Patent US3710683A successfully refreshed from Google Patents.
US3710683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Muzzle-brake with a flash hider for automatic weapons and guns
Assignee: Rheinmetall Industrie AG
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Filing: 1970-10-05
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Granted: 1973-01-16
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Expires: 1990-10-05
Abstract
Abstract A muzzle-brake with a flash hider for automatic weapons and guns, which comprises an integral device which includes a first section forming a flash hider. The latter comprises a conical sleeve which is widening forwardly. A second section forms a muzzle-brake and follows the first section. The muzzle-brake has a rearwardly increasing outer diameter and a cylindrical bore. The wall of the second section has a plurality of rows of radial bores distributed over the periphery, and the wall of the first section has axial bores which are widening in axial and radial direction.
Inventors
- 👤 H Kaltmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:16
CPC Classifications
F; F41; F41A; F41A21/00; F41A21/32; F41A21/36; F41A21/34
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
119 words
A muzzle-brake with a flash hider for automatic weapons and guns, comprising an integral device including a first section forming a flash hider, said flash hider comprising a conical sleeve widening forwardly, a second section forming a muzzle-brake and following said first section, said muzzle-brake having a rearwardly increasing outer diameter and a cylindrical bore, the wall of said second section having a plurality of rows of radial bores distributed over the periphery, the wall of said first section having axial bores widening in axial and radial direction, the outer diameter of said second section is rearwardly increased relative to the longitudinal axis for an angle of about 3*-5*, and said radial bores are perpendicular to said outer wall.
Claim 2
Dependent Claim
119 words
A muzzle-brake with a flash hider for automatic weapons and guns, comprising an integral device including a first section forming a flash hider, said flash hider comprising a conical sleeve widening forwardly, a second section forming a muzzle-brake and following said first section, said muzzle-brake having a rearwardly increasing outer diameter and a cylindrical bore, the wall of said second section having a plurality of rows of radial bores distributed over the periphery, the wall of said first section having axial bores widening in axial and radial direction, the outer diameter of said second section is rearwardly increased relative to the longitudinal axis for an angle of about 3*-5*, and said radial bores are perpendicular to said outer wall.
Claim 3
Dependent Claim
126 words
A muzzle-brake with a flash hider for automatic weapons and guns, comprising an integral device including a first section forming a flash hider, said flash hider comprising a conical sleeve widening forwardly, a second section forming a muzzle-brake and following said first section, said muzzle-brake having a rearwardly increasing outer diameter and a cylindrical bore, the wall of said second section having a plurality of rows of radial bores distributed over the periphery, the wall of said first section having axial bores widening in axial and radial direction, the cross-section of said radial bores provided in the wall of said muzzle-brake corresponds about to the caliber of the weapon, and the total cross-section of said bores corresponds about with 60-times of the caliber of the weapon.
Claim 4
Dependent Claim
126 words
A muzzle-brake with a flash hider for automatic weapons and guns, comprising an integral device including a first section forming a flash hider, said flash hider comprising a conical sleeve widening forwardly, a second section forming a muzzle-brake and following said first section, said muzzle-brake having a rearwardly increasing outer diameter and a cylindrical bore, the wall of said second section having a plurality of rows of radial bores distributed over the periphery, the wall of said first section having axial bores widening in axial and radial direction, the cross-section of said radial bores provided in the wall of said muzzle-brake corresponds about to the caliber of the weapon, and the total cross-section of said bores corresponds about with 60-times of the caliber of the weapon.
Claim 5
Dependent Claim
118 words
A muzzle-brake with a flash hider for automatic weapons and guns, comprising an integral device including a first section forming a flash hider, said flash hider comprising a conical sleeve widening forwardly, a second section forming a muzzle-brake and following said first section, said muzzle-brake having a rearwardly increasing outer diameter, and a cylindrical bore, the wall of said second section having a plurality of rows of radial bores distributed over the periphery, the wall of said first section having axial bores widening in axial and radial direction, a third section following said muzzle-brake adapted to be used with weapons having a movable barrel, and said third section including an accumulation chamber to operate as a recoil amplifier.
Claim 6
Dependent Claim
118 words
A muzzle-brake with a flash hider for automatic weapons and guns, comprising an integral device including a first section forming a flash hider, said flash hider comprising a conical sleeve widening forwardly, a second section forming a muzzle-brake and following said first section, said muzzle-brake having a rearwardly increasing outer diameter, and a cylindrical bore, the wall of said second section having a plurality of rows of radial bores distributed over the periphery, the wall of said first section having axial bores widening in axial and radial direction, a third section following said muzzle-brake adapted to be used with weapons having a movable barrel, and said third section including an accumulation chamber to operate as a recoil amplifier.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |