Patent US3077003A successfully refreshed from Google Patents.
US3077003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plunger mold
Assignee: Goshen Rubber Co Inc
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Filing: 1960-04-14
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Granted: 1963-02-12
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Expires: 1980-04-14
Abstract
No abstract record available.
Inventors
- 👤 Carroll D Hobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:49
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
APPARATUS FOR MOLDING A RUBBER PART WITH A RIGID INSERT, SAID APPARATUS COMPRISING: A FIRST PLATE; A SECOND PLATE DISPOSABLE OVER SAID FIRST PLATE AND HAVING A HOLE THERETHROUGH FOR FREELY PASSING A FIRST PORTION OF SAID INSERT, SAID SECOND PLATE FURTHER HAVING A RECESS ALIGNED WITH SAID HOLE AND DISPOSABLE ADJACENT SAID FIRST PALTE FOR RECEIVING A SECOND PORTION OF SAID INSERT TO RESTRAIN SAID INSERT AGAINST MOVEMENT RELATIVE TO SAID FIRST PLATE; AND A THIRD PLATE DISPOSABLE OVER SAID SECOND PLATE, SAID THIRD PLATE INCLUDING MEANS DEFINING A MOLD CAVITY AND MEANS FOR CHARGING MATERIAL INTO SAID CAVITY, SAID CAVITY BEING OF GENERALLY CONOIDAL SHAPE AND HAVING A BASE, A VERTEX AND SIDES TAPERING FROM SAID BASE TO SAID VERTEX, THE WALLS OF SAID CAVITY SURROUNDING THE SIDES AND ONE END OF SAID FIRST PORTION OF SAID INSERT SPACED OUTWARDLY THEREFROM, SEPARATION OF SAID SECOND PLATE AND SAID THIRD PLATE UPON COMPLETION OF A MOLDING OPERATION SERVING TO EXTRACT THE FINISHED PART FROM THE MOLD CAVITY.
Claim 2
Dependent Claim
168 words
APPARATUS FOR MOLDING A RUBBER PART WITH A RIGID INSERT, SAID APPARATUS COMPRISING: A FIRST PLATE; A SECOND PLATE DISPOSABLE OVER SAID FIRST PLATE AND HAVING A HOLE THERETHROUGH FOR FREELY PASSING A FIRST PORTION OF SAID INSERT, SAID SECOND PLATE FURTHER HAVING A RECESS ALIGNED WITH SAID HOLE AND DISPOSABLE ADJACENT SAID FIRST PALTE FOR RECEIVING A SECOND PORTION OF SAID INSERT TO RESTRAIN SAID INSERT AGAINST MOVEMENT RELATIVE TO SAID FIRST PLATE; AND A THIRD PLATE DISPOSABLE OVER SAID SECOND PLATE, SAID THIRD PLATE INCLUDING MEANS DEFINING A MOLD CAVITY AND MEANS FOR CHARGING MATERIAL INTO SAID CAVITY, SAID CAVITY BEING OF GENERALLY CONOIDAL SHAPE AND HAVING A BASE, A VERTEX AND SIDES TAPERING FROM SAID BASE TO SAID VERTEX, THE WALLS OF SAID CAVITY SURROUNDING THE SIDES AND ONE END OF SAID FIRST PORTION OF SAID INSERT SPACED OUTWARDLY THEREFROM, SEPARATION OF SAID SECOND PLATE AND SAID THIRD PLATE UPON COMPLETION OF A MOLDING OPERATION SERVING TO EXTRACT THE FINISHED PART FROM THE MOLD CAVITY.
References Cited (Backward Citations)
US2456615A
Cited
US1176017A
Cited
US1621000A
Cited
US2279208A
Cited
US2465276A
Cited
US2717793A
Cited
US2982999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |