Patent · US Active

M4A1 helically fluted barrel

US10627179B1 · kind B1 · utility

0Cited by

17References

3Claims

0Family size

Assignee

The United States of America as represented by the Secretary of the Army · US

Inventors

Thomas C. Grego · Mount Olive, US
Adam Foltz · Long Valley, US

Key dates

Filing date	Mar 19, 2019
Grant date	Apr 21, 2020
Priority date	—
Expiry date	Mar 19, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF41A13/12
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

An M4A1 helically fluted gun barrel is provided which increases sustained peak temperature levels for the barrel. This M4A1 helically fluted gun barrel incorporates multi-start variable pitch helical openings into the exterior profile of a standard M4A1 heavy barrel. The helical openings increase the outer surface area for heat dissipation, and also reduce weight as a further advantage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.