US3619332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for curing elongate workpieces
Assignee: G Siempelkamp GmbH and Co KG
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Filing: 1968-07-25
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Granted: 1971-11-09
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Expires: 1988-07-25
Abstract
Abstract An elongate workpiece of flexible polymeric material, such as a conveyor belt, is passed back and forth through different stages of a multiplaten press for simultaneous curing of two or more sections of this workpiece.
Inventors
- 👤 Hendrikus Johannus Bongers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:45
CPC Classifications
B; B29; B29D; B29D29/00; B29D29/06; B29C; B29C43/00; B29C43/22; B29K; B29K2021/00; Y; Y10; Y10S; Y10S425/00; Y10S425/818; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
50 words
A system as defined in claim 1 wherein said deflecting means comprises a roller positioned to receive a first run of the workpiece emerging from a discharge end of a first press stage and to direct a second run of the workpiece to an entrance end of another press stage.
Claim 2
Dependent Claim
49 words
A system as defined in claim 2 wherein the length of the path of the workpiece from said discharge end around said roller to said entrance end is substantially equal to a whole number times the effective length of each of said stages in the direction of workpiece movement.
Claim 3
Dependent Claim
58 words
A system as defined in claim 2, further comprising clamping means on the side of said press remote from said roller for concurrently gripping said first and second runs, said roller being displaceable in a direction away from the press for tensioning said runs in an open position of the press and upon closure of said clamping means.
References Cited (Backward Citations)
US3050777A
Cited
US3209405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |