US2925334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure closure valve
Assignee: GEA Group AG
•
Filing: 1955-06-17
•
Granted: 1960-02-16
•
Expires: 1975-06-17
Abstract
No abstract record available.
Inventors
- 👤 Henze Rudolf
- 👤 Rudolph Paul
- 👤 Danulat Hedwig Gertrud
- 👤 Danulat Ilse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:53
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/02; C10J3/20; C10J3/30; C10J3/34; C10J3/40; C10J3/42; C10J3/72; C10J3/78; C10J2200/00; C10J2200/09; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0953; C10J2300/0959; C10J2300/0973; C10J2300/0976; Y; Y10; Y10S; Y10S48/00; Y10S48/04; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN A PRESSURE GAS GENERATOR HAVING A CHARGING LOCKFOR PASSING FUEL INTO THE GENERATOR, A DISCHARGE LOCK FOR THE REMOVAL OF ASHES THEREFROM, AND SEPARATE PRESSURE CLOSURE VALVES SEALING THE INLET TO THE CHARGING LOCK, AND THE OUTLET FROM THE DISCHARGING LOCK, THE IMPROVEMENT WHICH COMPRISES AT LEAST ONE OF SAID VALVES COMPRISING MEANS DEFINING A SUBSTANTIALLY VERTICAL PASSAGE WAY FOR THE GRAVITY FLOW OF DIVIDED MATERIAL THERETHROUGH, A SUBSTANTIALLY RIGID ANNULAR SEAT COAXIALLY SURROUNDING SAID PASSAGE WAY, A DEFORMABLE ELASTIC ANNULAR SEALING ELEMENT OF DIFFERENT DIAMETER THAN SAID SEAT COAXIALLY SURROUNDING SAID PASSAGE WAY, AT LEAST A PORTION OF SAID PASSAGE WAY DEFINING A FLOW GUIDE CHANNEL FOR DIRECTING MATERIAL PASS-
Claim 2
Dependent Claim
112 words
IN A PRESSURE GAS GENERATOR HAVING A CHARGING LOCKFOR PASSING FUEL INTO THE GENERATOR, A DISCHARGE LOCK FOR THE REMOVAL OF ASHES THEREFROM, AND SEPARATE PRESSURE CLOSURE VALVES SEALING THE INLET TO THE CHARGING LOCK, AND THE OUTLET FROM THE DISCHARGING LOCK, THE IMPROVEMENT WHICH COMPRISES AT LEAST ONE OF SAID VALVES COMPRISING MEANS DEFINING A SUBSTANTIALLY VERTICAL PASSAGE WAY FOR THE GRAVITY FLOW OF DIVIDED MATERIAL THERETHROUGH, A SUBSTANTIALLY RIGID ANNULAR SEAT COAXIALLY SURROUNDING SAID PASSAGE WAY, A DEFORMABLE ELASTIC ANNULAR SEALING ELEMENT OF DIFFERENT DIAMETER THAN SAID SEAT COAXIALLY SURROUNDING SAID PASSAGE WAY, AT LEAST A PORTION OF SAID PASSAGE WAY DEFINING A FLOW GUIDE CHANNEL FOR DIRECTING MATERIAL PASS-
References Cited (Backward Citations)
GB190306518A
Cited
US845244A
Cited
US1720673A
Cited
US1966264A
Cited
US2155927A
Cited
US2200488A
Cited
US2485092A
Cited
US2388941A
Cited
FR1063040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |