Hole saw pilot pin with plug retrieval mechanism

Details Hole saw pilot pin with plug retrieval mechanism Hole saw pilot pin with plug retrieval mechanism

1979-07-26

1981-07-21

Hinson, Harrison L.

Cutting by use of rotating axially moving tool

With product handling or receiving means

408207, B23B 4700, B23B 5100

Patent

active

042795516

ABSTRACT:
A catch is pinned or screwed to a conventional hole saw pilot pin. The catch is free to pivot through an axial cutout in the pilot pin. The catch is sized and oriented to pass through a previously drilled standard sized pilot hole and is then pivotable out of the cutout into a projecting position extending radially of the pilot hole. In this position, a cut plug is retained on the pilot pin rather than dropped. Upon completion of sawing, the catch can be manually positioned back into the pilot pin cutout and the cut plug can then be removed.

REFERENCES:
patent: 485715 (1892-11-01), Smith
patent: 2394612 (1946-02-01), Horne, Jr.
patent: 2404027 (1946-07-01), Belanger
patent: 2601434 (1952-06-01), DuBois
patent: 2800812 (1957-07-01), Mueller et al.
patent: 3572182 (1971-03-01), MacDonald
patent: 3922107 (1975-11-01), Fowler
patent: 4057357 (1977-11-01), Daghe et al.

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