Pressurizable container by heat activation
First Claim
1. Container for holding a fluid under pressure which comprises an outer jacket equipped with at least one valve for dispensing the stored fluid, a flexible separate gas-tight hermetically sealed pouch within said jacket, a cartridge within said pouch which is capable of sustaining only a predetermined internal pressure therewithin, said cartridge being initially closed and filled with a propellant which is in liquid form at said predetermined pressure but is gaseous at room temperature and atmospheric pressure, said propellant being expansible in response to the application of heat so as to produce a pressure within said cartridge above said predetermined pressure which causes the release of said propellant from said cartridge and results in at least partial gasification of said propellant which then expands said pouch to fill the entire free internal space within the pouch under a pressure sufficient to eject the fluid in said jacket through the valve on the container when said valve is opened.
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Accused Products
Abstract
Container holding fluid to be dispensed if pressurized by rupturing cartridge containing liquefied gas located within flexible pouch inside the container, preferably by heating the container.
21 Citations
8 Claims
- 1. Container for holding a fluid under pressure which comprises an outer jacket equipped with at least one valve for dispensing the stored fluid, a flexible separate gas-tight hermetically sealed pouch within said jacket, a cartridge within said pouch which is capable of sustaining only a predetermined internal pressure therewithin, said cartridge being initially closed and filled with a propellant which is in liquid form at said predetermined pressure but is gaseous at room temperature and atmospheric pressure, said propellant being expansible in response to the application of heat so as to produce a pressure within said cartridge above said predetermined pressure which causes the release of said propellant from said cartridge and results in at least partial gasification of said propellant which then expands said pouch to fill the entire free internal space within the pouch under a pressure sufficient to eject the fluid in said jacket through the valve on the container when said valve is opened.
Specification