US PATENT SUBCLASS 89 / 139
.~.~ Semi-automatic (e.g., double sear)

Current as of: June, 1999
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89 /   HD   ORDNANCE

125  DF  AUTOMATIC {14}
132  DF  .~ Firing device operation or control (e.g., full automatic) {12}
139.~.~ Semi-automatic (e.g., double sear) {4}
140  DF  .~.~.~> Convertible to full automatic {2}
143  DF  .~.~.~> Alternate control of hammer and breech block or barrel
144  DF  .~.~.~> With means for disconnecting trigger and sear {2}
147  DF  .~.~.~> Hammer cocked and released by trigger

DEFINITION

Classification: 89/139

(under subclass 132) Guns capable of semi-automatic firing operation.

(1) Note. The term "semi-automatic", as applied to gun firing, is used to designate a firing device which requires manual release of the trigger after each shot before the next shot can be fired.

(2) Note. Firing mechanisms comprising two trigger-operated sears (or sear shoulders) alternately engageable with the hammer are placed in this subclass (139).

SEE OR SEARCH THIS CLASS, SUBCLASS:

132, and 149 to 154, for guns capable of full automatic fire only.