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Patent US3611536A successfully refreshed from Google Patents.
US3611536A
Expired / Lapsed
US
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Apparatus for applying expansible sheaths to cores
Assignee: Individual
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Filing: 1969-06-11
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Granted: 1971-10-12
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Expires: 1989-06-11
Abstract
Abstract AN APPARATUS FOR APPLYING A RUBBER OR OTHER RESILIENTLY EXPANSIBLE SHEATH TO A CORE MEMBER, AND SHEATH HAVING NORMAL INTERIOR DIAMETER LESS THAN THE DIAMETER OF SAID CORE, SAID APPARATUS CONSISTING OF SEALS FOR CLOSING THE ENDS OF SAID SHEATH, WHEREBY AIR UNDER PRESSURE INTRODUCED THEREIN WILL EXPAND SAID SHEATH TO AN INTERNAL DIAMETER GREATER THAN THE CORE DIAMETER, AND MACHANISM FOR INTRODUCING SAID CORE INTO SAID SHEATH WHILE THE LATTER IS SO EXPANDED WHEREBY WHEN SAID PRESSURE IS RELIEVED SAID SHEATH WILL CONTRACT RESILIENTLY INTO SNUG ENGAGEMENT WITH SAID CORE.
Inventors
- 👤 Manfred H Guenther
- 👤 Eugene Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:53
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/18; B29C63/20; B29L; B29L2031/00; B29L2031/32; B29L2031/324; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544; Y10T29/49547; Y10T29/49558; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/53; Y10T29/53657; Y10T29/53796; Y10T29/5383
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |