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Patent Searching and Data


Title:
STOPPER CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/072943
Kind Code:
A3
Abstract:
A control device (1 ) for a stopper (3) comprises: - an outer casing (10), - a control rod (6) sliding through the casing (10), rigidly attachable to the stopper (3), - a hydraulic circuit (20) including a double-acting hydraulic cylinder (21 ) and a reversible hydraulic pump (9), the hydraulic cylinder (21 ) having a first and a second chamber (21 a, b) between which a piston (22) slides, the hydraulic pump (9) being connected directly to the first and second chamber (21a, b) by means of a first branch and a second branch (20a, b) of said hydraulic circuit (20, respectively, the piston being rigidly attached to the control rod (6), the hydraulic circuit (20) being entirely housed in the outer casing (10), - a control circuit (30) connected to the hydraulic circuit (20) to control the position of the piston (22).

Inventors:
DE LUCA ANDREA (IT)
DEL TEDESCO STEFANO (IT)
Application Number:
PCT/IB2013/059999
Publication Date:
July 03, 2014
Filing Date:
November 08, 2013
Export Citation:
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Assignee:
DANIELI OFF MECC (IT)
International Classes:
B22D41/20
Foreign References:
US5421559A1995-06-06
FR2184520A11973-12-28
GB1246439A1971-09-15
Attorney, Agent or Firm:
CINQUANTINI, Bruno et al. (Corso di Porta Vittoria 9, Milano, IT)
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