Coolant container cap assembly

A coolant container assembly comprising;

• a container for storing fluid having a neck portion defining an opening into said container;
• a cap having an exterior cover for removeably securing said cap to said neck of said container;
• said opening of said neck having a first sealing ridge and a second sealing ridge;
• said cap including a valve housing member secured to said cover and having a lower housing portion and an upper housing portion;
• a first sealing gasket mounted to said lower housing portion for selectively engaging and sealing said cap with said first sealing ridge of said container;
• a second sealing gasket mounted to said upper housing portion for selectively engaging and sealing said cap with said second sealing ridge of said container;
• and
• said assembly characterized by an adjustment device mounted between said upper housing portion and said second sealing gasket to maintain said sealing engagement of said second sealing gasket with said second sealing ridge when said upper and lower housing portions move outwardly from said container to detach said first sealing gasket from said first sealing ridge of said container such that any gases within said container are vented before said cap is completely removed.

A coolant container cap assembly for use with a coolant container having first and second sealing ridges, said cap assembly comprising;

• an exterior cover for removeably securing said cap assembly to the container;
• a valve housing member secured to said cover and having a lower housing portion and an upper housing portion;
• a first sealing gasket mounted to said lower housing portion for selectively engaging and sealing said cap assembly with the first sealing ridge of the container;
• a second sealing gasket mounted to said upper housing portion for selectively engaging and sealing said cap assembly with the second sealing ridge of the container;
• and
• said assembly characterized an adjustment means for adjusting said upper housing portion to allow relative movement of said first sealing gasket with respect to said second sealing gasket, said adjustment means permitting said first sealing gasket to detach from the first sealing ridge of the container while maintaining said sealing engagement of said second sealing gasket with the second sealing ridge of the container when said cap assembly is removed from the coolant container.