US3263971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic sampling means for asphalt plants
Assignee: Barber Greene Co
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Filing: 1962-03-21
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Granted: 1966-08-02
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Expires: 1982-03-21
Abstract
No abstract record available.
Inventors
- 👤 Robert E Farnham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:24
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1059; E01C19/1068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN A BITUMINOUS MIXING PLANT OF THE CONTINUOUS TYPE INCLUDING A PUG MILL AND AN AGGREGATE SUPPLY SYSTEM FOR SUPPLYING AGGREGATE TO THE PUG MILL AND IN ASPHALT SUPPLY SYSTEM FOR SUPPLYING ASPHALT TO THE PUG MILL AS WELL AS A REFERENCE SHAFT INTERLOCKED WITH BOTH SYSTEMS, THE IMPROVEMENT OF MEANS CONNECTED WITH THE AGGREGATE AND ASPHALT SUPPLY SYSTEMS AND WITH THE REFERENCE SHAFT FOR SELECTIVELY DIVERTING ASPHALT AND AGGREGATE FLOW FROM THE PUG MILL TO SAMPLE HOPPERS FOR A SELECTED NUMBER OF REVOLUTIONS OF THE REFERENCE SHAFT SO THAT THE NUM-
Claim 2
Dependent Claim
92 words
IN A BITUMINOUS MIXING PLANT OF THE CONTINUOUS TYPE INCLUDING A PUG MILL AND AN AGGREGATE SUPPLY SYSTEM FOR SUPPLYING AGGREGATE TO THE PUG MILL AND IN ASPHALT SUPPLY SYSTEM FOR SUPPLYING ASPHALT TO THE PUG MILL AS WELL AS A REFERENCE SHAFT INTERLOCKED WITH BOTH SYSTEMS, THE IMPROVEMENT OF MEANS CONNECTED WITH THE AGGREGATE AND ASPHALT SUPPLY SYSTEMS AND WITH THE REFERENCE SHAFT FOR SELECTIVELY DIVERTING ASPHALT AND AGGREGATE FLOW FROM THE PUG MILL TO SAMPLE HOPPERS FOR A SELECTED NUMBER OF REVOLUTIONS OF THE REFERENCE SHAFT SO THAT THE NUM-
References Cited (Backward Citations)
FR636397A
Cited
CA469275A
Cited
US2344228A
Cited
US2727669A
Cited
US2756104A
Cited
US2787450A
Cited
US2893600A
Cited
US2893601A
Cited
US2893602A
Cited
US2873955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |