Manual recycler for detonating impact tool

Details Manual recycler for detonating impact tool Manual recycler for detonating impact tool

1987-01-08

1987-12-15

Ostrager, Allen M.

Power plants

One shot explosion actuated expansible chamber type motor

60633, F01B 2908, F02N 1300

Patent

active

047123796

ABSTRACT:
A detonating impact tool 10 has a manual recycler that works by manually pressing the tool and a fastener 25 against a work piece 51 to push a front housing 12 into a main housing 11 against a compression spring 30. This charges a detonation chamber 15 with a fuel and air mixture that is precompressed and detonated to drive a piston 20 and its impact rod 22 forward, driving the fastener into the work piece. On completion of its impact stroke, the piston clears an exhaust port 31, allowing exhaust gases to escape through an exhaust passageway 32. Following this, purging air rushes in through inlet 27 as the exhaust gases collapse; and as the tool is retracted from the work piece, pumping seal 26 draws purging, cooling, and recharging air into detonation chamber 15 as front housing 12 is returned to its forward position by the spring.

REFERENCES:
patent: 3645091 (1972-02-01), Ivanov et al.
patent: 4218888 (1980-08-01), Jayne
patent: 4282714 (1981-08-01), Fiocchi
patent: 4365471 (1982-12-01), Adams
patent: 4510748 (1985-04-01), Adams

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