baber/WOPTO huggingface dataset:
Patent CA-2264809-A1 (CA)
Title: Method and apparatus for encrypting radio traffic in a telecommunications network
Inventor: RUNE JOHAN
IPC: H04L9/30
Filed: 1997-08-26
Abstract: A generic communications network (100) provides an encrypted communications interface between service networks (130, 132, 134) and their subscribers. When communications are initiated between a subscribing communications terminal (118) and the generic network (100), the terminal (118) compares a stored network identifier associated with a stored public key, with a unique identifier broadcast by the generic network (100). If a match is found, the terminal (118) generates a random secret key, encrypts the secret key with the stored public key, and transmits the encrypted secret key. The generic communications network (100) decrypts the secret key using a private key associated with the public key. The secret key is used thereafter by the terminal (118) and the generic network (100) to encrypt and decrypt the ensuing radio traffic. Consequently, the network (100) can maintain secure communications with the terminal (118) without ever knowing the terminal's identity.
Patent CA-2266690-A1 (CA)
Inventor: AUGUSTE STEPHANE
IPC: A61L15/58
Filed: 1997-09-15
Abstract: The invention concerns a novel hydrophile adhesive mass to be used for medical purposes characterised in that said hydrophile adhesive mass comprises: (a) 10 to 35 parts by weight of a sequenced poly(styrene-olefin-styrene) copolymer, in particular poly(styrene-isoprene- styrene), (b) 25 to 50 parts by weight of a tackifier resin, (c) 2 to 15 parts by weight of an acrylate polymer having a glass temperature less than -20 ~C, (d) 2 to 25 parts by weight of a plasticizer, in particular a plasticizing oil, (e) 20 to 50 parts by weight of a hydrocolloid, (f) 0.1 to 2 parts by weight of at least one antioxidant. The invention also concerns the use of this adhesive mass for making protective bandages in particular for treating blisters, skin-deep dermo-epidermic lesions, exudative wounds and burns.
Patent CA-2267080-A1 (CA)
Title: Process for the preparation of cyclic 4-oxoamidines
Inventor: DRAUZ KARLHEINZ
IPC: C07D233/32
Filed: 1999-03-26
Abstract: The present invention relates to a process for the preparation of cyclic 4-oxoamidines. Such substances are precursors of active substances having biological action. The process according to the invention forms a further method of obtaining this class of compound.      By reacting condensation products of aldehydes and amino-nitriles or amino acid amides with oxidising agents, the desired cyclic 4-oxoamidines are obtained according to the invention in good to very good yields.
Patent CA-2268405-A1 (CA)
Title: Stabilized gas-supersaturated emulsions and suspensions
Inventor: SPEARS J RICHARD
IPC: A61K9/14
Filed: 1997-10-09
Abstract: The present invention provides a method of delivering an emulsion or suspension containing a supersaturated gas into a gas-depleted environment.  The method generally comprises the steps of preparing an emulsion or suspension, exposing the emulsion or suspension to a gas at a pressure greater than 2 bar, and delivering the emulsion or suspension to a gas-depleted environment at ambient pressure.
Patent CA-2268497-A1 (CA)
Title: Internet subscriber profile
Inventor: BLEUSE PATRICE
IPC: H04M7/00
Filed: 1999-04-19
Abstract: The internet access unit allows the internet services required by the user to be accessed whilst other services are not available to that user.
Patent CA-2270384-A1 (CA)
Title: Liquid cross-linker compositions containing 1,3,5-triazine carbamate/aminoplast resin mixtures
Inventor: WU KUANG-JONG
IPC: C08G12/00
Filed: 1997-09-18
Abstract: High solids, liquid cross-linker compositions based on mixtures of 1,3,5triazine carbamates and aminoplast resins and processes for preparing the same are disclosed. The liquid cross-linker compositions are particularly suited for use in formulating curable compositions such as high solids coatings compositions to be applied by spraying for use in automotive original equipment manufacture (OEM) and other related applications.
Patent CA-2270938-A1 (CA)
Inventor: STANCHAK CARL M
IPC: G05F1/10
Filed: 1998-09-03
Abstract: The present invention discloses an integrated constant bias voltage generator using only active device to simulate a high impedance node, as seen from a capacitively coupled input signal VIN. A reference current source (56) and an active nonlinear device (51), such as a MOS transistor (91), are coupled in series between VCC and ground with the drain electrode X of the nonlinear device (51) being the constant bias voltage output VBIAS. An input signal VIN  capacitively coupled to said drain electrode X introduces an error current .DELTA.i monitored by a current monitoring means (58). A feedback means (57) responsive to the current monitoring means (58) modulates the control input Z  of the nonlinear device (51) to select an IXY vs. VXZ characteristic current-voltage curve that maintains the VXZ voltage of the nonlinear device (51) at its current level in spite of changes in its IXY current due to the error current .DELTA.i. The feedback means (57) also compensates for voltage fluctuations in VCC.
Patent CA-2271509-A1 (CA)
Title: Conveying a tool along a non-vertical well
Inventor: ROY CARL J
IPC: E21B23/14
Filed: 1999-05-12
Abstract: A conveyance apparatus for conveying at least one logging tool through an earth formation traversed by a horizontal or highly deviated borehole is disclosed. The conveyance apparatus comprises a pair of arcuate-shaped cams pivotally mounted to a support member, means for biasing the arcuate surface of each cam into contact with the borehole wall, and actuators operatively connected to each cam. A logging tool is attached to the conveyance apparatus. When either actuator is activated in a first direction, the cam connected to the activated actuator is linearly displaced forward and the arcuate surface of the cam slides along the borehole wall. When either actuator is activated in a second direction, the activated actuator pulls the connected cam backwards and the biasing means thereby urges the arcuate surface of the cam to lock against the borehole wall. Once the cam is locked, further movement of the actuator propels both the conveyance apparatus and the logging tool forward along the highly deviated or horizontal borehole.
Patent CA-2273024-A1 (CA)
Inventor: BIRKELAND BJORN
IPC: H04L29/02
Filed: 1997-11-26
Abstract: The present invention relates to a method in connection with serial data, to recognize a frame synchronization pattern, and for the sake of providing a fast and reliable search algorithm especially for V.110 synchronization pattern, the present invention suggests a method characterized by examining two successive bytes by performing a binary AND operation between the first byte and a check byte made up from the value of the second byte, examining if the AND operation is zero for thereby establishing whether said first byte and second byte qualify as candidates for the synchronization pattern, and further verifying said candidates by checking further criteria given by the frame in question.
Patent CA-2275418-A1 (CA)
Title: Coformed dispersible nonwoven fabric bonded with a hybrid system and method of making same
Inventor: JACKSON DAVID MARTIN
IPC: D04H1/407
Filed: 1997-12-30
Abstract: A water-dispersible coformed fibrous nonwoven fabric structure comprising a primary reinforcing polymer material, preferably capable of being meltspun; a secondary reinforcing polymer material having an average fiber length less than or equal to about 15 mm and preferably having a softening point at least about 30 ~C lower than the softening point of the primary reinforcing polymer;  and, an absorbent material, such as pulp or a superabsorbent. The fabric structure maintains desired tensile strength and softness while being water-dispersible and flushable. The fabric produced can be incorporated into an article and can be flushed down a commode. The fabric is flushable when placed in water, with agitation, if necessary, and will disperse into unrecognizable pieces without clogging conventional plumbing or piping. A method of producing the fabric structure comprises mixing the secondary reinforcing material and absorbent material and injecting this coform blend into a stream of meltspun primary reinforcing fibers. After a web structure has been established, the structure is exposed to thermal or ultrasonic energy sufficient to soften and bond the secondary reinforcing material fibers, but not to soften the primary reinforcing material fibers. An embossed pattern can be printed on the structure.
Patent CA-2278364-A1 (CA)
Title: Oriented coextruded films
Inventor: BRANT PATRICK
IPC: B32B27/32
Filed: 1998-02-24
Abstract: The invention is an oriented multilayer film comprising at least one outer layer comprising from 50 to 100 wt.% of said outer layer of an ethylene copolymer having a density of 0.900-0.935 g/cm3 and a CDBI of 50-95 % said outer layer being in contact with a polypropylene core layer, and said film having been made by coextrusion of said ethylene copolymer and said polypropylene layer and subsequent orientation. The coextruded layers can be uniaxially oriented biaxially oriented on tenter equipment without difficulties caused by the presence of low molecular weight amorphous polymer fractions inherently present in traditional Ziegler-Natta linear low density polyethylene. The optical properties of biaxially oriented polypropylene films can be retained while the sealing temperature is lowered and the heat seal strength and the hot tack performance properties are improved.
Patent CA-2280426-A1 (CA)
Inventor: JOHNSTON GARY
IPC: A01K1/015
Filed: 1999-08-16
Abstract: A wood based product comprises condensed natural wood fibres. The wood fibres have bulk density of about 20 lbs/ft3 or greater at moisture content of about 15 % by weight or less, and each particle of the wood fibres has a particle size of less than about 3/16 inch. By using such condensed wood fibres, the wood based product is capable of functioning as physical bedding for poultry that can absorb moisture and ammonia for a complete production cycle of commercial poultry operations.
Patent CA-2280886-A1 (CA)
Title: Telescopic drawer slide with soft sequencing latch
Inventor: PARVIN JACKIE D
IPC: A47B88/49
Filed: 1998-02-06
Abstract: A sequencing latch adapted for use with drawer slides. The sequencing latch comprises a latch arm (51) carried by a slide member (26), a spring arm (63) extending from the latch arm in compressive contact with the slide member biasing the latch arm into engagement with a locking element (77) on a second slide member (41) and an actuator (91) on a third slide member (11) for disengaging the latch arm. The actuator disengages the latch arm by applying a force to the latch arm with a component oppositely directed and of sufficient magnitude to overcome the compressive spring force. Interaction of the locking element with the latching arm and the interaction of the actuator with the latching arm may both serve as frictional interfaces during slide operation.
Patent CA-2281473-A1 (CA)
Title: Dosage form exhibiting rapid disperse properties, methods of use and process for the manufacture of same
Inventor: MONKHOUSE DONALD C
IPC: A61K9/00
Filed: 1998-02-20
Abstract: A rapidly dispersing dosage form is described, which releases its active ingredients within a period of less than about ninety seconds. These dosage forms exhibit a three-dimensional shape that is retained for adequate storage but is readily dispersed in the presence of excess moisture. Also disclosed are methods of administration of a medicament and a process for the preparation of rapidly dispersing dosage forms.
Patent CA-2281879-A1 (CA)
Title: Carboxypeptidase modifie
Inventor: BREDDAM KLAUS
IPC: C12N9/48
Filed: 1998-02-27
Abstract: L'invention porte sur un procédé de transmission d'un substrat peptidique présentant un résidu d'acide aminé P¿1? au moyen d'une chaîne latérale à charge positive. Selon l'invention, le carboxypeptidase Y est modifié pour remplacer au moins un acide aminé présentant une chaîne latérale à charge négative dans un site secondaire S¿1?. En outre, le carboxypeptidase Y modifié peut inclure des résidus d'acide aminé substitué dans un site secondaire S¿1?', S¿2? et/ou S¿3? pour incorporer un substrat peptidique spécifique.
Patent CA-2282474-A1 (CA)
Inventor: BUSCH ALFRED
IPC: C11D3/00
Filed: 1997-03-07
Abstract: The present invention relates to detergent compositions, including laundry, dishwashing and household cleaning compositions, comprising a xylan degrading alkaline enzyme and a dye transfer inhibiting polymer.
Patent CA-2283916-A1 (CA)
Inventor: WEBSTER STEPHEN P
IPC: H04L25/06
Filed: 1998-04-01
Abstract: A serial digital data communications receiver with an improved automatic cable equalizer that is less susceptible to jitter and has greater multi-standards capability, and an improved automatic gain control system with a DC restorer that provides optimal edge jitter performance while avoiding the possibility of a latch-up condition at the start of data transmission. The automatic cable equalizer for equalizing signals received over cables of different lengths has multiple stages each having a transfer function of 1 + Ki¢fi(j.omega.)! wherein each of the Ki varies in accordance with a sequential gain control methodology. The AGC system uses the difference between band-pass filtered versions of the amplitudes of the input and output of a DC restorer based on quantized feedback, to regulate the AGC circuit. The DC restorer comprises a comparator for generating a quantized output and further clamps the input with a clamping circuit so that a version of the quantized output is fed back to the input while avoiding the possibility of operational failure of the comparator at the onset of data transmission.
Patent CA-2285345-A1 (CA)
Title: Non-coatable drywall finishing system
Inventor: SMYTHE TIMOTHY D JR
IPC: E04F13/06
Filed: 1998-04-02
Abstract: A drywall finishing system including a multi-angle corner bead (1, 12, 26) that forms comer areas where drywall ends against another surface. Most of the intense labor associated with present methods is eliminated since none of the parts need to be coated with mud nor smoothed as by sanding. Corner bead and trim pieces (30, 40, 50) are simply placed on top of a coat of applied mud at the comer. No nails are required since the corner pieces stick to the mud. The corner piece (30) may be cut to length. A coat of mud is applied to both sides of an interior or exterior angle, with the device being placed over the mud and smoothed into place. Once the piece is in place, the edges are covered with a small amount of mud using a wide blade. The comer is then allowed to dry. When dry, the comer can be textured or painted.
Patent CA-2286217-A1 (CA)
Title: An ostomy appliance
Inventor: OLSEN ESKIL HOIJLAND
IPC: A61F5/441
Filed: 1998-04-07
Abstract: An ostomy appliance comprising a front wall and a rear wall of flexible material, the rear wall having an opening into the bag by which waste material can enter the bag and one of the walls has one or more vents through which gas may escape from the bag and having a filter covering said vent, said filter comprising an elongated, substantially flat filter body of a porous filter material interposed between gas and liquid impervious walls which are sealed to the body along its longitudinal side edges; gas inlet and outlet openings being provided in communication with the filter material adjacent to its respective longitudinal end regions, wherein both of the gas and liquid impervious walls are sealed to the upper and lower surfaces of the filter body, the arrangement being so that in use gas flows longitudinally through the filter from the inlet opening to the outlet opening, such gas flow being confined to said filter element, wherein the inlet opening is covered by a hydrophobic sheet, wherein the inlet opening is covered with a microporous oleophobic membrane and wherein a foam material is placed between the front wall and the rear wall and covering the inlet opening of the vent shows improved resistance against wetting and blocking of the filter.
Patent CA-2286608-A1 (CA)
Inventor: NG TONY
IPC: F21V15/00
Filed: 1998-04-10
Abstract: An improved mounting arrangement is provided for supporting a tubular lamp, particularly such as a lamp used in fluid treatment processes, within a protective jacket such as a transparent sleeve of quartz glass or the like. The protective jacket is mounted by a compression nut to a threaded socket adapted for slide-fit reception of the lamp through the socket and into the protective jacket. The lamp comprises an elongated tubular glass lamp body having distal and proximal ends thereof supported by distal and proximal end caps each including spacers for centering the lamp body in spaced relation to the protective jacket. The proximal end cap comprises a lamp base with conductive terminal pins for connection to an electrical power source, and further includes outwardly projecting lock tabs for engagement, preferably with a quarter-turn rotation, with the compression nut to releasably lock the lamp in position. A terminal connector is provided for coupling the terminal pins to a power source, and is removably retained in place by a retainer cap mounted onto the compression nut.
Patent CA-2286881-A1 (CA)
Inventor: CONRAD WAYNE ERNEST
IPC: H02P27/06
Filed: 1999-10-15
Abstract: A method and apparatus are provided for optimizing power drawn from primary or secondary cells. This is achieved by providing a pulse train. A first pulse train, optimized for the battery, can further be modified to generate a second pulse train, optimized for a particular load.
Patent CA-2289505-A1 (CA)
Title: Composition for treating hair
Inventor: CANNELL DAVID
IPC: C11D3/20
Filed: 1997-10-27
Abstract: The present invention relates to a hair treatment composition which provides an excellent finishing effect and superior protection against environmental, chemical, and grooming-associated damage. The compositions of the present invention comprise hydrolyzed protein having an abundance of anionic amino acids and in particular, sulphur-containing amino acids, as well as divalent cationic compounds, such that the anionic components of the hydrolyzed protein may effectively bind to the hair by means of cationic bridges. While bound to the hair, the sulphur containing amino acids in the hydrolyzed protein may serve as "decoys" for the effects of a variety of damaging agents. Compositions of the present invention may further comprise a vitamin compound which enhances these protective benefits.
Patent CA-2293313-A1 (CA)
Title: Polishing glass
Inventor: CAMPBELL BRIAN REGINALD
IPC: C03C17/23
Filed: 1998-06-10
Abstract: A method of making coated glass comprising producing a continuous ribbon of glass, depositing a coating onto a surface of the ribbon during the production process and polishing the coated surface of the ribbon using at least one rotating polishing head. Preferably one or more of the rotating polishing heads have an axis of rotation substantially parallel to the plane of the ribbon. The invention also provides a method of treating glass comprising polishing a surface of the glass with at least one polishing head wherein the axis of rotation of the polishing head is substantially parallel to the plane of the glass, glass polished according to the methods of the invention and a flat glass production line comprising a polishing station including at least one rotating polishing head.
Patent CA-2293734-A1 (CA)
Title: Gene screening vector and gene detection method
Inventor: AIGAKI TOSHIRO
IPC: C12Q1/68
Filed: 2000-01-13
Abstract: The present invention provides a gene search method comprising P-element insertion and being capable of efficiently identifying a novel gene regulating various biological functions of Drosophila and specifying a function corresponding to the novel gene. An unknown gene of Drosophila can be searched by the method comprising a step of inserting in the genome of Drosophila a gene search vector carrying two sets of an expression regulatory sequence comprising UAS sequence for GAL4 transcription factor GAL4 and a promoter sequence, as integrated in the P-element sequence in such a manner that their downstreams are in opposite directions, mating the vector-inserted Drosophila with a Drosophila expressing the GAL4 to create progeny individuals, and identifying a vector-inserted line with a phenotype different from those of wild-type Drosophila, and determining the nucleotide sequence of the gene for the mutant phenotype.
Patent CA-2293856-A1 (CA)
Inventor: CHAN ALBERT WAI
IPC: A63H3/28
Filed: 2000-01-04
Abstract: An interactive dress-up toy comprises removable clothing and accessories, sensor means to detect the specific item of clothing or the specific accessory worn by the toy, and communication means to communicate to the user the status of the clothing and accessories worn by the toy or missing from the toy.
Patent CA-2295025-A1 (CA)
Inventor: RUSSELL EDWIN ROBIN
IPC: A47B21/03
Filed: 1999-05-19
Abstract: A mechanism is disclosed for effecting the relative angular adjustment of a pair of coupled members (102, 104). A rotor (106) is mounted on an axle (108) that is mounted on one member (104), the rotor having a planar face on one side that has an arcuate groove (112) formed therein such that the radial distance between the groove and the axle varies in a gradual manner with variation in angle about the axle. A pin (114) or the like protuberance is mounted on the other member (102) of the pair so as to enter and be slidingly engaged by groove (112). The arrangement is such that rotation of the rotor causes relative angular movement of the members, but pressure between the members will not cause the rotor to turn. The application of this mechanism to the adjustment of keyboard platforms and monitor supports is disclosed.
Patent CA-2295551-A1 (CA)
Title: Electron-emitting device, electron source substrate, electron source, display panel and image-forming apparatus, and production method thereof
Inventor: MIYAMOTO MASAHIKO
IPC: B41J2/04
Filed: 1995-12-15
Abstract: A method of producing an electron-emitting device includes the steps of forming a pair of electrodes and an electrically-conductive thin film on a substrate in such a manner that the pair of electrodes are in contact with the electrically-conductive thin film and forming an electron emission region using the electrically-conductive thin film, wherein the method is characterized in that a solution containing a metal element is supplied in a droplet form onto the substrate thereby forming the electrically-conductive thin film.
Patent CA-2298799-A1 (CA)
Title: Electronic contracts
Inventor: PEACH NICHOLAS ANTHONY JOHN
IPC: G06Q20/00
Filed: 2000-02-16
Abstract: The invention provides a digital contract comprising a sealed package comprising a header package comprising: rules defining any sealed packages to be included in said contract; a validating party who is to validate said header package; and a sealing party who is to seal said package; a body containing at least a portion of the content of the package;  and a validating signature generated from said rules and said body according to a first key belonging to said validating party; any sealed packages defined in said rules; and a sealing signature generated from said header package and any of said sealed packages according to a first key belonging to said sealing party. Further provided is contract management software for generating, validating, exchanging and managing such contracts.