Brushing – scrubbing – and general cleaning – Attachments – For a vacuum cleaner
Patent
1988-07-19
1988-07-19
Hornsby, Harvey C.
Brushing, scrubbing, and general cleaning
Attachments
For a vacuum cleaner
15249, 15163, 1510419, F23J 300
Patent
active
047575735
ABSTRACT:
There is disclosed a chimney cleaner comprising a frame of rectangular cross-section narrower than the internal dimension of the chimney flue to be cleaned and having a substantial vertical height with spring-loaded pivotal flue side-scraping blades mounted to swing outwardly and upwardly from the sides of the frame to firmly contact and scrape the sides of a flue; preferably there are four blades with two oppositely disposed blades displaced vertically from the other two oppositely disposed blades whereby the blades may be substantially the full width of the flue and yet not interfere one with the other. Blade holders for the blades have arms extending toward the center of the frame and a central shaft has camming plates which act against the arms to retract the blades for lowering the apparatus into a flue; the shaft is vertically displaced by a pull on the rope connected thereto releasing the arms from the camming plates and allowing the adjustable-force, spring-loaded blades to spring out against the interior walls of the flue. As the apparatus is drawn up the flue the blades scrape creosote, soot and other deposits from the interior walls of the flues. The apparatus or the blades, or both, may be sized and shaped to accommodate different sizes and shapes of flues and the apparatus may be employed with ceramic flue tiles, metal pipe or other forms of chimney structure.
REFERENCES:
patent: 1847364 (1932-03-01), Rugard
patent: 2077731 (1937-04-01), Aaby
patent: 2602177 (1952-07-01), Aho
patent: 4085477 (1978-04-01), Anderson
Brophy Ralph
Hornsby Harvey C.
Keegan Robert R.
O'Leary K. L.
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