Vacuum cleaner bag collar

Details Vacuum cleaner bag collar Vacuum cleaner bag collar

1988-05-10

1989-08-29

Nozick, Bernard

Gas separation

Flexible or collapsible bag type

Valved, self-closing, or apparatus contained bag closing means

55374, 55381, B01D 4600

Patent

active

048613576

ABSTRACT:
A mounting collar for a vacuum cleaner bag comprising three or more panels defined from a unitary blank and adhesively bonded in overlying relation to each other. The panels incorporate central aligned openings therethrough which, either in and of themselves or with an adhesively secured elastomeric sheet, provide for a sealing to the exhaust tube of a vacuum cleaner. The blank and the individual panels formed therefrom are from a low caliper stock paperboard material within the range of 15-30 points (0.015 inch to 0.030 inch). The intermediate panel or panels of the overlying panels are peripherally smaller than the outer panels and have the openings therein peripherally larger than the aligned openings in the outer panel.

REFERENCES:
patent: 3108736 (1963-10-01), Anderson et al.
patent: 3297231 (1967-01-01), Fesco
patent: 3533868 (1970-10-01), Kowalewski
patent: 3724179 (1973-04-01), Leinfelt
patent: 3803815 (1974-04-01), Anderson et al.

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