Tool for blowing insulation into an existing wall structure

Details Tool for blowing insulation into an existing wall structure Tool for blowing insulation into an existing wall structure

1977-02-18

1978-08-01

Novosad, Stephen J.

Static structures (e.g., buildings)

With adjunctive means for assembly or disassembly

Structure includes tool or opening to provide access for a...

52173R, 52743, 52749, 141329, 428 71, 428314, E04G 2100

Patent

active

041034643

ABSTRACT:
The apparatus and method of supplying pulverized insulative material to within an existing wall structure which already has a pad of insulative material located within the wall. An access opening is provided through the outer surface of the wall. The tool is formed in substantially a right angle and is to be connectable to a machine for blowing insulation. The outer edge of the tool includes a cutting edge and the outer surface of the tool adjacent the cutting edge is formed slightly arcuate. The cutting edge portion of the tool is inserted through the access opening and moved against the pad of insulation thereby cutting such until the cutting edge of the tool is located directly adjacent the backing layer of material of the pad of insulation. At this time the tool is then pivoted causing the tool to penetrate the backing layer of material and continuing to pivot the tool causes the tool to be located between the backing layer of material and the inner wall. The arcuate surface of the free end of the tool facilitates sliding movement of the tool against the inner wall. At this time the insulation may be blown with air pressure through the tool to be deposited within the interior opening of the wall structure.

REFERENCES:
patent: 2592081 (1952-04-01), Toulmin
patent: 2788552 (1957-04-01), Miles
patent: 2863797 (1958-12-01), Meyer
patent: 3007208 (1961-11-01), Urban
patent: 3151427 (1964-10-01), Meissner
patent: 3194853 (1965-07-01), Weise
patent: 3560285 (1971-02-01), Schroter
patent: 3785913 (1974-01-01), Hallamore
patent: 3957048 (1976-05-01), Jacobs
patent: 4002002 (1977-01-01), Barnhardt
patent: 4002174 (1977-01-01), Reed

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