US3081861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accurate bag counter
Assignee: Union Carbide Corp
•
Filing: 1960-07-08
•
Granted: 1963-03-19
•
Expires: 1980-07-08
Abstract
No abstract record available.
Inventors
- 👤 Alvin H Plach
- 👤 Alvin E Ericson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:06
CPC Classifications
G; G06; G06M; G06M7/00; G06M7/08; G06M7/10; G06M9/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
187 words
IN COMBINATION WITH A BAG STACKING ASSEMBLY HAVING A MEMBER FOR GRIPPING A THERMOPLASTIC BAG AT ONE STATION AND TRANSPORTING IT TO AND DEPOSITING AT A STACKING STATION, MEANS FOR COUNTING COMPRISING AN ELECTRICAL CIRCUIT ASSOCIATED WITH SAID GRIPPER MEMBER, SAID CIRCUIT HAVING A RESISTANCE GREATER THAN A PREDETERMINED RESISTANCE WHEN A BAG IS GRIPPED BY SAID GRIPPING MEMBER AT THE STACKING STATION AND A DIFFERENT RESISTANCE WHEN A BAG IS NOT GRIPPED BY SAID GRIPPING MEMBER AT THE STACKING STATION, A COUNTER, RESISTANCE SENSITIVE MEANS IN CIRCUIT RELATION WITH SAID ELECTRICAL CIRCUIT AND ADAPTED TO CAUSE SAID COUNTER TO REGISTER A COUNT WHEN SAID ELECTRICAL CIRCUIT HAS A RESISTANCE GREATER THAN SAID PREDETERMINED RESISTANCE, MEANS ASSOCIATED WITH SAID BAG STACKING ASSEMBLY FOR CONNECTING SAID COUNTER IN CIRCUIT RELATION WITH SAID RESISTANCE SENSITIVE MEANS WHEN THE GRIPPER MEMBER IS AT THE STACKING STATION, MEANS FOR TRANSPORTING A PILE OF BAGS FROM THE STACKING STATION TO A COLLECTION STATION, AND MEANS FOR CONNECTING THE COUNTER IN CIRCUIT RELATION WITH SAID TRANSPORTING MEANS, SAID COUNTER ADAPTED TO ACTUATE SAID MOVING MEANS WHEN A PREDETERMINED COUNT OF BAGS IS REACHED.
References Cited (Backward Citations)
US2731204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |