US 12,004,629 B2
Diffuser of volatile liquid substances equipped with a vapor permeable membrane, activated at the time of use
Stefano Deflorian, Trento (IT); and Walter Sordo, Trento (IT)
Assigned to ZOBELE HOLDING S.P.A., Trento (IT)
Appl. No. 18/256,582
Filed by ZOBELE HOLDING S.p.A., Trento (IT)
PCT Filed Dec. 13, 2021, PCT No. PCT/IB2021/061644
§ 371(c)(1), (2) Date Jun. 8, 2023,
PCT Pub. No. WO2022/130174, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 102020000030848 (IT), filed on Dec. 15, 2020.
Prior Publication US 2023/0389673 A1, Dec. 7, 2023
Int. Cl. A45D 37/00 (2006.01); A01M 1/20 (2006.01); A61L 9/012 (2006.01); A61L 9/12 (2006.01)
CPC A45D 37/00 (2013.01) [A01M 1/2055 (2013.01); A61L 9/012 (2013.01); A61L 9/12 (2013.01); A45D 2200/1045 (2013.01); A61L 2209/131 (2013.01); A61L 2209/134 (2013.01)] 8 Claims
 
1. A diffuser of a volatile liquid substance comprising a container of the volatile liquid substance, closed by at least one permeable membrane which is permeable to the vapors of said volatile liquid substance and in direct contact with the external environment, wherein said container is at least partly flexible and contains a plurality of capsules filled with said volatile liquid substance and made of a pressure-breakable plastic material impermeable to liquids and vapors, wherein said container includes an annular edge portion and a cup-shaped central portion containing said plurality of capsules, wherein the angle formed between said annular edge portion and said cup-shaped central portion of the container is between 30° and 45°, the diffuser further comprising a flat ring stably fixed to said annular edge portion of the container.