baber/WOPTO huggingface dataset:
Patent CA-2190589-A1 (CA)
Inventor: SUTTON STEVEN MICHAEL
IPC: A61M5/50
Filed: 1995-05-16
Abstract: La présente invention a pour objet des seringues (2) qui sont rendues inutilisables après usage, par rétraction de l'aiguille. L'invention permet d'obtenir au moyen d'une dépression ou d'un ressort (72) une force de précontrainte produite par le mouvement du piston (8) qui s'écarte de clapets antiretour (36). La dépression produite en association avec l'affaissement du corps de seringue (10) force le piston (8) à parcourir la totalité de sa course, indépendamment des opérations de l'utilisateur. Lorsque la course du piston est achevée, des organes coupants (64, 66) détachent l'aiguille (60) du corps de seringue (10) et emprisonne l'aiguille (60) à l'intérieur du corps (10) de la seringue (2), rendant ainsi inoffensive la seringue usagée. A la différence des seringues de la technique antérieure qui nécessitent une opération délibérée de la part de l'utilisateur pour les rendre inutilisables, l'invention présente l'avantage de rendre involontairement la seringue (2) inutilisable.
Patent CA-2194646-A1 (CA)
Inventor: WATT ROBERT
IPC: A43B7/28
Filed: 1997-01-08
Abstract: Method for producing innerboots for sports shoes made of thermoformable material; the method provides for the formation of the outer surface of the innerboot so as to reproduce the internal shape of the shoe and for the subsequent formation of the inner surface of the innerboot so as to reproduce the anatomical shape of the foot.  The process thus provides an innerboot, particularly for sports shoes made of thermoformable material, whose outer shape is complementary to the inner shape of the sports shoe and whose inner shape is complementary to the anatomical shape of the user's foot so as to increase comfort for the skier.
Patent CA-2195415-A1 (CA)
Title: A video security system
Inventor: RHODES SCOTT ANTHONY
IPC: G08B13/196
Filed: 1995-07-26
Abstract: A video security system (10) capable of monitoring and recording fixed and moving targets and recording management information into a video signal such that the text can be removed from the video image produced by the video signal at playback of the recorded video signal. The VSS (10) allows a camera (70b) to switch (toggle) between two or more view positions of interest and to set the view positions into memory by pressing a single switch. The cameras (70b) are controlled to move rapidly, but accurately, between the positions within controlled parameters of speed and acceleration - including a period of substantially zero acceleration between changes in the rate of acceleration.
Patent CA-2195459-A1 (CA)
Title: Disciplined time scale generator for primary reference clocks
Inventor: ZAMPETTI GEORGE PHILIP
IPC: G04G7/02
Filed: 1995-07-20
Abstract: Methods and apparatus are disclosed for providing disciplined clock signals at a plurality of nodes located throughout a network. In the preferred embodiments, a plurality of clocks are ensembled to provide ensemble time base information. A universal clock signal such as from a global positioning satellite (GPS) or Loran receiver is also provided and the ensembled time information is disciplined to the frequency or the phase of the universal clock signal to provide syntonisation or synchronization throughout the network.
Patent CA-2195668-A1 (CA)
Inventor: CAMPBELL ANN E
IPC: C12N15/38
Filed: 1995-07-28
Abstract: Infection of human fibroblast cells with human cytomegalovirus (HCMV) causes down-regulation of cell surface expression of MHC  class I. The present invention is directed to a mutant with a 9-kb deletion in the S component of the HCMV genome (including open reading frames IRS1-US9 and US11) which fails to down-regulate class I heavy chains. By examining the phenotypes of mutants with smaller deletions with this portion of the HCMV genome, a 7-kb region containing at least 9 open reading frames was shown to contain the genes required for reduction in heavy chain expression. Furthermore, it was determined that two subregions (A and B) of the 7-kb region each contained genes which were sufficient to cause heavy chain down-regulation. In subregion B, the US11 gene product is involved.  It encodes an endoglycosidase H-sensitive glycoprotein which is intracytoplasmic, similar to the adenovirus type 2 E3-19K glycoprotein which inhibits surface expression of class I heavy chains.
Patent CA-2195941-A1 (CA)
Title: Multi-nodal digital telephone distribution system
Inventor: TAVAKKOLIAN FARIBORZ
IPC: H04Q3/58
Filed: 1995-07-21
Abstract: A Cabin Distribution System (CDS) provides the necessary interfaces between each of the telephone units used by the passengers on the airplane and a Cabin Telephony Unit (CTU). The CTU is an intelligent telephony switch that controls and routes telephone calls between the passengers and a plurality of communication networks. A primary rate interface such as a CEPT E1 interface is used to connect the plurality of telephone units to the CTU in a loop-based configuration. The E1 interface provides thirty-two communication channels. Preferably, a link access protocol over the D-Channel is utilized to control the communications on the E1 interface. Utilizing the LAP-D protocol, of the thirty-two channels available on the E1 interface, a first channel is used for framing the communication messages, and a sixteenth channel, referred to as the D-Channel, is utilized as the data communication channel. Advantageously, the remaining thirty channels, which are referred to as B-Channels, are available to connect telephone calls. Data information transferred on the DChannel is interrupted by each telephony group for a delay of sixteen frames to determine if the data is intended for the group. Voice information that is transmitted along the B-Channels is only interrupted for one frame by each group to determine if the data is intended for the group. By preventing the groups of telephones from interrupting the transmissions on the B-Channel for an extended length of time, unnecessary and unwanted delays in the voice communication are eliminated.
Patent CA-2198656-A1 (CA)
Title: Transformer
Inventor: LECHELER REINHARD
IPC: H01F27/32
Filed: 1997-02-27
Abstract: The invention relates to a transformer with at least one primary winding and at least one secondary winding, with a winding unit, on which the primary winding is arranged in a first chamber and on which the secondary winding is arranged in a second chamber, in which a core, particularly a ferrite core, can be introduced, and which has an uptake element for a cap.      The invention provides that the cap covers only a partial region of the primary winding and the secondary winding. The primary winding and secondary winding are adjacent to each other in this partial region. The cap is configured with a first separating wall arranged essentially perpendicular to the cap, and this wall is arranged between the first chamber and the second chamber in the assembled state.
Patent CA-2198738-A1 (CA)
Title: Cable hold down and bracing system
Inventor: SCHUYLER PETER W
IPC: E02D27/50
Filed: 1995-08-30
Abstract: A method and apparatus for tying building components together or to the ground utilizes a system of spring-tensioned cables (46) strung between the foundation (16) and the top corners of any shear diaphragm. The cables (46) are kept under tension regardless of the shrinkage of wooden components, providing evenly-distributed compression on the structure's framing members.
Patent CA-2201890-A1 (CA)
Title: Versatile mill
Inventor: FERLEZ KAREL
IPC: B02C23/00
Filed: 1995-10-05
Abstract: The invention concerns a versatile mill, particularly the construction of its drive, central and clamping part with the fitting of knives, and the cooling of the milling part. The versatile mill is intended for processing food products and other organic and inorganic substances in the sense of milling, chopping, grinding, mixing or disintegrating the parts inserted into it in an enclosed processing system. A versatile mill in accordance with the invention has its driving motor (M) mounted in the same plane with the milling part (D) of the mill, an improved system of clamping knives (3) on a shaft (1), which is profiled, while the positioning of the knives (3) itself is carried out by means of intermediate discs (2); on the lower part under the bottom (11) of the milling part (D) a plate (7) is fitted which is rigidly linked with the shaft (1) and rotates together with it; in an air inlet (8) on the shaft (1) a fan (9) is fixed, while the bottom (11) of the mill and the stationary lateral parts of the milling compartment are carried out with double walls, whereby on the upper part of the milling compartment there is a collector which directs, along one path, the air inside the enclosed system, or - when the return channels are removed - the air in the open system into the centre of the mill.  Along another path, it directs the atmospheric air at the end of the cooling system - in the case of an enclosed system - to the return channels with the purpose of cooling them; two lateral output parts (A), (B) have their outer walls in the shape of two cones facing each other and ending at each side and on one end into output openings.
Patent CA-2202982-A1 (CA)
Inventor: SOLOMON TERRY HOWARD
IPC: F03G6/00
Filed: 1995-10-20
Abstract: L'invention concerne un moteur thermo-volumétrique (10) comprenant un trajet continu de fluide sous forme d'un trajet de réfrigérant (12), ainsi qu'un collecteur solaire (14). Le trajet continu de réfrigérant (12) comprend un premier échangeur de chaleur (16), un convertisseur de flux (18), une pompe (19) et un condenseur (20). Le convertisseur de flux (18) peut comprendre une turbine ou un tube souple et un rotor. Le premier échangeur de chaleur (16) comprend un ensemble multitubulaire à calandre, la calandre contenant une première substance à changement de phase présentant une chaleur de fusion latente relativement élevée. Lors de l'utilisation, la chaleur provenant du rayonnement solaire absorbée sur le collecteur solaire (14) entraîne la fusion d'une partie de la première substance à changement de phase. Le réfrigérant dans l'échangeur de chaleur (16) refroidit la première substance à changement de phase, entraînant ainsi sa solidification. Le réfrigérant absorbe alors la chaleur latente de la première substance à changement de phase. Le réfrigérant subit ainsi une expansion et s'écoule de l'échangeur de chaleur (16) vers le convertisseur de flux (18) en passant par la vanne d'étranglement (21), fournissant ainsi une force motrice.
Patent CA-2203747-A1 (CA)
Inventor: MCCOURT ROBERT W
IPC: G01R29/08
Filed: 1997-04-25
Abstract: There is disclosed a methodology for measuring the magnetic field strengths of fundamental and harmonic frequencies associated with a.c. electrical current flows over a protracted period of time; and, particularly , in hostile environments. A preferable application calls for the determination of the field strengths associated with electrical currents flowing in a.c. power, distribution lines of utilities. The monitoring instrument is positioned in relation to the power lines to be monitored, typically at the base of a pole immediately adjacent the pole of the power line or on a power line supporting pole itself. In order to provide for long term, powering of the monitoring device, d.c. power is developed utilizing the a.c. power that is present. The conversion from a.c. to d.c. is effected at a distance sufficiently far from the monitoring instrument so as not to have any consequence on the readings that are being taken. Readings during the protracted period are typically stored and then accessable at pre-determined periods. A procedure for checking operability of the instrument is disclosed. The methodology further includes a technique for determining the lateral profile of magnetic field strengths for transverse distances from the location site of the monitoring instrument. The methodology disclosed has broad application including workplace monitoring.
Patent CA-2204130-A1 (CA)
Inventor: KO SOO YOUNG
IPC: C07D411/12
Filed: 1995-12-12
Abstract: Composés de la formule (I) et leur sel d'addition d'acide; dans cette formule, R¿1? représente phényle mono ou disubstitué, n vaut zéro ou 1, X¿1? représente oxygène, soufre ou =NCN, X¿2? et X¿3? représentent oxygène ou soufre, R¿2? représente hydrogène ou méthyle, R¿3? représente phényle, phényle substitué par halo, 2-naphtyle, IH-indol-3-yle ou 1-méthyl-indol-3-yle, Z représente -N(CH¿3?)- ou -CH¿2?-, R¿4? représente phényle, 3,5-bis(trifluorométhyl)phényle ou pyridyle et R¿5? représente hydrogène, phényle 3,5-bis(trifluorométhyl)phényle ou pyridyle, étant entendu que lorsque X¿3? représente soufre, Z représente -N(CH¿3?)-. Ces composés possèdent une activité antagoniste par rapport à la tachykinine et ils sont utiles en tant que médicaments, par exemple dans le traitement de la douleur.
Patent CA-2209245-A1 (CA)
Title: Paperboard pallet system
Inventor: O'CONNOR JEREMIAH C
IPC: B65D19/00
Filed: 1996-11-01
Abstract: Disclosed is a superior strength pallet system (10, 11, 12, 13), having particular advantages over corrugated pallets of prior art, yet providing the same advantages of lighter weight and less cost than that of wooden pallets.  Due to the design flexibility in accommodating as many interior components (11, 12, 13, 14) as is necessary to support a stable load, the strength of this pallet is virtually unlimited within its peer grouping of corrugated pallets.
Patent CA-2211423-A1 (CA)
Inventor: CLINE CHARLES W
IPC: C09J103/06
Filed: 1997-08-08
Abstract: An aqueous water resistant, viscosity stable adhesive composition for use in paper bonding applications comprising a hydrophobically modified fluidity corn starch having a water fluidity of about 60 to 80 and a solids content of about 8 to 40%.
Patent CA-2213408-A1 (CA)
Inventor: FISCHER DAN E
IPC: A61K9/68
Filed: 1996-01-11
Abstract: L'invention concerne une composition dentaire hémostatique destinée à empêcher les saignements des gencives ou à réduire les fluides provenant des gencives. Cette composition contient un agent hémostatique, un agent chimique pour diminuer l'activité acide de l'agent hémostatique et une base aqueuse. La composition peut être utilisée pour arrêter les saignements ou pour réduire les fluides provenant des gencives sans ouvrir les tubules dentinaires dans la dentine d'une dent qui a été coupée lors d'une opération de réparation et de reconstitution. L'agent chimique est, de préférence, une charge minérale ou un polyol à haut poids moléculaire qui diminue l'activité chimique ou acide ou autre de l'agent hémostatique. Ceci permet aux obturations des tubules dentinaires résultant de couches d'étalement de rester sensiblement intactes et d'empêcher le passage de contaminants potentiellement nocifs dans les tubules et donc dans la pulpe dentaire.
Patent CA-2214584-A1 (CA)
Title: Speech signal encoding system capable of transmitting a speech signal at a low bit rate without carrying out a large volume of calculation
Inventor: TAGUCHI TETSU
IPC: G10L19/113
Filed: 1994-07-06
Abstract: In a speech signal encoding system comprising a maximum similarity series extracting unit (50) for producing a series of excitation pulses appearing at an equidistant time interval and an identical amplitude, the maximum similarity series extracting unit sums up, as a waveform, a series of autocorrelation coefficients to produce a series of summation result coefficients.  The autocorrelation coefficients correspond to polarized pulses which are equal to one another in pulse interval and pulse amplitude.  The polarized pulses form a plurality of pulse sequences which have phases different from one another.  The maximum similarity series extracting unit extracts a polarity of each of the polarized pulses by the use of a dynamic programming method using a degree of an accumulated similarity as an evaluation measure and selects, as the excitation pulse series, one of the pulse sequences which has a maximum waveform similarity between the summation result coefficient series and a series of cross correlation coefficients.
Patent CA-2217717-A1 (CA)
Title: Water softening apparatus with microprocessor control
Inventor: REHFELDT ROGER
IPC: B01J49/00
Filed: 1997-02-18
Abstract: A water softening apparatus (10) is provided including a water tank (12), a brin e tank (22), chlorination electrodes (38a, 38b) for providing chlorination to water flowing in the water tank (12), and a circuit fo r providing electrical energy to the chlorination electrodes (32). A microprocessor (26) controls the circuit (32), with the microprocessor ( 26) being software controlled to determine when regeneration should commence, when backwash should terminate, when brine/slow rinse should co mmence, when the chlorination electrodes should be energized, when the chlorination electrode energization should terminate, when b rine/slow rinse should terminate, when fast rinse should commence, and when fast rinse should terminate.
Patent CA-2219270-A1 (CA)
Title: Encryption for modulated backscatter systems
Inventor: VANNUCCI GIOVANNI
IPC: H04B5/02
Filed: 1997-10-23
Abstract: The present invention enables a Tag and Interrogator to exchange proprietary information using Modulated BackScatter (MBS) technology. This invention discloses a method for encrypting the RFID user's PIN and thereby making the interception and the subsequent illegal use of RFID accounts at least as difficult as a present day ATM cards. For example, the encryption method can be based upon the US Digital Encryption Standard (DES), either first or third level. The Tag's personal encryption key is only known by the financial database and the RFID Tag. This method can be applied to any type of financial, debt, identification, or credit card.
Patent CA-2219482-A1 (CA)
Inventor: TARNEY SHERI CATHERINE
IPC: F21V21/088
Filed: 1997-12-30
Abstract: "In a clip for hanging outdoor Christmas lights on an eavestrough, it is known to be of plastic substance that clips onto the eavestrough whereby either the electrical line hangs in the clip, or the socket fits into the orifice of the clip where the bulb is attached to the socket on the underside of the orifice of the clip. In this invention, the clip is made of wire that clips onto the eavestrough, fencing, or any horizontal structure not exceeding 3/4 inch thickness, whereby the socket fits into the orifice of the clip and the bulb attaches to the socket on the underside of the orifice of the clip."
Patent CA-2219692-A1 (CA)
Inventor: NOMURA SUMIHIRO
IPC: C07D471/12
Filed: 1997-10-30
Abstract: The present invention is directed to a process for preparing S type 2-substituted hydroxy-2-indolidinylbutyric ester compound [II]:   (see  formula) wherein R0 is a residue of nitrogen-containing fused heterocyclic carboxylic acid having absolute configuration of "R" (in which the nitrogen atom is protected), R1 and R2 are lower alkyl groups, and E is an ester residue. The compound of the present invention is useful as an intermediate for preparing camptothecin derivatives having antitumor activities, which comprises 2-ethylating 2-substituted hydroxy-2-indolidinylacetic ester compound [I]:     (see formula ) wherein R0, R1, R2 and E are as defined above.
Patent CA-2222681-A1 (CA)
Inventor: KIRKPATRICK WILLIAM R
IPC: G01K7/02
Filed: 1996-06-04
Abstract: Transmetteur (10) de température dans un système de commande de processus, comportant un capteur de température (16, 18) qui détecte la température et fournit un signal de sortie de capteur associé à la température détectée. Un convertisseur (28) analogique/numérique couplé à la sortie de capteur fournit une valeur de sortie numérisée associée au signal de sortie du capteur. Un microprocesseur (22) reçoit la valeur de sortie numérisée, compense ladite valeur et fournit une valeur de température. Un circuit de comparaison (12) compare la valeur de sortie du capteur à une première valeur de seuil V¿REF1? et transmet un signal d'inhibition au microprocesseur (22) si le capteur se trouve en dehors de la première valeur de seuil V¿REF1?.
Patent CA-2223045-A1 (CA)
Title: Restraining device for filter cloth
Inventor: KEMP GEOFFREY D
IPC: B01D29/09
Filed: 1996-05-10
Abstract: A vacuum or gas pressure clamp prevents movement of an elongate filter cloth used in a horizontal vacuum filter. The clamp includes a support frame and a planar supporting device having a perforated support surface for supporting the filter cloth. The vacuum clamp is mounted on the frame and is adapted for connection to a vacuum source so that vacuum can be applied to numerous holes in the support surface. An imperforate sealing sheet with a number of weights thereon extends over the support surface and in close proximity thereto. The filter cloth can be drawn between the supporting device and the sealing sheet.  A vacuum can be applied to the filter cloth in order to prevent its movement in the longitudinal direction. In the gas pressure clamp, an enclosure extends around the supporting device and the sealing sheet and a positive air pressure can be provided in this enclosure.
Patent CA-2223586-A1 (CA)
Inventor: BARRY JAMES J
IPC: A61L29/14
Filed: 1996-06-06
Abstract: This invention features a method for triggering release of a drug from a hydrogel polymer (55) to tissue at a desired location of the body using a catheter. A portion of the catheter (51) is coated on its outer surface with a polymer (55) having the capacity to incorporate a predetermined substantial amount of drug which is immobilized in the polymer until released by a triggering agent or condition that is different from physiological conditions. Upon contact with a triggering agent or condition, the polymer reacts, e.g., swells or contracts such that the drug is delivered to the desired body tissue. A balloon catheter (51) is shown in which the hydrogel (55) is carried on the exterior surface of the balloon (54).
Patent CA-2225230-A1 (CA)
Title: Iridium catalysed carbonylation process for the production of acetic acid
Inventor: WATT ROBERT JOHN
IPC: C07B61/00
Filed: 1997-12-18
Abstract: A process for the production of acetic acid comprises (1) continuously feeding methanol and/or a reactive derivative thereof and carbon monoxide to a carbonylation reactor containing, a liquid reaction composition comprising an iridium carbonylation catalyst, methyl iodide co-catalyst, a finite concentration of water, acetic acid, methyl acetate and, optionally at least one promoter, (2) carbonylating the methanol and/or reactive derivative thereof with the carbon monoxide in the liquid reaction composition to produce acetic acid; and (3) recovering acetic acid from the liquid reaction composition, there being continuously maintained (a) in the liquid reaction composition water at a concentration of no greater than 4.5% by weight, and (b) in the reactor a carbon monoxide partial pressure in the range from greater than 0 to 7.5 bar.
Patent CA-2226586-A1 (CA)
Title: Chicken culler
Inventor: HENDRIKX JIM
IPC: A22B3/08
Filed: 1998-03-16
Abstract: A device used to humanely kill small, sick or lame birds in a poultry barn. It is a specially designed pliers that breaks the neck of the birds by getting between the vertebras and pushing them apart. It is also ideal for picking up dead birds.
Patent CA-2232935-A1 (CA)
Title: A method for the treatment of bismuth-containing sulphide ores or concentrates of such ores
Inventor: SANDSTR M AKE
IPC: C22B30/06
Filed: 1996-10-31
Abstract: The present invention relates to a method of pretreating sulphide ores or sulphide ore concentrates having high bismuth contents that have a disturbing influence on further processing of the ores or concentrates, such as to enable the ores or concentrates to be further processed for the recovery of their valuable metal contents or at least to facilitate such processing. The invention is characterized by leaching the ore or the concentrate with sulfuric acid over a predetermined time period while supplying heat at a pH  below 2, and thereafter separating from the leachate a leaching residue in the form of a product which is leaner in bismuth and more enriched with regard to its valuable metal content than the input material.