US3209897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor structure
Assignee: John Burton Machine Corp
•
Filing: 1961-12-12
•
Granted: 1965-10-05
•
Expires: 1981-12-12
Abstract
No abstract record available.
Inventors
- 👤 Harold B Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:59
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/30; B65G17/32; B65G17/34; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
CONVEYOR CHAIN CONSTRUCTION COMPRISING: A PAIR OF SEPARABLE PLATFORM SECTIONS ARRANGED TOGETHED TO FORM A SINGLE ARTICLE SUPPORTING PLATFORM, EACH OF SAID PAIR OF SECTIONS INCLUDING A VERTICALLY DISPOSED FLANGE WITH THE FLANGES OF EACH PAIR IN ABUTMENT AT THE VERTICAL CENTRAL PLANE OF SAID PLATFORM, CORRESPONDING RECESSES IN SAID FLANGES FOR RECEIVING CHAIN LINKS THEREIN FOR CONNECTING SAID PLATFORM WITH ADJACENT PLATFORMS, SAID RECESSES BEING RESTRICTED IN SIZE ADJACENT THE LOWER EDGES OF SAID FLANGES TO PERMIT THE PASSAGE THEREIN OF ONE CHAIN BAR ONLY AND ENLARGED AT A POINT UPWARDLY FROM SAID LOWER EDGE TO ACCOMMODATE THE TWO CHAIN BARS OF ADJACENT LINKS, THE RESTRICTED PORTIONS OF THE OPENINGS OF SAID ABUTTED FLANGES BEING RELATIVELY OFFSET WHEN THE ENGLARGED PORTIONS OF SAID OPENINGS ARE IN REGISTRATION TO PREVENT DISCONNECTION OF SAID CHAIN FROM SAID SECTIONS WHEN SAID FLANGES ARE IN REGISTRATION.
Claim 2
Dependent Claim
143 words
CONVEYOR CHAIN CONSTRUCTION COMPRISING: A PAIR OF SEPARABLE PLATFORM SECTIONS ARRANGED TOGETHED TO FORM A SINGLE ARTICLE SUPPORTING PLATFORM, EACH OF SAID PAIR OF SECTIONS INCLUDING A VERTICALLY DISPOSED FLANGE WITH THE FLANGES OF EACH PAIR IN ABUTMENT AT THE VERTICAL CENTRAL PLANE OF SAID PLATFORM, CORRESPONDING RECESSES IN SAID FLANGES FOR RECEIVING CHAIN LINKS THEREIN FOR CONNECTING SAID PLATFORM WITH ADJACENT PLATFORMS, SAID RECESSES BEING RESTRICTED IN SIZE ADJACENT THE LOWER EDGES OF SAID FLANGES TO PERMIT THE PASSAGE THEREIN OF ONE CHAIN BAR ONLY AND ENLARGED AT A POINT UPWARDLY FROM SAID LOWER EDGE TO ACCOMMODATE THE TWO CHAIN BARS OF ADJACENT LINKS, THE RESTRICTED PORTIONS OF THE OPENINGS OF SAID ABUTTED FLANGES BEING RELATIVELY OFFSET WHEN THE ENGLARGED PORTIONS OF SAID OPENINGS ARE IN REGISTRATION TO PREVENT DISCONNECTION OF SAID CHAIN FROM SAID SECTIONS WHEN SAID FLANGES ARE IN REGISTRATION.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |