Swimming pool cleaner
Abstract
Abstract A MACHINE FOR CLEANING THE BOTTOM AND THE SURFACE WATER OF SWIMMING POOLS WHEREIN THE MACHINE IS MOVABLE ALONG THE BOTTOM AND IS PROVIDED WITH A GUIDANCE CONTROL SYSTEM WHICH WILL CHANGE THE DIRECTION OF TRAVEL A PREDETERMINED AMOUNT AS THE MACHINE ENCOUNTERS OBSTRUCTIONS TO THE SIDE OR FRONT SUCH AS THE SIDEWALLS OF THE POOL. THE MACHINE MAY BE OF A CRAWLER TYPE AND HAS A TRANSMISSION FOR AUTOMATICALLY CONTROLLING THE FORWARD AND REVERSE ROTATION OF THE DRIVE WHEELS WHEREBY ONE OR BOTH DRIVE WHEELS MAY BE OPERATING IN THE SAME DIRECTION AT THE SAME TIME. SENSING MEANS FOR ACTUATING THE TRANSMISSION ARE PROVIDED AND ARE ADJUSTABLE TO ASSURE THAT THE MACHINE WILL CLEAN THE MAXIMUM AREA OF THE POOL BUT PREVENT IT FROM BEING OVERTURNED.
Inventors
- 👤 Robert R Myers
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |