Patent ID: 6374854
Filing Date: 2002-04-23
Classification: E04H,F16K,Y10S,Y10T

Abstract:
Device for preventing permanent entrapment that includes,a hollow cylindrical body with internally threaded inlet and outlet port for installation in a suction line, a cylindrical wall chamber contained in said body, a hollow cylindrical entrapper member which communicates with inlet and outlet ports when open, with grooves on said member, contained in said chamber, said chamber contains entrappee member with complementary sealing member which moves axially through said chamber, a guide cover member closed tight and secured by fastening means to said chamber, a shaft member which has a locking groove and moves through said guide cover member, connected to said entrappee member, a spring means connected to said shaft, acting against said guide cover, a locking member connected by fastening means to said guide cover, said locking member, locking said entrappee member by means of said locking groove.