Device for applying a working power to a workpiece

Details Device for applying a working power to a workpiece Device for applying a working power to a workpiece

2003-03-06

2009-02-24

Jones, David B (Department: 3725)

Severing by tearing or breaking

Breaking or tearing apparatus

Movable breaking tool

C225S100000, C225S096000

Reexamination Certificate

active

07494034

ABSTRACT:
The invention relates to a device for applying a working force to a workpiece, using a working cylinder. The device includes a working piston, an actuation chamber that can be supplied with a hydraulic medium, a recirculation chamber that can be supplied with a gaseous medium and a force transmission device that co-operates with the working piston. This allows a transmission or an application of the working force to a workpiece that is as rapid as possible with a technical construction that is as simple as possible.

REFERENCES:
patent: 4754906 (1988-07-01), Brovold
patent: 5503317 (1996-04-01), Jones et al.
patent: 6386417 (2002-05-01), Jones et al.
patent: 6474526 (2002-11-01), Hahnel et al.
patent: 6571999 (2003-06-01), Hase
patent: 7318543 (2008-01-01), Cavallo
patent: 1950974 (1970-04-01), None
patent: G9210167.4 (1992-11-01), None
patent: 19624385 (1998-01-01), None
patent: 19928540 (2000-11-01), None
patent: 0661125 (1995-07-01), None
patent: 1228089 (1971-04-01), None
patent: 36-15113 (1936-09-01), None
patent: 52-3985 (1977-01-01), None
patent: WO 02/090028 (2002-11-01), None
Search Report from International Application No. PCT/EP03/02320 mailed Jun. 27, 2003.

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