Patents by Inventor Hamid R. Rabie
Hamid R. Rabie has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7922910Abstract: An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate or air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.Type: GrantFiled: September 17, 2010Date of Patent: April 12, 2011Assignee: Zenon Technology PartnershipInventors: Pierre Lucien Cote, Arnold Janson, Hamid R. Rabie, Manwinder Singh
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Publication number: 20110006003Abstract: An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate or air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.Type: ApplicationFiled: September 17, 2010Publication date: January 13, 2011Inventors: Pierre Lucien Cote, Arnold Janson, Hamid R. Rabie, Manwinder Singh
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Patent number: 7820050Abstract: An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate or air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.Type: GrantFiled: October 7, 2009Date of Patent: October 26, 2010Assignee: Zenon Technology PartnershipInventors: Pierre Lucien Cote, Arnold Janson, Hamid R. Rabie, Manwinder Singh
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Publication number: 20100025327Abstract: An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate or air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.Type: ApplicationFiled: October 7, 2009Publication date: February 4, 2010Inventors: Pierre Lucien Cote, Arnold Janson, Hamid R. Rabie, Manwinder Singh
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Patent number: 7625491Abstract: An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate or air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.Type: GrantFiled: January 16, 2008Date of Patent: December 1, 2009Assignee: Zenon Technology PartnershipInventors: Pierre Lucien Cote, Arnold Janson, Hamid R. Rabie, Manwinder Singh
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Publication number: 20090071901Abstract: In one aspect, the invention is directed to methods and systems for filtering water using membranes. The methods and systems provide for controlling water levels in a tank with membranes immersed therein to control any of various conditions in the tank, such as the gas flow from aerators in the tank, the level of circulation of water in the tank, and the residence time of bubbles in the tank.Type: ApplicationFiled: June 5, 2008Publication date: March 19, 2009Inventor: Hamid R. Rabie
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Publication number: 20080251455Abstract: An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate or air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.Type: ApplicationFiled: January 16, 2008Publication date: October 16, 2008Inventors: Pierre Lucien Cote, Arnold Janson, Hamid R. Rabie, Manwinder Singh
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Patent number: 7347942Abstract: An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate or air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.Type: GrantFiled: September 6, 2006Date of Patent: March 25, 2008Assignee: Zenon Technology PartnershipInventors: Pierre Lucien Côté, Arnold Janson, Hamid R. Rabie, Manwinder Singh
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Patent number: 7198721Abstract: An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate or air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.Type: GrantFiled: November 15, 2004Date of Patent: April 3, 2007Assignee: Zenon Technology PartnershipInventors: Pierre Lucien Cote, Arnold Janson, Hamid R. Rabie, Manwinder Singh
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Patent number: 7186343Abstract: A process for supplying bubbles to a membrane module and cleaning an aerator producing the bubbles includes, in repeated cycles, steps of producing bubbles from an aerator and reducing pressure in the aerator such that water in the tank enters the aerator.Type: GrantFiled: July 11, 2005Date of Patent: March 6, 2007Assignee: Zenon Technology PartnershipInventors: Hamid R. Rabie, Pierre Lucien Cote, Manwinder Singh, Arnold Janson
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Patent number: 7014173Abstract: An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate or air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.Type: GrantFiled: October 8, 2003Date of Patent: March 21, 2006Assignee: ZENON Environmental Inc.Inventors: Hamid R. Rabie, Pierre Lucien Cote, Manwinder Singh, Arnold Janson, Steven Kristian Pedersen, Henry Behmann
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Publication number: 20040113293Abstract: An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate or air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.Type: ApplicationFiled: October 15, 2003Publication date: June 17, 2004Inventors: Hamid R. Rabie, Pierre Lucien Cote, Manwinder Singh, Arnold Janson
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Publication number: 20040112831Abstract: An aeration system for a submerged membrane module has a set of aerators connected to an air blower, valves and a controller adapted to alternately provide a higher rate or air flow and a lower rate of air flow in repeated cycles. In an embodiment, the air blower, valves and controller, simultaneously provide the alternating air flow to two or more sets of aerators such that the total air flow is constant, allowing the blower to be operated at a constant speed. In another embodiment, the repeated cycles are of short duration. Transient flow conditions result in the tank water which helps avoid dead spaces and assists in agitating the membranes.Type: ApplicationFiled: October 8, 2003Publication date: June 17, 2004Inventors: Hamid R. Rabie, Pierre Lucien Cote, Manwinder Singh, Arnold Janson, Steven Kristian Pedersen, Henry Behmann
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Publication number: 20040007525Abstract: A method of cleaning ultrafiltration or microfiltration membranes reduces the rate of decline in the permeability of the membranes so that intensive recovery cleaning is required less frequently. In one aspect, cleaning events using a chemical cleaner are started before the membranes foul significantly and are repeated between 1 and 7 times per week. The product of the concentration of the chemical cleaner expressed as an equivalent concentration of NaOCl and the duration of all cleaning events is between 2,000 minutes&Circlesolid;mg/l and 30,000 minutes&Circlesolid;mg/l per week. When performed in situ, each cleaning event comprises (a) stopping permeation and any agitation of the membranes, (b) backwashing the membranes with a chemical cleaner in repeated pulses and (c) resuming agitation, if any, and permeation. The pulses last for between 10 seconds and 100 seconds and there is a time between pulses between 50 seconds and 6 minutes. Each cleaning event typically involves between 5 and 20 pulses.Type: ApplicationFiled: June 16, 2003Publication date: January 15, 2004Inventors: Hamid R. Rabie, Hidayat Husain, Henry Behmann