Patent US3611643A successfully refreshed from Google Patents.
US3611643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planing machine using rotatable abrasive drums
Assignee: Burgess Norton Manufacturing Co Inc
•
Filing: 1968-10-04
•
Granted: 1971-10-12
•
Expires: 1988-10-04
Abstract
Abstract A PLANING MEANS FOR PLANING WOOD, FIBRE OR COMPARABLE MATERIAL INCLUDING A ROTARY DRUM AND A METAL SLEEVE CARRYING TUNGSTEN CARBIDE GRIT. THE SLEEVE IS SHRUNK ON THE DRUM WHIC ACTS AS AN ARBOR TO SUPPORT AND ROTATE THE GRIT CARRYING SLEEVE. ONE OR MORE DRUMS AND GRIT CARRING SLEEVE ASSEMBLIES ARE MOUNTED IN A MACHINE AND ARE ROTATED IN CONTACT WITH WOOD OR EQUIVALENT MATERIAL WHICH IS TO BE PLANED AND IS GIVEN A SMOOTH SURFACE COMPARABLE TO THAT WHICH IS GIVEN BY A CONVENTIONAL ASSEMBLY WITH PLANAR BLADES. SUCH DRUMS MAY BE MOUNTED SOLELY ABOVE THE WORKPIECE OR ABOVE AND BELOW THE WORKPIECE.
Inventors
- 👤 William T Crane
- 👤 Kenneth L Landmark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:55
CPC Classifications
B; B24; B24D; B24D9/00; B24D9/04; B24B; B24B7/00; B24B7/10; B24B7/12
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |