US3699197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing rubber profiles
Assignee: GEORG M EGGER
•
Filing: 1971-04-20
•
Granted: 1972-10-17
•
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 18:13
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)
US1594845A
Cited
US2454731A
Cited
US2369858A
Cited
US2414524A
Cited
US2452884A
Cited
US2499421A
Cited
US3051992A
Cited
US3150213A
Cited
US3184788A
Cited
US3286302A
Cited
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 |