Davis, Terry L.;

Primer removal method

A method for removing a damaged primer from the primer chamber of a cannon. The method comprises the steps of running a starter tap into a damaged primer, and shaking the damaged primer loose from the primer chamber so that the damaged primer comes out of the primer chamber on the edge of the tap.

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What is claimed as new and desired to be secured by Letters Patent of the United States:

1. A method for removing a damaged primer from the primer chamber of a cannon with a tool, the method comprising the steps of:

running a starter tap into the damaged primer; and

shaking the damaged primer loose from the primer chamber so that the damaged primer comes out of the primer chamber on the edge of the tap.

2. The method recited in claim 1 wherein the running step includes:

inserting the tap into the center of the damaged primer.

3. The method recited in claim 2 wherein the running step includes:

holding the tool parallel to the centerline of the cannon bore while applying forward pressure.

4. The method recited in claim 3 wherein the running step includes:

rotating a handle clockwise to run the tap into the primer a few turns.

5. The method recited in claim 3 wherein the running step includes:

turning the handle counterclockwise one-quarter of a turn.

6. The method recited in claim 4 wherein the shaking step includes:

gripping a slider.

7. The method recited in claim 6 wherein the shaking step includes:

pushing the slider forward toward the primer chamber.

8. The method recited in claim 7 wherein the shaking step includes:

quickly pulling the slider backward against a spacer bushing.