초록 ▼

A hose coupling is provided with metallic male and female members which are engaged by means of an internally threaded sleeve which is rotatably secured to the female member. The male and female members are provided with tapered male and female seating surfaces. The male seating surface is interrupt

A hose coupling is provided with metallic male and female members which are engaged by means of an internally threaded sleeve which is rotatably secured to the female member. The male and female members are provided with tapered male and female seating surfaces. The male seating surface is interrupted by a circumferential groove cut perpendicular to the axis of the bore of the male member. A deformable O-ring is carried in the groove. The cross-sectional area of the groove is greater than that of the O-ring.

대표청구항 ▼

A house coupling, comprising: a female member having a central bore and a frustoconical female seating surface; an internally threaded sleeve rotatably secured to said female member; and an externally threaded male member with threads engaging the threads of said sleeve, having a central bore coaxia

A house coupling, comprising: a female member having a central bore and a frustoconical female seating surface; an internally threaded sleeve rotatably secured to said female member; and an externally threaded male member with threads engaging the threads of said sleeve, having a central bore coaxial with the bore of said female member, a frustoconical male seating surface complementary to said female seating surface, an annular groove in said male seating surface directed substantially perpendicular to the axis of said bore with one side of the groove having a greater depth than the other side, an O-ring of deformable and non-compressible material in said groove, the cross-sectional area of said groove being larger than that of said O-ring, said O-ring having a cross-sectional height which is greater than the minimum depth of said groove and extending beyond an imaginary frustoconical surface connecting the minimum and greater depth sides of the groove when undeformed, said O-ring having a size and shape with respect to the size and shape of the groove such that the O-ring is deformed towards the greater depth side of the groove by said female seating surface, said groove being positioned so that said female seating surface sealingly contacts said male seating surface on each side of said groove with no portion of the O-ring being between said male and female surfaces, said male member having a thickness between said central bore and the bottom of said groove sufficient to withstand the pressure exerted through said O-ring without deformation of the male member.