| 摘要 |
A spray dispenser comprises a container in which a product-containing bellows is situated above an energy storing bellows. A piston is disposed within the container below the energy storing bellows. A sleeve surrounds the container and is threadedly connected with the piston whereby rotation of the sleeve relative to the container causes the piston to rise and compress the energy storing bellows. The energy storing bellows thus pressurizes the product-containing bellows to expel the product when the valve is opened. The outer diameter of the bellows is of progressively reduced diameter to enable the bellows segments to become more snugly nested within one another when collapsing. |
