Testing device with acceleration tube

Details Testing device with acceleration tube Testing device with acceleration tube

1991-01-29

1993-02-09

Williams, Hezron E.

Measuring and testing

Testing impact delivering device

G01N 330, F41A 2146

Patent

active

051844990

ABSTRACT:
A testing device, especially for ignition elements, has an acceleration tube (3) with an acceleration piston (4) slidable therein. The space in the acceleration tube (3) between the piston (4) and an exit aperture (7) is connectable with a vacuum pump (10) to accelerate the acceleration piston (4). As soon as a retaining device (5) releases the acceleration piston (4), the latter is accelerated by atmospheric pressure in a direction towards the exit aperture (7). An impact body (6), releasably held in the acceleration piston (4), is adapted to release itself from the acceleration piston (4) as soon as the latter hits the end of the acceleration tube (3), and then flies out of the exit aperture (7) of the acceleration tube (3) against the test object. The invention can also be applied in the field of material testing and quality control.

REFERENCES:
patent: 487487 (1892-12-01), Mason
patent: 3019073 (1962-01-01), Hall
patent: 3034335 (1962-05-01), Muller et al.
patent: 3426578 (1969-02-01), Bergs et al.
patent: 3597969 (1971-08-01), DiCarchack
patent: 3792354 (1974-02-01), Slaght et al.
patent: 3805608 (1974-04-01), Schmidt et al.
patent: 3823600 (1974-07-01), Wolff
patent: 4349200 (1982-09-01), Wakefield
Mashimo, Tsutomo and Sawaoka, Akira, "A Measurement System for Interior Projectile Motion . . . Gas Gun," Japanese Journal of Applied Physics, vol. 20, No. 5, May, 1981, pp. 963-970.

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