(19)
(11) EP 1 923 143 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.08.2008 Bulletin 2008/34

(43) Date of publication A2:
21.05.2008 Bulletin 2008/21

(21) Application number: 07024747.3

(22) Date of filing: 26.10.1995
(51) International Patent Classification (IPC): 
B05B 11/00(2006.01)
(84) Designated Contracting States:
CH DE FR GB IT LI NL

(30) Priority: 26.10.1994 JP 28592394

(62) Application number of the earlier application in accordance with Art. 76 EPC:
95935573.6 / 0738542

(71) Applicant: Yoshino Kogyosho Co., Ltd.
Tokyo 136 (JP)

(72) Inventors:
  • Saito, Tadao
    Tokyo 136 (JP)
  • Hayakawa, Shigeru
    Tokyo 136 (JP)

(74) Representative: Crouch, David John et al
Bromhead Johnson 19 Buckingham Street
London WC2 6EF
London WC2 6EF (GB)

   


(54) Trigger type liquid discharge device


(57) A trigger type liquid discharge device is provided with a valve structure designed to open only when the liquid inside the device shows a proper discharge pressure and arranged upstream relative to the discharge aperture of the nozzle head thereof and also with a flow path arranged in the cylinder of the pump unit of the device for returning any residual pressure in the liquid flow paths of the device after the end of a liquid discharging cycle. With such an arrangement, it can effectively prevent liquid from dripping out of the discharge tiperture of the residual pressure in the liquid flow paths in the inItial rind/or final stages of the liquid discharging operation.







Search report