baber/WOPTO huggingface dataset:
Patent CA-2066870-C (CA)
Title: Gas-fired heater
Inventor: OVERALL JOHN C K
IPC: F24H3/00
Filed: 1992-04-22
Granted: 1995-04-04
Abstract: A  sealed  combustion,  low  profile  gas-fired baseboard heater has a heat exchanger which is U-shaped, and  which  has  upper  and  lower  horizontal  sections. Appropriate inlets are provided for air and combustion gas, and a gas valve.  The air inlet may be coaxial with an exhaust for combustion gases.  The heater may include a combustion blower, in which case the heat exchanger can include fins and other features to improve heat transfer. A natural draft version includes a larger bore tubular heat exchanger.   Ignition can be by way of a pilot. Alternatively, a hot surface igniter, with safety lockout-timing device, can be used.
Patent CA-2067016-C (CA)
Title: Mold for injection molding preform with undercut lip and plastic vessel
Inventor: NAKAMURA YOSHINORI
IPC: B29C45/44
Filed: 1992-04-24
Granted: 1996-01-23
Abstract: The present invention provides an injection mold having an injection core mold for defining the inner wall of a lip portion in a preform having an undercut area, a first lip cavity mold for defining the outer wall of the lip portion having no undercut, and a second lip cavity mold for defining the outer wall of the lip portion having the undercut area.  In an initial release after the injection molding process for the preform, the second lip cavity mold is first moved upwardly to secure a space wherein there is no obstruction around the outer periphery of the undercut area.  Thereafter, the injection core mold is upwardly moved such that the second injection core mold can be forcibly released from the molded preform while resiliently deforming the undercut area in the outward direction, utilizing the space so formed.  The barrel portion of the preform so molded is biaxially stretched to provide a so-called roll-on type biaxially oriented vessel having a ball received in the lip portion thereof.
Patent CA-2067145-C (CA)
Inventor: MOORE ARTHUR W
IPC: C23C16/56
Filed: 1991-08-08
Granted: 1999-02-16
Abstract: Procédé de production d'un revêtement sans fissure en nitrure de bore pyrolytique sur une structure en carbone selon lequel le revêtement est formé dans une atmosphère contrôlée contenant des vapeurs d'ammoniac et un halogénure de bore gazeux dans une plage de température comprise entre 1500  C et 1700  C.
Patent CA-2072454-C (CA)
Inventor: VEITH MICHAEL WILLIAM
IPC: B32B5/16
Filed: 1992-06-26
Granted: 2003-04-29
Abstract: Disclosed is an absorbent composite including a web formed from a mixture of fibrous material and particulate absorbent material. The web contains from about 15 to about 30 weight percent water. The described absorbent web is capable of containing relatively large quantities of particulate absorbent materials while maintaining an acceptable degree of flexibility.
Patent CA-2076499-C (CA)
Title: Wireline hydraulic retrieving tool
Inventor: OBREJANU MARCEL
IPC: E21B31/12
Filed: 1992-08-20
Granted: 1994-07-26
Abstract: ABSTRACT         In wireline operations, it is known to retrieve objects stuck in a well bore by application of a retrieval force to the object through a wireline and wireline pulling tool attached to the wireline and engaged with the object.  The present invention provides a wireline retrieving tool adapted to apply a large retrieving force on an object in a well bore without transmitting the force through the wireline.  The retrieving tool is adapted to be lowered into the well bore on the wireline until the pulling tool engages the stuck object.  Slips carried on the tool then anchor the tool against the easing of the well bore and a controlled retrieving force generated in the tool by an electric motor and hydraulic pump is applied between the easing and the pulling tool to dislodge the object.
Patent CA-2083031-C (CA)
Title: Power stacking apparatus
Inventor: HOLBROOK RUSSELL W
IPC: B65H29/68
Filed: 1992-11-16
Granted: 1997-01-14
Abstract: A power stacker for collecting delivered articles such as envelopes from a mailing machine is comprised of a support housing having a deck fixably mounted along the housing.  A registration wall is fixably mounted to the housing and extending generally perpendicular relative to the deck.  A stack wall is slidably mounted to the housing at one end of the deck and has a reclined surface extended generally upwardly from the deck, the stack wall being slidably mounted to the housing such that the stack wall can be horizontally displaced relative to the deck.  Support rods are provided for providing article support between the deck and displaced stack wall as well as between the registration and displaced stack wall.  Threaded hubs are provided for causing the delivered articles to be collected against the stack wall and assume a generally parallel stacked orientation generally parallel to the reclined surface.  A power stack wheel assembly is supported in a cantilevered fashion from the registration wall.  Stack wheels are overrunning on a clutch until power to climb envelope lead edges is needed.
Patent CA-2083400-C (CA)
Title: Horizontal dewatering system
Inventor: JUSTICE DONALD R
IPC: E02B11/00
Filed: 1991-05-21
Granted: 1996-12-31
Abstract: Water is removed from an underground perforated pipe (14) by a submersible pump (20) in-serted into an imperforate pipe (12) extending from above ground to below ground level for commu-nication with the perforated pipe (14). An inflatable bladder (32) seals the submersible pump (20) to the inner wall (13) of the im-perforate pipe (12) for facilitating suction of water from the perfo-rated pipe (14) into the imperfo-rate pipe (12). Water is drawn in-to a proximal end of the pump (20) and expelled out of a distal end of a pump, and out of the im-perforate pipe (12) above ground level. By sealing the pump (20) to the inner wall (13) of the imperfo-rate pipe (12), the pump (20) is capable of drawing water from an underground perforated pipe lo-cated at a depth greater that the pumping capacity of the pump (20) for drawing up water.
Patent CA-2089048-C (CA)
Title: Heating cable with enhanced flexibility
Inventor: HEIZER GLENWOOD FRANKLIN
IPC: H05B3/56
Filed: 1993-02-08
Granted: 1997-06-17
Abstract: A heating cable  includes  at  least  a  pair of  elongated electrode wires, each of which is coated with a first layer of insulating material that is at least partially stripped off said wires at spaced, alternating locations.  A resistive heater wire is spirally wound around a core of insulating material, to form an elongated resistor core.  The elongated resistor core is spirally wound around the electrode wires whereby the heater wire is brought into electrical contact with the electrode wire at the alternating locations, to electrically connect same with the resistive heater wire.  A second layer of an insulating material is provided over the resistor core and forms an outer surface for the cable.
Patent CA-2091663-C (CA)
Inventor: BURKHARDT FREDERICK JOSEPH
IPC: A61K38/00
Filed: 1993-03-15
Granted: 2007-10-30
Abstract: Provided are compounds of the formula (1): see formula (1) wherein R' is hydrogen, methyl or NH2C(O)CH2-; R" is methyl or hydrogen; R is hydroxy or hydrogen; R1 is hydroxy, hydrogen, or hydroxysulfonyloxy; R7 is hydroxy, hydrogen, hydroxysulfonyloxy or phosphonooxy; R2 is a novel acyl side chain. Also provided are novel formulations, methods of inhibiting fungal and parasitic activity, and a process for preparing dideoxy (R=H) forms of the compounds.
Patent CA-2097601-C (CA)
Inventor: ABERG ANDERS
IPC: H02J3/36
Filed: 1992-11-03
Granted: 1999-02-23
Abstract: A method and a device for controlling at least one of a first power network (1) and a second power network (3), which are interconnected by means of at least two conductors (2), wherein the first power network comprises at least one current or voltage generator (5) and at least one of the first and the second power networks compri ses at least one controllable network element (4). A section B-B through the conductors is defined such that the power networks are located on different sides of the section and at least one line current (IL(K)) and at least one voltage (V(j), E(n)) are sensed at the section. At least one base mode (BM(p)) is formed in dependence on sensed current(s) and sensed voltage(s) and at least one control signal (C(r)) is generated in dependence on the base mode(s) and is supplied to the network element(s) in order to influe nce currents and/or voltages, occurring in section B-B or in the second power network and generated by the current or voltage gener ator(s).
Patent CA-2105548-C (CA)
Inventor: GIBLER CLINTON DAVID
IPC: H04M1/215
Filed: 1993-09-03
Granted: 1997-04-08
Abstract: Coupling apparatus for a telephone handset (500) comprises a handset-coupling cradle (100) having a dome (115) at one end thereof for locating the earpiece (receiver) of the handset, and sound ports (122) at the other end of the cradle in the region where the mouthpiece (microphone) of the handset resides. The handset-coupling cradle is shaped to accommodate a variety of different handset styles (500, 600). An inductive sensor (410) is mounted within the dome and it responds to electromagnetic fields generated by the handset receiver. Such a sensor eliminates the need to closely couple the receiver to the apparatus. A low acoustic impedance loudspeaker (420) is mounted beneath the sound ports for acoustically coupling signals to the handset's microphone. Such a loudspeaker eliminates the need to closely couple the microphone to the apparatus.
Patent CA-2105966-C (CA)
Inventor: WILLIAMS JAMES M
IPC: H04L7/04
Filed: 1993-01-04
Granted: 1997-09-30
Abstract: Unité portative (101) capable d'acheminer et de recevoir des appels sur des systèmes téléphoniques sans fil (115) et cellulaires (103). Une unité portative (101) associée à une station de base sans fil (115) peut transmettre automatiquement un appel d'arrivée au système téléphonique (111) où se trouve l'unité portative sans inconvénient pour l'utilisateur. En outre, l'unité portative (101) associée à une station de base sans fil (115) peut acheminer automatiquement un appel en cours avec l'unité portative (101) entre le système téléphonique sans fil (115) et le système téléphonique cellulaire (103) quand l'unité portative (101) passe d'un système à l'autre.
Patent CA-2123756-C (CA)
Inventor: PADGETT PAUL O
IPC: B28C9/00
Filed: 1994-05-17
Granted: 1998-09-29
Abstract: A continuous multi-component slurrying process at an oil or gas well comprises flowing at least three separate streams of different essential materials directly into a predetermined mixing unit at the oil or gas well, wherein each of the essential materials is required to obtain a predetermined defining characteristic of the slurry.
Patent CA-2124942-C (CA)
Title: Cleaning apparatus
Inventor: GODDARD FENTON
IPC: F02B77/04
Filed: 1992-12-03
Granted: 2004-04-20
Abstract: The specification discloses a cleaning apparatus (2) for cleaning machine and engine parts comprising a trough (4) in which the cleaning is performed. A lid (6) is connected to the trough (4) and is movable between a closed position covering the trough and an opened position allowing access to the trough. A first cleaning fluid dispenser in the form of a manifold (8) is located within the apparatus (2). Also provided is a portable cleaning fluid dispensing gun (10) or brush (12) which is connectable to the apparatus (2).    The lid (6) operatively cooperates with the manifold (8), gun (10) or brush (12) so that when the lid (6) is in the closed position, cleaning fluid is dispensed through the manifold (8) and when the lid (6) is in the opened position, cleaning fluid can be dispensed through the gun (10) or brush (12).  A pump (14) is provided far pumping the cleaning fluid to the manifold (8), gun (10) or brush (12). A supply of the cleaning fluid is held within the tank (8) formed integrally with the apparatus (2). A ball valve (32) housed within the pump (i4) selectively directs cleaning fluid to the manifold (8) or with the gun (10) and brush (12). The ball valve (32) is provided with a control arm (34), the manipulation of which changes the state of the ball valve. The control arm (34) is pivotably connected to one end of a lever (36). An opposite end of the lever (36) is pivotably connected by pivot pin (37) to arms (38 and 39), An end of the arm (38) distant from lever (36) is pivotably connected to an outside wall of the trough (4) in the vicinity of the lid (6). An end of arm (39) is pivotably connected to the lid (6). By this arrangement of levers, the opening or closing of the lid (6) changes the state of the ball valve (32).
Patent CA-2125579-C (CA)
Title: Ulcer prevention treatment composition and method
Inventor: FUISZ RICHARD C
IPC: A61K31/192
Filed: 1992-12-16
Granted: 2005-06-21
Abstract: Anti-ulcer compositions are disclosed having therapeutic agents dispersed in a soluble matrix formed by melt spinning the therapeutic agent with a carrier and hydrogel. Methods of treating ulcer-bearing tissue and preparing the matrix are also disclosed. One embodiment includes use of gastric irritating bio-affecting agents in which case the composition is preventative as well as therapeutic.
Patent CA-2130059-C (CA)
Inventor: RAJECKI JAMES A
IPC: F16L5/02
Filed: 1994-08-12
Granted: 1999-01-19
Abstract: A device for installation in a building wall or floor to provide a passthrough opening for pipes, tubing, and the like includes an axially open first end and a second  end  closed by a transverse wall.   A ring of intumescent material fills the axially open first end of the housing, and in one embodiment, a foam plastic filler material  substantially  fills  the  housing  between  the intumescent ring and the transverse wall.  The intumescent ring can be provided with a central opening sized to engage with an interference fit a tube or pipe passing through the device.    Alternatively,  the  ring  can  support  a  tube coupling for providing a tubular connection within the device to receive and couple pipes on opposite sides of the building wall or floor in which the device is installed.
Patent CA-2130324-C (CA)
Inventor: LONG RICHARD L JR
IPC: A01C1/06
Filed: 1994-08-17
Granted: 2001-10-30
Abstract: An apparatus is provided for uniformly coating particulate material. The apparatus includes a frame, a cylindrical drum rotatable about an axis tilted with respect to a horizontal plane, and a spray nozzle extending into the drum so as to spray a coating solution onto the particulate material tumbled within the rotating dry. Perforations in the side wall of the drum allow a flow of air through the drum so as to dry the material within the drum as it is coated with solution. A vacuum system removes the coated seeds from the drum without manual handling. In operation, the seeds form a dense mass, and migrate away from the mass as the seeds increase in size and weight from the sprayed coating. Eventually, all of the particles are uniformly coated, and thus a new mass is formed and the process repeated until the material reaches a desired size.
Patent CA-2133356-C (CA)
Inventor: SMITH DAVID BRIAN
IPC: G02B6/44
Filed: 1994-09-30
Granted: 1997-12-16
Abstract: An optical fibre assembly for blown installation, comprises a fibre unit having at least one optical fibre.          The unit has a coating comprising an external layer of a material containing hollow glass beads at least some of which project from the outer surface of the external layer.  The coating also has an inner, buffer layer of a material having a lower modulus of elasticity than that of the material of the external layer and an intermediate layer of material disposed between the external and inner layers.
Patent CA-2142833-C (CA)
Inventor: HOLLITT MICHAEL JOHN
IPC: G21F9/14
Filed: 1993-08-13
Granted: 2003-04-29
Abstract: The specification discloses a process far stabilising radionuclides extracted during the upgrading of minerals. The process comprises forming a composition of a radionuclide and a component and roasting the composition so that the component forms a crystalline phase having a structure that binds the radionuclides. Suitable components include a compound of a lanthanide and/or phosphorus and zirconia. Zirconia in its cubic form is useful in stabilising uranium and thorium.
Patent CA-2143950-C (CA)
Inventor: BUCHHOLZ DALE R
IPC: H04L29/06
Filed: 1994-06-27
Granted: 2000-04-11
Abstract: A packet switching system (100) having a packet switch (140) employs an acknowledgment scheme in order assure the delivery of all fragments (310) comprising a fragmented data packet (300) to improve overall system throughput during the handling of packets (310) that require reassembly. When packet fragments (310) are lost, corrupted or otherwise unintelligible to a receiving device (92, 94), the acknowledgment scheme permits retransmission of the missing data. In addition, a second acknowledgment signal is scheduled by system processing resources (110) in order to verify the successful delivery of all retransmitted data.
Patent CA-2145392-C (CA)
Title: Esterfication of carboxylate containing polymers
Inventor: MANRING LEWIS EDWARD
IPC: C09D133/00
Filed: 1993-09-23
Granted: 2005-02-08
Abstract: A process for esterifying a polymer containing carboxyl(ate) groups, by maintaining the polymer at 0 °C to 200 °C, where the counterion for the carboxylate groups is a selected ammonium or sulfoxonium ions. Such processes are useful for preparing improved films and coatings, particularly automotive coatings.
Patent CA-2148727-C (CA)
Inventor: MORAND MICHEL
IPC: A47K10/38
Filed: 1995-05-05
Granted: 1999-07-20
Abstract: A dispenser for dispensing sheets of paper towelling from a tubular roll of paper towelling that has perforated lines across it at spaced-apart intervals dividing the towelling into joined together sheets.  The dispenser has a base on which one end of the   towelling roll sits and an opening in the base through which one end of the towelling, from within the roll, is passed in the form of a spiral tail.  This tail is then passed through gripping means beneath the base which both flatten the towel into a band-like strip and grip the strip so that when the strip is pulled beneath the gripping means, the outermost sheet of towelling is torn away along a line of perforations.
Patent CA-2150171-C (CA)
Title: Method and portable testing apparatus for safely testing an autotransformer for power distribution lines
Inventor: MIMEAULT YVAN
IPC: G01R31/06
Filed: 1995-05-25
Granted: 1999-01-05
Abstract: A method and an apparatus are provided for safely testing an autotransformer of power distribution lines which has an identified centre tap ground connector, a primary winding terminal and a secondary winding terminal. The method for safely testing the autotransformer includes the steps of disconnecting the terminals and connector of the autotransformer from the distribution lines, applying a first testing AC voltage having a maximum value of substantially  one  volt  only  between  a  first  of  the terminals and the ground connector, measuring a first value of an AC voltage between the first terminal and the ground connector, and measuring a second value of an AC voltage between  the  second  of  the  terminals  and  the  ground connector.  Thereafter, the method includes the steps of applying a second testing AC voltage having a maximum value of substantially one volt only between the second terminal and the ground connector, measuring a third value of an AC voltage  between  the  second  terminal  and  the  ground connector, and measuring a fourth value of an AC voltage between the first terminal and the ground connector. Then, the method further includes steps of comparing the four  measured  values  to  predetermined  constants,  and generating   corresponding   signals   indicating   that autotransformer is short-circuited or that the same is open-circuited. When, the autotransformer being test is not short-circuited nor open-circuited, the method includes the step of generating a signal indicating that the first terminal is the secondary winding terminal or the first terminal  is the primary winding terminal,  whereby the primary and secondary terminals are clearly identified.
Patent CA-2155683-C (CA)
Inventor: PERUSEK ROBERT V
IPC: F16K17/30
Filed: 1995-08-10
Granted: 2004-10-19
Abstract: A poppet type excess flow valve comprises a body forming a valve chamber having a first portion of a first diameter adjacent a first end and a second portion of a second smaller diameter adjacent second end. A valve seat is located between the first and second portions of the valve chamber. A poppet element is mounted in the valve chamber and includes a first section in the form of a hollow cylindrical body extending into the second portion of the valve chamber and terminating therein in an open end. The outer diameter of the hollow cylindrical body section is only slightly less than the diameter of the second portion of the valve chamber for guided sliding movement therein. The poppet element further includes a second section located in the first portion of the valve chamber and including an end wall carrying a valving surface extending radially outward for cooperation with the valve seat. A compression coil spring maintains the poppet element continually biased under a predetermined force toward the inlet port, and flow passages are formed through the hollow cylindrical body portion of the poppet element at a location closely adjacent the valving surface.
Patent CA-2156715-C (CA)
Inventor: MAHER COLIN
IPC: B01D29/11
Filed: 1994-10-13
Granted: 2002-01-08
Abstract: L'invention concerne un filtre tamis amélioré. Ce dispositif comporte un crible (24) qui reçoit un mélange/des solides provenant d'une cuve d'alimentation (16) en vue d'assurer une séparation. Pour éviter tout écoulement non homogène du mélange sur le crible, en raison, par exemple, d'un montage non horizontal, ou toute éruption ou turbulence d'entrée, un déversoir (80) est prévu qui surélève le niveau du mélange d'eau au-dessus du crible (24) sur une hauteur prédéterminée.
Patent CA-2158715-C (CA)
Title: A precipitator
Inventor: BROWITT RODNEY
IPC: B03C3/014
Filed: 1995-09-20
Granted: 2005-11-08
Abstract: An electrostatic precipitator (80) including a cylindrical tube (81) the upper end of which is provided with a gas outlet (87) while the lower end is provided with a gas inlet (88). Mounted adjacent the upper end of the tube (81) is an ion source (95).  Adjacent the lower end of the tube (81) is a diaphragm (92) which is vibrated by an ultrasonic transducer (93). A liquid is supported on the diaphragm (92) and caused to vibrate in order to produce a mist. An electric potential is established between the ion source (95) and the liquid so that carbon particles contained in the gas stream passing through the precipitator are trapped by liquid droplets which are then conveyed back to a reservoir for the liquid.
Patent CA-2159352-C (CA)
Inventor: HEINIG CHARLES F JR
IPC: C02F1/72
Filed: 1994-03-30
Granted: 2005-02-22
Abstract: A method of treating water to kill bacteria therein includes exposing the water to a silver catalyst in the presence of oxygen to form an active oxidizer in the water. The silver catalyst includes elemental silver deposited on a high surface area alumina matrix. In one form of the method the active oxidizer formed is predominantly hydrogen peroxide, whereas in a second form of the method an oxidizable salt is added to the water so that the active oxidizer formed is predominantly oxidized ions of the salt. The method can be effectively carried out by adding oxygen in the form of O2 ozone to the water prior to exposing it to the catalyst