Bolt for firearms and cam pin therefor

• US 10,036,600 B2
• Filed: 12/20/2016
• Issued: 07/31/2018
• Est. Priority Date: 12/20/2016
• Status: Active Grant

• Current Assignee: Maranli Automation, Inc.
• Original Assignee: Maranli Automation, Inc.
• Inventors: Maranli, Hasan
• Primary Examiner(s): Morgan, Derrick R
• Application Number:
  US15/384,724
• Publication Number:
  US 20180172373A1
• Time in Patent Office: 588 Days
• CPC Class Codes: F41A 3/26 semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt

Abstract

An improved firearm bolt comprising a blind end cam pin bore therein, with closed end within the bolt. Blind bore end and distal cam pin end are in complementary configurations. Alternatives are discussed.

Claims

1. A bolt for a firearm of the type having a reciprocal bolt carrier said bolt comprising:

a bolt body;

a first firing pin bore extending in said bolt body;

a cylindrical cam pin bore extending transversely into said bolt body from one side thereof and said cam pin bore having side bore was and a bottom bore wall defining a dosed cam pin bore end within said bolt body;

a cam pin operably disposed in said cam pin bore;

said cam pin having a first end in engagement with said bottom bore wall of said cam pin bore and a second firing pin bore extending transversely through said cam pin for receiving a firing pin;

said cam pin at a second end having a flanged end spaced from said bolt when said cam pin is operably disposed in said cylindrical cam pin bore;

said bolt body having walls extending around said bore on two opposite side walls thereof and adjacent said bottom wall of said bore;

wherein said transverse firing pin bored in said cam pin is aligned with the said firing pin bore in said bold body when said cam in first end operably engages said bottom wall of said cam pin bore.

2. A bolt as in claim 1 wherein said bottom wall of said cam pin bore in said bolt body comprises a flat bottom wall.

3. A bolt as in claim 1 wherein said bottom wall of said cam pin bore in said bolt body comprises an inwardly curved radiused configuration.

4. A bolt as in claim 1 wherein said bottom wall of said cam pin bore in said bolt body comprises an inwardly tapered chamfered configuration.

5. A bolt as in claim 1 wherein said flanged end of said cam pin is spaced from said bolt by the engagement of said cam pin first end with said bottom wall of said cam pin bore.

6. A bolt as in claim 1 in combination with said reciprocal bolt carrier, wherein said flanged end is spaced from said bolt carrier by the engagement of said cam pin first end with said bottom wall of said cam pin bore.