Impact hammer

Details Impact hammer Impact hammer

1993-07-01

1995-03-21

Rada, Rinaldi I.

Tool driving or impacting

Impacting devices

Hammer head constitutes piston of drive motor

173210, 92209, E21C 306, E21B 102

Patent

active

053987721

ABSTRACT:
In an impact drilling apparatus, an impact hammer is provided that includes a body portion and a piston head on the body portion. The piston head has a larger outer periphery than the body portion. The body portion and the piston head have substantially the same cross-sectional area at all points along a longitudinal axis of the hammer. The piston head is disposed at one end of the body portion and is funnel-shaped.

REFERENCES:
patent: 1866819 (1932-07-01), Renfer
patent: 2598455 (1952-05-01), Smith
patent: 2694383 (1954-11-01), Larcen
patent: 2765776 (1956-10-01), Pyk
patent: 2919678 (1960-01-01), Sublett et al.
patent: 3035548 (1962-05-01), Wittlich
patent: 3661216 (1972-05-01), Yamanaka
patent: 3760887 (1973-09-01), Palauro
patent: 3952819 (1976-04-01), Adcock
patent: 4179983 (1979-12-01), Wallace
patent: 4196655 (1980-04-01), LeBlanc et al.
patent: 4408668 (1983-10-01), Kuhn et al.
patent: 4653596 (1987-03-01), Kostylev et al.
patent: 4690226 (1987-09-01), Schnizler et al.
patent: 4819739 (1989-04-01), Fuller
patent: 4821813 (1989-04-01), Jenne et al.
patent: 4852664 (1989-08-01), Terada et al.
patent: 4872516 (1989-10-01), MacFarlane et al.
patent: 4923018 (1990-05-01), Meek
patent: 4945998 (1990-08-01), Yamanaka
patent: 4993504 (1991-02-01), Rodert et al.
patent: 5056606 (1991-10-01), Barthomeuf
patent: 5064005 (1991-11-01), Krone
patent: 5065823 (1991-11-01), Gien et al.
patent: 5088566 (1992-02-01), Gustafsson et al.
patent: 5129466 (1992-07-01), Bartels et al.
patent: 5134989 (1992-08-01), Akahane

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