Press

Details Press Press

1986-09-25

1987-06-02

Spruill, Robert L.

Metal deforming

With means to drive tool

Including pneumatic- or fluid-actuated tool support

72348, 72351, 72358, 267119, 100299, 92 85B, B21J 728

Patent

active

046692983

ABSTRACT:
A press comprises a bed affixed to a frame, a slide vertically movably provided above the bed, a lower cushion mounted to the underside of the bed and having chambers, an upper cushion mounted to the slide and having chambers, a pneumatic hydraulic control circuit for a pressure source of each of the cushions, and a control for controlling individually the pressure within the chambers, wherein a complicated workpiece can be formed in one stroke of the slide.

REFERENCES:
patent: 2233164 (1941-02-01), Glasner
patent: 2269778 (1942-01-01), Merrill
patent: 2294451 (1942-09-01), Ernst
patent: 2300162 (1942-10-01), Maude
patent: 2407855 (1946-09-01), Stephens
patent: 3124340 (1964-03-01), Williamson
patent: 3405546 (1968-10-01), Hoffman et al.
patent: 3435653 (1969-04-01), Scaletta et al.
patent: 3653301 (1972-04-01), Clendenin et al.
patent: 4056965 (1977-11-01), Heiser
patent: 4309888 (1982-01-01), Miller et al.

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