baber/WOPTO huggingface dataset:
Patent CA-2080610-A1 (CA)
Title: Apparatus for receiving and storing transmitted data in a confidential manner
Inventor: MCCANN MICHAEL S
IPC: G09C5/00
Filed: 1992-10-15
Abstract: ABSTRACT         A method and apparatus are disclosed for receiving and storing transmitted data in a confidential manner.  The data receiving station is characterized by a device for producing on a record medium such as paper, a graphic image which is representative of a transmitted image.  The data receiving station further includes a secure portion into which the record medium having the graphic image thereon may be transported, wherein viewing of the graphic image is substantially prevented.  Preferably a containment device is removably housed within the secure portion such that a record medium transported into the secure portion is further moved into the containment device without permitting the viewing of the graphic image.  Advantageously the containment device comprises two sheets of plastic material which are heat sealed about the record medium by heating and sealing elements housed within the secure portion, to form a plastic envelope.  In this manner, the plastic envelope having the record medium sealed therein may then be removed from the data receiving station and delivered to the intended recipient, without permitting others the opportunity for surreptitious or casual viewing of the graphic image.
Patent CA-2083545-A1 (CA)
Title: Polyunsaturated diazonium compounds
Inventor: WADE JOHN R
IPC: C09D175/16
Filed: 1993-01-20
Abstract: ABSTRACT     IMPROVEMENTS IN OR RELATING TO POLYUNSATURATED   DIAZONIUM COMPOUNDS     Polyunsaturated diazonium compounds suitable for use in negative working radiation sensitive compositions are provided.  They may be produced by reacting an aromatic diazonium compound of the formula (A-N2+)p - Ar - (R)q - (XH)r with a polyethlenically unsaturated monoisocyanate compound of the general formula   where p and q are integers ranging from 1 to 5, r is an integer ranging from 1 to 10; Ar represents a substituted or unsubstituted divalent or polyvalent radical derived from an aromatic or heteroaromatic compound; X represents O, S or a secondary or tertiary amino group; R represents a single bond or a substituted or unsubstituted divalent or other polyvalent radical and may be the same or different when q is greater than 1; A- represents an anion; Z represents the residue of a polyisocyanate OCN-Z-(NCO)n where n is 1 or 2; and Y is the residue of a monohydroxy compound of the formula YOH where Y contains at least two ethylenically unsaturated double bonds.
Patent CA-2086750-A1 (CA)
Title: Abrasive printed with an electrically conductive ink
Inventor: BUCHANAN SCOTT J
IPC: B24D3/34
Filed: 1991-07-22
Abstract: A coated abrasive article having a printed coating of electrically conductive ink incorporated in the construction thereof, such that the buildup of static electricity during the use of the article is either reduced or eliminated. In another aspect, a method to make the same is taught.
Patent CA-2090531-A1 (CA)
Title: Dual time constant audio compression system
Inventor: ARMSTRONG STEPHEN W
IPC: H03G7/08
Filed: 1993-02-26
Abstract: ABSTRACT OF THE DISCLOSURE                An audio compression system for a hearing aid. The audio compression system provides a variable gain amplifier for compensating for loudness recruitment. The audio compression system comprises an amplifier having a feedback circuit which includes a current controlled resistor. The gain of the amplifier is varied by using a gain controller to generate a variable current signal. The gain controller utilizies dual averaging detectors to determine the average energy in the amplifier output and generate a corresponding current signal. The averaging detectors are coupled to the output of the amplifier through a rectifier stage which rectifies the amplifer output. The averaging detectors include a slow averaging detector and a fast averaging detector. The slow averaging detector is normally in control, while the fast averaging signal is activated for loud signal levels. To compensate for non-linearity in the operation of the current controlled resistor, the audio compression system can include a pair of comparators which are coupled to the output of the amplifier. The comparators sense the amplifer output signal and provide a pair of symmetrical thresholds about the normal quiescent point of the amplifier output.
Patent CA-2092813-A1 (CA)
Title: Ancillary equipment for percutaneous diskectomy treatment of slipped disks
Inventor: PEYROU PIERRE-LOUIS
IPC: A61B17/00
Filed: 1991-09-30
Abstract: The present invention relates to an ancillary material for percutaneous dissectomy in the treatment of slipped discs comprising essentially a needle (1) tracing the operation path, at least one coaxial tube (2) sliding on said needle for widening the path, a guiding tube (4) which is adjusted by sliding on said coaxial tube set in place and of which one extremity is provided with a reinforcement (5) allowing a removable handle (7) to be fitted, a trephine (18) insertable by means of a guiding and driving member into said guiding tube so that, by rotation, a hole is drilled through the vertebral ligament and the slipped disc, and finally a rincing-suction probe cooperating with the guiding tube for sucking pathological disc materials and, conveniently, the instillation of antibiotics, characterized in that the guiding and driving member for the trephine is flexible, said trephine which is machined or set in at the extremity of the distal part of the flexible member is also provided with an internal helical ramp (22a) for extracting cut materials.
Patent CA-2094908-A1 (CA)
Inventor: HAYES BYRON K
IPC: A61B19/00
Filed: 1991-12-02
Abstract: Article implantable bioabsorbable permettant de séparer et de régénérer des tissus à un endroit où les tissus sont défectueux. Cet article comprend une matrice fibreuse fixée de manière lamelliforme sur une surface d'un matériau en feuille arrêtant les cellules. Lorsque l'article est implanté, il permet la croissance interne des tissus dans le côté à matrice fibreuse du matériau et il permet simultanément aux tissus devant être régénérés à l'endroit où les tissus sont défectueux d'être séparés des tissus se développant à l'intérieur, par le matériau en feuille arrêtant les cellules. Cette invention concerne également un procédé permettant de produire l'article implantable bioabsorbable.
Patent CA-2095442-A1 (CA)
Inventor: YARDLEY JAMES V
IPC: G05D1/02
Filed: 1991-11-25
Abstract: An automated guided vehicle (AGV) control system which is downward compatible with existing guidewire systems pro-viding both guidewire navigation and communication and autonomous navigation and guidance and wireless communication bet-tween a central controller and each vehicle. Autonomous vehicle navigation comprises travel over paths marked by update mark-ers which may be spaced well apart, such as fifty feet. Redundant measurement capability comprising inputs from linear travel encoders from the vehicle's drive wheels, position measurements from the update markers, and bearing measurements from a novel angular rate sensing apparatus, in combination with the use of a Kalman filter, allows correction for navigation and guid-ance errors caused by such factors as angular rate sensor drift, wear, temperature changes, aging, and early miscalibration during vehicle operation. The control system comprises high frequency two-way data transmission and reception capability over the guidewires and via wireless communications. The same data rates and message formats are used in both communications sys-tems.
Patent CA-2096050-A1 (CA)
Title: Method of recovering zinc
Inventor: WARNER NOEL A
IPC: C22B5/02
Filed: 1993-05-12
Abstract: ABSTRACT          Zinc is recovered from zinc sulphide material by introducing such material at a feed station into a molten copper sulphide matte which is circulated in a closed loop path through said feed station, a zinc recovery station and an oxidising station.  The matte is heated electrically directly by resistive heating.  Oxygen in the absence of other gases is introduced at the oxidising station.  Sulphur dioxide is removed in a sulphuric acid plant.  The method is operated to keep the activity of copper in the total matte at less than unit activity. Virtually zero gas emission is possible.
Patent CA-2096746-A1 (CA)
Title: Tissue bondable cystostomy tube and method of cystostomy tube implantation
Inventor: GRIFFITH DONALD P
IPC: A61F2/82
Filed: 1991-11-20
Abstract: A tissue bondable cystostomy tube comprising: a) a subcutaneous hollow cylinder (11) coated on its exterior surface with a material suitable for bonding with biological tissue, said subcutaneous hollow cylinder (11) having an upper end and a lower end; b) a planar disc-like base (13) integrally formed with said subcutaneous hollow cylinder (11) and coated on its exterior surface with a material suitable for bonding with biological tissue, said disc-like base (13) extending radially outward from the lower end of said subcutaneous hollow cylinder (11); and c) a transcutaneous hollow cylinder (20) coated on its exterior surface with a ma-terial suitable for bonding with biological tissue, said transcutaneous hollow cylinder (20) having a lower end and an upper end, the lower end of said transcutaneous hollow cylinder (20) slidably received into the upper end of said subcutaneous hollow cylin-der (11); d) a stabilizing slipover disc sleeve (15) centrally located on the exterior surface of said subcutaneous hollow cylinder (11); and e) a removable cap (21) affixed to the upper end of said transcutaneous hollow cylinder (20).
Patent CA-2098114-A1 (CA)
Title: A process for the preparation of diltiazem
Inventor: MANGHISI ELSO
IPC: A61K31/554
Filed: 1991-12-09
Abstract: (+)-Cis-3-(acetoxy)-5-[2-(dimethylamino)-ethyl]-2,3-dihydro-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one hydroch-loride is prepared by N-alkylation of (+)-cis-3-hydroxy-2,3-dihydro-2-(4-methoxyphenyl)-1,5-benzothiazepin-4(5H)-one with di-methylaminoethyl chloride and- K2CO3 in toluene/water, addition of a solubilizing agent and in the presence of a phase-transfer catalyst, the toluene phase being directly subjected to the final O-acetylation.
Patent CA-2100674-A1 (CA)
Title: Chilling resistant plants and their production
Inventor: NISHIZAWA OSAMU
IPC: C12N15/82
Filed: 1992-01-14
Abstract: The present invention relates to the genetic engineering of higher plants to confer chilling resistance.      Provided is a higher plant which contains more unsaturated fatty acids in membrane lipids than are inherent to that plant species, and a process for producing the same. A preferred embodiment of the plant is a transgenic plant expressing a polypeptide with a glycerol 3-phosphate acyltransferase activity that has a higher substrate selectivity for oleoyl-(aryl-carrier-protein) (oleoyl-ACP) than for palmitoyl-(aryl-carrier-protein) (palmitoyl-ACP).      In another aspect, there are provided higher plants with a lowered critical temperature for chilling injury, and a process to produce the same. A preferred embodiment of the plant is a transgenic plant whose phosphatidylglycerol contains reduced amounts of saturated molecular species due to the expression of a polypeptide with a glycerol 3-phosphate acyltransferase activity that has a higher substrate selectivity for oleoyl-ACP than for palmitoyl-ACP.
Patent CA-2100745-A1 (CA)
Title: Amylin agonist peptides and uses therefor
Inventor: GAETA LAURA S L
IPC: A61P5/50
Filed: 1992-11-19
Abstract: Agonist analogues of amylin and related pharmaceutical compositions, and methods of treatment of diabetes and other in-sulin-requiring states, as well as methods of treatment of hypoglycemia, are provided.
Patent CA-2101423-A1 (CA)
Title: Benzamides
Inventor: ASHTON MICHAEL J
IPC: A61K31/165
Filed: 1992-01-28
Abstract: Benzamide derivatives of formula (I), wherein R1 represents alkyl, R2 represents alkyl or mono-, bi- or tricycloalkyl, R3 represents an optionally substituted phenyl, naphthyl or heterocyclyl group, and Z represents oxygen or sulphur, and when said heterocyclyl groups contain one or more nitrogen ring atoms, N-oxides thereof, and pharmaceutically acceptable salts thereof, possess useful pharmacological properties.
Patent CA-2104513-A1 (CA)
Title: Extruded Frame Molding for Glass Block Structures
Inventor: BALLSTADT GEORGE
IPC: E04B1/12
Filed: 1993-08-20
Abstract: An extruded molding configured to frame glass masonry block for building structures, particularly wood frame structures, the molding having a substantially flat base portion on which the block is seated and raised side elements forming a channel, the molding having a topside of the base portion with a pair of bracket elements constructed to engage and retain the tab segment of a panel anchor and having an underside of the base portion with a weather flash and a nailing flange to prevent water seepage under the molding.
Patent CA-2106851-A1 (CA)
Title: Device for cyclically rearranging a stack of sheets
Inventor: MAAG ARTHUR
IPC: G03B23/02
Filed: 1993-01-15
Abstract: A device for cyclically rearranging a stack of rectangular sheets may fail due to uncontrolled displacement of an individual sheet to be exchanged. To avoid such malfunction, the device includes springs (200a, 200b) which maintain alignment of that individual sheet with thrust-supporting stops (66). The stops may be designed to sense the thrust to which the individual sheet is subjected so as to permit or to prohibit exchange.
Patent CA-2111594-A1 (CA)
Title: Dispenser
Inventor: CAMM JAMES O
IPC: B65D81/32
Filed: 1992-06-16
Abstract: A dispenser is disclosed which has a first container (12) for containing a component C and a cavity (30) for receiving a separate cartridge (60). A first piston (34) is received in the container (12) and a second piston (78) is received in the cartridge (60).  A blade (48) extends between the piston (34) and piston (78) for slicing the separate cartridge (60) as the pistons move so that the component C and a second component C1 in the separate cartridge (60) are expelled from the dispenser. A valve arrangement (100) can be coupled to an outlet (18) for the dispenser in order to dispense the components C and C1 and a flexible sleeve (50) may be arranged in the container (12) between a sidewall of the container (12) and the piston (34) for sealing any space between the piston (34) and the sidewall of the container (12).
Patent CA-2113976-A1 (CA)
Inventor: PEACHEY BRUCE R
IPC: E21B43/38
Filed: 1994-01-21
Abstract: A method for reducing the amount of formation water in oil recovered from an oil well.  Firstly,  place a cyclone separator downhole in a producing oil well.   The cyclone separator includes a separation chamber wherein liquids of differing densities  are  separated,  a mixed liquids  inlet through which liquids pass into the separation chamber, a first outlet  for  liquids  of  a first density to pass  from the separation chamber, and a second outlet for liquids of a second density to pass from the separation chamber.  Secondly, connect the first outlet to a recovery conduit extending to surface whereby a stream of mainly oil is separated in the separation chamber from the oil/water stream flowing through the mixed liquids inlet.  The stream of mainly oil flowing out the first outlet and along the recovery conduit to surface.  Thirdly, connect the second outlet to a disposal conduit extending to a selected disposal site whereby a stream of mainly water is separated in the separation chamber from the oil/water stream passing through the mixed liquids inlet.  The stream of mainly water flowing out the second outlet and along the disposal conduit to a selected disposal site.
Patent CA-2114071-A1 (CA)
Title: Revetements de protection des materiaux contre les reactions avec l'atmosphere a haute temperature
Inventor: MOREL BERTRAND
IPC: C04B41/87
Filed: 1994-01-24
Abstract: 11 REVETEMENTS DE PROTECTION DES MATERIAUX CONTRE LES REACTIONS AVEC L'ATMOSPHERE A HAUTE TEMPERATURE Cette invention concerne un revêtement de protection des matériaux contre les réactions avec l'atmosphére à haute température. Le revêtement selon l'invention est constitué d'un mélange de diborure de zirconium et de silice colloïdale auquel il peut être intéressant d'ajouter divers additifs comme le carbure de silicium. Le revêtement selon l'invention permet par exemple de protéger efficacement le carbone et le graphite jusqu'à 1350.degree..
Patent CA-2114301-A1 (CA)
Inventor: HIGASHIMURA MINORU
IPC: A01N25/32
Filed: 1994-01-26
Abstract: A herbicidal composition having a reduced phytotoxicity which comprises at least one compound selected from 3-substituted phenylpyrazole derivatives represented by the general formula (I):       (wherein R is a substituent such as an alkoxy group, each of R1 and R2 is a substituent such as a lower alkyl group, Y is an oxygen atom or the like, and each of X1 and X2 is a halogen atom) and at least one specific anionic surfactant.
Patent CA-2117772-A1 (CA)
Title: Implantable cardioverter defibrillator having a smaller displacement volume
Inventor: KROLL MARK W
IPC: H01M6/50
Filed: 1993-04-07
Abstract: A capacitor-discharge implantable cardioverter defibrillator (ICD) has a relatively smaller displacement volume of less than about 90cc. The smaller volume of the ICD is achieved by selecting and arranging the internal components of the ICD to deliver a maximum defibrillation countershock optimized in terms of a minimum physiologically effective current (I pe), rather than a minimum defibrillation threshold energy (DFT). As a result of the optimization in terms of a minimum effective cur-rent I pe, there is a significant decrease in the maximum electrical charge energy (E c) that must be stored by the capacitor of the ICD to less than about 30 Joules, even though a higher safety margin is provided for by the device. Due to this decrease in the maximum E c, as well as corollary decreases in the effective capacitance value required for the capacitor and the net energy storage required of the battery, the overall displacement volume of the ICD is reduced to the point where subcutane-ous implantation of the device in the pectoral region of human patients is practical. The size of the capacitor is reduced be-cause the effective capacitance required can be less than about 125 µF. By optimizing both the charging time and the counter-shock duration for the smaller maximum E c, the size of the battery is reduced because the total energy storage capacity can be less than about 1.0 Amp-hours. In the preferred embodiment, the charging time for each defibrillation countershock is re-duced to less than about 10 seconds and the pulse duration of the countershock is reduced to less than about 6 milliseconds.
Patent CA-2120977-A1 (CA)
Title: Impeller with alternating primary and secondary vanes of different geometries
Inventor: ABULNAGA BAHA E
IPC: F04D17/00
Filed: 1994-04-11
Abstract: The present invention relates to the design of impellers for radial, centrifugal or mixed flow liquid and gas pumps and turbines.  The  impeller  features  a number  of primary and secondary vanes (or blades). The primary vanes extend from the eye of the impeller to the tip diameter or periphery of the impeller. The secondary vanes extend from a higher radius outside the  eye of  the  impeller to  the tip  diameter or periphery of the impeller. The primary and secondary vanes alternate. The role of the secondary vanes is to control the expansion and the slip between the primary vanes particularly towards the periphery of the impeller.
Patent CA-2121152-A1 (CA)
Inventor: RAVETTI ROBERT G
IPC: G01N21/75
Filed: 1994-04-13
Abstract: A chemically sensitive sensor (10) capable of detecting changes in concentrations of ions, atoms, or molecules in a fluid environment (38) in which the sensor is immersed or embedded comprises a thin clad optical fiber (26), which is coated with a polymer (34) which is permeable to liquids and which contains a chemically sensitive material, and a light carrying fiber (20).  The polymeric material has the ability to change color and/or absorbance when the concentration of the ion, atom, or molecule in the surrounding environment changes.  The polymer will return to its original color and/or absorbance state once the concentration goes back to the original value.  The color change or absorbance is detected through the core (30) of the optical fiber which is connected to a photodetector (28).  The coupling of the light (22) into the sensing structure is obtained by using a core-only optical fiber (20), surrounded by a clad material (36), in addition to an external light source (24).  Coupling of the external light beam with the polymeric coated fiber is obtained through microbending losses in reverse by spooling the coated fiber around the clad material.   Changes such as pH, metal or other ion concentration,  organic molecule  concentration,  and gas molecule concentration may be detected.
Patent CA-2122202-A1 (CA)
Title: Fema gene of staphylococcus epidermidis, fema protein, and vectors and microorganisms comprising the fema gene
Inventor: ALBORN WILLIAM E JR
IPC: C12R1/44
Filed: 1994-04-26
Abstract: Abstract The instant invention provides the femA gene of Staphylococcus epidermidis and all degenerate sequences thereof, the protein encoded by the femA gene (FemA), and vectors and microorganisms comprising genes encoding the FemA protein.
Patent CA-2122324-A1 (CA)
Title: Section bar having an elastically deformable branch for covering the edge of a panel or of a first section bar, a frame element and a door implementing said section bars
Inventor: COUPET JEAN-MARIE
IPC: E06B3/46
Filed: 1994-04-27
Abstract: The covering section bar has a generally U-shaped inner housing defined by two side branches and a cross-bar; the first side branch having a fastening or snap-fastening shoulder and being elastically deformable at a first level of deformation, being of a thickness that is less than the mean thickness of the section bar, at least in the zone thereof where elastic deformation is required the inner housing includes a first bearing zone corresponding to the fastening shoulder or situated close to the snap-fastening, shoulder, a second bearing zone situated on the same side of the inner housing, and a third bearing zone situated on the second side branch and located in between the two first-mentioned bearing zones.      The section bar covers either a panel or a panel-fastening section bar, after one or other of them has been inserted in its inner housing. The combination of the covering section bar and of the fastening section bar constitutes a panel frame element.
Patent CA-2124687-A1 (CA)
Title: Electrical isolation in integrated circuits
Inventor: WANLASS FRANK M
IPC: H01L27/092
Filed: 1993-09-14
Abstract: A back biasing technique is provided for increasing the field inversion voltage between adjacent MOS transistors and for reducing parasitic capacitances in an integrated circuit. The use of a charge pump is avoided by connecting the body portion (11) of the MOS transistors to ground and the sources (22) of the MOS  transistors to the anode (27) of a diode, the cathode (26) of which are connected to a reference voltage such as to ground. In this manner, the sources are back biased relative to the material in which they are formed by a diode forward voltage drop. This technique is particularly applicable to CMOS circuits operating form a 3.3 volt supply, with p-well (15) doping densities in excess of 1x1017 atoms/cm3.