Drain Design for Use in a Polyurethane Composite Bathing Vessel
AssigneeMasco Bath Corporation
InventorsDavid Stuart Paskman, Scott Kapelanski, Michael Glenn Geels
Life of this patent
Estimating the term…
Abstract
A bathing vessel has a bottom, and a drain disposed in the bottom adjacent a blended area that is disposed between the side wall and the bottom. The side wall, the bottom wall, and the blended area are made of a first layer of rigid polyurethane material and a second layer of capping material attached to said first layer. A ratio of a density of the polyurethane backing adjacent the drain to a thickness of polyurethane backing is between 1-80:1. The side wall, the blended area and the bottom wall flex to absorb loads adjacent the drain.
Claims21
A bathing vessel, said bathing vessel comprising:
- a bottom,
- a side wall,
- a drain disposed in said bottom adjacent a blended area, said blended area disposed between said side wall and said bottom,
- wherein said side wall, said blended area and said bottom wall are constructed of a a sandwich having
- a first layer of rigid polyurethane material,
- a second layer of capping material attached to said first layer, wherein a ratio of a density of said polyurethane backing adjacent said drain to a thickness of polyurethane backing is between 1-80:1 and wherein said side wall, said blended area and said bottom wall flex to absorb loads adjacent said drain.
A bathing vessel, said bathing vessel comprising:
- a bottom,
- a side wall,
- a drain disposed in said bottom adjacent a blended area, said blended area disposed between said side wall and said bottom,
- wherein said side wall, said blended area and said bottom wall are constructed of a a sandwich having
- a first layer of rigid polyurethane material,
- a second layer of capping material attached to said first layer, and wherein said blended area has a first curve extending upwardly towards said side wall, a second curve extending upwardly from and attaching to said first curve and a third curve extending upwardly from and attaching to said second curve and attaching to said side wall.
Dependencies are inferred from the claim text.