Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Frangible member
Patent
1980-11-07
1983-09-20
Holko, Thomas J.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Frangible member
411 56, 411 70, F16B 1308
Patent
active
044052731
ABSTRACT:
A blind fastener is disclosed which comprises a sleeve and pin of a selected metal in which the pin is designed to form a blind head over a wide range of grips which offers substantially uniform tensile values over the entire grip range. The blind head forming end of the pin includes a plurality of spaced annular or helical ribs formed between spaced annular or helical grooves which are designed to progressively distort or fold as the pin is pulled through the sleeve, at least one of the ribs remaining in an unfolded condition after the fastener is set. The pin shank and internal opening of the sleeve may be provided with complementary tapers to provide a sealing effect if desired.
REFERENCES:
patent: 2531270 (1950-11-01), Hood
patent: 2546602 (1951-03-01), Keating
patent: 2931532 (1960-04-01), Gapp
patent: 3148578 (1964-09-01), Gapp
patent: 3286580 (1966-11-01), Jeal
patent: 3653294 (1972-04-01), Nason
patent: 3693247 (1972-09-01), Brown
patent: 3702088 (1972-11-01), Schmitt
patent: 3880042 (1975-04-01), Binns
patent: 4046053 (1977-09-01), Azvi et al.
patent: 4143579 (1979-03-01), Ziaycek
Dixon Richard D.
Ruhl John H.
Holko Thomas J.
Huck Manufacturing Company
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