(19)
(11) EP 0 787 457 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
13.08.1997 Bulletin 1997/33

(43) Date of publication A2:
06.08.1997 Bulletin 1997/32

(21) Application number: 97107839.9

(22) Date of filing: 19.03.1993
(51) International Patent Classification (IPC)6: A47K 5/12
(84) Designated Contracting States:
BE CH DE DK FR GB IT LI NL SE

(62) Application number of the earlier application in accordance with Art. 76 EPC:
93104544.7 / 0615717

(71) Applicant: INPACO CORPORATION
Nazareth, Pennsylvania 18064 (US)

(72) Inventors:
  • Christine, William C.
    Nazareth, Pennsylvania 18064 (US)
  • Roth, Scott A.
    Danielsville, Pennsylvania 18038 (US)

(74) Representative: Casalonga, Axel et al
BUREAU D.A. CASALONGA - JOSSE Morassistrasse 8
80469 München
80469 München (DE)

 
Remarks:
This application was filed on 14-05-1997 as a divisional application to the application mentioned under INID code 62.
 


(54) Liquid dispensing system


(57) A liquid dispensing system providing a housing holding a liquid filled pouch (48) inside, the housing pivotably supporting an actuating arm which is thrust against the pouch by a push button extending outside the housing, the actuating arm having an actuator (88) to compress an upper section of a tubular peristaltic pump section (70) of the pouch for squeezing out an incremental amount of liquid. The tubular peristaltic pumping section provides V-shaped notches arranged on lateral sides of the top section and the bottom section for ease of closure by flattening and other advantages. A check valve (106) having lever arms to resiliently stretch flat a discharge nozzle section at the lower end of the peristaltic pumping tube prevents dripping during non-use. A check valve actuator (90) is provided on the actuating arm to engage with the check valve lever arms to open the discharge nozzle during actuation and a short time thereafter to create a suck-back to remove any drips.






Search report