Blind rivet assembly with locking collar on rivet stem

Details Blind rivet assembly with locking collar on rivet stem Blind rivet assembly with locking collar on rivet stem

1975-06-19

1977-03-22

Frazier, Roy D.

85 77, F16B 1304

Patent

active

040129845

ABSTRACT:
A blind rivet stem extending through a hollow rivet so that it may be pulled, thereby to expand the tail of the hollow rivet; a collar on the stem has a head fitting in a locking groove within the grip length of the stem so that when the tail of the collar abuts a pressure element bearing against the head of the hollow rivet, it is bulged outwardly into a recess in the rivet head, thereby to interlock the rivet stem and the hollow rivet; a weakened portion such as a break groove is provided on the stem adjacent the bulged end of the collar whereby upon further pulling the rivet breaks at said weakened portion.

REFERENCES:
patent: 2526235 (1950-10-01), Huck
patent: 2545752 (1951-03-01), Singleton
patent: 3038626 (1962-06-01), Simmons
patent: 3148578 (1964-09-01), Gapp
patent: 3292482 (1966-12-01), Fry et al.
patent: 3377907 (1968-04-01), Hurd
patent: 3377908 (1968-04-01), Stau et al.
patent: 3390601 (1968-07-01), Summerlin
patent: 3489056 (1970-01-01), Blakeley

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