| CPC B23P 15/26 (2013.01) [F24F 1/0003 (2013.01); F24F 1/029 (2019.02); F24F 1/031 (2019.02); F24F 13/30 (2013.01); F25D 23/10 (2013.01); Y10T 29/49359 (2015.01)] | 20 Claims |

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1. An air conditioning unit comprising:
a sill coupling component configured to be coupled to a sill of a window by widening or narrowing a cavity defined by the sill coupling component to correspond to a thickness of the sill between an internal environment and an external environment and by disposing the sill coupling component over the sill with the sill within the cavity and first and second plates of the sill coupling component extending downward from the sill of the window respectively in the internal environment and the external environment;
an external coupling component and a pivot arm configured to be attached to the sill coupling component with the pivot arm disposed extending away from the window and parallel to a top face of the sill coupling component that extends over the sill, with the pivot arm and the sill coupling component defining respective pivot arm guide slots and sill arm guide slots disposed in parallel and with the pivot arm guide slots having a coincident axis with the sill arm guide slots, the sill coupling component, the external coupling component and the pivot arm defining a bracket; and
an external unit configured to:
be positioned on top of the bracket, the external unit configured to extend over the sill and out the window with an internal face of the external unit engaging the bracket, with a bottom of the external unit facing the external environment outside the window and a top face of the external unit facing the internal environment inside the window,
move on the top of the bracket onto the pivot arm with static non-rotatable guiding wings of the external unit disposed and secured by the bracket, and
be rotated downward via the pivot arm such that the bottom of the external unit faces downward and the top of the external unit faces upward, with the external unit disposed in the external environment and extending downward below the sill of the window and with the internal face of the external unit facing the bracket, rotating the pivot arm and external unit downward causing the pivot arm guide slots to have a perpendicular axis with the sill arm guide slots.
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