Hold-open door closure assembly and method for using same

A case comprising:

• a case frame;
• a plurality of case walls connected to said case frame and forming an enclosed compartment for containing merchandise said case walls forming a door opening;
• at least one door fitted within said door opening and being hinged to swing about a door hinge axis from a closed position in sealed covering relation over said door opening to a first open position and to a second open position wherein said door is open wider than in said first open position;
• a door closer means connected to both said door and said case frame and yieldably urging said door to said closed position whenever said door is in a position other than said second open position, said door closer means yieldably holding said door against swinging movement whenever said door is in said second open position;
• said door having a track mounted thereon;
• a guide member connected to said door closer means and being movably mounted in said track for movement therein during movement of said door from said closed to said first and second open positions;
• a track stop separate from said guide member and detachably mounted to said track in a predetermined position wherein said track stop permits movement of said guide member within said track during movement of said door between said closed and said first open positions and blocks movement of said guide member in said track to prevent said door from moving from said first open to said second open position.