baber/WOPTO huggingface dataset:
Patent CA-2163944-A1 (CA)
Inventor: VAN ERDEN DONALD L
IPC: B29C55/06
Filed: 1995-11-28
Abstract: An apparatus and method for producing an oriented plastic strap having a predetermined desired thickness for use in connection with the strapping of packages or the like, is disclosed. A sheet workpiece is conducted into a nipdefined between a pair of milling and stretching rollers wherein one of the rollers is rotated at a lineal surface velocity which is greater than the lineal surfacevelocity of the other roller and the rollers are rotated in opposite directions. One of the rollers effectively brakes or retards one of the surfaces of the sheet workpiece while the other one of the rollers effectively accelerates the other one of the surfaces of the sheet workpiece as the workpiece passes through the nip defined between the rollers whereby the workpiece is simultaneously milled and stretched. Additional heating is provided in connection with the surface of the sheet workpiece which is exposed to the ambient air prior to entry of the workpiece into the nip defined between the pair of rollers such that both surfaces will have similar temperature levels so as to exhibit similar density properties and still further, the edge portions of the sheet workpiece are also heated so as toadvantageously control the degree of flatness of the sheet material or workpieceacross the width thereof. The flatness quality of the sheet workpiece can also be achieved through means of specially contoured milling rollers defining the zero gap assembly nip, or by means of specially contoured extrusion dies, whereby the edge portions are rendered thinner as compared to the central portion of the sheet workpiece such that upon milling and stretching of the workpiece, which operations tend to thicken the edge portions of the sheet workpiece, the edge portions will exhibit thickness dimensions commensurate with the thickness dimension of the central portion of the sheet workpiece.
Patent CA-2164025-A1 (CA)
Title: Sub-band signal processor
Inventor: SHAW DAVID GOODWIN
IPC: G10L19/02
Filed: 1995-11-29
Abstract: Delay in subband processing of audio systems is substantially reduced by employing minimum phase filers in both the analysis and synthesis filter banks. This is possible because it was recognized that the human auditory system is relatively insensitive to phase distortion in the processed audio signals. The use of the minimum phase filters in both the analysis and synthesis filter banks allows finer separation of the subband frequencies than might ordinarily be acceptable with linear phase filters and possibly the added benefit of reduced processing requirements. A specific example of using minimum phase filters in a subband echo canceler is given.
Patent CA-2164955-A1 (CA)
Title: Method for treating hyperkeratosis and diseases mediated by proteases
Inventor: SHARPE RICHARD J
IPC: C07C327/34
Filed: 1994-06-20
Abstract: A method for the topical or systemic treatment of hyperkeratosis or disorders mediated by proteases that includes the administration of an effective amount of N-acetylcysteine or a pharmaceutically acceptable salt or derivative thereof, and preferably, a lipophilic thioester or thioether of N-acetyl cysteine. In an alternative embodiment, the invention is a method for the treatment of inflammatory conditions or conditions that benefit from immunosuppression that includes the administration of an effective amount of a lipophilic thioester or thioether of N-acetyl cysteine.
Patent CA-2165706-A1 (CA)
Title: Device for removing a set of teat cups
Inventor: KOESTER LUDGER
IPC: A01J5/017
Filed: 1995-12-20
Abstract: A device for removing a set of teat cups from a dairy animal. The device includes a piston-and-cylinder mechanism. The cylinder is attached to the teat-cup set (1) by a cord secured to the piston. The device is intended for use in a milking parlor where the teat cups are removed through the animal's hind legs after milking. The object is to prevent the milker from being impeded in his duties by the teat cups when they are not being used. The cord (2) is provided with a guide (6) that can be shifted by mechanical controls (4) out of an active position wherein the cups can be removed along a vertical plane X exactly between the animal's hind legs and into an inactive position horizontally remote therefrom and from the milker's head.
Patent CA-2169635-A1 (CA)
Inventor: CARSON DENNIS A
IPC: C07K14/54
Filed: 1994-08-25
Abstract: The invention encompasses methods of introducing biologically active peptides into a host (particularly for vaccination or transitory expression of a therapeutic peptide) or administration of polynucleotides which operatively encode for the peptide. In most embodiments, the polynucleotides are naked in the sense that they are neither complexed to colloidal preparations such as liposomes or associated with a genomic integrating vector. In one embodiment, the naked polynucleotides are administered to host tissues which have a high concentration of antigen presenting cells in them relative to other host tissues. It is believed that the polynucleotides are taken up and expressed locally, systemically and/or at locations remote from their point of entry in the host. In another embodiment, the polynucleotides express peptides which are effective in retarding, treating and preventing age-associated illnesses and loss of disease resistance in mammals. In this embodiment, subtherapeutic levels of the peptides are expressed at appropriate stages of the host's development. Devices and compositions for use in the methods of the invention are also described.
Patent CA-2169808-A1 (CA)
Title: Single horizontal wellbore process for the in-situ extraction of viscous oil by steam stimulation
Inventor: LESAGE ROBERT P
IPC: E21B43/30
Filed: 1996-02-19
Abstract: Disclosed is a method for recovering highly viscous oil from a formation penetrated by a single horizontal wellbore using steam stimulation.  A wellbore is drilled into the formation comprising a substantially vertical section and a substantially horizontal section.  The vertical section of the wellbore is completed with a casing and a production tubing that extends from the surface to the beginning of the horizontal wellbore.  The horizontal section of the wellbore is completed with a slotted lined and the entire wellbore is completed with an injection tubing that extends from the surface to the far end of the horizontal wellbore.  After the wellbore is completed, steam is circulated in and out the horizontal wellbore at a pressure below the formation's fracture pressure to heat the formation surrounding the horizontal wellbore by transient conduction and steam-lift fluids from the horizontal wellbore.  Circulation of the steam is continued until the temperature of the horizontal wellbore reaches the saturation temperature of steam at horizontal wellbore pressure.  Thereafter, a slug of steam is injected into the horizontal wellbore below fracture pressure followed by a short soak period.  The well is then flowed back until the amount of produced fluids substantially decline.  Steam circulation is resumed and steam-lifted fluids including oil are recovered until the oil recovery is unfavorable. The sequence of steam slug injection, soak period, flow back and steam circulation is repeated for a plurality of cycles until the rate of oil is then favorable.
Patent CA-2173132-A1 (CA)
Title: Skin material having plurality of minute recesses and projections in and on its surface, method of manufacturing the same, and method of manufacturing molded products using the same skin material
Inventor: MIYAKE AKITAKA
IPC: B29C48/08
Filed: 1994-07-29
Abstract: A composition containing thermoplastic elastomer and elastic fine particles is extruded into a sheet-like shape from an extruder. Then, by expanding this sheet-like shape member, a covering sheet having minute unevenness attributable to the elastic fine particles formed on the surface is produced. The covering sheet may have an adhesive layer, a substrate layer, a foamed resin layer, etc., on the opposite side to the surface having a matt feeling. Such covering sheet can be produced with good productivity without creating environmental problems such as a problem related to solvent, etc. By molding using the covering sheet, a molding having matt feeling can be obtained.
Patent CA-2174257-A1 (CA)
Title: R/c aircraft hanger
Inventor: MANN WILLIAM D
IPC: A63H33/42
Filed: 1996-04-16
Abstract: In the industry of remote control aircrafts it is a common problem to safely and effectively store these very large models when not flying them.  In most instances these model aircrafts wings have to be removed enabling them to be stored in a closet or on a shelf.  Their very fragile construction make them vulnerable to punctures and breakage from children, pets and unforseen impacts from other objects.  In this invention a metal hanger is affixed to a ceiling extending down and bent as to cradle the aircrafts wings, one on either side of the fuselage.  The bracket is welded together with a hole at the top as to allow the bracket to be screwed securely to a ceiling.
Patent CA-2178697-A1 (CA)
Inventor: LARSSON KENNETH
IPC: B27B33/20
Filed: 1996-06-10
Abstract: The invention is meant for a cant forming arrangement of the kind with at least two rotational chipping heads with a basic cut off conical form where they each have a basic conical main surface and a small end, whereby the chipping heads are arranged in pairs with the small ends turned opposing one another and equipped with replaceable knives which are arranged on the respective chipping head's main face with the purpose to surface a log on two opposing sides, through length feeding of a log between the chipping heads, while they are rotating, and that the wood which is removed is made directly to chips by the knives. A single knife in at least one spiral set of cutting knives closest to the chipping head's small end, shows a main angled cutting edge which, besides that it in a known way extends substantially parallel with a rotational plane to the chipping heads, is angled 10 to 50 degrees back in relation to a radius through the rotation center and the chipping heads, in such a way that an outer, from the rotational center furthest away end of the main cutting edge is located further back towards the rotational direction in relation to an inner, closer to the rotational center located end of the cutting edge.
Patent CA-2178813-A1 (CA)
Inventor: GUSTAFSSON PER
IPC: E21B4/14
Filed: 1994-12-13
Abstract: A hydraulic impact motor in the form of a water driven in-hole rock drilling machine has a valve spool (40) that has two equally big and opposite directed control surfaces (A1 and A2). The valve has also a third control surface (A3) which is smaller than the other two and which continuously under pressure.  The third control surface (A3) acts in the same direction as the second control surface (A2). When the first control surface (A1) is under pressure but the second control surface (A2) is not, then the valve is moved in one direction, and when the first and second control surfaces (A1 and A2) is under equal pressure (full pressure or no pressure), then the valve is moved in the other direction by the third control surface (A3).
Patent CA-2179422-A1 (CA)
Inventor: EHRLICH MARIKA
IPC: A61K31/565
Filed: 1994-11-24
Abstract: Agents pour la contraception hormonale et/ou pour le traitement de l'acné, comprenant deux composants hormonaux préparés à part et séparés l'un de l'autre dans une unité d'emballage, destinés à être administrés séquentiellement, constitués chacun par une pluralité de doses quotidiennes hormonales disposées dans l'unité d'emballage, séparément les unes des autres et prélevables individuellement. Un premier desdits composants hormonaux renferme sensiblement exclusivement, comme substance active, une préparation oestrogène provoquant un empêchement de la maturation folliculaire, le deuxième des composants hormonaux renfermant, par contre, en combinaison, une préparation oestrogène et une préparation progestative en au moins une dose suffisante pour la mise au repos de l'ovaire, le nombre total de doses quotidiennes hormonales étant égal au nombre total de jours du cycle souhaité, c'est-à-dire 5 à 14 doses quotidiennes du premier composant hormonal comprenant 23 à 14 doses quotidiennes du deuxième, le nombre de doses quotidiennes du premier composant hormonal étant plus faible que le nombre de doses quotidiennes du deuxième composant hormonal. Lesdits agents se caractérisent en ce que la disposition des doses quotidiennes dans l'unité d'emballage est telle que les doses quotidiennes du deuxième composant hormonal sont propres à être absorbées en premier, les doses quotidiennes du deuxième composant hormonal ne renfermant pas d'oestrogène biogénique combiné à un oestrogène synthétique.
Patent CA-2181622-A1 (CA)
Title: Method for producing efflorescence resistant coating on cementitious substrate
Inventor: HSU OSCAR HSIEN-HSIANG
IPC: C04B41/63
Filed: 1996-07-19
Abstract: The present invention is directed to producing an efflorescence resistant sealer coating on a cementitious substrate, such as, a roof tile. A foamed layer of an efflorescence resistant coating composition is preferably applied on the surface of a wet cementitious substrate. The wet cementitious substrate is then hydrated to produce the cementitious substrate having the efflorescence resistant coating thereon. If desired, the efflorescence resistant coating composition is provided with a pigment to produce a pigmented efflorescence resistant coating on the cementitious substrate or a clear efflorescence resistant coating of the presentinvention may be applied over pigmented cementitious substrate. The efflorescence resistant coating produced in accordance with the process of the present invention substantially reduces the formation of esthetically unpleasantefflorescent layer on cementitious substrate surfaces.
Patent CA-2183481-A1 (CA)
Title: High-pressure discharge lamp
Inventor: RADEMACHER ALBERT
IPC: H01J61/073
Filed: 1996-08-16
Abstract: The invention concerns high-pressure discharge lamps, whose electrodes have a sintered compact (5) containing lanthanum oxide acting as an electron emitter, and this compact is surrounded by an electrode coil (6). Sintered compact (5) contains at least 90 weight % lanthanum oxide. In this way, a high thermal stability of sintered compact (5) and a good ignition performance of the lamp are assured with only negligible blackening of the discharge vessel over the service life of the lamp.
Patent CA-2185013-A1 (CA)
Title: Hot chamber castable zinc alloy
Inventor: COSTER LAURENT R A G
IPC: C22C18/04
Filed: 1995-07-12
Abstract: The alloy contains, in % by weight: a) either 15-20 Al and 8-10 Cu, or 25-30 Al and 15-20 Cu; and b) 0.01-2 Si, 0-0.1 Mg, 0-0.5 Ti, 0-0.5 Cr, 0-1 Mn, 0-0.5 Nb and 0-0.1 of a rare-earth metal or metal mixture, the remainder being zinc.      This alloy has a good creep resistance and an excellent tensile strength when it contains 15-20 Al and 8-10 Cu and an excellent creep resistance and a good tensile strength when it contains 25-30 Al and 15-20 Cu.
Patent CA-2185591-A1 (CA)
Inventor: JANKOWITZ CHARLES M
IPC: H04M15/00
Filed: 1996-09-16
Abstract: Prior to completing a telephone call, a database is accessed within a telecommunications network to determine whether the call should be completed. The billing number to which the call is to be charged is compared to a customer record assigned to the billing number and stored in the database.          The customer record is checked against a treatment category code which combines geographic call restrictions and thresholding. A call may be identified as potentially fraudulent and blocked if the customer record associated with the billing number indicates that the account is in arrears. In addition, at predetermined intervals during the progress of the call and at the end of each allowed call to be charged to that billing number, the time and/or cost of each call is estimated and added to the total stored in a user-defied threshold counter in the database. When the total stored in the counter exceeds a predetermined threshold limit, a potentially fraudulent call is identified. In this manner, call authorization is performed on a per call basis to prevent fraudulent telephone calls
Patent CA-2185653-A1 (CA)
Title: Stabilization of peptides and proteins for radiopharmaceutical use
Inventor: MILLER KATHLEEN M
IPC: A61K51/00
Filed: 1995-03-16
Abstract: Surfactants alone or in combination with salts are used to stabilize radiolabeled peptides and proteins contained in diagnostic or therapeutic radiopharmaceutical compositions.
Patent CA-2186684-A1 (CA)
Title: Dynamic library task switching
Inventor: GRIGSBY KENNETH B
IPC: G06F9/48
Filed: 1996-09-27
Abstract: A method for providing per-instance data memory in a particular dynamic link library loaded in a random access memory address space both as part of a first task and as part of a second task loaded in the address space simultaneously, in a computer having memory management hardware including a local descriptor table to map selectors to base addresses. The method includes providing a task switch enhancer DLL (the TSE); providing in the TSE a DLL registration routine to register a DLL with the TSE; providing in the particular DLL a call to the DLL registration routine; providing in the TSE a task registration routine to register a task with the TSE; providing in the first task and in the second task a call to the task registration routine; providing a routine requesting the operating system to provide a switching notification whenever execution of any task is about to begin or end and whenever any task is about to cease to exist; providing in the TSE a segment allocation routine for allocating a memory segment for storing per-instance data of a DLL for a task as a substitute for an original per-instance data segment for that task, and maintaining a substitute base address being a base address for the allocated segment in the LDT entry and maintaining an original base address being the original base address of the original segment in the LDT entry; calling the TSE segment allocation routine for a per-instance data segment of the particular DLL for the first task during initialization of the first task and calling the TSE segment allocation routine for a per-instance data segment of the particular DLL for the second task during initialization of the second task; providing in the TSE a base address setup routine to store in the LDT entry the substitute base address of a per-instance segment of a task before that task begins execution; and invoking the base address setup routine for the substitute base address for the first task in response to a switching notification received by the TSE that the first task is about to begin execution.   49357.P11
Patent CA-2192644-A1 (CA)
Title: Tri-substituted phenyl derivatives useful as pde iv inhibitors
Inventor: HEAD JOHN CLIFFORD
IPC: C07D405/00
Filed: 1995-06-22
Abstract: (see formula 1) Compounds of general formula (1) are described wherein -W- is (1) =C(Y)-where Y is a halogen atom, or an alkyl or -XR a group where X is -O-, -S(O)m-[where m is zero or an integer of value 1 or 2], or -N(R b)- where R b is a hydrogen atom or an optionally substituted alkyl group or, (2) =N; L is a -XR, [where R is an optionally substituted alkyl, alkenyl, cycloalkyl or cycloalkenyl group], -C(R11)=C(R1)(R2) or [-CH(R11)]~CH(R1)(R2) group where R11 is a hydrogen or a fluorine atom or a methyl group, and R1 and R2, which may be the same or different, is each a hydrogen or fluorine atom or an optionally substituted alkyl, alkenyl, alkynyl, alkoxy, alkylthio, -CO2 R8, [where R8 is a hydrogen atom or an optionally substituted alkyl, aralkyl, or aryl group], -CONR9R10 [where R9 and R10, which may be the same ar different are as defined for R8], -CSNR9R10, -CN  or -NO2group, or R1 and R2 together with the C atom to which they are attached are linked to form an optionally substituted cycloalkyl or cycloalkenyl group and n is zero or the integer 1; Z is (1) a group -C(R3)(R4)C(R5)(R6)(R?7) or -C(R4)=C(R5)(R6) where R3 is a hydrogen or a fluorine atom or an optionally substituted straight or branched alkyl group; R4 is a group selected from -X a L1R12 [where X a is as defined above for X, L1 is a linker group and R12 is a hydrogen atom or a cycloaliphatic, heterocycloaliphatic, or monocyclic or bicyclic aryl group optionally containing one or more heteroatoms selected from oxygen, sulphur or nitrogen atoms], -Alk1R12 [where Alk1 is an optionally substituted straight or branched alkenyl or alkynyl chain optionally containing one or more -O- or -S- atoms or -N(R b)-, carbocyclic or heteroatom-containing groups], -CH2L1R12a [where R12a is as defined for R12 but is not a hydrogen atom]; -X a R12a; or -C(X b)R12 [where X b is an oxygen or sulphur atom]; R5 is a -(CH2)p Ar group where p is zero or an integer 1, 2 or 3 and, Ar is a monocyclic or bicyclic aryl group optionally containing one or more heteroatoms selected from oxygen, sulphur or nitrogen atoms R6 is a hydrogen or a fluorine atom or an optionally substituted alkyl group; R7 is a hydrogen or a fluorine atom or an OR c group where R c is a hydrogen atom or an optionally substituted alkyl or alkenyl group, or an alkoxyalkyl, alkanoyl, formyl, carboxamido or thiocarboxamido group; or Z is (2) a group -C(R4)C(R5)(R6)(R7) where R4 is a group =CH2, or CH(L1)n-R12; and the salts, solvates, hydrates, prodrugs and N-oxides thereof. Compounds according to the invention are phosphodiesterase type IV inhibitors acid are useful in the prophylaxis and treatment of disease such as asthma where an unwanted inflammatory response or muscular spasm is present.     unwanted inflammatory response or muscular spasm is present.
Patent CA-2192905-A1 (CA)
Inventor: TRAN DUC HOANG
IPC: A47J37/08
Filed: 1996-12-13
Abstract: A toaster control circuit is disclosed for correcting for toaster cavity temperature variations that occur as a function of the time between toaster heating cycles.  This disclosed circuit produces the same toast color during consecutive cycles, regardless of variations in the interval between heating cycles.
Patent CA-2194009-A1 (CA)
Title: Probe head orientation indicator
Inventor: WYATT JOSEPH ROBERT
IPC: G01N27/90
Filed: 1996-12-24
Abstract: An apparatus for determining both the axial and angular positions of a defect in a tube wall. The apparatus includes a probe head positioned at the end of an elongated probe carrier having an imbedded orientation indicator. In the preferred embodiment, an encoder for measures the angular orientation of the probe head when facing the defect relative to the angular orientation of the carrier and a photodetector and reflective strip measure the angular orientation of the carrier relative to a known orientation. A data processor uses this data to calculate the angular orientation of the probe head and the location of the tube defect.