Method of controlling impact force and shock interval in drop ha

Details Method of controlling impact force and shock interval in drop ha Method of controlling impact force and shock interval in drop ha

1983-03-01

1986-02-11

Meister, James M.

Tool driving or impacting

Impacting devices

Hammer head comprises plural parts or diverse materials

173139, B23B 4516

Patent

active

045694028

ABSTRACT:
Method of controlling impact force and shock interval at a drop hammer of the type which has a core (10) and a number of casings (12, 14, 16, 19) arranged concentrically around the core. Between the core and the casings, spacings are arranged, and the core and the casings are interconnected alternatingly at one end and the other beginning at the upper end of the core. Between the lower end of the core and those ends of one or more casings, which are not permanently connected, a shock wave transferring connection is provided to short-circuit the path of the shock wave through the core and the casings.

REFERENCES:
patent: 2101869 (1937-12-01), Noble
patent: 2800884 (1957-07-01), Mori
patent: 3709478 (1973-01-01), Kisling, III
patent: 3796271 (1974-03-01), Amtsberg
patent: 3823786 (1974-07-01), Voitsekhousky et al.
patent: 3947008 (1976-03-01), Mullins
patent: 4204421 (1980-05-01), Rogers et al.
patent: 4350214 (1982-09-01), Landaeus

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