Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having structure to restrict rotation of threaded – mating... – Comprising a thread lock
Patent
1981-04-27
1989-05-02
Wilson, Neill
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having structure to restrict rotation of threaded, mating...
Comprising a thread lock
411436, 10152T, F16B 3930
Patent
active
048263770
ABSTRACT:
A self-locking fastener includes a male member, such as a bolt, having a standard, helical, male thread of constant diameter which is deformed by the special female locking threads of a female member, such as a nut. The female threads are defined by leading and trailing flanks which converge to provide a truncated root that frictionally engages and deforms a portion of the male crest. The trailing flanks of the male and female threads are inclined at the same angle and frictionally engage each other throughout their entire depth. The leading flanks of the male and female threads diverge away from each other to provide a space adjacent the truncated female root for receiving the deformed portion of the male crest therewithin. The deformed portion of the male crest and the full engagement of the trailing flanks produces firm metal-to-metal contact between the members throughout the entire length of the female thread, thereby procluding lateral movement of one member relative to the other. A tapping tool having a male thread which is the mirror image of the female thread to be formed is employed to produce the thread form in the female member.
REFERENCES:
patent: 3731725 (1973-05-01), Brophy
patent: 3907017 (1975-09-01), Stanwick
patent: 4150702 (1979-04-01), Holmes
patent: 4293262 (1981-10-01), Holmes
patent: 4341497 (1982-07-01), Downey et al.
LandOfFree
Self-locking fastener and tool for making same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self-locking fastener and tool for making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-locking fastener and tool for making same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-581867