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2024
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Invention
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Heating, ventilation, and air conditioning (hvac) air duct cleaning system. A control system and ... |
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2021
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Invention
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Hvac air duct cleaning system.
A heating/ventilating/air conditioning (HVAC) air duct cleaning s... |
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Invention
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Direct drive for hvac air duct cleaning system.
A improved drive mechanism for coupling a rotata... |
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2008
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Invention
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Method of cleaning an hvac air duct.
An improved apparatus for cleaning ducts of a heating/venti... |
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2006
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Invention
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Duct cleaning equipment improvements.
Duct cleaning accessories for use with a heating/ventilati... |
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2005
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Invention
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Vent cleaning system.
An improved vent cleaning apparatus for removing dust from air conditionin... |
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2004
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Invention
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Air duct cleaning apparatus. An apparatus for cleaning ducts of a heating/ventilation/air conditi... |
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2000
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Invention
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Ductwork cleaning system. An accessory system for a ductwork cleaning machine that utilizes a vac... |
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1998
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Invention
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Portable drive unit for rotational cleaning tools. This invention is a portable device for cleani... |
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Invention
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Ductwork cleaning system. A system for cleaning building ductwork utilizing the equipment general... |
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1994
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P/S
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air duct cleaning system comprised of a vacuum cleaning unit and parts thereof |
