US3016574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting apparatus
Assignee: Colgate Palmolive Co
•
Filing: 1958-08-06
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Granted: 1962-01-16
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Expires: 1978-08-06
Abstract
No abstract record available.
Inventors
- 👤 Charles F Fischer
- 👤 Jr Amory E Austin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:07
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/46; B29C45/56; B29C45/561; B29C2045/5645; B29C2045/5695
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
AN APPARATUS FOR MOLDING PLASTIC PRODUCTS COMPRISING A MOLD ASSEMBLY HAVING RELATIVELY SEPARABLE FORMING DIE MEMBERS DEFINING A MOLD CAVITY BETWEEN THEM, MEANS NORMALLY URGING THE DIE MEMBERS TOWARD EACH OTHER TO DEFINE A MINIMUM SIZE CAVITY BETWEEN THEM, MEANS INCLUDING SUPPLY AND RETURN PASSAGES FOR RECYCLING LIQUID PLASTIC THROUGH SAID CAVITY, MEANS FOR BLOCKING SAID RETURN PASSAGE FOR ENABLING SAID LIQUID PLASTIC TO FILL SAID CAVITY UNDER PRESSURE AND FORCE SAID DIE MEMBERS APART UNTIL AN ENLARGED CAVITY OF PREDETERMINED SIZE IS ATTAINED, AND FURTHER MEANS EFFECTIVE AT SAID SUPPLY PASSAGE FOR EXERTING INCREASED PRESSURE ON SAID PLASTIC IN SAID ENLARGED CAVITY, SAID LIQUID PLASTIC BEING RECYCLED UNDER PUMP PRESSURE IN ONE OF SAID PASSAGES AND SAID INCREASED PRESSURE BEING SEPARATELY PROVIDED BY A COMPRESSION CYLINDER FORMING PART OF SAID SUPPLY PASSAGE.
Claim 2
Independent Claim
133 words
AN APPARATUS FOR MOLDING PLASTIC PRODUCTS COMPRISING A MOLD ASSEMBLY HAVING RELATIVELY SEPARABLE FORMING DIE MEMBERS DEFINING A MOLD CAVITY BETWEEN THEM, MEANS NORMALLY URGING THE DIE MEMBERS TOWARD EACH OTHER TO DEFINE A MINIMUM SIZE CAVITY BETWEEN THEM, MEANS INCLUDING SUPPLY AND RETURN PASSAGES FOR RECYCLING LIQUID PLASTIC THROUGH SAID CAVITY, MEANS FOR BLOCKING SAID RETURN PASSAGE FOR ENABLING SAID LIQUID PLASTIC TO FILL SAID CAVITY UNDER PRESSURE AND FORCE SAID DIE MEMBERS APART UNTIL AN ENLARGED CAVITY OF PREDETERMINED SIZE IS ATTAINED, AND FURTHER MEANS EFFECTIVE AT SAID SUPPLY PASSAGE FOR EXERTING INCREASED PRESSURE ON SAID PLASTIC IN SAID ENLARGED CAVITY, SAID LIQUID PLASTIC BEING RECYCLED UNDER PUMP PRESSURE IN ONE OF SAID PASSAGES AND SAID INCREASED PRESSURE BEING SEPARATELY PROVIDED BY A COMPRESSION CYLINDER FORMING PART OF SAID SUPPLY PASSAGE.
References Cited (Backward Citations)
US2781547A
Cited
US2803043A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |