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Title: Spring performance tester for miniature extension springs

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

Other works cited in this record:

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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