Mobile suction cleaning device
Abstract
Abstract A SUCTION CLEANING DEVICE ADAPTED TO BE MOVED IN A FORWARD DIRECTION OVER A SURFACE TO REMOVE DEBRIS AND OTHER MATERIAL THEREFROM, INCLUDING A DEBRIS HOPPER, A SUCTION DUCT LEADING TO THE HOPPER, FAN MEANS TO DRAW AIR THROUGH THE DUCT, AND AN IMPROVED PICK-UP CHAMBER INTO WHICH THE DUCT EXTENDS REMOVED FROM THE HOPPER ADJACENT TO THE SURFACE TO BE CLEANED. THE IMPROVED PICK-UP CHAMBER IS COMPRISED OF AT LEAST ONE SUCTION NOZZLE INLET OPENING POSITIONED WITHIN THE PICK-UP CHAMBER AND IN COMMUNICATION WITH THE SUCTION DUCT, AND AIR JET MEANS HAVING A PLURALITY OF AIR OUTLET OPENINGS ARRANGED IN THE CHAMBER FORWARD OF AND ON OPPOSITE SIDEF OF THE SUCTION NOZZLE INLET OPENINGS, THE AIR JET MEANS POSSESSING HIGH IMPACT CHARACTERISTICS TO LOOSEN THE MATERIAL FROM THE SURFACE AND DIRECT IT TOWARD THE PATH OF MOVEMENT TRAVERSED BY THE SUCTION NOZZLE INLET OPENINGS.
Inventors
- 👤 Emil J Hank
- 👤 Henry D Luther
Bibliographic Details
Claims Analysis
Total Claims: 0References 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 |