Abstract: An Air Conditioner Educational Demonstration System is composed of eighteen main components and removable interlocking tubing lines along designated component points. A teacher can disconnect various components and demonstrate characteristics there. The main components are: 1) condenser; 2) gauge port #1; 3) high pressure service valve; 4) gauge port #2; 5) open/close valve #1; 6) gauge port #3; 7) metering device and evaporator; 8) nitrogen pressure port; 9) gauge port #4; 10) open/close valve #2; 11) gauge port #5; 12) low pressure service valve; 13) gauge port #6; 14) compressor; 15) separation valve; 16) low pressure line; 17) high pressure line; 18) nitrogen tank. The system having: a condenser; a compressor; and an evaporator; such that the condenser is removably connected to the evaporator and removably connected to the compressor; and wherein a nitrogen tank is removably connected to the evaporator through a port on the evaporator.

Abstract: A terminal contact assembly is provided for hermetically sealing the interior and the exterior of an electronic device. The terminal contact assembly includes a terminal contact extending through an opening in the housing of the electronic device. The terminal contact has an inner end within the interior of the electronic device and an outer end. A deformable seal is positioned about the terminal contact within the opening through the housing. An inner insulator is positioned within the interior of the electronic device adjacent the inner surface thereof and an outer insulator is positioned about the terminal contact adjacent the outer surface of the housing. A torque generating structure generates a deformable force on the seal such that the seal seals the opening through the housing.

Abstract: A terminal contact assembly is provided for hermetically sealing the interior and the exterior of an electronic device. The terminal contact assembly includes a terminal contact extending through an opening in the housing of the electronic device. The terminal contact has an inner end within the interior of the electronic device and an outer end. A deformable seal is positioned about the terminal contact within the opening through the housing. An inner insulator is positioned within the interior of the electronic device adjacent the inner surface thereof and an outer insulator is positioned about the terminal contact adjacent the outer surface of the housing. A torque generating structure generates a deformable force on the seal such that the seal seals the opening through the housing.