Patent ID: 11896855
Assignee: SCOTT TECHNOLOGIES, INC.
Field: Other consumer goods (Other fields)
Classification: CPC A  F | IPC A  F

Claim 0:
1. A method for providing gas to a user, comprising:
charging a compressed gas cylinder having a pressure volume with a gas to a service pressure of about 5,400 psig to about 6,000 psig;
reducing the pressure of the gas from a first pressure to a first reduced pressure;
reducing the pressure of the gas from the first reduced pressure to a second reduced pressure; and
transmitting said gas at the second reduced pressure to a user mask portion;
wherein at least one of a length and a diameter of the pressure volume portion are selected to provide a weight reduction as compared to a compressed gas cylinder for a self-contained breathing apparatus having a service pressure of about 4500 psig: and
wherein the length and diameter of the pressure volume portion are selected to provide a weight reduction of from about 5% to about 12% as compared to a compressed gas cylinder for a self-contained breathing apparatus having a service pressure of about 4500 psig.