US3351216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete block stacking machine
Assignee: Builders Equipment Co
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Filing: 1964-11-25
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Granted: 1967-11-07
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Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 Paul M Thomas
- 👤 Lawrence W Wright
- 👤 Russell W Burge
- 👤 Eugene E Crile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:28
CPC Classifications
B; B65; B65G; B65G57/00; B65G57/02; B65G57/16; B65G57/20; B65G57/22; B65G57/24; B65G57/245; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/102; Y10S414/103; Y10S414/105; Y10S414/106; Y10S414/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
IN A BLOCK STACKING MACHINE THE COMBINATION OF: A MAIN FRAME; A VERTICALLY MOVABLE ELEVATOR THEREON; A HORIZONTALLY MOVABLE DECK MEANS MOVABLE OVER SAID ELEVATOR; FIRST MEANS FOR RESTRAINING BLOCKS ON SAID DECK MEANS TO A POSITION OVER SAID ELEVATOR; SECOND MEANS FOR RETRACTING SAID DECK FROM BELOW BLOCKS THEREON THE THEREBY DEPOSIT SAID BLOCKS ON SAID ELEVATOR; A DEPOSITING TAPERED EDGE MEANS CARRIED BY SAID DECK AND DISPOSED AT AN EDGE OF SAID DECK FROM WHICH BLOCKS ARE DEPOSITED FROM SAID DECK AND ONTO SAID ELEVATOR; AND THIRD MEANS PIVOTALLY MOUNTING SAID TAPERED EDGE MEANS RELATIVE TO SAID DECK AND ON A SUBSTANTIALLY HORIZONTAL AXIS; DECK LOADING MEANS DISPOSED AT A LEVEL TO LOAD BLOCK ONTO SAID TAPERED EDGE MEANS, SAID TAPERED EDGE MEANS AND SAID DECK MOVABLE TOWARD AND AWAY FROM SAID LOADING MEANS; AND OPERATING MEANS FOR HOLDING SAID TAPERED EDGE MEANS UPWARDLY AT SAID LEVEL, WHEN ADJACENT SAID DECK LOADING MEANS, AND TO
Claim 2
Dependent Claim
157 words
IN A BLOCK STACKING MACHINE THE COMBINATION OF: A MAIN FRAME; A VERTICALLY MOVABLE ELEVATOR THEREON; A HORIZONTALLY MOVABLE DECK MEANS MOVABLE OVER SAID ELEVATOR; FIRST MEANS FOR RESTRAINING BLOCKS ON SAID DECK MEANS TO A POSITION OVER SAID ELEVATOR; SECOND MEANS FOR RETRACTING SAID DECK FROM BELOW BLOCKS THEREON THE THEREBY DEPOSIT SAID BLOCKS ON SAID ELEVATOR; A DEPOSITING TAPERED EDGE MEANS CARRIED BY SAID DECK AND DISPOSED AT AN EDGE OF SAID DECK FROM WHICH BLOCKS ARE DEPOSITED FROM SAID DECK AND ONTO SAID ELEVATOR; AND THIRD MEANS PIVOTALLY MOUNTING SAID TAPERED EDGE MEANS RELATIVE TO SAID DECK AND ON A SUBSTANTIALLY HORIZONTAL AXIS; DECK LOADING MEANS DISPOSED AT A LEVEL TO LOAD BLOCK ONTO SAID TAPERED EDGE MEANS, SAID TAPERED EDGE MEANS AND SAID DECK MOVABLE TOWARD AND AWAY FROM SAID LOADING MEANS; AND OPERATING MEANS FOR HOLDING SAID TAPERED EDGE MEANS UPWARDLY AT SAID LEVEL, WHEN ADJACENT SAID DECK LOADING MEANS, AND TO
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |