Patent ID: 9254066
Filing Date: 2016-02-09
CPC Classification: A47K,E03B,Y02A

Claim Text:
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; and a tub drain comprising a drain opening in the tub and a drain passage that conducts water from the tub into the reservoir; wherein the tub drain comprises an annular opening in the bottom of the tub, and said drain passage is an annular-flow passage; wherein the door opens by sliding downward, and wherein the top edge of the door is substantially level with the bottom of the tub when in the open position; and further comprising a gutter disposed under said door and a gutter drain connection between the gutter and the reservoir or a sewer, and wherein the door opens downward into the gutter.