Method for manufacture of captive nut and washer

Details Method for manufacture of captive nut and washer Method for manufacture of captive nut and washer

1985-12-05

1987-04-07

Combs, E. Michael

B21D 5324

Patent

active

046549137

ABSTRACT:
A method for producing captive washer wheel nuts. The washer and nut body are formed as a single piece, greatly simplifying and reducing the number of separate manufacturing steps, such as threading and forming bearing surfaces on the washer and nut body. An axially symmetric frusto-conical groove at an oblique angle to the axis of symmetry is formed in the nut-washer blank. The groove is sufficiently deep to be closer to the axis of symmetry than a small-radius concave feature on the underside of the washer. Upon application of axial compression, the washer separates from the nut body along a frusto-conical fracture surface defined between the bottom of the groove and the concave feature on the washer. The orientation of this fractured surface causes the washer to be captured to the nut body.

REFERENCES:
patent: 2380994 (1945-08-01), Pummill
patent: 2520259 (1950-08-01), Pummill
patent: 3141182 (1964-07-01), Lanius, Jr.
patent: 3602976 (1971-09-01), Grube
patent: 3727254 (1973-04-01), Tildesley
patent: 3728933 (1973-04-01), Grube
patent: 3862458 (1975-01-01), Stanaitis
patent: 4431353 (1984-02-01), Capuano

Affiliated with

Also associated with

Rating

Method for manufacture of captive nut and washer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for manufacture of captive nut and washer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacture of captive nut and washer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1078043