B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 47/34 (2006.01) B65D 83/76 (2006.01) F04B 43/067 (2006.01) G01F 11/04 (2006.01)
Patent
CA 2282823
The present invention relates to a pump device for pumping liquid foodstuff, e.g. ketchup, mustard, sauce, dressing or similar, wherein the pump device (1) includes a pump housing (7), an inlet (5), an outlet (6), a pump body (12) and at least one pump means (21), wherein the pump body (12) has an elastic member (13) which by means of the pump means (21) can be stretched for imparting pump movements thereon for pumping foodstuff (2) out of the pump housing (7) through the outlet (6), and wherein the elastic member (13) of the pump body (12) is provided to perform, through contraction, suction movements for sucking foodstuff (2) into the pump housing (7) through the inlet (5). The elastic member (13) of the pump body (12) is provided in a prestressed or preloaded shape (FF) relative to a normal shape (NF). The elastic member (13) can be stretched from said prestressed or preloaded shape (FF) to a stretched shape (UF) for imparting pump movements onto said elastic member (13). Furthermore, the elastic member (13) is provided after having performed said pump movements, to contract from said stretched shape (UF) into its prestressed or preloaded shape (FF) for performing suction movements.
Asept International Ab
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
LandOfFree
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