baber/WOPTO huggingface dataset:
Patent CA-2159650-A1 (CA)
Title: Toric pump
Inventor: SMITH JOHN E
IPC: F04D29/70
Filed: 1991-03-19
Abstract: A regenerative toric pump in which undesirable noise generation and leakage through clearance gaps between the impeller and housing is minimized includes an impeller having vanes lying in general planes radiating from the impeller axis disposed at variable spacings from each other in a geometrically balanced pattern.  Recesses in one of opposed side surfaces on the impeller and housing are arranged in a pattern such as to minimize leakage through the clearance gap between those surfaces from points  in  the  pump  chamber  which  are  at  different pressures.
Patent CA-2160852-A1 (CA)
Inventor: BELL RODNEY P
IPC: F23J13/04
Filed: 1995-10-18
Abstract: A   high   temperature   rectangular   exhaust   duct expansion joint structure for securement to a high temperature gas stream and particularly,  but not exclusively,  a turbine engine   exhaust   duct.     The   support   flange   structure incorporated in the duct has a connecting flange which defines opposed  side  walls  of  the  rectangular  support  flange structure.   A T-shape radial web is connected to an outer surface  of  the  connecting  flange.   The  radial  web  has  a vertical  wall  component  and  a  transverse  end  component extending beyond opposed sides of the vertical wall component and  is  connectable  to  a  flexible  membrane  of  the  joint structure.   The support flange has reinforced corner sections wherein the connecting flange and the vertical wall component of the T-shape radial web are of increased thickness to reduce thermal  stress  in  the  corner  sections  and  to  effectively redistribute the stress in the support flange.
Patent CA-2161003-A1 (CA)
Title: Armrest device for a chair
Inventor: HOLSTENSSON LARS
IPC: A47C7/54
Filed: 1994-04-14
Abstract: An armrest device for an office chair compares a fastening element (6) intended to be fixed to the chair beside the seat (4). The device further includes an armrest (7, 8, 9, 20) which is connected to the fastening element (6) and has a vertical column (7) so connected to the fastening element as to be rotatable about its longitudinal axis, a horizontal rear, supporting bar (8) connectedto the column, and a front supporting bar (9) carrying a forearm rest (20), on which the user's forearm is to rest, and being telescopically displaceable in relation to the rear supporting bar (8) in order to form an armrest that can be lengthened and shortened as desired. The rear supporting bar (8) is so mounted on the column (7) as to be pivotable about a horizontal transverse axis (10). A spring means (15, 16, 17, 18, 19) is arranged to maintain the tear supporting bar (8) in an initial position and to counteract, with an adjustable spring pressure, pivotal movement of the rear supporting bar (8) about the horizontal transverse axis (10) caused by a depression of the forearm rest (20).
Patent CA-2161011-A1 (CA)
Title: Xanthine derivatives
Inventor: SUZUKI FUMIO
IPC: C07D473/06
Filed: 1995-02-23
Abstract: A xanthine derivative represented by general formula (I) or a pharmacologically acceptable salt thereof, wherein R1, R2 and R3 are the same or different from one another and each represents hydrogen, lower alkyl, lower alkenyl or lower alkynyl; R4 represents lower alkyl or (un)substituted aryl;  R5 and R6 are the same or different from each other and each represents hydrogen, lower alkyl or lower alkoxy, or R5 and R6 are combined together to represent -O-(CH2)p-O- (wherein p represents an integer of 1 to 3); n represents 0, 1 or 2; and m represents 1 or 2. The compound has an adenosine A2 receptor antagonism and is useful for treating or preventing various diseases caused by the hyperfunctioning of adenosine A2 receptors, such as Parkinson's disease, senile dementia, depression, asthma or osteoporosis.
Patent CA-2162082-A1 (CA)
Title: Process for preparing alkanephosphonic anhydrides
Inventor: MOLLENKOPF CARL CHRISTOPH
IPC: C07F9/38
Filed: 1995-11-03
Abstract: Process for preparing alkanephosphonic anhydrides of the formula (I) (see formula I) where R is straight-chain or branched unsubstituted C1-C6-alkyl and n >= 3, which comprises pyrolytically eliminating water from an alkanephosphonic acid of the formula (II) or a pyroalkanephosphonic acid of the formula (III) (see formula II,III) where R is straight-chain or branched Cl-C6-alkyl, without addition of solvent and removing the water from the reaction mixture by means of an inert gas stream.
Patent CA-2162097-A1 (CA)
Title: Vending machine audit monitoring system
Inventor: OSTENDORF EUGENE G
IPC: G07F5/18
Filed: 1995-11-03
Abstract: An audit monitoring system (10) is provided for use with any of a multiplicity of different coin operated vending machines (300). The audit monitoring system includes an interface assembly (102) for use in replacing an existing data link (330) within vending machine (300). The interface assembly (102) is coupled to an audit monitoring assembly (100) which interprets the communications signals transferred between a controller (310), coin changer (322) and bill validator (324) of vending machine (300). Audit monitoring assembly (100) is powered from a power supply (302) of vending machine (300) and includes interface circuitry (110, 120, 130) for receipt of digital logic level signals, serial data or relay logic signals from vending machine (300). Additionally, the data retrieval terminal (20) may be removably coupled to the audit monitoring assembly (100) through either a hard wired coupling (254) through a serial interface (250) or alternately by means of infrared optical signals (12, 22) through an infrared interface circuit (260).
Patent CA-2162573-A1 (CA)
Title: Coating removal apparatus
Inventor: FUKUDA TSUTOMU
IPC: B08B7/00
Filed: 1994-03-10
Abstract: In removing a coating present on the surface of a structure by means of laser beams, a monitoring device monitors the removal progress and, at the same time, a control device controls laser firings so as to scan the positions to be laser-fired with laser-beams while removing the coating completely, whereby it is possible to automatically perform removal operations on various structures. Since the coating removal operations are monitored by the monitoring device, the complete removal is obtained.
Patent CA-2164543-A1 (CA)
Inventor: HAMBLEN ROGER ALEXANDER
IPC: H04W88/02
Filed: 1995-12-06
Abstract: A microphone arm assembly for vehicles is provided, whereby a microphone for wireless communications such as cellular telephones, or citizens'band or two-way radios, is installed in the vehicle in such a manner that the microphone may be selectively positionable near the mouth of the user so that the radio frequency operating device may be used for speech in a hands-free manner. The microphone arm assembly is folded up, out of the way, typically over the driver's door, and is adjusted by various pivotal and swivel movements,telescopic arm length extension, and by a gooseneck for final positioning of themicrophone in the region of the mouth of the driver. The voice signal wires, and power wires for the microphone when it is a condenser microphone, pass through the microphone arm assembly so as to provide radio frequency shielding therefor. The microphone arm assembly is mounted on a non-conductive base so that it is electrically isolated from the body of the vehicle, and so as to preclude hum due to ground loops occurring in the audio frequency portions of the telephone or radio installation in the vehicle. A clip is provided so that the microphone arm assembly may be removably installed in the vehicle without the necessity for drilling holes, by being mounted to door trim or the head liner ofthe vehicle. Superior voice transmission from the vehicle to the party being called is achieved, in a hands-free operating mode, without obscuring the driver's vision.
Patent CA-2165445-A1 (CA)
Title: A method of producing a coreless roll of fibre-based, web-like material
Inventor: ANDERSSON ANDERS
IPC: B65H19/22
Filed: 1994-07-05
Abstract: A method of producing a coreless roll from a web of fibre-based material, particularly soft crêpe paper or some other nonwoven material, for instance cleaning paper, kitchen paper or toilet paper. The web (2) is wound onto a non-expandable winding-on axle (3) having a diameter of between 35-100mm. In order to facilitate withdrawal of the axle from the roll after winding the web onto the roll, a friction-reducing agent (4) is applied to the axle or to the first turn or turns of the web. This agent may be water, to which a surfactant or some other lubricant is optionally added or oil, triglyceride, silicone, TeflonTM or the like. The axle (2) may be heated, either electrically or with the aid of steam, in conjunction with applying the agent, therewith further reducing the friction between web and axle.
Patent CA-2165934-A1 (CA)
Title: A brassica sp. polygalacturonase gene promoter
Inventor: ROBERT LAURIAN S
IPC: C12N9/24
Filed: 1995-12-21
Abstract: A Brassica sp. genomic clone containing a polygalacturonase gene promoter was isolated. This promoter directs high levels of transcription in the pollen. When the promoter was fused with the GUS gene and introduced into B. napus by Agrobacterium mediated transformation, this promoter controlled GUS expression in microspores and pollen in transgenic B, napus plants. Expression occurred between the late uninucleate microspore stage and the mature pollen grain stage.      GUS activity was also identified in tapetal tissue at the binucleate microspore stage. There was no GUS expression in other tissues such as root, stem, leaf, sepal, petal or pistil. This promoter will be useful for the temporal and spatial control of endogenous gene expression in plants.
Patent CA-2166820-A1 (CA)
Title: Resilient lifter for wire coil blast cleaning apparatus
Inventor: PEDERSEN JOHN
IPC: B24C1/08
Filed: 1996-01-09
Abstract: The present invention relates to an improved blast cleaning apparatus for cleaning coiled wire with abrasive cleaning material.  A prior art apparatus for blast cleaning wires  comprises  an  elongated boom provided with  annular splitters for longitudinal separation of wire coils and metal lifters  for  radial  separation  of  wire  coils  to  expose substantially all of the surface of the wires to the abrasive cleaning material.  Due to the hardness of the lifters, some abrasive cleaning material becomes embedded in the wire and causes problems with subsequent processing steps.  The present invention provides a blast cleaning apparatus having resilient lifters  which  overcome  this  and  other  difficulties.          Preferably, the lifters according to the present invention are made of polyurethane and are used in combination with a conventional boom with or without splitters.
Patent CA-2166915-A1 (CA)
Title: Intracavitary catheter for use in therapeutic radiation procedures
Inventor: D ANDREA MARK A
IPC: A61B17/22
Filed: 1996-01-10
Abstract: The present invention is for radiation diagnosis and/or therapy in or near body cavities accessible through existing orifices. At least one balloon of a catheter and balloon assembly is inflated by fluid communication through the catheter. Several embodiments provide for diagnostic procedures or radiation therapy, at times in association with one or more of formation of seals, control of movement, nutrient passage and drainage. When radiation therapy is provided, rods or other radiotherapeutic items are secured, positioned or inserted along the contour of the surface of the balloon and are thus deployed to treatment position by balloon inflation.
Patent CA-2166934-A1 (CA)
Title: Improved system for selectively effecting electrical connection among a plurality of loci in a housing
Inventor: MORLEY EDWIN R
IPC: H01R13/11
Filed: 1996-01-10
Abstract: An improved system for selectively effecting electrical connection intermediate a plurality of electrical leads at a plurality of loci in a housing.          The housing includes a first housing portion and a second housing portion configured to engage in a predetermined orientation during assembly of the housing.  The system includes an electrical bridging member located in one housing portion.  The bridging member a plurality of bias units, each of which is situated substantially at a respective locus of the plurality of loci.  The system further includes a bearing member which is located in the other housing portion and includes a plurality of urging units.  There is a respective urging unit substantially in register with each respective locus when the first housing portion and the second housing portion are in the predetermined orientation.  The plurality of urging units cooperate with the plurality of bias units during assembly to engage each respective bias unit with a respective electrical lead of the plurality of electrical leads at each respective locus to selectively electrically connect the respective electrical leads.
Patent CA-2167432-A1 (CA)
Inventor: ITOJIMA MITSUHIKO
IPC: G03B27/40
Filed: 1996-01-17
Abstract: A photographic exposure apparatus comprises: an exposure lens; a lens carriage having a light shield region and a lens mount region; a switching means for moving the lens carriage to locate selectively the lens across the axis of exposure light; a first shutter for controlling the exposure light; and a mechanical linking means responsive to the movement of the lens carriage for closing and opening the second shutter, in which when the lens on the lens carriage is dislocated from the axis of exposure light in a standby mode, the mechanical linking means closes the second shutter to interrupt the scattered light, and when the lens is across the axis of exposure light in an exposure mode, the mechanical linking means opens the second shutter.
Patent CA-2169801-A1 (CA)
Title: Rotating pliers for fastening the reinforcement rods of an armature in the building industry involving concrete casting
Inventor: VERLATO GIUSEPPE
IPC: E04G21/12
Filed: 1996-02-19
Abstract: The rotating pliers has an arm (1) provided at the extremity with a screw having a long pitch (2), a sleeve (3) which rotates on the screw (2).  The pliers rotate when the sleeve (3) is grasped after the pliers have been closed by means of jaws (4) and (5).  The pliers rotate on the fastening thread (6) of the armature (7) after the motion of lever (11).  This lever is provided at the opposite extremity with pin (12).  The latter slides in the shaped groove (13).  In this manner, the fastening thread (6) is grasped and is caused to rotate by traction applied to sleeve (3) and it is not necessary to cause the rotation of the pliers by hand and substantial reduction of the physical work by the operator is achieved.
Patent CA-2170161-A1 (CA)
Inventor: SCHAP WILLIAM WILSON
IPC: F16F9/342
Filed: 1994-08-16
Abstract: An infinite hydraulic check (40) for use with a door that maintains the door in any position until an appropriate check effort is applied to release the door from the position. The check includes an annular needle cavity (114) with a closed first portion (118) and a second portion (120), the second portion (120) including a by-pass port (122) along an inner circumference.  An annular needle (126) is received in the needle cavity (114). The by-pass port (122) is obstructed when the needle (126) is in a partial open position. Hydraulic fluid driven through an inlet orifice (154) gradually displaces fluid from the closed first portion (118) of the cavity (114), forcing the needle (126) further into the cavity (114), unobstructing the by-pass port (122) and permitting increased fluid flow. The controlled activation of the damped check release (40) reduces noise.
Patent CA-2171245-A1 (CA)
Inventor: MARTIN JOHANNES JOSEF EDMUND
IPC: F23J1/02
Filed: 1996-03-07
Abstract: The arrangement for treating combustion residues of a combustion installation comprises an ash discharges (1) into which opens a fall shaft (2), into which the solid combustion residues fall from a furnace grate. The ash is conveyed from the ash discharges (1) into the discharge shaft (7) via a diagonally ascending push-out chute (3) by means of a push-out ram (6) whose operating rate is so adjusted that the ash (11) is piled up in the fall shaft (2) in a tower formation reaching above the liquid level (9). Fresh water or a chemical is introduced into the discharge shaft (7) via an inlet (8). The ash discharges water present in the ash discharges and charged with fine particles is drained into a hermetically sealed settling tank (17) via a draw-off duct (18). Ash discharges water, with which a chemical can be mixed via another line (19a), is fed from the upper region of the settling tank (17) by a pump (20) via a return line (19) to spray nozzles (13) which are arranged in the upper region of the fall shaft (2). Ash discharges water which is enriched with solids particles is drawn off from the bottom of the settling tank via another pump (23) which is arranged in an outlet line (21) proceeding from the settling tank. This is effected at a rate such that solids particles having a diameter of up to 2 mm are carried away with the ash discharges water which is drawn off through the draw-off duct (18).
Patent CA-2171794-A1 (CA)
Inventor: CANOVA ENRICO
IPC: B06B1/10
Filed: 1996-03-14
Abstract: The device has springs arranged diametrically opposite with respect to a shaft that is coupled to a generator of torsional vibrations.  The springs are rigidly coupled between first supporting elements that rotate with the shaft and second supporting elements that are rigidly coupled to a gear system that is freely mounted on the shaft. The gear system is coupled to a motor for actuating rotation of the shaft.
Patent CA-2176306-A1 (CA)
Inventor: GUERILLOT DOMINIQUE
IPC: G01V1/30
Filed: 1996-05-10
Abstract: Un modèle de simulation du comportement d'un gisement souterrain est défini à partir de la connaissance géologique initiale et des données disponibles. Il permet de faire des prévisions de production à partir de paramètres représentatifs des données initiales. La méthode consiste essentiellement à définir un ou plusieurs scénarios possibles d'évolution de la production en créant, pour chacun de ces scénarios, des données nouvelles de production correspondant à des hypothèses sur les états futurs du gisement. On cherche alors, pour chaque scénario envisagé, s'il est possible d'ajuster les paramètres disponibles du modèle de simulation, compte-tenu des contraintes du modèles géologique initial, pour que le modèle de simulation restitue à la fois les données de productions mesurées et les données rajoutées. La méthode peut être utilisée pour quantifier les incertitudes sur les prévisions de production en recherchant les extrêmes min/max des valeurs futures de la production. Application à la production d'hydrocarbures par exemple.
Patent CA-2178351-A1 (CA)
Inventor: PALMER THEODORE R
IPC: E04F11/18
Filed: 1996-06-06
Abstract: A guard rail scaffold assembly for mounting on or around a surface of a building or like structure, comprises a guard rail assembly member.   A plurality of fastening pads are fastened to the selected surface, either by screws, or by an adhesive, or both, each pad having a pivot part thereon.  A guard rail assembly member is attached to each pad by a pivot pin, each assembly member comprising a base member carrying the other pivot part.   The base member also carries surface engaging members on opposite sides of the pivot which engage the structure surface.   A first post member extends at a right angle from the base member and, when the scaffold is to be mounted on a horizontal surface, this constitutes a guard rail support member or has a guard rail support member mounted thereon, this support member carrying retainer members which receive the horizontal guard rails.   When the scaffold is to be mounted on a vertical surface each assembly member also comprises a second post member releasibly mountable on the first post member, and extending at a right angle thereto, this second post member receiving the guard rail support member instead of the first post member.  In the latter case an adjustable length retainer member extends between the base member and the second post member parallel to the first post member. The assembly can thus be fastened either to a horizontal surface of the building, or to a vertical surface, or both, as dictated by which is possible, or at the discretion of the installer.
Patent CA-2179025-A1 (CA)
Title: Obturator and tracheostomy tube containing the obturator
Inventor: STUART J MICHAEL
IPC: A61M16/04
Filed: 1994-12-12
Abstract: This invention is a plastic obtu-rator suitable for use in a tracheostomy tube (14) comprising a handle (2) at its proximal end, a bullet shaped tip (3) at its distal end, and an outer cannula sup-porting body (1) between the handle and the tip, which outer cannula sup-porting body (1) contains sectionalized flex points and laterally extending sup-porting surfaces along its length. Also described is a tracheostomy tube (14), preferably one that is flexible contain-ing the plastic obturator of the inven-tion.
Patent CA-2179357-A1 (CA)
Inventor: PENISSON DENNIS J
IPC: E21B19/16
Filed: 1996-06-18
Abstract: A support 10 is provided for supporting both a power tong PT and a backup tong BT during makeup of a threaded connection TC between a lower oilfield tubular LT and an upper oilfield tubular UT.  The support 10 includes a plurality of legs 12 and 14 each extending upwardly from the backup tong BT, a support plate 18 affixed to an upper end of the plurality of legs for engagement  with the upper oilfield tubular, and a  compensation member  32, 44, 60 secured to the torque plate 18 for supporting the power tong PT relative to the  backup tong  BT while allowing vertical movement of the power tong relative to the backup tong during makeup or break out  of  the threaded connection.
Patent CA-2184501-A1 (CA)
Title: Air Seal for Humidifier Water Bottle
Inventor: STANEK TERRENCE L
IPC: F24F1/02
Filed: 1996-08-29
Abstract: A water bottle for use in a humidifier is disclosed. The water bottle includes abottom wall, a top wall and a circumferentially extending side wall extending between the bottom wall and top wall. A selective water dispenser, generally in the form of a water bottle dispensing cap, is mounted over a water dispensing opening formed in one of the walls of the water bottle. An air seal is provided for a water filling opening that is formed in one of the walls of the water bottle. The air seal, independent of a water seal, utilizes negative pressure differential in the water bottle that is generated during the dispensing of the water throughthe water dispensing opening to provide a vacuum air seal for the water filling opening independent of the pressure that may be required to complete the water seal for the water filling opening.
Patent CA-2185687-A1 (CA)
Title: Method and device for installing light-weight panel units
Inventor: INKEROINEN JUKKA
IPC: E04F21/18
Filed: 1995-03-17
Abstract: A method for installing light-weight panel units according to which the light-weight panel units (22a) are installed on a wall or roof in such a way that at least two panel units at a time are moved to the vicintiy of the installation site. After that, the panel units that have been moved are installed in place one by one. The installation device incorporates an intermediate storage unit (20), in which can be stored at least two light-weight panel units (22a). The intermediate storage unit can be moved during installation to the installation site in the vicinity of a wall or roof and it incorporates equipment (28) which transfers one light-weight panel unit at a time to the installation site.