Patent ID: 6972808

Claim:
A cathode-ray tube (CRT) assembly of a projection television, comprising: a CRT for creating an image; a lens for magnifying said image created by said CRT and for projecting said image onto a screen; a coupler disposed between said CRT and said lens for coupling said lens to said CRT, and defining a cooling liquid receptacle which is filled with a cooling liquid; a cooling liquid pouring inlet formed on one side of said coupler, and providing a passage way for pouring the cooling liquid into said cooling liquid receptacle; and an oilpack connected to said cooling liquid pouring inlet, and communicating with said cooling liquid receptacle so that a portion of the cooling liquid is contained in said oil pack when the cooling liquid in said cooling liquid receptacle expands and said portion of the cooling liquid overflows from said cooling liquid receptacle; said oilpack further comprising: a sealed space; a pack holder disposed between said sealed space and said cooling liquid pouring inlet, and having a through hole communicating with both said sealed space and said cooling liquid receptacle; and oilpack coupling means formed on said pack holder for coupling said pack holder to said cooling liquid pouring inlet.