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Mixpac Systems Ag

Richard J Wilson

Wilhelm A Keller

Christopher A Aquila

A bayonet attachment on a cartridge for attaching a mixer or accessory to a multiple component cartridge is formed as a ring-shaped bayonet socket with two internal recesses and two diametrically opposed cutouts forming one bayonet coupling part, whereas the bayonet attachment of the mixer or accessory comprises two bayonet lugs corresponding to the cutouts. In a preferred embodiment, the respective inlets of the mixer housing or the outlets of the cartridge have different sizes or shapes to provide coded alignment between the cartridge and the mixer.

Bayonet fastening device for the attachment of an accessory to a multiple component cartridge or dispensing device

The bayonet attachment on the cartridge for attaching a mixer or accessory to a multiple component cartridge is formed as a ring-shaped bayonet socket with two internal recesses and two diametrically opposed cutouts forming one bayonet coupling part means, whereas the bayonet attachment of the mixer or accessory comprises two bayonet lugs corresponding to the cutouts. In a preferred embodiment the lugs and cutouts are of different widths for the coded alignment of the mixer or accessory to the cartridge in one predetermined position only.

Bayonet fastening device for the attachment of an accessory to a

The mixer of the mixer-cartridge assembly comprises a housing, an inlet section having an individual inlet for each outlet of the cartridge and a mixer element group. The mixer inlet section comprising a separating element and the mixer element group are arranged thus, that while sealingly connecting the mixer to the cartridge, the inlets of the mixer remain aligned with the corresponding and matching outlets of the cartridge as well as with the separating element and with the dividing element of the mixer element group for optimizing the mixing of the components. For mixer attachment, the mixer housing comprises bayonet lugs cooperating with bayonet prongs on the cartridge, whereby the housing is rotated while the mixer inlet section, separating element and element group do not rotate in regard to the cartridge outlets, thus avoiding cross-contamination of the components at the cartridge/mixer interface and assuring continued separation well into the mixer up to the first dividing element.

Mixer and multiple component dispensing device assembly and method for

The device for the continuous monitoring of the correct proportioning and mixing of at least two fluids comprises a static or dynamic mixing device ending in a nozzle, wherein within the nozzle, the cross-sectional area of the stream or flow after the last mixing element of the static mixing device or at the end of the dynamic mixing device, as seen in the direction of flow, is substantially reduced compared to the cross-sectional area of the mixing part of the mixing device. This reduction is realized either by an internal volume displacing means or by reducing the diameter of the nozzle after the last mixing element of the static mixing device or at the end of the dynamic mixing device, and the nozzle being at a maximum transparency at the point of scanning. Such devices allow a more accurate monitoring since the greatest possible part of the stream of the mixed material can be more easily viewed or sensed.

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Andover, MA, United States of America

Richard J Wilson