baber/WOPTO huggingface dataset:
Patent CA-2251298-A1 (CA)
Title: Energy absorbing barrier system
Inventor: NELSON CHARLES B
IPC: E01F9/669
Filed: 1998-10-22
Abstract: An  energy  absorbing  barrier  system  comprises  a plurality of composite concrete barriers, each barrier including a reinforced concrete section having a back wall  upon  a  support  base.    The  support  base  is connected to a concrete veneer face section having an upper portion and a lower portion.  The face section forwardly slopes from the support base to form an obtuse angle therewith such that the upper portion of the face section extends at least partially over the lower portion of the face section.  The back wall and the face section defines an intermediate center core section therebetween consisting of a light density crushable material.   The connection of the concrete veneer face section to the support base has a sheer point that facilitates the collapsing in of the face into the intermediate core section.
Patent CA-2251908-A1 (CA)
Title: Disposable absorbent article comprising expandable fibres and being capable of self-shaping in use
Inventor: MARINELLI LUIGI
IPC: A61F13/15
Filed: 1997-04-28
Abstract: This invention is a substantially flat disposable absorbent article (20) for wearing adjacent a body discharge area having a longitudinal centerline (0-0), and a lateral centerline (A-A) orthogonal thereto, and defining longitudinal and lateral directions respectively. The disposable absorbent article (20) includes a liquid pervious top sheet (24), a back sheet (26) joined to the top sheet, and an absorbent core (28) intermediate the back sheet and the top sheet. The absorbent core (28) includes a layer of compressed, cellulose based, linear fibers (46) for expanding the article into a tridimensional structure while being worn by a user. The layer (46) of compressed, cellulose based, linear fibers is activated by body fluids.
Patent CA-2254040-A1 (CA)
Title: Retractable core barrel valving apparatus
Inventor: MORIN DANIEL H
IPC: E21B25/02
Filed: 1998-11-13
Abstract: The drilling apparatus includes a wire line core barrel having a head assembly and a drilling tool connected to the head assembly. The head assembly includes a latch body with a landing shoulder seatable on the drill string landing ring, latches seatable in a drill string latch seat and a fluid bypass channel for bypassing from one axial side of the landing shoulder to the other, a bushing in the bypass channel, a valve member movable in the channel from an axial outer bypass channel open position and an axial inner second position extending into the bushing for one of blocking axial inward fluid flow through the bushing and restricting inward flow through the bushing. A spring is provided in the bore inwardly of the bushing for abutting against the valve member in its second position to urge the valve member axially outwardly. A latch retractor is mounted to the latch body for movement relative thereto between a latch seated position and a latch retracted position for retracting the latch body through the drill string and valving mechanism connected to the latch retractor for moving the valve member in the fluid channel to the valve member outer open position. An overshot coupling device retracts the latch retractor and thereby retracts the latches and pulls the ball portion outwardly of the bushing to decrease resistance to drilling fluid flow inwardly through the bushing.
Patent CA-2254245-A1 (CA)
Inventor: GOTTZMANN CHRISTIAN FRIEDRICH
IPC: C10J3/00
Filed: 1998-11-17
Abstract: A process for producing a gas stream containing oxygen and steam to feed a coal gasifier or other downstream process by compressing and heating a feed gas stream, and separating the heated feed gas stream into an oxygen-depleted gas stream on a retentate side of an ion transport membrane and an oxygen-containing gas stream on a permeate side.  The permeate side is purged with a purge gas stream containing steam to produce a gas stream containing oxygen and steam, and at least a portion of the gas stream containing oxygen and steam is fed to the coal gasifier after blending with a pure oxygen stream recovered from the remaining portion of the purge stream or by a parallel nonpurged ion transport separator in the system to achieve the appropriate steam-to-oxygen ratio for the downstream process.
Patent CA-2255170-A1 (CA)
Inventor: LIVINGSTON PETER M
IPC: G01S3/782
Filed: 1998-12-02
Abstract: A high contrast imaging system (10) having an adaptive focal plane (52). The system (10) includes receiver optics (32) that receive radiation (30) from both a detected target (16) and a laser beam (14) incident thereon, and a polarizing beam splitter (44) that splits the radiation into a first beam of reflected laser radiation and a second beam of radiation (46). The polarizing beam splitter (44) linearly polarizes the second beam of detected target radiation (46). A beam polarizer (48) circularly polarizes the second beam of detected target radiation (46). An adaptive focal plane or micromirror array (52) reflects the circularly polarized detected target radiation back through the beam polarizer (48) to linearly polarize the reflected, second beam of radiation (46). A detector array (56) detects the reflected, second beam of radiation (62) and outputs a signal to tracker electronics (22) in accordance with the intensity of radiation. Tracker electronics (22) adjust the reflectivity of the micromirror array (52) to ensure that the radiation incident on the detector array (56) is at or below a predetermined threshold.
Patent CA-2255273-A1 (CA)
Title: Blind-taper hole saw
Inventor: WISE MICHAEL A
IPC: B23B51/04
Filed: 1998-12-02
Abstract: A rotary tool for forming a blind-tapered hole in a workpiece includes an elongate shaft having a bit shank on one end and a base plate secured to the other end.   A collar, mounted for axial movement on the shaft, is biased away from the base plate to a first position on the shaft by a return spring. At  least two cutting blades are pivotally attached to the collar.   A portion of the length of each cutting blade is fixedly circumferentially and radially supported relative to the shaft by a blade guide that rotates with the shaft such that the angle  formed  between  each  cutting  blade  and  the  shaft's rotational axis increases with increasing axial displacement of the collar on the shaft away from the first position.
Patent CA-2257894-A1 (CA)
Title: Adjustable steering axle, trailer, and method for operating a trailer
Inventor: ZIENTARA JOHN
IPC: B62D17/00
Filed: 1997-06-24
Abstract: An adjustable steering axle includes an outer axle (12) having an exterior surface and an inner cylindrical surface (33). The inner axle (14) has an outer cylindrical surface, a first kingpin receiving tube (50) provided at a first end of the inner axle and a second kingpin receiving tube (51) at a second end of the inner axle. The inner axle is rotatably received within the cylindrical surface of the outer axle. A first kingpin (72) extends through the first kingpin receiving tube (50), and a second kingpin (73) extends through a second kingpin receiving tube (51). A first spindle (16) is rotatably mounted about the first kingpin (72), and a second spindle (18) is rotatably mounted about the second kingpin (73). A caster change pin (70) is attached to the inner axle and provides rotation of the inner axle (14) relative to the outer axle (12). The adjustable steering axle is desirably used on semi trailers.
Patent CA-2258179-A1 (CA)
Inventor: JOHNSON RICHARD ARTHUR
IPC: H01F38/30
Filed: 1999-01-08
Abstract: An electronic trip unit for a circuit breaker having two current sensors per phase, wherein the first magnetic core current transformer is designed to monitor current in the normal and overcurrent range, and the second low-permeability core sensor is designed to produce an override trip signal at or below the short time withstand current rating of the circuit breaker. In a second embodiment the electronic trip unit includes only the low-permeability core sensor that has negligible output in the normal current range.
Patent CA-2259396-A1 (CA)
Title: Fuel-cell power generating system
Inventor: HASHIMOTO NOBORU
IPC: H01M8/06
Filed: 1997-07-02
Abstract: The present invention is directed to a portable power generating system that can be operated by using a portable pressure canister containing a liquefied butane fuel gas. In the power generating system, a part of the butane gas contained in the pressure canister is used as a fuel gas and remainder of the butane gas is used to prepare a reformed gas containing hydrogen gas by reaction with water. The hydrogen gas in the reformed gas and oxygen gas in air are used in a fuel cell to generate electric power. The power generating system is characterized in a compact portable one which further comprises a device for regulating the amount of the butane gas discharged from said pressure canister and a device for controlling a flow rate of the butane gas, installed in feed lines of supplying the butane gas from said pressure canister to said reforming device.
Patent CA-2260459-A1 (CA)
Title: Improved earth-boring bits
Inventor: SLAUGHTER ROBERT
IPC: B23B/
Filed: 1999-01-27
Abstract: Improved formulations of tungsten carbide have been disclosed. The improved tungsten carbide formulations typically include large tungsten carbide (WC) grains in a lower cobalt content binder matrix. The improved formulations are suitable for gage inserts and inner row insert in rock bits and earthen cutters. Drill bits incorporating these tungsten carbide inserts have better performance and longer lifetime because the improved tungsten carbide formulations result in reduced thermal fatigue and still maintain required toughness and wear resistance.
Patent CA-2265454-A1 (CA)
Inventor: HOLM ARNE
IPC: A61K47/48
Filed: 1997-09-09
Abstract: Peptide prodrugs of the general formula (I): X-L-Z, wherein X designates a pharmaceutically active peptide sequence, e.g. Leu-enkephalin; Z designates a peptide pre-sequence of 2 to 20 amino acid units, preferably comprising lysine and glutamic acid; and L is a linking group comprising from 3 to 9 backbone atoms, wherein the bond between the C-terminal carbonyl of X and L is different from a C-N amide bond. Preferably, the bond between X and L is an ester bond. It has been found that it is possible to obtain a remarkable increase in the resistance towards degradation by proteolytic enzymes such as carboxypeptidase A, pepsin A, leucine aminopeptidase, .alpha.-chymotrypsin when masking a pharmaceutically active peptide as a prodrug of the formula (I). The prodrugs of formula (I) are cleaved by the blood plasma enzyme butyryl cholinesterase indicating a readily bioreversibility. It is believed that the stability towards enzymatic cleavage is due to an induced helix-like structure.
Patent CA-2265732-A1 (CA)
Title: Syringe
Inventor: HANSEN STEFFEN
IPC: A61M5/315
Filed: 1997-09-10
Abstract: A syringe comprising a housing (1), a dose setting mechanism in the housing, an injection button (6), and a needle receiving member. By this syringe doses of a medicine can be set by the dose setting mechanism and by operating the injection button (6) the set dose can be pressed out from an ampoule accommodated in the housing (1) through a needle (5) mounted on the needle receiving member. The housing further comprises an accessible compartment covered by a lid (10) or a cap (8) in which compartment accessories (11) are stored.
Patent CA-2266993-A1 (CA)
Title: Standard footprint and form factor rj-45 connector with integrated signal conditioning for high speed networks
Inventor: KUNZ WILLIAM E
IPC: H01R13/6594
Filed: 1999-03-25
Abstract: A two-row, eight-port modular connector comprises a lower row with a four-bay insulative housing that accepts four RJ-45 style jacks from its front, and a short-height gang of four separate molded inserts from the opposite side.      The four-bay insulative housing and each molded insert are essentially the same as a standalone four-port, single-row modular connector so that the single-row modular connector can be quickly and easily converted to the eight-port, two-row modular connector. Such a conversion would include an upper row four-bay insulative housing that also accepts four RJ-45 style jacks from its front and a tall gang of four molded inserts that have forward extensions of their spring contacts so they can reach from behind far enough forward over the lower first row. A three-piece Faraday shield comprises a lower middle part that covers the rear of each of the four first-row lower-row molded inserts, an aft part that covers the rear of each of the four upper-row molded inserts, and a forward part that covers the front and sides of both the four-bay insulative housings and part of the top of the housing. After assembly, the three Faraday shield pieces are electrically connected so that they constitute a continuous shield around the whole of the eight-port, two-row modular connector. Each molded insert includes a signal conditioning circuit that provides a proper electrical coupling between a physical interface device (PHY) or encoder/decoder and an unshielded twisted pair (UTP) cable to a high speed computer network. The internal circuit connections for the integrated signal conditioning in each insert are welded, rather than soldered.
Patent CA-2267813-A1 (CA)
Title: Application of vehicle protection films
Inventor: POROSZLAY LES
IPC: B29C63/02
Filed: 1999-04-01
Abstract: Apparatus for applying protective tack film having tack and non-tack surfaces to upward facing panels of vehicles, having an applicator unit suspended for vertical movement above a path of movement of a vehicle to be protected, the unit including a primary applicator roll engaging the non-tack surface of the film and extending transversely of the unit so as to apply the film to an upper surface of the vehicle as it moves along said path, means to apply vertical movement to the unit, and means sensing upward pressure applied to the unit through the applicator roll to control the vertical movement application means to maintain substantially constant pressure between the applicator roll and the vehicle, and means to provide tack film from a supply roll to the applicator unit, the applicator unit further including a drive roll driven by a motor to draw tack film from the supply roll, a vacuum manifold arranged to apply vacuum to points distributed over an outside surface of the roll in contact with said tack film to hold the latter against the roll, and means to detach a length of film applied to the vehicle while leaving the end of the film from which the length was detached held to the applicator roll.
Patent CA-2269981-A1 (CA)
Title: Traffic control in a communications network
Inventor: SWALE RICHARD PAUL
IPC: H04Q3/00
Filed: 1997-10-14
Abstract: A method of controlling traffic in an intelligent communications network having a distributed processing environment using software objects corresponding to respective components of the network, wherein each object is associated with a respective service element parameter (SEP) and writes its SEP to a SEP field of each generated request, together with, in the event that the request is generated in response to receipt at the object of a request sent from another object, the contents of the SEP field of the received request. While an object is in overload state it rejects newly received requests if the contents of their SEP  fields are less than a threshold. If the object is already handling a request, a newly received request will take priority if it has a higher SEP  value. The request which gives way may be rejected, or may have its processing suspended.
Patent CA-2271623-A1 (CA)
Inventor: HOMOLA ANDREW M
IPC: A61K6/00
Filed: 1997-07-16
Abstract: The present invention discloses compositions containing a transfer agent and/or bactericidal compounds, and hydrophobic materials which form, upon application to dental surfaces, adhesive, protective and bacteria-inhibiting barriers.
Patent CA-2274699-A1 (CA)
Inventor: JOHANSON JERRY R
IPC: B65D88/28
Filed: 1997-11-03
Abstract: A hopper that greatly reduces the tendency of the particulate material to form bridges within the hopper is shaped so that its walls slope downward more steeply at the bottom of the hopper and slope less steeply with increasing heights above the outlet. In one embodiment the slope decreases continuously with increasing height above the oulet. In another embodiment the hopper is formed of successive sections, each joined around its circumference to the next-lower section, the wall of each section being less steeply inclined than the wall of the adjoining next-lower section. Exact relationships are given, relating the slopes of successive sections, and if the hopper is built in conformity with theses relationships, arching of the particulate material is eliminated.
Patent CA-2275819-A1 (CA)
Inventor: FREEMAN ROBIN JOHN
IPC: G02B27/44
Filed: 1999-06-21
Abstract: An optical instrument is described in which a diffractive element (25) is located at a focal or image plane (3) of the instrument and the diffractive element (25) is effective to produce an array (6) of a plurality of exit pupils at a viewing position for the instrument and thereby to form an enlarged exit pupil for the instrument.      The diffractive element is formed to provide a plurality greater than two of optical diffractive gratings each being disposed angularly relative to others of the plurality of optical diffractive gratings.
Patent CA-2276482-A1 (CA)
Title: Conveyor having serpentine capabilities
Inventor: BONNET HENRI
IPC: B65G47/84
Filed: 1998-01-06
Abstract: An automated conveyor sortation and item (20) discharge system (10) for sorting items of varying sizes and weights to designated output destinations along a conveyor. A serpentine configuration is provided by use of a continuous notched conveyor belt (70) layer, which can have no discharge capabilities, or can include.
Patent CA-2277616-A1 (CA)
Inventor: ADAMS GRANT R JR
IPC: H01R43/00
Filed: 1999-07-16
Abstract: A flexible circuit compression connector system utilized to electrically connect together conductive pads disposed on a rigid printed circuit board, the connector system comprising a flexible insulating substrate having conductive material at a plurality of preselected positions and a conductive line extending between at least two of the preselected positions, a plurality of contacts, each contact secured to the flexible substrate at each of the preselected positions having conductive material, a compression assembly that includes a resilient compression mat and means for aligning the flexible substrate of the compression assembly and the rigid substrate together so that the resilient compression mat urges the contacts secured to the flexible substrate against the conductive pads on the printed circuit board. A method of manufacturing the flexible circuit compression connector system that includes a compression assembly by forming the contacts into a preselected configuration and securing the contacts to the flexible substrate is also included.
Patent CA-2278488-A1 (CA)
Title: Process for preparing fine-particle polysaccharide derivatives
Inventor: ULFIK BENNO
IPC: C08B11/20
Filed: 1998-01-08
Abstract: The invention concerns a novel, particularly economical, process for preparing powdery polysaccharide derivatives, in particular cellulose derivatives with a thermal flocculation point. The process includes the swelling or dissolution of the polysaccharide derivative in a solvent or solvent mixture, breaking up/comminuting the swollen or dissolved polysaccharide derivative by thermal and/or mechanical liquid separation, and optionally a drying step.
Patent CA-2278849-A1 (CA)
Inventor: YUNG W K ALFRED
IPC: C12N15/12
Filed: 1998-01-08
Abstract: A specific region of chromosome 10 (10q23.3) has been implicated by series of studies to contain a tumor suppressor gene involved in gliomas, as well as a number of other human cancers. One gene within this region was identified, and the corresponding coding region of the gene represents a novel 47 kD protein.  A domain of this product has an exact match to the conserved catalytic domain of protein tyrosine phosphatases, indicating a possible functional role in phosphorylation events. Sequence analyses demonstrated that a number of exons of the gene were deleted in tumor cell lines used to define the 10q23.3 region, leading to the classification of this gene as a tumor suppressor.  Further analyses have demonstrated the presence of a number of mutations in the gene in both glioma and prostate carcinoma cells. Methods for diagnosing and treating cancers related to this tumor suppressor, designated as TS10q23.3, also are disclosed.
Patent CA-2280071-A1 (CA)
Inventor: ROFF ROGER R
IPC: A61F5/00
Filed: 1999-08-11
Abstract: A method and system for reinforcing regular chiropractic care comprising the establishment and maintenance of a policy of life insurance on a patient as long as the patient keeps each of a series of regularly scheduled, routine visits for chiropractic care. A programmed general purpose computer maintains the schedule, reminds the patient of upcoming appointments, compares the schedule to patient logs to verify that the schedule of appointments are being kept, and authorizes the policies of life insurance with a preselected insurance company, paying the premiums automatically by wire transfer.
Patent CA-2280798-A1 (CA)
Title: Improved method and device for solid phase microextraction
Inventor: BERG JOHN R
IPC: G01N30/18
Filed: 1998-12-16
Abstract: An improved method and apparatus are described for carrying out SPME onto the inner surface of a syringe needle at least partially coated with a stationary phase followed by desorption of analytes from a sample into a gas chromatograph injector for analysis. The SPME apparatus comprises a syringe having a syringe barrel and a plunger slidable within one end of the barrel, a hollow needle extending from the other end of the barrel and having its inner surface coated with the stationary phase, and fluid communication means for transferring a fluid into contact with the coated inner surface of said hollow needle. During the analysis phase, a carrier gas is transferred into contact with the coated inner surface. A valve means can be used to switch the flow of sample from a container containing the sample during the microextraction phase to the carrier gas during the analysis phase. In a preferred embodiment of the present invention, the carrier gas is preheated before passing into the syringe during the analysis phase.
Patent CA-2281002-A1 (CA)
Title: Dna construct to confer multiple traits on plants
Inventor: JAN FUH-JYH
IPC: C12N1/21
Filed: 1998-02-18
Abstract: The present invention is directed to a DNA construct formed from a fusion gene which includes a trait DNA molecule and a silencer DNA molecule. The trait DNA  molecule has a length that is insufficient to impart a desired trait to plants transformed with the trait DNA molecule. The silencer DNA molecule is operatively coupled to the trait DNA molecule with the trait and silencer DNA  molecules collectively having sufficient length to impart the trait to plants transformed with the DNA construct. Expression systems, host cells, plants, and plant seeds containing the DNA construct are disclosed. The present invention is also directed to imparting multiple traits to a plant.