Dispensing – Processes of dispensing
Patent
1989-07-06
1991-01-22
Huppert, Michael S.
Dispensing
Processes of dispensing
222 82, 222137, 222327, B67D 500
Patent
active
049864432
ABSTRACT:
The invention provides a method and an apparatus for discharging a substance contained in a cartridge or the like from the cartridge. The substance is prevented from flowing out by a sealing member provided at the outlet of the cartridge. To open the cartridge, a relative displacement between the cartridge and a coupling member mounted on the connection piece of the cartridge is effected to thereby open the sealing member by way of a cutting member provided in the coupling member. The sealing member is opened at least to such an extent that it releases the flow path of the substance contained in the cartridge fully or partially due to the pressure exerted on the sealing member by the substance contained in the cartridge during an initial phase of the discharge operation.
REFERENCES:
patent: 3130872 (1964-04-01), Myers et al.
patent: 3504826 (1970-04-01), Carlton
patent: 3527389 (1970-09-01), Farmer
patent: 3570719 (1971-03-01), Schiff
patent: 4067479 (1978-01-01), Moline
patent: 4432765 (1984-02-01), Oscarsson
patent: 4624393 (1986-11-01), Lopez
patent: 4690306 (1987-09-01), Staheli
patent: 4741155 (1988-05-01), McCarty
Saur Wolfgang
Staemmele Siegfried
Taschke Franz
Tonolla Robert
Gurit-Essex AG
Huppert Michael S.
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