baber/WOPTO huggingface dataset:
Patent CA-2194023-C (CA)
Title: Channel hopping protocol
Inventor: BAKER MURRAY C
IPC: H04L69/14
Filed: 1996-12-24
Granted: 2002-04-02
Abstract: A method and means for information transmission over a medium for a wireless communication system comprising a network of stations capable of sending and receiving data transmissions over a number of communication channels is disclosed, the method includes sending a data transmission in a packet including a header and a data portion, the header includes identification (ID) of the network; identification of the next channel to be used in communications; an address; a channel busy count field; a network command.
Patent CA-2198057-C (CA)
Title: Improved endless track unit for four-tracked vehicles
Inventor: TUCKER EMMITT M
IPC: B62D55/065
Filed: 1997-02-20
Granted: 2005-08-23
Abstract: An improved system in an endless track unit of an all-terrain vehicle. A track is driven with a drive wheel that has sprocket disks drivingly engaging the track with more than two teeth from those disks drivingly engaging the track at any given time. The track is trained around the drive wheel and a plurality of undriven guide wheels. A damper wheel may sit downstream of the drive wheel between the drive wheel and the first guide wheel and supports the underside of the track. A preferred embodiment has a sprocket disk with thirteen cogs that have a generally tear-shaped cross section forming teeth of the sprocket, more than two of which drivingly engage a stretch-resistant track at any given time. The track a continuous belt formed of molded rubber with stretch-resistant chords imbedded therein. A replaceable journal liner secured within an axle journal assembly, an improved guide wheel spindle that has a shoulder forming a bearing liner, and ice scrapers positioned on the inside of the track for removing built-up debris may also be installed to further improve operation of the endless track unit.
Patent CA-2205650-C (CA)
Inventor: EL-HMAMSI MOUNIR MOHAMED
IPC: A23C17/00
Filed: 1996-01-22
Granted: 2001-03-27
Abstract: L'invention concerne un produit laitier longue conservation et un procédé amélioré pour le fabriquer. Ce produit laitier longue conservation contient une quantité substantielle de fromage à la crème naturel (au moins 55 % en poids du produit total), un liant d'eau, un agent de conservation et un acidulant. On prépare le produit laitier longue conservation en chauffant du fromage à la crème naturel à une température d'au moins 90 ~F, mais ne dépassant par 110 ~F; en mélangeant le fromage à la crème naturel avec le liant d'eau et un agent de conservation dans un récipient de mélange; en pompant ce mélange de fromage à la crème par une boucle de recyclage comprenant un mélangeur à pales multipes, tout en ajoutant des ingrédients additionnels, tels que de l'acidulant, du liant d'eau additionnel et des agents aromatisants; et en pompant ce mélange de fromage à la crème par un homogénéisateur et un refroidisseur pour obtenir un produit laitier longue conservation.
Patent CA-2209996-C (CA)
Title: Stabilized liquid fabric softener compositions
Inventor: SHAW JOHN HENRY JR
IPC: D06M13/322
Filed: 1996-01-02
Granted: 2001-08-21
Abstract: Concentrated liquid fabric softener compositions which are unstable due to phase separation are stabilized by means of water-soluble polyesters. Stable liquid compositions comprising various fabric treatment electrolytes are provided. Compositions comprising terephthalate-ethylene oxide stabilizers in fabric softener compositions comprising various chelators such as ethylenediamine disuccinate, diethylenetriamine pentaacetate and various aminophosphonates restore softness and dye colors to fabrics which have been exposed to metal cations, especially copper or nickel. Compositions comprising cellulase enzymes are also disclosed.
Patent CA-2218711-C (CA)
Title: Silencieux pourvu d'un syntoniseur a conduit
Inventor: HEROLD ANDREW J
IPC: F01N1/08
Filed: 1996-08-16
Granted: 2001-08-14
Abstract: Syntoniseur à double conduit comprenant un second conduit (135) concentrique à un premier conduit (134) qui raccorde l'écoulement du gaz à une première chambre de syntonisation (126) du volume renfermant un premier volume effectif. La différence radiale entre les premier et second conduits (134, 135) et la longueur (188) de chevauchement des premier et second conduits (134, 135) en combinaison avec le volume effectif de la première chambre de syntonisation (126) atténue une fréquence sonore présélective. Cette atténuation est prévue pour une plage de fréquences spécifiques et s'ajoute à l'atténuation globale de tout le système comprenant une pluralité de conduits raccordés en série par une chambre correspondante.
Patent CA-2220796-C (CA)
Title: Method of manufacturing a disc brake backing plate with an edge hole
Inventor: ARBESMAN RAY
IPC: F16D65/092
Filed: 1997-11-12
Granted: 2002-07-02
Abstract: A method of manufacturing a disc brake backing plate with an edge hole which comprises the steps of first forming two substantially parallel grooves on the outer surface of the backing plate to define a raised section between the grooves. A channel is then formed within the raised section to define two ridges bounding the channel. Finally, the ridges are bent toward each other to define the hole.
Patent CA-2222029-C (CA)
Inventor: WILLMING DAVID A
IPC: H04L25/03
Filed: 1997-03-31
Granted: 2002-11-19
Abstract: A data processor develops a data signal which has a plurality of multi-level  symbols. The data processor, in response to each of the symbols, determines the lowest path metric characterizing the data signal, and select one of a plurality of sets of slice values in response to the lowest path metric. A slicer (82, 82') responds to the selected set of slice values by slicing the  multi-level symbols. There may be only two sets of slice values in the plurality of sets of slice values, wherein each of the only two sets has thr ee slice levels. Alternatively, there may be only five sets of slice values in the plurality of sets of slice values, wherein each of the only five sets ha s five slice levels. As a still further alternative, there may be only two set s of slice values in the plurality of sets of slice values, wherein each of th e only two sets has a minimum of six slice levels.
Patent CA-2224594-C (CA)
Title: Procede de preparation de fibres reticluees et individualisees d'acide polycarboxylique a odeur limitee et brillance accrue
Inventor: COOK JEFFERY TODD
IPC: A61F13/472
Filed: 1996-05-30
Granted: 2002-01-08
Abstract: Ce procédé de fabrication de fibres réticulées individualisées, qui dégagent moins d'odeur, consiste à disposer de fibres cellulosiques qu'on met en contact avec une solution contenant un agent de réticulation du C2-9 acide polycarboxylique, à séparer ces fibres mécaniquement pour les rendre pratiquement individuelles, à les sécher et à faire réagir l'agent de réticulaiton avec ces fibres individualisées pour former des liaisons de réticulation intra-fibres. On met alors en contact ces fibres cellulosiques individualisées avec une solution fortement alcaline et un agent fortement oxydant pour en limiter l'odeur et en accroître la brillance. L'agent de réticulation est de préférence de l'acide citrique, à raison de 1 à 12 % en poids environ de préférence, qui réagit de façon à former des liaisons de réticulation intra-fibres. La solution alcaline est de préférence sune solution aqueuse d'hydroxyde de sodium d'environ 0,09 % en poids de préférence, calculé par rapport au poids des fibres sèches, et elle est appliquée sur les fibres réticulées. L'agent oxydant est de préférence du peroxyde d'hydrogène appliqué sur ces fibres réticulées à raison d'environ 0,04 % en poids de préférence, calculé par rapport au poids des fibres sèches. Ces fibres réticulées individualisées, à odeur limitée, s'utilisent dans diverses structures absorbantes.
Patent CA-2225231-C (CA)
Title: Tone detection using discrete fourier transform techniques
Inventor: TONG WEN
IPC: H04B17/336
Filed: 1997-12-19
Granted: 2004-03-02
Abstract: Supervisory audio tone (SAT) in a receive signal in a wireless communications system is detected using a discrete Fourier transform (DFT) supplied with samples of a filtered and decimated signal derived from the receive signal. The DFT can comprise M 2-input butterfly computation stages for computing an N-point DFT where N =  2M. Each of the stages m from 1 to M-1 determines and stores, for each current sample at the input, at most 2m intermediate results forming only a subset of intermediate results required for computation by the next stage. Each of up to 2m other intermediate results required for computation by the next stage is produced by shifting of a respective stored intermediate result of the respective subset determined in respect of an input sample preceding the current sample by 2M-m-1 samples. For example there are M = 5 stages for a 32-point DFT having 18 outputs, 6 outputs for each of three SAT frequencies.
Patent CA-2225823-C (CA)
Title: Aspheric plano eyewear
Inventor: FECTEAU KEITH
IPC: G02C7/00
Filed: 1997-04-24
Granted: 1999-09-28
Abstract: A novel plano lens and eyewear incorporating such lens is presented wherein the plano lens comprises a front surface curvature which is created by rotating an aspheric shape about an axis which is offset from an axis of the aspheric shape. In a preferred embodiment, the aspheric shape is an ellipse or at least is an aspheric shape, a segment of which has an elliptical arc. This elliptical arc is rotated about an axis spaced (offset) some distance from a major or minor axis of the ellipse. In a more preferred embodiment, the ellipse is rotated about an axis spaced from and parallel to the major or minor axis of the ellipse, but in the same plane as the ellipse. The resulting surface of this preferred lens configuration will have a cross section in a first axis which is a segment of an ellipse, and a cross section in a second axis (perpendicular to the first axis) which is a segment of a circle. A  significant feature of the preferred front lens configuration is that the surface generated is rotationally symmetric.
Patent CA-2235207-C (CA)
Inventor: SCHAEDE JOHANNES
IPC: B41F35/00
Filed: 1998-04-21
Granted: 2008-09-23
Abstract: The wiping cylinder drive has a drive shaft (4) which is independent of the wiping cylinder shaft (2) and which, at its end facing away from the wiping cylinder, is connected to the drive member (15) with the aid of a claw coupling (10). Inserted between the adjacent claws of the constantly engaged claw coupling (10) is a gearwheel (20) which is made of elastically deformable material and the teeth (21) of which are in each case inserted positively between the flanks of adjacent claws of the two coupling parts and, in the case of sudden changes in the load torque of the wiping cylinder, function as damping elements. The drive member (15) has a gearwheel (17) which is constantly in engagement kinematically with the gear leading to the main motor of the printing machine.
Patent CA-2249503-C (CA)
Inventor: HUBER JON M
IPC: B60W30/19
Filed: 1998-10-02
Granted: 2007-02-27
Abstract: A dithering torque control method that is useful for a semi-automated vehicle transmission facilitates accomplishing a desired condition in the transmission. The method is useful during an initial break torque function to relieve drive train torque so that a driver can move a manual shift lever from an engaged position to a transmission neutral position without using a clutch. The method is also useful for shifting a lever to move gearing components from a neutral position to a next desired gear. A dithering function is used to cyclically oscillate a current torque value about a target torque value that is associated with the desired transmission condition. An amplitude and period of the dithering function are determined based upon an overall gear ratio of the transmission. The dithering function begins at a point dependent on a torque value associated with the currently engaged gear.  The dithering function continues until a known transmission condition is confirmed.
Patent CA-2257908-C (CA)
Title: Pentenoic acid hydroxycarbonylation method
Inventor: BRIVET JACQUES
IPC: C07C51/14
Filed: 1997-05-29
Granted: 2004-05-18
Abstract: The invention discloses pentenoic acid hydroxycarbonylation into adipic acid. More particularly it concerns one pentenoic acid hydroxycarbonylation method involving reaction water and carbon monoxide, in presence of a catalyst comprising at least rhodium and/or iridium and an iodinated or brominated catalytic promoter. In the method, the catalyst is derived at least in part from a previous pentenoic acid hydroxycarbonylation operation. The reaction is effected in the presence of an amount of branched carboxylic diacids having 6 carbon atoms not exceeding 200 grams per kilogram of reaction mixture.
Patent CA-2258036-C (CA)
Inventor: BILLSTROM LARS AXEL
IPC: H04L9/32
Filed: 1997-06-06
Granted: 2007-05-15
Abstract: A method, and associated apparatus, of providing a communication station (12) with anonymous access to a communication network (14) to communicate data therein. Access is provided to the communication station (12) only after authenticating that the communication station is authorized to communicate in the network (14), but access is provided without individually identifying the communication station (12) to the network (14) with a permanent identifier unique to the communication station.
Patent CA-2261790-C (CA)
Inventor: STYLES ROBERT EDWARD
IPC: A61M16/06
Filed: 1997-07-16
Granted: 2004-09-14
Abstract: A nasal cushion (30) comprises a substantially triangularly shaped frame (32) from which extends a membrane (34). The frame (32) has a scalloped edge (36) by which the cushion (30) is affixed to a mask body.      The membrane (34) has an aperture (38) into which the wearer's nose is received.      The membrane (34) is spaced away from the rim (40) of the frame (32), and its outer surface (41) is of substantially the same shape as the rim (40). Respective notches (42, 44) receive the bridge of the wearer's nose. The wearer's nose is received through the aperture (38) into the chamber within the mask body (46).      The seal forming portion (45) thus contacts both the surface of the wearer's nose and a portion of the wearer's face in the region between the base of the nose and the upper lip, and around the sides and over the bridge of the nose. The shape of the seal forming portion (45) is particularly suited to effectively seal the difficult region of the facial contour that is the crease between the sides of the nose and the face.
Patent CA-2262323-C (CA)
Inventor: SATO KAZUOMI
IPC: H01R35/02
Filed: 1999-02-18
Granted: 2007-08-28
Abstract: A right-angle connector unit used for electrical and removable connection between first and second printed circuit boards (600, 700), which comprises two right-angle connectors (100, 200) of printed circuit boards having base portions to be mounted to the first and the second printed circuit boards, vertical portions, and contacts of conductor patterns extending in parallel with each other between the base portions and the vertical portions and having different lengths, and a cable connector (400) having a flexible flat cable connecting between the vertical portions of the two right-angle connectors in a state where the flexible flat cable is twisted by an angle of 180 degree along a longitudinal direction thereof, the flexible flat cable having conductors which are equal to each other in length. A plurality of signal passes established between first and second printed circuit boards by contacts of the two right-angle connectors and the conductors of the flat cable connectors are equal to each other in length. The cable connector may comprise a bundle of discrete cables, a flexible printed cable, a bundle of coaxial cables, or a bundle of drained coaxial cable instead of the flexible flat cable.
Patent CA-2262375-C (CA)
Title: Atrichia mouse
Inventor: KONDO TAIZO
IPC: C12Q1/00
Filed: 1997-07-30
Granted: 2011-06-21
Abstract: The invention relates to an atrichia mouse which grows juvenile hair but is deficient in the ability to grow pelage hair and, more particularly, to an atrichia mouse such that the spontaneous prevalence of wet and dry skin lesions is not less than 70% at the 24th week of age, the number of mast cells in the skin is not less than about 50/linear mm at the 24th week of age, and the serum IgE  level is not less than about 3500 ng/ml at the 24th week of age. The atrichia mouse of the invention finds application as an animal model of disease for the research and development of therapeutic drugs for dermatitis, among other kinds of drugs.
Patent CA-2263804-C (CA)
Inventor: FOSTER RAYMOND KEITH
IPC: B65G25/00
Filed: 1996-06-24
Granted: 2000-01-04
Abstract: A switching valve has a control rod with a pilot chamber at each of its ends.  For each pilot chamber, there is a first passageway connected to a pressure line and communicating with the pilot chamber.   A second passageway is connectable to return.  A relief valve has a valve member biased to close an orifice to close communication between the pilot chamber and the second passageway.  The valve member has an open position in which the pilot chamber is connected to return via the second passageway to allow shifting of the control rod.  In a first  embodiment,  the  pilot  chamber  is  continuously  in communication with pressure via the first passageway, and the valve  member  is  opened by  this  pressure  in  response  to connection of the second passageway to return.   In another embodiment,   the  second  passageway  is  continuously  in communication with return, and the valve member is mechanically moved into its open position by an operator in response to pressure  acting on the operator.   A four-way directional control  valve  controls  branch  conduits  leading  from  the switching valve to drive motors.
Patent CA-2264156-C (CA)
Inventor: KAMATA TSUTOMU
IPC: B01D45/08
Filed: 1998-06-17
Granted: 2004-08-31
Abstract: A gas-liquid separator includes a high-pressure air introducing port and an air discharging port provided respectively in lower and upper portions of a cylindrical container having a hollow chamber formed therein. A blow guide plate is provided in the cylindrical container and air supplied thereto from the high-pressure air introducing port collides therewith, thereby changing the flow direction of the air. A conical receiving plate has an opening formed at the center thereof in an upper portion of the hollow chamber and is provided to partition the hollow chamber into upper and lower hollow chambers, the upper hollow chamber being partitioned by the conical receiving plate which communicates with the air discharging port. A partition has a venthole formed therein and defines the upper hollow chamber and is disposed above the conical receiving plate in opposed relation, the collision surface of the blow guide plate being curved to follow an inner wall surface of the cylindrical container or inclined to widen a flow passage toward the downstream side, whereby a highly efficient gas-liquid separator is achieved.
Patent CA-2266718-C (CA)
Inventor: MEHTA HARSHVARDHAN
IPC: A61K47/48
Filed: 1997-08-08
Granted: 2007-05-22
Abstract: La présente invention concerne des composés qui sont des polysaccharides modifiés possédant des fonctions aldéhyde pendantes. Chacune des fonctions aldéhyde est attachée par une liaison à une position correspondant à un atome d'hydrogène d'un groupe hydroxyle différent de polysaccharide non modifié. L'invention concerne également un procédé permettant d'introduire une fonction amino-réactive dans une dextrane. Le procédé consiste (a) à faire réagir la dextrane avec un agent alkylateur possédant une fonction qui réagit avec un groupe hydroxyle, formant de la sorte une dextrane alkylée, l'agent alkylateur portant un groupe oléfine. Le procédé consiste ensuite (b) à traiter la dextrane alkylée de façon à convertir le groupe oléfine en fonction amino-réactive. Un tel polysaccharide peut se conjuguer à une molécule. Il suffit pour cela d'employer le procédé de l'invention et de faire réagir la fonction amino-réactive avec une fonction amine de la biomolécule pour produire du polysaccharide conjugué à la biomolécule.
Patent CA-2272245-C (CA)
Title: Stable lyophilized pharmaceutical preparations of monoclonal or polyclonal antibodies
Inventor: KALLMEYER GEORG
IPC: A61K38/00
Filed: 1997-11-19
Granted: 2013-09-10
Abstract: The invention concerns lyophilized pharmaceutical preparations of monoclonal or polyclonal antibodies which contain a sugar or an amino sugar, an amino acid and a surfactant as stabilizers. In addition the invention concerns a process for the production of this stable lyophilisate as well as the use of a sugar or amino sugar, an amino acid and a surfactant as stabilizers for therapeutic or diagnostic agents containing antibodies.
Patent CA-2274608-C (CA)
Title: Prokaryotic two-hybrid system
Inventor: KORNACKER MICHAEL G
IPC: C12Q1/6897
Filed: 1997-12-10
Granted: 2007-06-26
Abstract: A two-hybrid system that can detect homo- and heterodimeric protein interactions in E. coli and other cells. This system is useful for the same applications as a yeast two-hybrid system, i.e. interaction cloning, mapping protein interaction domains, analysing protein interactions, detecting protein interactions and detecting modulators thereof.  The invention concerns a prokaryotic host cell comprising:  a) a fusion protein having (i) a first DNA-binding domain and (ii) a first interacting domain; b) a fusion protein having (i) a second DNA-binding domain and (ii) a second interacting domain capable of binding to the first interacting domain; and c) a nucleic acid molecule having a reporter gene operatively linked to (i) a promoter, (ii) a first operator site capable of binding to the first DNA-binding domain, located upstream of the promoter, and (iii) a second operator site capable of binding the second DNA-binding domain, located downstream of the promoter of the reporter gene; wherein binding of the first interacting domain to the second interacting domain is signaled by altered expression of the reporter gene.
Patent CA-2283038-C (CA)
Inventor: MORIN ROBERT M JR
IPC: B60B39/12
Filed: 1999-09-23
Granted: 2004-08-17
Abstract: A traction device for a wheeled vehicle arranged to be laid on the ground in engagement with a tread portion of a tire to provide a traction grip to the tire. The traction device includes a U-shaped frame and a pair of claws constructed at the ends of the U-shaped frame and arranged to engage into cavities between the tire treads by a lever action on the traction device. The traction device further includes a plurality of transverse braces extending between a pair of longitudinal bars of the U-shaped frame, each transverse brace having a pair of traction cleats extending downwardly to engage with the ground and to elevate the traction device from ground in some measure.   One of the transverse braces is positioned at a region near a forward end of the U-shaped frame so that the corresponding pair of traction cleats maintain the device in a level attitude, prevent a lever action from being created, and prevent the U-shaped frame from tilting or projecting upwardly which may cause injury or property damage as the vehicle passes over the forward end of the device.