Silencer for gas discharging devices

Claim 2

A muffler for receiving gas under pressure from a source comprising: a housing adapted to communicate with said source, said housing having a gas discharge opening extending axially therethrough for the passage of gas under pressure, a pair of annular chambers axially aligned in said housing, each defining sequentially a part of said opening, each of said chambers comprising a plurality of baffles extending longitudinally of said housing positioned to define by their adjacent edges a part of the periphery of said opening in said first and second chambers, a first flange having an aperture therethrough forming a part of said opening at the downstream end of said first chamber and extending laterally of said housing for separating said chambers, said first flange deflecting gas under pressure expanding outwardly of said opening in said first chamber, a second flange having an aperture therethrough forming a part of said opening at the downstream end of said second chamber and extending laterally of said housing, said second flange deflecting upstream against the downstream side of said first flange gas under pressure expanding outwardly of said opening in said second chamber, and a plurality of deflecting means loosely mounted around the outer edges of and in coaxial alignment with the baffles in said first and second chambers, said deflecting means each comprising a pocket for receiving the deflected gases in the chamber aound which they extend for causing them to acquire a rotary and whirling movement about an annular axis, the pockets in said deflection means surrounding said first chamber opening in the upstream direction of movement of gas under pressure through said opening and the pockets in said deflection means surrounding said second chamber opening in the downstream direction of movement of gas under pressure through said opening.

Claim 3

The muffler set forth in claim 1 wherein: said first flange dividing said housing into two separate chambers with the only gas communication therebetween being said gas discharge opening.

Claim 4

The muffler set forth in claim 1 wherein: said first and second flanges divide said housing into two separate chambers wherein the only gas communication through said first and second chambers is through said gas discharge opening.

Claim 5

The muffler set forth in claim 1 wherein: said baffles in each of said chambers are arranged on the quadrants of a circle.

Claim 6

The muffler set forth in claim 4 wherein: said housing comprises a hollow cylindrical configuration, said first and second flanges comprise discs extending substantially perpendicular to the longitudinal axis of said opening, and said baffles comprise planar members extending longitudinally of said first and second chambers having a width less than the radius of said housing.

Claim 7

The muffler set forth in claim 5 wherein: said deflection means loosely fitting around the outer edges of said baffles define a secondary passageway for deflected gas under pressure along said housing in each of said first and second chambers.

Claim 8

The muffler set forth in claim 6 wherein: said housing defines an annular opening at one end for receiving a discharge nozzle of a gas generating device, said annular opening opening into one end of said first chamber.

Claim 9

The muffler set forth in claim 7 wherein: said deflection means in said first chamber extend longitudinally of said housing around said annular opening.

Claim 10

The muffler set forth in claim 8 wherein: said annular opening is adapted to receive the barrel of a gun.

Claim 11

The muffler set forth in claim 8 wherein: said annular opening is adapted to receive the tail pipe of an engine.

Claim 12

The muffler set forth in claim 1 wherein: said deflection means each comprise a circular, doughnut-shaped configuration having a turned-over edge forming a scroll-like, arcuate configuration along its outer periphery for forming said pocket.

Claim 13

A muffler for a device discharging gas under pressure comprising: a housing adapted to communicate with the bore of the gas discharging device, said housing having an opening extending axially therethrough for the passage of gas under pressure from the gas discharging device, three annular chambers axially aligned in said housing, each defining sequentially a part of said opening, the first and second of said chambers each comprising a plurality of baffles arranged to extend longitudinally of said housing and arranged to define with their adjacent edges a part of the periphery of said opening, a first flange at the downstream end of said first chamber extending laterally of said housing for deflecting gas under pressure expanding outwardly of said opening, a second flange at the downstream end of said second chamber extending laterally of said housing for deflecting downstream in said housing against said first flange gas under pressure, said gas under pressure then deflected upstream and outwardly away from said opening, a plurality of first deflection means loosely mounted around the outer edges of said baffles in said first and second chambers in axial alignment for receiving the outwardly deflected gases off of said first and second flanges, said first deflection means each comprising a pocket for receiving the deflected gases and causing them to acquire a rotary and whirling movement about an annular axis, the pockets in said first deflection means surrounding said first chamber opening in the upstream direction of movement of gas under pressure through said opening and the pockets in said deflection means surrounding said second chamber opening in the downstream direction of movement of gas under pressure through said opening, the third of said chambers arranged for receiving the discharge gas under pressure from second chamber and comprising a cylindrical housing surrounding and defining the periphery of a portion of said opening in said muffler, said cylindrical member provided with a plurality of slots spacially arranged along the longitudinal axis of said cylindrical housing, a plurality of second deflection means axially arranged along said cylindrical member and each defining a pocket in communication with at least one of said slots, each of said pockets of said second deflection means causing said gas deflected through said slots and into them acquiring a rotary and whirling movement about an annular axis to dissipate their energy, said gases in said muffler after dissipation of a substantial amount of their energy in said first and second deflection means being expelled through said opening to atmosphere.

Claim 14

A muffler for a device discharging gas under pressure comprising: a housing adapted to communicate with the bore of the gas discharging device, said housing having an opening extending axially therethrough for the passage of gas under pressure from the gas discharging device, three annular chambers axially aligned in said housing, each defining sequentially a part of said opening, the first and second of said chambers each comprising a plurality of baffles arranged to extend longitudinally of said housing and arranged to define with their adjacent edges a part of the periphery of said opening, a first flange at the downstream end of said first chamber extending laterally of said housing for deflecting gas under pressure expanding outwardly of said opening, a second flange at the downstream end of said second chamber extending laterally of said housing for deflecting downstream in said housing against said first flange gas under pressure, said gas under pressure then deflected upstream and outwardly away from said opening, a plurality of first deflection means loosely mounted around the outer edges of said baffles in said first and second chambers in axial alignment for receiving the outwardly deflected gases off of said first and second flanges, said first deflection means each comprising a pocket for receiving the deflected gases and causing them to acquire a rotary and whirling movement about an annular axis, the pockets in said first deflection means surrounding said first chamber opening in the upstream direction of movement of gas under pressure through said opening and the pockets in said deflection means surrounding said second chamber opening in the downstream direction of movement of gas under pressure through said opening, the third of said chambers arranged for receiving the discharge gas under pressure from second chamber and comprising a cylindrical housing surrounding and defining the periphery of a portion of said opening in said muffler, said cylindrical member provided with a plurality of slots spacially arranged along the longitudinal axis of said cylindrical housing, a plurality of second deflection means axially arranged along said cylindrical member and each defining a pocket in communication with at least one of said slots, each of said pockets of said second deflection means causing said gas deflected through said slots and into them acquiring a rotary and whirling movement about an annular axis to dissipate their energy, said gases in said muffler after dissipation of a substantial amount of their energy in said first and second deflection means being expelled through said opening to atmosphere.

Claim 15

The muffler set forth in claim 12 wherein: said second deflection means comprises funnel-shaped devices with one resting within the other when asseMbled.

Claim 16

The muffler set forth in claim 13 wherein: each of said second deflection means defines an opening axially thereof of a slightly larger diameter than said cylindrical member for slidably fitting thereover.

Claim 17

The muffler set forth in claim 14 wherein: said housing defines an annular opening at one end for receiving a discharge nozzle of a gas generating device, said annular opening opening into one end of said first chamber.

Claim 18

The muffler set forth in claim 15 wherein: said first deflection means in said first chamber extend longitudinally of said housing around said annular opening and said first deflecting means in said second chamber extend longitudinally of said housing around said second deflection means.

Claim 19

The muffler set forth in claim 16 wherein: said second deflection means isolate the gas under pressure passing through said muffler from gases in said first and second chambers.

Claim 20

A muffler for mounting on the barrel of a gun comprising: a housing adapted to communicate with the barrel of the gun, said housing having a gas discharge opening extending axially therethrough for the guidance of a projectile of the gun and the passage of a pencil-like gas stream following it, an annular chamber axially aligned in said housing defining a part of said opening, said chamber comprising a plurality of baffles extending longitudinally of said housing positioned to define by their adjacent edges a part of the periphery of said opening in said chamber, the adjacent edges of each of said baffles of said chamber defining an extension of the bore of the gun for physically keeping a projectile of the gun axially aligned with the axis of said housing when passing therethrough, a flange having an aperture therethrough forming a part of said opening at the downstream end of said chamber and extending laterally of said housing, said flange deflecting gas under pressure expanding outwardly of said opening in said chamber to break up the pencil-like stream of gas following the projectile, and a plurality of deflecting means loosely mounted around the outer edges of and in coaxial alignment with said baffles in said chamber, said deflecting means each comprising a pocket for receiving the deflected gases in the chamber around which they extend for causing them to acquire a rotary and whirling movement about an annular axis, the pockets in said deflection means surrounding said chamber opening in the upstream direction of movement of gas under pressure through said opening.

Claim 21

A muffler for mounting on the barrel of a gun comprising: a housing adapted to communicate with the barrel of the gun, said housing having a gas discharge opening extending axially therethrough for the guidance of a projectile of the gun and the passage of a pencil-like gas stream following it, an annular chamber axially aligned in said housing defining a part of said opening, said chamber comprising a plurality of baffles extending longitudinally of said housing positioned to define by their adjacent edges a part of the periphery of said opening in said chamber, the adjacent edges of each of said baffles of said chamber defining an extension of the bore of the gun for physically keeping a projectile of the gun axially aligned with the axis of said housing when passing therethrough, a flange having an aperture therethrough forming a part of said opening at the downstream end of said chamber and extending laterally of said housing, said flange deflecting gas under pressure expanding outwardly of said opening in said chamber to break up the pencil-like stream of gas following the projectile, and a plurality of deflecting means loosely mounted around the outer edges of and in coaxial alignment with said baffles in said chamber, said deflecting means each comprising a pocket for receiving the deflected gases in the chamber around which they extend for causing them to acquire a rotary and whirling movement about an annular axis, the pockets in said deflection means surrounding said chamber opening in the upstream direction of movement of gas under pressure through said opening.

Claim 22

A muffler for mounting on the barrel of a gun comprising: a housing adapted to communicate with the barrel of the gun, said housing having a gas discharge opening extending axially therethrough for the guidance of a projectile of the gun and the passage of a pencil-like gas stream following it, a pair of annular chambers axially aligned in said housing, each defining sequentially a part of said opening, each of said chambers comprising a plurality of baffles extending longitudinally of said housing positioned to define by their adjacent edges a part of the periphery of said opening in said first and second chambers, the adjacent edges of each of said baffles of each of said chambers defining an extension of the bore of the gun for physically keeping a projectile of the gun axially aligned with the axis of said housing when passing therethrough, a first flange having an aperture therethrough forming a part of said opening at the downstream end of said first chamber and extending laterally of said housing for separating said chambers, said first flange deflecting gas under pressure expanding outwardly of said opening in said first chamber to break up the pencil-like stream of gas following the projectile, a second flange having an aperture therethrough forming a part of said opening at the downstream end of said second chamber and extending laterally of said housing, said second flange deflecting upstream against the downstream side of said first flange gas under pressure expanding outwardly of said opening in said second chamber.

Claim 23

A muffler for mounting on the barrel of a gun comprising: a housing adapted to communicate with the barrel of the gun, said housing having a gas discharge opening extending axially therethrough for the guidance of a projectile of the gun and the passage of a pencil-like gas stream following it, a pair of annular chambers axially aligned in said housing, each defining sequentially a part of said opening, each of said chambers comprising a plurality of baffles extending longitudinally of said housing positioned to define by their adjacent edges a part of the periphery of said opening in said first and second chambers, the adjacent edges of each of said baffles of each of said chambers defining an extension of the bore of the gun for physically keeping a projectile of the gun axially aligned with the axis of said housing when passing therethrough, a first flange having an aperture therethrough forming a part of said opening at the downstream end of said first chamber and extending laterally of said housing for separating said chambers, said first flange deflecting gas under pressure expanding outwardly of said opening in said first chamber to break up the pencil-like stream of gas following the projectile, a second flange having an aperture therethrough forming a part of said opening at the downstream end of said second chamber and extending laterally of said housing, said second flange deflecting upstream against the downstream side of said first flange gas under pressure expanding outwardly of said opening in said second chamber.

Claim 24

The muffler set forth in claim 19 in further combination with: a plurality of deflecting means loosely mounted around the outer edges of and in coaxial alignment with said baffles in said first and second chambers, said deflecting means each comprising a pocket for receiving the deflected gases in the chamber around which they extend for causing them to acquire a rotary and whirling movement about an annular axis, the pockets in said deflection means surrounding said first chamber opening in the upstream direction of movement of gas under pressure through said opening and the pockets in said deflection means surrounding said second chamber opening in the downstream direction of movement of gas under pressure through said opening.