baber/WOPTO huggingface dataset:
Patent CA-2269801-A1 (CA)
Title: Stable expression of triple helical proteins
Inventor: RAMSHAW JOHN ALAN MAURICE
IPC: C12N15/09
Filed: 1997-10-29
Abstract: The invention relates to a method of producing a hydroxylated triple helical protein in yeast comprising the steps of: introducing to a suitable yeast host cell a first nucleotide sequence encoding P4H .alpha. subunit, a second nucleotide sequence encoding P4H .beta. subunit and one or more productencoding nucleotide sequences which encode(s) a polypeptide(s) or peptide(s) which, when hydroxylated, form the said hydroxylated triple helical protein, each of said first, second and product-encoding nucleotide sequences being operably linked to promoter sequences; and culturing said yeast host cell under conditions suitable to achieve expression of said first, second and product-encoding nucleotide sequences to thereby produce said hydroxylated triple helical protein; wherein said method is characterised in that the step of introducing the first, second and product-encoding nucleotide sequences results in the said first, second and product-encoding nucleotide sequences, together with their respective operably linked promoter sequences, being borne on one or more replicable DNA molecules that are stably retained and segregated by said yeast host cell during said step of culturing. Transformed yeast host cells and triple helical proteins produced in accordance with the method of the invention are also claimed.
Patent CA-2270215-A1 (CA)
Inventor: JAENEN JOHANNES
IPC: B65B43/12
Filed: 1997-10-29
Abstract: There is provided transport apparatus for carton blanks (11). The blanks are delivered to a pair of rotating nip rollers (17) by using a segment wheel (15) and a swinging suction arm (16). The nip rollers (17) are driven at a predetermined speed so as to deliver the blanks (11) between two pairs of endless belts (18, 19) which are driven at the same speed as each other, the speed of the belts being slower than that of the nip rollers (17). The blanks (11) are, therefore, received by the nip rollers (17) in a pitched manner but the relative speed ensures that the blanks are transported by the endless belts (18, 19) in an unpitched, end to end relationship.
Patent CA-2271288-A1 (CA)
Title: Antiviral peptide derivatives
Inventor: KAY PAUL BRITTAIN
IPC: C07D407/10
Filed: 1997-11-07
Abstract: The invention provides amino acid derivatives of formula (I) wherein E represents CHO or B(OH)2; R1 represents lower alkyl (optionally substituted by halo, cyano, lower alkylthio, aryl-lower alkylthio, aryl or heteroaryl), lower alkenyl or lower alkynyl; R2 represents lower alkyl optionally substituted by hydroxy, carboxy, aryl, aminocarbonyl or lower cycloalkyl; and R3 represents hydrogen or lower alkyl; or R2 and R3 together represent di- or trimethylene optionally substituted by hydroxy; R4 represents lower alkyl (optionally substituted by hydroxy, lower cycloalkyl, carboxy, aryl, lower alkylthio, cyano-lower alkylthio or aryl-lower alkylthio), lower alkenyl, aryl or lower cycloalkyl; R5 represents lower alkyl (optionally substituted by hydroxy, lower alkylthio, aryl, aryl-lower alkylthio or cyano-lower alkylthio) or lower cycloalkyl; R6 represents hydrogen or lower alkyl; R7 represents lower alkyl (optionally substituted by hydroxy, carboxy, aryl or lower cycloalkyl) or lower cycloalkyl; R8 represents lower alkyl optionally substituted by hydroxy, carboxy or aryl; and R9 represents lower alkylcarbonyl, carboxy-lower alkylcarbonyl, arylcarbonyl, lower alkylsulphonyl, arylsulphonyl, lower alkoxycarbonyl or aryl-lower alkoxycarbonyl, and salts of acidic compounds of formula (I) with bases, which are viral proteinase inhibitors useful as antiviral agents, especially for the treatment or prophylaxis of infections caused by Hepatitis C, Hepatitis G and human GB viruses.
Patent CA-2271408-A1 (CA)
Inventor: SHIMIZU EIICHIRO
IPC: B41J2/175
Filed: 1999-05-10
Abstract: A liquid container having a negative pressure generating member containing chamber containing therein a negative pressure generating member formed of a fiber material and provided with a liquid supplying portion and an atmosphere communicating portion, a liquid containing chamber provided with a communicating portion communicating with the negative pressure generating member containing chamber and forming a substantially hermetically sealed space and storing therein liquid to be supplied to the negative pressure generating member, and a partition wall for partitioning the negative pressure generating member containing chamber and the liquid containing chamber and forming the communicating portion is provided with gas introduction blocking means cooperating with the partition wall and the liquid contained in the negative pressure generating member containing chamber to block the introduction of gas from the communicating portion into the liquid containing chamber except during the supply of the liquid from the liquid supplying portion to the outside.
Patent CA-2272198-A1 (CA)
Inventor: COLISTRO VINCENT A
IPC: A01D75/20
Filed: 1999-05-19
Abstract: A chain guard is used on a rotary mower to prevent objects from being thrown out from under the mower. The chain guard includes adjacent strands of chain forming a curtain. The adjacent strands are linked by cross links spaced along the chains to form a chain net which is more effective at trapping up thrown objects than the unlinked chains.
Patent CA-2273688-A1 (CA)
Title: In situ build-up electrode for electrolysis of organic compounds
Inventor: MENARD HUGUES
IPC: C25B3/25
Filed: 1999-06-04
Abstract: Described herein is an electrode made inside an electrochemical cell by entrapping in an open pore matrix a suspension of essentially non-soluble catalytic particles of high specific surface area. In preferred embodiments, the matrix is a piece of reticulated vitreous carbon and the catalytic particles are palladium.
Patent CA-2275361-A1 (CA)
Inventor: GUERET JEAN-LOUIS
IPC: A45D40/22
Filed: 1998-10-23
Abstract: L'invention est relative à un boîtier, comportant un couvercle et un corps de boîtier ajouré, recevant une réserve de produit contenue dans une coupelle. Il comporte un joint d'étanchéité (6) assujetti à la coupelle (5) et s'appliquant de manière étanche sur le corps de boîtier (2).
Patent CA-2278202-A1 (CA)
Title: Closed cell polymer foam
Inventor: CROSS BERNARD JOHN
IPC: C08J9/00
Filed: 1998-01-16
Abstract: A closed-cell polymer foam having a density of less than 100 kg.m-3 is described. The cells in the foam contain a foam blowing agent comprising (a) a blend of two or more hydrofluorocarbons, (b) a blend comprising a carbon dioxide and one or more hydrofluorocarbons or (c) a blend comprising dimethyl ether and one or more hydrofluorocarbons, and the polymer is a blend comprising at least 50 % by weight of an olefinic polymer(s) and up to 50 % by weight of a polar polymer(s) having a lower molecular weight than the olefinic polymer which when in the heat plasticised state is able to dissolve the foam blowing agent.  A process for preparing the foam is also described.
Patent CA-2280200-A1 (CA)
Title: Dispositif pour imprimer par jets d'encre sur des surfaces rigides
Inventor: DER VELOY BERTRAND
IPC: B41J3/413
Filed: 1999-08-10
Abstract: Avec une imprimante à jets d'encre, il est connu d'imprimer des textes, des dessins, des photos ou des illustrations sur du papier ou du film prévu à cet effet. Dans  la présente invention, le dispositif d'impression permet d'imprimer par jets d'encre sur des volume s rigides en verre, en bois, en métal ou en pierre, possédant au moins une surface plane. L'invention dans le dispositif concerne une mécanique adaptée au déplacement  d'une cage contenant le volume rigide sur lequel l'impression par jets d'encre est  effectuée. Ce dispositif possède des possibilités de réglage de hauteur de la tête d'impression avec la face plane à imprimer, d'entraînement de la cage par courroie ou vis sans fi n synchrone, d'embrayage de la cage et du moteur pas à pas d'avance perpendiculaire au chemin de déplacement de la tête d'impression.
Patent CA-2280683-A1 (CA)
Inventor: GE MING
IPC: E03D3/04
Filed: 1999-08-23
Abstract: A pressure flushing system for use in a toilet tank includes a housing with a water inlet conduit, an air and water inlet assembly connected to the conduit and to the housing, and a water outlet for the housing. There is a flush valve within the housing for controlling flow of water from the inlet to the housing outlet. The air and water inlet assembly includes a chamber, with a water inlet connected to the chamber, and an outlet connected to the chamber. There is an air inlet accessible to air at atmospheric pressure and a passage between the air inlet and the chamber. A check valve is located in the passage, with the check valve opening in response to a venturi effect caused by water flow through the chamber to draw air into the chamber to mix with water flowing through the chamber and to the outlet. The check valve includes an elastomeric sleeve positioned within the passage and having normally closed flexible lips extending toward the chamber. The lips open to permit the passage of air into the chamber to mix with the water therein when there is a pressure in the chamber less than atmospheric.
Patent CA-2280943-A1 (CA)
Title: Thermal print head module and method for using
Inventor: PAWELKA GERHARD EDUARD-FRANZ
IPC: B41J25/34
Filed: 1998-02-06
Abstract: The present invention relates to a print module (128, 130, 134) for use with a thermal printer. The print module (128, 130, 134, 132) includes a carriage (128) including fastening structure (126) for detachably fastening the carriage (128) to the printer. The carriage (128) is sized and shaped to receive print heads (130) of various sizes and geometries from any number of manufacturers. A specific print head (130) is mounted on the carriage (128) along with a source of non-volatile memory. The source of non-volatile memory contains operational values characteristic of the specific print head. The operational values can be utilized by the printer (120) to make operational adjustments that are customized with respect to the specific print head (130).
Patent CA-2280992-A1 (CA)
Inventor: KRAUS JOHN
IPC: F16L11/15
Filed: 1999-08-26
Abstract: An inventive air duct includes a blow molded tubular body of a first material having at least one annular open end, the open end terminating at a radially outwardly extending lip. A cuff of a second material is molded to the main body such that at least a portion of the lip is embedded within the cuff. Before molding the cuff, a portion of the main body adjacent the open end is pre-formed to remove any seams created during blow molding and to provide improved dimensional stability.  Thus, leak pathways are minimized. The improved dimensional stability in combination with the use of an outwardly extending lip, a portion of which is embedded within the cuff, helps promote a strong seal between the cuff and the main body.
Patent CA-2285274-A1 (CA)
Inventor: SHAMBLOTT MICHAEL JOSEPH
IPC: A61K35/12
Filed: 1998-03-31
Abstract: L'invention concerne des cellules germinales primordiales isolées à partir de tissus embryonnaires humains, tels qu'à partir des crêtes gonadiques d'embryon humain. Les cellules germinales primordiales sont mises en culture dont sont issues des cellules ressemblant à des cellules souches embryonnaires ou des cellules germinales embryonnaires de par leurs morphologies et leurs caractères pluripotants. Les cellules sont conservées plusieurs mois en culture et peuvent être manipulées génétiquement au moyen d'une technologie transgénique pour insérer du matériel génétique hétérologue.
Patent CA-2289182-A1 (CA)
Title: Apparatus and method for real-time measurement of digital print quality
Inventor: MINCKLER KEVIN M
IPC: B41J29/393
Filed: 1999-11-09
Abstract: Apparatus and method for monitoring print quality produced by a digital printing mechanism in real-time. Print quality is measured by: generating a background reflectance signal representative of the reflectance of said substrate; scanning the image to generate a post-print reflectance signal; comparing said reflectance signal with said post-print reflectance signal; and, if said post-print reflectance signal is greater than a predetermined fraction of said reflectance signal, generating an output signal indicative of poor quality. In one embodiment of the invention, the output signal is also generated if the post-print reflectance signal is less than a predetermined minimum value. In another embodiment of the invention, the print mechanism is comprised in a postage metering system and the output signal inhibits further printing. In another embodiment of the invention, the background reflectance signal is compared with the post-print reflectance signal to classify the post-print reflectance signal as being satisfactory, unsatisfactory, or doubtful; and if the post-print reflectance signal is doubtful, printing a test pattern and waiting for an operator response; and then if the operator response indicates said test pattern is acceptable, accepting the indicia; and if the operator response indicates the test pattern is unacceptable, rejecting the indicia; and if the operator response indicates the test pattern is acceptable, adjusting the comparison to classify a greater portion of post-print reflectance signals as satisfactory; and if the operator response indicates the test pattern is unacceptable, adjusting the comparison to classify a greater portion of post-print reflectance signals as unsatisfactory.
Patent CA-2290663-A1 (CA)
Inventor: GICK WILHELM
IPC: C08K5/10
Filed: 1998-05-16
Abstract: The invention relates to an improved method for producing ester plasticizers by reacting di- or polycarboxylic acids or their anhydrides with alcohols in the presence of metal catalysts.
Patent CA-2292168-A1 (CA)
Title: Disposable diaper
Inventor: OTSUBO TOSHIFUMI
IPC: A61F13/551
Filed: 1999-12-14
Abstract: A disposable diaper includes transversely opposite side edge regions thereof and the side edge regions are folded to form pleats 18, 18 each presenting a Z-shaped cross section and an body waste disposal sheet 2 is bonded along its transversely opposite side edge regions to upper surfaces of the pleats 18, 18 so that the disposal sheet 2 may be separated from the diaper as the transversely opposite side edge regions of the diaper are held and bilaterally pulled by a person having charge of body waste disposal with his or her hands.
Patent CA-2294030-A1 (CA)
Title: A thin film denture reliner bonding aid and a process of securing dentures in the oral cavity
Inventor: KARLESKINT ELIZABETH A
IPC: A61C13/07
Filed: 1998-06-11
Abstract: This invention is a process for bonding a denture (1, 10) to the tissue surfaces of the jaw over which the denture is superimposed during use. This comprises the steps of providing at the interface of the denture and the jaw's tissues a liquid irreversible hydrocolloid of an alginate dental impression formulation (5, 15); applying pressure to the denture so that it presses into the tissue surfaces, causing the liquid hydrocolloid to flow within such interface; and allowing the hydrocolloid to solidify within the interface. Also described is a novel relatively thin film, setting hydrocolloid denture aid, the set, and the cushiony thin film denture aid obtained from it.
Patent CA-2294437-A1 (CA)
Title: Fender having element conforming to mounting bracket
Inventor: LAMBERTUS JAMES
IPC: B62D25/16
Filed: 2000-01-05
Abstract: A fender includes at least one element extending therefrom that is adapted to engage a mounting bracket affixed to the object to which the fender is to be attached, e.g., a trailer. The element is preferably a curved flange that extends outwardly from an inner bottom edge of the fender.
Patent CA-2295442-A1 (CA)
Inventor: YEAZELL BRUCE ALBERT
IPC: D06F43/00
Filed: 1998-06-12
Abstract: Articles especially adapted for in-home dry cleaning comprise a carrier sheet which is impregnated with a cleaning composition. The articles are designed to be rolled for packaging, and to be unrolled for use. Rolling the articles help maintain them in an open configuration especially during use in a hot-air clothes dryer.
Patent CA-2297923-A1 (CA)
Inventor: GUTTERER BEATE
IPC: A61P37/08
Filed: 1998-07-18
Abstract: L'invention concerne des composés représentés par la formule (I), dans laquelle R1, R2, R3, R31, R4, R5, R51 et R6 ont les significations indiquées dans le descriptif. Ces composés sont de nouveaux thérapeutiques bronchiques efficaces.
Patent CA-2302625-A1 (CA)
Title: Jouet
Inventor: GRIFFIN SIMON RICHARD
IPC: A63H33/18
Filed: 1998-08-14
Abstract: Jouet servant au jeu classique désigné "conker" et possédant une partie corps principale qu'on attache à un fil (33), cette partie corps comportant au moins une pièce encastrée (23, 24, 25) qu'il est possible de dégager sous l'effet d'un choc.
Patent CA-2302886-A1 (CA)
Inventor: KUGELMANN HEINRICH
IPC: A61K47/26
Filed: 2000-03-29
Abstract: An aqueous solution of EM 12 is described which is suitable as a parenteral form of application, particularly as an intravenous form of application of EM 12 for the therapy of immunological and haematological-ontological diseases, and a method of producing the corresponding solution of EM 12 is also described.
Patent CA-2303018-A1 (CA)
Inventor: STIFTER GREGORY F
IPC: G09F3/10
Filed: 1998-02-04
Abstract: A web of sheet (80) material has a plurality of longitudinal rows of indicia patterns (98) printed on a front face (90) thereon, with the indicia patterns all aligned on the web in common readability orientation. On its back face (92), the web has a plurality of longitudinally disposed patterns of repositionable pressure sensitive adhesive thereon, with the adhesive patterns being oriented in registration with the rows of indicia patterns. Longitudinal severing of the web thus results in a plurality of identical web strips. Lateral severing of the web strips results in a plurality of identical note sheets, each note sheet bearing one of the indicia patterns on its front face and a pattern of repositionable pressure sensitive adhesive on its back face. The note sheets are applied in registration to an advertising piece to create a promotional assembly. In this process, unique intermediate rolls (116) of the web and web strips are developed. The web strips are provided in linerless form, or may be carried on a liner sheet for further processing and application to an advertising piece.
Patent CA-2303324-A1 (CA)
Title: Method and apparatus for encoding and decoding a bit sequence for transmission over pots wiring
Inventor: WEBBER HAROLD H JR
IPC: H04L25/49
Filed: 1998-07-09
Abstract: A method and apparatus for encoding a bit sequence as a symbol, suitable for transmission over pots wiring (14), are described. The symbol has a duration indicative of the bit sequence, this time duration be determined by first and second delimiters (92A) and (92B) respectively.      The method commences upon the receipt of a bit sequence at an encoder (46A) thereafter, a symbol, having a duration indicative of the bit sequence, is identified.      The symbol is characterized in that it includes a buffer portion (50A) and an encoding portion (46A). The buffer portion (50A) is of sufficient duration to allow reflections, generated by propagation of the first delimiter (92A) of the symbol on the pots wiring (14), to decay to a predetermined level before propagation of the second delimiter (92B).
Patent CA-2303979-A1 (CA)
Inventor: SCHIPPER JOHN F
IPC: H01L21/00
Filed: 1998-09-22
Abstract: A system (11) for drying and/or cleaning a workpiece (17A), such as an electronic part, semiconductor wafer, printed circuit board or the like. As the workpiece is withdrawn from a processing or rinsing liquid (13), a selected drying and/or cleaning liquid, such as hydrofluoroether (HFE), an ethylated hydrofluoroether or an azeotrope of a hydrofluoroether or ethylated hydrofluoroether, that has a very small surface tension, is volatile, and has a density much greater than the processing liquid density, is sprayed on, dribbled on, or otherwise transferred to an exposed surface of the workpiece. The workpiece can be dried in 7-45 seconds, or less, in most situations and can be cleaned using the invention. Drying and/or cleaning can be performed in a single workpiece process, a single workpiece, continuous process, or a batch process.
Patent CA-2305209-A1 (CA)
Inventor: ERIKSSON HAKAN
IPC: H04B17/00
Filed: 1998-09-22
Abstract: An operation and maintenance communications link (40) is established between an antenna near parts component (18) and transmitter and receiver (12) of a transceiver site assembly. The transmitter and receiver are connected to a remote antenna (14) by means of a radio frequency feeder (16) supporting a plurality of communications channels. A radio transceiver (42) is connected to the antenna near parts component. A communications connection comprising the operation and maintenance communications link (40 (1)) is established between the radio frequency transceiver and the transmitter and receiver over the radio frequency feeder connected to the antenna using a selected one of the supported communications channels. Another implementation further utilizes an air interface connection (40 (2)) supporting the selected communications channel to provide the operation and maintenance communications link.
Patent CA-2308360-A1 (CA)
Title: Material advance tracking system
Inventor: RICH LEONARD G
IPC: B65H23/04
Filed: 2000-05-12
Abstract: The friction drive system (10) for printing, plotting or cutting graphic images on strip material (12) includes a feedback for a drive motor (40) driving a plurality of friction wheels (34, 36) for advancing strip material (12) in a longitudinal direction. The feedback signal comprises a short-term response component and a long-term response component to accurately pinpoint the exact longitudinal location of the strip material (12). The short-term response component is generated by comparing a motor encoder signal from a motor encoder (44) secured to the drive motor (40) with a commanded longitudinal position of the strip material (12) and passing the resultant differential error signal through an all pass filter (78). The long-term response component is generated by comparing a detecting encoder signal from a detecting encoder (54) secured to a device detecting the actual longitudinal position of the strip material (12) with the commanded longitudinal position of the strip material (12) and passing the differential error signal through a low pass filter (76).
Patent CA-2308420-A1 (CA)
Title: Pipe refractory insulation for furnaces
Inventor: LENZ KEVIN
IPC: F27D1/04
Filed: 1999-09-22
Abstract: Water-cooled pipes (16, 18) of the type utilized to support steel workpieces in reheat furnaces and the like are insulated by preformed, rigid refractory members (30).      Threaded studs (40) are welded to opposing surfaces of the pipe (16, 18) or the web (20) between a pair of pipes. The pipe(s) are then covered by a ceramic fiber blanket (44). A pair of the refractory members, each of which contains an aperture (46) through which one of the studs is received, is positioned so as to cover the pipes) and blanket. Nuts (50) are fastened to the studs to hold the refractory members in place. The refractory members are sized and positioned so that gaps exist between them so as to allow for thermal expansion.      These gaps may be filled with blanket insulation or heat-resistant plastic. The remaining portions of the apertures are also filled with heat resistant plastic.