Patent US2603581A successfully refreshed from Google Patents.
US2603581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tire building drum
Assignee: Uniroyal Inc
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Filing: 1949-12-13
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Granted: 1952-07-15
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Expires: 1969-12-13
Abstract
No abstract record available.
Inventors
- 👤 Donald E Ericson
- 👤 Ernest E Kwierant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:22
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/24; B29D30/244; B29D30/248
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A TIRE BUILDING DRUM COMPRISING A HUB, A FIRST SET OF ARCUATE SEGMENTS, AND A SECOND SET OF ARCUATE SEGMENTS ALTERNATELY PLACED WITH RESPECT TO SAID FIRST SEGMENTS, SAID TWO SETS OF SEGMENTS DESCRIBING A CONTIGUOUS CIRCLE MEANS FOR COLLAPSING SAID DRUM INCLUDING AN AXIALLY MOVABLE ACTUATING MEANS MOUNTED AT SAID HUB, PIVOTAL LINKAGES CONNECTING THE FIRST SET OF SEGMENTS TO SAID ACTUATING MEANS FOR MOVING SAID FIRST SEGMENTS AXIALLY AND RADIALLY TOWARD SAID HUB, A MEMBER MOUNTED AT SAID HUB AXIALLY SLIDABLE WITH RESPECT TO SAID ACTUATING MEANS, PIVOTAL LINKAGES CONNECTING THE SAID ALTERNATELY PLACED SECOND SET OF SEGMENTS ONLY TO SAID SLIDABLE MEMBER, MEANS FOR MOVING SAID SLIDABLE MEMBER A DEFINITE DISTANCE TO SIMULTANEOUSLY MOVE SAID SECOND SEGMENTS AXIALLY DURING THE INITIAL PERIOD OF COLLAPSE, MEANS FOR ARRESTING AXIAL MOVEMENT OF SAID SECOND SEGMENTS WHILE THE FIRST SEGMENTS CONTINUE AXIAL AND RADIAL COLLAPSING MOVEMENT, AND MEANS FOR SUBSEQUENTLY DRAWING SAID SECOND SEGMENTS RADIALLY OVER THE FIRST SEGMENTS TO COMPLETE COLLAPSE OF THE DRUM.
Claim 2
Dependent Claim
165 words
A TIRE BUILDING DRUM COMPRISING A HUB, A FIRST SET OF ARCUATE SEGMENTS, AND A SECOND SET OF ARCUATE SEGMENTS ALTERNATELY PLACED WITH RESPECT TO SAID FIRST SEGMENTS, SAID TWO SETS OF SEGMENTS DESCRIBING A CONTIGUOUS CIRCLE MEANS FOR COLLAPSING SAID DRUM INCLUDING AN AXIALLY MOVABLE ACTUATING MEANS MOUNTED AT SAID HUB, PIVOTAL LINKAGES CONNECTING THE FIRST SET OF SEGMENTS TO SAID ACTUATING MEANS FOR MOVING SAID FIRST SEGMENTS AXIALLY AND RADIALLY TOWARD SAID HUB, A MEMBER MOUNTED AT SAID HUB AXIALLY SLIDABLE WITH RESPECT TO SAID ACTUATING MEANS, PIVOTAL LINKAGES CONNECTING THE SAID ALTERNATELY PLACED SECOND SET OF SEGMENTS ONLY TO SAID SLIDABLE MEMBER, MEANS FOR MOVING SAID SLIDABLE MEMBER A DEFINITE DISTANCE TO SIMULTANEOUSLY MOVE SAID SECOND SEGMENTS AXIALLY DURING THE INITIAL PERIOD OF COLLAPSE, MEANS FOR ARRESTING AXIAL MOVEMENT OF SAID SECOND SEGMENTS WHILE THE FIRST SEGMENTS CONTINUE AXIAL AND RADIAL COLLAPSING MOVEMENT, AND MEANS FOR SUBSEQUENTLY DRAWING SAID SECOND SEGMENTS RADIALLY OVER THE FIRST SEGMENTS TO COMPLETE COLLAPSE OF THE DRUM.
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) | 1955-07-15 | 1956-01-14 | 1956-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-15 | 1960-01-14 | 1960-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-15 | 1964-01-14 | 1964-07-15 | $7700.00 | Window Closed / Lapsed |