Air filtration bag replacement device

Details Air filtration bag replacement device Air filtration bag replacement device

1979-09-17

1981-07-14

Jones, Jr., James L.

Metal working

Means to assemble or disassemble

To apply or remove a resilient article

269131, B23P 1902

Patent

active

042778743

ABSTRACT:
Apparatus for facilitating the insertion of a cylindrical frame into a filter bag used for collecting airborne particulate matter is disclosed. A cylindrical member is provided which has an axial discontinuity in its sidewalls. The outer diameter of the cylindrical member is at least equal to the inner diameter of the mouth of the bag. The inner diameter of the cylindrical member is no less than the outer diameter of the frame. A device is provided for drawing the sidewalls of the cylindrical member together at the discontinuity so that the outer diameter of the cylindrical member is decreased to slightly less than the inner diameter of the mouth of the bag. The mouth of the bag is then inserted over the end of the cylindrical member, which is released to capture the mouth of the bag. With the mouth of the bag held open by the apparatus of the present invention, the frame can readily be inserted through the other end of the cylindrical member.

REFERENCES:
patent: 2155705 (1939-04-01), Gottwald
patent: 2758764 (1956-08-01), Plazze
patent: 2998629 (1961-09-01), Smith

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