Dispensing – Plural sources – compartment – containers and/or spaced jacket – With discharge assistant for each source
Patent
1993-12-06
1995-05-09
Huson, Gregory L.
Dispensing
Plural sources, compartment, containers and/or spaced jacket
With discharge assistant for each source
222459, 222567, B67D 552
Patent
active
054132533
ABSTRACT:
A static mixer for attachment to a cartridge having at least two chambers containing different materials. The static mixer includes an outer sleeve rotatably connected with a center plug. The center plug being positioned inside a collar of the outer sleeve and providing a flow path through the collar to a mixer tube containing a mixer element. The center plug includes hollow male prongs at its connecting end for engagement Within outlets in the cartridge leading to the chambers. The outer sleeve having tabs on the outside of the collar for engagement with locking arms on a discharge end of the cartridge when the hollow male prongs on the center plug are placed within the outlets of the cartridge and the outer sleeve is rotated. Prior to use, a closure cap is positioned above the outlets in the cartridge. The closure cap includes passages and a reservoir whereby material within the cartridge may seep through the passages in the closure cap and be collected in the reservoir when parallelizing the pistons within the chambers of the cartridge. This accounts for uneven amounts of material loaded into the chambers upon manufacture. Upon completing an initial use of the cartridge, the static mixer is left attached to the cartridge until the cartridge is needed again. At that time, the static mixer is removed and a new static mixer is connected. The old static mixer, thus, acts as a temporary cap for the cartridge after each use.
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Coltene / Whaledent Inc.
Huson Gregory L.
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