Patent US3316593A successfully refreshed from Google Patents.
US3316593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding apparatus for hardenable synthetic materials
Assignee: Individual
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Filing: 1964-06-15
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Granted: 1967-05-02
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Neumann Karl Josef
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:00
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/20; B29C33/202; B29C43/00; B29C2033/207
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
IN A MOLDING APARATUS OF THE TYPE WHICH INCLUDES A PRESS AND A MOLDING FORM HAVING AN UPPER HALF AND A LOWER HALF FOR PRODUCING MOLDED PARTS OF PLASTIC MATERIAL, ESPECIALLY HARDENABLE SYNTHETIC MATERIALS, IN A HOT PRESSING PROCESS IN WHICH THE MOLDING FORM IS MAINTAINED UNDER PRESSURE AFTER CLOSING DURING A BAKING OR HARDENING PERIOD, THE IMPROVEMENT WHICH COMPRISES, A PLURALITY OF ECCENTRIC SHAFTS ROTATABLY MOUNTED ON ONE OF SAID MOLDING FORM HALVES, AT LEAST ONE TENSION ROD PIVOTALLY MOUNTED ON EACH OF SAID ECCENTRIC SHAFTS, A PLURALITY OF LOCKING MEMBERS ON THE OTHER MOLDING FORM HALF ENGAGEABLE BY SAID TENSION RODS, MEANS FOR PIVOTING SAID TENSION RODS INTO A LOCKING POSITION WITH SAID LOCKING MEMBERS AND MEANS FOR ROTATING SAID ECCENTRIC SHAFTS IN ONE DIRECTION TO EXERT A PULLING FORCE ON SAID LOCKING MEMBER WITH SAID TENSION RODS AND LOCK SAID MOLDING FORM HALVES TOGETHER.
Claim 2
Dependent Claim
147 words
IN A MOLDING APARATUS OF THE TYPE WHICH INCLUDES A PRESS AND A MOLDING FORM HAVING AN UPPER HALF AND A LOWER HALF FOR PRODUCING MOLDED PARTS OF PLASTIC MATERIAL, ESPECIALLY HARDENABLE SYNTHETIC MATERIALS, IN A HOT PRESSING PROCESS IN WHICH THE MOLDING FORM IS MAINTAINED UNDER PRESSURE AFTER CLOSING DURING A BAKING OR HARDENING PERIOD, THE IMPROVEMENT WHICH COMPRISES, A PLURALITY OF ECCENTRIC SHAFTS ROTATABLY MOUNTED ON ONE OF SAID MOLDING FORM HALVES, AT LEAST ONE TENSION ROD PIVOTALLY MOUNTED ON EACH OF SAID ECCENTRIC SHAFTS, A PLURALITY OF LOCKING MEMBERS ON THE OTHER MOLDING FORM HALF ENGAGEABLE BY SAID TENSION RODS, MEANS FOR PIVOTING SAID TENSION RODS INTO A LOCKING POSITION WITH SAID LOCKING MEMBERS AND MEANS FOR ROTATING SAID ECCENTRIC SHAFTS IN ONE DIRECTION TO EXERT A PULLING FORCE ON SAID LOCKING MEMBER WITH SAID TENSION RODS AND LOCK SAID MOLDING FORM HALVES TOGETHER.
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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |