baber/WOPTO huggingface dataset:
Patent CA-2004608-C (CA)
Inventor: BEYER-OLSEN KNUT
IPC: B63B22/00
Filed: 1989-12-05
Granted: 1996-07-09
Abstract: An  elongated  buoy  with  protruding  external  ribs extending about the circumference of the buoy.   The ribs are oriented substantially perpendicular to the longitudinal axis of the buoy and create turbulence when the buoy is dragged upon the surface of the water.  The turbulence results in decreased drag and permits easier and faster retrieval of the buoy by a crew member hauling in by hand a line attached thereto.
Patent CA-2019975-C (CA)
Inventor: ARAOKA TOSHINOBU
IPC: B01F25/60
Filed: 1990-06-27
Granted: 1996-07-23
Abstract: An apparatus for producing stabilizing mixture is diclosed.  The apparatus is characterized in that an underwater pwmp provided with a suction port and at least one discharge port is disposed in a stirring water tank, that suction port and the discharge port are opened into the stirring water tank, and that the other end of a bentonite intake pipe having one end connected to a supply source for bentonite or the like is connected to the discharge port whereby the bentonite or the like can be sucked into the discharge port due to the negative pressure generated in the discharge port when the underwater pwmp is driven and vigorously mixed with water to produce a stabilizing mixture of uniform concentration.
Patent CA-2025065-C (CA)
Title: Lock-out valve with controlled restart
Inventor: BONACORSI DENNIS L
IPC: F16K11/07
Filed: 1990-09-11
Granted: 1994-12-20
Abstract: ABSTRACT OF THE DISCLOSURE           A lock-out valve is designed to direct pressure fluid to an operational port and system, and to exhaust such pressure for purposes of repair or reconstruction of a valve controlled system.  The valve may be quickly moved to the exhaust phase by a manual stroke overriding threads between two concentric parts.          However, reverse motion of the valve to re-establish pressure to the operational port can only be accomplished by a turning action on the manual actuator.  This insures a slow return of pressure to the system and a slow start up so that the controlled system can be safely and properly reset.  The thread design is such that the motion in one direction will override the threads but prevent reverse action except by turning.
Patent CA-2025409-C (CA)
Title: Shaft furnace
Inventor: MOLENAAR RONALD NICOLAAS
IPC: C21B7/14
Filed: 1990-09-14
Granted: 1996-02-20
Abstract: A shaft furnace with a steel outer shell and a refractory lining inside the shell, has a sealed tap hole structure comprising a steel sleeve fitted to the outer shell, a permanent lining inside the sleeve and a refractory sealing material within said permanent lining.   To improve the gas-tightness of the tap hole structure, a metal closure plate having an opening at which the tap hole is to be formed, is located within the steel sleeve and has its periphery coupled gas-tightly to the sleeve.  A metal closure sleeve is coupled gas-tightly to said closure plate around said opening thereof and extends outwardly from said closure plate.  Means e.g. conductive bricks are provided for removing heat from the closure plate and the closure sleeve.
Patent CA-2030245-C (CA)
Inventor: ASANUMA TADASHI
IPC: B29C35/00
Filed: 1990-11-19
Granted: 1994-07-12
Abstract: ABSTRACT OF THE DISCLOSURE      A molded article of a syndiotactic polypropylene having excellent transparency in which a melting point attributed to the polypropylene having the syndiotactic structure measured at a heating rate of 10°C/minute by differential scanning thermal analysis is represented by a substantially single peak, the aforesaid molded article being prepared by heating, melting and then hot-molding a homopolymer of propylene or a copolymer of propylene and a small amount of another olefin, which have a substan-tially syndiotactic structure, or a mixture of the homopolymer or the copolymer and a small amount of a polypropylene having a substantially isotactic structure, followed by quenching, or, after these steps, addition-ally subjecting the above molded article to a heat treatment at a temperature of less than its melting point.  A method for preparing the above molded article is also disclosed here.
Patent CA-2043967-C (CA)
Title: Compression drill guide
Inventor: GISIN PAUL
IPC: B25H1/00
Filed: 1991-06-05
Granted: 1999-03-30
Abstract: A drill guide for drilling screw holes in bone fragments that are to be stabilized by means of a device composed of a compression plate and round-headed screws, the drill guide having a hollow outer cylinder and hollow inner cylinder, positioned so that the hollow inner cylinder can be slid axially within the outer cylinder by means of a spring mechanism, the plate-side end of the outer cylinder and the plateside of the inner cylinder having the shape of the spherical underside of the head and the shank of the screws to be used, respectively.
Patent CA-2046986-C (CA)
Title: Centralized control unit for the control in position of a seat
Inventor: LEROY YANNICK
IPC: B60N2/34
Filed: 1991-07-12
Granted: 1996-03-05
Abstract: The centralized control unit contains supply circuits for supplying various motors controlling movements of parts of a vehicle seat, an in-board power source for feeding said supply circuits, an inverting device for enabling a control with inversion in rotation direction of the various motors, and a stud carrying wheel having a set of studs for enabling a selection of each of the various motors, each of said set of studs being connected to a circuit of one of the various motors for controlling one of the parts of the seat.
Patent CA-2048498-C (CA)
Title: Thermal conductive colored aluminum nitride sintered body and method of preparing the same
Inventor: SHIMODA KOUHEI
IPC: C04B35/581
Filed: 1991-08-06
Granted: 1995-12-05
Abstract: Disclosed herein is an A?N sintered body which is colored, excellent in thermal conductivity and useful as an electronic material, and a method of preparing the same.  The thermal conductive colored A?N sintered body contains 100 parts by weight of A?N, 0.005 to 0.5 parts by weight of carbon, not more than 1 part by weight of a boron compound in terms of the simple substance of boron, 0.01 to 15 parts by weight of a rare earth aluminum oxide in terms of the simple substance of the rare earth element, and 0.01 to 15 parts by weight of a compound containing an element belonging to the group IVB of the periodic table in terms of the simple substance of the element, and its thermal conductivity is 100 to 270 W/mK at the ordinary temperature.  This A?N sintered body is obtained by shaping a mixture into a prescribed configuration and thereafter firing the as-formed compact in a non-oxidizing atmosphere containing at least 10 percent by volume of nitrogen under a temperature of 1500 to 2100°C.
Patent CA-2050120-C (CA)
Inventor: MATSUDA HIROSHI
IPC: H01L21/68
Filed: 1991-08-28
Granted: 1998-08-25
Abstract: An information process apparatus comprising:      a recording medium; a magnetic material having a predetermined magnetization pattern with respect to the recording medium;      a first means for detecting the magnetization pattern of the magnetic material;      a second means for detecting a change of the recording medium; and a third means for driving the recording medium and the second means relative to each other, based on a signal from the first means.
Patent CA-2054495-C (CA)
Title: Foamed polyurea elastomer
Inventor: PRIMEAUX DUDLEY J II
IPC: C08J9/02
Filed: 1991-10-29
Granted: 2003-05-20
Abstract: A polyurea elastomer foam is disclosed. Specifically, the polyurea foam of this invention includes an (A) component including an isocyanate and a (B) component including (1) a primary amine terminated polyoxyalkylene polyol, (2) a chain eattender, (3) water employed as the sole blowing agent and (4) a surfactant employed as a foam stabilizer.        The polyurea foam of this invention is characterized as a rigid, closed cell foam.
Patent CA-2057009-C (CA)
Title: Stator mounting arrangement
Inventor: WINTERMUTE PAMELA B
IPC: H02K1/18
Filed: 1990-06-25
Granted: 1993-07-20
Abstract: SUBSTITUTE                       REMPLACEMENT               SECTION is not Present Cette Section est Absente
Patent CA-2059078-C (CA)
Title: Mediation of transactions by a communications system
Inventor: FRASER ALEXANDER G
IPC: G06Q20/40
Filed: 1992-01-09
Granted: 1995-10-03
Abstract: Methods and apparatus for employing a communications system with actively connects communicating entities to mediate transactions. Disclosed are general methods and apparatus for mediating transactions, methods and apparatus permitting information from one transaction to be used in other transactions, and methods and apparatus for performing credit card transactions in which the vendee need not disclose his credit card to the vendor. An implementation of a system for performing credit card transactions in a stored program-controlled telephone switching network is also disclosed.
Patent CA-2064029-C (CA)
Title: Use of mycobacterium vaccae in the prevention of aids
Inventor: STANFORD JOHN L
IPC: A61P31/12
Filed: 1990-07-27
Granted: 1998-12-29
Abstract: The invention relates to the use of antigenic and/or immunoregulatory material derived from Mycobacterium vaccae for immunoprophylactic treatment against the AIDS syndrome.
Patent CA-2064117-C (CA)
Title: 4"-and 4'-alkylthio-avermectin derivatives
Inventor: MEINKE PETER T
IPC: C07D493/22
Filed: 1992-03-26
Granted: 2004-07-13
Abstract: Avermectin derivatives are disclosed wherein the 4"-hydroxy group is replaced by a substituted alkylthio or acylthio group or an iodo group. These avermectin derivatives can be further derivatized at the 5- and 23-positions as ketoximes or 0-substituted ketoximes. The 4"-substituted avermectin derivatives are prepared from the 4"- and 4'-trifluoromethane-sulfonyl avermectin derivatives with halo- or sulfur-containing nucleophiles. The 4"- and 4'-.alpha.-and .beta.-trifluoromethane sulfonates are prepared selectively and converted into 4"- or 4'-alkyl- or acylsulfides, or iodides using the appropriate sulfur-containing or iodine nucleophile. Substituted sulfoxy and sulfonyl substituents at the 4"- and 4'-positions are prepared from oxidation of the corresponding substituted sulfides. The new compounds are potent anti-parasitic agents; in particular, the compounds are anthelmintic, insecticidal and acaricidal agents.
Patent CA-2073752-C (CA)
Title: Pressure sorter
Inventor: RIENECKER REIMUND
IPC: B01D29/35
Filed: 1992-07-13
Granted: 2002-01-29
Abstract: A pressure sorter for n suspension flow includes a cylindrical housing having at least one inlet opening and at least one outlet opening with a defined pressure drop therebetween. A rotationally symmetric screen basket defining an axis is disposed within the housing. The screen basket has a plurality of openings defining a total screen perforation passage area. The axis of the screen basket it positioned offset a distance of 6 to 12% of the diameter of the screen basket. The axis of the screen basket is disposed in a plane which extends through the housing axis and is perpendicular to the housing outlet opening. A rotor and suspension sorting space are disposed centrically within the screen basket. An accepts space is disposed radially outward of the screen basket between the screen basket and the housing. The accepts space has a cross section causing a pressure drop between the suspension sorting space and the accepts space resulting in a suspension flow through the screen openings having a maximum velocity of 2.5 m/s, and a deviation to higher suspension flow velocity values from an arithmetic mean based on the total screen perforation passage area across the entire screen basket circumference amounting to a maximum of 25% of the mean value.
Patent CA-2073971-C (CA)
Title: Underpinning anchor system and method of underpinning existing structures
Inventor: HAMILTON DANIEL
IPC: E02D27/48
Filed: 1990-12-28
Granted: 1996-05-07
Abstract: A low cost, easy to install underpinning apparatus (14) for supporting below-grade structural footings such as foundations (10) or the like is provided which makes use of a power installed, load-bearing helix-type screw anchor (16) together with a connecting bracket assembly (18) secured to the foundation (10).  The anchor (16) is screwed into the earth below the foundation (10), leaving the upright end of the an-chor shaft (20) adjacent the foundation (10).  The bracket assembly (18) advantageous-ly includes a foundation-engaging plate (28) with a pair of spaced, outwardly extend-ing wall portions (30, 32) rigidly secured thereto.  An elongated, U-shaped bracket (36) together with a mating retainer (42) are releasably secured to the wall portions (30, 32) and serve to captively retain the upper end of the anchor shaft (20), with the U-bracket (36) having a top crosspiece wall (38) provided with a threaded opening (40) therethrough.  A threaded, force-transmitting bolt (54) screwed into the bracket crosspiece (38) engages the uppermost butt end (22) of the anchor shaft (20) so that the anchor (16) becomes a load-bearing support for the foundation (10).  Rotational torque is imparted to each screw anchor during installations as a force independent of a respective support and the foundation until a predetermined torque value is achieved.  The rotational torque on the screw anchor is then relieved and the dead weight and any live load of the building structure carried by the bracket assembly is transferred to the screw anchor.
Patent CA-2074160-C (CA)
Inventor: GRUETZMACHER RICHARD J
IPC: F16B7/04
Filed: 1992-07-17
Granted: 1995-12-12
Abstract: A cutting guide assembly consists of a pair of guide rails in end-to-end abutting relationship with a clamping plate frictionally engaging each guide rail to secure the rails together.  Each guide rail has a cross section defining a channel.  A ramped or inclined lip is disposed within the channel, and is engaged by the end of a flange provided on the clamping plate to force the flange toward an inwardly facing stop surface defined by a wall of the guide rails.  A series of set screws provide relative downward movement of the clamping plate, to cause the end of the flange to ride on the inclined surface and to force an outwardly facing surface of the flange against the stop surfaces of the guide rails.  In this manner, the vertical guide surfaces of the guide rails are automatically aligned with each other when the rails are secured together.  The clamping plate includes a second flange, which engages a supporting surface formed on a second inwardly extending lip.  The second flange moves along the supporting surface during tightening down of the clamping plate, to accommo-date the other flange riding along the inclined surface.
Patent CA-2075497-C (CA)
Title: Charge/purge control system for air dryer having limited charge time
Inventor: CRAMER KENNETH LON
IPC: B01D53/26
Filed: 1990-06-26
Granted: 2000-06-06
Abstract: A compressed air system (10) includes an electronic control (38) which controls enabling an disabling of the compressor (12) in response to pressure level variations in the system storage reservoir (24). The control unit responds to compressor disabling by causing the system air dryer (26) to regenerate or purge for a predetermined time period. The timing period of a charge timer (80) is initiated when the compressor is enabled. When the charge timer has timed out; the compressor is disabled and the air dryer purged for the predetermined time period.
Patent CA-2076100-C (CA)
Title: Low noise fan assembly
Inventor: GLIEBE PHILIP ROGER
IPC: F02C7/045
Filed: 1992-08-13
Granted: 2001-12-18
Abstract: A gas turbine engine rotor assembly such as a fan or compressor includes a plurality of rotor blades spaced axially from a plurality of stator vanes inside an annular duct. The number of vanes is selected for a predetermined number of blades for obtaining substantially equal values of a cut-off ratio for at least two blade passing frequency harmonics for reducing spinning mode noise from the duct.
Patent CA-2076280-C (CA)
Title: Protected optical fiber package
Inventor: HEYDA ROBERT JEROME
IPC: B65D85/66
Filed: 1992-08-17
Granted: 1998-10-27
Abstract: A protected package of optical fiber includes a spool which includes a hub and two spaced flanges. Optical fiber is wound on the hub with an end of the fiber being accessible to allow the fiber to be tested. A strip of plastic material is wrapped about the spool with longitudinal edge portions of the strip overhanging the flanges to provide a cover. The protected package permits withdrawal of the fiber through a gap between the cover and the flanges. Further, in a preferred embodiment, each longitudinal edge portion is provided with openings. The openings are spaced apart such that when a strip is wrapped about any of expected size spools, at least one pair of the openings will become aligned to allow insertion of a fastener which functions to hold the strip assembled to the spool to protect the fiber and to prevent unintended removal of the cover.
Patent CA-2076954-C (CA)
Title: Bath seat
Inventor: BERNSTEIN MICHAEL S
IPC: A47K3/12
Filed: 1990-06-20
Granted: 2000-10-03
Abstract: A generally circular bath seat (1) providing back support (46) and positionable (8, 10, 12) rotationally (4, 6) in a bath tub with mews for selectively securing (84) the relative seat position.
Patent CA-2080531-C (CA)
Title: Method of protecting computer software from unauthorized execution using multiple keys
Inventor: CHOU WAYNE W
IPC: G06F21/00
Filed: 1992-10-14
Granted: 1996-06-18
Abstract: A method of protecting computer software is provided by storing a first key in a plug-in hardware device, storing an algorithm for processing a purality of keys including the first key in software to be protected, loading the software containing the algorithm in the computer and plugging in a hardware device in a communications port of the computer.  A second key, external to the software, to be protected which bears a relationship to the first key by the algorithm is loaded into the computer where processing takes place of the first and second keys in the algorithm for deriving a control key, if present, for the continued processing of the software being protected.  The step of loading the second key is performed using a computer keyboard, any input/output port, a hard disk file or any other method of entry in the computer.  Additional keys external to the software which bear a relationship to the first and second keys configured in the algorithm may be provided.
Patent CA-2093725-C (CA)
Inventor: DIAN JEAN-RAOUL
IPC: B07C3/02
Filed: 1993-04-08
Granted: 1996-11-19
Abstract: L'invention concerne une installation de tri d'objets, notamment de lettres, ayant des destinations différentes. L'installation comprend n machines de tri (Mi) reliées à un convoyeur commun. Chaque machine comporte des cases associées à pi des N destinations possibles. Les objets introduits à l'entrée de la machine (M1) et ne correspondant pas à une des pi destinations sont dirigés vers les zones de stockage (M'2 à M'5), chaque zone correspondant aux destinations associées aux n-1 autres machines de tri (M2 à M5) vers lesquelles les objets sont périodiquement transférés.
Patent CA-2098680-C (CA)
Title: Microprocessor-based controller
Inventor: HOGLUND STEVEN ROBERT
IPC: F25B27/00
Filed: 1993-06-17
Granted: 1998-09-22
Abstract: A controller for a gas heat pump system wherein the controller has a variable capacity control capability that responds to thermostat output signals.  The variable capacity controller computes real-time performance parameters at variable capacity heating/cooling load conditions of the gas heat pump system.  A defrost controller calculates a maximum heat pump operating time period between successive defrost cycles and a minimum heat pump operating time period of each defrost cycle, during a heating mode of the gas heat pump.  Such values are calculated as a function of sensed time, temperature and variable capacity operating conditions which are calculated by the variable capacity controller.  The controller preferably has a manual mode for verifying correct operation of each actuator of the gas heat pump system, as a function of a sequenced input signal, while the gas heat pump system is in a shutdown mode.  The manual mode control also computes and generates an output signal for controlling each actuator to achieve efficient operation control of the gas heat pump system in various operational states, based upon predetermined operating parameters.
Patent CA-2107775-C (CA)
Inventor: SLATER JACK
IPC: E04C3/08
Filed: 1992-04-06
Granted: 2000-06-20
Abstract: On décrit une âme auto-montable (44) conçue pour fixer deux membrures (42) afin de former une poutre (40). Il existe différentes tailles d'âme pour l'assemblage de poutres de profondeurs différentes. Une âme comprend plusieurs trous pour des vis de centrage permettant de fixer l'âme à une paire de membrures parallèles l'une à l'autre. Des membrures ayant la même section extérieure mais de largeurs différentes sont utilisées pour réaliser des poutres de résistances différentes. Des poutres assemblées sont utilisées dans le cadre d'une structure de bâtiment, par exemple un mur, un plancher ou un plafond. Un système est prévu de manière qu'un architecte puisse déterminer, en fonction des forces appliquées par le vent (flexion) et des charges axiales devant être supportées par la structure, l'espacement et la profondeur des poutres requises pour que la structure puisse supporter les charges. Les poutres sont alors assemblées pour satisfaire les exigences spécifiées selon une série d'instructions standards qui précisent l'épaisseur de l'acier des membrures, les dimensions de l'âme, le nombre et l'espacement des âmes dans le sens longitudinal le long de l'âme, et le nombre et les emplacements des vis utilisées pour fixer chaque âme à une paire de membrures.
Patent CA-2117487-C (CA)
Title: Biplanar deflectable catheter for arrhythmogenic tissue ablation
Inventor: AVITALL BOAZ
IPC: A61N1/05
Filed: 1993-02-11
Granted: 1996-04-30
Abstract: A vascular catheter has a highly flexible distal section (14). A biplanar control sys-tem (10, 28) is provided for enabling and controlling the movement of the distal catheter section (14) and tip (42) in any direction in a manner such that the distal tip (42) is cap-able of accessing any point on the wall of the chamber entered. Dual-wire biplanar con-trol system embodiments include a vertical deflection control wire (62) operable to deflect the distal tip (42) of the catheter in a controlled manner in a vertical plane substantially parallel to the longitudinal axis of the tubular catheter and a lateral deflection control wire (64) operable to deflect the distal tip (42) of the catheter in a controlled manner in a lateral plane substantially perpendicular to the longitudinal axis of the tubular catheter. A one-wire system for both vertical and lateral control is also described.
Patent CA-2119654-C (CA)
Inventor: TOURNIER HERVE
IPC: A61K49/00
Filed: 1993-07-30
Granted: 2001-02-06
Abstract: Magnetite particles suitable for injection into the blood stream of patients having enhanced resistance against agglomeration and uptake by the RES of the liver and spleen.      The particles essentially consist of an iron oxide core and a phosphoric acid mono alkyl or alkenyl ester or glycerophospholipid/surfactant three-dimentional shell surrounding the core. The core and the monoester or a micellar glycerophospholipid form an urchin-like structure which is further interlaced or interwined with a non-ionic surfactant to produce a protective three-dimensional shell which renders particles almost undetectable by the macrophages. Particles prepared according to the invention are kept in the blood circulation for long periods and represent excellent long lasting blood pool agents. Key components in the shell are (a) a polybasic mineral-organic species such as glycero phosphatidic acid in micellar form and (b) a block copolymer having successive hydrophilic and hydrophobic segments.