Anti-bounce projectile collecting surface for microballistic pri

Details Anti-bounce projectile collecting surface for microballistic pri Anti-bounce projectile collecting surface for microballistic pri

1979-12-28

1981-05-19

Sewell, Paul T.

Typewriting machines

Typing by other than type-face or type-die

400121, 400686, B41J 302

Patent

active

042681782

ABSTRACT:
My invention relates to a microballistic printer in which I provide a collector wall normally struck by projectiles rebounding from the platen of the printer with an anti-bounce surface. The surface comprises a thin and flexible sheet spaced from the wall to absorb or dissipate the kinetic energy stored in the rebounding projectiles. The sheet has a thickness of the order of four mils and is formed of a material having a ratio of yield strength to modulus of elasticity which is sufficiently high to prevent a permanent set in the area of impact by a projectile.

REFERENCES:
patent: 2766557 (1956-10-01), Pollard
patent: 3477724 (1969-11-01), Wilcox
patent: 3900969 (1975-08-01), Diehn

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