Patent US3699197A successfully refreshed from Google Patents.
US3699197A
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US
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Method of producing rubber profiles
Assignee: GEORG M EGGER
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Filing: 1971-04-20
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Granted: 1972-10-17
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Expires: 1991-04-20
Abstract
Abstract Method for the production of rubber profiles of predetermined cross-sectional dimensions by subjecting a vulcanizable rubber profile in the form of a continuous length to stretching, then feeding the stretched profile to a liquid heating medium to vulcanize the rubber and fix the desired cross-sectional dimensions, while automatically adjusting the speed of withdrawal of the profile from the liquid medium into relation to the feeding speed thereinto so as to maintain a substantially constant radio of withdrawal speed to feeding speed.
Inventors
- 👤 Georg M Egger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:30
CPC Classifications
B; B29; B29C; B29C35/00; B29C35/02; B29C35/04; B29C35/06; B29C48/00; B29C48/25; B29C48/92; B29C55/00; B29C55/22; H; H02; H02P; H02P5/00; H02P5/46; H02P5/50; B29C35/041; B29C2035/042; B29C2948/00; B29C2948/92; B29C2948/92009; B29C2948/92085; B29C2948/92104; B29C2948/92323; B29C2948/92428; B29C2948/92504; B29C2948/9258; B29C2948/926; B29C2948/92609; B29C2948/92809; B29C2948/92819; B29C2948/92923; B29C2948/92933; B29C2948/92961; B29C48/001; B29C48/0018; B29C48/03; B29C48/12; B29K; B29K2021/00; B29L; B29L2031/00; B29L2031/001; B29L2031/003
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
32 words
The method of claim 1 in which the size of the cross-section of the vulcanized profile is determined by the selection of the ratio between the withdrawal speed and the feeding speed.
Claim 2
Dependent Claim
23 words
The method of claim 1, in which the temperature of the liquid heating medium is between about 140* C. and about 220* C.
Claim 3
Dependent Claim
28 words
The method of claim 1 in which said liquid heating medium has a specific gravity of the order of magnitude of the specific gravity of the rubber profile.
Claim 4
Dependent Claim
17 words
The method of claim 1 in which said profile is fed from the nozzle of an extruder.
References Cited (Backward Citations)
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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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |