摘要 |
An ignitable charge for producing pressurized gas to power industrial tools, that is made of plentiful, common materials at a very low cost, lower in cost than conventional charges by orders of magnitude. The charge is comprised of a hollow plastic jacket of triangular cross section that is open through its center to both opposite ends and contains a nitrocellulose propellant in uncompressed, or expanded form that may be electrically ignited through one end of the jacket by a spark, hot wire, or the like in an open chamber type feed and firing mechanism. The charge produces pressurized gas at the desired burning rate and peak pressures for operating the tool. |