Method and apparatus for manufacturing tea bags and the like

Details Method and apparatus for manufacturing tea bags and the like Method and apparatus for manufacturing tea bags and the like

1979-07-24

1981-04-21

Culver, Horace M.

Package making

Methods

Enclosing contents within progressively formed web means

53451, 53548, 53551, B65B 912

Patent

active

042624738

ABSTRACT:
A method and apparatus for manufacturing tea bags and the like is disclosed. The bags are made by forming a web into a flattened closed tube while continuously introducing tea and the like into the tube and pinching the tube at successive locations along transverse pinch lines corresponding generally to the required bag length. The tube is then caused to travel upwardly so that the tea tends to migrate downwardly under gravity and creates voided areas below the pinch locations and the tube is then heat sealed transversely in those voided areas. Finally, the bags are severed from the tube along lines disposed generally centrally of each transverse heat seal.

REFERENCES:
patent: 2134862 (1938-11-01), Dunnam
patent: 2139039 (1938-12-01), Salfisberg
patent: 2180966 (1939-11-01), Salfisberg
patent: 2475617 (1949-07-01), Irmscher
patent: 3024581 (1962-03-01), Cloud
patent: 3210908 (1968-10-01), Samberg

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