Impact device with linear single acting air spring

Details Impact device with linear single acting air spring Impact device with linear single acting air spring

1978-04-06

1980-05-06

Staab, Lawrence J.

Tool driving or impacting

Processes

173116, 173118, E25B 1500

Patent

active

042012694

ABSTRACT:
An impact device incorporating an improved air spring coupler in the form of a novel cylinder-piston is disclosed, in which the air spring is linear, i.e., the air spring stiffness is substantially constant over the operating range of the air spring displacement. Selected relations between piston area, ram mass, cylinder volume and equivalent length, crank radius, frequency of impacts and power available in the impact device are disclosed for which the improvement of such linear air spring stiffness is obtained for preferred embodiments.

REFERENCES:
patent: 2880585 (1959-04-01), Badcock
patent: 3688848 (1972-09-01), Vick et al.

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