Apparatus for cleaning of canister type air filters
Abstract
Abstract APPARATUS FOR WASHING HOLLOW CYLINDRICAL ENGINE AIR CLEANERS OR FILTER ELEMENTS ON INSIDE AND OUTSIDE SURFACES SIMULTANEOUSLY AND WHILE THE FILTER IS IN A VERTICAL ORIENTATION. A PAIR OF WASHING STATIONS ARE PROVIDED, EACH WITH A CENTRALLY APERTURED TURNTABLE ON WHICH THE FILTER ELEMENT IS PLACED FOR ROTATION ABOUT A VERTICAL AXIS. SPRAY NOZZLES INSIDE AND OUTSIDE THE FILTER ELEMENT WASH A PORTION OF THE LENGTH WITH A FAN SHAPED SPRAY OF CLEANING LIQUID, AND AS THE FILTER ROTATES, THE SPRAYS PROGRESSIVELY MOVE DOWNWARDLY TOGETHER ALONG THE LENGTH OF THE FILTER FOR THROUGHLY AND UNIFORMLY WASHING THE ENTIRE LENGTH OF THE FILTER. THE LENGTH OF TRAVEL AND THE RADIAL POSITION OF THE SPRAY NOZZLES RELATIVE TO THE TURNTABLE ARE VARIABLE FOR ACCOMMODATING DIFFERENT LENGTHS AND DIAMETERS OF FILTERS. A PAIR OF CLEANING STATIONS ARE PROVIDED IN A PREFERRED EMBODIMENT SO THAT A BALANCED SPRAY NOZZLE ASSEMBLY CAN BE TRANSLATED ALONG THE LENGTH OF THE FILTERS BY A SIMPLE RATCHET MECHANISM. A STATION MAY ALSO BE PROVIDED FOR MANUAL INSPECTION AND CLEANING OF AIR FILTERS.
Inventors
- 👤 Benjamin F Tobin
- 👤 Milton J Harris
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |