IP Library › Granted Patent US 12677818
Granted Patent B2
US 12677818 · App. 17/414,757 · Granted Jul 14, 2026

Device for diffusing volatile substances

Inventors: Roberto Camarero Díez (Barcelona, ES); Julio Cesar Ruiz Ballesteros (Barcelona, ES); Jessica Sijmons (Barcelona, ES)
Assignee: ZOBELE HOLDING SPA
A01M1/2055A01M1/2044A61L9/12B32B1/00B32B3/266B32B7/05B32B7/06B32B15/08B32B27/08B32B27/10B32B2250/44B32B2260/028B32B2260/04B32B2307/718B32B2307/724B32B2307/7242B32B2307/732B32B2307/748B32B2439/40
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Quick Facts
Patent No.
US 12677818
App. No.
17/414,757
Granted
Jul 14, 2026
Kind
B2
Abstract

The device for diffusing volatile substances includes a container which contains a material with said volatile substances, a porous diffuser which is impregnated with said material with the volatile substances, and a protective sheet which is removed before the first use of the diffusion device. The device also includes a barrier layer equipped with a window, with said barrier layer joined to the container and placed between the porous diffuser and the protective sheet. Due to the presence of the window, the volatile substances are diffused at a high diffusion rate from the moment the protective sheet is removed.

Claims (19)

1 . A device for diffusing volatile substances, comprising:

a container which contains a material with said volatile substances, the container including an interior edge;

a porous diffuser which is impregnated with said material with the volatile substances;

a protective sheet which is removed before a first use of the diffusion device; and

a barrier layer equipped with a window, with said barrier layer joined to the container and placed between the porous diffuser and the protective sheet;

wherein:

an edge of the porous diffuser is provided about the interior edge of the container, between the barrier layer and the container, the porous diffuser being sealed to said barrier layer and to the container;

said window is cut into said barrier layer and occupies most of said barrier layer to define an outer frame in said barrier layer; and

before removal of the protective sheet, the barrier layer has a cut line that separates the window from the frame, with the window covered by a part of the barrier layer.

2 . The device for diffusing volatile substances according to claim 1 , wherein the container comprises a perimeter edge, with said barrier layer sealed on said perimeter edge along the whole perimeter of the container.

3 . The device for diffusing volatile substances according to claim 1 , wherein the barrier layer is made of plastic.

4 . The device for diffusing volatile substances according to claim 1 , wherein the porous diffuser is made of cellulose.

5 . The device for diffusing volatile substances according to claim 1 , wherein the porous diffuser has a thickness of between 0.4 and 0.6 mm, and a weight between 225 g/m 2 and 400 g/m 2 .

6 . The device for diffusing volatile substances according to claim 1 , wherein the protective sheet is made of aluminium.

7 . The device for diffusing volatile substances according to claim 1 , wherein the container is made of thermoformed plastic.

8 . The device for diffusing volatile substances according to claim 1 , wherein said material with the volatile substances is a gel or a liquid.

9 . The device for diffusing volatile substances according to claim 1 , wherein said porous diffuser is directly fused to the barrier layer.

10 . The device for diffusing volatile substances according to claim 4 , wherein the porous diffuser has a thickness of between 0.4 and 0.6 mm, and a weight between 225 g/m 2 and 400 g/m 2 .

11 . The device for diffusing volatile substances according to claim 1 , wherein said porous diffuser is directly fused to the barrier layer.