Apparatus for treating surfaces of ships' hulls or the like
Abstract
Abstract A CLEANING APPARATUS FOR SURFACES OF SHIPS'' HULLS OR THE LIKE WHEREIN ONE OR MORE WORKING NOZZLES DISCHARGE JETS OF HIGHLY PRESSURIZED WATER THROUGH INTERCEPTING NOZZLES WHICH DIRECT THE JETS AGAINST THE SURFACE TO BE CLEANED IN SUCH A WAY AS TO CREATE THEREIN SUCTION WHICH COUNTERACTS THE REACTION FORCES AND CAUSES ROLLERS OR LIKE DISTANCING ELEMENTS OF THE APPARATUS TO BEAR AGAINST THE SURFACE AND TO MAINTAIN THE LATTER AT A PREDETERMINED MINIMUM DISTANCE FROM THE OUTLETS OF THE INTERCEPTING NOZZLES. A TURBINE WHICH IS DRIVEN BY PRESSURIZED WATER CAN BE EMPLOYED TO DRIVE A DISTRIBUTOR FOR ONE OR MORE JETS OF GRANULAR MATERIAL WHICH IMPINGE AGAINST THE SURFACE TO BE TREATED IN THE INTERIOR OF A LARGE INTERCEPTING NOZZLE AND TO RE- BOUND INTO THE JETS OF PRESSURIZED WATER TO BE THEREBY PROPELLED FOR THE SECOND TIME AGAINST THE SURFACE IN ORDER TO ASSIST THE CLEANING ACTION OF WATER.
Inventors
- 👤 Paul Hammelmann
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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |