Per Gisle Djupesland,Matthew Egerton Young,Andrew Robert Fry,Christopher John Hurlstone
申请号：
US13099183
公开号：
US20120090608A1
申请日:
2011.05.02
申请国别(地区):
US
年份:
2012
代理人:
摘要：
A delivery device for and method of delivering substance, the delivery device comprising: a delivery outlet from which substance is in use delivered a gas chamber containing a gas and being of reducible volume, wherein a reduction in the volume of the gas chamber to a predeterminable volume acts to pressurize the contained gas to a predeterminable pressure a seal element disposed between the gas chamber and the delivery outlet and an opening mechanism configured, on reduction of the volume of the gas chamber to a predeterminable volume, to open the seal element, whereupon a gas flow from the gas chamber acts to deliver substance from the delivery outlet.
