EP 0128912 B1 19881019 - HYDRAULIC, PNEUMATIC, PNEUMATIC/HYDRAULIC OR COMBINED PNEUMATIC/EXPLOSION PRESS
Title (en)
HYDRAULIC, PNEUMATIC, PNEUMATIC/HYDRAULIC OR COMBINED PNEUMATIC/EXPLOSION PRESS
Publication
Application
Priority
CH 740082 A 19821220
Abstract (en)
[origin: WO8402492A1] Press for manufacturing molded or pressed products, comprising a press tool (3) fixed at one end of a moving cylinder (2). Said moving cylinder (2) is coaxially mounted inside a fixed guiding cylinder (4) fixed and coaxially suspended inside a cylinder (5) forming the outer envelope of the press. The press has a moving wall (8) defining a first variable volume chamber, eight hydraulic jacks (11a-11h) with free differential pistons (12a-12h) arranged in crown about the central cylinder (2). The outer envelope (5) comprises a widening (23) provided with at least a bore (44) wherein are arranged explosion means to cause the displacement of the press tool (3) when the press is used as a combined pneumatic/explosion press. The press has reduced overall dimensions, and may be adapted to the manufacture of different articles at various working rates by simple and fast modifications.
IPC 1-7
IPC 8 full level
B30B 1/00 (2006.01); B30B 1/32 (2006.01); B30B 15/16 (2006.01); F15B 11/032 (2006.01)
CPC (source: EP US)
B30B 1/002 (2013.01 - EP US); B30B 1/007 (2013.01 - EP US); B30B 1/32 (2013.01 - EP US); B30B 15/16 (2013.01 - EP US); F15B 11/0325 (2013.01 - EP US); F15B 2015/208 (2013.01 - EP US); F15B 2211/20538 (2013.01 - EP US); F15B 2211/216 (2013.01 - EP US); F15B 2211/7053 (2013.01 - EP US); F15B 2211/775 (2013.01 - EP US); Y10S 72/706 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB LI LU NL SE
DOCDB simple family (publication)
WO 8402492 A1 19840705; CA 1264980 A 19900130; CA 1264980 C 19900130; CH 652647 A5 19851129; DE 3378259 D1 19881124; EP 0128912 A1 19841227; EP 0128912 B1 19881019; US 4658629 A 19870421
DOCDB simple family (application)
CH 8300141 W 19831214; CA 443721 A 19831220; CH 740082 A 19821220; DE 3378259 T 19831214; EP 84900019 A 19831214; US 77086485 A 19850819