Patent ID: 8230534
Filing Date: 2012-07-31
Classification: A47K,E03B,Y02A

Abstract:
1. A bathtub comprising: a tub having four sidewalls, a bottom, and a water capacity; a bather access opening in one sidewall; a door mounted on said one sidewall and having a top edge, a closed door position adjacent said access opening, and an open door position substantially clear of said access opening; a gray water reservoir having a volumetric capacity approximately the water capacity of the tub, and having a reservoir drain opening, and disposed lower in elevation than said tub; a tub drain comprising a drain opening in the tub and a drain passage that conducts water from the tub into the reservoir while the door is in the closed position; and wherein the tub drain is a linear sheet-flow drain comprising an elongated slot located in the bottom of the tub, and said drain passage is a linear sheet-flow passage; said bathtub further comprising an inflatable seal located between said door and said tub such that when said seal is inflated, water located in said tub is prevented from flowing into said drain.