Patents Represented by Attorney, Agent or Law Firm Philip C. Mendes da
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Patent number: 6855219Abstract: The present invention provides a method for producing a gassed explosive composition, comprising the steps of: (a) providing a base explosive composition comprising at least an emulsion explosive composition containing a source of ammonium ions; and, (b) combining the base explosive composition with a gassing solution subsequent to the formation of the emulsion explosive composition, the gassing solution comprising a pH lowering agent. A gassed emulsion explosive composition is also disclosed.Type: GrantFiled: October 2, 2002Date of Patent: February 15, 2005Assignee: ETI Holdings Corp.Inventors: Ivana Alilovic, Earl Reckzin
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Patent number: 6833483Abstract: The invention disclosed relates to the production of alcohols. A first aspect of the invention relates to a process for production of alcohols, and in particular to a process for the catalytic hydration of an olefin to the corresponding alcohol in substantially anhydrous form, under selected mild reaction conditions, and using a selected catalyst. A second aspect of the invention relates to a process for dehydration of an azeotropic mixture, including a first alcohol and water. A hydration reaction between the water in the azeotropic mixture and an added olefin, under selected mild conditions, and using a selected catalyst, produces a product including a second alcohol corresponding to the olefin, and the first alcohol, in substantially anhydrous form.Type: GrantFiled: August 1, 2001Date of Patent: December 21, 2004Assignee: The Governors of the University of AlbertaInventors: Karl T. Chuang, Yung F Chen
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Patent number: 6782585Abstract: A vacuum cleaner has a first cyclonic cleaning stage and a second cyclonic stage positioned in series with the first cyclonic cleaning stage. The second cyclonic stage comprises a plurality of second stage cyclones. A passage connects the first cyclonic cleaning stage outlet and the second stage cyclones inlets. The passage does not increase in cross-sectional area in a downstream direction.Type: GrantFiled: October 5, 2000Date of Patent: August 31, 2004Assignee: Fantom Technologies Inc.Inventors: Wayne Ernest Conrad, Helmut Gerhard Conrad
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Patent number: 6740144Abstract: A device for filtering a dirty air stream in a vacuum cleaner to obtain a clean air stream includes subjecting the dirty air stream to a first cyclonic separation stage to obtain a partially cleaned air stream and subjecting the partially cleaned air stream to an electronic filtration stage and optionally a second cyclonic separation stage to obtain the clean air stream. The electronic filtration stage is optionally removable with a cyclonic cleaning stage from the vacuum cleaner. The electronic filtration stage is optionally an electrostatic precipitator which utilizes air flow through the vacuum cleaner to generate the voltage used by the electrostatic precipitator.Type: GrantFiled: January 14, 2002Date of Patent: May 25, 2004Assignee: Fantom Technologies Inc.Inventors: Wayne Ernest Conrad, Helmut Gerhard Conrad
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Patent number: 6736955Abstract: A process for the production of methanol comprises subjecting a hydrocarbon feedstock partial oxidation and an optional reformer to produce a partial oxidation reactor effluent comprising hydrogen, carbon monoxide and carbon dioxide; adding an amount of a hydrogen feedstock, at least a portion of which is obtained from electrolyzing water, to the partial oxidation reactor effluent to produce a synthesis gas stream having a predetermined ratio of hydrogen to carbon monoxide and optionally to carbon dioxide; subjecting the synthesis gas to methanol synthesis to produce a methanol product stream; and, recycling a substantial portion of the methanol product stream to the partial oxidation reactor.Type: GrantFiled: November 2, 2001Date of Patent: May 18, 2004Assignee: Technology Convergence Inc.Inventor: John M. Shaw
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Patent number: 6736873Abstract: A vacuum cleaner is provided having improved pressure loss characteristics. A fluid supply conduit in flow communication with an inlet to a cyclone is integrally formed as part of a cyclone bin. The present invention may be adapted for use with cyclonic separation devices of all types, including single- and multi-stage cyclonic separators.Type: GrantFiled: December 19, 2002Date of Patent: May 18, 2004Assignee: G.B.D. CorporationInventors: Wayne Ernest Conrad, Helmut Gerhard Conrad, Ted Szylowiec
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Patent number: 6599340Abstract: A cyclonic separation device is provided having improved pressure loss characteristics. A fluid supply conduit in flow communication with an inlet to a cyclone is located and configured to extend longitudinally through a central portion of the cyclone, whereby the sharp bending of the conduit may be reduced, thereby reducing pressure losses in the device, without unduly interfering with the cyclonic flow within the cyclone. The present invention may be adapted for use with cyclonic separation devices of all types, including single- and multi-stage cyclonic separators. The cyclonic separation device may be incorporated in a vacuum cleaner such as an upright vacuum cleaner. A three dimensional conduit which is optionally used with a cyclonic separator is provided.Type: GrantFiled: July 8, 2002Date of Patent: July 29, 2003Assignee: G.B.D. CorpInventors: Wayne Ernest Conrad, Helmut Gerhard Conrad, Ted Szylowiec
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Patent number: 6582489Abstract: An improved two-stage separator uses reusable containers for collecting particles separated by each separation stage. The reusable containers are constructed such that a user empties both reusable containers by the actions required to empty just one of the reusable containers.Type: GrantFiled: December 20, 2001Date of Patent: June 24, 2003Assignee: Polar Light LimitedInventor: Wayne Ernest Conrad
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Patent number: 6568900Abstract: A residential method for treating water with an oxidizing gas operates under elevated pressure. The elevated pressure is obtained by means of a pressurized oxidizing gas source (eg. an air pump) or a Prandtl layer turbine. The elevated pressure of the treated water is optionally used to dispense the treated water. The Prandtl layer turbine may be used to obtain particularly fine bubbles of a gas (eg. bubbles from about 1&mgr; to about 20&mgr; in diameter) in a liquid.Type: GrantFiled: May 7, 2001Date of Patent: May 27, 2003Assignee: Fantom Technologies Inc.Inventors: Wayne Ernest Conrad, Helmut Gerhard Conrad, Richard Stanley Philips
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Patent number: 6526622Abstract: A vacuum cleaner is reconfigurable between at least two positions. The vacuum cleaner has at least one motor and fan assembly for receiving power and producing airflow during use of the vacuum cleaner. The vacuum cleaner also has at least one sensor adapted to sense a change in the position of the vacuum cleaner and to alter the power provided to the at least one motor and fan assembly in response thereto.Type: GrantFiled: April 29, 2002Date of Patent: March 4, 2003Assignee: Fantom Technologies Inc.Inventor: Wayne Ernest Conrad
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Patent number: 6527950Abstract: A water treatment apparatus for treating ozone with water is disclosed. A treatment carafe has a gas conduit so that off gases which accumulates in the carafe may be vented during a treatment cycle. The gas conduit conveys the off gas from the carafe to an ozone destructor via a passageway. An accumulator is provided in the passageway upstream from the destructor to hinder water entrained in the off gas from contacting and damaging the destructor.Type: GrantFiled: January 12, 2001Date of Patent: March 4, 2003Assignee: Chiaphua Industries LimitedInventors: Wayne Conrad, Terry Bohrson, John Stouth, Mike Badgley, Joe Garrison, Shawn Nielsen, Richard Zulik, Deryk Lisicky
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Patent number: 6517731Abstract: A method for treating a liquid (e.g. water) with a gas (e.g. air) containing ozone includes passing air through an corona discharge ozone generator to produce air containing ozone and introducing the air containing ozone into the liquid; and, periodically de-energizing the ozone generator and passing air through the ozone generator.Type: GrantFiled: January 12, 2001Date of Patent: February 11, 2003Assignee: Fantom Technologies Inc.Inventor: Wayne Ernest Conrad
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Patent number: 6509300Abstract: A fracturing fluid is disclosed consisting of an emulsion having a continuous phase of a liquified gas, a discontinuous phase of a hydrocarbon, and a surfactant soluble in the two phases. The surfactant is preferably a hydrofluoroether.Type: GrantFiled: December 23, 1999Date of Patent: January 21, 2003Assignee: B.J Services CompanyInventor: D. V. Satyanarayana Gupta
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Patent number: 6497250Abstract: A multi-port valve has a housing, a flow plug and a stop. The housing defines a valve cavity and has at least three ports. The flow plug is positionable within the valve cavity between a first position, wherein the flow plug is adapted to prevent flow through a selected first port and a second position wherein the flow plug is adapted to prevent flow through a selected second port. The stop is attachable to the housing so that the stop extends into the cavity and is adapted to engage the flow plug to prevent the flow plug from blocking flow through a selected third port.Type: GrantFiled: July 5, 2001Date of Patent: December 24, 2002Assignee: Praher Canada Products Ltd.Inventor: Dimeder Johann
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Patent number: 6491879Abstract: An ozone generator has a dielectric element, first and second opposed end cap members and a gas passageway positioned between a high voltage electrode and a ground plane and positioned internal of the dielectric element, and at least one securring member extending between the opposed end caps whereby the securring member holds the end caps in place.Type: GrantFiled: January 12, 2001Date of Patent: December 10, 2002Assignee: Fantom Technologies Inc.Inventor: Wayne Conrad
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Patent number: 6491815Abstract: A water treatment apparatus for treating ozone with water is disclosed. The water treatment reservoir has a bottom, a fill line, a head space for receiving off gas provided above the fill line and a passageway for conveying off gas from the head space to an off gas venting outlet and for removing water which is above the fill from the water treatment reservoir.Type: GrantFiled: January 12, 2001Date of Patent: December 10, 2002Assignee: Chiaphua Industrires LimitedInventors: Wayne Conrad, Joe Garrison, Shawn Nielson, Richard Zulik, Terry Bohrson, John Stouth, Mike Badgley
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Patent number: 6491811Abstract: A household apparatus for treating water has a water treatment reactor; a dispense water path extending from the water treatment reactor to a dispenser whereby treated water produced in the water treatment reactor exits the apparatus by the dispenser; a filter removably mounted in the dispense water path; and, a sensor, (which may be a timer, a flow rate sensor and/or a back pressure sensor) for monitoring the flow of a treated water through the filter, the apparatus issuing a signal advising a user to change the filter when the time for the treated water to flow through the filter exceeds a predetermined value.Type: GrantFiled: January 12, 2001Date of Patent: December 10, 2002Assignee: Fantom Technologies Inc.Inventors: Wayne Conrad, Terry Bohrson
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Patent number: 6482252Abstract: An apparatus for filtering a dirty air stream in a vacuum cleaner to obtain a clean air stream includes subjecting the dirty air stream to a first cyclonic separation stage to obtain a partially cleaned air stream and subjecting the partially cleaned air stream to an electronic filtration stage and optionally a second cyclonic separation stage to obtain the clean air stream. The electronic filtration stage is optionally removable with a cyclonic cleaning stage from the vacuum cleaner. The electronic filtration stage is optionally an electrostatic precipitator which utilizes air flow through the vacuum cleaner to generate the voltage used by the electrostatic precipitator.Type: GrantFiled: January 7, 2000Date of Patent: November 19, 2002Assignee: Fantom Technologies Inc.Inventors: Wayne Ernest Conrad, Helmut Gerhard Conrad
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Patent number: 6475352Abstract: A water treatment apparatus is operated by providing water to be treated in a reactor; passing air through a gas flow path which includes an ozone generator wherein the passage of the air through the ozone generator produces ozone enriched air, and subsequently introducing the ozone enriched air into the reactor from the gas flow passage; providing an electric current source for powering the ozone generator; providing an member to emit a signal (preferably a visible signal) representative of the level of current drawn by the ozone generator; and, using a sensor to monitor the signal produced by the member.Type: GrantFiled: January 12, 2001Date of Patent: November 5, 2002Assignee: Fantom Technologies Inc.Inventor: Wayne Conrad
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Patent number: 6468945Abstract: A fracturing fluid for use in fracturing subterranean formations surrounding oil and gas wells comprises water, an anionic surfactant, and a cationic surfactant.Type: GrantFiled: December 29, 1999Date of Patent: October 22, 2002Assignee: BJ Services Company CanadaInventor: Kewei Zhang