Patent ID: 8739323
Filing Date: 2014-06-03
Classification: A61H,B01F

Abstract:
1. An air injection bathtub comprising: a body part having a side wall portion and a bottom portion for retaining water in the body part; a plate part having a plate shape extending generally horizontally to cover a substantial surface area of the bottom portion of the body part and in parallel relation to an upper surface of the bottom portion of the body part, the plate part attached at an upper side of the bottom portion of the body part; a valve disposed below the bottom portion of the body part and having an air conduit coupled thereto to supply air into the water retained in the body part; and a plurality of air injection through-holes formed in the plate part, wherein the body part and the plate part have a connection groove and a plurality of elongated air passing grooves disposed between the body part and the plate part, the connection groove disposed at a corresponding location to the valve, wherein said plurality of elongated air passing grooves communicate with the connection groove, and wherein said plurality of air injection through-holes are distributed in the plate part at locations corresponding to the elongated air passing grooves to deliver air to the air injection through-holes through the elongated air passing grooves and via the air conduit and the valve to generate air bubbles in the water.