US3274906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint installation apparatus
Assignee: Edoco Technical Products Inc
•
Filing: 1963-12-09
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Granted: 1966-09-27
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Worson Lee
- 👤 Robert F Dill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:41
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/02; E01C23/026; E01C19/00; E01C19/48; E01C19/4833; E01C19/484; E01C19/4846; E01C23/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
APPARATUS FOR PROVIDING A JOINT IN CONCRETE LAID UPON A PREPARED BASE, SAID APPARATUS COMPRISING: A FRAME MOVABLE FORWARDLY OVER SAID PREPARED BASE; A SMOOTHING ELEMENT CARRIED BY SAID FRAME AND HAVING A DOWNWARDLY AND REARWARDLY DIRECTED PORTION FOR FORCING CONCRETE DOWNWARDLY; AN ELONGATED JOINT INSERT LAYING TUBE HAVING A PASSAGE FOR RECEIVING A JOINT INSERT AND FURTHER HAVING A DISCHARGE PORTION SPACED IMMEDIATELY BELOW SAID PORTION OF SAID SMOOTHING ELEMENT FOR DISCHARGING THE JOINT INSERT FOR EMBEDMENT IN THE PLASTIC CONCRETE AS SAID APPARATUS MOVES FORWARDLY; AND VIBRATION MEANS FOR VIBRATING SAID SMOOTHING ELEMENT AND SAID DISCHARGE PORTION WHEREBY PLASTIC CONCRETE PASSING THROUGH THE SPACE THEREBETWEEN TENDS TO CONSOLIDATE ABOUT SAID DISCHARGE PORTION AND ABOUT THE DISCHARGED JOINT INSERT.
Claim 2
Dependent Claim
120 words
APPARATUS FOR PROVIDING A JOINT IN CONCRETE LAID UPON A PREPARED BASE, SAID APPARATUS COMPRISING: A FRAME MOVABLE FORWARDLY OVER SAID PREPARED BASE; A SMOOTHING ELEMENT CARRIED BY SAID FRAME AND HAVING A DOWNWARDLY AND REARWARDLY DIRECTED PORTION FOR FORCING CONCRETE DOWNWARDLY; AN ELONGATED JOINT INSERT LAYING TUBE HAVING A PASSAGE FOR RECEIVING A JOINT INSERT AND FURTHER HAVING A DISCHARGE PORTION SPACED IMMEDIATELY BELOW SAID PORTION OF SAID SMOOTHING ELEMENT FOR DISCHARGING THE JOINT INSERT FOR EMBEDMENT IN THE PLASTIC CONCRETE AS SAID APPARATUS MOVES FORWARDLY; AND VIBRATION MEANS FOR VIBRATING SAID SMOOTHING ELEMENT AND SAID DISCHARGE PORTION WHEREBY PLASTIC CONCRETE PASSING THROUGH THE SPACE THEREBETWEEN TENDS TO CONSOLIDATE ABOUT SAID DISCHARGE PORTION AND ABOUT THE DISCHARGED JOINT INSERT.
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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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |