Fixture for testing spring squareness under a load

Details Fixture for testing spring squareness under a load Fixture for testing spring squareness under a load

2006-07-04

2006-07-04

Guadalupe-McCall, Yaritza (Department: 2859)

Measuring and testing

Spring testing

C073S818000, C033S535000

Reexamination Certificate

active

07069778

ABSTRACT:
A fixture and technique for testing a coil spring selected from a supply of springs. Each spring has an unstressed generally helical configuration and the test determines an excess departure from the helical configuration of a spring under a compressive load. The first end of a selected spring is radially fixed in a first guide while a second end of the spring end is axially retained in a movable second guide that is supported on rollers to allow omni-directional transverse radial motion of the second end. An axial compressive force is applied to the selected spring while allowing the second end relatively free radial motion. When compression induced radial motion of the second end exceeds a predetermined threshold, the second end the selected spring closes a normally opened electrical circuit to inform an operator that the selected spring is excessively out of square and should be rejected.

REFERENCES:
patent: 1565519 (1925-12-01), Spooner
patent: 1898529 (1933-02-01), Farmer
patent: 2568596 (1951-09-01), Ruge
patent: 2671210 (1954-03-01), Aviles
patent: 2784588 (1957-03-01), Humble et al.
patent: 3206971 (1965-09-01), Ernst
patent: 4157033 (1979-06-01), Shereda et al.
patent: 4472882 (1984-09-01), Hutter
patent: 5579659 (1996-12-01), Roberts
patent: 5832774 (1998-11-01), Smith

Affiliated with

Also associated with

Rating

Fixture for testing spring squareness under a load does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fixture for testing spring squareness under a load, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fixture for testing spring squareness under a load will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3546285