Barrel measuring device
OwnerRobert Foegeinventor
Life of this patent
Estimating the term…
Abstract
A barrel measuring device for accurate measurement of all internal dimensions and barrel wall thickness of a gun, tube, pipe or cylinder is comprised of a fixed probe transversely attached to a cross member at a distal end. A second probe transversely attached to a body member proximate to the fixed probe, said body member and second probe slidaby moveable along the axis of the cross member. A measurement device attached to the body member and second probe for recording of the diameter proportional to the degree of expansion of the fixed and second probe within the barrel. A recoil means for expansion contained with the cross member and attached to the body member coupled with the second probe providing an expansion pressure between the probes for measurement with the measuring device.
Claims12
A caliper device for measuring a barrel internal diameter and a barrel length comprising:
- a barrel member having an opening and a first and second internal wall surface;
- a first fixed probe transversely appended to a distal end of a cross member;
- a second probe, proximate to the first probe, affixed to a body member appended to the cross member, said second probe and body member slidable along the cross member axis, said first and second probe inserted in communication into said barrel member opening;
- a first measuring device affixed to the body member, said measuring device activated by opening of said second probe engaged within said barrel member measuring the barrel internal diameter proportional to the degree of expansion of the first and second probes, a second measuring means contained thereon the first and second probes;
- and,
- a recoil means contained within the cross member attached to the body member for expansion of said probes biased against the first and second internal wall surface.
A caliper device for measuring a barrel wall thickness comprising:
- a first fixed probe transversely appended to a distal end of a cross member;
- a second probe, proximate to the first probe affixed to a body member appended to the cross member, said second probe and body member slidable along the axis of said cross member;
- a measuring device affixed to the body member, said measuring device activated by opening of said second probe measuring the diameter proportional to the degree of expansion of the probes;
- an o-ring positioned around said first and second probes to maintain a closed position;
- and,
- a square tip fitting removeably positioned on a distal end of the second probe causing expansion of the second probe from contact with a outer surface of the barrel wall with the first probe biased against an inner surface of said barrel wall.
Dependencies are inferred from the claim text.