US3153459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical systems
Assignee: Howe Richardson Scale Co Inc
•
Filing: 1961-05-15
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Granted: 1964-10-20
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Expires: 1981-05-15
Abstract
No abstract record available.
Inventors
- 👤 Clayton E Smith
- 👤 Alan G Kendall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:17
CPC Classifications
G; G01; G01G; G01G19/00; G01G19/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
WEIGHING APPARATUS FOR OBTAINING THE INDIVIDUAL SUMMATED WEIGHTS OF A PLURALITY OF MATERIALS COMPRISING A WEIGHING SYSTEM HAVING A MEMBER THAT IS DISPLACED PROPORTIONATELY TO A QUANTITY OF MATERIAL BEING WEIGHED, A PLURALITY OF SEPARATE INDICATORS ONE CORRESPONDING TO EACH OF SAID MATERIALS, AN ELECTRICAL MOTOR, MEANS FOR SELECTIVELY CONNECTING ANY ONE OF SAID INDICATORS TO BE DRIVEN FROM SAID MOTOR DURING THE ENTIRE PERIOD THAT THE CORRESPONDING MATERIAL IS BEING WEIGHED, ALL OF SAID OTHER INDICATORS BEING DISCONNECTED FROM DRIVE BY SAID MOTOR DURING SAID PERIOD, MEANS RESPONSIVE CONTINUOUSLY TO DISPLACEMENT OF SAID MEMBER PRODUCING A PROPORTIONAL ELECTRICAL SIGNAL AND APPLYING SAID SIGNAL DURING SAID ENTIRE PERIOD TO ACTUATE SAID MOTOR FOR DRIVING THE INDICATOR CONNECTED THERETO, AND MEANS DRIVEN BY THE MOTOR DURING SAID PERIOD FOR PRODUCING AND APPLYING A VARYING COUNTERACTING SIGNAL SUFFICIENT TO ARREST SAID MOTOR WHEREBY THE
Claim 2
Dependent Claim
142 words
WEIGHING APPARATUS FOR OBTAINING THE INDIVIDUAL SUMMATED WEIGHTS OF A PLURALITY OF MATERIALS COMPRISING A WEIGHING SYSTEM HAVING A MEMBER THAT IS DISPLACED PROPORTIONATELY TO A QUANTITY OF MATERIAL BEING WEIGHED, A PLURALITY OF SEPARATE INDICATORS ONE CORRESPONDING TO EACH OF SAID MATERIALS, AN ELECTRICAL MOTOR, MEANS FOR SELECTIVELY CONNECTING ANY ONE OF SAID INDICATORS TO BE DRIVEN FROM SAID MOTOR DURING THE ENTIRE PERIOD THAT THE CORRESPONDING MATERIAL IS BEING WEIGHED, ALL OF SAID OTHER INDICATORS BEING DISCONNECTED FROM DRIVE BY SAID MOTOR DURING SAID PERIOD, MEANS RESPONSIVE CONTINUOUSLY TO DISPLACEMENT OF SAID MEMBER PRODUCING A PROPORTIONAL ELECTRICAL SIGNAL AND APPLYING SAID SIGNAL DURING SAID ENTIRE PERIOD TO ACTUATE SAID MOTOR FOR DRIVING THE INDICATOR CONNECTED THERETO, AND MEANS DRIVEN BY THE MOTOR DURING SAID PERIOD FOR PRODUCING AND APPLYING A VARYING COUNTERACTING SIGNAL SUFFICIENT TO ARREST SAID MOTOR WHEREBY THE
References Cited (Backward Citations)
US2055730A
Cited
US2420539A
Cited
US2610052A
Cited
US2871005A
Cited
US2932501A
Cited
US2873107A
Cited
US2918270A
Cited
US2990116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-20 | 1968-04-20 | 1968-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-20 | 1972-04-20 | 1972-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-20 | 1976-04-20 | 1976-10-20 | $7700.00 | Window Closed / Lapsed |