baber/WOPTO huggingface dataset:
Patent CA-2194541-C (CA)
Inventor: PRAIN KENNETH ALEXANDER ROBERT
IPC: G01V5/06
Filed: 1996-05-09
Granted: 2000-10-03
Abstract: A gamma ray detector and measurement device which comprises: a generally elongate housing (11); a scintillator module (12) movably mounted in said housing (11) and arranged to respond to the presence of gamma rays in the local environment in which the device is located and which rays pass through the wall (13) of the housing and into the scintillator module, said module having an optical output (14) for transmitting an optical signal after conversion within the module of the incoming gamma rays; and, an optical transducer module (15) also movably mounted in the housing (11) and having an input (16) arranged to receive the optical output from the scintillator module, said transducer module being able to convert the instantaneous optical output into an electrical output corresponding to the energy and flux of the incoming gamma radiations as detected in the scintillator module; in which the output (14) of the scintillator modules (12) and the input of the transducer module (15) are closely spaced to each other, and define a space (17) therebetween to be filled with an optical fluid to improve the transmission of the optical signal to the input of the transducer module; characterised in that a housing chamber (12a, 15a) is defined in said housing (11) and which is communicable with said space (17) between the output (14) of the scintillator module (12) and the input (16) of said transducer module (15), and in that a flow restrictor is in communication with said chamber and/or said space and is arranged, in use, to restrict fluid flow between the chamber and said space for the purpose of damping movement of either or both of said modules within said housing.
Patent CA-2198651-C (CA)
Title: Continuous method for producing polypropylene mixtures of increased stress-crack resistance and melt strength
Inventor: HESSE ACHIM
IPC: C08J3/20
Filed: 1997-02-27
Granted: 2002-02-05
Abstract: Polypropylene mixtures of increased stress-crack resistance and melt strength can be produced by irradiating polypropylene powders with low average particle diameters by low energy electron-beam accelerators with energies of to 300 keV. The polypropylene mixtures produced are suitable particularly for producing films, sheets, panels, coatings, pipes, hollow objects and foamed materials.
Patent CA-2199913-C (CA)
Inventor: SCHLEENSTEIN DIETER
IPC: C07C271/20
Filed: 1997-03-13
Granted: 2006-05-16
Abstract: Inert, thermally stable high-boiling solvents which have a defined boiling point or which boil over a narrow range are used as heat exchange media during thermal cracking of carbamidic acid esters (urethane cracking).
Patent CA-2211694-C (CA)
Title: Hand-held stent crimper
Inventor: REED PHILLIP G
IPC: A61F2/06
Filed: 1997-07-28
Granted: 2005-06-21
Abstract: A stent crimper is provided for loading a stent onto a catheter in order to provide a stenting assembly that is suitable for use in procedures in conjunction with percutaneous transluminal angioplasty and percutaneous transluminal coronary angioplasty catheters. The crimper has a stent holding member or sheath which supports the stent by its exterior surface so that a balloon of a catheter can be slid within the stent. An elongated wrapping member or belt winds around the sheath. By properly manipulating the belt, the belt applies generally cylindrical radially directed forces onto the sheath and thus onto the stent within the sheath, as well as the balloon beneath the stent, in order to crimp the stent onto the balloon. A procedure is also illustrated by which a stent is crimped onto the balloon by a hand-held crimper which can be discarded after stent delivery and crimping has been completed.
Patent CA-2219795-C (CA)
Title: Modulation of cholesteryl ester transfer protein (cetp) activity
Inventor: THOMAS LAWRENCE J
IPC: C12N5/08
Filed: 1996-05-01
Granted: 2000-08-08
Abstract: This invention relates to peptides comprising a helper T cell epitope portion and a B cell epitope portion for eliciting an immune response against endogenous cholesteryl ester transfer protein (CETP) activity, to prevent or treat cardiovascular disease, such as atherosclerosis.
Patent CA-2224679-C (CA)
Inventor: KING MICHAEL G
IPC: C22C9/04
Filed: 1996-06-13
Granted: 2001-08-28
Abstract: Machinable lead free brasses for potable water applications are provided wherein a combination of bismuth and selenium are substituted in the alloy for lead and the bismuth and selenium are added to the alloy in the form of an additive product comprising bismuth selenide. A method of making the brasses which meets environmental and safety regulations is also provided. The bismuth selenide is preferably made by sintering particles of bismuth and selenium in a Bi/Se weight ratio of about 1.8 or greater and fusing the sinter.
Patent CA-2225315-C (CA)
Inventor: HAMMICHE AZZEDINE
IPC: G01Q60/58
Filed: 1997-04-22
Granted: 2004-01-27
Abstract: A platinum/rhodium resistance thermal probe is used as an active device which acts both as a highly localized heat source and as a detector to perform localized differential calorimetry, by thermally inducing and detecting events such as glass transitions, meltings, recystallizations and thermal decomposition within volumes of material estimated at a few .mu.m3. Furthermore, the probe is used to image variations in thermal conductivity and diffusivity, to perform depth profiling and sub-surface imaging. The maximum depth of the sample that is imaged is controlled by generating and detecting evanescent temperature waves in the sample.
Patent CA-2226061-C (CA)
Title: Method and apparatus for controlling power level during bist
Inventor: COTE JEAN-FRANCOIS
IPC: G06F1/32
Filed: 1997-12-31
Granted: 2002-05-28
Abstract: An improvement in a method of testing a digital circuit or system, having a plurality of scannable memory elements, in accordance with conventional BIST methods in which, at a reference clock, a test stimulus is shifted into the memory elements, the response of the elements is captured and the captured data is shifted out of the elements and analyzed, the improvement comprising controlling the average power consumption of the circuit during the test by suppressing cloc k pulses from the reference clock during phases of the test that do not require the m aximum level of activity or in which the performance of the circuit is not to be ev aluated; and, suppressing no clock pulses from the reference clock in phases of the test i n which the performance of the circuit is to be evaluated, so that the conditions ar e substantially as those of normal mode of operation of the circuit.
Patent CA-2227185-C (CA)
Inventor: COOPER MARTIN
IPC: B23K26/00
Filed: 1996-07-17
Granted: 2007-05-01
Abstract: Afin de produire sur la table d'une pierre précieuse de diamant (7), une marque qui soit invisible à l'oeil nu au moyen d'une loupe à grossissement x10, on utilise un laser ultraviolet (1) ayant une longueur d'onde de 193 nm en association avec un masque (2) de façon à irradier la surface de la pierre (7) avec une fluence inférieure à 2 J/cm<2> par impulsion, le nombre des impulsions étant au moins égal à 100, en présence d'air qui réagit avec le diamant (7) et qui permet la formation d'une marque sans qu'aucun assombrissement soit visible à l'examen au moyen d'un microscope.
Patent CA-2227615-C (CA)
Title: Silicon nitride nanowhiskers and method of making same
Inventor: MOY DAVID
IPC: C04B35/81
Filed: 1996-07-24
Granted: 2009-07-14
Abstract: Silicon nitride nanowhiskers predominantly having diameters substantially less than about 200 nm are disclosed. The nanowhiskers of Si3N4 are produced by reacting gaseous SiO and N2 at elevated temperature and pressure in a reaction zone in the presence of a plurality of disperse carbon nanotubes having a diameter of from 3.5 to 70 nm.
Patent CA-2227858-C (CA)
Inventor: CORONADO MARTIN P
IPC: E21B33/127
Filed: 1998-01-27
Granted: 2004-11-02
Abstract: A downhole tool, such as a packer or bridge plug, employing an inflatable element, is disclosed. A pressure-compensation system is in fluid communication with the annular space between the body of the packer or plug and the inflatable element. The compensation system responds to thermally induced pressure load changes within the wellbore by allowing fluid to escape from beneath the inflated element when increases in fluid temperature in the wellbore increase the pressure under the element. The system additionally supplies fluid behind the element should the wellbore fluids decrease in temperature, thus lowering the pressure under the inflatable element.      The compensation system counteracts what would otherwise be a tendency for a pressure increase, which could subject the inflatable element to failure from overpressure and, conversely, supplies fluid to under the inflated element so that it can prevent unwanted loss of sealing or anchoring integrity of the packer or plug due to what would have otherwise been a pressure decrease behind the inflatable element.
Patent CA-2230655-C (CA)
Inventor: O'RIORDAN CATHERINE R
IPC: C12N15/864
Filed: 1996-08-30
Granted: 2008-06-17
Abstract: Purification d'importante quantité d'adénovirus (infectieux) actifs et de virus adéno-associés (AAV), essentiellement pour des applications thérapeutiques. L'invention porte en particulier sur des méthodes améliorées permettant de soumettre de tels virus à des matières chromatographiques appropriées de manière à réduire autant que possible ou éliminer totalement toute altération du virus, notamment des composants de sa surface, par le contact avec de telles matières chromatographiques. Il en résulte une possibilité de purifier rapidement et de manière efficace des quantités d'intérêt commercial de virus actifs (infectieux) se prêtant à des applications thérapeutiques telles que des opérations de transfert de gènes ou de thérapies géniques.
Patent CA-2241908-C (CA)
Title: Convoyeur et ligne de convoyeur
Inventor: BOHLIN CHRISTER
IPC: C25C7/06
Filed: 1997-01-02
Granted: 2005-08-23
Abstract: L'invention porte sur un système de convoyage de plaques (4), et en particulier de plaques mères revêtues ou non d'une couche de dépôt métallique, à l'intérieur d'une installlation d'affinage électrolytique de métaux dans lequel les plaques doivent être convoyées dans le système de convoyeur (25, 50) sur au moins une trajectoire horizontale de convoyeur où elles se trouvent sensiblement verticales et équidistantes. Le convoyeur, du type à longeron mobile, comporte des supports fixes (28, 54) et au moins un longeron mobile (30, 62) pourvu de supports mobiles (31, 67) parcourant une trajectoire cyclique comprenant un mouvement ascendant où toutes les plaques circulant sur la trajectoire sont soulevées par les supports mobiles dans une première position et à partir de supports fixes, un mouvement vers l'avant dans lequel toutes les plaques avancent ensemble d'un pas tout en restant sur leurs supports mobiles; un mouvement descendant dans lequel les plaques sont amenées sur des supports fixes dans une deuxième position; puis un mouvement de retour dans lequel la longueur du pas correspond à l'écartement (PI, PII) entre plaques le long de la trajectoire.
Patent CA-2246868-C (CA)
Inventor: STEILER RICHARD W
IPC: H01R13/74
Filed: 1998-09-09
Granted: 2001-10-30
Abstract: A trailer connector mount includes a main bracket having a pair of clamp flanges, a rear wall, a first side wall intersecting one of the clamp flanges at an included angle behind the support member being approximately 80°, a second side wall extending between the rear wall and the other clamp flange, and a fastener wall being coplanar with the main clamp flanges and having respective fastener openings therein. A connector socket is fastened to one or both of the rear wall and the first side wall, projecting toward the main clamping surface in spaced relation thereto. A pair of band clamps secure respective ones of the clamp flange portions to a tow vehicle support member. An auxiliary angle bracket is removably fastenable to the fastener wall for locating the connector mount in a lowered position relative to the support member.
Patent CA-2252936-C (CA)
Title: Adjustable height load bearing support structure
Inventor: MACHAEL JAY R
IPC: A47B9/02
Filed: 1997-10-10
Granted: 2003-05-06
Abstract: A counterbalanced adjustable height load bearing support structure (20) with  a pretensioning mechanism comprises a pair of pivotable arms (42, 42) each having a free end (44) in engagement with a support assembly (24) and being biased by a torsion spring (40). A lever arm (154) is connected to each torsion spring (40) and exerts a biasing force on the pivotable arm (42) whe n the lever (154) is rotated, thereby preloading the springs. A cable (122) connects the lever arms and passes over a central bushing (170). The bushing  (170) receives a threaded shaft (150) which may be turned to move the bushin g and thereby adjust the tension in the cable. Because the cable (122) is capable of sliding engagement with the bushing (170), tension in the cable i s substantially uniform throughout its entire length and thus the resultant forces on the lever arms (154) are approximately equal, whereby binding or racking of the support assemblies (20) is minimized as the support surface (32) is raised or lowered.
Patent CA-2253528-C (CA)
Title: Procede telephonique comprenant un nouveau service pour abonnes
Inventor: TRELL ANDERS EDVARD
IPC: H04M3/42
Filed: 1997-05-24
Granted: 2007-01-02
Abstract: L'invention concerne un procédé téléphonique offrant aux abonnés d'un système de réseau téléphonique/télécommunications la possibilité de disposer d'un nouveau service s'appliquant de préférence aux appels/communications entrants. Selon l'invention, un abonné peut, de préférence au moyen d'une numérotation et/ou entrée, à l'aide d'un clavier existant sur le téléphone/installation terminale de l'abonné, et au moyen d'un numéro/code de communication défini, obtenir un numéro de téléphone/adresse provisoire sur une durée désirée. L'abonné, après en avoir fait la demande, reçoit de préférence un message verbal relatif au numéro de téléphone/adresse attribué, ce qui, au cours de cette période, facilite de préférence les appels/communications entrants sans que cela ait une influence sur la possibilité de recevoir et de passer des appels/communications à l'aide du numéro de téléphone/adresse ordinaire de l'abonné. En ce qui concerne cette période provisoire, l'abonné établit de préférence une date initiale et une date finale et peut également établir un intervalle de temps dans chaque période de 24 heures.
Patent CA-2254511-C (CA)
Inventor: KUHN STEPHEN R
IPC: B61L5/04
Filed: 1998-11-25
Granted: 2001-09-11
Abstract: A railroad frog assembly is provided with a switched magnet that immediately retains a frog flexible wing rail in its open position in response to a railcar wheel passing through the frog assembly, and that delayably releases the frog flexible wing rail  from its open position for subsequent closure by an included frog compression spring.
Patent CA-2255407-C (CA)
Inventor: KUMAZAKI TOSHIMI
IPC: B24B53/075
Filed: 1994-07-06
Granted: 2004-06-22
Abstract: A grinding wheel for producing a power transmission belt V belt having an endless body with a length and defining an elongate rib. The body has an inside, an outside, and laterally spaced sides. The rib has an exposed surface to engage with a cooperating pulley. At least a first portion of the exposed rib surface is formed by at least one of grinding and cutting. There is a second portion of the exposed surface that is neither cut nor ground during formation of the power transmission belt. The grinding wheel comprises a cylindrical body having a central axis, a plurality of axially spaced, radially extending projections with there being facing grinding surface portions on axially adjacent projections, a radially facing base surface portion between axially adjacent projections, and an undercut extending radially inwardly from the base surface portion and continuously through 360° around the cylindrical body.
Patent CA-2256111-C (CA)
Inventor: GOLINVEAUX JAMES E
IPC: A62C35/66
Filed: 1998-12-16
Granted: 2009-05-12
Abstract: A gas charged fluid flow line of a dry pipe sprinkler system is continuously monitored to detect rate of loss of pressure (dp/dt). The rate of pressure loss is used to detect whether there is an open sprinkler head in a sprinkler grid of the system. Detection of an open sprinkler head and opening of a dry valve may occur in a matter of a few seconds, allowing for a quick response to a fire condition and accurate discrimination of a pressurized gas leak condition. The system may operate at charge pressures in the range of about 7 psig to about 15 psig.
Patent CA-2259776-C (CA)
Inventor: BORGSTROM DENNIS V
IPC: E21B43/11
Filed: 1999-01-21
Granted: 2001-07-31
Abstract: A magnetic assembly is used in wells that are lined with a metal casing so as to attract and collect resulting metal debris after perforation of the metal casing by a perforating tool. When the perforating tool was activated in the past, the metal debris typically fell downward inside of the metal casing and needed to be retrieved by a flushing or similar procedure. The present invention involves attaching a magnetic assembly to the bottom end of the perforator tool to collect the metal debris as it falls after perforation of the metal casing. The magnetic assembly includes a steel pipe filled with spaced magnetic discs, and also includes a guide shoe on one end of the pipe and a thread adaptor on the other end. The guide shoe facilitates insertion of the magnetic assembly into the mouth of the well casing, and centres the assembly once inside. The thread adaptor is used to attach the magnetic assembly to the bottom end of the perforator tool.
Patent CA-2260291-C (CA)
Inventor: DRUCKER DANIEL J
IPC: A61P3/04
Filed: 1997-07-18
Granted: 2010-09-14
Abstract: Divulgation d'antagonistes du peptide-2 de type glucagon. Divulgation de leurs effets sur la croissance du tissu gastro-intestinal. Divulgation de leur formulation comme produit pharmaceutique, ainsi que de leurs utilisations thérapeutiques et connexes pour le traitement du tissu intestinal. Divulgation aussi de méthodes pour identifier des antagonistes du peptide-2 semblables au glucagon.
Patent CA-2260446-C (CA)
Inventor: NGUYEN PHILIP D
IPC: C09K8/512
Filed: 1999-01-27
Granted: 2005-11-29
Abstract: The present invention relates to methods of reducing water produced with hydrocarbons from subterranean formations penetrated by well bores. The methods basically comprise the steps of coating a particulate solid material with an organic polymer which reacts with water and swells when contacted therewith whereby the flow of water through a pack of the resulting polymer coated particulate solid material is reduced or prevented, and thereafter, placing a pack of the polymer coated particulate solid material in or adjacent to the formation whereby water and hydrocarbons produced from the formation are caused to flow through the pack.
Patent CA-2263113-C (CA)
Title: Rocking and gliding mechanism for furniture
Inventor: DESNOYERS CHARLES
IPC: A47D9/02
Filed: 1999-02-26
Granted: 2007-05-29
Abstract: A rocking and gliding mechanism for mounting a piece of furniture on a support and for rocking and gliding relative to the support, said mechanism comprising: -a unitary front link having an upper end adapted to be pivotally mounted to said support and having a lower end that defines a bottom front pivot mount; -a unitary rear link having an upper end adapted to be pivotally mounted to said support and having a lower end that defines a bottom front pivot mount; and -a lower link having a front end and a rear end respectively pivotally connected to said bottom front and said bottom rear pivot mounts, all of said pivot mounts defining substantially parallel pivot axes. Any type of furniture, for instance a seat or a chair or a sofa or the like may be used to place on top of the mechanism. Variants with a sofa, a baby bed, a cradle or a footrest may also be provided.
Patent CA-2263158-C (CA)
Title: Unit dose chlorhexadine gluconate (chg) applicator having extended chg shelf life
Inventor: MCGRATH PATRICK D
IPC: A61F13/40
Filed: 1997-07-07
Granted: 2002-03-19
Abstract: A unit dose chlorhexadine gluconate (CHG) applicator is disclosed wherein a unit dose of the CHG is contained in a hermetically sealed manually crushabl e glass ampule that has an internal volume of the CHG. The CHG in the ampule h as an effective shelf life of at least 24 months. The glass ampule of the applicator is preferably protected by a flexible cover to protect the user's  hand during manual crushing of the ampule to release the CHG therefrom. In o ne embodiment of the invention, a cylindrical glass ampule is housed within a tubular, flexible synthetic resin cover which has a porous applicator swab a t one end thereof. Upon crushing of the glass ampule, the CHG released therefr om impregnates the swab allowing the user to spread the CHG across an area to b e sanitized. In a second embodiment of the invention, a cylindrical glass ampu le is received within a semi-cylindrical, open-sided body cover having a flange  portion that mounts a sponge-gripping members on the ampule permitting the user to crush the ampule by squeezing the members toward one another whereup on the CHG is released from the ampule and impregnates the sponge swab. The swa b soaked with the CHG antiseptic may be rubbed across an area to be sanitized.
Patent CA-2270844-C (CA)
Inventor: JOHNSON KEVIN L
IPC: F16H57/10
Filed: 1999-05-03
Granted: 2004-10-19
Abstract: A fully integrated hydrostatic transaxle formed of three housing members, a hydrostatic transmission and axle housing member joined to a differential housing member along a vertical plane and joined to a hydrostatic transmission mounting plate and cover member along a horizontal plane. A hydrostatic transmission is connected to and suspended from the mounting plate and cover member. In a second embodiment, a hydrostatic transmission is mounted to a hydrostatic transmission and axle housing member, which in turn is fastened to a center housing member. The center housing member is in turn connected to an axle and differential housing member. The interfaces defined by where the housing members are joined together define substantially parallel vertical planes. Means for effectively unlocking the transmission and the differential is provided so that the operator can push the vehicle without encountering the resistance of back driving the hydrostatic transmission. A  neutral position adjustment mechanism provides a tactile indication of the neutral position, and the mechanism can be readjusted to define the correct neutral position.
Patent CA-2273767-C (CA)
Inventor: HIPP JAMES E
IPC: E21B31/113
Filed: 1999-06-09
Granted: 2005-01-04
Abstract: A downhole jar apparatus for use in oil and gas wells provides an improved construction that features a movable piston that imparts upward blows to the tool body during use. The apparatus includes an elongated tool body having upper and lower end portions and a longitudinal flow bore for enabling fluid to pass from the upper end of the tool body to the lower end portion thereof. A pair of pistons are slideably mounted within the tool body including an upper piston having a seat and a lower piston having a seat. A ball valving member is used to seal the upper piston, that ball valving member being pumped down through a work string such as a coiled tubing unit in order to reach the seat of the upper piston. A second valving member in the form of an elongated dart is disposed in between the two pistons. A trip mechanism separates the second valving member from the lower piston when a predetermined hydrostatic pressure value is overcome. Once the second valving member and lower piston are separated, the second piston is fired upwardly striking an anvil portion of the tool body to create the upward jar or blow.