High velocity anti-surge spring assembly

Details High velocity anti-surge spring assembly High velocity anti-surge spring assembly

1977-04-29

1978-11-21

Bentley, Stephen C.

Ordnance

Automatic

Receiver closures and/or breech block return means

267 34, F41D 1112

Patent

active

041260805

ABSTRACT:
A hydraulic spring combination to replace a long spring having surging chcteristics in high velocity application with reciprocating parts in automatic and semiautomatic weapons. On recoil a rod penetrates a fluid chamber, causing a piston to move against a shorter spring at a slower velocity proportional to the ratio of rod cross-sectional area to the piston cross-sectional area. The shorter spring returns the piston to move the rod hydraulically to return the reciprocating parts to battery position.

REFERENCES:
patent: 1397377 (1921-11-01), Harpham
patent: 2497350 (1950-02-01), Ferda
patent: 3276763 (1966-10-01), Blatt
patent: 3417660 (1968-12-01), Harbrecht
patent: 3688641 (1972-09-01), Curtis et al.

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