US3172175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic supplying, mixing, moisture control and delivery of granular material
Assignee: Hartley Controls Corp
•
Filing: 1953-08-10
•
Granted: 1965-03-09
•
Expires: 1973-08-10
Abstract
No abstract record available.
Inventors
- 👤 Hartley Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:00
CPC Classifications
B; B22; B22C; B22C19/00; B22C19/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN A DEVICE OF THE CHARACTER DESCCRIBED, THE COMBINATION WITH A MIXER, OF A SAND BATCH HOPPER ARRANGED TO DISCHARGE INTO THE MIXER, A WATER MEASURING TANK ARRANGED TO DISCHARGE INTO THE MIXER, AND A BOND MEASURING DEVICE ARRANGED TO DISCHARGE INTO THE MIXER, SUPPLY MEANS FOR SUPPLYING SAND TO THE BATCH HOPPER, WATER TO THE TANK AND BOND TO THE BOND MEASURING DEVICE, VALVES CONTROLLING THE RESPECTIVE SUPPLY MEANS, OTHER VALVES CONTROLLING THE DISCHARGE FROM THE BATCH HOPPER AND THE TANK AND BOND MEASURING DEVICE INTO THE MIXER, A SEQUENCY CONTROLLER COMPRISING A MOTOR DRIVEN CAM SHAFT, AND CAM OPERATED MEANS FOR ACTUATING THE SEVERAL VALVES IN PROPER SEQUENCE FOR MEASURING SUCCESSIVE BATCHES OF MATERIAL FOR DELIVERY
Claim 2
Dependent Claim
118 words
IN A DEVICE OF THE CHARACTER DESCCRIBED, THE COMBINATION WITH A MIXER, OF A SAND BATCH HOPPER ARRANGED TO DISCHARGE INTO THE MIXER, A WATER MEASURING TANK ARRANGED TO DISCHARGE INTO THE MIXER, AND A BOND MEASURING DEVICE ARRANGED TO DISCHARGE INTO THE MIXER, SUPPLY MEANS FOR SUPPLYING SAND TO THE BATCH HOPPER, WATER TO THE TANK AND BOND TO THE BOND MEASURING DEVICE, VALVES CONTROLLING THE RESPECTIVE SUPPLY MEANS, OTHER VALVES CONTROLLING THE DISCHARGE FROM THE BATCH HOPPER AND THE TANK AND BOND MEASURING DEVICE INTO THE MIXER, A SEQUENCY CONTROLLER COMPRISING A MOTOR DRIVEN CAM SHAFT, AND CAM OPERATED MEANS FOR ACTUATING THE SEVERAL VALVES IN PROPER SEQUENCE FOR MEASURING SUCCESSIVE BATCHES OF MATERIAL FOR DELIVERY
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |