US3128014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable calibration scale for measuring bulk materials
Assignee: Barber Greene Co
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Filing: 1961-10-02
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Granted: 1964-04-07
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Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 Turner John Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:56
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1059; E01C19/1068; E01C19/1072; B; B28; B28C; B28C7/00; B28C7/04; B28C7/0454; B28C7/0472; G; G01; G01G; G01G19/00; G01G19/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
FOR USE WITH AN ASPHALT PLANT, AN AGGREGATE BIN WITH AN ADJUSTABLE GATE FOR CONTROLLING THE AMOUNT OF AGGREGATE DISCHARGE FROM THE BIN, A CALIBRATION DEVICE FOR USE IN CONNECTION WITH SAID GATE AND COMPRISING A FIRST MEASURE ELEMENT, A VARIABLE ELEMENT OF MEASUREMENT JUXTAPOSED TO AND ALONG THE LENGTH OF SAID FIRST MEASURE ELEMENT COMPRISING A COIL SPRING HAVING CONVOLUTIONS THEREOF ARRANGED INTO PREDETERMINED SEGMENTS EACH REPRESENTATIVE OF A GIVEN AMOUNT OF AGGREGATE FOR A GIVEN UNIT OF MEASUREMENT ON THE FIRST MEASURE ELEMENT, A SERIES OF ADJUSTABLE INDICATING ELEMENTS SECURABLE ALONG THE LENGTH OF SAID ELEMENTS FOR HOLDING SAID CONVOLUTIONS AT SPACED INTERVALS ON THE FIRST MEASURE ELEMENT, AND AN INDICATOR EXTENDING CROSSWISE OF SAID ELEMENTS AND MOVABLE IN RESPONSE TO VARIATIONS IN THE OPENING OF THE BIN GATE.
Claim 2
Dependent Claim
131 words
FOR USE WITH AN ASPHALT PLANT, AN AGGREGATE BIN WITH AN ADJUSTABLE GATE FOR CONTROLLING THE AMOUNT OF AGGREGATE DISCHARGE FROM THE BIN, A CALIBRATION DEVICE FOR USE IN CONNECTION WITH SAID GATE AND COMPRISING A FIRST MEASURE ELEMENT, A VARIABLE ELEMENT OF MEASUREMENT JUXTAPOSED TO AND ALONG THE LENGTH OF SAID FIRST MEASURE ELEMENT COMPRISING A COIL SPRING HAVING CONVOLUTIONS THEREOF ARRANGED INTO PREDETERMINED SEGMENTS EACH REPRESENTATIVE OF A GIVEN AMOUNT OF AGGREGATE FOR A GIVEN UNIT OF MEASUREMENT ON THE FIRST MEASURE ELEMENT, A SERIES OF ADJUSTABLE INDICATING ELEMENTS SECURABLE ALONG THE LENGTH OF SAID ELEMENTS FOR HOLDING SAID CONVOLUTIONS AT SPACED INTERVALS ON THE FIRST MEASURE ELEMENT, AND AN INDICATOR EXTENDING CROSSWISE OF SAID ELEMENTS AND MOVABLE IN RESPONSE TO VARIATIONS IN THE OPENING OF THE BIN GATE.
References Cited (Backward Citations)
US2883958A
Cited
US851241A
Cited
US1422925A
Cited
US2526921A
Cited
US2526081A
Cited
US2893600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |