Carpenters hammer double jolt

Details Carpenters hammer double jolt Carpenters hammer double jolt

1988-05-23

1989-05-23

Hartman, Judy

Tools

Hammer

Having replaceable striking face

81 20, B25D 100

Patent

active

048319015

ABSTRACT:
A hammer having a spring to augment the magnitude of strike force through application of a sliding weight free-moving as a projectile in a hollow shaft inside the hammer head. The hammer gains impact force through the use of a double impact hammer head with the spring propelling a portion of the inner hammer head mass to a greater velocity than the surrounding position of the head.

REFERENCES:
patent: 2282932 (1942-05-01), Burneh
patent: 2776689 (1957-01-01), Falzone
patent: 3088506 (1963-05-01), Biachini
patent: 3130762 (1964-04-01), Kerr
patent: 3341261 (1967-09-01), Fenlin
patent: 3948301 (1976-04-01), Hays
patent: 4006763 (1977-02-01), Ordonez

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