(19)
(11) EP 1 074 749 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.10.2002 Bulletin 2002/40

(43) Date of publication A2:
07.02.2001 Bulletin 2001/06

(21) Application number: 00116843.4

(22) Date of filing: 04.08.2000
(51) International Patent Classification (IPC)7: F15B 13/00, F16L 29/00
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 06.08.1999 IT TO990698

(71) Applicant: MERLO S.P.A. Industria Metalmeccanica
12020 Frazione San Defendente di Cervasca (Cuneo) (IT)

(72) Inventor:
  • Galfre, Renato, c/o Merlo Spa
    12020 Fraz.San Defendente di Cervasca/Cu (IT)

(74) Representative: Marchitelli, Mauro et al
c/o Buzzi, Notaro & Antonielli d'Oulx Via Maria Vittoria 18
10123 Torino
10123 Torino (IT)

   


(54) Press-block coupling for fluid circuits


(57) A press-block coupling for fluid circuits, comprising:
  • a base body (12) provided with a first opening (16), designed to be connected to a branch of a fluid circuit, and with a second opening (20), designed to establish a fluid connection with a corresponding opening of a complementary coupling; and
  • at least one main valve element (26) which can slide in the base body (12) and co-operates with a valve seat (24) designed to activate or interrupt fluid connection between the first opening (16) and the second opening (20).

The press-block coupling comprises an auxiliary valve element (58) with mechanical opening, set in such a way that, in use, following upon mechanical opening of the auxiliary valve element (58), a variation in pressure is produced in said main chamber (18) such as to bring about opening of the main valve element (26) under the action of the pressure of the fluid.






Search report