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公开(公告)号：US20220362818A1
公开(公告)日：2022-11-17
申请号：US17317091
申请日：2021-05-11
发明人： Robert E. Elledge
摘要： A heating/ventilating/air conditioning (HVAC) air duct cleaning system with certain improvements having a system housing containing a vacuum-generating subsystem, a rotating motor with an output shaft, and a debris reservoir; a hose connection panel on the system housing positioned at an angle of approximately 45 degrees from horizontal; and a hose coupler on the hose connection panel, configured to receive a duct cleaning hose and to transfer rotational energy from the output shaft to a connection end of a rotatable cable when received into the guide portion, wherein the coupler provides coaxial alignment between the guide portion and the output shaft.
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公开(公告)号：US20220228823A1
公开(公告)日：2022-07-21
申请号：US17151131
申请日：2021-01-16
发明人： Robert E. Elledge
摘要： A improved drive mechanism for coupling a rotatable drive cable to a remote tool, especially for a heating/ventilating/air conditioning (HVAC) air duct cleaning system, having an angled inlet for connecting a remote tool via a rotatable cable, a cable connector guide aligned with the angled inlet for receiving a connection end of the rotatable cable, and a motor such as a brushless direct current (DC) motor with a direct-drive coupling to the connection end of the rotatable connector.
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