baber/WOPTO huggingface dataset:
Patent CA-2158761-C (CA)
Title: Method for work-hardening by rolling a component
Inventor: SEEGER HORST
IPC: B21H7/16
Filed: 1994-03-15
Granted: 2005-02-22
Abstract: The invention relates to a method for work-hardening a component (2), which has to be loaded along a loading axis (1), by rolling in a notch (3) extending approximately at right angles to the loading axis (1), which notch (3) has a minimum radius of curvature (4) which has to be determined in a cross-section parallel to the loading axis (1). The notch (3) is work-hardened by rolling along a plurality of tracks (5) adjacent to one another along the loading axis (1) and directed approximately at right angles to the loading axis (1), each track (5) covering only a part of the notch (3). Compressive internal stresses are generated which have axial components (17) and tangential components (18) relative to the loading axis (1), the axial components (17) being substantially larger than the tangential components (18). This method is particularly suitable for the work-hardening by rolling of a retention groove (3) in a root part (11) of a turbine blade (2).
Patent CA-2178329-C (CA)
Inventor: KEOGH ALAN P
IPC: A61M1/00
Filed: 1994-11-17
Granted: 2004-10-12
Abstract: The present invention is directed to a fill or overfill control for a suctio n drainage system. More particularly, the present invention is directed to overfill pro tection (40) that is associated with the shut-off valve (30) for a suction drainage system so that flow of waste fluid to the disposable waste collection container (16) is stopped at a predetermined volume which is less than the container maximum capacity. Alternatively, the present invention is directed to overfill protection (40) that activates the suction drainage shut-off valve (50) at a volume of the disposable container (16) that is a sufficient volume less than the maximum capacity to allow a waste treating material such as a germi cide and/or an absorbent to be added to the collected waste.
Patent CA-2191927-C (CA)
Inventor: WOOD RUEY E
IPC: F16C11/08
Filed: 1996-12-03
Granted: 1999-12-07
Abstract: A ball joint (12) is disclosed comprising a stamped sheet metal socket (14) and a ball end (18).  The socket (14) comprises a base portion (40) and a conical portion (38) above the base portion (40) integral with the base portion (40).  A wear tolerance compensator (44) is seated against the base portion (40).  A plastic spherical bearing (46) is contained within the socket (14) and seats against the wear tolerance compensator (44).  The ball end (18) is contained by the spherical bearing (46).  An annular metal collar (48) fits over the spherical bearing (46).  The collar (48) comprises a tapered end (82) which seats in the socket conical portion (38).  The socket (14) comprises an annular lip (32) which clamps the collar (48) and presses the collar tapered end (82) into sealing engagement with the conical portion (38), under a predetermined load, sealing the socket (14) against environmental ingress.
Patent CA-2195147-C (CA)
Title: Finial attachment arrangement for a window covering support rod
Inventor: DANIELS JAMES L
IPC: A47H1/02
Filed: 1997-01-15
Granted: 1999-09-07
Abstract: A finial support arrangement is provided for window coverings and the like, including a hollow ended support rod or tube, a support sleeve lodged within the rod, and a decorative finial supported in and by the sleeve. The finial includes a support post that is force or interference fitted into the sleeve. The sleeve, in turn, is force or interference fitted into the tube. The sleeve is made of a material that is softer than the support post and may be deformed during insertion of the post. The arrangement is particularly useful for supporting cast or wrought metal finials in rigid support tubes or rods, and alleviates the need for close tolerances on either the tube interior diameter or the support post outer diameter that would otherwise be needed to provide the desired interference fit.
Patent CA-2196511-C (CA)
Title: Joint assembly
Inventor: JACKSON RAYMOND W
IPC: F16C11/06
Filed: 1997-01-31
Granted: 2002-07-23
Abstract: A joint assembly (10) includes a metal housing which encloses a head end portion (24) of a movable stud member (22). A metal outer (30) bearing engages the head end portion (24) of the stud member (22). The outer bearing (30) has a cylindrical outer side surface (44) with a diameter which is larger than a diameter of a cylindrical inner side surface (42) of a chamber (18) in the housing (12) . The outer bearing (30) is retained against movement relative to the housing (12) by an interference fit.          During fabrication of the joint assembly (10), a spring (34) and inner bearing (32) are inserted into the housing (12). An interference fit is established between the outer bearing (30) and the housing (12) by sliding the cylindrical outer side surface (44) of the outer bearing along the cylindrical inner side surface (42) of the chamber (18) in the housing. A rim portion (58) of the housing is then deformed or swaged over the outer bearing (30) to form a lip (64) which further retains the outer bearing in the housing.
Patent CA-2197319-C (CA)
Title: Lipid analogs for treating viral infections
Inventor: KUCERA LOUIS S
IPC: A61K31/7072
Filed: 1995-08-07
Granted: 2009-01-27
Abstract: A method of treating viral infections, and in particular HIV-1, hepatitis B  virus, and herpesviruses, is disclosed. The method comprising administering to a subject in need of such treatment an infection-combating amount of a phospholipid or phospholipid derivative.
Patent CA-2198886-C (CA)
Title: Navigation information system
Inventor: MANNINGS ROBIN THOMAS
IPC: H04W88/02
Filed: 1995-09-01
Granted: 2000-12-19
Abstract: A navigation information system comprises a communications system having a fixed part (11 to 20) and at least one mobile part (1 to 10), the fixed part including a data storage and processing means (15) for identifying the location of a mobile unit, generating guidance information appropriate to that location and transmitting it to the mobile unit. By locating most of the complexity with the service provider, in particular the navigation computer (15) and geographical database (17), the system can be readily updated and the capital cost of the in-vehicle system, which in its simplest form may be a standard cellular telephone (1), can be minimised. The user makes a request for guidance information, and the system, having determined the user's present location, then transmits instructions to the user. The user's present location can be determined by means such as a Satellite Positioning System (7).
Patent CA-2202884-C (CA)
Inventor: SCHUSTER JEFFREY A
IPC: A61M16/10
Filed: 1995-10-27
Granted: 2009-01-06
Abstract: Devices are hand held, self-contained units which are automatically actuated at the same release point in a patient's inspiratory flow cycle. Actuation of the device forces respiratory drug through a porous membrane (3) of the container (1) which membrane has pores having a diameter in the range of about 0.25 microns to 6.0 microns. The porous membrane (3) is positioned in alignment with a surface of a channel (6) through which a patient (10) inhales air. The flow profile (12) of air moving through the channel is such that the flow at the surface of the channel is less than the flow rate at the center of the channel. The membrane is designed so that it protrudes outward at all times or is made flexible so that when respiratory drug formulation (5) is forced against and through the membrane, the flexible membrane protrudes outward beyond the flow boundary layer (13) of the channel into faster moving air.
Patent CA-2209332-C (CA)
Inventor: SAVIN-PONCET SABINE
IPC: B01D53/86
Filed: 1996-10-30
Granted: 2001-05-08
Abstract: A process is provided to recover residual H2S, SO2, COS and CS2 in the tail gas from a sulphur recovery process. The tail gas is oxidized and hydrolyzed at a temperature of from 180° C. to 700° C. to provide an oxidized and hydrolyzed gas stream containing substantially no COS or CS2 and having a concentration by volume of H2S and SO2 such that the H2S concentration minus twice the SO2 concentration is from 0.25% to 0.5%. Then the gas stream from the hydrolysis is passed over a Claus catalyst, for example based on alumina and/or titanium oxide, for the reaction of H2S with SO2 to form sulphur and provide a gas stream with substantially no SO2. The resulting gas stream from the Claus reaction together with a gas containing free oxygen is then passed over an oxidation catalyst, such as one of more oxides or salts of Ni, Co, Fe, Cu, Ag, Mn, Mo, Cr, W or V, deposited on a support, such as bauxite, activated aluminia, silica, titanium oxide, zirconium oxide, zeolite or activated carbon to form sulphur and release a purified gas stream containing substantially no sulphur compounds.
Patent CA-2210536-C (CA)
Inventor: MANNING ROBERT JOHN
IPC: G02F1/35
Filed: 1996-01-16
Granted: 2000-09-26
Abstract: An optical switch includes a semiconcuctor gain medium and inputs for an optical control signal applied to the semiconductor gain medium. The switch has a pair of arms (31, 32) arranged in a Mach-Zehnder configuration. A semiconductor gain medium (SOA1, SOA2) is connected in each arm. A fixed phase shifting element PE is also connected in one arm. Control signals are applied to each of the semiconductor gain media. There is a delay between the control signals selected so that a desired one of the optical pulses experiences a differential phase shift and so we switch to a different output of the multiplexer. In one example, the semiconductor gain media are provided by discrete semiconductor devices sandwiched between a pair of planar substrates on which waveguides forming the other components of the switch are formed. The switch may be used for demultiplexing OTDM signals.
Patent CA-2221332-C (CA)
Inventor: THURMOND AMY
IPC: A61B17/12
Filed: 1996-05-21
Granted: 2009-03-17
Abstract: The invention provides intra-fallopian devices and non-surgical methods for their placement to prevent conception.  The efficacy of the device (10) is enhanced by forming the structure at least in part from copper or a copper alloy. The device (10) is anchored within the fallopian tube by imposing a secondary shape on a resilient structure, the secondary shape having a larger cross section than the fallopian tube. The resilient structure is restrained in a straight configuration and trans-cervical inserted within the fallopian tube, where it is released. The resilient structure is then restrained by the walls of the fallopian tube, imposing anchoring forces as it tries to resume the secondary shape.
Patent CA-2222108-C (CA)
Title: Wire rope damage index monitoring device
Inventor: HAMELIN MICHEL
IPC: G01N27/82
Filed: 1997-11-25
Granted: 2002-02-05
Abstract: The present invention is concerned with a wire rope damage index monitoring device. In order to inspect the condition of the wire rope, the latter is passed through the monitoring device, and a damage index thereof is given to the user in a hand-held display means. One of the great advantage of the present monitoring device is that no interpretation is required by the user.
Patent CA-2223982-C (CA)
Inventor: BAUM KEVIN
IPC: H04B7/005
Filed: 1997-04-11
Granted: 2002-08-06
Abstract: The present invention provides a system for a method, system (300), subscrib er unit (320, 330), and base/headend unit (310) for a bandwidth efficient multiple user digital communication system (300) that facilitates multiple user reverse link communication using overlapped transmit signal spectra of at least two overlap bandwidth subscriber units (320, 330). Overlap bandwidth subscriber units (320, 330) receive a forward link signal, each deriving a frequency reference from the forward link signal and a symbol timing referen ce from the forward link signal, and transmitting a reverse link signal to the base/headend unit (310) that receives a composite reverse link signal of the  reverse link signals. Each reverse link signal includes at least one modulat ed data carrier with distinct carrier frequencies. Each transmitted reverse lin k signal has a symbol timing responsive to the symbol timing reference, and th e frequency spectra of the reverse link signals overlap using overlapped transmit signal spectra of at least two overlap bandwidth subscriber units (320, 330).
Patent CA-2228278-C (CA)
Inventor: JOHNSON ROBERT WILLIAM
IPC: C09D17/00
Filed: 1996-07-31
Granted: 2001-12-04
Abstract: A process for enhancing the optical efficiency of TiO2 slurries starting fro m base TiO2 particles having less than about 65 weight % particles, greater th an 0.6 microns, and shear processing a slurry at a solid content of at least 83  % by weight.
Patent CA-2228345-C (CA)
Inventor: BEAUDOIN RICHARD
IPC: B62K27/12
Filed: 1998-02-26
Granted: 2005-02-15
Abstract: A bicycle trailer hitch is disclosed, for attaching a forward arm of a bicycle trailer to a rear frame of a bicycle.      The bicycle trailer hitch comprises a base mounting plate having two discs provided with grooves to position respectively the chain stay and the seat stay of a bicycle rear frame. A side plate covers and squeezes the chain stay and the seat stay against the base mounting plate under the action of tightening means which comprise a releasable-adjustable fastener coupled between the base mounting plate and the side plate. The base mounting elate is provided with flexible connecting means to link the forward arm of the trailer. The bicycle trailer hitch is easy and quick to install and release, and allows a firm and secure attachment.
Patent CA-2236185-C (CA)
Title: Integrated solid electrolyte ionic conductor separator-cooler
Inventor: PRASAD RAVI
IPC: C01B13/02
Filed: 1998-04-28
Granted: 2002-02-19
Abstract: A process for producing an oxygen gas stream, an oxygen-enriched gas stream, or a reaction product stream as a permeate stream and an oxygen-depleted retentate gas stream by first separating oxygen from a feed gas stream and thereafter cooling at least the permeate stream.  The production and cooling of the permeate stream occurs within a single apparatus having at least one ion transport membrane.
Patent CA-2241630-C (CA)
Inventor: BURGESS LESLIE
IPC: C07C43/12
Filed: 1996-12-06
Granted: 2006-10-24
Abstract: Process for producing Sevoflurane anaesthetic which comprises reacting hexafluoroisopropyl alcohol with essentially pure bis(fluoromethyl)ether. The bis(fluoromethyl)ether is preferably obtained by the reaction of formaldehyde with hydrogen fluoride.
Patent CA-2243166-C (CA)
Title: Ring type recliner
Inventor: WILSTERMANN WILLIAM D
IPC: B60N2/90
Filed: 1998-07-15
Granted: 2006-02-07
Abstract: The present invention is a recliner assembly for hingedly connecting a seat back and a seat cushion. The recliner assembly has a base plate mounted to the seat cushion, an arm mounted to the seat back and a locking mechanism for locking the seat back in one of a range of seat back positions and selectively releasing the seat back for adjustment of the seat back relative to the seat cushion and dumping the seat forwardly providing access rearward of the seat cushion. The base plate has a circular cavity with an inner circumference lined with teeth. The arm is mounted to the seat back and pivotally engages the base plate for sliding relative movement thereto for forward and rearward pivotal movement of the seat back. The arm has a circular cavity with an inner circumference lined with teeth and is coaxially mounted in a face to face manner with the circular cavity of the base plate. The locking mechanism has a plurality of pawl, a camming member and an actuator. The pawls are pivotally connected to the base plate and movable between an engaged position where the pawls lockably engage the teeth of both the base plate and the arm and a disengaged position where the pawls are disengaged therefrom. The camming member is rotatably mounted between the base plate and the arm and is rotatable in a first sense engaging the plurality of pawls urging the pawls to the disengaged position and rotatable in an opposite sense engaging the plurality of pawls urging the pawls to the engaged position. The actuator operatively engages the camming member for effecting the rotatable movement of the camming member to selectively lock and release the recliner assembly.
Patent CA-2245440-C (CA)
Title: Installation system for stacked appliances
Inventor: WUNDERLICH DANIEL F
IPC: D06F29/00
Filed: 1998-08-21
Granted: 2004-08-10
Abstract: An improved installation system for a stacked washer and dryer appliance assembly having an exhaust vent and a gas system is provided. The exhaust vent system includes an exhaust bracket extending upwardly from the back of the washer. The exhaust bracket is adapted to be connected to a household exhaust duct, with the exhaust pipe of the dryer being automatically sealingly engaged with the exhaust bracket upon positioning of the dryer on the washer. The gas system includes a gas pipe in the washer, and having a rearward end extending out of the back of the washer for connection to a gas source. The forward end of the gas pipe has a shutoff valve, which is adapted to be connected to a gas line operatively mounted in the dryer. All of the connections for the power, water, exhaust, and gas for the stacked appliances can be quickly and easily made, without having to stand behind the appliance assembly after the dryer is mounted on the washer.
Patent CA-2250364-C (CA)
Title: Process for treating water-containing natural gas wells & natural gas storage wells
Inventor: MAYER HANS
IPC: C09K8/88
Filed: 1998-10-15
Granted: 2004-03-30
Abstract: The gas flow in water-containing natural gas wells and natural gas storage wells is improved if a homogeneous phase comprising a water-repellent, solvolysis-resistant active compound is injected into the water-bearing rock.
Patent CA-2253736-C (CA)
Inventor: SQUIRES MERYL
IPC: A61K9/14
Filed: 1997-03-12
Granted: 2006-11-21
Abstract: An improved medical treatment and medicine is provided to quickly and safely resolve herpes and other microbial infections. The inexpensive user-friendly medicine can be applied and maintained on the infected region until the physical symptoms of the disease disappears and the patient is comfortable and has a normal appearance. The attractive medicine comprises an antimicrobial concentrate comprising microbe inhibitors, phytochemicals or isolates. Desirably, the effective medicine comprises a surfactant and an aqueous carrier or solvent. In the preferred form, the medicine comprises Echinacea phytochemicals and benzalkonium chloride in a sterile water solution.
Patent CA-2260052-C (CA)
Title: Bearing arrangement
Inventor: LEIJONBERG GUNNAR
IPC: F16H25/14
Filed: 1997-07-10
Granted: 2006-09-19
Abstract: The present invention is for a bearing arrangement by a device for transmission of power where linear motion is transmitted into rotating motion. The bearing means at the cam disc machine according to the invention is made so that the rotating cam disc is enclosed by a stationary housing whereby bearing between the stationary and rotating parts is arranged only on one side of the cylinder bore and in connection to the outgoing shaft.
Patent CA-2260096-C (CA)
Inventor: KEIL ELINOR B
IPC: D04H3/04
Filed: 1997-08-22
Granted: 2003-06-03
Abstract: Methods for orienting fibers and an apparatus for orienting fibers are provided for the fabrication of improved thin abrasive wheels utilizing uniform non-woven fiber reinforcement discs. The wheels are more resistant to hub push-out failure during grinding than wheels reinforced with woven fiber cloth.
Patent CA-2263118-C (CA)
Inventor: SULLIVAN HENRY W
IPC: C08K7/28
Filed: 1997-08-11
Granted: 2007-01-16
Abstract: L'invention concerne des composites polymères qui peuvent être formés pour donner des articles de construction pouvant remplacer des articles similaires en bois et béton. Lesdits composites comprennent un composant polymère contenant les éléments suivants: des polyoléfines, obtenues de préférence à partir de déchets ou de produits recyclés; un composant polymère caoutchouteux obtenu de préférence à partir de pneus mis au rebut; et une charge de renforcement contenant du mica. Le mica est de préférence expansé afin que la densité desdits composites soit inférieure à celle de composites similaires contenant du mica classique. L'évaporation des composés volatils contenus initialement dans les différents composants - surtout le composant polymère caoutchouteux -, permet la fabrication d'articles de construction ayant un noyau intérieur en mousse alvéolaire dont la structure n'a pas été obtenue par l'action d'agents d'expansion classiques émettant du CO2. L'invention concerne également des procédés de formation d'articles de construction, qui comprennent des techniques d'extrusion et de moulage.
Patent CA-2270861-C (CA)
Title: Acetabular cup assembly with selected bearing
Inventor: DONG NICHOLAS N G
IPC: A61F2/34
Filed: 1999-05-05
Granted: 2006-08-29
Abstract: An acetabular cup assembly allows pre-operative or interoperative selection and securement of a bearing member within a shell member of the acetabular cup assembly, the bearing member being selected from a plurality of bearing members having different characteristics, including bearing characteristics, securement characteristics, position characteristics and orientation characteristics, so as to enable a surgeon to select those characteristics most appropriate to a particular patient, as determined by a pre-operative assessment or by an evaluation of conditions encountered at an implant site during the implant procedure, and to incorporate the desired characteristics into the acetabular cup assembly with ease and economy.
Patent CA-2272738-C (CA)
Inventor: ST JEAN RICHARD
IPC: H04M3/54
Filed: 1999-05-25
Granted: 2002-08-06
Abstract: A method for transfer of incoming calls received by an attendant comprising the steps of obtaining the caller identification of the incoming call, initiating a search on a database using the caller identification, retrievin g a list of previous call transfer destinations from the database corresponding to the caller identification, displaying the list on an attendant console contemporaneous with the incoming call, and selecting a desired transfer destination from the list on  the console thereby transferring the incoming call to the desired transfer destination.< /SDOAB>
Patent CA-2277001-C (CA)
Inventor: BANTING JOHN FREDERICK
IPC: H02H3/08
Filed: 1999-07-08
Granted: 2003-01-28
Abstract: In a power distribution system, a reliable, accurate, and energy efficient fault circuit indicator is provided through a microcomputer-based fault current indicator design. First, reliability is improved inherently because the microcomputer, and the software embedded therein, replace the functionality of numerous discrete, less reliable electronic components found in prior designs. Second, the embedded software is capable of placing the fault current indicator in one of a number of energy conservation states, without compromising the fault current indicator's ability to provide information relating to the occurrence of a fault. Finally, greater fault current indication accuracy is achieved by detecting excessive line current, followed by a significant drop in line voltage.