baber/WOPTO huggingface dataset:
Patent CA-2045391-A1 (CA)
Title: Key stopper
Inventor: FREDERIC AMBROSE
IPC: E05B17/14
Filed: 1991-06-25
Abstract: ABSTRACT            In a supplementary door locking device for apartments or condominiums, it is known to prevent a locked door from being opened - from the outside - via the use of a stolen key or any key. The invention is attached to the inside of the door, against the door latch handle, restricting its movement as well as the movement of the internal bolt that the door latch handle is connected to - thus keeping the door locked. There are no tools needed to install this device; and when required, it can be quickly and easily put in place and removed by only the use of ones' hands.
Patent CA-2048450-A1 (CA)
Title: Antisense oligonucleotide antibiotics complementary to the macromolecular synthesis operon, methods of treating bacterial infections and methods for identification of bacteria
Inventor: LUPSKI JAMES R
IPC: C12Q1/68
Filed: 1991-08-06
Abstract: A method of interrupting the expression of a macromolecular synthesis operon in bacteria comprising the step of binding an antisense oligonucleotide to a single stranded DNA or to a mRNA transcribed from the macromolecular synthesis operon. The antisense oligonucleotide can be either sequence specific to a unique intergenic sequence or a sequence specific to a bacterial homologous sequence. By interrupting the expression of the macromolecular synthesis operon bacterial infections can be treated. Specfic antisense oligonucleotides are disclosed. The ability of the antisense oligonucleotide to bind the mRNA or single stranded DNA also allows the identification of the bacteria by using a unique intergenic antisense oligonucleotide to bind to the single stranded DNA or to the mRNA transcribed from the macromolecular synthesis operon. A method for competitively inhibiting the protein products of the MMS operon with oligonucleotides is also disclosed. Methods of identifying unique intergenic sequence is also disclosed.
Patent CA-2048643-A1 (CA)
Inventor: LARSEN LEIF H A
IPC: C04B/
Filed: 1990-02-22
Abstract: Acid resistant concrete articles, especially sulphur concrete pipes manufactured from a material formulated on the basis of a composition of portland cement concrete suitable for the manufacture of pipes by means of the dry casting method, the volume of portland cement, filler and water being replaced by a substantially equivalent volume of sulphur cement and filler, while the amount of other components remains substantially unchanged. The sulphur concrete pipes are manufactured by mixing the components of the material and adjusting the mixture to a temperature, where sulphur cement is liquid. At this temperature the mixture is cast while subjected to vigorous vibration, using a casting mould preheated to a temperature of up to 160·C. The cast pipes can be removed from the mould immediately after casting. After only 24 hours they have obtained sufficient strength to be delivered to a building site. Sulphur concrete pipes are most suitable in aggressive environments, since they are resistant to acid and salt attacks.
Patent CA-2049663-A1 (CA)
Title: Using thermally-stable diamond or cbn compacts as tips for rotary drills
Inventor: CERUTTI DAVID B
IPC: E21B10/56
Filed: 1991-08-22
Abstract: USING THERMALLY-STABLE DIAMOND OR CBN COMPACTS AS                 TIPS FOR ROTARY DRILLS     ABSTRACT OF THE DISCLOSURE The present invention is directed to rotary drill bits and blanks which retain polycrystalline diamond or CBN compacts, but which do not suffer from disadvantages attendant by prior drill designs. The inventive rotary drill bit has a slot within the head thereof which slot has brazed therein with a brazing alloy preferably having a liquidus greater than 700°C, an unsupported thermally-stable polycrystalline diamond or CBN compact. The drill bit is made in another aspect of the invention by forming a slot in the head of the rotary drill and then brazing an unsupported thermally-stable polycrystalline diamond or CBN compact therein with a brazing alloy preferably having a liquidus greater than 700°C. For present purposes, polycrystalline diamond and CBN compacts are termed "thermally stable" by being able to withstand a temperature of 1200°C in a vacuum without any significant structural degradation of the compact occurring.
Patent CA-2050471-A1 (CA)
Title: Prosthetic meniscus
Inventor: STONE KEVIN R
IPC: A61F2/42
Filed: 1990-03-01
Abstract: A prosthetic, resorbable meniscus arid method of its fabrication are disclosed. The prosthetic meniscus can be implanted in a human knee where it can act as a scaffold for regrowth of native meniscal tissues. The meniscus comprises a dry, porous, matrix of biocompatible and bioresorbable fibers, at least a portion of which may be crosslinked. The fibers include natural polymers or analogs or fixtures thereof. The matrix is adapted to have in vivo an outer surface contour substantially the same as that of a natural meniscus. The matrix has pore size in the approximate range of greater than 50 microns to less than about 500 microns. With this configuration, the matrix establishes an at least partially bioresorbable scaffold adapted for ingrowth of meniscal fibrochondrocytes.
Patent CA-2051681-A1 (CA)
Title: Apparatus and method for calibrating a sensor system
Inventor: LANGE ANTTI A I
IPC: G01D3/02
Filed: 1990-04-27
Abstract: A method and apparatus for calibrating a sensor system output that includes a logic unit (1) for receiving uncalibrated sensor signals from a centralized sensor system (3) and for reading/writing data from/to a data base unit (2) that contains updated information on all control (4) and performance aspects of the sensors.  Based upon these inputs, the logic unit (1) can provide real-time or near real-time optimum calibration (5) of the sensors by using the Fast Kalman Filtering (FKF) method when the stability conditions of standard Kalman Filtering are met by the sensor system.
Patent CA-2054483-A1 (CA)
Title: Interengageable plastic fuel flange and plastic filler tube
Inventor: AITTAMA ROBERT W
IPC: B60K15/04
Filed: 1991-10-29
Abstract: ABSTRACT OF THE DISCLOSURE          A plastic filler tube for a fuel tank which includes an arrangement approximate one end thereof which is engageable with a fuel flange of a fuel tank.  The filler tube can include an annular outer flange or a plurality of tabs which can engage a radially inwardly directed flange or set of tabs on the fuel flange.
Patent CA-2054663-A1 (CA)
Title: Reinforced protective tube for optical waveguide fibers
Inventor: KANNABIRAN RENGAN
IPC: C03C25/10
Filed: 1991-10-31
Abstract: ABSTRACT OF THE DISCLOSURE    Reinforced   protective   tubes   for   optical waveguide fibers are provided.  The tubes include an inner layer of a polyester elastomer, an outer layer of a polyvinyl chloride polymer, and two longitudinal reinforcing members composed of aramid fibers.   The tubes have low thermal expansion, an outside diameter of less than about 1,000 microns, and can be used to form  the  pigtails  of  optical  waveguide  couplers. Methods for producing the protective tubes in which the reinforcing members and the plastic layers are coated  onto  a  removable  core  member  are  also disclosed.
Patent CA-2057189-A1 (CA)
Inventor: WAI CHIU K
IPC: A61K49/00
Filed: 1991-12-06
Abstract: BREVET D'INVENTION AGENT DE CONTRASTE CONSTITUE PAR UN COMPLEXE NEUTRE D'UN CATION PARAMAGNETIQUE ET LIGAND POUR FORMER UN COMPLEXE. Déposant: MEDGENIX GROUP S.A. La présente invention a pour objet un agent de contraste pour l'imagerie par RMN constitué d'un complexe de coordination neutre entre un ligand et un cation métallique, ou un hydrate de ce complexe, de formule : ML. mH2O (I) dans laquelle - M désigne un cation métallique paramagnétique trivalent - m est un entier de 0 à 5 - L est un ligand de formule: A-¢C(R1,R2)-(C(R?,R?))n-C(R3,R4)-N=C(R5)-C(R6)=C(R7)-O!3 (II) dans laquelle - A représente N ou C-R 10, - R1 à R 10' identiques ou différents, sont choisis parmi H, un hydroxyle, un halogène, un groupe alkyle, alcoxy, aryle, alkenyle, cycloalkyle groupes éventuellement substitués par un ou des groupes halogène, hydroxyle, alkyle, alcoxy, nitrile, nitro, amine, ou hydroxyalkyle. - n est un entier de 0 à 3, i est un entier de l à n. La présente invention a également pour objet un ligand pouvant former des complexes de coordination avec des cations métalliques trivalents, caractérisé en ce qu'il répond à la formule: A-¢C(R1,R2)-(C(R?,R?))n-C(R3,R4)-NH-C(R5)=C(R6)-C(R7)=O!3 (III) et un procédé de préparation de ces complexes.
Patent CA-2059746-A1 (CA)
Inventor: GRANGER RICHARD N
IPC: A61F2/00
Filed: 1992-01-21
Abstract: ABSTRACT OF THE DISCLOSURE A method for needle-suture attachment and needle-suture combinations are provided.  A shrinkable tubing is employed to secure the needle to the suture.  The tubing shrinks in response to heat.  Suture materials which are heat labile are desensitized prior to tubing attachment to preserve the integrity of the suture material.  Attachment parameters may be controlled to provide standard needle attachment or removable needle attachment.
Patent CA-2059755-A1 (CA)
Title: Chain belt
Inventor: MOTT PHILIP J
IPC: F16G5/18
Filed: 1992-01-21
Abstract: An endless power transmission chain-belt is disclosed that is especially adapted for drivingly connecting the pulleys of a pulley transmission. The chain-belt has a chain that is an assembly of a plurality of interleaved sets of links. A pivot means extends through the chains to lace and pivotally interconnect adjacent sets of links to provide an endless chain-belt. The sets of links of the chain are held together by the pivot means. A plurality of first load blocks are connected to the chain-belt. The first load blocks have at least one projection that extends in a direction towards the chain. The projection engages adjacent pivot means to secure the first load blocks to the chain. The first load blocks extend substantially across the width of the chain and have a substantially flat first bearing surface that is positioned adjacent the links. Each first load block has lateral edges shaped to frictionally engage the pulleys of the pulley transmission. A plurality of second load blocks are connected to the chain-belt. The second load blocks have at least one projection that extends in a direction towards the chain. The second load blocks have a second bearing surface that is positioned adjacent the links. The second bearing surface is disposed at an angle with respect to the first bearing surface of the first load blocks. The second load blocks are disposed at an angle with respect to said first load blocks when the first and second bearing surfaces are in contact with the links and each second load block has lateral edges shaped to frictionally engage the pulleys of the transmission.
Patent CA-2060286-A1 (CA)
Inventor: MARACH DAVID R
IPC: H01H85/54
Filed: 1992-01-29
Abstract: A fused disconnect device constructed according to the present invention comprises a housing, a line side terminal, a load side terminal, a protection fuse holder assembly removably installed in a cavity of said housing, and a separate alarm fuse removably installed in said housing. The alarm fuse may remain installed in the housing regardless of the presence of the protection fuse holder assembly, so that an alarm will be generated whenever the inventive device has interrupted power to the load. The fuse holder assembly comprises a cavity for holding at least one spare protection fuse and one spare alarm fuse. A cover retains the spare fuses in the cavity until they are required. The cover is marked to indicate the fuse ratings whils permitting an observer to view the contents of the cavity.     In a first embodiment of the invention, the disconnect device is adapted for front-access mounting in a power distribution panel.     The line side terminal is adapted for direct contact with a power supply bus bar. A fastener which is accessible from the front of the device secures the line side terminal to the bus bar. A fastener on the load side terminal extends toward the front of the device so that a load conductor may be installed on that terminal using only front access. Mounting fasteners, including fasteners extending from a rear portion of the device, are each accessible from the front. In a second embodiment of the invention, the disconnect device is adapted for rear-access mounting in a power distribution panel. The line side terminal is adapted for direct contact with a power supply bus bar. A fastener extends from the rear of the bus bar through the bar and into a receptacle in the device in order to secure the line side terminal to the bus bar. A fastener on the load side terminal extends toward the rear of the device so that a load conductor may be installed on that terminal using only rear access. A third embodiment is adapted for use in higher-current applications.
Patent CA-2064660-A1 (CA)
Inventor: KE-XIN LIU
IPC: C05F9/04
Filed: 1992-04-01
Abstract: ABSTRACT         A process is disclosed for the treatment of decomposable organic based waste materials and decomposable organic refuse suitable for use on a municipal or urban scale.   In one aspect the process includes the steps of aerobically decomposing organic based waste material in a digester for about 4 days in a temperature range of about 44-73°C   followed   by   an   anaerobic   decomposition (fermentation) step of about 22 days carried out in the same digester.  Exhaust gases produced during the aerobic decomposition step are purified prior to being discharged to  the  atmosphere  while  biogas  produced  during  the anaerobic decomposition step is collected which may be utilized in power generating applications.   The process provides a decomposed material characterized by low N2 loss and which is sterilized with respect to pathogenic bacteria and parasites such as worm ova.  The resulting decomposed waste material is then discharged from the digester and dried followed by pulverizing.  The pulverized material is then sieved to collect particles below about .5 cm in diameter with the latter being subsequently mixed with a known  chemical  fertilizer  and  the  resulting  mixture granulated to produce a granulated fertilizer.
Patent CA-2064965-A1 (CA)
Inventor: FUJIMOTO MASAHISA
IPC: H01M4/60
Filed: 1992-04-02
Abstract: Provided is a novel lithium secondary battery comprising a positive electrode comprising a compound capable of occluding and discharging lithium, a negative electrode principally comprising a carbon material which comprises a graphite as an only or principal component, a separator placed between the positive electrode and the negative electrode; and an electrolyte solution of an electrolyte solute dissolved in a solvent comprising at least one specific cyclic compound.  The lithium secondary battery has a large capacity, small self-discharge rate and excellent cycle characteristics and high charge-discharge efficiency.
Patent CA-2067267-A1 (CA)
Title: Composition containing 1,1,1,3,3-pentafluorobutane and methanol for the cleaning or drying of solid surfaces
Inventor: MICHAUD PASCAL
IPC: C23G5/028
Filed: 1992-04-27
Abstract: To replace cleaning compositions based on 1,1,2-trichloro-1,2,2-trifluoroethane (F113), the invention proposes a composition comprising, by weight, 93 to 99% of 1,1,1,3,3-pentafluorobutane (F365 mfc) and 7 to 1% of methanol. These two compounds form a positive azeotrope (b.p.=36.5 DEG  C. at normal pressure). The composition, optionally stabilized, can be used for the cleaning and/or drying of solid surfaces, in particular for the removal of flux from printed circuits and for degreasing mechanical parts.
Patent CA-2069062-A1 (CA)
Title: Accessory apparatus and method for mopping floors utilizing a broom
Inventor: EMORY EDWARD P
IPC: A47L13/44
Filed: 1992-05-20
Abstract: ABSTRACT OF THE DISCLOSURE    An accessory for implementation with a variety of configura-tion brooms and the like for the wet or dry mopping of floor surfaces.  The accessory of the present invention is fabricated of an absorbent material such as unadorned terry cloth or the like and is configured to envelope the broom head for providing a mopping head for floor or wall maintenance.   The present invention is easily cleaned when soiled by merely removing it from the broom head and washing it in a clothes washer and dryer, allowing re-use, thereby saving money.   The present invention further teaches a unique method of fabricating an accessory for the mopping of floors and the like, as well as a method for mopping floors utilizing the present accessory.   The present invention provides a sanitary, economical, and effective system for the cleaning and mopping of floors, walls and the like utilizing only a broom as its frame or support, as opposed to the heretofore necessity of a separate mop.
Patent CA-2073567-A1 (CA)
Title: Spicamycin derivatives and the use thereof
Inventor: OTAKE NOBORU
IPC: C07H19/16
Filed: 1992-07-10
Abstract: Disclosed  is  a  novel  spicamycin  derivative represented by the formula (I) or a salt thereof:       wherein R represents an alkenyl having a given number of carbon atoms, a haloalkyl having a given number of carbon atoms, CH3(CH2)nCH(OH)- or CH3(CH2)n-1CH(OH)-CH2- (wherein n denotes an integer of 9-13), an alkyl with a certain group and a given number of carbon atoms,       (wherein a denotes 2, and b denotes an integer of 10-15), CH3(CH2)CSO2O(CH2)d- ,   (wherein c denotes an integer of 0-3 and d denotes an integer of 10-15), (CH3)3Si(CH2)10- , (CH3)3Si-C~C-(CH2)8-,     or   (wherein  X  represents  O  or  S),  and  R1  and  R2  are different from each other and each represents H or OH, which exhibits an excellent antitumor effect and has a high therapeutic index.       An antitumor  agent containing at  least  one of the above-described compounds in an effective amount is also disclosed.
Patent CA-2074053-A1 (CA)
Title: X-ray absorbing glass compositions
Inventor: JONES JAMES V
IPC: C03C4/08
Filed: 1992-07-16
Abstract: A glass, which is particularly adapted to be melted in conventional glass melting furnaces and formed on a molten tin bath, and which demonstrates exceptional absorption of X-rays with a minimum linear absorption coefficient, measured at 0.6 Angstroms, of 24/cm. and having excellent resistance to electron browning and/or X-ray browning and contains the following components, by weight percent:  SiO2 and Al2O3 constituting about 57.0 to 68.0% with SiO2 constituting about 57.0 to 66.0% and Al2O3 constituting about 0 to 5.0%;  K2O and Na2O constituting about  10.0 to  18.0% with K2O constituting about 7.0 to 11.0% and Na2O constituting about 4.0 to 8.0%;  BaO and  SrO constituting about  16.0 to 24.0% with  BaO constituting about 0 to 13.0% and SrO constituting about 11.0 to 21.0%; and CeO2 constituting about 0.1 to 1.0%.
Patent CA-2075660-A1 (CA)
Title: Polybasic acid esters as oil field corrosion inhibitors
Inventor: ALFORD JOHN A
IPC: C09K8/54
Filed: 1992-08-10
Abstract: POLYBASIC ACID ESTERS AS OIL FIELD CORROSION INHIBITORS           Abstract of the Invention A corrosion inhibitor with excellent film forming and film persistency characteristics may be produced by first reacting in a condensation reaction a polybasic acid with a polyalcohol to form a partial ester.  The partial ester is reacted with imidazoline and/or fatty diamines to salt the ester.          If warranted, the salted partial ester may be reacted with a metal hydroxide, a metal oxide, and/or ammonia to further salt the ester.  Surfactants may be added to tailor the inhibitor formulation to meet the specific needs of the user (i.e., the corrosion inhibitor may be formulated to produce an oil-soluble, highly water-dispersible corrosion inhibitor or an oil-dispersible, water-soluble corrosion inhibitor).  Suitable carrier solvents may be employed where needed to effectively disperse the corrosion inhibitor formulation.
Patent CA-2075991-A1 (CA)
Inventor: PILESTED KARSTEN G
IPC: G08B13/24
Filed: 1991-02-19
Abstract: A security system for monitoring the presence in, respectively passage through defined zones such as, e.g. exit areas in shops or stores of objects, for example commodities, which system comprises an antenna (7) with at least one tuning capacitor (1) in the monitored zone and receiver/transmitter devices functioning as tuned resonance circuits on the individual objects monitored, the antenna emitting at short intervals an electrical signal that makes the receiver/transmitter device of a monitored object, which is present in the monitored none, oscillate, which oscillations in the intermissions between antenna (7) transmissions can be received by the antenna (7) - or by a separate antenna - and used to detect the presence of the monitored object in the monitored zone. A switch (3) is provided in the electrical circuit between the antenna (7) and the tuning capacitor (1).
Patent CA-2078060-A1 (CA)
Title: Method for production of ethylene oxide
Inventor: SAWADA MASAYUKI
IPC: C07D301/10
Filed: 1992-09-11
Abstract: The production of ethylene oxide by the catalytic vapor phase oxidation of ethylene with a molecular oxygen-containing gas  is  effected  in a reactor  provided with a preheating  zone,  a  reaction  zone,  a  cooling  zone,  a partition plate separating the first two portions from the third portion, and a multiplicity of reaction tubes piercing the  two  separated  sections  by  a  method  which  comprises supplying hot water  to  the cooling  zone  of  the reactor, forwarding zone of the hot water discharged from the cooling zone  to  a  gas-liquid  separation  tank,  circulating  the remainer of the hot water in conjunction with the cooling hot  water  to  the  cooling  zone,  supplying  the  hot  water separated in the gas-liquid separation tank to the reaction zone  to  remove  the  heat  of  the  oxidation  reaction,  and circulating the hot water extracted in the form of a gas-liquid mixed phase to the gas-liquid separation tank.   The method  is  excellent  to  prevent  isomerization of  ethylene oxide to acetaldelyde which is impurity, excels in thermal efficiency and exhibits  ideal durability of the partition plate.
Patent CA-2078913-A1 (CA)
Title: Interprocessor communication system and method for multiprocessor circuitry
Inventor: REILLY JOHN J
IPC: G06F15/16
Filed: 1992-09-23
Abstract: ABSTRACT      A system for direct interprocessor communication in a multiprocessor  data  processing  environment.   The  system utilizes  conventional  direct  data  transfer  means  and existing I/O port instruction capabilities available on most microprocessors.   A  destination  processor  requiring  data from  one  of  a  source  processor s  internal  registers generates  a unique  address  which  specifies  the  register containing the required data.  The address is sent to the data transfer means, causing the direct transfer of data from the designated source processor internal register to the destination processor.  Specific circuitry to accomplish this direct data transfer function is described.
Patent CA-2079862-A1 (CA)
Title: Adaptive motion compensation using a plurality of motion compensators
Inventor: KRAUSE EDWARD A
IPC: H04N7/36
Filed: 1992-10-05
Abstract: Digital video signals are adaptively compressed for communication to a receiver.  A plurality of block-matching motion compensators (30, 32), each using a different block size, compare current video image data to prior video image data.  Video image data output from the motion compensators is compressed (14, 18), and the compressed data from each motion compensator is compared (20) to find which motion compensator results in the least amount of compressed data for a region of a current video image corresponding to the smallest of the block sizes.  The compressed data having the lowest bit count is transmitted to a receiver for recovery of a motion vector.  The recovered motion vector is used to recover current video image data from the transmitted data and previously received video image data.