Ordnance – Automatic – Regulation of speed or rate of automatic fire
Patent
1996-05-09
1998-06-23
Carone, Michael J.
Ordnance
Automatic
Regulation of speed or rate of automatic fire
F41A 1904
Patent
active
057708142
ABSTRACT:
A firing rate regulating mechanism for an automatic firearm is provided. The firearm, typically, operates according to the closed bolt principle in which a moving bolt carrier carries a bolt that locks each cartridge in the chamber prior to firing. A moving firing pin and a hammer are provided to strike the cartridge's primer subsequent to locking of the bolt. A time delay unit is provided and is movable between a compressed position and an expanded position. Movement to the compressed position occurs at a first, relatively rapid rate while movement to the expanded position occurs at a second slower rate. A linkage is provided that compresses the time delay unit as the bolt carrier moves routinely and the hammer is retained against forward movement to strike the firing pin until the time delay unit has moved back into an expanded position. According to one embodiment, the time delay unit can be interconnected with an automatic sear that normally engages the hammer. The time delay unit, and its linkages, are interposed between the automatic sear and the bolt carrier, while the automatic sear is taken out of direct interconnection with the bolt carrier.
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Carone Michael J.
Defense Technologies Limited
Montgomery Christopher K.
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