Self-contained impact tool

Details Self-contained impact tool Self-contained impact tool

1974-12-16

1976-07-06

Custer, Jr., Granville Y.

Elongated-member-driving apparatus

Explosive-type driving means

With plunger

B25C 108

Patent

active

039677710

ABSTRACT:
An impact tool, and particularly a nail driver, utilizing a vaporized combustible mixture which may be ignited upon demand to drive a piston and associated ram in a cylinder to accomplish work such as driving a nail. In a particularly preferred embodiment, a portion of the driving energy is stored and utilized to recharge the device for rapid semi-automatic demand operation. The recharge energy may be stored in, for example, a spring or in a pressurized high-pressure cylinder and the fuel stored in bulk and metered during the recharge process.

REFERENCES:
patent: 2898893 (1959-08-01), Rohrer et al.
patent: 3042008 (1962-07-01), Liesse
patent: 3362602 (1968-01-01), Anstett
patent: 3381672 (1968-05-01), Tobias et al.
patent: 3850359 (1974-11-01), Obergfell

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