Method and apparatus for fastener tension inspection

Measuring and testing – Ductility or brittleness

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

73139, G01L 524

Patent

active

039629104

ABSTRACT:
A fastener tension inspection system for use with torque producing power tools such as nut runners, screwdrivers, or the like. The inspection system includes a means for measuring torque or other tension proportional function applied to a fastener and a means for measuring at least one additional parameter associated with fastener tightening; for example, time or rotation. With appropriate electronic circuitry, the torquing cycle is started by freerunning the fastener and bringing it up to a predetermined low level of torque sufficient to seat the fastener. Upon reaching the predetermined low level of torque, the means for measuring the additional parameter is initiated and continues until final torquing is completed. The predetermined minimum torque level on the fastener must be reached and a predetermined maximum torque level not exceeded within a predetermined range of the additional parameter or the fastener is rejected. The system is capable of detecting such common fastener defects as insufficient final torque, cross-threading, defective threads or thread stripping.

REFERENCES:
patent: 1985916 (1935-01-01), Coates et al.
patent: 2756622 (1956-07-01), LaBelle
patent: 3368396 (1968-02-01), Van Burkleo et al.
patent: 3440869 (1969-04-01), Hardiman
patent: 3606664 (1971-09-01), Weiner
patent: 3643501 (1972-02-01), Pauley
patent: 3693726 (1972-09-01), Hornig et al.
patent: 3745820 (1973-07-01), Weiner

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method and apparatus for fastener tension inspection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for fastener tension inspection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for fastener tension inspection will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1688671

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.