Grease exhaust cleaning system
AssigneeGrease Duct Technologies, LLC
InventorMervyn Loughmiller
Life of this patent
Estimating the term…
Abstract
A method and apparatus for cleaning passageways such as air ducts or flues. The apparatus includes a body having a nozzle, or plurality of nozzles, rotatably coupled to it. A cage is coupled to the body and surrounds the rotative path of the nozzle or nozzles. The nozzles are configured such that passage of fluid through the nozzle's orifice imparts a rotating motion of the nozzle about the defined axis. The apparatus is placed in a duct or ventilation passageway, preferably at the highest vertical location of the passageway. Fluid is then passed through the nozzle spraying and cleaning the interior of the duct. The rotating motion of the spray causes the apparatus to maneuver its way through the duct system, including through angular transitions, until it travels the entire pathway of the duct.
Claims20
A method of cleaning a ventilation passageway comprising:
- providing a cleaning device having at least one fluid nozzle rotatably coupled to a body about a central axis, and a cage surrounding the at least one fluid nozzle;
- coupling the at least one fluid nozzle to a fluid source;
- placing the cleaning device in the ventilation passageway;
- and
- passing fluid through the at least one fluid nozzle to cause the at least one fluid nozzle to rotate about the central axis and to propel the cleaning device in a direction along the central axis.
A method of cleaning a ventilation passageway comprising:
- providing a cleaning device having at least one fluid nozzle rotatably coupled to a body about a central axis, and a cage circumscribing the at least one fluid nozzle;
- placing the cleaning device in the ventilation passageway;
- and
- passing fluid through the at least one fluid nozzle to cause the at least one fluid nozzle to rotate about the central axis and to propel the cleaning device in a direction along the central axis.
A method of cleaning a ventilation passageway comprising:
- providing a cleaning device having at least one fluid nozzle rotatably coupled to a body about a central axis, and a cage adapted to prevent an interior surface of a duct from striking a top or side of the at least one fluid nozzle;
- placing the cleaning device in the ventilation passageway;
- and
- passing fluid through the at least one fluid nozzle to cause the at least one fluid nozzle to rotate about the central axis.
Dependencies are inferred from the claim text.