US3354529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impeller making
Assignee: Ford Motor Co
•
Filing: 1964-10-19
•
Granted: 1967-11-28
•
Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 David W James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:19
CPC Classifications
F; F01; F01P; F01P5/00; F04; F04D; F04D29/00; F04D29/08; F04D29/10; F04D29/12; F04D29/126; F04D29/18; F04D29/22; F04D29/2205; F04D29/2222; F04D29/2227; F05; F05D; F05D2300/00; F05D2300/20; F05D2300/21; F05D2300/2112; F05D2300/40; F05D2300/43; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4998
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE METHOD OF MAKING A MOLDED PIMP IMPELLER COMPRISING THE STEPS OF PLACING AN ANNULAR CERAMIC INSERT IN A MOLD, PLACING A CYLINDRICAL METALLIC HUB HAVING AN ANNULAR FRANGIBLE EDGE IN THE MOLD WITH THE ANNULAR FRANGIBLE EDGE IN CONTACT WITH SAID ANNULAR CERAMIC INSERT, APPLYING AN AXIAL FORCE TO SAID ANNULAR CERAMIC INSERT AND SAID CYLINDRICAL HUB TO CRUSH SAID ANNULAR FRANGIBLE EDGE INTO SEALING CONTACT WITH SAID ANNULAR CERAMIC INSERT, AND MOLDING A PLASTIC IMPELLER BODY AROUND SAID CYLINDRICAL HUB AND SAID ANNULAR CERAMIC INSERT, SAID ANNULAR CERAMIC INSERT AND SAID METALLIC HUB HAVING MEANS FOR COOPERATION WITH THE MOLDED PLASTIC IMPELLER BODY FOR PREVENT RELATIVE MOTION THEREBETWEEN.
Claim 2
Independent Claim
110 words
THE METHOD OF MAKING A MOLDED PIMP IMPELLER COMPRISING THE STEPS OF PLACING AN ANNULAR CERAMIC INSERT IN A MOLD, PLACING A CYLINDRICAL METALLIC HUB HAVING AN ANNULAR FRANGIBLE EDGE IN THE MOLD WITH THE ANNULAR FRANGIBLE EDGE IN CONTACT WITH SAID ANNULAR CERAMIC INSERT, APPLYING AN AXIAL FORCE TO SAID ANNULAR CERAMIC INSERT AND SAID CYLINDRICAL HUB TO CRUSH SAID ANNULAR FRANGIBLE EDGE INTO SEALING CONTACT WITH SAID ANNULAR CERAMIC INSERT, AND MOLDING A PLASTIC IMPELLER BODY AROUND SAID CYLINDRICAL HUB AND SAID ANNULAR CERAMIC INSERT, SAID ANNULAR CERAMIC INSERT AND SAID METALLIC HUB HAVING MEANS FOR COOPERATION WITH THE MOLDED PLASTIC IMPELLER BODY FOR PREVENT RELATIVE MOTION THEREBETWEEN.
References Cited (Backward Citations)
US1934239A
Cited
US2127712A
Cited
US2285219A
Cited
US2411024A
Cited
US2724864A
Cited
US2937409A
Cited
US2946093A
Cited
US3276115A
Cited
US3276114A
Cited
US3221382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |