초록 ▼

A cleaner for air distributing duct systems of buildings has a motor driven fan for developing a vacuum for the suction of contaminants and air from the interior of the ducts and for forcing the obtained contaminated air stream under positive pressure, relative to the ambient, through multiple stage

A cleaner for air distributing duct systems of buildings has a motor driven fan for developing a vacuum for the suction of contaminants and air from the interior of the ducts and for forcing the obtained contaminated air stream under positive pressure, relative to the ambient, through multiple stages of filtration. The filtered air is discharged locally within the building. Measurement and display of the vacuum and prefilter air pressures indicate to an attendant the status of the cleaner operation and the condition of the air filters. A viewing window allows observation of the contaminated air stream and the prefilter. A pneumatically driven agitator of multiple whips is introduced into the duct system to dislodge adhering contaminants from the interior walls of the ducts. The vertical stacking of modular subunits gives access for servicing each stage of filters and provides roll-about portability of the cleaner.

대표청구항 ▼

An apparatus for cleaning longitudinally elongated air channeling duct systems, comprising: a. a pneumatic agitator subsystem for placement, by an attending person, through a first opening in said duct systems, comprising: a continuing supply of compressed air for driving said pneumatic agitator sub

An apparatus for cleaning longitudinally elongated air channeling duct systems, comprising: a. a pneumatic agitator subsystem for placement, by an attending person, through a first opening in said duct systems, comprising: a continuing supply of compressed air for driving said pneumatic agitator subsystem; a whipping agitator communicating with said supply of compressed air through a snaking fluid conduit for longitudinal movement within the interior cavity of a duct of said air channeling duct systems, said agitator comprising means responsive to said compressed air supply to cause said agitator to undergo whipping action resulting in continuing automatic violent impact striking responsive to automatic flow of said compressed air randomly directed between said agitator and interior surfaces of said duct to dislodge adhering matter from said interior duct surfaces and suspend particles of said matter in contaminated air within said interior duct cavity; b. a vacuum cleaning subsystem for placement external to said duct systems for withdrawing said particles of dislodged matter in said contaminated air from said interior duct cavity through a sealed second opening into said duct systems, said vacuum subsystem comprising: a continually operative vacuum fan; a vacuum hose of appropriate diameter and length interposed between said vacuum fan and said second sealed opening into said interior duct cavity, said second opening is remotely removed from said first opening into said air channeling duct systems, said vacuum hose for conveying said particles in contaminated air from said duct systems to said cleaning subsystem; and c. a filtration subsystem communicating with said cleaning subsystem for recovery of said particles and air contaminants prior to discharge of filtered residual air into the local ambient environment of said air channeling duct systems.