Pneumo-hydraulic booster with rapid-traverse feature

Details Pneumo-hydraulic booster with rapid-traverse feature Pneumo-hydraulic booster with rapid-traverse feature

1979-11-07

1981-09-15

Hershkovitz, Abraham

Power plants

Pressure fluid source and motor

Pulsator

60593, F15B 708

Patent

active

042889871

ABSTRACT:
The invention relates to a pneumo-hydraulic booster with rapid-traverse feature, particularly for driving punching tools, with a working piston which executes a rapid-traverse positioning stroke, a power stroke and a return stroke, with at least one further piston, and with chambers which adjoin these pistons and which, according to a program can be connected to a source of compressed air, in which arrangement a first chamber is pressurized during the positioning stroke and the power stroke, a second chamber is pressurized only during the power stroke and a third chamber is pressurized only during the return stroke and all chambers are vented at other times.

REFERENCES:
patent: 3145627 (1964-08-01), Neukom
patent: 3270625 (1966-09-01), Huntington
patent: 3406703 (1968-10-01), Gordon
patent: 4192222 (1980-03-01), Dits

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