Rigid cover for spas and hot tubs
US11008769B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 3, 2018 |
| Grant date | May 18, 2021 |
| Priority date | — |
| Expiry date | Aug 3, 2038 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04H4/08
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A hard cover for spas, hot tubs and the like has an outer layer defining one or more cover portions that may be hinged together along a common top edge. Each cover portion internally includes a plurality of rigid panels, which may be made of expanded polystyrene or another rigid foam or the like. A support structure that mechanically couples and/or supports the panels is provided to improve the load-bearing capacity of the spa cover, optionally providing sufficient strength to conform to applicable safety standards. The support structure can include beams having various cross-sections, or combinations thereof, and may be provided in multiple segments that are shorter than the overall length of the cover. A vapor barrier film can be provided that encloses the panels and optionally some or all portions of the support structure to protect these components from degradation in the spa environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.