Patent US3250841A successfully refreshed from Google Patents.
US3250841A
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US
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Elastomeric shrinking method and apparatus
Assignee: Goodrich Corp
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Filing: 1963-08-16
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Granted: 1966-05-10
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Expires: 1983-08-16
Abstract
No abstract record available.
Inventors
- 👤 Norman E Reinhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:44
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/52; B29C; B29C48/00; B29C48/03; B29C48/05; B29C48/12; B29C48/25; B29C48/88; B29C48/91; B29C48/07; B29C48/08; B29L; B29L2030/00; B29L2030/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
THE METHOD OF REMOVING RESIDUAL SHRINKAGE FROM ELASTOMERIC MATERIAL WHICH HAS BEEN ELONGATED BY PRIOR PROCESSING THEREOF; COMPRISING CONVEYING SAID MATERIAL WHILE IN A HOT PLASTIC CONDITION, WITHOUT FESTOONING, ON A PLURALITY OF PARALLEL DISPOSED MATERIAL SUPPORTING CYLINDRICAL SURFACES REVOLVING AT UNIFORM SPEEDS OF ROTATION AND HAVING DIAMETERS INCREMENTALLY REDUCED IN THE DIRECTION OF TRAVEL OF SAID MATERIAL, AND THE LOCI OF THEIR AXIS DEFINING A CURVE HAVING ITS CENTRAL PORTION LOWER THAN ITS END PORTIONS; WHEREBY FORWARD TRAVEL OF SUCCESSIVE CONTIGUOUS PORTIONS OF SAID MATERIAL IS FORCEABLY RETARDED BY PROGRESSIVELY ADDITIVE AMOUNTS.
Claim 2
Independent Claim
93 words
THE METHOD OF REMOVING RESIDUAL SHRINKAGE FROM ELASTOMERIC MATERIAL WHICH HAS BEEN ELONGATED BY PRIOR PROCESSING THEREOF; COMPRISING CONVEYING SAID MATERIAL WHILE IN A HOT PLASTIC CONDITION, WITHOUT FESTOONING, ON A PLURALITY OF PARALLEL DISPOSED MATERIAL SUPPORTING CYLINDRICAL SURFACES REVOLVING AT UNIFORM SPEEDS OF ROTATION AND HAVING DIAMETERS INCREMENTALLY REDUCED IN THE DIRECTION OF TRAVEL OF SAID MATERIAL, AND THE LOCI OF THEIR AXIS DEFINING A CURVE HAVING ITS CENTRAL PORTION LOWER THAN ITS END PORTIONS; WHEREBY FORWARD TRAVEL OF SUCCESSIVE CONTIGUOUS PORTIONS OF SAID MATERIAL IS FORCEABLY RETARDED BY PROGRESSIVELY ADDITIVE AMOUNTS.
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |