Patent ID: 8677679
Filing Date: 2014-03-25
Classification: A01M,A61L

Abstract:
1. An ampoule for the storage and dispersion of a volatile liquid comprised of: a) an outer shell composed of an impermeable material and defining at least one opening; b) a porous diffusion member composed of a sintered, porous synthetic resin having a controlled porosity and having omnidirectional interconnecting pores, said porous diffusion member defining an internal reservoir therein which is positioned inside said outer shell; c) a volatile liquid contained within said internal reservoir so as to substantially encapsulate the volatile liquid; and d) a film member, which is impermeable to the volatile liquid, adhered to said outer shell and covering said at least one opening; wherein said film member is disposed such that an air space is present between said porous diffusion member and said film member; and wherein said porous diffusion member is configured such that molecules of the volatile liquid can only enter into said air space via diffusion through said porous diffusion member; characterized in that when one or more holes having a dimension or dimensions and a location or locations, respectively, is or are created in said film member, said volatile liquid is released at a constant rate which is regulated by the dimension or dimensions and location or locations of said one or more holes.