Spear gun shaft and method of making same

Details Spear gun shaft and method of making same Spear gun shaft and method of making same

2005-10-14

2008-12-16

Rowan, Kurt (Department: 3643)

Fishing, trapping, and vermin destroying

Fishing

Harpoons and spears

Reexamination Certificate

active

07464497

ABSTRACT:
Making a spear gun shaft includes selecting a solid steel drill rod of desired length; wrapping the rod with thermo-setting polymer impregnated carbon fiber sheet; covering rod with compression wrapper; curing the resin coated rod in an oven; removing the covering; machining the cured resin to the desired diameter with ends exposing drill rod; affixing a spear tip-carrying member to an end of the rod; affixing a trigger-engaging member to opposite end of the rod; affixing collars over the joints formed between rod and members to reinforce the shaft at the respective joints; mounting a sliding collar onto rod; and affixing the collars with metal adhesive to waterproof and seal the respective joints covered by the collars.

REFERENCES:
patent: 4131701 (1978-12-01), VanAuken
patent: 4173670 (1979-11-01), VanAuken
patent: 4178406 (1979-12-01), Russell
patent: 4214932 (1980-07-01), Van Auken
patent: 4234190 (1980-11-01), Airhart
patent: 4404053 (1983-09-01), Saffire
patent: 4555113 (1985-11-01), Shimazaki et al.
patent: 4836545 (1989-06-01), Pompa
patent: 6550178 (2003-04-01), Rogers

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