Installation tool, tangless helically coiled insert

Details Installation tool, tangless helically coiled insert Installation tool, tangless helically coiled insert

1984-02-21

1985-11-19

Jones, Jr., James L.

Metal working

Means to assemble or disassemble

By rotation of work part

81443, 81450, B23P 1904

Patent

active

045533024

ABSTRACT:
An insertion tool for a helically coiled wire insert of the type used for tapped holes in parent material that is generally softer than a fastener being screwed into the tapped hole, whereby a mandrel having a threaded lead portion and a pivotal pawl inserted in a groove below the threaded portion so that the pawl engages a recess of the insert, in order that the insert may be screwed into the tapped hole. The pivotal pawl also permits removal and reinsertion of the tool after the coil insert has been installed.

REFERENCES:
patent: 1676775 (1928-07-01), Doherty
patent: 1699306 (1929-01-01), Millen
patent: 2385357 (1945-09-01), Haas
patent: 2390515 (1945-12-01), Cram et al.
patent: 2390545 (1945-12-01), Lang
patent: 2392843 (1946-01-01), Eckener
patent: 2584118 (1952-02-01), Forster
patent: 2586805 (1952-02-01), Forster
patent: 2969588 (1961-01-01), Stephens
patent: 3093895 (1963-06-01), Eddy
patent: 3348293 (1967-10-01), Newton et al.
patent: 3602975 (1971-09-01), Thurston
Heli-Coil Screw Thread Inserts Bulletin 900, 1970.
Heli-Coil Power Inserting Tools Bulletin 859-B, 1970.

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