Dispensing – With cutter and/or punch – To form dispensing opening in container
Patent
1995-03-27
1996-04-23
Kashnikow, Andres
Dispensing
With cutter and/or punch
To form dispensing opening in container
222 83, 2223216, B67D 500
Patent
active
055095780
ABSTRACT:
A pump (1) has a tubular inlet portion (4) which is arranged to penetrate the mouth (27) of a container having a seal (29) in order to dispense liquid from the container. The pump has a body (2) connected to a housing (23) comprising holding means (25) which holds the container such that in a first position the inlet portion of the pump is external to the seal and in a second position the inlet portion extends through the seal into a reservoir (30) to allow liquid to be dispensed. In the second position, the inlet portion projects into the reservoir to an extent sufficient to displace a volume of liquid filling the inlet channel (6) of the pump and occupying the pump chamber (3). The pump is thereby rendered self priming by the initial movement between the first and second positions which at the same time disrupts the seal. The pump is particularly useful for the nasal administration of liquid sprays from an ampule having an elastomeric seal closure or a duck bill valve.
REFERENCES:
patent: 4265372 (1981-05-01), Wainberg
patent: 5328055 (1994-06-01), Battle
patent: 5341993 (1994-08-01), Haber et al.
patent: 5433343 (1995-07-01), Meshbers
Bespak plc
Derakshani Philippe
Kashnikow Andres
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