US PATENT SUBCLASS 89 / 177
.~.~ Barrel buffers and brakes


Current as of: June, 1999
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89 /   HD   ORDNANCE

125  DF  AUTOMATIC {14}
160  DF  .~ Movable barrel (e.g., rotary) {4}
177.~.~ Barrel buffers and brakes


DEFINITION

Classification: 89/177

(under subclass 160) Guns wherein the barrel is provided with either a buffer to absorb excess recoil or counter-recoil energy, or a brake to retard the rate of recoil or counter-recoil motion.

(1) Note. The intended function of the barrel buffer may be that of increasing the rate of fire.

(2) Note. To cause classification in this subclass the buffer must involve more than a rigid stop surface and more than a barrel return spring.

SEE OR SEARCH THIS CLASS, SUBCLASS:

42.01+, for recoil checks for nonautomatic guns.

129.01+, for devices other than buffers or brakes for regulating the rate of fire.

178, for barrel recoil springs. 198, for other buffers and brakes. SEE OR SEARCH CLASS

188, Brakes.

267, Spring Devices.