US3605581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete forming machine
Assignee: Individual
•
Filing: 1969-06-02
•
Granted: 1971-09-20
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Expires: 1989-06-02
Abstract
Abstract A CONCRETE DISTRIBUTING MACHINE FOR SLIP FORMING CURB AND GUTTER ALONG A SLAB, INCLUDING A STEERABLE, DRIVEN CARRIER FRAME WITH A TROUGH FOR CONCRETE AT THE FORWARD END. A SCREW MOVES THE CONCRETE TRANSVERSELY FROM THE TROUGH INTO THE OPEN BOTTOMED WELL AT THE SIDE. A SLIP FORM EXTENDS REARWARDLY FROM THE TRAILING EDGE OF THE WELL. ADJUSTABLE SUPPORTS FOR THE TROUGH PERMIT ADJUSTMENT OF THE PITCH AND HEIGHT OF THE SLIP FORM. THE CARRIER FRAME FOR THE MACHINE HAS STEERABLE DRIVE WHEELS AT EACH END TO ENABLE HOLDING ACCURATE WIDTH DIMENSIONS OF THE FORMED CONCRETE, PARTICULARLY AROUND CURVES. THE LATERAL POSITION OF THE SLIP FORM AT THE BOTTOM OF THE WELL IS ADJUSTABLE.
Inventors
- 👤 Blaine Heaton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:29
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/48; E01C19/4886; E01C19/4893
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |