Method of making a product for dispensing a volatile substance

Details Method of making a product for dispensing a volatile substance Method of making a product for dispensing a volatile substance

1977-03-18

1978-06-13

Spruill, Robert Louis

Package making

Interrelated or safety controls

53 28, 53 29, 53 37, 156 731, 156290, 206205, 239 56, B65B 2900, A24F 2500

Patent

active

040941191

ABSTRACT:
A method of making a product, which holds and dispenses a volatile substance, comprises the steps of advancing a backing material, a reservoir material and a third material, that is permeable to the volatile substance, from respective supplies into close proximity to each other with the reservoir material lying between the backing and permeable materials. The volatile substance is then supplied to the reservoir material to be absorbed thereby. The three materials are fused together in a pattern defining a closed loop periphery to seal the reservoir material between the backing and reservoir materials at the periphery and thereby form the product.

REFERENCES:
patent: 3415702 (1968-12-01), Bauder
patent: 3815828 (1974-06-01), Engel
patent: 3942634 (1976-03-01), Gandi et al.

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