Measuring and testing – Vibration – By mechanical waves
Reexamination Certificate
2005-03-29
2005-03-29
Chapman, John E. (Department: 2856)
Measuring and testing
Vibration
By mechanical waves
C073S644000
Reexamination Certificate
active
06871545
ABSTRACT:
A system for non-destructive testing using acoustic techniques includes first and second measuring probes and an electronic unit. Each probe includes a penetrating end and a retaining flange end. Each probe further includes a handle slideably coupled to the probe and a transducer for detecting stress waves. The probes are lightweight, portable, and rugged for field testing wood products.
REFERENCES:
patent: 3066525 (1962-12-01), Harris
patent: 6467352 (2002-10-01), Schafer et al.
Chapman John E.
Christensen O'Connor Johnson & Kindness PLLC
Weyerhaeuser Company
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