Patent US4905696A successfully refreshed from Google Patents.
Patent US3118744A successfully refreshed from Google Patents.
US3118744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for evaporating volatile constituents from plastic, elastic and viscous materials
Assignee: Bayer AG
•
Filing: 1961-03-08
•
Granted: 1964-01-21
•
Expires: 1981-03-08
Abstract
No abstract record available.
Inventors
- 👤 Erdmenger Rudolf
- 👤 Oetke Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:49
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/18; F26B17/20; B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/395; B29C48/40; B29C48/405; B29C48/41; B29C48/50; B29C48/76; B29C48/765; B29C48/766; B29C48/767; B29C48/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
AN EVAPORATION APPARATUS COMPRISING A HOUSING HAVING AN INLET AND OUTLET, A FIRST AND A SECOND PAIR OF WORMS ROTATABLY MOUNTED SIDE BY SIDE IN SAID HOUSING, THE WORMS OF SAID FIRST PAIR HAVING ONE DIRECTION OF PITCH AND INTERMESHING WITH EACH OTHER, THE WORMS OF SAID SECOND PAIR HAVING AN OPPOSITE PITCH AND INTERMESHING WITH EACH OTHER THE INNERMOST WORMS OF EACH PAIR BEING POSITIONED IN NON-INTERMESHING PERIPHERAL ADJACENCY RELATION, THE LOWER PORTION OF SAID HOUSING FORMING A TROUGH-SHAPED CASING SURROUNDING THE LOWER PORTIONS OF SAID WORMS, MEANS FOR ROTATING SAID FIRST PAIR OF WORMS IN ONE DIRECTION AND SAID SECOND PAIR OF WORMS IN THE OPPOSITE DIRECTION, MEANS FOR HEATING AT LEAST A PORTION OF THE WALL OF THE HOUSING ADJACENT SAID WORMS AND MEANS FOR REMOVING VAPOR FROM THE HOUSING.
Claim 2
Dependent Claim
133 words
AN EVAPORATION APPARATUS COMPRISING A HOUSING HAVING AN INLET AND OUTLET, A FIRST AND A SECOND PAIR OF WORMS ROTATABLY MOUNTED SIDE BY SIDE IN SAID HOUSING, THE WORMS OF SAID FIRST PAIR HAVING ONE DIRECTION OF PITCH AND INTERMESHING WITH EACH OTHER, THE WORMS OF SAID SECOND PAIR HAVING AN OPPOSITE PITCH AND INTERMESHING WITH EACH OTHER THE INNERMOST WORMS OF EACH PAIR BEING POSITIONED IN NON-INTERMESHING PERIPHERAL ADJACENCY RELATION, THE LOWER PORTION OF SAID HOUSING FORMING A TROUGH-SHAPED CASING SURROUNDING THE LOWER PORTIONS OF SAID WORMS, MEANS FOR ROTATING SAID FIRST PAIR OF WORMS IN ONE DIRECTION AND SAID SECOND PAIR OF WORMS IN THE OPPOSITE DIRECTION, MEANS FOR HEATING AT LEAST A PORTION OF THE WALL OF THE HOUSING ADJACENT SAID WORMS AND MEANS FOR REMOVING VAPOR FROM THE HOUSING.
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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |