Abstract: A prefabricated living quarters structure (10) adapted to be received within an existing building such as a garage (12) attached to an existing house (14), the structure being comprised of a plurality of wall panels (28) which are joined together to define the exterior walls of the structure (10), the structure having overall dimensions only slightly smaller than the building (12) within which it is received so that the structure (10) essentially fully occupies the space of the existing building (12) within which it is received; the structure being particularly intended for use by the handicapped and having full living facilities therein, such as a complete bathroom unit (30), the structure (10) having means placing the same in communication with the exterior thereof and also with the interior of a house (14) to which the garage (12) which receives the structure (10) is attached.

Abstract: A bubble rake for removing the remaining steam from liquid water that is returning to heat-exchange surfaces after an initial separation from steam. The bubble rake is a channel-forming member having a cross section generally in the shape of an upside-down U. The bubble rake is disposed in a fluid-flow path so that the channel opens down and in the direction of the path. A stall zone formed by a rake traps steam in the channel, and the channel is positioned longitudinally at an angle with the horizontal so that the trapped steam migrates to its high end, where an opening allows the trapped steam to join the steam previously separated from the water.