Powder charge feed strip

Details Powder charge feed strip Powder charge feed strip

1983-09-13

1985-12-24

Moy, Joseph Man-Fu

Special receptacle or package

For ammunition

206347, 206346, F42B 3700

Patent

active

045600619

ABSTRACT:
An improved cartridge-holding magazine is provided for powder-actuated fastener driving tools. The magazine is in the form of a flat strip having a series of cartridge-receiving holes and grooves surrounding the holes for receiving an end extension of a chamber-defining portion of a fastener driving tool so as to properly locate the cartridges in the chamber. The grooves define sleeve portions in the strip which cooperate with the surrounding surface of the side wall of the cartridge chamber to prevent the side wall of a cartridge casing from rupturing or fracturing, especially near the rim of the cartridge, when the cartridge is fired, with the result that after ignition the gases expand axially into the chamber to propel the fastener driving striker so as to drive a fastener into a workpiece with maximum utilization of the energy of combustion.

REFERENCES:
patent: 2784405 (1957-03-01), Working, Jr.
patent: 3211284 (1965-10-01), Anstett
patent: 3904032 (1975-09-01), Maier
patent: 3954176 (1976-05-01), Haytayan
patent: 3955674 (1976-05-01), Maier et al.
patent: 4019631 (1977-04-01), Lejdegard et al.

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