Patent US3285433A successfully refreshed from Google Patents.
US3285433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unloader for green ceramic ware
Assignee: Verson Manufacturing Co
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Filing: 1964-10-30
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Granted: 1966-11-15
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Expires: 1984-10-30
Abstract
No abstract record available.
Inventors
- 👤 Jene A Beneke
- 👤 Cornelius J Kelleher
- 👤 Samuel G Maguire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:31
CPC Classifications
B; B28; B28B; B28B13/00; B28B13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
IN AN UNLOADER FOR A GREEN CERAMIC TANK WHICH ADHERES TO THE WALLS OF A MOLD HAVING: (A) AN UNLOADING HEAD HAVING A PAIR OF OPPOSITELY FACING VACUUM PLATES, (B) A FRAME HAVING OPPOSITELY DIRECTED PNEUMATIC CYLINDERS, (C) PISTONS SECURED TO CONFRONTING SURFACES OF SAID PLATES AND OPERATING IN SAID CYLINDERS, (D) MEANS FOR APPLYING COMPRESSED AIR TO SAID CYLINDERS TO MOVE SAID PLATES APART TO CONTACT OPPOSITE WALLS OF SAID TANK, AND (E) MEANS FOR APPLYING A VACUUM TO SAID OPPOSITE WALLS THROUGH SAID PLATES, THE COMBINATION WHICH COMPRISES: (F) RESILIENTLY BIASED STOP MEANS FOR LIMITING SEPARATION OF SAID PLATES AND FOR RETURNING SAID PLATES TO A RETRACTED POSITION WHEN SAID CYLINDERS ARE VENTED WITH SAID RESILIENT MEANS EXERTING FORCES ON SAID PLATES ADEQUATE TO BREAK THE SEAL BETWEEN SAID WALLS OF SAID MOLD AND SAID WALLS OF SAID TANK, AND (G) MEANS FOR LIFTING SAID HEAD OUT OF SAID MOLD WHILE MAINTAINING SAID VACUUM.
Claim 2
Dependent Claim
156 words
IN AN UNLOADER FOR A GREEN CERAMIC TANK WHICH ADHERES TO THE WALLS OF A MOLD HAVING: (A) AN UNLOADING HEAD HAVING A PAIR OF OPPOSITELY FACING VACUUM PLATES, (B) A FRAME HAVING OPPOSITELY DIRECTED PNEUMATIC CYLINDERS, (C) PISTONS SECURED TO CONFRONTING SURFACES OF SAID PLATES AND OPERATING IN SAID CYLINDERS, (D) MEANS FOR APPLYING COMPRESSED AIR TO SAID CYLINDERS TO MOVE SAID PLATES APART TO CONTACT OPPOSITE WALLS OF SAID TANK, AND (E) MEANS FOR APPLYING A VACUUM TO SAID OPPOSITE WALLS THROUGH SAID PLATES, THE COMBINATION WHICH COMPRISES: (F) RESILIENTLY BIASED STOP MEANS FOR LIMITING SEPARATION OF SAID PLATES AND FOR RETURNING SAID PLATES TO A RETRACTED POSITION WHEN SAID CYLINDERS ARE VENTED WITH SAID RESILIENT MEANS EXERTING FORCES ON SAID PLATES ADEQUATE TO BREAK THE SEAL BETWEEN SAID WALLS OF SAID MOLD AND SAID WALLS OF SAID TANK, AND (G) MEANS FOR LIFTING SAID HEAD OUT OF SAID MOLD WHILE MAINTAINING SAID VACUUM.
References Cited (Backward Citations)
US2967568A
Cited
US3166202A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |