Patent ID: 8696982
Filing Date: 2014-04-15
Classification: A61L

Abstract:
1. A method of delivering a volatile material comprising the step of providing a delivery engine comprising: a. a reservoir comprising a volatile material mixture, said volatile material mixture comprising about 40% to about 100%, by total weight, of volatile materials each having a vapor pressure at 25° C. of less than about 0.1 torr; b. a microporous membrane enclosing said reservoir, said microporous membrane comprising an average pore size of about 0.01 to about 0.03 microns; c. a rupturable substrate enclosing said reservoir; and d. a flow path between said rupturable substrate and said microporous membrane e. a rupture element comprising a support structure, said rupture element and support structure positioned in said flow path between said rupturable substrate and said microporous membrane.