US 12,123,671 B2
Muzzle end adapter to perform bore sight of a small caliber gun
Ankit Kumar, Bangalore (IN); Kondangi Lakshmikumar Arvind, Singapore (SG); and Nelaji Mohanrao Sudarshan, Bangalore (IN)
Assigned to Tonbo Imaging Pte. Ltd., Singapore (SG)
Filed by Tonbo Imaging Pte. Ltd., Singapore (SG)
Filed on Oct. 31, 2022, as Appl. No. 18/051,340.
Prior Publication US 2024/0142190 A1, May 2, 2024
Int. Cl. F41G 1/54 (2006.01); F41A 21/32 (2006.01)
CPC F41A 21/325 (2013.01) [F41G 1/545 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A muzzle end adapter for performing bore sighting of a small caliber gun, the muzzle end adapter comprising:
a plurality of hand levers, wherein the plurality of hand levers are positioned at a first end of the muzzle end adapter, wherein the plurality of hand levers comprises a first hand lever and a second hand lever, wherein the first hand lever is rotated in a first direction by a user;
a main operating shaft connected rigidly with the first hand lever, wherein the main operating shaft extends along a longitudinal axis of the muzzle end adapter, wherein the main operating shaft rotates in the first direction upon rotation of the first hand lever by the user;
a cylindrical member connected at one end of the main operating shaft, wherein the cylindrical member extends along the longitudinal axis of the muzzle end adapter, wherein the cylindrical member slides axially upon rotation of the main operating shaft;
a plurality of centering devices, wherein the plurality of centering devices comprises a plurality of jaws, wherein the plurality of jaws comprises a plurality of equiangular spaced jaws centered around a pivot pin, wherein the plurality of jaws extends radially to engage with inner periphery of the small caliber gun upon axial sliding of the cylindrical member; and
a disk, wherein the disk comprises a tapered hole connected with the muzzle end adapter, wherein the tapered hole enables attachment of a camera to perform bore sighting of the small caliber gun.
 
11. A muzzle end adapter for performing bore sighting of a small caliber gun, the muzzle end adapter comprising:
a plurality of hand levers, wherein the plurality of hand levers are positioned at a first end of the muzzle end adapter, wherein the plurality of hand levers comprises a first hand lever and a second hand lever, wherein the first hand lever is rotated in a first direction by a user;
a main operating shaft connected rigidly with the first hand lever, wherein the main operating shaft extends along a longitudinal axis of the muzzle end adapter, wherein the main operating shaft rotates in the first direction upon rotation of the first hand lever by the user;
a cylindrical member connected at one end of the main operating shaft, wherein the cylindrical member extends along the longitudinal axis of the muzzle end adapter, wherein the cylindrical member slides axially upon rotation of the main operating shaft;
a plurality of centering devices, wherein the plurality of centering devices comprises:
a plurality of jaws, wherein the plurality of jaws comprises a plurality of equiangular spaced jaws centered around a pivot pin, wherein the plurality of jaws extends radially to engage with inner periphery of the small caliber gun upon axial sliding of the cylindrical member, wherein the plurality of jaws comprises a first plurality of jaws and a second plurality of jaws;
a plurality of jaws carrier, wherein the plurality of jaws carrier comprises a first jaws carrier and a second jaws carrier, wherein the first plurality of jaws are situated on a first jaws carrier and wherein the second plurality of jaws are situated on a second jaws carrier; and
a disk, wherein the disk comprises a tapered hole connected with the muzzle end adapter, wherein the tapered hole enables attachment of a camera to perform bore sighting of the small caliber gun.