Barrel measuring device

Details Barrel measuring device Barrel measuring device

2008-03-25

2008-03-25

Guadalupe-McCall, Yaritza (Department: 2859)

Geometrical instruments

Distance measuring

Opposed contacts

C033S542000

Reexamination Certificate

active

11529630

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.

REFERENCES:
patent: 2312222 (1943-02-01), Tanner
patent: 2502613 (1950-04-01), Zanolio
patent: 4348812 (1982-09-01), Middleton
patent: 5483751 (1996-01-01), Kodato
patent: 5570513 (1996-11-01), Peterson
patent: 5604989 (1997-02-01), Stevenson
patent: 6604289 (2003-08-01), Nikolov
patent: 6766583 (2004-07-01), Economaki
patent: 6957498 (2005-10-01), Tsai

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