baber/WOPTO huggingface dataset:
Patent CA-2234215-A1 (CA)
Title: Preparation of recombinant factor viii in a protein free medium
Inventor: HARRIS KATHLEEN
IPC: C12R1/91
Filed: 1998-04-03
Abstract: Recombinant Factor VIII can be produced in relatively large quantities on a continuous basis from mammalian cells in the absence of any animal-derived proteins such as albumin by culturing the cells in a protein free medium supplemented with polyol copolymers, preferably in the presence of trace metals such as copper. In very preferred embodiments, the medium includes a polyglycol known as Pluronic F-68, copper sulfate, ferrous sulfate/EDTA complex, and salts of trace metals such as manganese, molybdenum, silicon, lithium and chromium.
Patent CA-2234694-A1 (CA)
Title: Weld-free gratings for bridge decks
Inventor: MANGONE ROLAND W
IPC: E01D19/12
Filed: 1996-08-21
Abstract: A weldless grating (2) includes a plurality of primary load bearing members (4), a plurality of secondary load bearing members (6), a plurality of tertiary load bearing members (8), and a rod (10). The primary load bearing members (4) have a web (12) and a plurality of openings (14) in the web (12).  The secondary load bearing members are positioned in the openings (14) and include top slots (16), bottom slots (17), and secondary downwardly extending slots (22). The tertiary load bearing members (8) are positioned in the secondary slots (22). The rod (10) extends through the tertiary load bearing members (8) and the primary load bearing members (4), locking the tertiary load bearing members (8) in the secondary downwardly extending slots (22) and locking the secondary load bearing members (6) in the openings (14).
Patent CA-2235178-A1 (CA)
Inventor: BRUECKHEIMER SIMON DANIEL
IPC: H04L12/56
Filed: 1998-06-04
Abstract: Random bit errors in a digital transmission system in which data is scrambled and subsequently descrambled are detected by parsing the descrambled data into words, determining a syndrome error word for each data word, and determining a parity error word for each data word. A data word is left uncorrected when its corresponding syndrome error and parity error words are both zero. Single bit error correction of a data word is effected when its corresponding syndrome error and parity error words are both non-zero. Double or multiple bit error correction of a data word is effected when its corresponding parity error word is zero and its corresponding syndrome error word is non-zero.
Patent CA-2235799-A1 (CA)
Title: System for equalizing the level of charge in batteries
Inventor: WIKSTR M BO
IPC: G01R31/36
Filed: 1996-10-30
Abstract: A system for equalizing the charge level of batteries comprising battery cells (3) or battery blocks (9) connected in series. Controlled voltage converters (4) are on one side connected to a single or groups of battery cells (3) or battery blocks (9) and on another side connected to a common current path (5, 6), a positive conductor (5) thereof being connected to a positive pole (1) of the battery and the negative pole (6) thereof being connected to a negative pole (2) of the battery.
Patent CA-2239176-A1 (CA)
Inventor: WENKE GOTTFRIED
IPC: A61Q5/10
Filed: 1996-11-12
Abstract: Water soluble, cationic products useful as hair colorants or for the treatment of skin which are esters or amides formed by reaction of melanin and a quaternary salt containing a reactive amino or hydroxyl group, as well as compositions containing them and methods of using such products to color hair or treat skin are described.
Patent CA-2240214-A1 (CA)
Title: Process for the production of hydrogen by solar decomposition of water
Inventor: BECK JAMES THOMAS
IPC: F24S23/70
Filed: 1998-06-09
Abstract: The invention provides a process and apparatus for production of hydrogen by thermal decomposition of water. In accordance with the invention, centrifugal forces are applied to water vapour which has been subjected to temperatures sufficient to dissociate oxygen and hydrogen. The dissociated hydrogen thereby separated is preferentially withdrawn from the reactor, driving a further equilibrium shift towards dissociation to improve the efficiency of hydrogen collection. In one embodiment, centrifugal forces may also be used to improve the transfer of heat to the water vapour to facilitate dissociation.
Patent CA-2240508-A1 (CA)
Title: Distributed processing
Inventor: MARTIN PAUL ANTONY
IPC: G06F9/45
Filed: 1997-01-07
Abstract: A compiler for a distributed object system in which functional requirements on system performance criteria can be entered as comments fields in an object oriented language (e.g. C + +) which are ignored by a conventional compiler (to allow compilation of a single processor version of the program for debugging) but are interpreted by a pre-compiler (316) to take into account system data (318) when compiling code for the host computers (10) of the distributed system. The system is preferably a telecommunications system.
Patent CA-2240894-A1 (CA)
Title: Contouring toothbrush head
Inventor: HOHLBEIN DOUGLAS
IPC: A46B9/04
Filed: 1996-12-18
Abstract: A toothbrush having two head sections (14, 16), the sections being normally biased to assume an angle with respect to each other, to thereby define a generally concave bristle tip configuration. The two sections of the head have facing ends joined by a thin bridge section (30) integral with the two heads.  In one embodiment, there is one bridge section (30) near the lower surface of the head. In another embodiment, there are two longitudinally spaced bridge sections each near the lower head surface. In a third embodiment, the bridge section is a thin integral connection between facing ends of the two sections.  In other embodiments, the two head sections are normally aligned and are also joined by a thin, integral bridge section, with the bristles of the head section most remote from the handle being of uniformly different lengths. The space between the two facing ends is filled with an elastomer, typically SantopreneTM. The two head sections define an articulated head. In yet another embodiment, the bridge section is omitted.
Patent CA-2243794-A1 (CA)
Inventor: FLOWER RONALD J
IPC: A61N1/30
Filed: 1998-07-23
Abstract: An iontophoretic drug delivery system of the present invention includes  a  controller  interconnectable  with  a  drug-filled patch.   The  controller  includes  electronic  circuitry which monitors and controls the supply of electrical current to the drug-filled patch during delivery of at least one drug, and the electronic circuitry includes a circuit for causing a voltage step in a battery of a plurality of serially-connected cells. Specifically,  the circuit causes one or more of the cells to discharge through a resistor at a higher rate than the other cells,   thus  producing  a  voltage  step  when  the  faster discharging cell dies before the other cells.  A reverse-biased diode is connected in parallel to the faster discharging cell to cause the current to bypass the faster discharging cell after it has died,  thus preventing it from reverse charging. This circuitry may be controlled to adjust the higher rate of discharge, and thus the time of occurrence of the voltage step.
Patent CA-2245852-A1 (CA)
Inventor: SHUG AUSTIN
IPC: C12Q1/48
Filed: 1997-02-07
Abstract: The present invention provides biochemical assays for diagnosing premenstrual syndrome in human females. The invention also provides diagnostic kits that utilize these assays.
Patent CA-2246002-A1 (CA)
Title: Emetteur pour terminal radiotelephonique et terminal correspondant
Inventor: GREVERIE FRANCK
IPC: H03G3/30
Filed: 1998-10-01
Abstract: L'invention propose un émetteur (1), notamment pour terminal radiotéléphonique portable d'usager, dont la sortie comporte un amplificateur (10) et des moyens (13, 15, 16, 17) permettant de commander le niveau de puissance de sortie de cet amplificateur. L'émetteur comporte en supplément des moyens (6, 7, 8, 9) permettant de contrôler le niveau de puissance du signal d'entrée radiofréquence fourni audit amplificateur pour pouvoir en positionner le point de fonctionnement près ou au niveau de la limite entre zone de fonctionnement linéaire et zone de fonctionnement en saturation.
Patent CA-2246533-A1 (CA)
Title: Suction box in a paper machine and method in the suction box in a paper machine
Inventor: SNELLMAN JORMA
IPC: D21F1/52
Filed: 1997-12-22
Abstract: A suction box in a paper machine comprises a vacuum chamber, a deck or a number of substantially U-section holders open towards the wire or equivalent, and a number of ribs, which have been fitted in said deck or in said holders so that they can be loaded against the wire or equivalent by means of loading means. At least in a running situation, the deck of the suction box or the position of the ribs is curved so that the wire tension lowers the normal force which is produced by the vacuum present in the suction box and which is effective between the wire and the deck/ribs.
Patent CA-2247276-A1 (CA)
Inventor: LEE BURNELL
IPC: C11D7/50
Filed: 1997-02-26
Abstract: This invention relates to a solvent system and process for cleaning cellulose triacetate polymer camera film. The solvent system comprises n-propyl bromide and an alkane containing 6 to 7 carbon atoms.
Patent CA-2249624-A1 (CA)
Title: A receptacle
Inventor: BETHUNE DONALD RAYMOND PETER
IPC: G01F19/00
Filed: 1997-03-21
Abstract: This invention relates to a receptacle (I) capable of holding fluid and having one or more sets of fluid level indicators, wherein a set of fluid level indicators (3) comprises at least two markings (5), characterised in that when the level indicators are viewed during use of the receptacle, the markings do not extend to the pouring mouth of the receptacle (7).
Patent CA-2251710-A1 (CA)
Title: Modular burial vault
Inventor: BISCHOFF WILLIAM J
IPC: E04H13/00
Filed: 1998-11-13
Abstract: An inexpensive burial vault is composed of two substantially identical modular enclosure segments which, when joined together, from an enclosed space in which a decedent confinement chamber may be placed. Each modular enclosure segment is composed of a bottom panel, anterior and posterior head panels, and a left and right side panel. The head panels and side panels are connected to the bottom panel with a slight flare outward, or inscribed angle between the bottom panel and the connected panels a little more than perpendicular.
Patent CA-2255903-A1 (CA)
Title: Composite concrete metal encased stiffeners for metal plate arch-type structures
Inventor: MCCAVOUR THOMAS C
IPC: E21D11/20
Filed: 1997-06-11
Abstract: A composite concrete reinforced corrugated metal arch-type structure comprises: i) a first set of shaped corrugated metal plates (78) interconnected in a manner to define a base arch structure with the corrugations extending transversely of the longitudinal length of the arch;  ii) a second series of shaped corrugated metal plates (24) interconnected in a manner to overlay the first set of interconnected plates of the base arch, the second series of plates having at least one corrugation extending transversely of the longitudinal length of the arch with the troughs of the corrugation of the second series of plates secured to the crests of the first set of plates;  iii) the interconnected series of second plates and the first set of plates define individual, transversely extending, enclosed continuous cavity (80) filled with concrete (86) to define an interface of the concrete enclosed by the metal interior surfaces of the second series of crests and first set of troughs; iv) the interior surfaces of the cavity for each of the first and second plates having means (96) for providing a shear bond at the concrete-metal interface to provide individual curved beams traversing the arch whereby the structure provides positive and negative bending resistance and combined bending and axial load resistance to superimposed loads.
Patent CA-2261043-A1 (CA)
Title: An all-terrain-vehicle tire
Inventor: ROONEY TIMOTHY MICHAEL
IPC: B60C11/11
Filed: 1996-07-18
Abstract: An all-terrain-vehicle tire (10) has a tread (12) specifically designed for mud traction. The tread (12) has four circumferentially repeating rows (1, 2, 3, 4) of elongated lugs (40, 42), two shoulder rows (1, 2) and two central rows (3, 4). Adjacent the axially outer ends (45) of the lugs (42) of the central row (3, 4) is a shoulder block (44).  The tread (12) has soil discharge channels (60) extending axially between the lugs (40, 42). Each channel (60) is open in two locations (61, 62) to one or more axially aligned and circumferentially adjacent soil discharge channels (60). Preferably each location ( 61, 62) represents about 20 % of the axial arc width of a tread half. These locations (61, 62) permit mud to move freely from a forward channel (60) towards a rear channel (60) and enhances tread cleaning as the tire (10) rotates.
Patent CA-2264307-A1 (CA)
Inventor: ZELMER LARRY GLENN
IPC: A41D20/00
Filed: 1999-02-23
Abstract: There is disclosed a scarf having an elongated lightweight body of a fleece material of uniform thickness and of a homogeneous constitution and which body has at one end two transverse slits, each slit being equidistant from the end and running from opposite sides toward the center, and a slit parallel to the elongated shape of the scarf at the opposite end. These slits enable the scarf to remain closed and to hold its position around a wearer's neck when the tranverse slits are inserted into the parallel slit.
Patent CA-2267640-A1 (CA)
Title: Method of making a plastic container with integral channel
Inventor: FILION FRANCOIS
IPC: B65D1/40
Filed: 1999-03-31
Abstract: A method of making fluid receiving plastic containers having walls with fluid circulatable channels integrally formed therein comprises the successive steps of injecting a molten thermoplastic material in a mold cavity having a channel configuration to define, in the container being mold, walls with thicker portions defining a rib configuration, injecting a pressurized gas throughout the rib configuration to displace molten material therein and to form a hollow channel therein, cooling the container being mold while maintaining gas pressure, venting the gas, removing the molded container from the mold and cutting through the hollow channel at two spaced locations to form inlet and outlet openings to the channel to thereby enable circulation of the fluid through the channel.
Patent CA-2268810-A1 (CA)
Title: Electric cooking appliance comprising a device for condensing cooking vapours
Inventor: LEREVEREND JEAN
IPC: A47J37/12
Filed: 1997-10-15
Abstract: The invention concerns a cooking appliance comprising an external housing (3) in which are incorporated a vessel (12), means (14) for electrically heating the vessel, and a box (23) housing a removable device (25) for condensing vapours urged to be connected on operating means (27) communicating with the vessel. The appliance comprises sensing means (65) for sensing the presence of the condensing device (25) in the box (23) and actuated by the said condensing device (25) when it is present in the box (23), and a switch (68) whose control capable of closing the power circuit supplying the heating means is dependent on the actuating of the sensing means (65).
Patent CA-2272446-A1 (CA)
Title: In-line seed treating unit for air seeders
Inventor: SCRIBER TED M
IPC: A01C7/08
Filed: 1999-05-20
Abstract: An in-line seed treating unit is provided for an air seeding implement to coat seeds carried by a flow of air through a product distribution line before being planted into the ground. The in-line seed treating unit includes a cylindrical housing having input and outlet ends located at opposing axial ends of the cylindrical housing to provide a generally linear overall flow path for the seed entrained air flow through the product distribution line. A baffle formed as a spiral flighting with an open center portion is disposed within the cylindrical housing to induce the air flow and entrained seeds in a spiral flow path along the housing axis and, thereby pushing the entrained seeds outwardly toward the inner wall of the housing. The seed treatment material is injected through an injection port located at a distance less than one flighting pitch of the baffle so that the seed treatment material is dispersed within the air flow to coat the entrained seeds. Preferably, the in-line seed treating unit is formed as a modular component that can be inserted into any selected product distribution line on the air seeding implement.
Patent CA-2275623-A1 (CA)
Inventor: WUN CHUN K
IPC: G01N33/558
Filed: 1997-08-27
Abstract: A motility channel pathogen detector and method of use of the detector are disclosed for detecting a target motile pathogen in a test sample of potential pathogens. The motility channel pathogen detector includes: a dish having a base and walls arising from the base to define a motility channel; an anti-serum end of the motility channel; an inoculation end of the motility channel opposed to the anti-serum end; and opposed channel walls that cooperate to define the motility channel between the anti-serum and inoculation ends of the channel. A growth medium is positioned in the motility channel and an anti-serum that biologically interacts with the target motile pathogen is positioned in the growth medium in the anti-serum end so that the anti-serum diffuses in the growth medium to form an anti-serum front between the channel walls. The sample of potential pathogens is inoculated in the growth medium adjacent the inoculation end so that any target motile pathogen moves towards, contacts and accumulates at the anti-serum front to form a visible detection line adjacent the anti-serum front. In one embodiment the target motile pathogen is a serotype of Escherichia coli bacteria generally known as "E.  coli 0157:H7", and the anti-serum is E. coli H7 anti-serum which restricts motility of the pathogen.
Patent CA-2276593-A1 (CA)
Inventor: ROCHEFORT MALCOLM
IPC: B32B5/18
Filed: 1999-06-25
Abstract: A fire retardant insulating board 1 comprises a foam core 2 having facings 3, 4 on both faces thereof The foam core is reinforced by a glass fiber scrim 5 having a weight of from 8 to 24, preferably 10 to 20 and ideally approximately 13.6 g/m2 of board. To produce the board 1 in a continuous manufacturing process the facings 3, 4 with the scum 5 and foam reactants are passed under a nip bar 30 to thoroughly wet out the scrim 5 before allowing the foam to expand.
Patent CA-2279734-A1 (CA)
Title: Product housing stacked body of wet tissues
Inventor: BANDO TAKESHI
IPC: A47K10/16
Filed: 1999-08-05
Abstract: A wet tissue product composed of a stacked body of folded wet tissues and a container or package housing the stacked body is disclosed. The folded wet tissues fall into two groups; a first-group of folded wet tissues and a second-group of folded wet tissues. Each of the first-group of folded wet tissues is formed by folding a plane wet tissue in two generally along a centerline thereof to have an upper half and a lower half, and each of the second-group of folded wet tissues is formed by folding a plane wet tissue with one edge thereof upward and the other edge thereof downward, to have an upper folded portion, a lower folded portion and an intermediate portion. The first-group of folded wet tissues and second-group of folded wet tissues are alternately stacked in such a manner that the upper half of the first-group of folded wet tissue is sandwiched between the lower folded portion and the intermediate portion of the overlying second-group of folded wet tissue, and the lower half of the first- group of folded wet tissue is sandwiched between the upper folded portion and the intermediate portion of the underlying second-group of folded wet tissue, thereby to form the stacked body.
Patent CA-2279775-A1 (CA)
Inventor: STEURY EDWIN J
IPC: B60P3/34
Filed: 1999-08-09
Abstract: A lift for a top of a travel trailer includes flexible push-pull elements extending from a centrally mounted actuator unit through flexible and bendable guide conduits to outer end fittings adjacent corner jacks for raising and lowering the top. The guide conduits are connected to L-shaped guide members of outer end fittings disposed in alignment with the jacks. The L-shaped members are mounted for swivelling movement around vertical legs thereof to facilitate alignment with the flexible guide conduits and assembly of the parts.
Patent CA-2280412-A1 (CA)
Inventor: TILL KENNETH A
IPC: C21D9/56
Filed: 1999-08-16
Abstract: An apparatus and method for generating artificial atmospheres in a furnace for the heat treating of materials. The furnace includes a substantially isolated chamber having a discharge receiving orifice for accepting a bi-phasic cryogen into a hot/work zone of the chamber. A low pressure cryogen source feeds a bi-phasic inert gas into the chamber in order to allow the volumetric expansion of the evaporating liquid constituent of the biphasic cryogen to purge a substantial portion of the ambient oxygen from the chamber and to allow a substantial residual concentration of the inert gas to blanket the process area without significant dissipation during the heat treating process. Oxidizable materials heat treated in artificial atmospheres generated by use of bi-phasic cryogens show no signs of scaling or staining through the process and thus do not need to undergo acid bathing prior to subsequent processing.
Patent CA-2282159-A1 (CA)
Inventor: YAZAKI TAKEKI
IPC: H04L49/901
Filed: 1999-09-10
Abstract: A packet forwarding apparatus provided with a plurality of line interface units, comprises a routing processing unit for referring to a routing table, based on header information of received packet to specify one of output lines to output the received packet, a flow detection unit for referring to an entry table, in which a plurality of entries with flow conditions and control information are registered, to retrieve control information defined by the entry with a flow condition which coincides with that of the header information of the received packet, and a packet forwarding unit for transferring the received packet to one of the line interface units connected to the output line specified by the routing processing unit. The entry table id divided into a plurality of subtables corresponding to the values of flow attributes associated with the received packets and the flow detection unit retrieves the control information from one of said subtables specified by the value of the flow attribute corresponding to the received packet.
Patent CA-2283995-A1 (CA)
Title: Multiplexing power converter
Inventor: TERRY FRANCIS H
IPC: H02M3/28
Filed: 1998-03-09
Abstract: A multiplexing power converter (20) for use with a single inductor (32) for providing multiple power outputs is disclosed. The multiplexing power converter (20) includes first switching means (26) for providing a first low resistance path for current to flow from a power source (VIN) through an inductor (32) so as to energize the inductor (32), and at least one second switching means (28) for providing at least one second low resistance path for current to flow from the inductor (32) so as to deenergize the inductor (32) and provide an output current. Only one low resistance current path is provided at any one time.
Patent CA-2284060-A1 (CA)
Inventor: EISELE ROBERT
IPC: A61M16/00
Filed: 1998-03-16
Abstract: A dry powder inhaler (1) has a lid (20) pivotally attached to an inhaler housing (5). The inhaler includes a mixing chamber (8), a medicine cartridge (60) and a pressure switch (19).