Patent ID: 8104240

Claim:
A method of supporting a portable air conditioner in a window frame assembly, said air conditioner having an elongated, upwardly extending flange along its inwardly facing face, said window frame assembly having a window sash which are slidable vertically in channels in the sides of said window frame assembly, said method comprising: moving said window sash upwardly to make room for an air conditioner and an elongated rail assembly to be installed within said window frame assembly; placing said elongated rail assembly having channel-engaging tabs on each end thereof into channels on each side of said window frame assembly; placing said portable air conditioner within a lower portion of said opened window frame assembly; and maneuvering said flange on said upper front edge of said air conditioner into supportive abutment with a side of said elongated rail assembly, so as to eliminate any force on said window sash by said air conditioner.