← Back to Patent Explorer
US3553897A Expired / Lapsed US ⏱️ 0.0 years remaining

Batch processing apparatus

Assignee: Individual
•
Filing: 1968-01-25
•
Granted: 1971-01-12
•
Expires: 1988-01-25
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A DRUM ROTATABLE ABOUT AN AXIS THROUGH ITS ENDS HAS OPENINGS IN ITS SIDE WALL WHICH DEFINE A PASSAGEWAY. AN INNER CONTAINER FITS WITHIN THIS PASSAGEWAY SUCH THAT ITS END WALLS ARE FLUSH WITH THE SIDE WALLS OF THE DRUM. THE INNER CONTAINER OPENS TO THE INTERIOR OF THE DRUM SO THAT PARTS TO BE PROCESSED ARE SPILLED OUT WHEN THE ASSEMBLY IS ROTATED. THE INTERIOR OF THE DRUM IS FIRMED SO ALL OF THESE PARTS SPILL BACK INTO THE INNER CONTAINER WHEN IT IS ROTATED TO THE LOWER POSITION OF THE DRUM. A BLAST OF PROCESSING MATERIAL IS ADMITTED IN THE REGION OF THE AXIS OF ROTATION OF THE DRUM AND THE END WALLS OF THE DRUM ARE PERFORATED SO THAT THE PROCESSING MATERIAL MAY BE EXPELLED FROM THE DRUM. A HOUSING ENCLOSING THE END WALLS OF THE DRUM COLLECTS THE PROCESSING MATERIAL WHICH IS THEN RECIRCULATED BACK THROUGH THE DRUM. THE DRUM IS COUPLED WITH A CONTROL SYSTEM WHICH INSURES THAT THE DRUM STOPS WITH THE INNER CONTAINER POSITIONED HORIZONTALLY BELOW THE AXIS OF ROTATION.

Inventors

  • 👤 Vincent S Bobkowski

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 10:06
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/18; B24C3/26

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-01-11 1974-07-13 1975-01-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-11 1978-07-13 1979-01-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-11 1982-07-13 1983-01-12 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag