Metal deforming – With tool carrier
Patent
1988-08-25
1990-01-02
Jones, David
Metal deforming
With tool carrier
7245302, 100214, 100258R, B21D 3712
Patent
active
048904759
ABSTRACT:
A prestressed hydraulic press includes a pressure generator for selectively prestressing the hydraulic press such that the press is under substantially constant stress during all phase operations of the hydraulic press.
REFERENCES:
patent: 4291571 (1981-09-01), Claussen
patent: 4809535 (1989-03-01), Ellis
Jones David
Maschinenfabrik Lauffer GmbH & Co. KG
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