Patent ID: 7607898

Claim:
An apparatus for pressurizing a fluid and delivering a gas comprising: a. a casing assembly comprising an elongated thermally insulated body; b. a pump disposed at a first end of said casing assembly, said pump comprising: i. an intake opening for receiving said fluid in a liquid or supercritical state at an initial pressure and an initial temperature; ii. a pressurizing device in communication with said intake opening, said pressurizing device capable of pressurizing said fluid to a pre-determined pressure wherein said pre-determined pressure is greater than said initial pressure; and, iii. a high pressure discharge passage in communication with said pressurizing device for discharging said fluid from said pressurizing device; c. a drive section disposed at a second end of said casing assembly opposite said first end, said drive section comprising a driver for actuating said pump, said drive section spaced apart from said pump; d. a shaft disposed within said casing assembly and connected to said pump and to said driver, said shaft capable of transferring actuating movements from said driver to said pump; e. an accumulator disposed within said casing assembly between said pump and said drive section for receiving and storing a quantity of said fluid in a supercritical state within a storage pressure range, said accumulator comprising: i. an entrance in communication with said high pressure discharge passage for receiving said fluid; ii. a storage volume in communication with said entrance; and, iii. an exit in communication with said storage volume for delivering said fluid therefrom; f. a heater disposed within said casing assembly between said accumulator and said drive section, said heater capable of warming said fluid to a pre-determined temperature, thereby converting said fluid to said gas, said heater comprising: i. a heater inlet in communication with said exit for receiving said fluid; and, ii. a delivery outlet in communication with said heater inlet wherein said delivery outlet delivers said gas from said apparatus.