US3281910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete molding apparatus with alignment means
Assignee: Austin Concrete Works Inc
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Filing: 1963-08-23
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Granted: 1966-11-01
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Expires: 1983-08-23
Abstract
No abstract record available.
Inventors
- 👤 Harold G Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:33
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/02; B28B21/10; B28B21/22; B28B21/24; B28B1/00; B28B1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN APPARATUS FOR FORMING MOLDED CONCRETE STRUCTURES COMPRISING, A PLURALITY OF PACKER HEADS, MEANS FOR ROTATING SAID PACKER HEADS, MEANS MOVING SAID PACKER HEADS VERTICALLY, A MOLD-RECEIVING SECTION POSITIONED IN A PLANE BELOW SAID PACKER HEADS, A HOLLOW MOLD SUPPORTED UPON SAID MOLD-RECEIVING SECTION, FIXED DOWEL PINS EXTENDING UPWARDLY FROM SAID MOLDRECEIVING SECTION AND EXTENDING INTO THE LOWER END OF THE MOLD WHEN SAID MOLD IS IN POSITION ON SAID MOLD-RECEIVING SECTION, GUIDE MEANS SECURED TO THE MOLD-RECEIVING SECTION, AND SURROUNDING THE LOWER PORTION OF THE MOLD SO AS TO EXTEND UPWARDLY ALONG THE EXTERIOR SURFACE, THEREOF TO GUIDE MOVEMENT OF THE MOLD IN A TRUE AXIAL DIRECTION WHEN SAID MOLD IS RAISED UPWARDLY AFTER THE MOLDING OPERATION HAS BEEN COMPLETED.
Claim 2
Independent Claim
121 words
AN APPARATUS FOR FORMING MOLDED CONCRETE STRUCTURES COMPRISING, A PLURALITY OF PACKER HEADS, MEANS FOR ROTATING SAID PACKER HEADS, MEANS MOVING SAID PACKER HEADS VERTICALLY, A MOLD-RECEIVING SECTION POSITIONED IN A PLANE BELOW SAID PACKER HEADS, A HOLLOW MOLD SUPPORTED UPON SAID MOLD-RECEIVING SECTION, FIXED DOWEL PINS EXTENDING UPWARDLY FROM SAID MOLDRECEIVING SECTION AND EXTENDING INTO THE LOWER END OF THE MOLD WHEN SAID MOLD IS IN POSITION ON SAID MOLD-RECEIVING SECTION, GUIDE MEANS SECURED TO THE MOLD-RECEIVING SECTION, AND SURROUNDING THE LOWER PORTION OF THE MOLD SO AS TO EXTEND UPWARDLY ALONG THE EXTERIOR SURFACE, THEREOF TO GUIDE MOVEMENT OF THE MOLD IN A TRUE AXIAL DIRECTION WHEN SAID MOLD IS RAISED UPWARDLY AFTER THE MOLDING OPERATION HAS BEEN COMPLETED.
References Cited (Backward Citations)
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US1022933A
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US1891731A
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US2875499A
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US3106005A
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FR1231155A
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US3091831A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |