baber/WOPTO huggingface dataset:
Patent CA-2145651-C (CA)
Title: System for controlling flow through a process region
Inventor: PALMER DAVID W
IPC: F24F11/75
Filed: 1993-10-22
Granted: 1999-09-07
Abstract: A regulator for maintaining a constant partial vacuum in a region includes a path, through which fluid passes from the region to a vacuum source, and a piston (2) movably mounted at a constriction point (30). The piston has a frontal face (15), exposed to fluid in the path upstream of the constriction point (30). A piston distal face (16), exposed to a reference pressure, such as the pressure of region and piston weight tends to widen the path at the constriction point (30). A force is exerted on the piston by a spring (21) under compression, in a direction that tends to narrow the path at the constriction point. A buffering gas, introduced to the area between the piston's skirt (29) and the piston mounting structure (65), may be used to keep fumes from backing up into the region and/or to provide a bearing.
Patent CA-2146243-C (CA)
Inventor: NORELL LENNART BROR
IPC: G06F9/44
Filed: 1993-10-26
Granted: 2002-02-26
Abstract: A general analysis system for performing an analysis used in the control of an industrial process. The general analysis sys-tem comprises a general analysis program for performing at least one analysis on a set of data and an analysis control data for controlling the analysis of the data set. According to the present invention, the general analysis program comprises a plurality of analysis primitives and the analysis control data comprises a plurality of analysis modules. An analysis may be constructed from a set of analysis modules and performed by interpreting this set using at least one of the analysis primitives.
Patent CA-2146648-C (CA)
Title: Transmission network and filter therefor
Inventor: BROWN PAUL ANTHONY
IPC: H04B3/56
Filed: 1993-10-20
Granted: 2002-01-15
Abstract: A power transmission network (40) is disclosed which includes input means (52) for the input of telecommunication signals having carrier frequen-cies greater than 1MHz onto the network (40), and a means for removing similar speech and/or data signals from the network. Preferably a network conditioning element (52) is used which includes a low pass filter portion for filtering out a low frequency high amplitude mains power signal, and a coupling element for input and/or removal of telecommu-nication signals from the ne-twork. In this way both speech and data signals can be trans-mitted at carrier frequencies of greater than 1MHz along a standard electricity distribution and/or transmission network which when conditioned pro-vides a larger available spectrum per unit length of network and greater transmission capacity than previously known. The quies-cent noise level of the conditioned network is also much reduced thus permitting lower signal injection levels for a given signal-to-noise ratio and a consequential reduction in spurious radiation from the network.
Patent CA-2147191-C (CA)
Title: Method for producing cold polyurethane foams
Inventor: BRUENE-FISCHER ANETTE
IPC: C08L75/08
Filed: 1995-04-18
Granted: 1999-06-01
Abstract: High resilience polyurethane foams are produced by reacting a mixture of highly reactive polyols having a weight average molecular weight between about 4800 and 6500 g/mole and containing at least 70% primary hydroxyl groups and optionally fillers, polyfunctional isocyanates, amine activators, cross-linking agents, tin catalysts, blowing agents and stabilizers. The inventive stabilizers can be used universally in high resilience slabstock foam systems as well as in high resilience molded foam systems and in formulations based on pure TDI, TDI/MDI mixtures as well as on pure MDI in combination with appropriate polyols.
Patent CA-2150188-C (CA)
Title: Methods and devices for real-time formation imaging through  measurement-while-drilling telemetry
Inventor: MONTARON BERNARD
IPC: G01V3/34
Filed: 1995-05-25
Granted: 2002-03-12
Abstract: Methods for providing an image at the surface of a formation surrounding a borehole in real-time include associating resistivity measurements with a predetermined number of preselected toolface positions.  The resistivity measurements are subjected to data compression and transmitted uphole by MWD telemetry.   At the surface, the compressed resistivity measurements are associated with the preselected toolface positions and with a calculated translational distance value.  The resistivity measurements are decompressed and/or converted to pixel information.  The pixel information is arranged according to toolface position and translational distance to create a high resolution of the formation.  These processes are repeated over time so that the image created represents the formation over a selected distance.  Apparatus of the invention used to perform the methods include an MWD telemetry device, at least one downhole formation resistivity sensor, and downhole device(s) for determining the toolface of the resistivity sensor.  Downhole processor(s) are provided for synchronizing, selecting and compressing resistivity measurements.  On the surface, a translational distance sensor is provided along with processor(s) for associating, converting, and arranging.  At the surface, the associated information is used to form an image of the formation spanning a number of translational distance values.
Patent CA-2150999-C (CA)
Title: Disposable body fluids absorbent padding
Inventor: MIZUTANI SATOSHI
IPC: A61F13/15
Filed: 1995-06-05
Granted: 1998-08-04
Abstract: A disposable body fluids absorbent padding at least comprising a liquid-permeable topsheet, a liquid-impermeable backsheet and a liquid-absorbent core disposed between these two sheets,  wherein said topsheet is made of a nonwoven fabric comprising high density zones and low density zones, and said high density zones have strips of liquid-impermeable thermoplastic film bonded to the upper surfaces of said high density zones,
Patent CA-2158130-C (CA)
Title: Process and intermediates for preparing azabicyclo(2.2.2)octan-3-imines
Inventor: GODEK DENNIS M
IPC: C07D453/02
Filed: 1991-12-18
Granted: 1998-07-14
Abstract: Azabicyclo[2.2.2]octan-3-imines of the general formula   wherein R1, R2 and R3 are as defined herein are prepared by reacting a compound of the formula   with a compound of the formula   wherein A is MgCl, MgBr or Li.
Patent CA-2161169-C (CA)
Title: Indoor communication cable
Inventor: FRIESEN HAROLD WAYNE
IPC: B65H29/12
Filed: 1995-10-24
Granted: 1999-03-23
Abstract: A cable for use within customer premises that effectively extends outside plant service to within the building. The cable has first and second core assembly preferably formed of flame resistant material completely isolated from each other and surrounded by a shielding member having a rough figure 8 configuration. Each of the tubes is completely enclosed within the loops formed by the shielding member and completely isolated from the other tube. The shielding member is surrounded by a preferably flame resistant outer jacket.
Patent CA-2161403-C (CA)
Title: Go-kart bumper system
Inventor: BERUBE PAT
IPC: B60R19/24
Filed: 1995-10-25
Granted: 2009-08-18
Abstract: A bumper system for a go-kart has a plurality of bumper sections. The bumper section has a sufficient rigidity that displacement to one bumper section transmits motion to other bumper sections. A plurality of shock absorbers are provided, for example, rubber elements connected between the bumper sections and the frame. Consequently, impact at any one point is transmitted throughout the bumper system so that all the shock absorbers assist in absorbing the impact, rather than just the shock absorbers immediately adjacent the impact point. For the rear bumper system transverse motions guides are provided to support a rear bumper section, and to maintain the various bumper sections about a horizontal plane relative to the frame, while permitting the necessary horizontal motions, both longitudinally and laterally. The bumper sections may be connected together at their ends by pivots. Alternatively, the bumper sections may be continuous. The bumper sections may be formed from steel or a fibre reinforced composite material.
Patent CA-2163446-C (CA)
Title: Pyrazolopyrimidinones for the treatment of impotence
Inventor: ELLIS PETER
IPC: A61P13/02
Filed: 1994-05-13
Granted: 1998-07-07
Abstract: The use of a compound of formula (I) wherein R1 is H; C1-C3 alkyl; C1-C3 perfluoroalkyl; or C3-C5 cycloalkyl; R2 is H; optionally substituted C1-C6 alkyl; C1-C3 perfluoroalkyl; or C3-C6 cycloalkyl; R3 is optionally substituted C1-C6 alkyl; C1-C6 perfluo-roalkyl; C3-C5 cycloalkyl; C3-C6 alkenyl; or C3-C6 alkynyl; R4 is optionally substituted C1-C4 alkyl, C2-C4 alkenyl, C2-C4 alkanoyl, (hydroxy)C2-C4 alkyl or (C2-C3 alkoxy)C1-C2 alkyl; CONR5R6; CO2R7; halo; NR5R6; NHSO2NR5R6; NHSO2R8; SO2NR9R10; or phenyl, pyridyl, pyrimidinyl, imidazoyl, oxazolyl, thiazolyl, thienyl or triazolyl any of which is option-ally substituted with methyl; R5 and R6 are each in-dependently H or C1-C4 alkyl, or together with the nitrogen atom to which they are attached form an optionally substituted pyrrolidinyl, piperidino, morpholino, 4-N(R11)-piperazinyl or im-idazolyl group; R7 is H or C1-C4 alkyl; R8 is optionally substituted C1-C3 alkyl; R9 and R10 together with the nitrogen atom to which they are attached form an optionally substituted pyrrolidinyl, piperidino, morpholino or 4-N(R12)-piperazinyl group; R11 is H; optionally substituted C1-C3 alkyl; (hydroxy)C2-C3 alkyl; or C1-C4 alkanoyl; R12 is H; optionally substituted C1-C6 alkyl; CONR13R14; CSNR13R14; or C(NH)NR13R14; and R?13? and R14 are each independently H; C1-C4 alkyl; or substituted C2-C4 alkyl; or a pharmaceutically acceptable salt thereof, or a pharmaceutical composition containing either entity, for the manufacture of a medicament for the curative or prophylactic treatment of erectile dysfunction in a male animal, including man; a pharmaceutical composition for said treatment; and a method of said treatment of said male animal with said pharmaceutical composition or with said either entity.
Patent CA-2163520-C (CA)
Inventor: LIN TAI-SHUN
IPC: A61K31/7042
Filed: 1994-05-23
Granted: 2006-01-10
Abstract: The present invention relates to the discovery that certain dideoxynucleoside analogs which contain a dideoxy ribofuranosyl moiety having an L-configuration (as opposed to the naturally occurring D-configuration) exhibit unexpected activity against Hepatitis B virus (HBV). In particular, the compounds according to the present invention show potent inhibition of the replication of the virus in combination with very low toxicity to the host cells (i.e., animal or human tissue). Compounds according to the present invention exhibit primary utility as agents for inhibiting the growth or replication of HBV, HIV  and other retroviruses, most preferably HBV. The compound 1-(2,3-dideoxy-beta-L-ribofuranosyl)-5-fluorocytosine is shown to be a potent anti-HIV agent with low toxicity to host cells. In a preferred embodiment a .beta.-L nucleoside compound according to the following structure is provided:
Patent CA-2166537-C (CA)
Title: Treatment of presbyopia and other eye disorders
Inventor: SCHACHAR RONALD A
IPC: A61F2/14
Filed: 1993-07-13
Granted: 2003-04-15
Abstract: Presbyopia and hyperopia are treated by increasing the ampli-tude of accommodation by increasing the effective working distance of the ciliary muscle. To this end, the sclera over the ciliary body is ex-panded by suturing thereto a relatively rigid band slightly larger than the sclera, surgical alloplasty, or by weakening the sclera by surgery or treatment with enzymes, heat or radiation, which then expands due to intraocular pressure. The scleral expansion band (102) comprises an anterior (108) and posterior (106) rim, and a web (104) extending between the rims. The band may be provided with one or more holes to assist in suturing. The same goal is achieved by shortening the zo-nules by application of heat or radiation or by surgery. Presbyopia is arrested by inhibiting the continued growth of the crystalline lens by application of heat, radiation or antimitotic drugs to the epithelium of the lens. Primary open angle glaucoma and/or ocular hypertension can be prevented and/or treated by increasing the effective working distance of the ciliary muscle.
Patent CA-2167753-C (CA)
Inventor: JONES JAMES D JR
IPC: F01M11/03
Filed: 1996-01-22
Granted: 2002-09-17
Abstract: A magnetic drain bolt comprising a bolt body and a magnet. The bolt body comprises of a male-threaded member and a head member, the male-threaded member having a fastening protuberance formed at an end thereof. The magnet is comprised of a sintered ferrite material and has a recess formed at a bottom end thereof for receipt of the fastening protuberance, the recess having a depth sized equivalent to a height of the fastening protuberance, the magnet having a diameter slightly smaller than a diameter of the male-threaded member. The fastening protuberance is secured with an adhesive to the magnet within the recess whereby the fastening protuberance provides additional support for securing the magnet to the bolt body. The magnetic drain bolt may be used in association with an oil pan of an automobile or the like.
Patent CA-2174312-C (CA)
Inventor: BHATIA KAMLESH KUMAR
IPC: C08G63/78
Filed: 1994-10-18
Granted: 2005-02-15
Abstract: An atmospheric pressure process for the continuous production of polyester i s disclosed wherein a melt of dihydroxy ethyl terephthal ate, or its low molecular oligomers, obtained by esterifying terephthalic acid or transesterifying dimethyl terephthalate with ethylene g lycol, is intimately contacted with an inert gas to facilitate polymerization and remo val of the reaction by-products. The ethylene glycol ev olved and the inert gas are recycled.
Patent CA-2175294-C (CA)
Inventor: SEWELL FREDERIC D
IPC: F24F6/00
Filed: 1996-04-29
Granted: 2000-06-20
Abstract: A water spray-based air purification system having a humidification portion and a dehumidifying portion is operatively installed in an air handling unit used to recirculate air within a conditioned space. A blower within the air handling unit housing operates to draw return air into the housing, flow the air across the entire air purification system, and then discharge the purified and humidified air back into the conditioned space. A water spray portion of the purification system is served by a pump forcing water from a sump structure through a filter, with the spray water draining back into the sump after cleansing air traversing the purification system. Upon a sensed demand therefor, an additive injector adds suitable chemical treatment material to the sump water, and a water pollutant monitor structure operates to backwash the filter upon sensing an undesirable pump back pressure increase or a buildup of particulate and gaseous pollutants in the sump water. The operation of the air handling unit and its associated air purification system are automatically monitored and regulated by a programmable air quality and monitoring and control system which is coupled to multi-parameter sensing apparatus that continually detects temperature, humidity and gaseous and particulate pollution levels present in the conditioned space or the air being delivered thereto from the air handling unit.
Patent CA-2178320-C (CA)
Inventor: SIMMEN CHRISTIAN
IPC: B65D81/32
Filed: 1994-12-06
Granted: 2005-09-20
Abstract: La présente invention concerne une fixation étanche de raccordement d'un mélangeur statique sur un distributeur comportant une cartouche à double chambre contenant des substances différentes séparées. Cette fixation comporte un manchon extérieur (12) muni d'un raccord rotatif monté sur un embout central (14) situé à l'intérieur d'un col (20) du manchon extérieur (12). L'embout central comporte des fourchons mâles creux (32, 34) qui s'engagent dans les orifices de sortie (108, 110) de la cartouche ou des cartouches (100), formant ainsi une unité étanche avec elle(s). Le manchon extérieur comporte des ailettes (24, 26) situées sur la face externe du col (20) et qui s'enclenchent dans des gorges de retenue (126, 128) placées du côté de l'extrémité d'évacuation de la cartouche ou des cartouches (100), lorsque les fourchons mâles creux (32, 34) sont insérés dans les orifices (108, 110) de la cartouche ou des cartouches (100).
Patent CA-2180291-C (CA)
Title: Method for making trans non-conjugated diolefins
Inventor: SMITH ROBERT SCOTT
IPC: C07C11/12
Filed: 1994-12-30
Granted: 2006-01-17
Abstract: A method is provided for selectively producing a trans-geometrical isomer of non-conjugated diolefins. The method comprises treating a starting non- conjugated diolefin isomer or mixture of isomers, a first mono-olefin and a second mono-olefin with a metathesis catalyst under selected reaction conditions to produce a product with greater than 80 % trans-geometrical isomer content. In a preferred embodiment, 1,4-hexadiene, ethene, and propen e contact an Re2O7 catalyst and are converted to a reaction product mixture wi th above 80 % trans-1,4-hexadiene.
Patent CA-2189726-C (CA)
Inventor: LYDIC TODD L
IPC: B61F1/02
Filed: 1996-11-06
Granted: 2004-11-02
Abstract: A one-piece center sill for a railroad freight car formed by cold rolling a flat sheet of steel into a rectangular configuration. One of the embodiments includes strengthening flanges and another includes ribs.
Patent CA-2190441-C (CA)
Inventor: REASONER MICHAEL
IPC: F16C1/22
Filed: 1996-11-15
Granted: 2001-01-16
Abstract: An adjustment assembly in a motion transmitting remote control wherein the overall length of the conduit is adjusted to accommodate the installed post. Male (18) and female (20) telescoping members are biased into one another to shorten the overall length of the conduit. A spring (22) is retained in position on the malemember (18) by a collar (26) until fully 1111 inserted into the female member (20) whereupon the locking member (19) which interlocks the telescoping members presents an abutment to engage the collar (26) as the telescoping members (18 and 20) are telescoped into one another.
Patent CA-2198337-C (CA)
Inventor: BLACK GREGORY REDMOND
IPC: H04B1/69
Filed: 1997-02-24
Granted: 2000-06-27
Abstract: A communication device (104) comprises a receiver circuit (108) receiving a modulated receive signal. A reference oscillator (132) generates a first clock signal at a first frequency, the first clock signal having harmonics. Circuitry (130) coupled to the reference oscillator and to the receiver responds to the first clock signal to produce a signal used by the receiver to reduce the frequency of the modulating signal. A frequency spreading circuit (134) is also coupled to the reference oscillator to modulate the first clock signal with a frequency spreading signal to produce a modulated clock signal including modulated harmonic frequency components. The frequency spreading circuit selectively combines the frequency spreading signal and the first clock signal. A control circuit (114) controls the frequency spreading circuit to modulate first clock signal with the frequency spreading signal when the selected receive signal includes a harmonic of the first clock signal.
Patent CA-2199754-C (CA)
Inventor: LACHAPELLE LUC M
IPC: F24F13/14
Filed: 1997-03-12
Granted: 2001-01-30
Abstract: A flap valve vent hood for discharging air to atmosphere  from clothes  dryers  and bathroom  vents  is provided freeze-free by a secondary valve that is mounted on the principal flap valve and covering an open area that provides a secondary air flow path through the principal flap valve.   The principal flap valve and the secondary valve are normally closed and the principal flap valve is biased to its closed position by gravity.  A lip along an edge  of  the  open  area  may  be  provided  to  minimize accumulation of moisture where the two valves  are  in contact with one another.  A soffit vent hood of particular construction is provided in which there are two members detachably interconnected one being a downwardly directed hood and the other an insert therefor which carries the valves for respective ones of a pair of outlet discharge openings.
Patent CA-2200376-C (CA)
Title: Mounting rail
Inventor: SEDLMEIER ANDREAS
IPC: F16L3/00
Filed: 1997-03-19
Granted: 2002-05-14
Abstract: A mounting rail, particularly for use in building construction, is formed by an elongated rail member of approximately C-shaped cross section having a rear wall with spaced openings and pair of side walls extending from and at substantially right angles to the rear wall.  The side walls have free edge sections spaced from the rear wall bent inwardly towards one another and forming cross members extending generally parallel to the rear wall with the inner edges of the cross members spaced apart and forming a slot extending in the elongated direction of the rail member.          Each side wall has shaped recesses extending for the length of the rail member.   The shaped recesses are arranged symmetrically to one another in the opposite sidewalls and have a depth of (d) which does not exceed the width (b) of the cross members defining the slot.
Patent CA-2200776-C (CA)
Title: Prise electrique mobile etanche a volet de protection
Inventor: WILLAMS PIERRE
IPC: H01R13/52
Filed: 1997-03-21
Granted: 2004-02-17
Abstract: L'invention concerne une prise électrique mobile étanche à volet de protection (2) comportant des contacts (3,4) aménagés dans des logements d'un corps (1), munis d'ouvertures (6,7) pour le passage de contacts antagonistes d'un autre appareil, le volet étant pourvu d'autant d'ajours (8,9) de passage que le corps (1) est pourvu d'ouvertures (6,7) pour les contacts (3,4), et qui sont disposés de la même manière, tandis que ledit volet (2) est monté coulissant en translation entre au moins une position d'obturation où des zones (2',2") de celui-ci obturent les ouvertures (6,7) du corps et une position d'ouverture où lesdites ouvertures du corps et les ajours (8,9) du volet sont superposés, prise qui est remarquable en ce que la face du volet (2) tournée vers les contacts du corps, présente sur chaque zone (2',2") destinée à obturer une ou des ouvertures d'un logement, dite zone d'obturation, un plan qui est incliné vers la face opposée du volet et d'avant en arrière par rapport au sens de translation du volet vers sa position d'ouverture, tandis que les ouvertures (6,7) des logements sont entourées par des rebords (13,14) en sifflet dont les plans en biseau contenant les arêtes desdits rebords sont parallèles aux plans inclinés des zones d'obturation (2',2") du volet afin que ces derniers s'appliquent bien sur lesdites arêtes des rebords en position d'obturation.
Patent CA-2201509-C (CA)
Inventor: MACDONALD GEORGE
IPC: B63H23/36
Filed: 1995-09-28
Granted: 2006-08-22
Abstract: Dispositif d'étanchéité réglable (10) destiné à assurer l'étanchéité entre un arbre d'entraînement rotatif (12), tel qu'un arbre d'entraînement d'hélice, et l'ouverture dans une structure (14), telle que la coque ou la cloison étanche d'un bateau, à travers laquelle passe ledit arbre. Ledit dispositif est généralement rigide et est composé d'un anneau adaptateur (20), d'un anneau coulissant (62), d'un diaphragme (54) placé entres lesdits anneaux, d'un anneau de friction (90) dont l'une des extrémités est placée dans l'anneau adaptateur et dont une surface d'étanchéité est destinée à se trouver en contact avec la surface d'étanchéité d'un anneau d'étanchéité (161) rotatif avec l'arbre, des dispositifs de contrainte (130) placés entre l'anneau coulissant et l'anneau de friction et destinés à maintenir les deux surfaces d'étanchéité en contact, et une enveloppe à ressort (134) destinée à assurer l'étanchéité et faisant double emploi avec le diaphragme.
Patent CA-2206723-C (CA)
Inventor: DE ZEN VITTORIO
IPC: E04B1/35
Filed: 1992-05-29
Granted: 1999-03-16
Abstract: A thermoplastic wall forming member is provided with rails for securing a wiring channel interiorly of a hollow wall structure to be formed by the wall forming member and other wall forming members.