Method of manufacturing an outer vacuum cleaner bag for an upright cleaner
AssigneeWhite Consolidated Industires, Inc.
InventorOral M. Smaling
Life of this patent
Estimating the term…
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.
Claims7
A method of manufacturing an outer vacuum cleaner bag for a vacuum cleaner, comprising the steps of:
- drawing out vacuum cleaner bag material cut to a specified width from a roll, the bag material having left and right sides, each having a side edge;
- folding the side edges of the bag material;
- providing zipper halves on the right and left sides of the bag material;
- feeding the bag material into a double-headed sewing machine with each of the heads on the sewing machine engaging one of the sides of the bag material;
- feeding each of the zipper halves into the respective head of the sewing machine and sewing the zipper halves on the right and left hand side edges of the bag material to form a bag assembly;
- and
- feeding the bag assembly into a cutting press using an automatic incremental feed apparatus whereby the bag material is cut into panels.
Dependencies are inferred from the claim text.