Joint between a sound suppressor and a barrel of a firearm

Abstract

A joint between a suppressor and a barrel of a firearm. The joint includes an adapter that is secured to the muzzle of the barrel and that receives the suppressor. A connection element is arranged at the rear end part of the suppressor and fits the forward end part of the adapter. The connection element has a disc-shaped forward end part and a tubular rear end part that serves for fitting the forward end part of the adapter. A tube section is coaxially attached to the connection element with a forward end part and in contact with the forward end part of the adapter with a rear end part in the mounted position of the suppressor. The joint provide for improved gas sealing and aligning of suppressor and barrel.

Description

[0001]This application is a continuation-in-part of application Ser. No. 12 / 207,294 filed Sep. 9, 2008, which claims the benefit of provisional application No. 61 / 022,706 filed Jan. 22, 2008, the entire contents of which are expressly incorporated herein by reference thereto.BACKGROUND[0002]The invention relates to a joint between a suppressor and a barrel of a firearm. The joint comprises a substantially cylindrical adapter defining an axis, said adapter has a rear end part coaxially secured to the muzzle of the barrel and a forward end part for receiving the suppressor, a through bore formed in the adapter in line with the bore in the barrel, and a connection element arranged at the rear end part of the suppressor and fits the forward end part of the adapter.[0003]It is well known that firearms create a high volume of noise upon firing. This noise makes it easy to locate the position of the marksman with the fatal effect that the marksman himself could be a target. Another serious...

AI Technical Summary

Benefits of technology

[0006]The disadvantages and drawbacks of the above-mentioned known technique may be remedied by providing a joint in accordance with the present invention. In a first aspect, the joint is used for attaching a suppressor to a barrel of a firearm, in which the gas sealing between the suppressor and the barrel is more effective than hitherto known. In a second aspect, the attachment is made by means of which the through opening of the suppressor is exactly in line with the through opening of the barrel. In a third aspect of the invention, the joint connects and enables the suppressor to be securely retained on the barrel of a firearm and can easily be removed when necessary or desired. In a fourth aspect, the joint allows the suppressor to be easily and quickly attached to a barrel of a firearm. In all these embodiments, the joint has a simple construction and is inexpensive to produce.

[0010]The conical part of the through bore could e.g. have an inclining angle of 8° to 14° and in an preferred embodiment the inclination could be 10° to 12°. The forward end part of the tube section can, according to the present invention, be attached to the through bore of the disc-shaped forward end part of the connection element by means of an outer thread on the tube section and an inner thread in the through bore of the forward end part of the connection element. By means of this arrangement the suppressor can easily and quickly be mounted on the adapter.

[0011]Another advantage consists in that the axial position of the tube section can be adjusted to the actual geometry of the joint by screwing the tube section in or out of the forward end part of the connection element. The securing of the suppressor to the adapter can in an expedient embodiment according to the present invention take place by turning the suppressor in relation to the adapter in the opposite direction of the direction in which the outer thread of the tube section is screwed into the inner thread of the disc-shaped forward end part of the connection element. Thus, when the tube section is screwed out of the suppressor when turning this in the securing direction, the conical rear end part of the tube section is automatically driven against the conical forward part of the through bore of the adapter with a relatively large force resulting in that the joint is being safely sealed.

[0012]The suppressor is dismounted by turning it in the opposite direction of the mounting direction whereby the tube section now is screwed into the suppressor end, and the tight connection between the two conical surfaces of the adapter and the tube section is easily released.

[0014]The suppressor is then mounted on the adapter by sliding the tubular rear end part of the connection element axially along the adapter with the at least one projection in engagement with said longitudinally extending slot and at the end of the slot turning the suppressor in relation to the adapter so that the at least one projection engages said ring-shaped groove. The suppressor now is securely fastened to the adapter. The suppressor can be easily dismounted by simply reversing the above-mentioned mounting steps.

[0015]According to the present invention the adapter can in one embodiment be formed as a tube only, but in another embodiment the adapter can be formed as a flash hider directing hot escaping gases from the barrel end and reducing the visibility of the blazing muzzle flash which occurs upon firing. According to the present invention a large variety of suppressors could be mounted onto a barrel or flash hider using the present joint e.g. a flash hider used on M16 series rifles.

Problems solved by technology

It is well known that firearms create a high volume of noise upon firing.

This noise makes it easy to locate the position of the marksman with the fatal effect that the marksman himself could be a target.

Another serious inconvenience consists in that the noise could damage the hearing of the marksman.

This assembling method causes however difficulties in keeping the through bore of the suppressor sufficiently in line with the through bore of the barrel.

Also, such connection is difficult to seal sufficiently with the unfavourable result that gunpowder dust and fouling easily could be blown out of the connection and up into the face of the marksman firing a bullet, thereby harming the marksman and making him more or less unfit for operating the firearm with the preciseness required.

This known arrangement involves a slow and troublesome operation of attaching the suppressor on the muzzle of the barrel of a firearm.

The arrangement is moreover complicated and costly to produce and maintain.

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