US3213993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roller conveyors
Assignee: WELDED AND ALLIED PRODUCTS Ltd
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Filing: 1963-09-03
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Granted: 1965-10-26
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Expires: 1983-09-03
Abstract
No abstract record available.
Inventors
- 👤 Long Peter Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:56
CPC Classifications
B; B65; B65G; B65G7/00; B65G7/02; B65G7/10; B60; B60P; B60P1/00; B60P1/64; B60P1/6418; B60P1/6427; B66; B66F; B66F3/00; B66F3/24; B66F3/25; B66F3/35
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
A ROLLE CONVEYOR COMPRISING AN ELONGATED REVERSIBLE ROLLER-CARRYING CHANNEL UNIT, SAID CHANNEL HAVING PARALLEL OUTWARDLY EXTENDING FLANGES TERMINATING IN PLANAR EDGES, ROLLERS JOURNALLED IN SAID FLANGES TRANSVERSELY THEREOF WITH PORTIONS THEREOF EXTENDING BEYOND THE PLANE OF THE EDGES OF THE FLANGES, A SECOND ELONGATED CHANNEL IN CONTACTING RELATION WITH SAID UNIT AND SUPPORTED THEREBY, AN ELONGATED HOLLOW MEMBER ADAPTED TO BE INFLATED WITH PRESSURE FLUID MOUNTED IN SAID LAST NAMED CHANNEL, A LOAD SUPPORTING BAR WITHIN SAID SECOND CHANNEL HAVING A FLANGED SIDE EDGES AND SUPPORTED BY SAID INFLATABLE MEMBER, AND SAID LAST NAMED CHANNEL HAVING INTURNED FLANGES OVERLYING THE FLANGED SIDE EDGES OF THE BAR AND LIMITING THE OUTWARD MOVEMENT THEREOF.
Claim 2
Dependent Claim
112 words
A ROLLE CONVEYOR COMPRISING AN ELONGATED REVERSIBLE ROLLER-CARRYING CHANNEL UNIT, SAID CHANNEL HAVING PARALLEL OUTWARDLY EXTENDING FLANGES TERMINATING IN PLANAR EDGES, ROLLERS JOURNALLED IN SAID FLANGES TRANSVERSELY THEREOF WITH PORTIONS THEREOF EXTENDING BEYOND THE PLANE OF THE EDGES OF THE FLANGES, A SECOND ELONGATED CHANNEL IN CONTACTING RELATION WITH SAID UNIT AND SUPPORTED THEREBY, AN ELONGATED HOLLOW MEMBER ADAPTED TO BE INFLATED WITH PRESSURE FLUID MOUNTED IN SAID LAST NAMED CHANNEL, A LOAD SUPPORTING BAR WITHIN SAID SECOND CHANNEL HAVING A FLANGED SIDE EDGES AND SUPPORTED BY SAID INFLATABLE MEMBER, AND SAID LAST NAMED CHANNEL HAVING INTURNED FLANGES OVERLYING THE FLANGED SIDE EDGES OF THE BAR AND LIMITING THE OUTWARD MOVEMENT THEREOF.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |