Machine for cleaning concrete forms
Abstract
Abstract A MACHINE FOR CLEANING ELONGATED CONCRETE FORMS OF THE TYPE THAT INCLUDE LATERALLY SPACED HORIZONTAL SURFACES AND DEPENDING TROUGH MEANS AND WHICH MACHINE INCLUDES A FRAME, AND CARRIED BY THE FRAME A PLURALITY OF HORIZONTAL ROTARY BRUSH MEANS FOR FRICTIONALLY ENGAGING THE HORIZONTAL SURFACES OF THE FORM, VERTICALLY DISPOSED ROTARY BRUSH MEANS FOR ENGAGING THE WALLS OF THE TROUGH MEANS, VERTICALLY ADJUSTABLE CASTOR WHEELS, A DRIVE MEANS AND POWER TRANSMISSION MEANS OPERABLY COUPLING THE DRIVE MEANS WITH THE HORIZONTAL AND VERTICAL ROTARY BRUSH MEANS FOR SIMULTANEOUSLY ROTATING ALL THE BRUSH MEANS TO PROPEL THE MACHINE ALONG THE FORM TO REMOVE DIRT AND CONCRETE PARTICLES THEREFROM.
Inventors
- 👤 Roger Richard
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |