Patent
1977-09-29
1981-01-06
Cangialosi, S. A.
G21C 1920
Patent
active
042434866
ABSTRACT:
A process for the insertion and exchange of the filter elements for suspended matter is performed from the clean-air-side. During the insertion of a filter element, a plastic tube (which encircles the circumference of the filter element and which exceeds in its length the layer thickness of the filter element several times) is tightly connected in its middle section with the side walls, which side walls form a border around the filter element; and then the open end of the plastic tube, which faces the frame, is connected by way of a tight fit with a ring, which is actually known and which surrounds the orifice of the frame into which the filter element is inserted. The filter element is connected with the frame by means of tightening devices, and the outer free end of the tube is turned inside out and around the filter element for the purpose of unhindered air passage through the filter layer, that during the exchange of the contaminated filter element, the outer open end of the tube is heat sealed. The filter element is disconnected and removed from the frame by flipping down of the tightening devices, and the tube is heat sealed in the section between the filter element and the frame, and, that during the insertion of a new filter element, a new tube is attached by way of tight fitting to the ring of the frame, which tube is at its middle section tightly connected with the filter element, and which tube is attached to the ring of the frame in an actually known by overlapping of the heat-sealed tube rest. The tube rest is pulled onto the new tube and pulled off the ring, and the filter element is tightly connected with the frame by means of the tightening devices.
REFERENCES:
patent: 2604311 (1952-07-01), Summerhill
patent: 3243942 (1966-04-01), Burke
patent: 3354616 (1967-10-01), Lucas
patent: 3556941 (1971-01-01), Takahashi
patent: 3690045 (1972-09-01), Neumann
patent: 3740934 (1973-06-01), Shuler
patent: 3999969 (1976-12-01), Shuler
patent: 4015751 (1977-04-01), Rollins et al.
patent: 4045350 (1977-08-01), Kupf et al.
patent: 4058379 (1977-11-01), Cheng
patent: 4124361 (1978-11-01), Revell
Karelin Jochen
Neumann Gerhard M.
Cangialosi S. A.
Delbag-Luftfilter GmbH
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