US3224557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article spacing system for conveyors
Assignee: Aerojet Rocketdyne Inc
•
Filing: 1963-06-19
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Granted: 1965-12-21
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Expires: 1983-06-19
Abstract
No abstract record available.
Inventors
- 👤 David W Beecher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:04
CPC Classifications
B; B07; B07C; B07C3/00; B07C3/02; B07C3/08; B07C3/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN A SYSTEM FOR EFFECTING A PREDETERMINED SPACING BETWEEN ARTICLES, A PAIR OF TANDEM BELTS OPERATING AT A PREDETERMINED SPEED RATIO AND COMPRISING AN ENTRANCE BELT AND A DISCHARGED BELT WHEREIN SAID ENTRANCE BELT RUNS AT A SLOWER SPEED THAN SAID DISCHARGE BELT, MEANS FOR EFFECTING SIMULTANEOUS STARTING AND STOPPING OF SAID BELTS COMPRISING ARTICLE SENSING MEANS DISPOSED AT THE DISCHARGE END OF SAID DISCHARGE BELT, AND CICUITRY MEANS FOR STOPPING SAID BELTS RESPONSIVE TO SPACING BETWEEN ARTICLES AS SEQUENTIALLY SENSED BY SAID SENSING MEANS WHEN SUCCESSIVE ARTICLES ARE SPACED LESS THAN A PREDETERMINED DISTANCE APART WHEN THE DOWNSTREAM ARTICLE IS LEAVING THE DISCHARGE BELT, SAID CIRCUITRY MEANS BEING OPERATIVE TO START SAID BELTS A PREDETERMINED TIME THEREAFTER.
Claim 2
Dependent Claim
118 words
IN A SYSTEM FOR EFFECTING A PREDETERMINED SPACING BETWEEN ARTICLES, A PAIR OF TANDEM BELTS OPERATING AT A PREDETERMINED SPEED RATIO AND COMPRISING AN ENTRANCE BELT AND A DISCHARGED BELT WHEREIN SAID ENTRANCE BELT RUNS AT A SLOWER SPEED THAN SAID DISCHARGE BELT, MEANS FOR EFFECTING SIMULTANEOUS STARTING AND STOPPING OF SAID BELTS COMPRISING ARTICLE SENSING MEANS DISPOSED AT THE DISCHARGE END OF SAID DISCHARGE BELT, AND CICUITRY MEANS FOR STOPPING SAID BELTS RESPONSIVE TO SPACING BETWEEN ARTICLES AS SEQUENTIALLY SENSED BY SAID SENSING MEANS WHEN SUCCESSIVE ARTICLES ARE SPACED LESS THAN A PREDETERMINED DISTANCE APART WHEN THE DOWNSTREAM ARTICLE IS LEAVING THE DISCHARGE BELT, SAID CIRCUITRY MEANS BEING OPERATIVE TO START SAID BELTS A PREDETERMINED TIME THEREAFTER.
References Cited (Backward Citations)
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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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |