Patent US3140216A successfully refreshed from Google Patents.
US3140216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precision tire building drum
Assignee: Akron Standard Mold Co
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Filing: 1962-04-18
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Granted: 1964-07-07
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Expires: 1982-04-18
Abstract
No abstract record available.
Inventors
- 👤 Richard L Shilts
- 👤 Sr William H Ruttenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:54
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A TIRE BUILDING DRUM COMPRISING, A ROTATABLE SHAFT, A PLURALITY OF DRUM SEGMENTS SPACED FROM SAID SHAFT, CAM FOLLOWER MEANS DEPENDING FROM EACH OF SAID SEGMENTS, CAM MEANS ATTACHED TO AND ADAPTED FOR AXIAL MOVEMENT RELATIVE TO SAID SHAFT, SAID CAM MEANS HAVING A FIRST AND SECOND SET OF ALTERNATELY SPACED CAM TRACKS, THE CAM TRACKS OF SAID FIRST SET HAVING PORTIONS OF DIFFERENT DIMENSIONAL LENGTH RELATIVE TO CORRESPONDING PORTIONS ON THE CAM TRACKS OF SAID SECOND SET FOR MOVING CERTAIN OF SAID SEGMENTS RADIALLY IN ADVANCE OF OTHERS OF SAID SEGMENTS UPON COLLAPSING THE DRUM, AND FOR MOVING SAID OTHER OF SAID SEGMENTS RADIALLY IN ADVANCE OF SAID FIRST MENTIONED SEGMENTS UPON EXPANDING OF THE DRUM.
Claim 2
Dependent Claim
117 words
A TIRE BUILDING DRUM COMPRISING, A ROTATABLE SHAFT, A PLURALITY OF DRUM SEGMENTS SPACED FROM SAID SHAFT, CAM FOLLOWER MEANS DEPENDING FROM EACH OF SAID SEGMENTS, CAM MEANS ATTACHED TO AND ADAPTED FOR AXIAL MOVEMENT RELATIVE TO SAID SHAFT, SAID CAM MEANS HAVING A FIRST AND SECOND SET OF ALTERNATELY SPACED CAM TRACKS, THE CAM TRACKS OF SAID FIRST SET HAVING PORTIONS OF DIFFERENT DIMENSIONAL LENGTH RELATIVE TO CORRESPONDING PORTIONS ON THE CAM TRACKS OF SAID SECOND SET FOR MOVING CERTAIN OF SAID SEGMENTS RADIALLY IN ADVANCE OF OTHERS OF SAID SEGMENTS UPON COLLAPSING THE DRUM, AND FOR MOVING SAID OTHER OF SAID SEGMENTS RADIALLY IN ADVANCE OF SAID FIRST MENTIONED SEGMENTS UPON EXPANDING OF THE DRUM.
References Cited (Backward Citations)
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US2367831A
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US2565071A
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US2655977A
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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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |