Free-piston cutting machine

Details Free-piston cutting machine Free-piston cutting machine

1999-01-25

2000-10-03

Carone, Michael J.

Mechanical guns and projectors

Fluid pressure

Provided by movement of user-actuated, projector-mounted...

124 71, 124 72, 124 73, 89 7, 836394, 227 9, 227 10, 227 11, F41B 1100

Patent

active

061258342

ABSTRACT:
A cutting machine includes a gun barrel for receiving a projectile. A compression tube is disposed in flow communication with the barrel and includes a piston therein. A reservoir is disposed in flow communication with the tube and receives a first gas under pressure. A second gas fills the compression tube on a front face of the piston. And, the pressurized first gas is discharged into the tube on a back face of the piston to accelerate the piston through the tube for compressing the second gas, and in turn launching the projectile through the barrel to impact a workpiece.

REFERENCES:
patent: 2965000 (1960-12-01), Skinner
patent: 3695715 (1972-10-01), Godfrey
patent: 4709686 (1987-12-01), Taylor et al.
patent: 4770269 (1988-09-01), Woodrow
patent: 4771758 (1988-09-01), Taylor et al.
patent: 5193517 (1993-03-01), Taylor et al.
patent: 5574244 (1996-11-01), Powell et al.
patent: 5996709 (1999-12-01), Norris

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