (1), after the running tread (1) has been placed on the tire (2) the lateral edges (13) of the running tread (1) are air-tightly connected with the sidewalls of the tire (2) by vulcanizing the binder rubber located there, the air located between the remaining running tread (1) and the binder rubber (3) is aspirated off through the channels (12) and through the least one opening (14) provided in the running tread (1), and the remaining running tread (1) is subsequently attached at the tire (2) by vulcanizing the binder rubber (3) between the running tread (1) and the tire (2).
Patent CA-2150258-A1 (CA)
Title: Automated drug infusion system
Inventor: JOHNSON NOEL L
IPC: G16H20/17
Filed: 1993-11-15
Abstract: The present invention relates to a control system for use with an automated intravenous drug and fluid infusion system having plulal pumping channels (4, 6, 8 10) that operate independently for intravenously infusing drugs and fluid. The pumping channels (4, 6, 8, 10) are controlled by a microprocessor-based host controller (2) that nitors each of the channels concurrently.  In an exemplary embodiment, the system functions include preventing priming of a channel unless verification is provided that the channel is not connected to a patient and initiating the priming of each of the pumping channels independently.
Patent CA-2151047-A1 (CA)
Inventor: KAMPF ROLAND
IPC: C02F1/48
Filed: 1994-02-25
Abstract: Procédé et dispositif, notamment de traitement d'un fluide, lequel dispositif comprend au moins un boîtier (1) en plusieurs parties et au moins un aimant permanent (36) susceptible d'être monté sur un support (35). Le boîtier (1) s'étend sur au moins une partie de la circonférence extérieure du support (35) et des éléments adaptateurs constitués de supports individuels (22) d'aimants et d'éléments de positionnement (21) reçoivent un nombre librement sélectionnable d'aimants permanents (36) de dimensions diverses dans le sens axial du support (35). On peut ainsi sélectionner le nombre d'aimants (36) en fonction de la composition du fluide et les monter dans le boîtier (1), de façon à adapter individuellement le champ magnétique au fluide et à assurer un effet optimal du champ magnétique sur le fluide.
Patent CA-2153869-A1 (CA)
Title: Powder Bleaching Compositions for Hair and Method of Use Thereof
Inventor: CASKEY PAUL F
IPC: A61K8/19
Filed: 1994-01-28
Abstract: The invention relates to a powder bleaching compositions for bleaching hair or keratinous fiber and methods for the production and use of the composition.  The powder bleaching composition comprising a conditioner of about 2 % to about 15 % by weight of said composition, a bleach accelerator of about 40 % to about 60 % by weight of said composition,  a thickener of about 1 % to about 10 % by weight of said composition, a silica component of about 2 % to about 11 % by weight of said composition, and a hydrogen peroxide source of about 15 % to about 23 % by weight of said composition, with a sufficient amount of water to provide a water-activated composition. The above composition prevents damage to the hair during bleaching and provides limited ammonia odor during use.
Patent CA-2154615-A1 (CA)
Inventor: FUJINA KYOSUKE
IPC: H01J61/52
Filed: 1995-07-25
Abstract: A discharge lamp has a water-cooled anode that achieves advantageous cooling. A tungsten tip piece is directly connected to a tip of a body element of the anode that is formed of copper and has a water-cooling arrangement therein. A maximum outer diameter of the tungsten tip piece is approximately equal to an outer diameter D of the body element, and the relationship between the outer diameter D and the thickness L of the tungsten tip piece is 0.2  L/D  0.5. In accordance with a preferred embodiment, the tungsten tip piece is directly connected to a tip of a cylindrical body element inside of which a cooling-water feed tube is arranged to extend coaxially with the body element. Cooling water is fedfrom a base of this cooling-water feed tube, along the cooling-water feed tube, strikes an inner side of the tip end of the body element, finally is conveyed through a gap between an inner side of the body element and an outer side of the cooling-water feed tube, which serves as a cooling-water drainage duct. Preferably, the tungsten tip piece has the shape of a truncated cone having a maximum outer diameter approximately equal to the outer diameter D of the body element, and a thickness extending in a lengthwise direction of the body element.
Patent CA-2155237-A1 (CA)
Inventor: SCHOENHOFER WALTER
IPC: A01C5/06
Filed: 1995-08-02
Abstract: A   ground   closer   kit   for   attachment   to   a seeding/fertilizing apparatus includes a support frame having a first end, a second end, and a bottom edge.  The first end is adapted for pivotally mounting the support frame to a ground opener.  A ground closer plate is secured to the bottom edge of the support frame at the second end.  A rod is pivotally mounted to the second end of the support frame.  A receptacle is provided for attachment to a seed/fertilizer delivery tube. The rod is  securable within the receptacle at one  of  a plurality of attachment positions along the length of the rod.
Patent CA-2156624-A1 (CA)
Title: Imidazoloquinoxalinones for the treatment of central nervous disorders
Inventor: TREIBER HANS-JOERG
IPC: A61K31/495
Filed: 1994-03-19
Abstract: Imidazolo-quinoxalinoes are used for preparing medicaments for treating diseases of the central nervous sysem. The imidazolo-quinoxalinoes have the formula (1), in which R1, R2 and X have the meanings given in the description.
Patent CA-2159261-A1 (CA)
Title: Method of preparing n-formyl-l-aspartic anhydride
Inventor: KATAOKA TAKEHIKO
IPC: C07K5/075
Filed: 1995-09-27
Abstract: The invention is concerned with a method of preparing N-formyl-L-aspartic anhydride, comprising the steps  of  (a)  reacting  L-aspartic  acid  with  acetic anhydride and formic acid in a molar amount at least 1.05 times that of aspartic acid, to form a suspension containing  N-formyl-L-aspartic  anhydride;   and   (b) centrifuging  the  suspension  of  N-formyl-L-aspartic anhydride obtained in step (a) to obtain a cake of N-formyl-L-aspartic anhydride,  while  (i)  supplying the suspension to a separation device under a back pressure of at least 100 mmHg,  (ii) releasing the back pressure when at least half of the suspension has been supplied, and (iii)  filtrating and/or dehydrating the cake. The method according to the invention enables N-formyl-L-aspartic acid to be produced on an industrial scale, with  less  residual  formic  acid  than  conventional methods.
Patent CA-2160301-A1 (CA)
Title: Pixel interpolation filters for video decompression processor
Inventor: HOOGENBOOM CHRIS
IPC: H04N7/50
Filed: 1995-10-11
Abstract: A method and apparatus are disclosed for interpolating pixels to obtain subpels for use by a video decompression processor. A prediction area is defined from which subpels are necessary to decompress a portion of a video image. Instead of reading all of the pixels from the prediction area and then processing them together to perform the necessary interpolation, portions of the pixel data are read and simultaneously averaged using in-place computation in order to reduce hardware requirements. Rounding of subpixel results is achieved using the carry input of conventional adders to add a binary "1" to the averaged pixels, which are subsequently truncated to provide the interpolated subpels.
Patent CA-2167259-A1 (CA)
Title: Collapsible pallet bin
Inventor: PARASIN ALEXANDER V
IPC: B65D6/24
Filed: 1996-01-15
Abstract: A container comprising a base, a pair of side walls, and first and second end walls. The pair of side walls are releasably connectable to the base by slidable movement from a first position to an intermediate position and then to a final position. The side walls are releasably connectable to the first and second end walls. The first end wall is releasably connectable to the base after the first end wall has been connected to the side walls when the side walls are in their intermediate position by slidable movement of the pair of side walls and the first end wall as a unit over the base to the final position of the side walls. After connection of the first end wall and side walls to the base, the second end wall is releasably connected to the side walls to complete the container. Interlocking three of the four walls to the base provides a container that is very strong and damage resistant. The container is also quick and simple to assemble and requires no tools.
Patent CA-2167446-A1 (CA)
Title: Fuel supply system
Inventor: BARFIELD MALCOLM RAYMOND
IPC: F16L58/04
Filed: 1996-01-17
Abstract: A  supply  system  for  fluid  fuel,  particularly petrol,  comprises  composite  pipes  comprising  an  inner polymeric layer (1), an intermediate layer (2) of aluminium foil and a thin outer polymeric layer  (3).   The inner polymeric layer (1) provides the mechanical strength of the pipe, the foil layer (2) forms an impermeable barrier to prevent or reduce petrol permeation and to prevent ingress of external contaminants into the system, whilst the thin outer polymeric layer (3) protects the aluminium foil (2) from attack by agressive soils and chemicals external to the supply system.
Patent CA-2168359-A1 (CA)
Title: Method and Apparatus for RMS Current Approximation
Inventor: PHILLIPS TIMOTHY BRIAN
IPC: H02H3/093
Filed: 1994-08-03
Abstract: A method and apparatus provides for a measurement technique which approximates the true rms value of a current waveform. The technique involves converting the current waveform to a voltage by rectification and determining the peak value and the average value of the resultant voltage. A summing circuit (42) combines the two values at a predetermined ratio to create a DC voltage that is approximately equal to the rms value of the input currents. The DC voltage output is suitable for a wide range of applications. A combination of the approximation circuit (32) with a time integrating circuit (44) and a level detecting circuit (46) produces a low cost solid state overload relay in a preferred embodiment of the invention. Other uses include metering and use as a current feedback control signal for controlling PWM inverters and the like.
Patent CA-2169281-A1 (CA)
Title: Device for actuating a control member
Inventor: BOLTE EKKEHARD
IPC: H01F7/121
Filed: 1995-06-02
Abstract: The invention relates to a device for actuating a control member, particularly a throttle valve in a gas conduit (3), such as for example an intake of an internal-combustion engine, which valve is pivotable from an idling position into operating positions by means of a valve shaft (5), the valve shaft (5) carrying an actuator body formed by a magnetised rotor body (9) which, via an air gap (10), cooperates with pole shoes (15) of a stationary excitation section (11), which is electrically c energisable by a pick-up, which pole shoes surround said rotor body externally, the excitation section (11) comprising a Ushaped stator whose limbs (12a, 12b) form the pole shoes (15), which cooperate with the permanent-magnet rotor body (9) at the air gap, in such a manner that the rotor body (9) is subjected to magnetic torques which tend to pull said rotor body into a well-defined rest position, in order to thereby return the throttle valve (4) in a direction opposite to the opening direction into a well-defined rest position in the non-energised condition.
Patent CA-2169350-A1 (CA)
Inventor: SHINDO KIYOTAKA
IPC: G01N27/407
Filed: 1995-06-13
Abstract: La présente invention concerne une couche vitreuse rendue électro-conductrice grâce à des ions lithium du Li¿2?O en teneur molaire de 20 à 80 %. Cette couche dont la structure est assez dense pour arrêter un gaz, peut servir d'électrolyte solide d'un détecteur de CO¿2?. Le détecteur de gaz CO¿2? à couche fine de la présente invention intègre un électrolyte solide constitué d'une couche vitreuse électro-conductrice par inclusion d'ions lithium. Ce détecteur réussit, d'une part, à éliminer totalement le bruit résultant de l'infiltration du gaz qui le traverse, étant donné la structure dense de la couche vitreuse rendue électro-conductrice par inclusion d'ions lithium, et, d'autre part, à améliorer la précision de la valeur mesurée d'une concentration en gaz CO¿2?. Le verre rendu électro-conducteur par inclusion d'ions lithium ayant une structure en couche, le détecteur présente une résistance interne basse, ce qui permet d'utiliser le détecteur à basse température de service pour une vitesse de réponse élevée. Le réchauffeur employé dans ce type de détecteur peut donc être plus petit que les réchauffeurs montés dans les types de détecteurs habituellement utilisés, lesquels détecteurs peuvent désormais être compacts, même lorsqu'ils intègrent un réchauffeur. Selon l'invention, le détecteur à couche fine pour gaz CO¿2? de la présente invention utilise comme substrat ou comme couche une matière céramique perméable aux ions oxygène, mais capable d'arrêter les ions autres que les ions oxygène. Pour mesurer de la concentration en gaz CO¿2?, il suffit donc d'introduire l'ensemble détecteur de gaz CO¿2? dans le gaz objet à examiner.