Street-cleaning machine
Abstract
Abstract A STREET-CLEANING MACHINE OF THE SELF-PROPELLED VEHICLE TYPE WHICH INCLUDES FRAME-MOUNTED BRUSHES POSITIONED FOR CONTACT WITH THE STREET, A VACUUM ASSEMBLY MOUNTED TO THE REAR OF THE BRUSHES TO RECEIVE DEBRIS THEREFROM, AND A DEBRIS COLLETION BIN CARRIED ON THE FRAME AND RECEIVING DEBRIS DISCHARGED FROM THE VACUUM ASSEMBLY. THE COLLECTION BIN HAS AT LEAST ONE AIR OUTLET OPENING THEREFROM AND HAS SCREEN AND BAFFLE MEANS POSITIONED BETWEEN THE INTERIOR OF THE BIN AND SUCH DISCHARGE OPENINGS. A PLURALITY OF CLOTH AIR FILTERS ARE CONNECTED TO THE OUTLET OPENINGS AND EACH IS FORMED TO CONTAIN A PLURALITY OF VERTICALLY EXTENDING CHANNELS THROUGH WHICH FINE DIRT AND DUST ARE PRECIPITATED INTO A DUST CHAMBER LOCATED ABOVE THE COLLECTION BIN.
Inventors
- 👤 Werner W Young
Bibliographic Details
Claims Analysis
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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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |