Blind fastener with mechanical thread lock

Details Blind fastener with mechanical thread lock Blind fastener with mechanical thread lock

1993-01-06

1993-08-24

Wilson, Neill R.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Having separate expander means

Frangible member

411 55, 411329, F16B 1304, F16B 1306

Patent

active

052383423

ABSTRACT:
A fastener having an internally threaded nut body, an externally threaded stem and a lock collar keyed to the nut body. The lock collar has a plurality of spring arms extending radially at an angle into the internally threaded bore of the nut body. During setting of the fastener, the stem is rotated in a tightening direction relative to the nut body. However, when the fastener is fully set, the spring arms will engage axial grooves in the stem to prevent relative rotation in a loosening direction between the nut body and the stem. This configuration forms a positive mechanical lock between the stem and the nut body and prevents the fastener from loosening and losing its clamping force, even when the fastener is subjected to high levels of stress and vibration.

REFERENCES:
patent: 439754 (1890-11-01), Thompson
patent: 785528 (1905-03-01), Thompson
patent: 1020668 (1912-03-01), Thompson
patent: 1139897 (1915-05-01), Myers
patent: 1153898 (1915-09-01), Duckett
patent: 2521257 (1950-09-01), Sample
patent: 3129630 (1964-04-01), Wing et al.
patent: 3474846 (1969-10-01), Bien
patent: 3643544 (1972-02-01), Massa
patent: 4137817 (1979-02-01), Siebol
patent: 4595324 (1986-06-01), Sadri
patent: 4659272 (1987-04-01), Pratt
patent: 4778318 (1988-10-01), Jeal
patent: 4950115 (1990-08-01), Sadri
patent: 5123792 (1992-06-01), Strogel

Affiliated with

Also associated with

Rating

Blind fastener with mechanical thread lock does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Blind fastener with mechanical thread lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blind fastener with mechanical thread lock will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-825204