Patent ID: 6161578
Filing Date: 2000-12-19
Classification: F16L,Y10T

Abstract:
A coupling valve assembly, comprising:a female coupling defining a female coupling fluid passageway therethrough, the female coupling including a female valve which is normally biased into a closed position by a female coupling spring so as to close the female coupling fluid passageway;a male coupling defining a male coupling fluid passageway therethrough, the male coupling including a male valve which is normally biased into a closed position by a male coupling spring so as to close the male coupling fluid passageway;a clip coupling/decoupling the male coupling and the female coupling so as to open/close the fluid passageways; anda plurality of seals defining fluid pressurized areas, each of the plurality of seals having a sealing diameter, three of the seals being disposed in the female coupling, and two of the plurality of seals being disposed in the male coupling, the sealing diameter of one of the seals in the female coupling being the same as the sealing diameter of one of the seals in the male coupling, the sealing diameter of the other two seals in the female coupling being the same as the sealing diameter of the other one seal in the male coupling, the seals being arranged and configured such that a fluid pressure balance within the male and female couplings in a coupled state is provided.