baber/WOPTO huggingface dataset:
Patent CA-2027334-C (CA)
Title: Method for communicating among a plurality of programmable logic controllers
Inventor: SEXTON DANIEL WHITE
IPC: G05B19/05
Filed: 1990-10-11
Granted: 2000-06-20
Abstract: A method is provided for communicating among a plurality of programmable logic controllers (PLC's) coupled together on a common bus. A master PLC and a plurality of slave PLC's are coupled to the bus. An attach signal is transmitted by the master PLC to address and select the particular slave PLC to which the master PLC desires to transmit a message. The master PLC then transmits a mailbox signal including data and message length information regarding a next message if not all data from the master PLC and intended for the slave PLC could fit in the mailbox message. Additional next messages, each including data and next message length information, are sent by the master PLC to the selected slave PLC as necessary until all of the data intended for the selected slave PLC is transmitted by the master PLC. This communication method permits the data in the mailbox message and the data in any next messages to be transferred directly from the bus to a memory within the slave PLC via a direct memory access (DMA) controller in the slave PLC without the intervention of a CPU in the slave PLC. Since non-selected slave PLC's receive next message length information, such non-selected slave PLC's are substantially free to perform other activities for those periods of time they know will be consumed by next messages.
Patent CA-2035066-C (CA)
Title: Gas spring
Inventor: HOLLEY DAVID M
IPC: F16J15/32
Filed: 1991-01-28
Granted: 1999-04-06
Abstract: A gas spring which provides two stages of resistance to axial movement, by a first head and rod slidably disposed within a second rod with a head, with both of the heads subjected to pressurized gas in a common chamber within the cylinder.          Preferably, a seal for each provides sealing engagement when the force of pressurized gas acts upon the seal.  Hence, the seal  provides  sealing  engagement  without  being  axially compressed and radially expanded.   The seal may be used in single stage and two stage gas springs.  Desirably, a positive stop for each rod is provided, preferably as a part of the housing for its bearings and seal.         Preferably, the seal is a flexible annular sealing element which when viewed in cross section is generally a C-shape, with arms constructed and arranged so that the free edges of the seal are biased into sealing engagement by pressurized gas acting on the arms.
Patent CA-2035540-C (CA)
Title: Concrete barriers
Inventor: LOGSDON DUANE D
IPC: E04G15/06
Filed: 1991-02-01
Granted: 1995-02-28
Abstract: Concrete barrier structures for use in forming holes in concrete slabs or the like can be constructed so as to include a peripheral wall shaped as the frustum of a right circular cone having an upper end and a lower end. a closure is provided to close off the upper end of the peripheral wall. A series of equally spaced, identical upper supports are located on the exterior of this peripheral wall intermediate the ends of this wall. Grooves are provided on the interior of the peripheral wall for accommodating the upper supports on an adjacent, nested barrier structure. Depending upon the depth or thickness of a slab only one of such a barrier structure may be used with its lower end of a horizontal surface when the slab is cast in place or two or more of the barrier structures may be placed on one another with any two adjacent barrier structures located with the uppermost barrier structure either resting on the upper supports of the next lower barrier structure in an upper position or being located with such supports on the lowermost barrier structure fitting into the grooves on the uppermost barrier structure in a lower position.
Patent CA-2036042-C (CA)
Title: Cooling arrangement for valve stem gates in hot runner injection molding machine systems
Inventor: LABIANCA VINCENT S
IPC: B29C45/73
Filed: 1991-02-08
Granted: 1994-11-01
Abstract: Injection molding machine hot runner systems with gate bushing cooling capabilities.
Patent CA-2045056-C (CA)
Title: Pre-school stencil kit
Inventor: SLAYTON NANCY D
IPC: A63H33/00
Filed: 1991-06-20
Granted: 1995-02-07
Abstract: ABSTRACT OF THE DISCLOSURE         A stencil kit including a case, a drawing panel releasably mountable to said case in the manner of a cover, and multiple stencils selectively mounted to drawing surfaces formed on opposite faces of the drawing panel.  The drawing panel includes an integral handle, which, upon a mounting of the drawing panel to the case, provides a handle for the entire kit.  Interengaging lugs and a latch and keeper assembly provide for releasable joinder of the drawing panel to the case.  Positioning flanges, projections and recesses about each drawing surface and on the associated stencils releasably position the stencils for use.
Patent CA-2045709-C (CA)
Title: Herbicidal composition
Inventor: HEYLINGS JONATHAN ROY
IPC: A01P13/00
Filed: 1991-06-26
Granted: 2001-12-25
Abstract: A herbicidal composition, comprising preferably an aqueous solution of a salt of paraquat or diquat, or a mixture thereof, in admixture with a gelling agent that will gel at the pH of human gastric juice, (e. g. magnesium silicate), and further comprising (1) an emetic, (e.g. a triazolopyrimidine emetic) or (2) a purgative (e. g. magnesium sulphate), or (3) both an emetic and a purgative.      In the event of ingestion of the composition, these additives act synergistically to reduce absorption of bipyridylium compound from the gastrointestinal tract into the bloodstream, and thereby reduce the oral toxicity of the composition.
Patent CA-2046790-C (CA)
Inventor: STORY CHRISTOPHER ALAN
IPC: H01B11/18
Filed: 1991-07-11
Granted: 1995-10-31
Abstract: A method and apparatus for providing a talk path in a longitudinal cavity of an enhanced crush, impact, and cut-through resistant communications cable. The talk path is especially suited for a fiber optic communications cable.  The cable jacket is formed of a deformable material having a plurality of longitudinal cavities spaced about the cable core.  A longitudinal cavity may contain a copper pair or optical fiber to serve as a talk path during servicing of the cable. The talk path may be readily accessed by a service technician without exposing the inner core of the communications cable.
Patent CA-2052970-C (CA)
Inventor: NAKAMURA TAKAO
IPC: H01L39/14
Filed: 1991-10-08
Granted: 1996-07-02
Abstract: A superconducting device comprises a superconducting channel constituted of an oxide superconductor thin film formed on a substrate, a superconductor source electrode and a superconductor drain electrode formed at opposite ends of the superconducting channel, so that a superconducting current can flow through the superconducting channel between the source electrode and the drain electrode. A gate electrode is located through an insulating layer on the superconducting channel so as to control the superconducting current flowing through the superconducting channel. The oxide superconductor thin film of the superconducting channel is formed of a c-axis oriented oxide superconductor crystal, and the oxide superconductor thin film of the superconductor source electrode and the superconductor drain electrode are formed of .alpha.-axis oriented oxide superconductor crystal. The superconducting channel is continuous to the superconductor source electrode and the superconductor drain electrode.
Patent CA-2059165-C (CA)
Title: Apparatus for co-extruding two food products
Inventor: BEAVERS CHARLES T
IPC: A23P1/12
Filed: 1992-01-10
Granted: 1997-04-29
Abstract: An apparatus for co-extruding inner and outer bulk food products into a tubular product, such as a tamale. The device has an inner housing mounted concentrically in the outer housing.   A piston locates in the inner housing.  An  annular  piston  locates  in  the  outer housing in a clearance between the outer housing and the inner housing.   An actuator will push the piston simultaneously forward.   Outlet ports on the forward end of each housing cause the two food products to co-extrude as a composite product.
Patent CA-2060009-C (CA)
Title: Targeting device for an implant to be used for fractures in particular in trochanteric or subtrochanteric fractures
Inventor: BEHRENS KLAUS F A
IPC: A61B17/17
Filed: 1992-01-28
Granted: 1998-02-03
Abstract: A targeting device for an implant to be used for fractures preferably for trochantoric or subtrochantoric fractures, comprises a head having a projection to retain a femur nail to be inserted in the medulla canal of a femur.  Locking means releasably fasten the femur nail to the projection, and a targeting arm laterally attached to the head extends parallel to a nail attached to said head and has at least one targeting bore for inserting a drill sleeve.  Each targeting bore can be aligned to a proximal sloped bore or, respectively, to a distal transverse bore of the femur nail.  The targeting arm is preferably fixed to the head has a plurality of targeting bores extending under different angles with respect to the axis of the arm, to allow using femur nails having different angular bores.
Patent CA-2068824-C (CA)
Title: Aqueous dispersions of sulfonylurea derivatives
Inventor: FRISCH GERHARD
IPC: A01N47/36
Filed: 1992-05-15
Granted: 2002-12-24
Abstract: Herbicidal active substances from the sulfonylurea series were hitherto mainly formulated as WPs or WGs. The invention relates to novel, storage-stable aqueous suspensions of these active substances, comprising a polyacrylic acid derivative, to processes for their preparation, and to their use in crop protection.
Patent CA-2070037-C (CA)
Inventor: HARMER ROLAND G
IPC: B29C45/16
Filed: 1992-05-29
Granted: 2002-03-26
Abstract: A molded plastic garment hanger constituted from two materials which are fused and mechanically bonded to form a composite hanger. Also disclosed is a method and apparatus for the two-step or co-injection molding of plastic materials for the formation of the plastic garment hanger construction.      The plastic garment hanger incorporates an insert consisting of a second plastic material adapted to have indicia, logo or non-slip means molded therein, and which insert may be fused to the hanger structure so as to form a mechanical bond with the first plastic material constituting the basin garment hanger.
Patent CA-2070284-C (CA)
Title: Convertible structural element
Inventor: BRINGOLF SERGE ALAIN
IPC: F16G13/20
Filed: 1991-10-04
Granted: 2002-09-17
Abstract: A structural element is disclosed which is substantially composed of a linked chain and of a flexible connection which can be a chain of identical links and which can be assembled together as required to form a rigid beam. The linked chain comprises opposing support points, the first support point of one link of row n of the chain cooperating with the second support point of a link of row n-1 to contain, while the element is being rendered rigid, hooking elements integral with theflexible connection and which, in the preferred embodiment of the invention, are the pins of the second chain. The structural element can be assembled or disassembled using a special device.
Patent CA-2076282-C (CA)
Title: Process for the activation of a catalyst
Inventor: EILERS JACOBUS
IPC: B01J37/18
Filed: 1992-08-18
Granted: 2003-07-01
Abstract: A Fischer-Tropsch catalyst is activated by a process comprising reducing the catalyst by contact with a hydrogen-containing gas, the hydrogen concentration and the space velocity of the gas contacting the catalyst increasing step-wise or continuously during the activation. The process may be employed to activate a fresh catalyst prior to its use or to regenerate an exhausted or partially exhausted catalyst. The catalyst, once activated, may be used in a process for the preparation of hydrocarbons from carbon monoxide and hydrogen.
Patent CA-2078363-C (CA)
Title: Printer with automatic cutter
Inventor: IGUCHI KESAYOSHI
IPC: B41J11/42
Filed: 1992-09-16
Granted: 1997-03-04
Abstract: A printer with an automatic cutter, at the time when a printer power source is turned on, judges from the ON/OFF states of two keys, i.e. a paper feed key and a condition setting key, whether a selected mode is an automatic cutter test mode, a printing test mode, or a normal printing mode, and then effects a necessary processing in accordance with such selected mode.      According to this processing, the test of the automatic cutter can be conducted using only the printer, that is, without the use of any special device and parts.
Patent CA-2078372-C (CA)
Title: Home agent telecommunication technique
Inventor: CONN GERARD
IPC: H04Q3/00
Filed: 1992-09-16
Granted: 1997-04-08
Abstract: An agent at home (12) is enabled to receive a call from a customer (14), originally directed to a transaction-processing center (16), by first identifying, at an exchange (20) of a public switched telephone network (22), the identity of the transaction-processing center and the agent(s) designated to receive calls directed to that center. Once the agent (12) has been identified, the call is routed from a first local exchange carrier central office (18) serving the customer to a local exchange carrier central office (26) serving the agent and then to the agent across a combined voice and data line (44). Upon receipt of the call, the agent simultaneously establishes a data link with the transaction-processing center so as to complete a transaction for the customer.
Patent CA-2078549-C (CA)
Inventor: WUCHERPFENNING KAI W
IPC: A61K38/095
Filed: 1991-03-29
Granted: 2006-07-11
Abstract: This invention is directed to therapeutic agents comprising peptides in turn comprising a portion of the T-cell manifested in multiple sclerosis. Embodiments of the invention include peptides, vaccines, receptors and entire (attenuated) T-cells. This invention is also directed to methods using the foregoing agents to suppress immune response against myelin basic protein, and/or to suppress T-cells that recognize an immunodominant epitope of human myelin basic protein. Additionally, this invention is directed to diagnostic methods and kits for diagnosing multiple sclerosis.
Patent CA-2079508-C (CA)
Title: Method and apparatus for rendering waste substances harmless
Inventor: RITTER ROBERT A
IPC: C02F11/06
Filed: 1992-09-30
Granted: 1998-05-05
Abstract: A method and apparatus are provided for the treatment of hydrocarbon-contaminated soil by chemical hydrolysis and/or oxidation of the hydrocarbons in the hydrocarbon-contaminated soil. The method includes conditioning lime with a particularly-specified fatty-acid activator. The conditioned lime is blended with physically-preconditioned, moist, hydrocarbon-contaminated soil, the degree of blending being at least near microscopic level. A charge of the blended lime/soil is conveyed to an enclosed reaction vessel, where hydration of the lime is carried out. The heat of the hydration reaction is retained within the vessel, so that hydrolysis of the fatty acid conditioner and/or hydrocarbon contaminants in the soil is effected. Air or oxygen-enriched air is substantially-simultaneously introduced into the reaction vessel together with steam and/or water as required by the chemical reactions, thereby to effect a flameless, intermediate-temperature oxidation of the hydrocarbons and their hydrolysed degradation products. Decontaminated soil product is discharged from the reaction vessel by passing the decontaminated soil product, in dry, dusty, hydrophobic form, through a treating zone where it is sprayed with a surfactant. The surfactant-treated solid is passed to a blender where it is mixed with sufficient water to provide a substantially dust-free decontaminated soil product.
Patent CA-2082243-C (CA)
Title: Contrast beam current limiting arrangement with secondary brightness beam current limiting provisions
Inventor: LAGONI WILLIAM ADAMSON
IPC: H04N5/59
Filed: 1992-11-05
Granted: 1999-08-03
Abstract: A television system includes a picture tube beam current limiting arrangement which operates to reduce image contrast without affecting image brightness when the beam current exceeds a first threshold. However, if the user brightness control setting exceed the nominal (midrange) brightness control level, the image brightness is reduced when the beam current exceeds a second threshold which may be equal to or greater than the first. The image brightness is reduced only until the image brightness is within a small margin of the nominal image brightness level. Any further beam current limiting, for example to account for abnormal operating conditions of the television system, is accomplished by further brightness reductions.
Patent CA-2083781-C (CA)
Inventor: LAFORTUNE ALAIN GERARD
IPC: B64C27/72
Filed: 1992-11-25
Granted: 1996-12-24
Abstract: L' invention concerne un dispositif à vulnérabilité réduite pour la manoeuvre d'un rotor sustentateur et propulseur d'hélicoptère, par l'intermédiaire d'un mécanisme à plateaux cycliques, dont le plateau non tournant (5) est attelé en quatre points (1, 2, 3, 4) à quatre servocommandes hydrauligues d'actionnement comportant chacune un vérin de puissance (9), un système d'ancrage (10) et un servodistributeur (41, 42), trois des servocommandes étant utilisées en fonctionnement normal, la quatrième étant utilisée en secours en cas de défaillance d'une des trois autres. Chaque vérin de puissance (9) est alimenté par un circuit hydraulique indépendant qui comprend le servodistributeur (41, 42) manoeuvré par une entrée mécanique, relié au poste de pilotage par une timonerie (13), et il comporte un système d'ancrage débrayable. Chacune des entrées mécaniques comporte un système qui, au-dessus d'un seuil d'effort sur un servodistributeur normalement actif, le neutralise, ce qui entraîne la mise en fonctionnement du servodistributeur normalement inactif, qui devient opérationnel en fonctionnement de sauvegarde.
Patent CA-2087071-C (CA)
Title: Mattress base assembly kit
Inventor: SCHERMEL WILLIAM
IPC: A47C19/00
Filed: 1993-01-11
Granted: 1997-01-14
Abstract: A kit for assembly of a mattress supporting base comprising:  a frame having a top mattress supporting platform, the platform being supported by a plurality of spaced apart longitudinal stringers, each stringer having a series of longitudinally spaced apart openings, the openings being transversely aligned thus defining a series of continuous passageways through said stringers across the assembled width of the frame, each frame comprising a longitudinal outside edge member, along an outside edge of each frame remote from said inside edge, the outside edge member having a series of longitudinally spaced apart inwardly open sockets, each socket being transversely aligned with an associated one of said passageways and engageable with an extreme end of an associated beam; a plurality of transverse beams each engageable in an associated one of said passageways; and a plurality of leg means, downwardly protruding from each of said beams.
Patent CA-2088256-C (CA)
Title: Process for producing low molecular weight isoolefin polymers
Inventor: WHITE DONALD A
IPC: C08F8/50
Filed: 1991-08-19
Granted: 2002-12-17
Abstract: A kit of components to be manufactured by a cigarette manufacturer for assembly of a filtered, smokable cigarette by a consumer comprises lengthy tobacco rods wrapped in a consumable wrapper, individual filters and tipping papers. The tipping papers are provided on a flat sheet and may be removed from the sheet one at a time for use. To assemble the smokable cigarette the wrapped rod is cut into desired lengths. One of the desired lengths is then placed adjacent a filter and the tipping is wrapped about the filter and the severed tobacco rod to provide the finished cigarette.        A first assembly device to assist in the assembly of the kit components by the smoker comprises a trough with a depression adapted to receive the tobacco rod. A transverse slot assists in severing the rod into the desired lengths. For the assembly process a tipping paper is placed in guide means above the trough. A tobacco filter is laid over the tipping means and then a severed tobacco rod is placed adjacent the filter. The filter and tobacco rod are pressed down into the trough to partially wrap the tipping paper around the circumference and the tipping paper is then wrapped around the remainder of the circumference of the filter and a portion of the severed rod.     A more sophisticated assembly device comprises a housing with a central bore and a rotating member which may be rotated within the bore of the housing. For assembly a filter and a severed tobacco rod are loaded into the annular gap between the bore of the housing and the rotating member. A tipping paper then fed by guide means through the wall of the housing to contact the filter and a portion of the severed rod. Rotation of the rotating member within the housing causes opposite of the filter and tobacco rod to draw the tipping paper into the housing and to wrap the tipping paper about the filter and tobacco rod. The housing has a slot to discharge the completed cigarette from the housing.
Patent CA-2088613-C (CA)
Inventor: MAHURKAR SAKHARAM D
IPC: A61M25/00
Filed: 1993-02-02
Granted: 1996-06-04
Abstract: A multiple-lumen catheter (10) comprises an elongated cylindrical tube (11) which has an internal diametral septum (12) extending along the length thereof. This septum (12) and the walls of the tube form at least three longitudinal lumens (13, 14, 15) . The first and second lumens (13, 14) have substantially semi-circular transverse cross-sections which occupy the major portion of the transverse cross-section of the interior of the tube (11). A third lumen (15) has a small transverse cross-section and is located at the intersection of one diametral end of the septum (12) with the tube (11). This third lumen (15) lies between a pair of adjacent corners of the first and second lumens (13, 14).
Patent CA-2089735-C (CA)
Title: Ryegrass pollen allergen
Inventor: SINGH MOHAN BIR
IPC: C07K16/16
Filed: 1991-08-16
Granted: 2008-03-18
Abstract: The present invention provides a nucleic acid sequences coding for the ryegrass pollen allergens Lol pIa and Lol pIb, puri-fied Lol pIa and Lol pIb protein and fragments thereof, methods of producing recombinant Lol pIa and Lol pIb or at least one fragment thereof or derivative or homologue thereof, and methods of using the nucleic acid sequences, proteins and peptides of the invention.
Patent CA-2090190-C (CA)
Title: Segmented light curtain system and method
Inventor: ANDERSON E PETER
IPC: G01V8/20
Filed: 1993-02-23
Granted: 2000-08-22
Abstract: A light curtain system for sensing the intrusion of objects into detection planes which define a protected zone. A plurality of light curtain segments are provided with each segment including spaced-apart transmitter and receiver heads. The transmitter and receiver heads are each connected in series by flexible cables which form a part of a control circuit. The series-connected segments permit the detection planes to be aligned in predetermined angular orientations as required by the particular application.