Bolt and nut evaluator
AssigneeThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration
InventorsJames J. Kerley, Raymond Burkhardt, Steven White
Life of this patent
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Abstract
A device for testing fasteners such as nuts and bolts is described which consists of a fixed base plate having a number of threaded and unthreaded holes of varying size for receiving the fasteners to be tested, a torque marking paper taped on top the fixed base plate for marking torque-angle indicia, a torque wrench for applying torque to the fasteners being tested, and an indicator for showing the torque applied to the fastener. These elements provide a low-cost, non-destructive device for verifying the strength of bolts and nuts.
Claims5
A device for testing fasteners comprising:
- a fixed base plate having a plurality of holes of varying size for receiving said fasteners to be tested;
- torque marking paper affixed to said fixed base plate for receiving torque-angle indicia;
- a torque applying means for applying torque to said fasteners being tested;
- and
- means for indicating said applied torque.
Dependencies are inferred from the claim text.