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Title: Spring performance tester for miniature extension springs

Patent ·
OSTI ID:1357509
;

A spring performance tester and method of testing a spring are disclosed that has improved accuracy and precision over prior art spring testers. The tester can perform static and cyclic testing. The spring tester can provide validation for product acceptance as well as test for cyclic degradation of springs, such as the change in the spring rate and fatigue failure.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation
Patent Number(s):
9,651,464
Application Number:
14/477,196
OSTI ID:
1357509
Resource Relation:
Patent File Date: 2014 Sep 04
Country of Publication:
United States
Language:
English

References (11)

Spring Tester patent July 1972
Device For The Testing Of Contact Springs patent April 1975
Process and an apparatus for testing spring-loaded elements having essentially linear pitch of spring patent July 1991
Spring tester patent November 1998
Helical load cell patent February 1999
Spring testing containment patent October 2000
Method and apparatus for fatigue testing patent August 2005
Fixture for testing spring squareness under a load patent July 2006
Spring testing apparatus and method patent July 2011
Research press patent August 2011
Spring force component tester patent April 2012

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