| 摘要 |
Disclosed herein is a dispenser comprising a housing having opposed first and second end walls each having therein respective parts rupturable from the end walls to provide respective first and second apertures, a first valve member mounted on the housing for movement relative to the first end wall between positions operative, when the first end wall is ruptured, to open and close the first aperture, a second valve member mounted on the housing for movement relative to the second end wall between positions operative, when the second end wall is ruptured, to open and close the second aperture, a plurality of spaced legs extending integrally from the first valve member in a direction extending away from the housing and adapted to support the housing in upright position on a supporting surface, to facilitate manual movement of the first valve member, and to afford flow of air between the legs and through the apertures and the housing after rupture of the end walls and when the valve members are in the open positions, and a container located in the housing and containing a substance which is to be dispensed in response to air flow through the housing. |
