Selective one and two-stage trigger mechanism for firearms

• US 3,183,616 A
• Filed: 10/06/1964
• Issued: 05/18/1965
• Est. Priority Date: 10/06/1964
• Status: Expired due to Term

• Current Assignee: Warren L. Gandy
• Original Assignee: Warren L. Gandy
• Inventors: Gandy, Warren L.
• Application Number:
  US04/402,040
• Time in Patent Office: 224 Days
• US Class Current: 42/69.02
• CPC Class Codes: F41A 19/16 Adjustable firing mechanisms; Trigger mechanisms with adjustable trigger pull F41A19/17 takes precedence

Claims

1. IN A FIREARM HAVING A RECEIVER WITH A BOLT DISPOSED THEREIN FOR LONGITUDINAL RECIPROCATION, A FIRING PIN SLIDINGLY MOUNTED IN THE BOLT FOR DISPLACEMENT BETWEEN A COCKED AND A STRIKING POSITION, A FIRING PIN SPRING FOR BIASING SAID FIRING PIN TO THE STRIKING POSITION, AND A TRIGGER MECHANISM MOUNTED IN THE RECEIVER FOR ENGAGEABLE CONTROL OF SAID FIRING PIN, SAID TRIGGER MECHANISM INCLUDING A HOUSING, A PRIMARY SEAR MOUNTED FOR PIVOTAL DISPLACEMTN BETWEEN SEARING POSITION AND A RELEASE POSITION, COOPERATING MEANS ON SAID PRIMARY SEAR AND SAID FIRING PIN DISPOSED FOR E NGAGEMENT WITH SAID PRIMARY SEAR IS IN THE SEARING POSITION FOR BLOCKING DISPLACEMENT OF SAID FIRING PIN FROM THE COCKED POSITION AND FOR TRANSFERRING THE BIAS OF SAID FIRING PIN SPRING TO SAID PRIMARY SEAR FOR DISPLACEMENT THEREOF TO THE RELEASE POSITION, A TRIGGER PIVOTAL BETWEEN A NORMAL AND A FIRING POSITION, AN INTEGRAL ARM SAID TRIGGER DISPOSED FOR RELEASABLY BLOCKING DISPLACEMENT OF SAID PRIMARY SEAR TO THE RELEASE POSITION WHEN SAID TRIGGER IS IN THE NORMAL POSITION, MEANS FOR ADJUSTING THE AMOUNT OIF DISPLACEMENT REQUIRED OF SAID TRIGGER TO RELEASE SAID PRIMARY SEAR, A TRIGGER ACTUATED SECONDARY SEAR, AND MEANS FOR SELECTIVELY TRANSFERRING CONTROL OF SAID PAIMARY SEAR FROM SAID ARM TO SAID SECONDARY SEAR.