Patent ID: 11878311
Assignee: PNEUMATIC SCALE CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC B  C | IPC B

Claim 9:
10. The apparatus according to claim 1
wherein the single use structure further includes:
a vertically extending concentrate discharge tube,
wherein during rotation of the bowl, the upper disc shape portion and the outer wall rotate relative to the concentrate discharge tube,

a concentrate centripetal pump, wherein the concentrate centripetal pump is
axially aligned with the core,
disposed coaxially about the feed tube,
vertically positioned above the centrate centripetal pump,
in fluid communication with the concentrate discharge tube, and
positioned in a concentrate pump chamber,
wherein the concentrate pump chamber is in fluid communication with the separation chamber,

wherein during rotation of the bowl the upper disc shape portion and the outer wall rotate relative to the concentrate centripetal pump, and
wherein the concentrate centripetal pump chamber is bounded vertically by
a lower circular axially centered concentrate centripetal pump chamber surface,
wherein the lower concentrate centripetal pump chamber surface includes an axially centered lower concentrate centripetal pump chamber opening,
wherein the feed tube and the vertically extending centrate discharge tube extend through the lower concentrate centripetal pump chamber opening,
an upper axially centered circular concentrate centripetal pump chamber surface,
wherein the upper concentrate centripetal pump chamber surface includes an axially centered upper concentrate centripetal pump chamber opening,
wherein the feed tube, the vertically extending centrate discharge tube and the vertically extending concentrate discharge tube extend through the upper concentrate centripetal pump chamber opening,

wherein the concentrate centripetal pump includes a substantially annular concentrate pump opening, wherein concentrate from the concentrate pump chamber enters the concentrate centripetal pump through the substantially annular concentrate pump opening,
wherein the substantially annular concentrate pump opening is radially disposed from the axis a concentrate pump opening distance,
wherein the lower concentrate centripetal pump chamber surface includes
a plurality of angularly spaced, radially and upward extending lower concentrate chamber vanes, wherein the lower concentrate chamber vanes extend radially outward beginning from the lower concentrate centripetal pump chamber opening a lower concentrate vane distance, wherein the lower concentrate vane distance is less than the concentrate pump opening distance,

wherein the upper concentrate centripetal pump chamber surface includes
a plurality of angularly spaced, radially and downward extending upper concentrate chamber vanes,
wherein the upper concentrate chamber vanes extend radially outward beginning from the upper concentrate centripetal pump chamber opening an upper concentrate vane distance, wherein the upper concentrate vane distance is less than the concentrate pump opening distance.