Gas separation – Flexible or collapsible bag type – With securing or supporting means
Patent
1995-02-27
1996-04-09
Miles, Tim R.
Gas separation
Flexible or collapsible bag type
With securing or supporting means
55DIG31, B01D 4602
Patent
active
055057551
ABSTRACT:
To provide a completely recyclable or incineratable filter bag holding frame, so that the holding frame together with the filter bags can be recycled as a unit, the holding frame is made entirely of recyclable and incineratable material in this manner: two essentially rectangular flat partial frames (1, 4) are made of groups of strips (1, 4), adhered together. Another group of strips (2), is placed on edge; the strips (2) have slits (8) therein extending from opposite edges, and spaced from the ends of the strips by distance slightly less than the width of the strips forming the partial frames. This provides an auxiliary frame (15), which is adhered to (1) of the partial frames. Core elements (5) of corrugated cardboard material are then placed against the assembly of the first partial frame (1) and the auxiliary frame (15), preferably adhered to both the partial end auxiliary frame. The outer surfaces of the core elements are then adhesively connected to on-edge strips (3) which, preferably, are also adhesively connected to the end edges (14) of the auxiliary frame (15) as well as to the first partial frame (1). The entire assembly is covered by a second partial frame (4), which is also adhered to the auxiliary frame (15) the outer strips (3) and the core elements (5). Preferably a hot, or hot-melted adhesive is used. One or both of the partial frames may be formed with inwardly extending projections (16) to be engaged by holding clips (18) of the filter bags (12).
REFERENCES:
patent: 3747773 (1973-07-01), Jackson
patent: 3834134 (1974-09-01), McAllister
patent: 4225328 (1980-09-01), Stiehl
patent: 4323378 (1982-04-01), Miljoen
patent: 5256312 (1993-10-01), Letersky
patent: 5320655 (1994-06-01), Ernst
Miles Tim R.
Zenteco AG
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