US3606954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for stacking equipment
Assignee: Hewitt Robins Inc
•
Filing: 1969-11-24
•
Granted: 1971-09-21
•
Expires: 1989-11-24
Abstract
Abstract A NOVEL BED BLENDING SYSTEM IS DISCLOSED WHICH PRODUCES UNIFORM THICKNESS LAYERS IN THE BED. A CONVEYOR FEEDS A CONVENTIONAL TRAVELING STACKING BOOM WHICH DEPOSITS MATERIAL ON THE BED AS IT TRAVELS. THE BED IS FORMED, LAYER BY LAYER, ON SUCCESSIVE PASSES OF THE STACKER. THE CONTROL SYSTEM MONITORS THE FEED RATE AND CONTROLS THE STACKER SPEED TO PROVIDE FOR CONTROLLED LAYER THICKNESS IN THE BED AS CONVEYOR SPEED AND MASS FEED VARY. THE CONTROL SYSTEM IS SO DESIGNED THAT A LAYER OF THE BED IS UNIFORM ALONG THE BED BUT IS CAPABLE OF PROVIDING VARIATIONS IN BED LAYER THICKNESS FROM ONE LAYER TO THE NEXT.
Inventors
- 👤 Gerald C Mayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:32
CPC Classifications
G; G05; G05D; G05D5/00; G05D5/02; G05D5/03; B; B65; B65G; B65G69/00; B65G69/10
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |