US3322306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring and dosing apparatus
Assignee: Wibau GmbH
•
Filing: 1965-04-28
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Granted: 1967-05-30
•
Expires: 1985-04-28
Abstract
No abstract record available.
Inventors
- 👤 Munderich Paul
- 👤 Gelnhausen Kreis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:41
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1059; E01C19/1068; E01C19/1077; G; G01; G01F; G01F13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A MEASURING AND DOSING APPARATUS FOR HANDLING THERMOPLASTIC AND BITUMINOUS SUBSTANCES DIFFICULT TO CONVEY, COMPRISING, IN COMBINATION, A HERMETICALLY SEALED MEASURING VESSEL, MEANS FOR INTRODUCING A PREDETERMINED QUANTITY OF A LIQUID SUBSTANCE INTO SAID VESSEL, MEANS FOR DISCHARGING THE LIQUID OF MEASURED QUANTITY FROM SAID VESSEL, AND A SOURCE OF COMPRESSED FLUID FOR ASSISTING AT LEAST ONE OF THE AFOREMENTIONED MEANS, SAID VESSEL COMPRISING A CYLINDRICAL MEASURING ZONE, FURTHER INCLUDING INLET MEANS AND OUTLET MEANS FOR SAID LIQUID, AS WELL AS FILTER MEANS BETWEEN SAID INLET MEANS AND SAID MEASURING ZONE, SAID OUTLET MEANS COMMUNICATING WITH SAID MEASURING ZONE.
Claim 2
Dependent Claim
99 words
A MEASURING AND DOSING APPARATUS FOR HANDLING THERMOPLASTIC AND BITUMINOUS SUBSTANCES DIFFICULT TO CONVEY, COMPRISING, IN COMBINATION, A HERMETICALLY SEALED MEASURING VESSEL, MEANS FOR INTRODUCING A PREDETERMINED QUANTITY OF A LIQUID SUBSTANCE INTO SAID VESSEL, MEANS FOR DISCHARGING THE LIQUID OF MEASURED QUANTITY FROM SAID VESSEL, AND A SOURCE OF COMPRESSED FLUID FOR ASSISTING AT LEAST ONE OF THE AFOREMENTIONED MEANS, SAID VESSEL COMPRISING A CYLINDRICAL MEASURING ZONE, FURTHER INCLUDING INLET MEANS AND OUTLET MEANS FOR SAID LIQUID, AS WELL AS FILTER MEANS BETWEEN SAID INLET MEANS AND SAID MEASURING ZONE, SAID OUTLET MEANS COMMUNICATING WITH SAID MEASURING ZONE.
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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) | 1970-05-29 | 1970-11-28 | 1971-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-29 | 1974-11-28 | 1975-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-29 | 1978-11-28 | 1979-05-30 | $7700.00 | Window Closed / Lapsed |