Fluent material handling – with receiver or receiver coacting mea – With material treatment – Compacting
Reexamination Certificate
2007-08-07
2007-08-07
Douglas, Steven O. (Department: 3771)
Fluent material handling, with receiver or receiver coacting mea
With material treatment
Compacting
C141S067000, C425S078000, C425S258000, C425S425000
Reexamination Certificate
active
10918941
ABSTRACT:
A powder feed apparatus and method for increasing the rate of flow of powder fed through a powder feed system to a powder press. The apparatus includes a housing having a powder feed chamber, with a powder ingress opening and a powder egress opening, and at least one vibrator. The powder feed chamber is dimensioned to transmit a vibrational force from the vibrator to powder in it such that the velocity of the powder through the powder egress opening is increased over the velocity of the powder through the powder egress opening in the absence of the vibrational force (i.e. using only gravity feed).
REFERENCES:
patent: 4653957 (1987-03-01), Smith et al.
patent: 4813818 (1989-03-01), Sanzone
patent: 6241935 (2001-06-01), Beane et al.
patent: 6736626 (2004-05-01), Lienau
Devine, Millimet & Branch
Douglas Steven O.
Remus Paul C.
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