Method of manufacturing an outer vacuum cleaner bag for an uprig

Details Method of manufacturing an outer vacuum cleaner bag for an uprig Method of manufacturing an outer vacuum cleaner bag for an uprig

1989-09-05

1991-04-23

Terrell, William E.

Manufacturing container or tube from paper; or other manufacturi

Container making

Pliable container

493381, 493927, 493935, 493941, 156 66, B31B 2368, B31B 2390

Patent

active

050096338

ABSTRACT:
A method of manufacturing the outer cloth bag for an upright vacuum cleaner in which the bag material of a predetermined width is unwound from a reel an fed through guides, material folders and a double headed sewing machine. At the same time zipper chains are fed from rolls on the right and left side of the moving bag material. The zippers are sewn on opposite side edges of the bag, the bag material is cut into predetermined sized panels, and thereafter the side edges of the panels are folded and the zipper halves zipped up to form a tube. At least one open end is closed to form a bag.

REFERENCES:
patent: 3283672 (1966-11-01), Mueller
patent: 4355494 (1982-10-01), Tilman
patent: 4415386 (1983-11-01), Ferrell et al.
patent: 4601694 (1986-07-01), Ausnit
patent: 4812074 (1989-03-01), Ausnit et al.
patent: 4892512 (1990-01-01), Branson

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