US3271845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing rotary valves
Assignee: Individual
•
Filing: 1962-01-23
•
Granted: 1966-09-13
•
Expires: 1982-01-23
Abstract
No abstract record available.
Inventors
- 👤 Breher Rudolf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:44
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14; B29C45/14754; B29C49/00; B29C49/02; B29C49/06; F; F16; F16K; F16K27/00; F16K27/06; F16K27/067; B29C2049/023; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0402; Y10T137/0491; Y10T137/0508; Y10T137/598; Y10T137/6031; Y10T137/6035; Y10T29/00; Y10T29/49; Y10T29/49405; Y10T29/49412; Y10T29/49416; Y10T29/49417
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A METHOD OF MANUFACTURING A ROTARY VALVE HAVING A MOLDED HOUSING OF SYNTHETIC MATERIAL FORMED INTEGRALLY WITH CONNECTING BRANCHES AND A ROTARY MEMBER HAVING A SPINDLE ROTATABLY MOUNTED IN SAID HOUSING, COMPRISING THE STEPS FO PREFABRICATING A ROTARY MEMBER WITH A PASSAGE THERETHROUGH, PREFABRICATING SEALING RINGS OF PLASTIC MATERIAL, MOUNTING SAID ROTARY MEMBER AND SAID SEALING RINGS ON A CORE EXTENDING THROUGH AND BEYOND BOTH ENDS OF THE PASSAGE OF SAID ROTARY MEMBER WITH SAID SEALING RINGS TIGHTLY ENGAGING SAID ROTARY MEMBER, INSERTING SAID ROTARY MEMBER JOINTLY WITH SAID CORE AND SAID SEALING RINGS INTO A CONFINED SPACE OF AN INNER CONFIGURATION COMPLEMENTARY TO THE OUTER CONFIGURATION OF SAID HOUSING, SAID CORE BEING ADAPTED TO FORM PASSAGES FOR SAID CONNECTING BRANCHES, MOLDING SAID HOUSING WITHIN SAID CONFINED SPACE AROUND SAID ROTARY MEMBER AND AROUND SAID CORE AND SAID SEALING RINGS, AND REMOVING THE FINISHED PRODUCT FROM SAID CONFINED SPACE AND REMOVING SAID CORE FROM SAID ROTARY MEMBER, SAID HOUSING AND SAID SEALING RINGS AFTER SAID SYNTHETIC MATERIAL OF SAID HOUSING HAS SET.
Claim 2
Independent Claim
172 words
A METHOD OF MANUFACTURING A ROTARY VALVE HAVING A MOLDED HOUSING OF SYNTHETIC MATERIAL FORMED INTEGRALLY WITH CONNECTING BRANCHES AND A ROTARY MEMBER HAVING A SPINDLE ROTATABLY MOUNTED IN SAID HOUSING, COMPRISING THE STEPS FO PREFABRICATING A ROTARY MEMBER WITH A PASSAGE THERETHROUGH, PREFABRICATING SEALING RINGS OF PLASTIC MATERIAL, MOUNTING SAID ROTARY MEMBER AND SAID SEALING RINGS ON A CORE EXTENDING THROUGH AND BEYOND BOTH ENDS OF THE PASSAGE OF SAID ROTARY MEMBER WITH SAID SEALING RINGS TIGHTLY ENGAGING SAID ROTARY MEMBER, INSERTING SAID ROTARY MEMBER JOINTLY WITH SAID CORE AND SAID SEALING RINGS INTO A CONFINED SPACE OF AN INNER CONFIGURATION COMPLEMENTARY TO THE OUTER CONFIGURATION OF SAID HOUSING, SAID CORE BEING ADAPTED TO FORM PASSAGES FOR SAID CONNECTING BRANCHES, MOLDING SAID HOUSING WITHIN SAID CONFINED SPACE AROUND SAID ROTARY MEMBER AND AROUND SAID CORE AND SAID SEALING RINGS, AND REMOVING THE FINISHED PRODUCT FROM SAID CONFINED SPACE AND REMOVING SAID CORE FROM SAID ROTARY MEMBER, SAID HOUSING AND SAID SEALING RINGS AFTER SAID SYNTHETIC MATERIAL OF SAID HOUSING HAS SET.
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) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |