IP Library › Granted Patent US 7,363,741
Granted Patent B2
US 7,363,741 · App. 11/174,270 · Granted Apr 29, 2008

Hand guard assembly for firearms

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Quick Facts
Patent No.
US 7,363,741
App. No.
11/174,270
Granted
Apr 29, 2008
Kind
B2
Abstract

A hand guard assembly for a firearm including a barrel. The assembly includes a tubular unitary body mounted to surround a portion of the barrel substantially coaxially and in a transversely spaced relationship. The tubular body includes a plurality of air flow openings formed therethrough and at least one of a top rail formed as a unitary portion of the tubular body and extending rearwardly along an upper portion of a receiver of the firearm, side accessory rails formed as a unitary portion of the tubular body and on opposed sides of the tubular body, and a bottom accessory rail formed as a unitary portion of the tubular body and on a bottom surface of the tubular body. In the preferred method of fabricating the assembly, the body and any include accessory rails are extruded.

Claims (33)

1. A hand guard assembly for a firearm including a barrel, the assembly comprising:

a tubular one-piece body mounted to surround a portion of the barrel substantially coaxially and in a transversely spaced relationship;

the tubular one-piece body including a plurality of air flow openings formed therethrough;

a top rail formed on the tubular one-piece body to extend rearwardly along an upper portion of a receiver of the firearm;

the top rail includes a plurality of transverse ribs with adjacent ribs of the plurality of transverse ribs being separated by crosscuts; and

the top rail includes a plurality of pocket cuts intermediate adjacent transverse ribs.

2. A hand guard assembly for a firearm including a barrel, the assembly comprising:

a tubular unitary body mounted to surround a portion of the barrel substantially coaxially and in a transversely spaced relationship;

the tubular body including a plurality of air flow openings formed therethrough; and

side accessory rails formed on opposed sides of the tubular body, the side accessory rails being formed as a unitary portion of the tubular body and each include;

opposed longitudinally extending side grooves formed therein, the side grooves defining external reference surfaces for mounting accessories;

a longitudinally extending central groove formed therein midway between the opposed side grooves, the central groove defining internal reference surfaces for mounting accessories;

a plurality of transverse ribs with adjacent ribs of the plurality of transverse ribs being separated by crosscuts; and

a plurality of pocket cuts formed intermediate the transverse ribs and along the central groove.

3. A hand guard assembly for a firearm including a barrel, the assembly comprising:

a tubular unitary body mounted to surround a portion of the barrel substantially coaxially and in a transversely spaced relationship;

the tubular body including a plurality of air flow openings formed therethrough; and

a bottom accessory rail formed on a bottom surface of the tubular body, the bottom accessory rail being formed as a unitary portion of the tubular body and including;

opposed longitudinally extending side grooves formed therein, the side grooves defining external reference surfaces for mounting accessories;

a longitudinally extending central groove formed therein midway between the opposed side grooves, the central groove defining internal reference surfaces for mounting accessories;

a plurality of transverse ribs with adjacent ribs of the plurality of transverse ribs being separated by crosscuts; and

a plurality of pocket cuts formed intermediate the transverse ribs and along the central groove.

4. A hand guard assembly for a firearm including a barrel, the assembly comprising:

a tubular one-piece body mounted to surround a portion of the barrel substantially coaxially and in a transversely spaced relationship;

the tubular one-piece body including a plurality of air flow openings formed therethrough; and

the tubular one-piece body including a top rail formed as a portion of the tubular one-piece body and extending rearwardly along an upper portion of a receiver of the firearm, side accessory rails formed as a portion of the tubular one-piece body and on opposed sides of the tubular one-piece body, and a bottom accessory rail formed as a portion of the tubular one-piece body and on a bottom surface of the tubular one-piece body.

5. A hand guard assembly for a firearm including a barrel, the assembly comprising:

a tubular one-piece body mounted to surround a portion of the barrel substantially coaxially and in a transversely spaced relationship;

the tubular one-piece body including a plurality of air flow openings formed therethrough; and

the tubular one-piece body including a top rail formed as a portion of the tubular one-piece body and extending rearwardly along an upper portion of a receiver of the firearm, side accessory rails formed as a portion of the tubular one-piece body and on opposed sides of the tubular one-piece body, and a bottom accessory rail formed as a portion of the tubular one-piece body and on a bottom surface of the tubular one-piece body; and

each of the top rail, each of the side accessory rails, and the bottom accessory rail include a plurality of transverse ribs with adjacent ribs of the plurality of transverse ribs being separated by crosscuts and each having a plurality of pocket cuts formed intermediate the transverse ribs.

6. A hand guard assembly as claimed in claim 5 wherein each of the top rail, each of the side accessory rails, and the bottom accessory rail include opposed longitudinally extending side grooves formed therein, the side grooves defining external reference surfaces for mounting accessories.

7. A hand guard assembly as claimed in claim 5 wherein each of the side accessory rails and the bottom accessory rail include a longitudinally extending central groove formed therein midway between the opposed side grooves, the central groove defining internal reference surfaces for mounting accessories.

Assignments (2)
NUNC PRO TUNC ASSIGNMENT Recorded Feb 25, 2014
From: DESOMMA, FRANK
To: PATRIOT ORDNANCE FACTORY, INC.
Reel/Frame 032289/0122 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2013
From: ADVANCED DEVICE DESIGN, INC.; DAVIES, ESTATE OF ROBERT BRUCE; STANOWSKI, DAVID
To: PATRIOT ORDNANCE FACTORY, INC.
Reel/Frame 031225/0853 →
Continuity (2)
Provisional Application 6058574600 · Jul 6, 2004
Related Publication 20070006509A1 · Jan 11, 2007