Dispensing – With lock or fastening seal – Inhibiting actuation of discharge assistant
Patent
1995-06-28
1998-08-04
Huson, Gregory L.
Dispensing
With lock or fastening seal
Inhibiting actuation of discharge assistant
222391, B67B 500
Patent
active
057881235
ABSTRACT:
A dispenser for paste compositions is formed of a housing having an inside wall formed about a longitudinal axis for containing said compositions and being open at one end. A piston is arranged to move axially within the housing to urge the compositions towards the open end. A locking mechanism supports the piston within the housing against the inside wall and prevents the piston from moving in a direction opposite to a dispensing direction. A head part is arranged at the open end of the housing for displacement of a portion of the composition to be dispensed. A push button is arranged laterally next to the head part for pressing against and deflecting at least a part of the head part The head part has a centrally arranged closing valve formed with a valve body, the valve being opened and closed upon the activation of the push button. A connecting rod passes axially through the housing and is held by a holder positioned in a guide cylinder of the valve body with very little axial free play.
REFERENCES:
patent: 4836415 (1989-06-01), Grussmark
patent: 5044523 (1991-09-01), McNab
patent: 5052592 (1991-10-01), Wilken et al.
patent: 5158206 (1992-10-01), Kobayashi et al.
Hackmann Ludger
Hahl Michael
Bramlage GmbH
Huson Gregory L.
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