Free-floating means and method for rolling pool covers
US5557811A · kind A · utility
Inventor
Key dates
| Filing date | Sep 16, 1991 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Sep 16, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S242/919
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
In accordance with the first embodiment of the invention, a first and second tube body is provided, the first tube body resting upon the upper surface of the cover, the second tube body beneath the cover. The first and second tube bodies are plugged together at the ends to form a tubular spindle-core apparatus which is extended to traverse a buoyant flexible pool cover utilizing the buoyancy of the cover to be free-floating with the cover upon the surface of the water and within the perimeter of the pool. In the second embodiment, a single tube body which is octagonal is provided as a spindle-core to be secured upon a buoyant flexible pool cover utilizing clips of similar geometric shape where the octagonal spindle-core shape provides a seating for clipping the buoyant flexible cover to the spindle-core. In all cases the spindle-core is positioned within the pool to a desired location intermediate the ends of the pool cover being traversed, the apparatus being sufficiently supported by the buoyancy of the flexible pool cover and is independent of any other structure for support other than the pool cover upon the surface of the water. In accordance with the method, the operator lift…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.