Spear gun having air valve formed by inner and outer barrel

Details Spear gun having air valve formed by inner and outer barrel Spear gun having air valve formed by inner and outer barrel

1986-06-17

1987-04-28

Jordan, M.

Fishing, trapping, and vermin destroying

Fishing

Harpoons and spears

A01K 8104

Patent

active

046603158

ABSTRACT:
A spear gun preferably operated from the low pressure gas outlet of a diver's air tank. The gun includes a first barrel over which a second barrel is slidably mounted. A gas inlet is mounted on the second barrel which in turn is normally forwardly positioned in a first non-firing position. Retraction of the second barrel acts as a slide valve to permit gas to enter the first barrel and force an arrow, etc. outwardly therefrom.

REFERENCES:
patent: 2964031 (1930-12-01), Dotson
patent: 3369609 (1968-02-01), Fogelgren
patent: 3484665 (1969-12-01), Mountjoy et al.
patent: 3525319 (1970-08-01), Waldeisen
patent: 3580172 (1971-05-01), Hendricks

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