Applicator wheel for filling cavities with metered amounts...

Fluent material handling – with receiver or receiver coacting mea – Drip prevention by flow reversing and/or overfill removal – Separate removal station

Reexamination Certificate

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C141S008000, C141S065000, C141S067000, C141S129000, C141S196000

Reexamination Certificate

active

07849889

ABSTRACT:
A machine and process function to fill cavities with metered amounts of particulate material. An applicator wheel includes a series of equally spaced apart peripheral pockets each having a perforated bottom wall, and a vacuum manifold inside the wheel includes a vacuum chamber for supplying vacuum to the perforated bottom walls of the pockets as the wheel rotates. Particulate material from a filling chamber of such material outside the wheel is withdrawn into the pockets by the vacuum chamber. A downstream vacuum relief on the vacuum manifold functions to discharge particulate material from the pockets into the cavities at a predetermined discharge location on the wheel. Adjustment structure is connected to rotatably adjust the position of the vacuum manifold within the applicator wheel to thereby advance or retard the discharge location depending upon the speed of the machine.

REFERENCES:
patent: 2540059 (1951-01-01), Stirn et al.
patent: 3312151 (1967-04-01), Molins
patent: 3570557 (1971-03-01), Molins
patent: 4214508 (1980-07-01), Washington
patent: 4425107 (1984-01-01), Hall
patent: 4509568 (1985-04-01), Kawaguchi et al.
patent: 5765607 (1998-06-01), Ansaloni
patent: 5875824 (1999-03-01), Atwell et al.
patent: 6267155 (2001-07-01), Parks et al.
patent: 6723033 (2004-04-01), Scott et al.
patent: 6805174 (2004-10-01), Smith et al.
patent: 2003/0034085 (2003-02-01), Spiers et al.

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