Patent ID: 6739352
Filing Date: 2004-05-25
Classification: F01P,F28F,Y10T

Abstract:
A self-piercing radiator drain valve, comprising:a radiator comprising: a coolant reservoir tank; a foot connected with said tank, said foot having a blind bore terminating at a intrangible bore end wall defining a portion of bottom wall of said tank; and a self-piercing valve body comprising: a drive head connected to said first end of said shaft; a pointed piercing tip connected to said first end of said shaft; and a seal connected to said second end of said shaft in circumscribing relation to said piercing tip; wherein said self-piercing valve body is threadingly engageable with said blind bore such that in a threadingly engaged state of said self-piercing valve body with respect to said blind bore, said piercing tip pierces through said bore end wall, creating a flow opening therethrough and said seal is in sealing relation with respect to said flow opening when said self-piercing valve body is fully inserted within said bore end blind bore.