NOISE SUPPRESOR FOR FIREARMS

Abstract

The present invention relates to a noise suppressor for firearms comprising a main tubular body, a retractable muzzle booster provided within the main tubular body, a retracting means configured with the muzzle booster, an expanding chamber provided within the main tubular body, a wire mesh provided on the surface of the expanding chamber, a wipes and spacers means disposed between the expanding chamber and the front portion of the main tubular body, and an end cap secured to the front end portion of the main tubular body. The herein constructional feature of the noise suppressor effectively and tremendously reduces the sound level from the standard sound level of “160 decibels” to approximately “80 decibels.”

Description

CROSS-REFERENCE TO RELATED APPLICATION

The present disclosure claims priority to Philippine Utility Model Registration No. 22019000133, filed with the Intellectual Property Office of the Philippines on 6 Feb. 2019, titled “A NOISE SUPPRESSOR FOR FIREARMS” the entire contents of which are incorporated herein by reference and for all purposes.

TECHNICAL FIELD

The present invention relates in general to firearms, but more particularly to a noise suppressor for firearms with locked breech gun barrels.

BACKGROUND OF THE INVENTION

Heretofore, existing noise suppressors for firearms with locked breech gun barrels produce firing volumes or noise volume levels during firing operations or shooting exercises that approximate or do not meet the accepted and tolerable noise level of “90 decibels” for noise suppressors. Although most of these noise suppressors are constructed with numerous components, they still do not address to meet the accepted noise level or attempt to lower the noise volume of “140 decibels.”

SUMMARY OF THE INVENTION

The present invention seeks to solve the problems and disadvantages of existing noise suppressors for firearms by providing noise suppressor that can effectively lower the noise volume during firing from “160 decibels” to approximately “80 decibels” or about 50% or more lower than the accepted standard noise level.

More particularly, to attain the desired lower decibel of “80 decibels”, the noise suppressor for firearms of the present invention includes: (a) a main tubular body having a main bore and an internally threaded front and rear end portions; (b) a retractable muzzle booster provided within the rear portion of the main tubular body, the retractable muzzle booster being defined by a first tubular body having a first bore, a front end portion and an internally threaded rear end portion, the front end portion being defined by an externally threaded first peripheral flange; (c) a retracting means being operationally configured with the muzzle booster; (d) an expanding chamber provided within the middle portion of the main tubular body and operationally configured with the retractable muzzle booster, the expanding chamber being defined by a second tubular body having a second bore in direct communication with the first bore and a stepped rear section extending to a diametrically reduced front section, the stepped rear section having a second peripheral flange and the diametrically reduced front section having a third peripheral flange, the second tubular body being provided with a plurality of first and second holes and the second peripheral flange being provided with a plurality of third holes; (e) a wire mesh being provided on the surface of the reduced front section of said second tubular body; (f) a wipes means comprising a pair of rubber composite material with slightly undersized bore diameter of the actual caliber to decrease the velocity of the ammunition as it passes through to make it subsonic and travels at not more than 1,100f/s (foot per second) sound barrier and spacer metal ring (alloy) that separate the set of wipes and also serves as compartments to escaping gas; and (g) an end cap being secured to the front end portion of the main tubular body, the end cap having a hole in direct communication with the first bore and second bore third and fourth bore.

Another object of the present invention is to provide a noise suppressor for firearms that is easy to use and is maintenance-free.

Still, another object of the present invention is to provide a noise suppressor for firearms that is easy to manufacture using locally available materials and technology with optional for upgrade of materials to Inconel or titanium instead of aluminum.

These and other objects and advantages of the present invention will become more apparent upon a reading of the ensuing detailed description taken in conjunction with the appended drawings.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

FIG. 1 is a perspective view of a noise suppressor for firearms in accordance with the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1 showing the noise suppressor in normal position;

FIG. 2a is a sectional view of the noise suppressor in retracted position after the firearms have been fired;

FIG. 3 is an exploded view showing in detail the retractable muzzle booster of the noise suppressor for firearms in accordance with the present invention; and

FIG. 4 is an exploded view showing in detail the expanding chamber of the noise suppressor for firearms in accordance with the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Before describing the present invention in detail, it is to be understood that the phraseologies and terminologies used herein are to be used for description and should not be regarded as limiting.

Referring now to the different views of the appended drawings, wherein like reference numerals designate the components or elements throughout the ensuing enabling description, there is shown the present invention for A NOISE SUPPRESSOR FOR FIREARMS designated as 10.

Referring now to FIGS. 1, 2, 2A 3, 4, and 5 of the drawings, the noise suppressor for firearms 10 includes a main tubular body 11 having a main bore 12 and an internally threaded front portion 13 and rear end portion 14, a retractable muzzle booster 15 provided within the rear end portion 14 of the main tubular body 11, a retracting means “M” being operationally configured with the muzzle booster 15, an expanding chamber 16 provided within the middle portion of the main tubular body 11 and operationally configured with the retractable muzzle booster 15, a wipes means “B” provided within the main tubular body 11 and disposed between the expanding chamber 16 and the front portion 13 of the main tubular body 11. The wipes means “B” comprises of a pair of rubber composite materials 17 and a spacer 18 arranged alternately in sets. And an end cap 19 engageably secured to the front end portion 13 of the main tubular body 11 to close the noise suppressor 10.

As shown in FIGS. 2 and 3 of the appended drawings, the retractable muzzle booster 15 is defined by a first tubular body 20 having a first bore 21, a front end portion 22 and an internally threaded rear end portion 23. As shown in FIG. 4, the front end portion 22 of the retractable muzzle booster 15 has an externally threaded first peripheral flange 24 wherein the front surface of the first peripheral flange 24 is formed with a space defined by a circumferential funnel-like indention 25 extending from the periphery 24a of the first peripheral flange 24 towards the first bore 21 at the central portion thereof. As further shown in FIG. 4, the expanding chamber 16 is defined by a second tubular body 26 having a second bore 27 disposed in direct communication with the first bore 21 of the first tubular body 20 and a stepped rear section 28 extending to a diametrically reduced front section 29. The stepped rear section 28 having a second peripheral flange 30 and the diametrically reduced front section 29 having a third peripheral flange 31. The second tubular body 26, more particularly, the stepped rear section 28 is provided with spaced apart first holes 28a and the diametrically reduced front section 29 is provided with spaced apart second holes 29a. The second peripheral flange 30 is also provided with a plurality of third holes 30a. The first holes 28a of the stepped rear section 28 are larger in diameter than the second holes 29a of the diametrically reduced front section 29 and the third holes 30a of the second peripheral flange 30. A wire mesh 32 is provided and wrapped around the surface of the diametrically reduced front section 29 of the second tubular body 26. The wire mesh 32 is provided to aid in cooling the hot gases as a result from the firing of the firearms “F”.

Referring again to FIGS. 2 and 4 of the appended drawings, the pair of rubber composite materials 17 and a ring spacer 18 is arranged alternately in sets from the expanding chamber 16 and terminating to the front end portion 13 of the main tubular body 11. The wipes means “B” includes a set of pair of rubber composite materials 17 and a ring spacer 18. More particularly, the set of pair of rubber composite materials 17 and a ring spacer 18 are arranged alternately in sets starting from the third peripheral flange 31 of the diametrically reduced front section 29 of the second tubular body 26 up to the front end portion 13 of the main tubular body 11. The rubber composite materials 17 having a third bore 33 and the ring extender 18 having a fourth bore 34, the third bore 33 and fourth bore 34 are disposed in direct communication with the first bore 21 and second bore 27. As further shown in FIG. 4, the third bore 33 of the rubber composite materials 17 is made smaller in diameter than the diameters of the first bore 21 of the retractable muzzle booster 15, the second bore 27 of the expanding chamber 16 and fourth bore 34 of the ring spacer 18. Preferably, the third bore 33 of the rubber composite materials 17 is made of flexible material or rubber material and has a slightly smaller diameter than the bullet to retard the motion of the same and aid in the reducing the noise during firing and the ring spacer is preferably made of metal material. As further shown in FIG. 2, the end cap 19 is secured to the front end portion 13 of the main tubular body 11. The end cap 19 is defined by a head portion 19a and pair of externally threaded legs 19b adapted to be engageably secured to the internally threaded front end portion 13 of the main tubular body 11. The end cap 19 further having a central hole 19c disposed in direct communication with the first bore 21 of the retractable muzzle booster 15, the second bore 27 of the expanding chamber 16, third bore 33 of the rubber composite materials 17 and fourth bore 34 of the ring spacer 18. Preferably, the pair of rubber composite materials 17 are the last to be disposed adjacent to the leg 19b of the end cap 19.

Referring again to FIGS. 2 and 3 of the appended drawings, the retracting means “M” includes a housing 35 with a rear end portion 36 having a fourth peripheral flange 37 and an externally threaded sidewall 38. The retracting means “M” further includes a coil spring 39 provided along the inner surface of the externally threaded sidewall 38 and is held simultaneously on the surface of the first tubular body 20 of the muzzle booster 15 and a spring coil retainer surface 40 which is an extended lower portion of the fourth peripheral flange 37 of the housing 35. The spring coil 39 is adapted to actuate the muzzle booster 15 in a retracting and releasing manner from the second peripheral flange 30 of the stepped rear section 28 of the expanding chamber 15 to the gun barrel “G”, respectively, when the firearms “F” is fired.

In operation, the noise suppressor 10 is first engaged and secured to the front of the gun barrel “G” of the firearms “F” by engaging the internally threaded rear end portion 23 of the muzzle booster 15 to the corresponding threads of the gun barrel “G” of firearms “F” as shown in FIG. 2. When the firearms “F” is fired, the muzzle booster 15 will instantaneously retract to a position “X” by means of coil spring 39 and the retracing movement of the gun barrel “G” as shown in FIG. 2a and a space “S” is formed between the externally threaded first peripheral flange 24 of the muzzle booster 15 and the second peripheral flange 30 of the expanding chamber 16 as the bullet passes through the first bore 21 of the retractable muzzle booster 15, the second bore 27 of the expanding chamber 16, third bore 33 of the rubber composite materials 17, fourth bore 34 of the ring spacer 18 and will exit on the central hole 19c of the end cap 19. After firing, the muzzle booster 15 will return to its original position as shown in FIG. 2. The hot gases formed by the blast is momentarily retained in the space defined by a circumferential funnel-like indention 25 extending from the periphery 24a of the first peripheral flange 24 towards the first bore 21 at the central portion of the front face of the first peripheral flange 24. Upon the return of the muzzle booster 15 to its original position after firing as shown in FIG. 2, the hot gases resulting from the blast is momentarily retained in the space formed by the circumferential funnel-like indention 25 and then transferred to the expanding chamber 16. The hot gasses passes from the spaced apart third holes 30a of the second peripheral flange 30 and through the spaced apart first holes 28a of the stepped rear section 28 and into the wire mesh 32. The wires mesh 32 functions to cool the hot gases and the cooled gases are subsequently released to the wipes means “B” which includes series of the arranged sets of pair of rubber composite materials 17 and a ring spacer 18 and to the sidewalls of the main tubular body 11 through the second bore 27 and the spaced apart second holes 29a of the diametrically reduced front section 29, respectively. The herein construction of the noise suppressor 10 of present invention effectively and tremendously reduces the sound level of the firing volume during firing operations or firing exercises from the standard noise level of “160 decibels” to approximately “80 decibels.”

Additional advantages and modifications of the present invention will readily occur to those skilled in the art in view of these teachings. The present invention in its broader aspects is not limited to the specific details, representative contrivances, and illustrative examples shown and described herein. Accordingly, various modifications may be made without departing from the spirit and scope of the general concept as defined in the appended claims and their equivalents.

Claims

1. A noise suppressor for firearms comprising: a main tubular body having a main bore and an internally threaded front and rear end portions; a retractable muzzle booster provided within the rear portion of said main tubular body, said retractable muzzle booster being defined by a first tubular body having a first bore, a front end portion and an internally threaded rear end portion, said front end portion being defined by an externally threaded first peripheral flange; a retracting means being operationally configured with said muzzle booster; an expanding chamber provided within the middle portion of said main tubular body and operationally configured with said retractable muzzle booster, said expanding chamber being defined by a second tubular body having a second bore in direct communication with said first bore and a stepped rear section extending to a diametrically reduced front section, said stepped rear section having a second peripheral flange and said diametrically reduced front section having a third peripheral flange, said second tubular body being provided with a plurality of first and second holes and said second peripheral flange being provided with a plurality of third holes; a wire mesh being provided on the surface of said reduced front section of said second tubular body; a wipes means provided within said main tubular body and disposed between said expanding chamber and said front portion of said main tubular body; and an end cap being secured to the front end portion of said main tubular body, said end cap having a hole in direct communication with said first bore and second bore third and fourth bore.

2. A noise suppressor according to claim 1, wherein said retracting means comprising a housing with a rear end portion having a fourth peripheral flange, an externally threaded sidewall, and a coil spring provided along the inner surface of said sidewall adapted to actuate said muzzle booster in a retracting manner with respect to the gun barrel.

3. A noise suppressor according to claim 1, wherein said wipes means comprising set of pair of rubber composite materials and a ring spacer arranged alternately in sets from the third peripheral flange of said diametrically reduced front section of the second tubular body up to the front end portion of said main tubular body, said rubber composite materials having a third bore and said ring spacer having a fourth bore, said third and fourth bores being in direct communication with said first and second bores.

4. A noise suppressor according to claim 2, wherein said wipes means comprising set of pair of rubber composite materials and a ring spacer arranged alternately in sets from the third peripheral flange of said diametrically reduced front section of the second tubular body up to the front end portion of said main tubular body, said rubber composite materials having a third bore and said ring spacer having a fourth bore, said third and fourth bores being in direct communication with said first and second bores.

5. A noise suppressor according to claim 4, wherein the front surface of said first peripheral flange of the muzzle booster is formed with a space defined by a circumferential funnel-like indention extending from the periphery of said first peripheral flange towards said first bore at the central portion thereof.

6. A noise suppressor according to claim 5, wherein the bore said rubber composite materials is smaller than the bores of said retractable muzzle booster, expanding chamber and ring spacer.

7. A noise suppressor according to claim 6, wherein said ring spacer is made of steel material.

8. A noise suppressor according to claim 6, wherein said rubber composite materials are made of flexible material.