Fastener collar remover

Details Fastener collar remover Fastener collar remover

1990-04-20

1991-01-22

Howell, Daniel W.

Cutting by use of rotating axially moving tool

With radially outer limit of cutting edge moving to define...

408 72B, 408 84, 408241B, B23B 4902

Patent

active

049867024

ABSTRACT:
A device for removing a collar coaxially fixed to a projecting end of a fastener axially extending through the surface of a substrate, the device comprising a jig having opposed base and top surfaces and a cavity open at the base surface and disposed to coaxially receive the collar when the base surface is disposed on the substrate, at least one drill bit bushing extending through the jig on an axis generally parallel to and spaced a predetermined distance from the axis of the cavity, the bushing being disposed to guide a drill bit into engagement with the collar when disposed in the cavity, and an adjustable screw for controlling the axial length of drill bit extending through the bushing.

REFERENCES:
patent: 1916414 (1933-07-01), Chapman
patent: 2670639 (1954-03-01), Flowers et al.
patent: 2688185 (1954-09-01), Brazil et al.
patent: 3015240 (1962-01-01), Hodnett
patent: 4447176 (1984-05-01), Blough et al.
patent: 4646413 (1987-03-01), Nall et al.
patent: 4690593 (1987-09-01), Nee et al.
patent: 4822216 (1989-04-01), Howard

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