US3252198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleanout device for continuous concrete pipe laying machine
Assignee: ESTATE OF JOE E LONG (DANIEL LONG ADMINISTRATOR)
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Filing: 1964-01-28
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Granted: 1966-05-24
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Expires: 1984-01-28
Abstract
No abstract record available.
Inventors
- 👤 Fuller Revilo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:51
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/024; F16L1/028; F16L1/038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A CLEANOUT DEVICE FOR A CONTINUOUS CONCRETE PIPE LAYING MACHINE HAVING: A. A GUIDE PORTION INCLUDING A SEMI-CYLINDRICAL BOTTOM PORTION AND UPSTANDING SIDES ARRANGED TO ENGAGE THE BOTTOM AND SIDES OF A PRE-DUG DITCH, B. A LATERALLY DISPOSED VERTICAL BAFFLE FIXED TO THE REAR END OF SAID GUIDE PORTION, C. AN UPWARDLY SLOPING PORTION OF SAID GUIDE PORTION EXTENDING REARWARDLY OF SAID BAFFLE, D. A SEMI-CYLINDRICAL CORE SUPPORT MEMBER FIXED TO AND VERTICALLY SPACED ABOVE SAID GUIDE PORTION CONFORMING TO THE POWER HALF OF THE BORE OF THE COMPLETED PIPE AND EXTENDING REARWARDLY THROUGH SAID BAFFLE, E. AND EVACUATING MEANS FOR CLEANING OUT CONCRETE FROM THE SPACE BETWEEN THE BOTTOM SURFACE OF SAID CORE SUPPORT MEMBER AND THE INSIDE OF SAID UPWARDLY SLOPING PORTION OF SAID GUIDE PORTION BELOW SAID UPSTANDING SIDES AND REARWARDLY OF SAID BAFFLE WHEN SAID LAYING MACHINE HAS COMPLETED ITS LAYING OPERATION AND IS RESTING IN SAID DITCH.
Claim 2
Dependent Claim
152 words
A CLEANOUT DEVICE FOR A CONTINUOUS CONCRETE PIPE LAYING MACHINE HAVING: A. A GUIDE PORTION INCLUDING A SEMI-CYLINDRICAL BOTTOM PORTION AND UPSTANDING SIDES ARRANGED TO ENGAGE THE BOTTOM AND SIDES OF A PRE-DUG DITCH, B. A LATERALLY DISPOSED VERTICAL BAFFLE FIXED TO THE REAR END OF SAID GUIDE PORTION, C. AN UPWARDLY SLOPING PORTION OF SAID GUIDE PORTION EXTENDING REARWARDLY OF SAID BAFFLE, D. A SEMI-CYLINDRICAL CORE SUPPORT MEMBER FIXED TO AND VERTICALLY SPACED ABOVE SAID GUIDE PORTION CONFORMING TO THE POWER HALF OF THE BORE OF THE COMPLETED PIPE AND EXTENDING REARWARDLY THROUGH SAID BAFFLE, E. AND EVACUATING MEANS FOR CLEANING OUT CONCRETE FROM THE SPACE BETWEEN THE BOTTOM SURFACE OF SAID CORE SUPPORT MEMBER AND THE INSIDE OF SAID UPWARDLY SLOPING PORTION OF SAID GUIDE PORTION BELOW SAID UPSTANDING SIDES AND REARWARDLY OF SAID BAFFLE WHEN SAID LAYING MACHINE HAS COMPLETED ITS LAYING OPERATION AND IS RESTING IN SAID DITCH.
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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) | 1969-05-23 | 1969-11-22 | 1970-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-23 | 1973-11-22 | 1974-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-23 | 1977-11-22 | 1978-05-24 | $7700.00 | Window Closed / Lapsed |