Method for making a blind fastener

Details Method for making a blind fastener Method for making a blind fastener

1990-08-08

1991-11-19

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

164137, 264250, 264254, B29C 4514, F16B 1306

Patent

active

050664468

ABSTRACT:
A method for making a blind fastener that has a flanged outer sleeve and a flanged inner sleeve that are secured together, wherein the outer sleeve has a socket that receives a lug from the inner sleeve to provide joint axial movement and wherein the outer sleeve has a plurality of slits that receive at least one radial projection from the inner sleeve to prevent rotation between sleeves. The inner sleeve has a thinner upper portion and a thicker lower portion with a score line therebetween to facilitate the separation of this portion. The inner sleeve has a central threaded bore to receive a threaded bolt for fastening purposes and to upset the outer sleeve relative to the flanged portion thereof to secure such fastener to a thin workpiece.

REFERENCES:
patent: 2409352 (1946-10-01), Gill
patent: 2763314 (1956-09-01), Gill
patent: 3030705 (1962-04-01), Gill
patent: 4007659 (1977-02-01), Stencel
patent: 4238446 (1980-12-01), Tanaka
patent: 4639175 (1987-01-01), Wollar
patent: 4859128 (1989-08-01), Brecz et al.
patent: 4875815 (1989-10-01), Phillips, II

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