Top loading upright vacuum cleaner bag and method of manufacturi

Details Top loading upright vacuum cleaner bag and method of manufacturi Top loading upright vacuum cleaner bag and method of manufacturi

1983-09-06

1985-04-23

Nozick, Bernard

Gas separation

Flexible or collapsible bag type

With flow line coupling means

55381, 493924, 493929, 156198, 156252, 156291, 383 66, 383123, 383904, B01D 4602

Patent

active

045127883

ABSTRACT:
A vacuum cleaner bag for use with top loading vacuum cleaner has a first collection tube and a second transfer tube, the tubes having communicating apertures near the top thereof, with a thermoplastic coating on the inner walls of the second transfer tube which is fused together to seal the second transfer tube adjacent the lower wall of the aperture thereof, the top and bottom of the first tube and bottom of the second transfer tube adhesively sealed; and a method for automatically forming the bags by superimposing the two tubes, adhesively securing them together, heat sealing the inner walls of the second transfer tube together, below the aperture, and closing the ends of the tubes.

REFERENCES:
patent: 2239133 (1941-04-01), Waters
patent: 2995205 (1961-08-01), Cordell
patent: 3333523 (1967-08-01), Terzuoli
patent: 3491522 (1970-01-01), Fesco
patent: 3619989 (1971-11-01), Howard et al.
patent: 4155727 (1979-05-01), Kaulig
patent: 4322259 (1982-03-01), Fesco

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