Memory defect remedy analyzing method and memory test...

Details Memory defect remedy analyzing method and memory test... Memory defect remedy analyzing method and memory test...

2006-05-30

2006-05-30

Nghiem, Michael (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Performance or efficiency evaluation

Reexamination Certificate

active

07054788

ABSTRACT:
The invention relates to a hydraulic ratchet wrench with a double-action hydraulic cylinder piston drive with a gear pump (20) and a piston pump (21). According to the invention, a working stroke and a return stroke are controlled through a reversal of rotational direction of a pump motor (4), whereby the necessary flow volume is produced automatically via internal flow control valves, and without additional valve controls.

REFERENCES:
patent: 5854796 (1998-12-01), Sato
patent: 62109299 (1987-05-01), None
patent: 7153298 (1995-06-01), None
patent: 9318707 (1997-12-01), None

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