baber/WOPTO huggingface dataset:
Patent CA-2010097-C (CA)
Title: Method and apparatus for detecting gear defects
Inventor: HERNANDEZ WALTER C
IPC: G01M13/02
Filed: 1990-02-14
Granted: 1994-11-29
Abstract: A gear defect analyzing system records the interaction of each tooth of a gear system until the interaction begins to repeat and then processes the information in such a way as to identify defective  gear teeth.   Signals  from a gear box are detected by an accelerometer and a shaft encoder and fed to an interface  circuit  and then to an analog signal preprocessing circuit.  The preprocessing circuit conditions the signal so that it  can be  analyzed by a microcomputer.   The  system has the capability  of  identifying  the  class  of  incoming  signals, determining the optimal time domain average, eliminating unwanted spectral  components  and  interference,  computing  specific measurements relating to gear wear and then performing analysis of  time  history  within  a  given  system  operating  state  to determine which gears and gear teeth are defective.  By recording each tooth-to-tooth interaction over a period of time, and then processing the recorded matrix of data, it is possible to locate individual  tooth  defects.    The  system  is  also  capable  of detecting, classifying, and analyzing other types of hard-to-find defects.
Patent CA-2015291-C (CA)
Title: Macromolecular endoplasmic reticulum
Inventor: HASEGAWA ETSUO
IPC: A61K9/127
Filed: 1990-04-24
Granted: 1996-04-30
Abstract: The present invention relates to a macromolecular endoplasmic reticulum which comprises a polymer obtained by polymerization of a mixture containing one or more polymerizable phospholipids, cholesterol and one or more polymerizable fatty acid. The macromolecular endoplasmic reticulum in which surface charge is fixed to negative can be used as a carrier of medicine, enzyme, hemoglobin, etc. in industrial fields or medical fields.
Patent CA-2016089-C (CA)
Title: Salts of azelastine having improved solubility
Inventor: FLEISCHHAUER ILONA
IPC: A61P29/00
Filed: 1990-05-04
Granted: 1998-12-01
Abstract: Salts of azelastine with acetic acid, gluconic acid, lactic acid or malic acid are described.  Such salts have anti-allergic and antihistaminic properties.
Patent CA-2024495-C (CA)
Title: Formulation for extrudable vinylidene chloride copolymers having high barrier properties
Inventor: NAUMOVITZ JOHN A
IPC: C08K3/22
Filed: 1990-08-31
Granted: 2002-01-29
Abstract: The present invention is a formulated barrier composition containing tetrasodium pyrophosphate or magnesium hydroxide, high density polyethylene, epoxi-dined vegetable oil, oxidized polyolefin and a paraffin or polyolefin wax. The composition has a substantially lower oxygen permeability than existing compositions and is at least equally extrudable.
Patent CA-2024771-C (CA)
Title: Optical interconnection apparatus
Inventor: OGURA ICHIRO
IPC: G06N99/00
Filed: 1990-09-06
Granted: 1993-06-29
Abstract: ABSTRACT OF THE DISCLOSURE       A matrix of optical functional devices are divided into plural device units.  Each of the device units includes at least two optical functional devices having light transmitting coatings.  The coatings have transmission factors which are different from each other.  Light signals emitted through the coatings from the at least two optical functional devices in each unit are received by a corresponding light receiving device among light receiving devices arranged in a one-dimensional pattern.   In each device unit optical functional devices to be driven are selected, so that a coupling degree between each device unit and the corresponding light receiving device is changed.
Patent CA-2026569-C (CA)
Title: Basic mixed oxide
Inventor: SCHUTZ ALAIN A
IPC: C07C49/203
Filed: 1990-04-05
Granted: 1996-12-17
Abstract: Basic mixed oxides useful for base catalyzed reactions such as the aldol condensation of acetone and also useful as catalyst supports are made by mixing an acid such as nitric acid or acetic acid with Pseudoboehmite to form a gel, adding magnesium oxide or hydroxide, in a ratio of magnesium to aluminum of about 1:1 to about 10:1, agitating and heating for about 1 to 24 hours, and subsequently drying and calcining. The resulting polymorphic magnesium-aluminum oxide composition is highly effective in the aldol condensation of acetone to isophorone, and other base catalyzed reactions such as isomerization of olefins, aldol condensation of aldehydes.
Patent CA-2027547-C (CA)
Inventor: PELRINE BRUCE P
IPC: C10N20/00
Filed: 1990-02-15
Granted: 1999-08-31
Abstract: On améliore la stabilité thermique de lubrifiants synthétiques composés d'oligomères d'alpha-oléfines par réaction avec une oléfine telle que la décène ou les oléfines de faible masse moléculaire de la gamme non lubrifiante, produites au cours de l'oligomérisation de 1-alcènes. On procède à l'alcoylation de l'oligomère de la gamme lubrifiante à l'aide d'un catalyseur d'alcoylation acide tel qu'un catalyseur solide à pores ouverts, par exemple de l'oxyde d'aluminum fluoré. Les compositions lubrifiantes améliorées de l'invention comprennent une composition d'oligomère lubrifiant liquide d'indice de viscosité élevé, contenant des hydrocarbures C30-C1300 comportant au moins une ramification d'alcoyle inférieur contenant entre 12 et 40 atomes de carbone. Dans un mode de réalisation préféré, la nouvelle composition lubrifiante alcoylée a un rapport de ramification entre le méthyle et le méthylène inférieur à 0,19, ainsi qu'un point d'écoulement inférieur à -15 C.
Patent CA-2029516-C (CA)
Title: Siloxanes useful in permanent waving of hair
Inventor: HALLORAN DANIEL J
IPC: A61K8/891
Filed: 1990-11-07
Granted: 1995-09-05
Abstract: The use of siloxanes for conditioning of hair is disclosed. They hold particular usefulness as substitutes for oxidizing agents in the hair waving process.  A novel polymeric composition which comprises a silanol endblocked polydiorganosiloxane, cyclic siloxanes, a chlorobenzyl-functional siloxane and a catalyst is also disclosed.
Patent CA-2029685-C (CA)
Title: Isdn terminal equipment operating with circuit switching mode and packet switching mode
Inventor: HASEGAWA KENICHI
IPC: H04N1/32
Filed: 1990-11-09
Granted: 1994-10-04
Abstract: ISDN TERMINAL EQUIPMENT OPERATING WITH CIRCUIT SWITCHING MODE AND PACKET SWITCHING MODE                  ABSTRACT OF THE DISCLOSURE       ISDN terminal equipment containing: a circuit switching communication unit, a packet communication unit, a manual starting unit, an unsuccessful try detecting unit, and a retrying unit. The manual starting unit starts an operation of a setting up of a call using a predetermined one of the circuit switching communication unit and the packet communication unit when receiving a manual start input. The unsuccessful try detecting unit detects that data communication has not been successfully begun by the operation of the manual starting unit. The retrying unit starts an operation of a setting up of a call using the other of the circuit switching communication unit and the packet communication unit when the unsuccessful try detecting unit detects that the data communication has not been successfully begun by the operation of the manual starting unit.
Patent CA-2033216-C (CA)
Title: U-shaped unitary spring clip and method for installing tire chains
Inventor: DESCHENES JOSEPH
IPC: B60C25/00
Filed: 1990-12-27
Granted: 1997-08-12
Abstract: The present  invention relates  to a tool  for mounting tire chains upon large tires by means of a shaped resilient steel bar.  The device comprises a U-shaped steel bar with a base and arms with inward curvatures from about the mid-point of each of the arms of the device and extend-ing to the ends of said arms.  The arms are formed so as to avoid marking or cutting into the soft sidewall sections of the pneumatic tires upon which the device might be in-stalled.  One end of a tire chain's hooks are inserted at the outer corners and upon the tool which is removably mounted upon the tire or dual-wheeled tire configurations frictionally grasping the outer sidewalls of said tire or tires and the chain.
Patent CA-2034990-C (CA)
Title: Package for a combined surgical suture-needle device
Inventor: BROWN DAVID L
IPC: A61B17/06
Filed: 1991-01-25
Granted: 1996-07-16
Abstract: A package is provided for a combined surgical suture-needle device featuring a peelable, or strippable, closure flap.
Patent CA-2036306-C (CA)
Title: Paper towel dispenser (with brake)
Inventor: MORAND MICHEL
IPC: B65H16/04
Filed: 1991-02-13
Granted: 1993-11-09
Abstract: ABSTRACT         A dispenser for dispensing a paper sheet from a paper roll having a core.  The dispenser can have spindle means made of two separate sleeves.  The sleeves are inserted in opposite ends of the core and frictionally retained therein. A support is rotatably mounted in one sleeve to support the roll.  A brake member is rotatably mounted in the other sleeve and selectively cooperates therewith to brake rotation of the roll on the support.
Patent CA-2037481-C (CA)
Title: Method of preparing oxide superconducting film
Inventor: HAYASHI NORIKI
IPC: H01L39/24
Filed: 1991-03-04
Granted: 1998-11-10
Abstract: An oxide superconducting layer is formed on a base material of silver, whose single side is coated with MgO, or single-crystalline MgO for depositing a Bi2Sr2Ca2Cu3 phase in a crystallographically oriented state by sputtering, CVD or laser ablation, then metal lead or lead oxide is laid thereon by sputtering to obtain a two-layer structure, and the two-layer structure is heat treated in the atmospheric air.  Thus, a bismuth oxide superconducting film, which is excellent in crystal orientation as well as denseness and thereby being increased in critical current density, is formed on the base material.
Patent CA-2053719-C (CA)
Title: Drilling apparatus, particularly wire line core drilling apparatus
Inventor: LAPORTE IRVIN JOSEPH
IPC: E21B25/02
Filed: 1991-10-18
Granted: 1996-12-10
Abstract: This invention relates to a wire line core barrel  inner  tube assembly  capable  of  travelling longitudinally within a drill string toward and away from a drill bit carried on the lower end of the string, the drill  string having  an annular landing shoulder therein.       The  inner  tube  assembly  includes  an elongated  body  having  an  annular  landing  shoulder adapted  to  co-operate with  and  seat  on  the  landing shoulder of the drill string when in use.  The body has a valve chamber defined therein and inlet and outlet ports leading from the valve chamber to the exterior of the body on opposite sides of the landing shoulder. These define a by-pass passage through which drilling liquid passing along the drill string must flow on its way toward the bit when the landing shoulder of said body is seated on the landing shoulder of the drill string.   The valve chamber has a valve seat therein and a valve closure is located within the valve chamber.  A biasing  device  urges  the  valve  closure  against  the valve  seat  with a  selected pre-loading  force  as  to prevent  flow of drilling  liquid through the by-pass passage and toward the drill bit until the pressure differential across the valve closure is increased to a level  sufficient  to  overcome  the  pre-loading  force applied by the biasing device.
Patent CA-2054405-C (CA)
Title: Method and apparatus for the billing of value-added communication calls
Inventor: CHAU NGA V
IPC: H04Q11/04
Filed: 1991-10-29
Granted: 1995-03-21
Abstract: A call billing method and apparatus establishes an ISDN connection between the network and a called location which enables the called location to specify call billing information to the network, via the ISDN connection, on a call-by-call basis. The method provides the called party real time access to network rate tables to specify call billing parameters needed to generate a separate billing record for each call made to the called location. Other features enable the caller or called location to provide various types of information for call billing purposes.
Patent CA-2054794-C (CA)
Inventor: STALLMO DAVID CHARLES
IPC: G06F11/20
Filed: 1991-11-01
Granted: 2001-04-24
Abstract: A redundant array storage system that can be configured as a RAID 1, 3, 4, or 5 system, or any combination of these configurations. The invention comprises a configuration data structure for addressing a redundant array storage system, and a method for configuring a redundant array storage system during an initialization process. The redundant array storage system comprises a set of physical storage units which are accessible in terms of block numbers. The physical storage units are each configured as one or more logical storage units. Each logical storage unit is addressed in terms of a channel number, storage unit number, starting block number, offset number, and number of blocks to be transferred. Once logical storage units are defined, logical volumes are defined as one or more logical storage units, each logical volume having a depth characteristic. After the logical volumes are defined, redundancy groups are defined as one or more logical volumes. A redundancy level is specified for each redundancy group. The redundancy level may be none, one, or two. Logical volumes are addressed by a host CPU by volume number, initial block number, and number of blocks to be transferred. The host CPU also specifies a READ or WRITE operation. The specified volume number, initial block number, and number of blocks to be transferred are then translated into a corresponding channel number, storage unit number, starting block number, offset number, and number of blocks to be transferred. With the present invention, it is possible for a logical volume to span across physical storage units ("vertical partitioning"), comprise only a portion of each such physical storage unit ("horizontal partitioning"), and have definable depth and redundancy characteristics.
Patent CA-2061040-C (CA)
Title: Compatible corrosion inhibitor combinations
Inventor: MILLER DAVID L
IPC: C23F14/02
Filed: 1992-02-11
Granted: 2001-10-02
Abstract: Solutions of potassium, aliphatic monocarboxylate, hydrocarbyl dicarboxylate and hydrocarbyl triazole, with one or more silicate, phosphate, borate, or nitrate, have superior compatibility and anticorrosion properties, useful in heat transfer fluids, antifreezes and metal corrosion inhibition.
Patent CA-2061889-C (CA)
Title: Jumper cable winding reel
Inventor: DRUDIK ARNIE
IPC: H02G11/02
Filed: 1992-02-26
Granted: 2000-02-29
Abstract: A central hub for a reel assembly for the storage and deployment of automotive jumper cable having, a hub storage compartment which is accessible through either hub or hub plate apertures on opposite sides of a reel assembly, allowing bilateral access to stored clamps. The hub wall defining a central storage compartment which is capable of maintaining jumper cable clamps therein without the need for devices or closures. In the preferred embodiment the hub has a minimum of movable parts and a double inner wall providing the cable clamp retention means; both contributing to durability and ease of use under frozen and wet seasonal conditions.
Patent CA-2062605-C (CA)
Title: Broad linewidth lasers for optical fiber communication systems
Inventor: HUBER DAVID R
IPC: H04B10/588
Filed: 1992-03-10
Granted: 1997-12-23
Abstract: Non-linear effects in an optical fiber used for communicating AM signals at high power levels are reduced by increasing the linewidth of the pump laser output signal.  The linewidth can be increased by optically broadening the laser output signal by driving an optical angle modulator with broadband electrical noise.  The optical signal is then externally modulated with an AM information signal for transmission over an optical link fiber.  The optical modulation can be provided using either an FM or PM optical modulator.  A desired linewidth can be provided by controlling the optical modulation index during the optical modulation step and/or by controlling the bandwidth of the noise source. Other techniques for broadening a laser output signal, including modulating the signal by a periodic function such as a sine wave, or injecting spontaneous emissions into the laser cavity, are also disclosed.
Patent CA-2063525-C (CA)
Title: Least cost routing method according to information transfer capability of customer premises equipment
Inventor: HOKARI MAKOTO
IPC: H04M3/42
Filed: 1992-03-19
Granted: 1996-01-16
Abstract: ISDN subscriber line interface circuits of a switching system serve customer premises equipment of different information transfer capabilities. Least cost routing data and corresponding digit conversion data are stored in a memory, with the routing data indicating least cost outgoing routes through an ISDN network. These data are retrieved from the memory according to the called party number and information transfer capability field of a call setup message received from a calling party. The called party number is then converted according to the retrieved digit conversion data, and an ISDN trunk circuit is selected according to the retrieved least cost routing data. A connection is established between the originating ISDN SLIC and the selected ISDN trunk circuit, and the converted called party number is transmitted through a signaling channel to the ISDN network.
Patent CA-2066638-C (CA)
Title: Powder coating compositions
Inventor: CHANG YEONG-HO
IPC: C08G18/79
Filed: 1990-11-13
Granted: 1997-09-16
Abstract: Disclosed are thermosetting, powder coating compositions comprised of semi-crystalline polyesters and certain adducts of the 1,3-diazetidine-2,4-dione dimer of isophorone diisocyanate which are readily curable at temperatures and times commonly used to cure (cross-link) powder coatings. When using equivalent curing conditions, the disclosed coating compositions exhibit a higher degree of cross-linking than do combinations of amorphous polyesters and the adducts of the 1,3-diazetidine-2,4-dione dimer of isophorone diisocyanate.
Patent CA-2069437-C (CA)
Title: Process for control of fruit ripening in plants
Inventor: BRIDGES IAN G
IPC: C12N15/09
Filed: 1990-11-26
Granted: 2002-11-05
Abstract: The ripening of fruit is retarded in inhibiting production of one or more enzymes selected from pectinesterase, galactosidase, glucanase, xylanase, cellulase and polygalacturonase involved in the ripening process. Inhibition is effected by introducing into the genome of a fruit-producing plant by genetic transformation a recombinant DNA which codes for only part of one or more of the said fruit-ripening enzymes.
Patent CA-2079721-C (CA)
Title: Rotary apparatus with moveable die
Inventor: BODNAR ERNEST R
IPC: B21D28/36
Filed: 1992-10-02
Granted: 2002-08-20
Abstract: A rotary apparatus for rotary forming of a web workpiece and having a rotatable first roll unit and corresponding rotatable second roll unit, a first die support carried by the first roll unit, having a leading edge and a trailing edge respective to rotation of the first roll unit, a second die support carried by the second roll unit, having a leading edge and a trailing edge respective to rotation of the second roll unit, the first and second roll units receiving a web workpiece in a forming plane between the first and second roll units, and in which each die support includes a first part carried by the respective roll unit and including the leading and trailing edge and a second part having a platen surface for mounting a die, the second part being mounted on the first part for reciprocal motion transverse to the leading and trailing edges.
Patent CA-2081524-C (CA)
Title: Tensioning apparatus for a web threading endless rope
Inventor: BRACKEN KENNETH L
IPC: D21G9/00
Filed: 1992-10-27
Granted: 2004-02-10
Abstract: A compact rope stretcher maintains the tension in an endless rope used for threading a web in a papermaking machine and includes an elongated H-beam having a flange engaged by guide wheels supporting a pair of separate carriages. The carriages support corresponding rope sheaves for free rotation, and a pair of fluid cylinders are mounted on opposite sides of the beam web and have piston rods connected directly to the corresponding carriages by laterally floating links. Proximity sensors are mounted on opposite end portions of the H-beam for indicating when the rope stretch is reaching a limit, and the beam supports a full length cover which encloses and protects the carriages and cylinders.
Patent CA-2083883-C (CA)
Title: Device for distributing pneumatically handled, pulverulent solids into a large diameter annular section, and kiln equipped therewith
Inventor: JORGET SERGE
IPC: F27B7/20
Filed: 1992-11-26
Granted: 1999-03-30
Abstract: The present invention relates to a device for distributing solid pulverulent materials, transported pneumatically, in an annular section of large diameter, in particular for feeding vertical calcining kilns. 
<??>The device to which the invention relates is characterised in that it comprises an annular chamber (32) with an axis which is vertical or close to vertical, which is closed at its upper end and the section of which, in a plane perpendicular to the axis of the device, has an area which is constant in its upper part and then decreases progressively as far as its lower end where an annular outlet opening (28) is provided, and in that the pipe (40) for admission of the flow of gas transporting the solid materials is connected to the upper part of said chamber so that said flow penetrates the latter in an approximately radial direction. 
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Patent CA-2094057-C (CA)
Title: Process for the production of polyethylene
Inventor: KAO SUN-CHUEH
IPC: C08F10/02
Filed: 1993-04-15
Granted: 1996-12-24
Abstract: A process for the polymerization of ethylene or a mixture comprising ethylene and one or more alpha-olefins and, optionally, a diene, comprising passing, under polymerization conditions, the aforementioned monomer(s) into contact with a catalyst system comprising:            (a) the reaction product of (i) a titanium based catalyst precursor having the formula MgaTi(OR)bXC (ED)d wherein ED is an electron donor R is an aliphatic or aromatic hydrocarbon radical having 1 to 14 carbon atoms or COR' wherein R' is an aliphatic or aromatic hydrocarbon radical having 1 to 14 carbon atoms;     each OR group is the same or different; each X is independently chlorine, bromine, or iodine;     a is 0.5 to 56; b is 0, 1, or 2; c is 2 to 116; and d is 2 to 85; and (ii) at least one activator having the formula Al(R')eX'fHg wherein X' is Cl or OR"            R' and R" are the same or different and are saturated hydrocarbon radicals having 1 to 14 carbon atoms f = 0 to 1.5 g = 0 or 1 e+f+g = 3; and (iii) an alkyl, alkoxy, aryl, or aryloxy phosphine oxide, or mixtures thereof, in an amount sufficient to replace about 1 to about 80 mole percent of the electron donor in the precursor, and in a molar ratio of phosphine oxide to titanium of 0.1:1 to 8:1 wherein component (a) is impregnated into an inorganic support; and (b) a hydrocarbyl aluminum cocatalyst.
Patent CA-2095409-C (CA)
Inventor: VISHNUPAD MOHAN
IPC: C11D3/20
Filed: 1993-05-03
Granted: 1999-01-12
Abstract: Cosmetically elegant anhydrous foaming creams contain high levels of glycerin and emollients, sodium cocoyl isethionate at levels of 19% or less and an effective amount of a detergent additive to increase the softness of the composition. The detergent additive is preferably one of the following: sodium lauryl sulfate, a sodium salt of fatty acid taurate, an acyl glutamate, an .alpha.-olefin sulfonate or a neutralized lauryl phosphoric acid. The detergent additive can be present in an amount from about 1 to about 20 weight percent.