Shape memory lock fastener

Details Shape memory lock fastener Shape memory lock fastener

1993-02-10

1994-11-22

Wilson, Neill R.

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

Internally threaded fastener element, e.g., nut, etc.

Multipart

411361, 411909, 4119372, F16B 1900, F16B 3708

Patent

active

053663314

ABSTRACT:
A lock fastener includes a tubular collar having a plurality of protuberances extending radially inwardly from an inner surface thereof and adapted for cooperating with a bolt to retain the collar thereon. A lock ring surrounds an outer surface of the collar and has an initial inner diameter. The lock ring is formed of shape memory metal alloy effective for shrinking the lock ring to a final inner diameter less than the initial inner diameter upon change in temperature thereof to in turn shrink the collar for clamping the protuberances in locking contact with the bolt.

REFERENCES:
patent: 3740839 (1973-06-01), Otte et al.
patent: 4022519 (1977-05-01), Hill
patent: 4880343 (1989-11-01), Matsumoto
patent: 4983085 (1991-01-01), Gray
patent: 5133631 (1992-07-01), Beach
patent: 5160233 (1992-11-01), McKinnis
Raychem Corp., "Tinel (.TM.) Shape-Memory Metal," brochure, 3-pages.
Raychem Corp., "CryoFit (.TM.) High Performance Pipe and Tube Joining System," brochure, 2-pages.

Affiliated with

Also associated with

Rating

Shape memory lock fastener does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1987469